Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
Permit D17-0143 - BOEING #9-150 - 2-STORY FITNESS BUILDING DEMOLITION
BOEING #9-150 DEMOLITION 10500 W MARGINAL PL S D17-0143 Parcel No: Address: 0 City of Tukwila 0 Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Phone: 206-431-3670 Inspection Request Line: 206-438-9350 Web site: http://www.TukwilaWA.gov DEVELOPMENT PERMIT 0423049150 10500 W MARGINAL PL S BLDG 9-150 Project Name: BOEING #9-150 - DEMOLITION Permit Number: D17-0143 Issue Date: 9/22/2017 Permit Expires On: 3/21/2018 Owner: Name: Address: Contact Person: Name: Address: Contractor: Name: Address: License No: Lender: Name: Address: DESIMONE TRUST OXBOW 2601 1201 THIRD AVE STE #5010 C/O BNY MELLON NA, SEATTLE, WA, 98101 JOHN S MURDOCH PO BOX 3707 MC 46-88 , SEATTLE, WA, 98124 BOEING COMPANY, THE 100 N RIVERSIDE, M/C 5003-4027 , CHICAGO, IL, 60606-1596 BOEINC*294ML BOEING COMPANY THE PO BOX 3707 M/C 20-00 PROPERTY TAX DEPT, SEATTLE, WA, 98124 Phone: (253) 350-5522 Phone: (312) 544-2535 Expiration Date: 1/18/2019 DESCRIPTION OF WORK: DEMOLITION OF A 67,400 SQ FT 2 STORY BOEING FITNESS CENTER PROJECT ON TUKWILA WATER & VALLEY VIEW SEWER. Project Valuation: $939,800.00 Type of Fire Protection: Sprinklers: YES Fire Alarm: NO Type of Construction: IIB Electrical Service Provided by: TUKWILA Fees Collected: $16,722.45 Occupancy per IBC: B Water District: TUKWILA Sewer District: VALLEY VIEW Current Codes adopted by the City of Tukwila: International Building Code Edition: International Residential Code Edition: International Mechanical Code Edition: Uniform Plumbing Code Edition: International Fuel Gas Code: 2015 2015 2015 2015 2015 National Electrical Code: WA Cities Electrical Code: WAC 296-46B: WA State Energy Code: 2014 2014 2014 2015 Public Works Activities: Channelization/Striping: Curb Cut/Access/Sidewalk: Fire Loop Hydrant: Flood Control Zone: Hauling/Oversize Load: Land Altering: Landscape Irrigation: Sanitary Side Sewer: Sewer Main Extension: Storm Drainage: Street Use: Water Main Extension: Water Meter: 0 C1 Volumes: Cut: 0 Fill: 1900 Number: 0 No Permit Center Authorized Signature: (ilyid -N Date: I hearby certify that I have read and examined this permit and know the same to be true and correct. All provisions of law and ordinances governing this work will be complied with, whether specified herein or not. The granting of this permit does not presume to give authority to violate or cancel the provisions of any other state or lo .ws r-:ulating construction or the performance of work. I am authorized to sign and obtain this develop ent • -r Jnd agree to the conditions attached to this permit. p ..e2Ali Signa Print N N1 ?c�ty Dater I1 2O/? This permit shall become null and void if the work is not commenced within 180 days for the date of issuance, or if the work is suspended or abandoned for a period of 180 days from the last inspection. PERMIT CONDITIONS: 1: ***BUILDING PERMIT CONDITIONS*** 2: Work shall be installed in accordance with the approved construction documents, and any changes made during construction that are not in accordance with the approved construction documents shall be resubmitted for approval. 3: All permits, inspection record card and approved construction documents shall be kept at the site of work and shall be open to inspection by the Building Inspector until final inspection approval is granted. 4: Remove all demolition rubble and loose miscellaneous material from lot or parcel of ground, properly cap the sanitary sewer connections, and properly fill or otherwise protect all basements, cellars, septic tanks, wells, and other excavations. Final inspection approval will be determined by the building inspector based on satisfactory completion of this requirement. 5: VALIDITY OF PERMIT: The issuance or granting of a permit shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of the building code or of any other ordinances of the City of Tukwila. Permits presuming to give authority to violate or cancel the provisions of the code or other ordinances of the City of Tukwila shall not be valid. The issuance of a permit based on construction documents and other data shall not prevent the Building Official from requiring the correction of errors in the construction documents and other data. 7: Accumulation of combustible waste material is prohibited during the demolition phase of this project. Remove and properly dispose of all waste material prior to the close of the working day and as often throughout the day as needed. 8: All interior demo debris must be removed prior to demo of the automatic sprinkler system. Contact the Tukwila Fire Prevention Bureau at 206/575-4407 for an inspection of the building prior to shut down of the automatic sprinkler system. 9: Fire Department access and existing hydrants shall be constantly maintained during demolition and construction. 10: Maintain coverage and operability of portable fire extinguishers, sprinkler systems and fire alarm systems during demolition and construction. 6: Contact The Tukwila Fire Prevention Bureau to witness all required inspections and tests. (City Ordinances #2436 and #2437) 11: Any overlooked hazardous condition and/or violation of the adopted Fire or Building Codes does not imply approval of such condition or violation. 12: These plans were reviewed by Inspector 511. If you have any questions, please call Tukwila Fire Prevention Bureau at (206)575-4407. 13: Have the applicants contractor contact the Fire Marshal Don Tomaso, 206-971-8723 to discuss the use of the facility for fire department training prior to demolition starting. 14: ***PUBLIC WORKS PERMIT CONDITIONS*** 15: Call to schedule mandatory pre -construction meeting with Dave Stuckle, Public Works Inspector, (206) 433- 0179. 31: Sanitary sewer capping and pipe removal shall be coordinated and inspected by Valley View Sewer District, phone 206 242-3236. 16: The applicant or contractor must notify the Public Works Inspector at (206) 433-0179 upon commencement and completion of work at least 24 hours in advance. All inspection requests for utility work must also be made 24 hours in advance. 17: Prior to construction, all utilities in the vicinity shall be field located. NOTE: For City of Tukwila utility locates, call 811 or 1-800-424-5555. 18: Permit is valid between the weekday hours of 7:00 a.m. and 5:00 p.m. only. Coordinate with the Public Works Inspector for any work after 5:00 p.m. and weekends. 19: No work under this permit during weekend hours without prior approval by Public Works. Coordinate with the Public Works Inspector. 20: Work affecting traffic flows shall be closely coordinated with the Public Works Inspector. Traffic Control Plans shall be submitted to the Inspector for prior approval. 21: Flagging, signing and coning shall be in accordance with MUTCD for Traffic Control. Contractor shall provide certified flagmen for traffic control. Sweep or otherwise clean streets to the satisfaction of Public Works each night around hauling route (No flushing allowed). Notify Public Works Inspector before 12:00 Noon on Friday preceding any weekend work. 22: Any material spilled onto any street shall be cleaned up immediately. 23: Hauling 6 loaded vehicles per hour/8 hours a day for 2 or more consecutive days or hauling hazardous waste shall require application for a Hauling Permit prior to any associated activity. 24: Temporary erosion control measures shall be implemented as the first order of business to prevent sedimentation off-site or into existing drainage facilities. 25: The site shall have permanent erosion control measures in place as soon as possible after final grading has been completed and prior to the Final Inspection. 26: From October 1 through April 30, cover any slopes and stockpiles that are 3H:1V or steeper and have a vertical rise of 10 feet or more and will be unworked for greater than 12 hours. During this time period, cover or mulch other disturbed areas, if they will be unworked more than 2 days. Covered material must be stockpiled on site at the beginning of this period. Inspect and maintain this stabilization weekly and immediately before, during and following storms. 27: From May 1 through September 30, inspect and maintain temporary erosion prevention and sediment at least monthly. All disturbed areas of the site shall be permanently stabilized prior to final construction approval. 28: Applicant shall obtain sanitary side sewer permit from Valley View District (206-242-3236). 29: Work shall be performed in accordance with per the Geotechnical Engineer/Soils Engineer report. 30: Maintain emergency, pedestrian, and vehicular access to buildings, trails and transit at all times. PERMIT INSPECTIONS REQUIRED Permit Inspection Line: (206) 438-9350 1700 BUILDING FINAL** 5200 EROSION MEASURES 5210 EROSION MEASURES FNL 1400 FIRE FINAL 5020 FIRE LOOP HYDRANT 5040 LAND ALTERING 5060 LANDSCAPE IRRIGATION 5230 PAVING AND RESTORE 0101 PRE -CONSTRUCTION 1600 PUBLIC WORKS FINAL 5160 PUBLIC WORKS PRE -CON 5090 STORM DRAINAGE 5110 WATER MAIN EXT 0 CITY OF TUKWILA Community Development Department Public Works Department Permit Center 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 http://www.TulcwilaWA.gov qeo SITE LOCATION WO O Fo6 f d6 0 Building Permit No. 01 %t -S Project No. Date Application Expires: 1 7 Date Application Accepted: (For office use only) CONSTRUCTION PERMIT APPLICATION Applications and plans must be complete in order to be accepted for plan review. Applications will not be accepted through the mail or by fax. **Please Print** Site Address: 10500 West Marginal Way Place So. King Co Assessor's Tax No.: 0423049150 Suite Number: Boeing Floor: Field Tenant Name: The Boeing Company PROPERTY OWNER ^Name: The Boeing Company - John S. Murdoch Address: P.O. Box 3707 M/C 46-88 City: Seattle State: WA Zip: 98124 CONTACT PERSON — person receiving all project communication Name: John S. Murdoch - The Boeing Company Address: P.O. Box 3707 M/C 46-88 City: Seattle State: WA Zip: 98124 Phone: (253) 740-0214 Fax: Email: john.s.murdoch@boeing.com GENERAL CONTRACTOR INFORMATION Company Name: The Boeing Company Address: P.O. Box 3707 M/C 46-88 City: Seattle State: WA Zip: 98124 Phone: (253) 740-0214 Fax: Contr Reg No.: BOEINC*294ML Exp Date: 01/18/2019 Tukwila Business License No.: H:\Applications\Fo ns -Applications On Line \2011 Applications\Permit Application Revised - 8-9-11.docx Revised: August 2011 bh New Tenant: ❑ Yes ®..No ARCHITECT OF RECORD Name: The Boeing Company - John S. Murdoch Company Name: Coffman Engineers City: Seattle State: WA Zip: 98124 Architect Name: Emery S. Ojala Address: 1601 5th Ave. Suite 900 City: Seattle State: WA Zip: 98101 Phone: (206) 623-0717 Fax: Email: ojala@coffinan@ ENGINEER OF RECORD Name: The Boeing Company - John S. Murdoch Company Name: Coffman Engineers City: Seattle State: WA Zip: 98124 Engineer Name: Allison L. Hazen Address: 1601 5th Ave. Suite 900 City: Seattle State: WA Zip: 98101 Phone: (206) 623-0717 Fax: Email: hazen@coffinan.com LENDER/BOND ISSUED (required for projects $5,000 or greater per RCW 19.27.095) Name: The Boeing Company - John S. Murdoch Address: P.O. Box 3707 M/C 46-88 City: Seattle State: WA Zip: 98124 Page 1 of 4 BUILDING PERMIT INFORMATION — 206-431-3670 Valuation of Project (contractor's bid price): $ 886,800 Existing Building Valuation: $ 3,500,000 Describe the scope of work (please provide detailed information): Demo of a 33,700 Building Footprint (2) Story Boeing's Fitness Center. Will there be new rack storage? ❑ Yes ®.. No If yes, a separate permit and plan submittal will be required. Provide All Building Areas in Square Footage Below PLANNING DIVISION: Single family building footprint (area of the foundation of all structures, plus any decks over 18 inches and overhangs greater than 18 inches) *For an Accessory dwelling, provide the following: Lot Area (sq ft): Floor area of principal dwelling: Floor area of accessory dwelling: *Provide documentation that shows that the principal owner lives in one of the dwellings as his or her primary residence. Number of Parking Stalls Provided: Standard: Compact: Handicap:_ Will there be a change in use? ❑ Yes m No If "yes", explain: FIRE PROTECTION/HAZARDOUS MATERIALS: ® Sprinklers 0 Automatic Fire Alarm ❑ None 0 Other (specify) Will there be storage or use of flammable, combustible or hazardous materials in the building? 0 Yes No If "yes', attach list of materials and storage locations on a separate 8-1/2 " x 11" paper including quantities and Material Safety Data Sheets. SEPTIC SYSTEM 0 On-site Septic System — For on-site septic system, provide 2 copies of a current septic design approved by King County Health Department. H:\Applications\Fomes-Applications On Lica\2011 Applications\Permit Application Revised - 8.9.1 l.docs Revised: August 2011 bh Page 2 of 4 Existing Interior Remodel Addition to Existing Structure New Type of Construction per IBC Type of Occupancy per IBC 1st Floor 33,700 II B 2"" Floor 33,700 II B 3r" Floor Floors thru Basement Accessory Structure* Attached Garage Detached Garage Attached Carport Detached Carport Covered Deck Uncovered Deck PLANNING DIVISION: Single family building footprint (area of the foundation of all structures, plus any decks over 18 inches and overhangs greater than 18 inches) *For an Accessory dwelling, provide the following: Lot Area (sq ft): Floor area of principal dwelling: Floor area of accessory dwelling: *Provide documentation that shows that the principal owner lives in one of the dwellings as his or her primary residence. Number of Parking Stalls Provided: Standard: Compact: Handicap:_ Will there be a change in use? ❑ Yes m No If "yes", explain: FIRE PROTECTION/HAZARDOUS MATERIALS: ® Sprinklers 0 Automatic Fire Alarm ❑ None 0 Other (specify) Will there be storage or use of flammable, combustible or hazardous materials in the building? 0 Yes No If "yes', attach list of materials and storage locations on a separate 8-1/2 " x 11" paper including quantities and Material Safety Data Sheets. SEPTIC SYSTEM 0 On-site Septic System — For on-site septic system, provide 2 copies of a current septic design approved by King County Health Department. H:\Applications\Fomes-Applications On Lica\2011 Applications\Permit Application Revised - 8.9.1 l.docs Revised: August 2011 bh Page 2 of 4 PUBLIC WORKS PERMIT INFORMATION — 206-433-0179 Scope of Work (please provide detailed information): D.N.A. Call before you Dig: 811 Please refer to Public Works Bulletin #1 for fees and estimate sheet. Water District ❑ ...Tukwila ❑ ...Water District #125 0 ...Water Availability Provided 0 .. Highline ❑ .. Renton Sewer District 0 ...Tukwila ❑...Valley View 0 .. Renton ❑ .. Seattle ❑ ...Sewer Use Certificate 0...Sewer Availability Provided Septic System: 0 On-site Septic System — For on-site septic system, provide 2 copies of a current septic design approved by King County Health Department. Submitted with Application (mark boxes which apply): 0 ...Civil Plans (Maximum Paper Size — 22" x 34") 0 ...Technical Information Report (Storm Drainage) ❑ ...Bond 0 .. Insurance 0 .. Easement(s) Proposed Activities (mark boxes that apply): ❑ ...Right-of-way Use - Nonprofit for less than 72 hours 0 ...Right-of-way Use - No Disturbance ❑ ...Construction/Excavation/Fill - Right-of-way 0 Non Right-of-way ❑ 0 ...Total Cut cubic yards ❑ ...Total Fill cubic yards 0 ...Sanitary Side Sewer 0 ...Cap or Remove Utilities ❑ ...Frontage Improvements ❑ ...Traffic Control 0 ...Backflow Prevention - Fire Protection Irrigation Domestic Water ❑ .. Geotechnical Report 0 .. Maintenance Agreement(s) ❑ ... Traffic Impact Analysis ❑ ...Hold Harmless — (SAO) ❑ ...Hold Harmless — (ROW) 0 .. Right-of-way Use - Profit for less than 72 hours 0 .. Right-of-way Use — Potential Disturbance ❑ .. Work in Flood Zone 0 .. Storm Drainage 0 .. Abandon Septic Tank ❑ .. Curb Cut 0 .. Pavement Cut 0 .. Looped Fire Line 0 .. Grease Interceptor ❑ .. Channelization ❑ .. Trench Excavation 0 .. Utility Undergrounding ❑ ...Permanent Water Meter Size... WO # ❑ ...Temporary Water Meter Size .. WO # ❑ ...Water Only Meter Size WO # ❑...Deduct Water Meter Size ❑ ... Sewer Main Extension Public 0 Private 0 ❑ ...Water Main Extension Public 0 Private 0 FINANCE INFORMATION Fire Line Size at Property Line Number of Public Fire Hydrant(s) 0 ...Water 0 ...Sewer ❑ ...Sewage Treatment Monthly Service Billing to: Name: Day Telephone: Mailing Address: Water Meter Refund/Billing: Name: Mailing Address: City State Zip Day Telephone: City State Zip H:\Applications\Forms-Applications On Line \2011 Applications\Permit Application Revised - 8.9-11.docx Revised: August 2011 bh Page 3 of 4 PERMIT APPLICATION NOTES — Value of Construction — In all cases, a value of construction amount should be entered by the applicant. This figure will be reviewed and is subject to possible revision by the Permit Center to comply with current fee schedules. Expiration of Plan Review — Applications for which no permit is issued within 180 days following the date of application shall expire by limitation. The Building Official may grant one or more extensions of time for additional periods not exceeding 90 days each. The extension shall be requested in writing and justifiable cause demonstrated. Section 105.3.2 International Building Code (current edition). I HEREBY CERTIFY THAT I HAVE READ AND EXAMINED THIS APPLICATION AND KNOW THE SAME TO BE TRUE UNDER PENALTY OF'ERJU'•Y BY THE LAWS OF THE STATE OF WASHINGTON, AND I AM AUTHORIZED TO APPLY FOR THIS PERMIT. BUILDING Signature: Print Name: ORIDiGENT: F p T OG l ig& ��% M Date: 05/25/2016 rdoch - The Boeing Company Mailing Address: P.O. Box 3707 M/C 46-88 Day Telephone: (253) 740-0214 H:Wpplications\Forns-Applications On Line120I I Applications\Pesmit Application Revised - 8-9-I1.docx Revised: August 2011 bh Seattle City WA 98124 State Zip Page 4 of 4 BULLETIN A2 Q TYPE C PERMIT FEE ESTIMATE PLAN REVIEW AND APPROVAL FEES DUE WITH APPLICATION PW may adjust estimated fees PROJECT NAME 9 -Off® be/Aa PtrI SSC ITE&RMIT # DG -0`43 If you do not provide contractor bids or an engineer's estimate with your permit application, Public Works will review the cost estimates for reasonableness and may adjust estimates. 1. APPLICATION BASE FEE 2. Enter total construction cost for each improvement Mobilization Erosion prevention Water/Sewer/Surface Water Road/Parking/Access A. Total Improvements 3. Calculate improvement -based fees: B. 2.5% of first $100,000 of A. C. 2.0% of amount over $100,000, but less D. 1.5% of amount over $200,000 of A. 4. TOTAL PLAN REVIEW FEE (B+C+D) 5. Enter total excavation volume Enter total fill volume / ?40 CORRECTI LTR#_.L categ - 1(). e?,0000 6i 00 3, . $250 (1) than $200,000 of A. cubic yards cubic yards (4) RECEIVED Use the following table to estimate the grading plan review fee. Use tCITY OF TUKWILA greater of the excavation and fill volumes. QUANTITY IN CUBIC YARDS RATE SEP 08 2 Up to 50 CY Free PERMIT CE 51 — 100 $23.50 101 — 1,000 $37.00 1,001 — 10,000 $49.25 R� 10,001 — 100,000 $49.25 for 1ST 10,000, PLUS $24.50 for each additional 10,000 or fraction thereof. 3N 100,001 — 200,000 $269.75 for 1ST 100,000, PLUS $13.25 for each additional 10,000 or fraction thereof. 200,001 or more $402.25 for 1ST 200,000, PLUS $7.25 for each additional 10,000 or fraction thereof. GRADING Plan Review Fees 17 TER TOTAL PLAN REVIEW FEE DUE WITH PERMIT APPLICATION2 (1+4+5) '. `� ) -' ./ The Plan Review and Approval fees cover TWO reviews: I) the first review associated with the submission of the application/plan and 2) a follow-up review associated with a correction letter. Each additional review, which is attributable to the Applicant's action or inaction shall be charged 25% of the Total Plan Review Fee. Approved 09.25.02 Last Revised 02/21/17 brboLr BULLETIN A2 l TYPE C PERMIT FEE ESTIMATE PLAN REVIEW AND APPROVAL FEES DUE WITH APPLICATION PW may adjust estimated fees 6. Permit Issuance/Inspection Fee (B+C+D) 7. Pavement Mitigation Fee $ (6) $ (7) The pavement mitigation fee compensates the City for the reduced life span due to removal of roadway surfaces. The fee is based on the total square feet of impacted pavement per lane and on the condition of the existing pavement. Use the following table and Bulletin 1B to estimate the p Approx. Remaining Years Pavement Overlay and Repair Rate (per SF of lane width) 20-15 (100%) $10.00 15-10 (75%) $7.50 10-7 (50%) $5.00 7-5 (33%) $3.30 5-2 (25%) $2.50 2-1 (10%) $1.00 0-1 $0.00 8. GRADING Permit Issuance/Inspection Fee Grading Permit Fees are calculated using the following table. Use r'the' greaterTdf the excavation and fill volumes from Item 5. $ (8) QUANTITY IN CUBIC YARDS RATE $ j1(t ' 50 or less $23.50 51-100 $37.00 101 — 1,000 $37.00 for 1st 100 CY plus $17.50 for each additional 100 or fraction thereof. 1,001 — 10,000 $194.50 for 1St 1000 CY plus $14.50 for each additional 1,000 or fraction thereof. 10,001 — 100,000 $325.00 for the 1st 10,000 CY plus $66.00 for each additional 10,000 or fraction thereof 100,001 or more $919.00 for 1st 100,000 CY plus $36.50 for each additional 10,000 or fraction thereof. 9. Technology Fee (5% of 6+8) Approved 09.25.02 Last Revised 02/21/17 2` (9) DESCRIPTIONS ACCOUNT QUANTITY PermitTRAK PAID $3,116.73 D17-0143 Address: 10500 W MARGINAL PL S BLDG 9-150 Apn: 0423049150 $3,116.73 Credit Card Fee $90.78 Credit Card Fee R000.369.908.00.00 0.00 $90.78 PUBLIC WORKS $2,949.25 BASE APPLICATION FEE R000.322.100.00.00 0.00 $250.00 PERMIT ISSUANCE/INSPECTION FEE R000.342.400.00.00 0.00 $1,325.00 CONSTRUCTION PLAN REVIEW R000.345.830.00.00 0.00 $1,325.00 GRADING PLAN REVIEW R000.345.830.00.00 0.00 $49.25 TECHNOLOGY FEE $76.70 TECHNOLOGY FEE TOTAL FEES PAID BY RECEIPT: R12402 R000.322.900.04.00 0.00 $76.70 $3,116.73 Date Paid: Friday, September 22, 2017 Paid By: JOHN S MURDOCH Pay Method: CREDIT CARD 063568 Printed: Friday, September 22, 2017 2:49 PM 1 of 1 CRWSYSTEMS Cash Register Receipt City of Tukwila DESCRIPTIONS PermitTRAK ACCOUNT QUANTITY PAID $13,605.72 D17-0143 Address: 10500 W MARGINAL PL S BLDG 9-150 Apn: 0423049150 $13,605.72 Credit Card Fee $396.28 Credit Card Fee I R000.369.908.00.00 0.00 $396.28 DEVELOPMENT $12,821.06 PERMIT FEE R000.322.100.00.00 0.00 $7,767.61 PLAN CHECK FEE R000.345.830.00.00 0.00 $5,048.95 WASHINGTON STATE SURCHARGE B640.237.114 0.00 $4.50 TECHNOLOGY FEE $388.38 TECHNOLOGY FEE TOTAL FEES PAID BY RECEIPT: R11569 R000.322.900.04.00 0.00 $388.38 .$13,605.72 Date Paid: Thursday, May 25, 2017 Paid By: JOHN S MURDOCH Pay Method: CREDIT CARD 018171 Printed: Thursday, May 25, 2017 10:27 AM 1 of 1 Cl?!SYSTEMS INSPECTION RECORD Retain a copy with permit INSPECTION NO. PERMIT NO. CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd.., #100, Tukwila: WA 98188 Permit Inspection Request Line (206) 438-9350 D'7-811/3 (206) 431-3670 Pro: N6- 9 -isoprmo Type of Inspection: -- p/m-z. Add ess: y�� 4 wr Mi�4G�IX/f '� Date Called: Special Instructions: D to Wanted: 38-13 a.m Requester: Phone No: NApproved per applicable codes. Corrections required prior to approval. COMMENTS: -Dern, /71-rprr inott- Inspector:3w Date:3_e P zo/ REINSPECTION FEE REQUIRED. Prior to next inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Q City of Tukwila Allan Ekberg, Mayor Department of Community Development - Jack Pace, Director MEMORANDUM September 15, 2017 To: John Murdoch, The Boeing Company FM Carol Lumb, Senior Plannet'j RE: Tree Replacement at Building 09-150 Thank you for working with us to resolve the tree replacement issue at the building 09-150 site. This memorandum follows up on our conversation on September 14, 2017 regarding the stand of trees on the building 09-150 site within the shoreline that were to be retained but unfortunately were removed without a permit when demolition of the building started prior to issuance of D17-0143. By my count on the aerial photo (attached), there were 40 trees within the shoreline that were removed. These are in addition to the 10 trees close to the building that were designated for removal once the demolition permit was issued. These trees also were removed prior to issuance of the demolition permit and were in the shoreline jurisdiction and subject to TMC 18.44.080 B. replacement requirements. The chart below identifies the number of replacement trees required by TMC 18.44.080, based on the size of the tree, the number of trees removed and the total number of replacement trees required. The tree sizes in the stand of trees had not been inventoried, however, you had a staff person provide an assessment of the sizes: 25 trees fell in the 8"-20" range and 15 were over 20" in diameter. Diameter of Tree Removed (measured at ht. of 4.5 ft. from ground) Number of Replacement Trees Required Per TMC 18.44.080 B. Number of trees Removed* Total Number of Replacement Trees Required 4-6 inches 3 2 6 Over 6-8 inches 4 1 4 Over 8-20 inches 6 31 186 Over 20 inches 8 16 128 Total Replacement Trees Required 324 (*See sheet C31R-DEM for sizes of trees adjacent to building that were marked for removal) The shoreline regulations provide two options for tree replacement in the shoreline - new trees can be planted in an appropriate location or payment may be made into the City's tree fund (TMC 18.44080 Tukwila City Hall • 6200 Southcenter Boulevard • Tukwila, WA 98188 • 206-433-1800 • Website: TukwilaWA.gov John Murdoch, Boeing Co. September 15, 2017 Page 2 B.6.). If payment into the City's tree fund is selected, the cost per tree is $124.00 each. I will attach the worksheet we have used to estimate the cost of replacement trees. This worksheet takes into account not only the cost of the purchase of a tree, but also site preparation, labor to install and maintenance for three years. If payment into the City's tree fund is the option selected, the amount due is $40,176. If the option of re -planting is selected we will need to identify appropriate locations for the 324 trees, as they should not be replanted in areas of the site that will be redeveloped. Prior to sign off by Planning on the demolition permit, we need to know how tree replacement will be addressed. If you have questions, I can be reached at 206-431-3661. Attachments CL 9/15/2017 9:38 AM H:\\Boeing\Bldg 09-150 Demolition\D17-0143 Tree Replement Memo Phone: 206-433-1800 • Email: Mayor@TukwilaWA.gov • Website: TukwilaWA.gov CHECK NO. 0 0 00 00 e110odea ems olo.d ^ '4008 uo sllelea E .- Uakt),- MCN mcm fano MNBor- Om' U . E ki J J a Z o V Q 0 `\v hi J Zvz¢N -J m V N zz s L") 0 t 0 C I0 V wJ x. W dCC Li - 00 v022542u' 0 CM Ina) LL co-10Cr MS I - NZ OD W CD • �'-- t( U CWu O� lD Lra mg�zdr o 7 4 f• a. i I-4 W O O CClCD •-- CJ CL L p N N- H O W H cO Q)( CO c=)F- <t +-, C1 N N- 'Q F- C . 0.1\ 6 F- CD CU.) CD CT O O CO p� VN F� CID 1D O H II] CT CDr�V ASN N L O CD O CO7 C CO U) ' U a +>,CD LL FC) N OFW- U CV CD C.�,- CN !_ N CT QU) P-4 t 3 s7 4(- Cl) .- C) www.tukwilawa.gov APPENDIX H COMPLETE SUMMARY of HAZARDOUS MATERIALS CORRECTION LTR# bci1oI3 14*DE .REVIEWED FOR COMPLIANCE APPROVED SEP 21 2017 City of Tufr w/f 11, AWING D,./f510.. RECEIVED CITY OF TUKWILA SEP 08 2017 PERMIT CENTER Jfl May 23, 2017 Mr. Micah Hodges The Boeing Company IN�N/�IL. INDUSTRIAL HYGIENE SERVICES Subject: PHASE I & II Complete Hazardous Building Material Summary Laboratory I Management I Training For Asbestos, RCRA-8 Paint, & TCLP, Mercury, and PCB's www.NVU.ABS.com @ "Oxbow Activity Center — Building 09-150 —10500 W. Marginal PI. S., Seattle, WA 98188 NVL PROJECT # 2017-0062-1 — Addendum 1 Dear Mr. Hodges, For yours and the contractors' convenience, we have summarized a table of the regulated building materials which were identified during Phase I & II below: Regulated Material Type Material Location Friable Quantity Asbestos Built up roofing & flashing Roof No 33,700 SF Caulking Metal Panels No 13, Panels 13,000 LF PACM Flange gasket Floor 1, Mechanical Yes 4 units Electrical panels Floor 1 and Floor 2 - 26 units Fire Doors Floor 1 and Floor 2 - 42 units I. RCRA-8 Yellow paint on drywall Floor 2, Common Area - - White/creme paint on metal Floor 2, Meeting Room 201 _ _ White paint on drywall Floor 1 & 2, Gym - - White paint on metal Floor 1 & 2, Gym - - White paint on metal siding Exterior siding - - White paint on metal Floor 1 & 2, Gym HVAC - - TCLP RCRA-8 Building 09-150 All metals below regulatory threshold PCBs Fluorescent light ballasts (FLB) See tables 1.1 —1.3 on previous report 396 Assumed PCB FLB ti -''�'�"` �' ' Weal ,,: 4 Fluorescent tubes (FLT) See tables 1.1 —1.3 on previous report 831 FLT Thermostat See spec drawings 11 Thermostats 4 A J 14 :0 161nrr: ' Page 1 of 1 Phone: 206 547.0100 I Fax: 206 634.1936 I Toll Free: 1.888.NVL.LABS (685.5227) 4708 Aurora Avenue North I Seattle, WA 98103-6516 City of Tukwila t)( (13 Allan Ekberg, Mayor Department of Community Development- Jack Pace, Director NOTICE OF DECISION DATED JUNE 21, 2017 TO: John Murdoch, Permit Administrator, The Boeing Company King County Assessor, Accounting Division State Department of Ecology, SEPA Division This letter serves as a notice of decision that the application for planned action regarding the demolition of a structure and removal of impervious surfaces and some trees and vegetation at the Boeing Activity Center is issued pursuant to TMC 21.04.156. REVIEWED FOR CODE COMPLIANCE APPROVED PROJECT BACKGROUND FILE NUMBER: E17-0004 APPLICANT: John Murdoch, The Boeing Company City of Tukwila tiuMatiagalye1211 SEP 21 2017 REQUEST: Determine that the proposed demolition of a s Boeing Activity Center) and removal of all impervious surfaces immediately related to the structure and the removal of some trees and vegetation falls under the Manufacturing/Industrial Center -Heavy (MIC/H) planned action criteria and therefore no additional SEPA review is required. CORRECTION LTR#. I Location: PROJECT DESCRIPTION: RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER DETERMINATION: 10500 West Marginal Way South (tax account number 0423049150) The Boeing Company proposes to demolish building 9-150, a 52,500 sq. ft. structure currently used as an activity center/gym, remove related impervious surfaces for the area immediately around the gym, and remove a number of trees and formal landscaping associated with the structure. Most of the vegetation to be removed lies outside the shoreline jurisdiction. Ten trees within the 200 -foot shoreline jurisdiction will also be removed — these trees are in close proximity to the building; the applicant will be required to replace these trees on-site, based on the replacement ratios found in TMC 18.44.080 B. 4. or pay into the City's tree replacement fund. The project falls under the planned action guidelines. The decision is final: with no. administrative appeal! Page 1 of 1 1� 0 1 4 3 Tukwila City Hall • 6200 Southcenter Boulevard • Tukwila, WA 98188 • 206-433-1800 • Website: TbkwilaWA.gov n^ , E17-0004 Boeing Building 9-150 Demolition June 21, 2017 Page 2 of 2 ZONING/COMPREHENSIVE PLAN DESIGNATION: MIC/H Project materials including the application, any staff reports, and other studies related to the permit are available for inspection at the Tukwila Department of Community Development, 6300 Southcenter Blvd., Suite 100, Tukwila, Washington, Monday through Friday between 8:30 a.m. and 5:00 p.m. The project planner is Carol Lumb who may be contacted at 206431-3661 for further information. Property owners affected by this decision may request a change in valuation for property tax purposes notwithstanding any program of revaluation. ‘41t, 41,x1-7 Jack '' e, Director of Community Development Date CL `H:11E17-0004 Boeing Activity Ctr Demolition\NOD 6/20/2017 4:28 PM Phone: 206-433-1800 • Email: Mayor@TukwilaWA.gov • Website: TukwilaWA.gov City of Tukwila Allan Ekberg, Mayor Deportment of Community Development - Jack Pace, Director MEMORANDUM June 20, 2017 To: Jack Pace, DCD Director From: Carol Lumb, Senior Planner Re: Project File No. E17-0004: Demolition of Building 9 -150 -Boeing Employee Activity Center Project Description: Boeing is discontinuing the use of a leased building that has been used as an employee activity center - i.e. a fitness center and gym. The lease requires that upon termination, the site be returned to its original, undeveloped character. To comply with the terms of the lease, the project proposal will demolish a two- story, 52,500 square foot building, remove associated paved pathways, utilities, and vegetation, including trees. The demolition project area is part of a much larger site which is used primarily for parking not associated with the activity center. The majority of the building lies within the two hundred foot shoreline jurisdiction - a shoreline permit is not required for the demolition of a building. Proponent: John Murdoch, Permit Administrator, The Boeing Company Location: 10500 West Marginal Way South (parcel #042304-9150) Lead Agency: City of Tukwila, Department of Community Development Challenges to Document: None Other Agencies of Jurisdiction: Washington State Department of Ecology Zoning: MIC/H Comprehensive Plan Designation: MIC/H Recommendation: The proposal fits within the scope of a SEPA Planned Action according to the criteria set forth in TMC 21.04.152. The proposal is recommended for approval as a SEPA Planned Action. I. BACKGROUND/PROPOSAL Tukwila's Manufacturing and Industrial Center (MIC) is one of the Puget Sound region's major industrial centers. Industrial development over most of the sub -area was evaluated in multi -site environmental review. In 1992, a programmatic environmental impact statement (EIS) was Tukwila City Hall • 6200 Southcenter Boulevard • Tukwila, WA 98188 • 206-433-1800 • Website: TukwilaWA.gov Jack Pace, DCD Director E17-0004, Oxbow Fitness Center Demolition June 20, 2017 Page 2 prepared for the Duwamish Corridor master plan, a proposal to redevelop Boeing properties in the MIC over a 10 -year period. In 1998, sub -area plan/EIS updates extended the previous analysis of the corridor's Boeing properties (about 650 acres) to the entire MIC sub -area (about 1,370 acres). As part of this Planned Action review for the current proposal, the impacts of the current proposal are compared to the 1998 Integrated Growth Management Act Implementation Plan and Final Environmental Impact Statement to ensure that all impacts have been mitigated. The current proposal is to demolish a 52,500 sq. ft. structure, the 9-150 building, located at 10500 West Marginal Way South. The building has been used as a fitness center for Boeing employees. The site is leased and the lease is being terminated. As part of the lease agreement, the applicant is required to restore the site to its original condition. The project will demolish the existing building, remove pathways and other impervious surfaces, remove utilities, and vegetation outside the shoreline jurisdiction and ten trees within the shoreline jurisdiction that are close to the building. The building to be demolished is within the 200 -foot shoreline jurisdiction of the Duwamish River. The subject site is zoned Manufacturing Industrial Center/Heavy (MIC/H). II. DECISION CRITERIA This proposal was identified as a potential Planned Action because of its location within the subarea subject to the Tukwila Manufacturing/Industrial Center Integrated GMA Implementation Plan and Environmental Impact Statement. The determination of whether a project fits the Planned Action criteria is divided into two phases. Each phase is described below, including a response that explains how the current proposal meets the criteria. 1) In the first phase, a determination is made whether the project satisfies all of the following characteristics (contained in TMC 21.04.152 Planned Actions Identified): 1. The action is a "permitted use" located within the MIC/L (TMC 18.36.020) and MIC/H (TMC 18.38.020) zones and/or is an accessory use (TMC 18.36.030 and 18.38.030 respectively). 2. The action is: a. not an "essential public facility" as defined in RCW 36.70.200 and TMC 18.06.270, b. not a conditional or unclassified use, in the respective MIC/L or MIC/H zones, c. not a development, any portion of which includes shoreline modifications waterward of the ordinary high water mark, d. not a development associated with 16th Avenue Bridge construction activities. Response:, The proposal for this site is to demolitish an existing structure, which is permitted in the underlying zoning. Additionally, the project is consistent with items a -d HMBoeing\E17-00041Fitness Center Demo Staff Rpt. Phone: 206-433-1800 • Email: Mayor@TukwilaWA.gov • Website: TukwilaWA.gov Jack Pace, DCD Director E17-0004, Oxbow Fitness Center Demolition June 20, 2017 Page 3 under number 2 above. There is no current proposed use for the site once the existing building is demolished. 2) Once the project has met the initial test to qualify as a planned action, it must then show the following: A. Will all of the impacts of the proposal be mitigated by the time the project is complete? Please document all mitigation measures, using attachments if necessary. Response: Based on the answers provided in the Endangered Species Act (ESA) Screening Checklist, the project does not constitute a "take" under ESA. The following provides clarification for items answered "yes" in the ESA Screening Checklist. Compliance with existing codes will mitigate any impacts related to grading, erosion control and vegetation removal. (1) Grading and clearing: The project includes grading and clearing associated with demolition of the fitness center building, including removal of pavement, utilities, and vegetation. The checklist states that 60 trees, planted at the time the building was constructed in 1987, will be removed along with the building. These trees lie both within and outside the shoreline jurisdiction. The trees that existed at the time the building was constructed will be protected and remain. The Shoreline Master program does not permit the removal of trees unless they are defective or are being removed as part of a re -development proposal. The project plans have been revised to retain most of the trees in the shoreline jurisdiction planted as part of the activity center development. Trees immediately next to the building will be removed — replacement will be required on-site or payment made into the City's tree replacement fund as part of review of the demolition permit. (2) Vegetation: As noted above, the original proposal was to remove all vegetation planted as part of the site development, including approximately 60 trees that fall within the shoreline jurisdiction. The proposal has been modified to retain most of the trees — ten trees that are next to the building will be removed. The applicant will be required to replace these trees, using the tree ratios found in TMC 18.44.080 B.4., as part of the demolition permit. B. Is the proposal consistent with the applicable sections of the Tukwila Comprehensive Plan? TMC 21.04.154 requires that the Comprehensive Plan policies that are to be reviewed are those identified in the "Integrated GMA Implementation Plan and Environmental Impact Statement for the Tukwila Manufacturing/Industrial Center." Specifically, the proposed project meets the following goals and policies: H:\\Boeing1E17-0004\Fitness Center Demo Staff Rpt. Phone: 206-433-1800 • Email: Mayor@TukwilaWA.gov • Website: TukwilaWA.gov Jack Pace, DCD Director E17-0004, Oxbow Fitness Center Demolition June 20, 2017 Page 4 Goal 11.1: Support the existing industrial activities in the MIC and development of new industrial activity in order to maximize the employment and economic benefits to the people to Tukwila in the region, while minimizing impacts on residential neighborhoods. Policy 11.1.1: Support the efforts of existing industries to expand and new industrial businesses to develop in the Manufacturing/Industrial Center by providing them with economic data, information on available development sites, help in understanding and getting through the permit processes, and other appropriate assistance. Policy 11.1.5: Allow uses that are commonly associated with manufacturing and industry, including those directly supporting such activity, such as offices and laboratories, while prohibiting unrelated uses. The demolition of the fitness center will provide a new development opportunity for a building or buildings with a use that is permitted in the Manufacturing Industrial Center/Heavy district. III. CONCLUSION The current proposal to demolish the 9-150 building is consistent with the criteria for approval as a Planned Action. Future development to replace the building is unknown at this time. The proposed demolition is consistent with Tukwila's Comprehensive Plan, and all impacts associated with the current proposal will be mitigated. Prepared by: Carol Lumb, Senior Planner Date: June 20, 2017 H:11Eoeing1E17-00041Ftness Center Demo Staff Rpt. Phone: 206-433-1800 • Email: Mayor@TukwilaWA.gov • Website: TukwilaWA.gov OUTSIDE INSIDE REPAIRS DEPOSIT $ PHONE: 206-242-3236 SIDE SEWER PERMIT VALLEY VIEW SEWER DISTRICT 3460 South 148th Street, Suite 100 • Seattle, Washington £X(DIE) PERMIT 7553 EASEMENT No. RECEIPT No. DATE 1 �r OWNER`�-'., :;' ' CONTRACTOR: i..' t �" �..,.._. y HOUSE ADDRESS <, _BASEMENT: YES NAME SUB -DIVISION ,LO▪ T No. NO BLK. No. Permit has been granted 7/x0.01? Expiration Date 7/ Z/ Approved by Permits not valid unless signed by district representative. Inspector's Report REVIEWED FOR CODE COMPLIANCE APPROVED R 0 Test Report WATER 0 SEP 21 2017 BUILDING DIVISION k- - 2_ -2.0 Roof, Downspouts, Building Footing Drains, any Ground Water Drains, etc., are not allowed to be hooked into the sewer under this permit. ALL PLUMBING OUTLETS WILL BE CONNECTED TO THE SEWER. This permit is granted subject to the conditions set forth on the District's Application For Permit and is subject to all stipulations of the District's Side Sewer Resolution as amended and which are by this reference incorporated herein as though set forth in full. Inspector "CAUTION" NO BUILDING ON SEWER EASEMENTS RECEIVED CALL FOR INSPECTION AT 242-3236 CITY OF TUKWILA • DEWATER DITCH BEFORE INSPECTION • DISTRICT INSPECTION BEFORE BACKFILL • TEST SIDE SEWER BEFORE AND DURING INSPECTION SEP 0 8 2017 PERMIT CENTER SEPTIC TANK The King County Health Department Uniform Plumbing Code requires septic tanks to be completely pumped and filled with earth, sand, gravel, concrete or other approved material. SAFETY The Contractor shall comply with the Washington Industrial Safety and Health Act (RAW 49.17) and Safety and Health Standards such as Safety Standards for Construction Work (Chapter 296-155 WAC), General Safety and Health Standards (Chapter 296-24 WAC), General Occupational Health Standards (Chapter 296-22 WAC) and any other appropriate safety and health codes. T j 0 0 n elder sociates ex. c6) TECHNICAL MEMORANDUM Date: June 2, 2017 To: Michel Sotura, PE, LEED AP Kevin Wang, PE, LEED AP Project No.: Company: 1671618 Coffman Engineers From: M. Birkan Bayrak, PhD, PE and James G. Johnson, LG, LEG cc: Allison Hazen, PE and Gwendolyn M. Email: bbavrak(c�golder.corRECEIVED McHugh, PE CITY OF TUKWILA RE: FINAL GEOTECHNICAL RECOMMENDATIONS SUBMITTAL FOR DEMOLITION OF BOEING BUILDING 9-150 PROJECT SP 0 8 2017 DEVELOPMENT CENTER SITE, BUILDING 9-150 10500 W MARGINAL WAY PLACE SOUTH TUKWILA, WASHINGTON 98108 PERMIT CENTER This technical memorandum summarizes Golder Associates Inc.'s (Golder) geotechnical services to Coffman Engineers (Coffman) and The Boeing Company (Boeing) for the proposed demolition project at the 9-150 Building at the Boeing Development Center (DC) site (Site). This technic D FOR been prepared based on our discussions with representatives of Coffman; a geotec . Ni WR report prepared for the Site; foundation plan and details provided by Coffman; and our perien a_)doD projects. 1.0 PROJECT BACKGROUND AND UNDERSTANDING The Boeing Employees Activity Center (i.e., 9-150 Building) is located in the southern Parking Lot property on the west side of the Duwamish Waterway at the Boeing DC in SEP 21 2017 ortiolcityie Ha VISION as shown in the Vicinity Map (Figure 1). The 9-150 Building currently serves as a recreational facility (Boeing Oxbow Activity Center). The project boundary limits are shown in Figure 2. The existing building was constructed between 1988 and 1989 and is supported on a pile foundation system consisting of 16 -inch -diameter, 26 -foot -long (from pile cap) augered cast -in-place (ACIP) piles. The piles contain a reinforcement/rebar cage 22 -foot -long (full length reinforcement for tension piles). Based on the available foundation plan provided to us by Coffman, there are 191 ACIP piles supporting the 9-150 Building as shown in Attachment 1 (Sheet S-1). Foundation details (e.g., six different pile cap schedule with elevation, thickness, reinforcement information, and elevation pit and shaft information) are provided in Attachment 2 (Sheet S-2) and Attachment 3 (Sheet S-19). We understand that Boeing is tasked with demolishing the 9-150 Building and restoring the property to its "original condition" as part of its initial agreement with the property owner. Part of this demolition was removing the existing ACIP piles. In the beginning of the project, Golder was tasked to provide geotechnical services to support the removal of the 9-150 Building pile foundation system and return the Site to "original 1671618-tm-bldg 9-150 demolition-rev1-2017-06-01.docx CC,OO, RL71;1 Golder Associates Inc. 18300 NE Union Hill Road, Suite 200 Redmond, WA 98052 USA Tel: (425) 883-0777 Fax: (425) 882-5498 www.golder.coni T �R # Golder Associates: Operations in Africa, Asia, Australasia, Europe, North America and South America s.1 I-l'I'�' Golder, Golder Associates and the GA globe design are trademarks of Golder Associates Corporation Michel Sotura and Kevin Wang June 2, 2017 Coffman Engineers 2 1671618 condition" from a geotechnical standpoint. Based on this original scope of work dated January 5, 2017, Golder prepared a draft technical memorandum dated March 16, 2017 (Golder 2017) for the proposed pile removal project. Subsequently, Boeing and the property owner had discussions on the disposition of the piles after demolition of the building and the property owner posed some questions for the Boeing team to respond regarding leaving the piles in place. Coffman and Golder presented their opinion in a technical memorandum (Coffman and Golder, 2017a) dated April 7, 2017 responding to the property owners' questions. Coffman and Golder's (2017a) technical memorandum is provided in Attachment 4 in this document for reference. After the discussions between Boeing and the property owner, Boeing decided to abandon the existing ACIP piles supporting the 9-150 Building in the ground. As part of this later demolition plan, we understand that the piles would be cut at depth which will be discussed subsequently in this technical memorandum. 2.0 SCOPE OF SERVICES Coffman originally retained Golder to provide geotechnical services to support the demolition of the 9-150 Building pile foundation system for pile removal and mitigation option recommendations. However, due to the changes in the demolition plans as discussed in the previous section, Golder's original scope of services have been revised. Golder's revised scope or services were provided in e-mail correspondences and phone conversations between Coffman and Golder on May 23 through 25, 2017 (Coffman and Golder 2017b, 2017c) and are listed below: ® Provide recommendations regarding the depth of sever point at the pile locations M Provide structural fill recommendations ▪ Provide temporary slope recommendations • Prepare a technical memorandum summarizing Golder's recommendations for Coffman and Boeing 3.0 GENERAL SITE AND SUBSURFACE CONDITIONS Golder reviewed the geotechnical investigation report prepared by Converse Consultants (Converse 1985) in 1985 for the existing 9-150 Building.. Based on the Converse (1985) report, the site was relatively flat except for the bank along the Duwamish Waterway which had slopes up to about 20 feet high with inclinations of about 30 to 50 percent or steeper. At the time of explorations, the site was generally free of existing structures except for a jogging trail, related light standards around the perimeter and an existing radar tower at the north edge beyond the proposed building limits. Vegetation consisted of low to moderate weed growth, scattered brush and brambles to about 5 feet in height, and a few scattered trees up to maximum diameter and height of about 18 inches and 50 feet, respectively. Results of the explorations indicate the presence of very loose to medium dense, silt and sand alluvial deposits extending to the maximum depths explored of 82 feet in the building area. For the purpose of describing geotechnical engineering characteristics, these deposits were subdivided into four zones in the 1671618-tm-bldg 9-150 demolition-rev1-2017-06-01.docx lder Associates n LJ J L fl n Michel Sotura and Kevin Wang June 2, 2017 Coffman Engineers 3 1671618 Converse (1985) geotechnical report. Considering the depths of the ACIP piles in the available foundation plans, only the upper two zones are presented below for simplicity. Refer to Converse (1985) report for more details. IN Very loose to loose SILT and SAND: These soils were encountered in all explorations and extended generally from the ground surface to depths ranging from about 12 to 16 feet in the building area. • Medium dense SAND: These soils were encountered in all four explorations in the building area at depths below 12 to 16 feet and extended to depths ranging from approximately 38 to 44 feet. Based on the exploration log records presented in the Converse (1985) report, the ground surface elevation at the 9-150 Building location varied between elevation 11.0 and 13 feet (USGS MSL). It was also stated in the Converse (1985) report that it was anticipated that the grade of the building site would be raised 2 to 5 feet by placement of fill to establish the building slab -on -grade finish floor at elevation 15.0 feet MSL. Groundwater levels in two explorations in the building area were observed at depths of about 10 to 13 feet below the existing ground in 1985. Groundwater levels are likely to fluctuate as a result of seasonal variations and possibly due to the influence of tidal variations in the nearby Duwamish Waterway. 4.0 RECOMMENDATIONS This section summarizes Golder's recommendations regarding the proposed demolition of the 9-150 Building's foundation elements. 4.1 Depth of Foundation Removal and Pile Sever Point As part of the 9-150 Building's demolition, we understand that Boeing plans to remove all pile caps and grade and tie beams and remove the tops of the existing ACIP piles and leave most of the pile length in the ground. The tops of the piles will be removed to a nominal depth below the final site grades to avoid a surface hard -point developing. Our recommendations regarding the depth of sever point on the piles is as follows and is based on removing the piles to a depth that will not preclude future use of the property for uses such as a parking lot. The depth of sever point should be the deeper of the following two: M The bottom of the existing pile caps 5 feet below either the existing building "Finish Floor Elevation" or the "Final Grade" of the post demolition site — whichever is deeper We also understand that the bottom of the existing pile cap at the elevator pit location is deeper than the other pile caps at the site per structural sheets S-1, S-2, and S-19 (Attachments 1 through 3). A further recommendation is removal of the elevator pit pile caps and severing the elevator shaft (if present) at the 1671616-tm-bldg 9-150 demolition-rev1-2017-06-01.docx Golder Associates Michel Sotura and Kevin Wang June 2, 2017 Coffman Engineers 4 1671618 same elevation as the criteria for the building foundation piles. Therefore, a deeper excavation and sever point should be expected at the elevator pit location. Please note that the technique used to cut and remove the tops of the piles (and elevator shaft) is related to the Contractor's means and methods of construction and it is ultimately the responsibility of the Contractor. 4.2 Structural Fill The term "structural fill" refers to any materials used to backfill the excavated areas during the proposed demolition or any new fill placement to obtain the final grade at the Site. Golder's conclusions and recommendations concerning structural fill are presented in the following sections. 4.2.1 Materials Where needed, structural fill should be free of organic and inorganic debris and be capable of being compacted to the required specifications for application. Soils used for structural fill should generally not contain any organic matter or debris or any individual particles greater than 6 inches in diameter depending on use. Typical structural fill materials include clean sand and gravel; well -graded mixtures of sand and gravel (commonly called "gravel borrow" or "pit -run"); mixtures of silt, sand, and gravel; crushed rock; quarry spalls; and controlled -density fill (CDF). If the onsite soils do not meet the above criteria, or cannot be reworked to a suitable condition, we recommend using imported granular fill consisting of imported, clean, well -graded sand and gravel, such as "Gravel Borrow" per Washington State Department of Transportation (WSDOT): 9-03.14(1) (WSDOT 2016). Other fill materials may be used with approval of the engineer. If imported material is needed for filling during wet weather, the project specifications should include provisions for using imported, clean, well -graded sand and gravel, such as "Gravel Borrow" per WSDOT: 9-03.14, except that the percent passing the US No. 200 sieve should be no greater than 5%. 4.2.2 Placement and Compaction Structural fill used to obtain the final grade at the Site should be placed in horizontal lifts not exceeding 8 inches in loose thickness, and each lift should be thoroughly compacted with a mechanical compactor. All structural fill should be compacted to at least 90 percent of its maximum dry density, as determined using test method ASTM D 1557. 4.3 Temporary Slopes Safe temporary slopes are the responsibility of the contractor and should comply with all applicable Occupational Safety and Health Administration (OSHA) and Washington Industrial Safety and Health Act (WISHA) standards. Temporary, stable cut slopes less than 8 feet in height can generally be constructed using the following recommendations: 1671618-tm-bldg 9-150 demolition-rev1-2017-06-01.docx Golder Associates L. n n n �, F7 n i i �J Michel Sotura and Kevin Wang June 2, 2017 Coffman Engineers 5 1671618 Uncontrolled Fill and Native Alluvium — 1.5H:1V If temporary cuts encounter groundwater seepage, they should be sloped at 2H:1V or flatter to prevent significant caving or sloughing. Temporary cuts in the looser granular materials are expected to have some raveling at the cut face. Temporary cut slopes in granular soils may need to be laid back flatter than 1.5H:1 V if a change in material type or debris is encountered. In the event that groundwater seepage is encountered during excavation, the contractor must install temporary drainage measures to protect the cut face and prevent degradation of the excavation area until permanent drainage measures can be constructed (if needed). 5.0 CLOSING This technical memorandum has been prepared for the exclusive use of Coffman Engineers and The Boeing Company and their design team to provide geotechnical services for the subject project. Use of this technical memorandum by others or for another project is at the user's sole risk. We appreciate this continuing opportunity to be of service to you on this project. Please contact us if you have questions or if we can be of further assistance. Sincerely, GOLDER ASSOCIATES INC. M. Birkan =ayrak, PhD, PE James G. Johnson, LG, LEG Senior Project Geotechnical Engineer MBB/JGJ/tp List of Figures Figure 1 Vicinity Map Figure 2 Project Site Boundaries List of Attachments Attachment 1 Attachment 2 Attachment 3 Attachment 4 Principal and Senior Consultant Foundation Plan & General Notes (Sheet S-1) Foundation Details (Sheet S-2) Masonry and Miscellaneous Details (Sheet S-19) Coffman and Golder (2017). Technical Memorandum. Response to Landlord Questions on Pile Removal. April 7. 1671618-tm-bldg 9-150 demolition-rev1-2017-06-01.docx Golder Associates Michel Sotura and Kevin Wang June 2, 2017 Coffman Engineers 6 1671618 6.0 REFERENCES ASTM International. Conshohocken, PA. Verification of latest standards at www.astm.org (accessed April 2015). Standard Test Method for: D1557 Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 feet-lbf/feet3 (2,700 kN-m/m3)) (2012). Coffman Engineers (Coffman) and Golder Associates Inc. (Golder). 2017a. Technical Memorandum. Response to Landlord Questions on Pile Removal. Submitted to The Boeing Company (Boeing). April 7. Coffman and Golder. 2017b. Personal communication (e-mail) between Allison Hazen (Senior Project Manager/Department Manager, Coffman) and James Johnson (Principal/Senior Consultant, Golder) and Birkan Bayrak (Senior Project engineer, Golder) regarding: revised scope of works, May 23 through May 25. Coffman and Golder. 2017c. Personal communication (phone conversation) between Allison Hazen (Senior Project Manager/Department Manager, Coffman) and James Johnson (Principal/Senior Consultant, Golder) regarding: revised scope of works, May 24. Converse Consultants (Converse). 1985. Report of Geotechnical Investigation, Proposed Boeing Employee Activity Center. Prepared for BE&C Engineers. July 23. Golder Associates Inc. (Golder). 2017. Draft Technical Memorandum. 50 Percent Design Submittal for Boeing 9-150 Pile Removal Project. Submitted to Coffman. March 16. Washington State Department of Transportation. (WSDOT). 2016. Standard Specifications for Road, Bridge, and Municipal Construction. Publication Number: M 41-10. 1671618-tm-bldg 9-150 demolition-rev1-2017-06-01.docx Golder Associates r FIGURES j n Kirkland QUEEN ANNE Bellevue Seattle WEST BaLEVtiE WEST SEATTLE COLUMBIA CT DEL RTtGE GEORGETOWN PROJECT SITE White Center ALL ENTOV'vN Bryn awr-Skyway Go gie Renton cuENT COFFMAN ENGINEERS Golder Associates 2017-03-16 PREPARED MOB DEs;c; D JGJ ppc.),JE:cT DEMOLITION OF BOEING BUILDING 9-150 PROJECT TITLE VICINITY MAP 1671618 REV KEURE 1 1 Notes: Project site boundaries are outlined in dashed red line. CLIENT COFFMAN ENGINEERS CONSULTANT el Golder Associates YYYY.MM-DD PROJECT DEMOLITION OF BOEING BUILDING 9-150 PROJECT 2017-03-16 TITLE PROJECT SITE BOUNDARIES PREPARED MBB DESIGNED REVIEWED JGJ APPROVED PROJECT NO 1671618 REV 1 FIGURE 2 iL14.LllK:a.2:.��M ATTACHMENTS L J 0 0 0 I PC -4T 0 0 0 0 0 0 0 90'-0' 20'-0" 20'-0" TYPICAL 10 R 30'-0" N ; PC -3T 6 is J 6 BAYS Q 20'r0" = 120'-0' I " CURB WALL 15" GR 1'-0" IBE BEAM PC -2 PC -27 PC -3T S-1 2 6" CURB PC -2 IS" NICE GRACE BEAM PC -3T 10'-7 1/4 15" MICE GRACE BEAM 1 '-7 1/4" END OF CURB 7'-9 1/2" 1 '-3 1/4" PC -3T PC -3T 6" CURB PC -6 10'-7 1/4 TYP. FOR Q GRIDS PILE CAT`S '1' THRU '7' END OF CURB PC -4T 3'-9 1/2" PC -4 TYP. FOR -4 d PC -4T S-1 S-2 S -I S-2 5" WIDE TIE BEAM TYP. U.O.N. S-1 S-18 S -11S-3 PC -6 15" WIDE GRADE BERM TYP. FOR PC -3 1 PC -:T PC -4 END OF CURB 6'-7 1 /4 6'-9 I/2" 18" NICE GRADE BEAM S 1.5 PC -3T PC -3T PC -3T PC -4 6'-9 1/2' END CF CUTS 6'-2 1/4" 3'-9 1/2' 10'-0 1/4" 1'-31/4 6'-7 1 /4 1 '-3 1 /4" S - 6'-2 1/4"-\10'-0 2/4� -2 3'-9 1/2"-/ i4 6'-2 1/4" NOTE: TOP OF PILE CAP ELEV. 9B'-6" U.O.N. TOP OF GRADE BERM ELEV. 9B'-6" TOP OF TIE BERM ELEV. 9B' -S" FOUNDATION PLAN 1 /I 6'=1 '-0 PC -3T GENERAL STRUCTURAL NOTES CCCES AND SPECIFICATIONS A. UNIFORM BUILDING CODE - 1982 EDITION B. AMERICAN NATIONAL STANDARDS INSTITUTE - ANSI A58.1 - 1992 C. ACI 318-83 BUILDING CODE REQUIREMENTS FDR REINFORCED CONCRETE 0. CR51 MANUAL DF STANDARD PRACTICE - LATEST EDITION E. RISC MANUAL OF STEEL CONSTRUCTION - EIGHTH EDITION F. ANS STRUCTURAL MELDING CODE - ANSI/AWS D1.1-84 DESIGN CRITERIA A. WIND LOAD - PER UNIFORM BUILDING CCOE 1. BASIC WIND SPEED = B0 MPH 2. EXPOSURE C B. SEISMIC - ZEE ND. 3 PER UNIFORM BUILDING CODE V = ZIKCSW - TOTAL LATERAL FORCE AT BASE BRACED FRRPE Z = 0.75 I = 1.0 K = 1.0 CS = 0.14 C. ROOF LIVE LOAD SNOW LOAD = 25 PSF PROVISION FOR SNON DRIFT HAS BEEN MADE PER ANSI 168.1-1982. D. FLOOR LIVE LORD (ND LIVE LORD REOICTICN APPLIED) 1. SLAB -ON -GRADE: 100 PSF CR 4.0 KIP CAPACITY FO4KLIFT 2. SECOND FLOOR: 100 PSF 1INCU.DES 20 PSF PARTITION D.L.) 3. STAIRS: 100 PSF 4. TRACK, 200 PSF E. SOILS DATA • 1. REFERENCE: "REPORT OF GEOTECHNICAL INVESTIGATION. PROPOSED BOEING EMPLOYEE ACTIVITY CENTER. BOEING DEVELOPMENT CENTER OXBOW PARKING LOT. SEATTLE. WASHINGTON" BY CONVERSE CONSULTANTS DATED JULY 23, 1985. 2. 16" DIAMETER RUGERCRST PILES SHALL EXTEND TO A TIP ELEVATION OF MINUS 15 FT RND PROVIDE 50 KIPS DOWNWARD AND 30 KIPS UPLIFT CAPACITY RESPECTIVELY. 3. HIO/ STRENGTH MORTAR MIX SHALL OEVELDP A MINIMUM F'C = 4000 PSI AT 28 DAYS AND SHALL HAVE A MINIMA CEMENT CONTENT OF 10 SACKS/CU YD. 4. SOIL ENGINEER SWILL MONITOR ALL FOUNDATION CONSTRUCTION AND EARTHWORK AND DETERMINE THAT ALL TIE DESIGN REQUIREMENTS ARE FLLFILLED. MATERIALS A. STRUCTURAL STEEL 1. STRUCTURAL SHAPES AND PLATES /ALL BE ASTM A36. STRUCTURAL TURES SHALL BE ASTM 8500 GR. B. 2. ALL FABRICATION AND ERECTICN SHALL COMPLY WITH RISC SPECIFICATIONS. 3. SHOP DRMWINCS OP ALL STRUCTURAL STEELIDTM SHALL BE SUBMITTED TO THE ENGINEER FOR APPROVAL PRIOR TO THE FABRICATION. 4. ALL STEEL HEWERS SHALL BE GIVEN ONE SHOP COAT DF APPROVED PAINT. SURFACES TO BE EPBEDOEO IN CONCRETE OR FIELD MELDED SHALL NOT BE PAINTED. S. SURFACE PREPARATION FDR PAINTING SHALL CONSIST BE RUST AND SCALE REMOVAL BY COMERCIAL SANDBLASTING. SURFACES TO BE PAINTED MKT BE DRY. FREE OF DIRT. OIL. CREASE. OR OTHER FOREIGN MATTER. 8. STRUCTURAL STEEL CCNNECTIONS 1. ALL BOLTS SHALL BE ASTM R325 UNLESS NOTED OTHERWISE. INSTALLATION SHALL BE IN ACCORDANCE WITH RISC SPECIFICATIONS. 2. ALL HIGH-STRENCTH BOLTS ASTM A325 SMALL BE FRICTIO-TYPE CGNECTIONS WITH LORD INDICATING WASHERS. ULESS OTHERWISE NOTED. 3. ALL ANCWR BOLTS SHALL BE ASTM R307 CR R36 IIKESS NOTED. 4. COLUMN ANCHOR BOLTS TO BE FURNISHED WITH TND HEAVY HEX NUTS AND TWO WASHERS EACH BOLT UNLESS NOTED OTHERWISE CN MANIACS. 5. ALL WELDING SHALL BE AS SPECIFIED CN THE IRRHINGS AND SHALL BE PERFORMED BY CERTIFIED IELSERS IN ACCORDANCE WITH ANS AND RISC SPECIFICATIONS. ELECTRCCES SHALL BE E-70 SERIES. C. CAST -IN-PLACE CONCRETE 1. CONCRETE FOUNDATIONS AND MALLS SHALL EEVELdP A MINIMUM FC' = 4000 PSI AT 28 DAYS. 2. CONCRETE FLOOR SLABS AND SLABS ON GRADE SILL DEVELOP A MINIMUM FC' = 4000 PSI AT 28 DAYS. 3. 1£5125 MIX FOR CONCRETE SHALL BE SU.BMITTED TO TIE ENGIPEETR FOR APPOVAL PRIOR TO CONSTRICTION. REINFORCING STEEL 1. CONCRETE REINFORCE/ENT 9RQ1 BE DETAILED. FABRICATED AND PLACED IN ACCORDANCE WITH ACI -318-83. 2. REINFORCING STEEL SMALL BE DEFORMED BILLET STEEL CONFOMING TO ASTM A615 GRADE 60. 3. IELOED WIRE FABRIC 944.1. COFORM TO ASTM A-185. ALL MIRE FABRIC 9411 BE SUPPLIED AND LAID IN FLAT DEETS AND SHALL BE CHAIRED TO PROPER POSITION IN SLAB. 4. MELDING CR TACK IELDIIC OP REIPFOOTPG BARS TO OTHER BARS OR PLATES. ANGLES. ETC.. IS PROHIBITED EXCEPT 1 ERE SPECIFICALLY APPROVED BY THE ENCINEER. 5. LAP ALL BARS: A MINIMUM OF 48 BAR DIASTERS 18E5S ODETMISE NOTED. D. 6. REINFORCING STEEL SHALL BE ACCURATELY PLACED AND ADEQUATELY SECURED IN POSITICN. LCCATICN OF REINFORCEMENT SHALL BE AS INDICATED CN THE DRAWINGS. THE FOLLOWING PROTECTION FOR REINFCRCEMENT SHALL BE PROVIDED: MIN COVER (IN) (A1 CAST AGAINST AND PERMANENTLY EXPOSED TO EARTH 3 IBI EXPOSED TO EARTH OR WEATHER .6 THROUGH .18 BARS 2 •5 BARS AVD SHALLER 1 -1 /2 IC) NOT EXPOSED TO IEATTER OR IN CONTACT WITH TIE GROUND SLABS. WALLS 3/4 E. PETAL DECK 1. 3' DEEP- - 18 GAUGE ROOF DECK 941L BE SECTION 21 AS MANUFACTLRED BY H.H. ROBERTSON COPANY OR 9PPROVED EARL. WITH GALVANIZED FINISH PER SPECIFICATIONS (BLESS OT/ERHISE NOTED. 2. 2"-(L-99-20 GAUGE FLOOR DECKING SHALL BE AS MAMFACTLED BY H.H. ROBERTSON COPANY CR APPROVED EQUAL. WITH GALVANIZED FINISH PER SPECIFICATIONS. 3. TIE GENERAL CONTRACTOR SHALL PROVIDE TIE MISCELLANEOUS STEEL FRAMING REQUIRED TO SUPPORT THE METAL DECK AT THE CCLUNS. BRACING, OR ANY OTHER INTERRUPTION. 4. TIE PETAL DECK SLPPLIER SHALL PROVIDE SWOP DRAWINGS DF TIE PROPOSED DECK LAYOUT. MUCH SHALL IIICLLOE TIE MISCELLANEOUS STEEL SUPPORTS. S. FLOOR DECK FASTENING: FASTEN TO ALL TRANSVERSE SUPPORT WITH 3/4" DIAMETER PEDDLE MELDS SPACED 12" ON CENTER ACROSS THE WIDTH OF TIE PANEL (MINIMUM 3 MELDS PER PANEL). I 1/2" TCP SEAM WELD SIDE LAPS OF ADJACENT PANELS RT 5'-0" ON CENTER. FASTEN EDGES TO PARALLEL SUPPORTS WITH 3/4" DIAMETER PUDDLE WELDS AT 12" CN CENTER. 6. ROOF EEOC FASTENING: FASTEN TO ALL TRANSVERw SUPPORTS WITH 3/4" DIASTER PIDDLE IELOS SPACED 6" ON CENTER ACROSS TIE WIDTH OP TIE PANEL (MINIMUM 7 WELDS PER 36" NICE PANEL). 1 1/2' TCP SEAM WELD SIDE LAPS OF ADJACENT PANELS AT 24" CN CENTER. FASTEN EDGES TO PARALLEL SLPPO7TS WITH 3/4" DIANETER PICCLE WELDS AT 12" ON CENTER. 7. 41111IMUM BEARING SHALL BE 3". F. GROUT NON-9PM( GROUT SWILL BE EP6ECO .636 BY MASTER BUILDERS. OR OTHER APPROVED EEDJPL. 6. OPEN NEB STEEL JOISTS SHALL BE OF SIZE AND TYPE AS NOTED D4 DIANINS AND TO COFEM TO STMDAIRD SPECIFICATICN AS ADOPTED BY STEEL JOIST INSTITUTE AND AMERICAN INSTITUTE OF STEEL COISTRLCTIOJ. ALL NECESSARY BRIDGING AND FASTENERS SHALL BE FUCNISNED WITH THE OPEN WEB STEEL JOISTS. H. MASONRY I. 1. CONCRETE PRSCRY LBITS SHALL BE HCLLO4 CORNETS UNITS COFOTMINC TO ASTM C90 GRADE NI WITH FC' - 1350 PSI. 2. MORTAR SHILL BE TYPE S WITH MINIMUM COMPRESSIVE STRENGTH CF 1800 PSI AT 28 DAYS. 3. MASONRY GROUT SHALL DEVELOP MINIMUM COPRESSIVE STRENGTH OF FC' = 2500 PSI AT 28 DAYS. 4. (ROUT S0.1D ALL CELLS CONTAINING REINFCRCIMC AND EPBECCEO ITEMS. 5. MINIMUM REINFORCING: .5 Q 4'-0' O.C. VERTICAL. .6 Q 3'-4" O.C. WORIZONTAL.IKE (11 .6 A SOD BEAMS. PROVIDE121 .5 VERTICAL AT 1YLL ENS INTEINTERSECTIONSND S ACORNERS. PROVIDE INFORCEZZI£NTS"TAT CORNERS RIGIN OUTSIDE FACE TO MATCH HORIZONTAL REp6 INTERSECTIONS. AT ALL WALL OPENINGS PROVIDE .5 X FULL WALL ]EIGHT VERTICLE EACH SIDE. .6 X OPENING WIDTH • 5'-0" NDRIZONTAL IN BOD BEAM SILL LACER AND IN LINTEL BERM OVER. PROVIDE DCIELS FROM CONCRETE FOUNDATION TO MATCH VERTICAL WALL REINFORCEMENT SIZE AND SPACING. PROJECT DOELS 2'-I ". LAP VERTICAL WALL REINFORCEMENT 30 DIAMETERS OR 2'-0" MINIMA. LAP BOND BEAM REINFORCEMENT 2'-6". STAGGER SPLICES 6'-0" MINIMUM. UNLESS OTHERWISE SHOWN ON DRAWINGS. 6. ULESS NOTED. VERTICAL REINFORCING IS TO BE AT CENTER OF MALL. 7. MASONRY TO BE CONSTRUCTED USING RUNNING NEC. BEIERAU 1. C(MRACTQN SHALL VERIFY ALL DI EPSIONS IN THE FIELD. ANY VARIATIONS FROM THE DRAWINGS SHALL BE BRORHT TO THE ]MEDIATE ATTENTION BE TWE ENGINEER. 2. ADEQUATE SHORING AND BRACING DF ALL STRUCTURAL HEWERS DURING CONSTRUCTION SHALL BE PROVIDED. ANY PROPOSED FIELD GANGES SHALL HAVE PRIOR APPROVAL FRCS TIE ENGINEER. 3. LEGATION AND SIZE OF EOUIPENT PADS. ANCHOR BOLTS. INSERTS. CR HANGERS FOR EQUIPMENT SHALL BE TAKEN FROM APPROVED VENDOR'S DRAWINGS AND CHECKED WITH THE EQUIPMENT SUPPLIED. 4. GENERAL CONTRACTOR 94,1 COCRDINRTE AD/OR PROVIDE ALL ADDITIONAL OPENINGS, INSERTS AND E16ECRENTS SHOW ON ARCHITECTURAL, MECHANICAL ANO ELECTRICAL DRAWINGS. INSPECTION AND TESTINC 1. PROVIDE INSPECTION ACCQOIPC in TWE REOUDREIENTS CF 1.6C SECTION 305 306. 2. FCR TESTING REOJIREPENTS FOR EAO4 MATERIAL, SEE TECHNICAL SPECIFICATIONS. REVISISI 2 A B 3 FIRST REVIEW ISSUE FOR PERMITS ISSN FOR CONSTRUCTION RECORD DRAWING I=f..U6 F0$. FRELINTILIP.KY RASIE.y BY 5PROO ANTE SR NEM 8.8.85 SR PK 9.20.85 SR PC TS A9'11 .B; SR .92 PKf Ts,W 2.21.8' se . * lo2B STY FVISIDI 4 )yJ5, Foe Co)TRAcroS, RE./IE.. 5 155UB Po#. STai:L 5w5 195,180 TOP', C,Q 4 TL)IJLT NON' 5J5 PLAN', ABTAIWBP POA ROLOAG P RLCOR0 DRAWING, BY SPEREX ANTE se '9c 10.2789 g244.4 PK II -)V.3$ 3L 411 7i 112,455 52 Li"r 11.25.159 O AUBURN, WA. 98002 THE BOE/RWM COMPANY 0 EVERETT, WA. 98201 ❑ KENT, WA. 98031 FACILITIES DEPARTMENT ❑ PORTLAND, OR. 97220 ❑ RENTON, WA. 98055 ■ SEATTLE, WA. 98124 ACCEPTABILITY • THIS EDSIM NO/OR SECIFICMI15 IS IPPRM*D NFRMED SY IftLCURD DRAWINU PRFIVIIX 41111 RL SW,11151 RLVlsla OI (ILL Q 11.53 89 M1L W E Hoag FOUNDATION PLAN A GENERAL NOTES S,EE1 1En NTL : P, ELL mu BUSING ErrLOYEEs Fr. r. Isar( comp, 5--1 s_ I"_ ARAN Ntw v. DEVELOP!"rLPlTAL CENTER lU, NV' 84021 P.M. KESTEN1l1K. J.T, SIMMMS .Ds1.M. SMILE.°CO.109-150-1000, 6 4., CAP CPEGOI. I1 tAGAP LDL ' -'�' l i I.1'•(0 21' 10 ^ l0 2'. ' GOL i'"47.1 ..-7'.0" , .L--_ _, 11 O'GAP ' �- I'•c'^ z d Zld �'�- i 1 \ Tyr rites I % .. - i _ -� :1'-/0,,� 4'-0' 4'•0" 1'•(0- 1:1_,/ 2 - 2 (CAPS VARY) ", -� _ _\ 3 /- T, 1111r___ -_I__ ) _ "�� f - V ._.. ` i ;mo -- i/ PILE- GAP � �_�. o _� I 4 \ l ) - \ / '� -I 1 (1(o" PIA, PILE) - - -4 o -- - * - tK Ao �`�� ° Nf IPC 0 IN' . '- " ,��,,,yyy 5-11GJ•2'. CoL . - LkA-Sr - N1 I \ I \ O Ni r o N �\ �i 79LC.ef•O ' tv REIIJF :6 G c -.1"Z} a \ .. 1 \ "� "� to /i ,�,, - -\ f . " I E n u riro�d,L2oI•c_ acT-eM (0 WA--f)jw/2" r I5o17oM (3\V/,YS)\wec0 a 9 -j -.r .-.-.._ / .._ 1 .. . / , �� =pI \ / \ / \ / l 4 _ _ _ I _� _ r 1-°P (s wA )\v/ , ' We G4h3i. - - �� _, I I ;D =� � I I FOUR PILE -GAP FIVE PILE- GAP 5IX PILE -GAP _+ -fN12E:E PILE - GAP TWO PILE - GAP PC -2 k 21(16." DIA, PILE 5)(\ PC-343T(Ifo" DIA.PI(,E5) PC- 444-I(1(0"PIA.PILE5)[� PC - J (1(0" PIAI PILES �G CO V2" . I'- 0" 5-1J5.2 1!2" • 1'- 011 - x _ I_ „ I/2 0 '- (1�'' DIA, PILES) 5-1 5-2 - I 5-1 5.2 12" = I 0" h'4 5.2 I/2�� I'• 0u 6-1 i52 PILE GAP 5GNEDULE FIN FLR 10011-0" O (+ 16.0'M5L) a' 1- 0"_..j ® GGY,E OF SLOPE MARK NO TOP EL TNIGKNE'/ REINFORCEMENT 1 _ .A ? �I P PEOGFAP 150LATION JOINT-- ��I �'� I {,OI1 _ R° 7( (/ 1 "V e P WA Y PC. I 9G''o' 2'-G° �! G EW 4- EI -'16'-(0°7 I TOP OF GUR45 101 G-1 r� TOP OP (3)1441- u (5) TQ 6 ' A �at. -Ox a'•af Gong B EA G 3 -, �I, �" 15a,AtiON G'3 / JOINT Pc- 2 98' G" 2'-l0° (y) (� LONG WAY gOtT U ('�) * G eiHORT WAY Eb?TU / - -- FIN FL EI. 41 L 10-01'(m h'I h'2 601 -4C -L1,043. WALL, Til(2)!l g 5E ARCA-ION/45 Flhl FL EL �L (GNAMF� EXGEPi \ I I FG' 2T 9a 'C0 u 2 -la u (G) Y l0 C� E\V, b (g) 5-� ) Ew. T 4" ' R n Gst I y9 b�8 9.115-2 POR FINISH r qq'_ 6 /6n i CA DG�RWAY (2) LON1 1 FIN FLA " tiL iAi-O `PG REINF FlJL - 4 12 _ (4 ` -3 98''G" 2' G" SEE DETAIL E. �_I k -" X / EW i OTAL) t itz� �'�2 C, �• • PILE GAP re. '3T 98'-G' 2 10' 5EE DETAIL �► - r -1.0 ,-, I .• . . c•, W» ;w ' i�' ii, r I - �' 1 / TOPO IIMI _ _ r` TOP OP ! rrv., "; .t BEAM ,o �:'�� o�� n II - PSEAM /.r A HRADE �i'0'�/ii FG -4 9�'-G u ().-13. f--.) Ew6 \APADE •4 L aL.ow-Go Xc/ I ELgO'.(o° n2BEEv 2' Cue-NoLv GL - J TUIGICENED • EA G-3 PG -4T 98' -Co r I_ n 2 !> (1)"b c E)►/ B.• 5UA1,6EE / (2) N 84oNT II (4)." 6, r 6v/.T (Cc)•CoA22'-O"VRi *9s °� �t4tlEh �re THRONl1H PG -5 98''6" 2'- 6" (7) `14 E\V \�/ TIES a" ac, (Tyr ALL PILES) ledpAU6C-RCAer (3) i� " F1L W. 41xbFSI) Ln lb" E J �q 6-2 5-'3 PILE GAP = (3).5 c.---) 6 (GTO AL) TYr © \9 TOTAL) �" 2'-10" (g�>� 1 l�EJ6 vAY '.�IToM _ N0TE • �� led Pi LE f (Co PG -lo 90' 6 r '-�NO'RT `NA.Y Di : COIJTiNU� GRnc� UPLIFT P7LE�; PG2T, - ;. ; I - ( P�TOMgM p� n �f,4 Ran -1F PG -3T PC.- 4.7 RFLE�/L.3 - f POR PiALANGE OF 1 r 4 TIE�7 Noms: - Tr: 19tP 6'477,.\=,v/L4,44,,,_1-`4" U) MWT-1iA 8(STRA.I6HT) 4 5,417 FULL Lgt-1 8TH OF -// u'//. GAU OUth, SEE SEE J 5- 5 �•OC `/. /� ,r " IG In I. F'ILfi CONG•To B.F. f'os 4G70• �1(IO SACKS cc C.C=J-16Jf/GU.Yb) 4-9'• F-1'JK T FLI"p SUMP W/MA../ATEER-GE-1FM KATIO =0.50, ADM IcTURG- ' "••• SIDE OF GAP WIIEI-I AEJD LIIJE J¢E 25a 103%9 PSE, ARE IJOT 40¢, PO2s. ILYJ,c-ra PILE- SECTION " 1-'�i -1 5.2 h-2 �j SECTION M U 1:_(�x ea. 2. PILrc GM GgJG TO fes• 4000 I. (.K SACcoNnD OF GFJr1CNi CnNT-JUOLIS, r PILE TIP ^ \ 11-.4-15-2 SECTION .K9 MW/u.Yv.) - %/ATM �i 6AL MAX. 1-m¢ ss.GEc uuLt� MI>< pBFjI J (5 A. O./ED &T' r -J II4 A.1 G.IT-T VVV I EL -15,0 (MSL) " _ 1_ " rj "- ' - " 1 - 1 O 1 15 2 5- f lh-2 vit.. i 0 i 5-3 5.3 5 1,5.315.2 1 ° 1 '- p u 5'1,5.3 5-2 ULTIM&TSTRENGTH w'3i J \VAC, USeO IN PILE GAP 10G1 a IJ, O 5-I4 3 Of�-G� �q )R0Conk 11 f 3n i2 I' d .{1OP130T-. U. YP CONC1•2- ice FILE I YMM I TDPoF WALL 1 g" j�1� JOINT ION -SLOPE 2'-O" OP OF GAM: 1 1 EL 1011-0" 7 001-0" r�' IR9''0" FIN PL. 51.- E PSOO A•24 �GKR FIN FL EL I L I� PL EL- 1001 1001-00 l�RID 12 SGT 10N (2) 444 A P'4'• 8�/9 t$ GLRI D5 FLO�R P>LOGK'DU15 SLOP i4C 12 r I, u TIS PRAM 100 O GRADE OEAM 14 GUR6 - ` K' k , 1 ° 1 O 1' S-215.2 I WQALL, roR REINF SEE iii v M • -u ► 5- h-2 5•I 5.2 IL `' Iii ,,..i% TIE DaAM V4 BEAM Il4 -% PG -2 m SLE GAP �� �'Y ' hEE - •- . -, ,. ' , ,I o Y u �,, ai EL. l aF 5 •n 2 N 4G 12 •:ys: v .o ,•* .'OP OF Dc .r;; _ '� \ TOP OF GRADE -may N - TIE SEA 3 2"GI R , 2" GLR (2� 8 REOAR (2lif >3 (ANT ) " � ' _aEAM 51.1431-6"_(,�- o ' ELg3-L = J 2 I50LATION JOINT I 6LA60N GRADE I A UND 1NRONyH r' I (2)#4 4 TIES ® milFOR r 1 PILE REINF YILE LAP PG 2 GONT GIRADE BEAM PILE GAP REINF WEE `` • SCHEDULE e______ MiliG• (G)TO AL) \� iii lift(. Or - / ! ` 12REINF O3,, r I5sa F' .°i; %� {� ? \ C�o�IGI'� © _. I 1..____f'3 ° I L(2) If 5 T 4 5 (T) 5 7-4 be6¢10 9 BETb,&3.1 G -I COL I/ _ � _ OETAIM �A6 NED 511,4 SEGTI ON SECTION E.4 F. "`�" 6.12.5 51EL_____ �\5. P` 2�2 SECTION g.2 .2 SECTION -2 1/2" it_ Thi on 5 1,5.21h 2 1" = 1 I' 0" 5-115 2 I" :: 1'- 0" 5-I 5- 1x : I I- 011 <i -31h 2 DETAIL BEGC `/ 3 1 1/2" = 1 • 0" 5-1 5.2 1 ENGINEERS (moo RooRo DR.aMN4 12.21. SVM REVISION BY APPROVED DATE SVM REVISION er APPROVED DATE ❑ AUBURN, WA. 98002 ACCEPTABILITY RAN, ^ eY UNrAU DATE SUBTITLE LAST REVISION srNeoL $7 DATE 1 FIQ4T RE\/IEW SR (i B4OB•BS ❑ EVERETT, WA. 98201 TEES DESIGN ANDIOR SPECIFICATION IS APPROVED L' ' WE' lo,../U1.4. F A I r UNPATION DL/ I fr L-.. SKEET 2 IhhUE FOR PG-2MIT5 sR �K R.20,B5 BOE,AIG' ❑KENT, WA. 98031 APPROVED BY DEPT. DATE �e<".�.vseL.L TITLE � �i � Of A IhhU zD FOR GONSYRUGTIDN „¢ Pik 1UJt,f 5 FACILITIES DEPARTMENT 0 PORTLAND, OR. 97220 K BOEING ERRPLOYEES ACTR�ti'Y CENTER {"S R��ORP ov..vw�E SE. Uus oK1;.S• Ia.2t.N7 ❑ RENTON; WA. 98055 - RD ED yJwl7, or i 1iENTAI CENTER '°" NO.84011 U SEATTLE, WA. 98124 A,D ��.1e!bE' Io.11.eE;_ SEATTLE SEATTLE . WA. D I0' - 150 - 1000 �.� <. .Er 7/11.1 MTRA130 231TIMA3 LINTEL. 6EAMA IG *G 4 azvA1OR GYI,INOER \ — OPENINGt eEE PLAN 5.4a-3 FOR LOCATION (2)S 5 VERT 51-8" oM04v TrP ON PLAN 1 I 5-0 5.3 (24# 5 UJ 9A ll; LM4BL OEAM S O DOOONGRS V OAEN0t? L4r01/2. WOE! rox I>ALAJJc* Of &ALLai*, '%E 5.9 h•IB '2 titorm. 056.4. \v/zY e•ol-1G ToreiNG 4*I/OF0-0" (.440cd- to0.0, • fi e,&11.4%,64 2J-2 Jov7rs cAJr♦co 5 L 10 N1ASU1 Vf'Rf R1:w, TYr NoM : REluf srlowu I lU A.ovrrloN 1n rye. wr.LL. RE11JF \v44144.4 15 u7r SNOwN r)51 -A.1 L 1I-eg - I•b�ilSJ 5-(IP- PG -4 116 15-9 L'1(4cvt • 14.3 d' OHO *NI TYPIG,LL :Premier- WAU, TGE IDSTA.IL In : ILi) R I 3i -eV YW, ELE a10R rd 5-3 P�EN1oN 11• WA' gPit00FING TOPOFPILECAPf, ELEVATOR PIT cu- \ "/A eror i 114E 5•IS 5•Ib Pens. I L 2'/4" ELEVATOR PIT 4- - l' -o" 5.1,5'315 �1S \ re, 1 6E•(01.ly 550110 IJ I�,.e i l l_OII N. TOP Rom LOKI 'eV - (4)"5 4..'t• ev ro1.1 1'-4'e2 EL2.2QOR 6n-wot . 5-1415-113 1fGou4 a \51-0" 2' M1orm. G IK w2 couG TOPriNl� I< Goo' °‘::. —11 A 4' 4460 Nie 1/I!e I/16 NP L 4c9h x 5/IL I'•0" (LLv)e- Sew 5176;OP 4 -MLI D" amu 5GTIOki B•II-Oe 5-315• If, SEGi1OIJ lz"=I!OI. J S-Ia j - 8 5501101.1 1"=11-0 II FOR REFERENCE ONLY FACILITY DESIGN BY CEI DATE S�IiTI Dh1 n' 6.,+u Nyw.l. FIN F1 et - 001 - 0 t_I WWF (2)1F4 CONT 5-3 S -Ib 10'-9 %Z! Foe b LA1JG& of GALlour% SEBA 5- 1551b WWF FIN PL P.I. 9R I - 10" IMAM DETAIL fII 1.On /*5 5 -IS BE&C [S5 ENGINEERS . SYM REVISION BY APPROVED DATE SYM REVISION eV APPROVED DATE A 15%IE FOR PEkMIV2 15hUED FOR GONhTRUGTION DELETE ' E.1'K' A RY PET '5' (GEGORr7 2RAaJIN/� 5k Se— 9.20.85 I0.II BS 1221.87 BOE,AVG FACILITIES DEPARTMENT ❑ AUBURN, WA. 98002 ❑ EVERETT, WA. 98201 ❑ KENT, WA. 98031 ❑ PORTLAND, OR. 97220 ❑ RENTON, WA. 98055 • SEATTLE, WA. 98124 ACCEPTABILITY THIS DESIGN ANDIOR SPECIFICATION IS APPROVED CN J. L w•. Move MENIZi( AND frIl eLLAIJWl15 2'(AI L5 Rlio 172001"461 LAST REVISION SYMBOL DATE APPROVED BY DEPT. DATE MAN9ELL CNECKED strove ry Aar APPR OV O 10,11,85 TITLE DOSING EMPLOYEES ACTIVITY CENTER DEL'ELOI'mEI.'TAL CENTER SEATTLE 0 W11. ORE J -IJ OF 'DB NO. 64021 DWG No 10q -I r70 - 000 Do 1.000 4075 REV. 7/83 U U fl TECHNICAL MEMORANDUM Date: April 7, 2017 Boeing Project No.: D33118-01 To: Micah Hodges and Gabriel Hess Company: The Boeing Company From: Coffman Engineers and Golder Associates RE: RESPONSE TO LANDLORD QUESTIONS ON PILE REMOVAL DEVELOPMENTAL CENTER SITE, BUILDING 9-150 10500 W MARGINAL WAY PLACE SOUTH TUKWILA, WASHINGTON 98108 Coffman Engineers (Coffman) and Golder Associates Inc. (Golder) are assisting The Boeing Company (Boeing) with technical support for the demolition of the 9-150 Building located at 10500 W. Marginal Way Place South in Tukwila, Washington. Boeing is tasked with removing the building and restoring the property to its "original condition" as part of its agreement with the property owner. The existing building was constructed between 1988 and 1989 and is supported on a pile foundation system consisting of 16 -inch - diameter, 26 -foot -long (from pile cap) augered cast -in-place (ACIP) piles. Boeing and the property owner have had discussions on the disposition of the piles after demolition of the building and the owner posed some questions for the Boeing team to respond to. The questions are listed below with responses. Question 1 What are the advantages and disadvantages for keeping the existing piles in place if a new single story tilt - up concrete warehouse type building is placed at that location? Question 1 Response Advantage: Leaving the existing piles in place would not preclude the construction of a single -story tilt -up warehouse building. Regardless of how carefully the pile extraction and hole backfill project is carried out, it will likely result in a less stable soil condition because concrete piles are stronger and stiffer than the existing soil or any backfill that would replace them. Removing the piles in their entirety would cause disturbance to the surrounding soil. Leaving the piles in place would not adversely affect the feasibility of designing a foundation for a new lightly loaded building, such as a single -story tilt -up building. In a similar case in Renton, Washington, Golder helped design a building foundation for a site that had existing piles in the ground from a previous building. Golder recommended against removing piles below an existing building foundation since it would disturb the existing soil conditions already in place and instead recommended ground improvement consisting of rammed aggregate piers installed between the existing piles for the foundation of the new building. The new building will not rely on the old piles and can be constructed using a standard spread footing foundation. Disadvantage: There are no significant disadvantages to leaving the piles in place for the construction of a new lightly loaded single -story warehouse building. Since the existing pile caps would be removed and the ACIP piles cut off to a suitable depth (to be determined as part of future report) below the final grade as part of the planned demolition of the 9-150 building, the new building contractor's work at the site would not be impeded by the piles. Please see attached plans and details for additional information. The warehouse building designer would have to locate ground improvement elements such as aggregate piers (or piles) for their new foundation between the existing ACIP piles. However, this would not be a difficult or costly process. -- Golder Associates 1671618-1-coffman_boeing bldg 9-150 property owner questions-rev1-2017-04-07.docx ACOFFI N EER SMAN N G The Boeing Company April 7, 2017 Pile Removal Letter 2 D33118-01 Question 2 If backfilling consists as described below, provide insight into possible soil settlement issues. a. Controlled Density Fill (CDF) backfilling at piles (-30 feet to -5 feet below grade, just at the pile locations) b. Crushed concrete at pile cap areas (from -5 to -3 below grade) c. Structural backfill at foundation (from -3 feet to ground level Question 2 Response The existing foundation system consists of pile caps supported by ACIP pile(s), grade beams and tie - beams. If the existing foundation system is removed, the holes in the ground should be backfilled. If the contractor chooses to backfill the holes based on the plan as described above, waiting a period of time (e.g., one week) between item (a) and item (b) as listed above could help to reduce the risk of any immediate settlement and deformation at the ground surface. At the end of this waiting period, any possible depressions formed as a result of collapsed voids may be backfilled with additional CDF. Then, item (b) and item (c) above can be completed. It is Golder's opinion that the risk of any future soil settlement at the pile locations under the backfill's own weight is low if backfilling is performed as described here. However, any additional settlement due to any future load (e.g., new building, parking lot, storage area) depends on several factors such as new applied loads, foundation type and size, soil improvement etc. and should be estimated by the new designer. Question 3 Pros/cons of leaving the piles in place if the existing building location is left undeveloped or utilized as parking, storage, etc.... f Question 3 Response There are no disadvantages to leaving the existing ACIP piles in place if the property will be re -developed as a parking lot or surface storage area. Since there would be no ground disturbance from pile removal, the risks of localized or differential ground settlement would be lower than if the piles were removed. As long as the pile caps were removed and the tops of the ACIP piles were cut off at least a few feet below final parking lot or storage area grade, the risk of reflection cracking of the pavement (resulting from the piles acting as hard points compared to the surrounding soil) would be low. Question 4 Summary of findings & the engineer's recommendation to keep or remove the piles Question 4 Response Our response to this question is based on Golder's recent project experience for a private development client with nearly identical project conditions. They were demolishing an existing pile supported building and constructing a new building over the same foundation footprint. In that case, Golder recommended leaving the existing piles in place and installing aggregate piers between the piles to mitigate for possible earthquake induced settlement (liquefaction) and improve the load carrying capacity of the existing soil for the new building. Golder Associates 1671618-I-coffman_boeing bldg 9-150 property owner questions-rev1-2017-04-07.docx ACOFFMAN NGINEERS : r-, V+, n The Boeing Company Pile Removal Letter Question 5 As -built plan of pile locations. Question 5 Response 3 April 7, 2017 D33118-01 Coffman has prepared a drawing using our topographic survey of the site and record drawings of the building, herein. It is recommended that during the demolition of the building, the contractor has a professional land surveyor record the cut pile locations and top elevations prior to backfilling the soil. These surveyed locations can be included in the Boeing records drawings. We appreciate this opportunity to be of service to you on this project. Please contact us if you have questions or if we can be of further assistance. Sincerely, GOLDER ASSOCIATES INC. M. Birkin :ayrak, PhD, PE Senior Project Geotechnical Engineer COFFMAN ENGINEERS, INC. ames G. Johnson, LG, LEG Principal and Senior Consultant Allison Hazen, PE EmerOj.la,(SE Senior Civil Engineer and Project Manager j MBB/JGJ/ALH/KW/EO/MMG/sb Principa , Structural Engineering Attachments: - Cl Existing Site Plan, Demolition of Building 9-150, 09-YRD C2 Proposed Site Plan, Demolition of Building 9-150, 09-YRD S-1 Foundation Plan & General Notes, Boeing Employees Activity Center (109-150-1000-S1) S-2 Foundation Details, Boeing Employees Activity Center (109-150-1000-S2) Golder Associates 1671618-I-coffman_boeing bldg 9-150 property owner questions-rev1-2017-04-07.docx AFOFFINEMANERS NG SYM US POST OFFICE WAREHOUSE OXBOW PARKING LOT ASPH TBM 'A' 'AXIS' MAG NAIL AND WASHER ELEV = 17.51 m //////////////////// //////// //////7//// wumn Emil A7 II1111111Iloiiiiiiiiii FOUND PUNCH MARK IN 3-1/4" BRASS — DISK, IN CASE, STAMPED 'HORTON DENNIS— & ASSOC. SEATTLE WENATCHEE WA' — ELEV = 17.52' — (3/3/2017) — ASPH — P_ SEWER PUMP STATION NO.11 (VALLEY VIEW SEWER DISTRICT) e 0 SIGN, TYP SIGN TREES — — LAWN— C PILE CAP, TYP (SEE PILE NOTE) —LAWN - ELEVATOR PTT 328.6' 09-150 BOEING EMPLOYEES ACTIVITY CENTER C — TREES — JOGGING TRAIL / TREE CANOPY UNE TRAIL UGHT, TAP 7- . AP�ROXI00):NORE0 JUSR15�lC¶gLLg_ PARCEL 0423049150 DESIMONE TRUST OXBOW 2601 PARCEL 0423049186 WESTERN FSO FOUND 1/2" REBAR AND CAP. LS815033, (N42'32'56"W) 18.29' OF CALCULATED LOT CORNER (3/3/2017) A1.9.14.44147.9 LAWN x/15 TREES 4/ REVISION DEMOLITION OF BUILDING 09-150 W4640620 BY CEI APPROVED DATE REASON EXISTING SITE PLAN Q SCALE: 1" = 40' BY APPROVED DATE MS 03.30.17 4/6/2017 PROPERTY UNE / ACOFFMAN NGINEERS 1601 Fifth Avenue. Suits 60015.8100, WA 98101 ph R06.62].OT1T Ilex 206.626.0116 COHmen.wm LASTING ...A NA+I .+++ ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRARN M. BOSILKOV CHECKED A. HAZEN DATE 03.30.17 03.30.17 GUMIIRE / EXISTING SITE PLAN LEGEND • 1=0[9x .V•®9 SET BENCHMARK FOUND MONUMENT IN CASE FOUND REBAR AND CAP AS NOTED SANITARY SEWER MANHOLE FIRE DEPARTMENT CONNECTOR FIRE HYDRANT STREET LIGHT POWER JUNCTION BOX POWER METER SIGN BOLLARD TREE TREE DRIP LINE x , A CHAIN LINK FENCE LINE PROPERTY LINE O rm1 D ROCKERY DATUM CONCRETE BUILDINGS WOOD CHIPS PAVERS HORIZONTAL DATUM: NAD 83/91 WASHINGTON STATE PLANE ZONE NORTH — COMBINED SCALE FACTOR 0.99999843942 KINGCO MONUMENT DESIGNATION: 3427 DB ID: 40803 — 6" DIA. CONCRETE POST W/3" BRASS DISK PUBLISHED COORDINATES — NORTHING:186864.56 (USFt)/EASTING: 1280027.03 (USF7) VERTICAL DATUM: NAVD 88 CITY OF SEATTLE MONUMENT DESIGNATION: 3685-5801 DB ID: 48204 2" BRASS CAP MARKED CITY OF SEATTLE SURVEY ELEVATION: 19.463 (USFT) TBM "A": SET AXIS MAG NAIL & WASHER ELEVATION: 19.66 (USFT) TBM "B": TOP OF PUNCH MARK IN 3-1/4" BRASS DISK, IN CASE, STAMPED 'HORTON DENNIS & ASSOC. SEATTLE WENATCHEE WA' ELEVATION: 17.52 (USFT) LEGAL DESCRIPTION (PER ROS REC. NO. 20170215900003) THAT PORTION OF GOVERNMENT LOTS 6 AND 7, IN SECTION 4, TOWNSHIP 23 NORTH, RANGE 4 EAST OF W.M., IN KING COUNTY, WASHINGTON, AND OF THE NORTHWEST QUARTER OF THE SOUTHEAST QUARTER OF SAID SECTION 4, LYING NORTHEASTERLY OF THE NORTHEASTERLY BOUNDARY LINE OF PROPOSED EXTENSION OF THE DUWAMISH WATERWAY, WHICH THE PARTIES HERETO AGREE SHALL BE DESCRIBED AS A LINE PARALLEL TO AND 225 FEET NORTHEASTERLY FROM, MEASURED AT RIGHT ANGLES, THE SOUTHEASTERLY PROJECTION OF THE CENTERLINE OF THE EXISTING DUWAMISH WATERWAY (COMMERCIAL WATERWAY DISTRICT NO. 1 OF KING COUNTY). SITUATE IN THE CITY OF TUKWILA, COUNTY OF KING, STATE OF WASHINGTON PILE NOTE EXISTING PILE LAYOUT PER RECORD DRAWING 109-150-1000—S1. CONTRACTOR TO VERIFY AS—BUILT CONDITIONS DURING DEMOLITION. 40 20 0 20 40 80 SCALE: 1" = 40' CURRENT REVISION SYMBOL W4640620 - DATE 03.30.17 ENGINEER W. McHUGH CHECRED APPROVED APPROVED 03.30.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA SHEET Cl JOB NO. W4640620 COMP N0. DWG NO. 09—YRD—C1 SYM US POST OFFICE WAREHOUSE ( ( SEWER PUMP STATION NO.11 (VALLEY VIEW SEWER DISTRICT) OXBOW PARKING LOT ASPH TRW 'A' 'AXIS' NAG NAIL AND WASHER ELEV= 17.51 Ilr FOUND PUNCH MARK IN 3-1/4" BRASS — DISK. IN CASE. STAMPED 'HORTON DENNIS— & ASSOC. SEATTLE WENATCHEE WA' — ELEV = 17.52' (3/3/2017) ASPH ❑-o A C� TREES BURIED 16° DIAM. AUGERED CAST—IN—PLACE PILE TO BE CUT BELOW GRADE, TYP (SEE PILE NOTE) – LAWN – –LAWN – 328.6' POWER TRANSFORMER LAWN – C JOGGING TRAIL / TREES TREE CANOPY UNE pp�RO%I�ATE5HORELIINE JUSRIS�ICT10�E13.E__ ^LAWN – PARCEL 0423049186 WESTERN FSO FOUND 1/2" REBAR AND CAP. LS#15033, (N42'32'5611) 18.29' OF CALCULATED LOT CORNER (3/3/2017) PARCEL 0423049150 DESIMONE TRUST OXBOW 2601 LAWN – TREES U 11, e, 1V REVISION DEMOLITION OF BUILDING 09-150 W4640620 BY CEI APPROVED DATE SYM REVISION PROPOSED SITE PLAN SCALE: 1" = 40' BY APPROVED DOTE MS 03.30.17 41712017 S QJ PROPERTY UNE / AFOFFMAN N G I N EER S 1601 RM Avelue. SWW OOO I SeSRIO, NIA 06101 pN 206.623.0nT l Ma 206.624.3776 Toff man.comLASTING *Powwow* ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRAWN M. BOESD OV A. HAZEN DATE 03.30.17 03.30.17 SUBTTRE PROPOSED SITE PLAN LEGEND • ammgmRO.e4 SET BENCHMARK FOUND MONUMENT IN CASE FOUND REBAR AND CAP AS NOTED SANITARY SEWER MANHOLE FIRE DEPARTMENT CONNECTOR FIRE HYDRANT STREET LIGHT POWER JUNCTION BOX POWER METER SIGN BOLLARD TREE TREE DRIP LINE K A CHAIN LINK FENCE LINE PROPERTY LINE D CCO2 D ROCKERY DATUM CONCRETE BUILDINGS WOOD CHIPS HORIZONTAL DATUM: NAD 83/91 WASHINGTON STATE PLANE ZONE: NORTH – COMBINED SCALE FACTOR 0.99999843942 KINGCO MONUMENT DESIGNATION: 3427 DB ID: 40803 – 6" DIA. CONCRETE POST W/3" BRASS DISK PUBLISHED COORDINATES – NORTHING:186864.56 (USFV)/EA STING: 1280027.03 (USFt) VERTICAL DATUM: NAVD 88 CITY OF SEATTLE MONUMENT DESIGNATION: 3685-5801 DB ID: 48204 2" BRASS CAP MARKED CITY OF SEATTLE SURVEY ELEVATION: 19.463 (USFt) TBM "A": SET AXIS MAG NAIL & WASHER ELEVATION: 19.66 (USFt) TBM "B": TOP OF PUNCH MARK IN 3-1/4" BRASS DISK, IN CASE, STAMPED 'HORTON DENNIS & ASSOC. SEATTLE WENATCHEE WA' ELEVATION: 17.52 (USFT) LEGAL DESCRIPTION (PER ROS REC. NO. 20170215900003) THAT PORTION OF GOVERNMENT LOTS 6 AND 7, IN SECTION 4, TOWNSHIP 23 NORTH, RANGE 4 EAST OF W.M., IN KING COUNTY, WASHINGTON, AND OF THE NORTHWEST QUARTER OF THE SOUTHEAST QUARTER OF SAID SECTION 4, LYING NORTHEASTERLY OF THE NORTHEASTERLY BOUNDARY LINE OF PROPOSED EXTENSION OF THE DUWAMISH WATERWAY, WHICH THE PARTIES HERETO AGREE SHALL BE DESCRIBED AS A LINE PARALLEL TO AND 225 FEET NORTHEASTERLY FROM, MEASURED AT RIGHT ANGLES, THE SOUTHEASTERLY PROJECTION OF THE CENTERLINE OF THE EXISTING DUWAMISH WATERWAY (COMMERCIAL WATERWAY DISTRICT NO. 1 OF KING COUNTY). SITUATE IN THE CITY OF TUKWILA, COUNTY OF KING, STATE OF WASHINGTON PILE NOTE EXISTING PILE LAYOUT PER RECORD DRAWING 109-150-1000–S1. CONTRACTOR TO VERIFY AS–BUILT CONDITIONS DURING DEMOLITION. 40 20 0 20 40 80 Wel SCALE: 1" = 40' CURRENT REVISION SYMBOL W4640620 — DATE 03.30.17 ENGINEER W. McHUGH CHECKED APPROVED APPROVED 03.30.17 TTTIE DEMOLITION OF BUILDING 09-150 CIVIL MASTER 09—YRD COL. DEV. CENTER, WA SHEET C2 JOB NO. W4640620 COMP NO. DWG NO. 09—YRD—C1 . M. BOSIKLOV: 03/30/17 ›- 0:1 ix oLU w w z_ z fx z w w UJ < U w CO = O IL = O I- w LU w a PILE TO REMAIN CURB WALL, DEMO FINISH GRADE /�Y/y/A// TZ�Y/Z Y CUT DEPTH COLUMN, DEMO SLAB, DEMO D A •A GRADE BEAM, DEMO • D A D• A D A 16" DIAM. �— ACIP PILE, TO REMOVE CUT PILE A DAD . 16" DIAM. ACIP PILE, TO REMAIN A FOUNDATION REMOVAL SECTION SCALE: 112"=1'-0" \— GRADE BEAM, DEMO PILE CAP, DEMO £OANs 1601 Fifth Avenue, Suite 900 I Seattle, WA 98101 ph 80.623.8717 I fax 80.624.8775 conman.com LASTING aw.bi mm l•nmr. DATE: 4/7/2017 0 0 0 0 0 0 0 0 0 90'-0" 20'-0" TYPICAL 10 PL 30'-0" N I PC N 6 BAYS B 20'r0" = 120'-0" " CURB WALL 1 1'-0" PC -2T ICE BERM PC -2 S-1 6 6' CURB PC -2 15" NIDE GRACE SEAM PC -3T 10'-7 1/4 PC -3T PC -47 CURB 1 '-3 1/4 PC -3T PC -3T TIP. FOP 8 GRIDS 6" CURB PC -6 P. FOR -2 I PC -2T S-1 S-2 S-1 S-18 -4 5" NIDE TIE BEAM TYP. U.O.N. 15" WIDE GRADE BEAM S-1 S-2 115" MI(£ 0 ORAX BEAM PC -2 X11' II III 3'-9 1 /2 �I PC -3T EDGE GF II CURS/ AIF■ III 11 S-115-3 TYP. FOR T PC -3 A PC-: S-1 5-2 0 5 PC -4 END OF CURB 6'-7 1/4 6'-9 1/2" 15' WI GRACE 18" MICE GRADE BEAM 1 .5 PC -3T PC -4 6'-9 1/2" END CIRBB 6'-2 1/4" 3'-9 1/2' CF CUA 10'-0 I/4' SRI I '-3 1 /4" 0Y 6'-7 1/4 1 '-3 1/4" GATE 10'-0 /41 J S- S-2 3'-9I/2" S'-2 I/4" NOTE: TOP OF PILE CAP ELEV. 98'-6" U.O.N. TOP OF GRADE BERM ELEV. 98'-6" TOP OF TIE BERM ELEV. 98'-6" FOUNDATION PLAN I/16"=1'-0" m ETISIM By APPROVED DATE FIRST REVIEW SR NEM 8.8.85 4 14X-AJ5 FOR GONTR..6rof'. RE'/I64/ 2 A B 3 ISSUE FOR PERMITS ISSUE FOR CONSTRUCTION RECORD DRAWING T IE FOR FRELII'IIUAE( RE./16y SR SR SR fR. SE PK 9.20.85 PK TS 14.11 .S PKA,TSAI 2.21.8' PK 10.2480 5 C. P IfiUE ROA. ST6EL AIV$ Ih>UEd ROY( Y.ONY'114UL1104. 505 PLANS REIAINEP POP. RC4.00.p RECORD DRAWING, J• (K. se) K! //, 10.2T.8B G4 (i6 11.25.59 PC -3T THE BOEZAW COMPANY FACILITES DEPARTMENT GENERAL STRUCTURAL NOTES COCES AND SPECIFICATIONS A. UNIFORM BUILDING COOS - 1982 EDITION B. AMERICAN NATIOAL STANDARDS INSTITUTE - ANSI A58.1 - 1982 C. ACI 3I8-83 BUILDING CODE REQUIREMENTS FOR REINFORCED CONCRETE D. CR51 MANUAL OF STANDARD PRACTICE - LATEST EDITION E. RISC MANUAL OF STEEL CONSTRUCTION - EIGHTH EDITION F. AMS STRUCTURAL WELDING COLE - ANSI/ANIS 01.1-84 DESIGN CRITERIA A. WIND LOAD - PER UNIFORM BUILDING CODE 1. BASIC WIND SPEED = 80 NPH 2. EXPOSURE C B. SEISMIC - ZONE NO. 3 PER UNIFORM BUILDING CODE V = ZIKCSW = TOTAL LATERAL FORCE AT BASE BRACED FAME Z = 0.75 I = 1.0 K = 1.0 CS = 0.14 C. ROOF LIVE LOAD SNOW LOAD = 25 PSF PROVISION FOR SWN DRIFT HAS BEEN MADE PER ANSI A58.1-1982. D. FLOOR LIVE LOM (ND LIVE LOAD REDUCTION APPLIED) 1. SLAB -CN -GRADE: 2. SECOND FLOOR: 3. STAIRS: 4. TRACK: 100 PSF OR 4.0 KIP CAPACITY FORKLIFT 100 PSF (INCLUDES 20 PSF PARTITION D.L.) 100 PSF 100 PSF E. SOILS DATA 1. REFEREME: 'REPORT OF GEOTECHNICAL INVESTIGATION, PROPOSED BOEING EMPLOYEE ACTIVITY CENTER, BOEING DEVELOPMENT CENTER OXSOW PARKING LOT. SEATTLE. WASHINGTON" BY CONVERSE CCNSLLTAMS DATED JULY 23. 1985. 2. l6" DIAMETER AEERCAST PILES SHALL EXTEND TO A TIP ELEVATION OF MINUS 15 FT AND PROVIDE 50 KIPS DOWNWARD AND 30 KIPS LPLIFT CAPACITY RESPECTIVELY. 3. HIGH STRENGTH MORTAR MIX SHALL DEVELOP A MINIMUM F'C 4000 PSI AT 28 DAYS AND SHALL HAVE A MINIMUM CEMENT CONTENT OF 10 SACKS/CU YD. 4. SOIL ENGINEER SHALL MONITOR ALL FOUNDATION CONSTRUCTION AND EARTHORK AND DETERMINE THAT ALL TIE DESIGN REQUIREMENTS ARE FULFILLED. MATERIALS A. STRUCTURAL STEEL I. STRUCTURAL SHAPES AND PLATES .]LLL BE ASTM A36. STRUCTURAL TUBES SHALL BE ASTM A500 CR. B. 2. ALL FABRICATION AD ERECTION SMALL COALY WITH RISC SPECIFICATIONS. 3. SHOP CRA4INCS DF ALL STRUCTURAL STEELIDGM SHALL BE SUBMITTED TO THE ENGINEER FOR APPROVAL PRIOR TO TIE FABRICATION. 4. ALL STEEL HEWERS SHALL BE LIVEN ONE SHOP COAT OF APPROVED PRIM. SURFACES TO BE EMBEDDED IN CONCRETE OR FIELD WELDED SHALL NOT BE PAINTED. 5. SURFACE PREPARATION FOR PAINTING SHALL CONSIST CF RUST AND SCALE REMOVAL BY COMMERCIAL SANDBLASTING. SURFACES TO BE PAINED MUST BE DRY. FREE OF DIRT. OIL. CREASE, CR OTHER FOREIGN MATTER. B. STRUCTURAL STEEL CONNECTIONS 1. ALL BOLTS SHALL BE ASTM A325 UNLESS NOTED OTHERWISE. INSTALLATION SHALL BE IN ACCORDANCE WITH RISC SPECIFICATIONS. 2. ALL HIO: -STRENGTH BOLTS BETA A325 SMALL BE FRICTION -TYPE CO1ECTIOIS WITH LORD INDICATING WASHERS. UNLESS OTHERWISE NOTED. 3. ALL ANCHOR BOLTS SMALL BE ASTM R307 OR R36 UNLESS NOTED. 4. COLUMN ANDHOR BOLTS TO BE FURNISED WITH TWO HEAVY HEX NUTS AND TWO WASHERS EACH BOLT UNLESS NOTED OTHERWISE ON DRAWINGS. 5. ALL WELDING SHALL BE AS SPECIFIED ON TAE ORAWIN(S AND SHALL BE PERFORMED BY CERTIFIED YELLERS IN ACCCROANCE WITH ARS AND RISC SPECIFICATIONS. ELECTRODES SHALL BE E-70 SERIES. C. CAST -IN-PLACE CONCRETE 1. COEEUETE FOUNDATIONS AHD WAIS SHALL DEVELOP A MINIMUM FC' = 4000 PSI AT 28 DAYS. 2. CONCRETE FLOOR SLABS AND SLABS O1 GRME SHALL DEVELO A MINIMUM FC' = 4000 PSI AT 28 DAYS. 3. DESIGN MIX FOR CONCRETE SHALL SE SIBMITTEO TO THE ENCINEER FOU APPOVAL PRIOR TO CONSTRUCTION. D. REINFORCINC STEEL 1. CONCRETE REITFOICENENT SWILL DECOR/LED. FABRICATED AND PLACED IN RCCORO.ANCE WITH ACI -318-83. 2. REINFORCING STEEL SHALL BE OEFOBED BILLET STEEL CONFOMING TO ASTM A615 GRADE 60. 3. WELDED MIRE FABRIC SHALL COFCRM TO ASTM A-185. ALL WINE FABRIC SHALL BE SUPPLIED AND LAID IN FLAT MEETS AND SHALL BE CHAIRED TO PROPER POSITION IN SLAB. 4. IELDINC OR TACK WELDING OF REINFOCTNC BANS TO OTHER BARS OR PLATES. ANGLES. ETC.. IS PROHIBITED EXCEPT WERE SPECIFICALLY APPROVED BY TIE ENGINEER. 5. LAP AUL BARB! A MINIMUM OF 4$ &R DIMETEn UNLESS OTHERMISE NOTED. ❑ AUBURN, WA. 96002 ❑ EVERETT, WA. 98201 ❑ KENT, WA. 98031 ❑ PORTLAND, OR. 97220 ❑ RENTON, WA. 98055 III SEATTLE, WA. 98124 ACCEPTABILITY • T"IS IlSIM ROAR SPECIFIC/TIN IS 0RTA0IED Micr APFROvSD R (EPI CD 15 EOl40OR Dtx. G.E. NWSELL PI [T 1L NA`RMLORAM P.M. KOSTENIIIK NS :,M .I.1. SIMMDNS 6. REINFORCING STEEL SMALL BE ACCURATELY PLACED AND ADEOMTELY SECURED IN POSITION. LOCATION OF REINFORCEMENT SHALL BE AS INDICATED ON TAE DRAWINGS. TIE FCLLOMINC PROTECTION FOR REINFCRCEMENT SHALL BE PROVIDED: MIN COVER (IN) (A) CAST AGAINST RCD PERMANENTLY EXPOSED TO EARTH 3 (B) EXPOSED TO EARTH OR WERNER .6 THROUGH .18 BARS 2 .5 BARS AND SMALLER 1-1/2 IC) NOT EXPOSED TO HEATHER OR IN CONTACT WITH TIE GROUND SLABS. WALLS • 3/4 E. METAL DECK 1. 3" DEEP - 18 GAUGE ROOF DECK SHELL BE SECTION 21 AS MAN FACTLRED BY H.N. ROBERTSON COPRNY OR APPROvED EWIL. WITH GALVANIZED FINISH PER SPECIFICATIONS UNLESS OTIERWISE NOTED. 2. 2" -CL -99-20 CAUSE FLOOR DECKING SHELL BE AS MANFRCTIRED BY M.H. ROBERTSON COPNNY OR APPROVED EGIJAL.-WITH GALVANIZED FINISH PER SPECIFICATIONS. 3. TIE GENERAL CONTRACTOR SHALL PROVIDE TIE MISCELLANEOUS STEEL FRAMING REQUIRED TO SUPPORT TIE KETAL DECK AT TIE COLLAS. BRACING. OR ANY OTTER INTERRUPTION. 4. TIE METAL DECK SUIPPLIER SHALL PROVIDE SNIP DRAWINGS OE TIE PROPOSED DECK LAYOUT. N4ICH SHALL INCLUDE THE MISCELLANEOUS STEEL SPPORTS. 5. FLOCK DECK FASTENING: FASTEN TO ALL TRANSVERSE SUPPORT WITH 3/4" DIAMETER PLUME WELDS SPACED 12" ON CENTER ACROSS TIE WIDTH OF TIE PANEL (MINIMUM 3 MELDS PER PANEL). 11/2" TOP SEAM WELD SIDE LAPS OF ADJACENT PANELS AT 5'-0" ON CENTER. FASTEN EDGES TO PARALLEL SUPPORTS WITH 3/4" DIAMETER PUDDLE MELDS AT 12" ON CENTER. 6. ROOF DECK FASTENING: FASTEN TO ALL. TRANSVLMS>: SUPPORTS WITH 3/4' DIAMETER PTAQE WELDS SPACED 6" ON CENTER ACROSS TIE WIDTH OF TIE PANEL )MINIMUM 7 MELTS PER 36" WIDE PANEL). 11/2" TCP SEAM MELD SIDE LAPS CF ADJACENT PANELS AT 24" ON CENTER. FASTEN FTTFS TO PARALLEL SUPPORTS WITH 3/4" O(PJETER Pim F MELDS AT 12" ON CENTER. 7. MINIMUM BEARING SHALL BE 3". F. LROJT NON -SHRINK GROUT SHALL BE EMBECO 4636 BY WASTER BUILDERS. CR OTTER APPROVED EQUAL. C. OPEN WEB SALLL JOISTS SHALL BE OF SIZE AND TYPE AS NOTED ON ORAMINS Aro TO CONFORM TO STANDARD SPECIFICATION AS ADOPTED BY STEEL JOIST INSTITUTE AND AMERICAN INSTITUTE OF STEEL COSTRUCTION. ALL NECESSARY BRIDGING AND FASTENERS SHALL BE FURNISHED WITH THE OPEN WEB STEEL JOISTS. H. MASONRY J. I. COORETE HLSORY UNITS SWILL BE MLLOI COORETE UNITS CONFORMING TO ASTM C80 GRADE N4 WITH FC' = 1350 PSI. 2. MORTAR SHALL BE TYPE S WITH MINIMUM COPRESSIVE STRENGTH OF 1800 PSI RT 28 DAYS. 3. MASONRY GROUT SHALL DEVELOP MINIM) COPRESSIVE STRENGTH OF FC' = 2500 PSI AT 28 DRYS. 4. GROUT SOLID ALL CELLS CONTAINING REINFORCING AND ENlEODED ITEMS. 5. MINIM M REINFORCINC:.5 0 4'-0" O.C. VERTICAL. .6 0 3'-4' O.C. ICRIZONTAL.USE (II .6 8 BOD BEAMS. pPROVIDE Z(21 .5 VERTICALCAAT WILL ETES INTERSEIN WTSILECFACExTOOMMATCH HORIZONTAL REINFORCEMENT."ATC R R5 AE) INTERSECTIONS. AT ALL HALL OPENINGS PROVIDE .5 X FULL WALL HEIGHT VERTICLE EACH SIDE..6 X OPENING WIDTH . 5'-0" HORIZONTAL IN BOE BEAM SILL UNDER ANO IN LINTEL BEAM OVER. PROVIDE OWLS FROM CONCRETE FOUNDATION TO MATCH VERTICAL WALL REINFORCEMENT SIZE AND SPACING. PROJECT DOWELS 2'-1". LAP VERTICAL WALL REINFORCEMENT 30 DIAETERS CR 2'-0" MINIMUM. LAP BOO BEAM REINFORCEMENT2'-6". STAGGER UN SPLICES 6'-0" MINIMUM. LESS OTHERWISE. SHOWN ON DRAWINGS 6. UNLESS NOTED. VERTICAL REINFORCING IS TO BE AT CENTER OF WALL. 7. MASONRY TO BE CONSTRUCTED USING RUNNING BOO. GENERAL 1. CONRtlCTOR SHALL VERIFY Al DIMETSIOS IN THE FIELD, ANY VARIATIONS FRO4 THE DRAWINGS SHALL BE BRILDIT TO THE IMEDIATE ATTENTION OF THE ENGINEER. - 2. ADEQUATE SHORING AND BRACING OF Al STRUCTUA_ MEMBERS ORINC CONSTRUCTION SHALL SE PROVIDED. ANY PROPOSED FIELD CHANGES SHALL HAVE PRIOR APPROVAL FROM TIE ENGINEER. 3. LOCUTION AND SIZE OF EOJIPIENT PADS. ANCHOR QTS. INSERTS. OR HANGERS FOR EQUIPMENT SHALL BE TAKEN FROM APPROVED VENDOR'S DRAWINGS AND CHECKED WITH THE EQUIPMENT SUPPLIED. 4. GENERAL CONTRACTOR SHALL COORDINATE ANO/OR PROVIDE AUL ADDITIONAL OPENINGS. INSERTS AND EMiEOENTS BOWM ON ARCHITECTURAL, MECHANICAL AND ELECTRICAL DRAWINGS. INSPECTION AND TESTING I. PROVIDE INSPECTION ACCODI5C TO THE REQUIREMENTS 1W UBC SECTION 305 306. 2. FOR TESTING iEQ IREMENTS FOR ENO: MATERIAL. SEE TECHNICAL SPECIFICATIONS. FOR REFERENCE ONLY FACILITY DESIGN BY CEI DATE 9.011TLE FOUNDATION PLAN A GENERAL NOTES RECORD (DRAWING) 11.25. 89 IAST REVISER SREEl ONIE MING GK Er1 LOOYE/ESS RCTIVITY CENTER DETcLO i K.N1R . SERTThE. MAR 0.I LSE OPEC S --i J(S Ni. 84021 Ix w 105-150-1000 dr- GAP CAP* col- i,•,p9 1'- 0" 210_1_ 21-4." 4, LAP # 401... S' �° .. --- - . -1 _ -74..a II GOY- 1' 2'- IO o 2' -IO E 1' �,J iB � I + 11i- -- RGAP 0 . \ TCrW1-r118 I j 1,•• „..21-0"�,. _ c 11(0 4 4 a .. 4 0' 1 6 >. ` Imo/ -2 (cAPa VnzY) c 1 S I` R♦ .•2 E ` ) , _ ! V _--/-) ) V .- -GAP ��. o. --I t ( ,.PILE 4 i1/43 � 4\ , 1 +/ \ �t)_ /;>, Noi/2=i- (10"PIA ,PILO n — i - (t =-eC-1 0" 5-1 j -2 5_— 3. GoL _N of N i'- li T'1L!.r N R` EF F-3: am(c---.) = / ( -4_o T / \\ • 15.r724-1 (5 m/..--1)) \\//2" CO/ER' PG -3T: 45..6 .9 --• -- -i / \'"1j-��21.d�2_p•G .—. \i/+r / \ l \ / \ /f 1 i)� tP`vn), o(35/♦ J - Y—.c i - _ I `". `I `I FOUR LE -GP AFIVE PIL5 - GAP PI51 X PILE -GAP _ ?H12�; PILE - GAP TWO PILE - GAP PC -2 21(i/o' PIA .PILE5)(\ PC-343T(1(o"DIA;PII�E5) Pc- 444T(1�"PIA. PILES)J r'C-5 (1(0"DIA PC- I/2" : 1'- 0" 55.2 112" ••1'- 0' ,PILSil7 5-2 I/211 : 1'- 0" 127 (1�"DIA ,PILE5)x(91 5-1 5-1 1_5-2 = 1' 0" h -(4P2 U2" _ r- O" 5-1 15.2 PILE GAP SGN5DUL E F -R 00 `(F+IN 15I.o'1MhL''-0°) R' 11.0,1. ® e„,, OFht-OPE MARK NO TOP 51. THIGKNE55 125INPORGEMENT =y 'ROP OF 15DLATION JOINT' �° L. -0, 1 q pp0�012WAgY EdNLYe PG- 1 I- ” F161-0" I- u 21-6" (5)* G 5W T f, 6 - EV 6 607 1 TOP OF,GUR15 EL 101 6-1 -' TOP OF (5)!t4 Tif.S cal- � -oil GUR�Fi EL e9 A G-3 —, G 3 1501.ATION FG 2 98' !o° 21-(�" (S) Y l� LONG WAY WV' U ('l) *6 SHORT WAY NOD( c___) �- — FIN FL EL �f n�--� o Nu 100.0 a 5-I 5.2 (02)4,B 3!cB GONG LURE WALL, TO hEE ARCH Dwl?h i 11.1#,t41,- 101 D 1"GNAMF WEPT I F I I JOINT / FG 27 9B' G" 2'-l0" (6) Y b v Ew, a - R (q� cuK 99 -big e r i POR FIN15H qq - 80 Y \ I I FIN PLR t:L 100=0 " Cs ). 5 L-_.) Ew. T RElNF PrR la ,x_115.2 1 (2) 8 WWI' I �PeouL _ 8W@ 12 -lr (4 TOTAL.) FG -3 98' G" 2'-G" 5EE DETAIL . ce-TpLS �._ $ �9 k — < x C - clL�c ' x— PILE GAP - r2cLIm 4. IP • ' %Et� in" �� NMI i;: P G 0T q8' -G' 2' 10" SEE DETAIL G - s ''aa •''� i jiY: TOP OF •"'> TDP OF .��.. '; I lllll� _ _. FIG -4 90''G" '2 -Ca" . (5)*8 r Er,41 e. • _ 4u \Al.1 ..r 1 Ei. q0'- ° :. GRAD BEAM I- R \ EL r10 (o IMIN r �! c �I; /a �-OLB ELEY - (o 2" cue-LIOLo . c I�, ION TNILKENED �A L'3 PG -4T 98'-60' 2' - lam" (7)`b ' R.N./ is r -�- 5LA1, hEE )) Tik OuyT (4) 6 r M -../.T ( ) Cna22-D V¢T �/ K3 Y4tIEh I I _ PG -5 95i- 0" 21- (7) *15 r_____, nm"s a a" O.G (Tyr ALL PILE..) le AU6C-Rceeir (3) $ // A mt.. (fL.= zofv F5p e Ib" h 2j5 3 _.-� PILE GAP tai" we, 0 TYr CGT AL) © `9 9 2- III 7-(5) (0, TDAL)1/0" (0) - 11gJG•v,.Y eottoM NDTE; PILE PC -6 90'•G n 2-10 " 6 r : C,ONnIJUE uPLIFT PILES reo2T,III - F REINF coo yyXtT NB.Y I60rTOM _ E_�v.t Pr TIE I.EAM REEF PG -37 P��4T'R Fs (I) BxT1zs. 6 (STRA G -in -%/ ♦♦Yl f POR PHALANGE OF 5�' TIES INOP�h : TNw FILE caP \v/r� N Lw 1+NZ;FULL- LgtJ4'R{ OF I GALLOUT! hEE . r { `/, 5. 6-2 %�' `% IL 0 1, Y LE CONG. TO ILP. f IGs 4cn0 P•St(10 SAOtC•S cF GFrIB,fC/GU, 4L9.' ICK R�INFv= FLURp SWMP ♦V/Ma,L u/ATL.R-cEME3 rr RAna . 0.50,AV�t t><TUr s. FAR SIDE OF C.AP W}1HJ 40E POaa• ILY7,LT/.AT A1J� OWE FRt'(e,'• UES. 25aTO9S� PSB, •-�`• AREEJ0T hI LE }. ��,-ID� 1'•5" I 11 5.2 `�-2 SECTION 4UL - M �E I-•. 1; (I" . 2. PILE OAP C.4,1 C. TO ea- f,r. • 4000 P51 LIRL .+A.C'T OF cE"1BJt �NnnWpU7, 1 r PILE TIP 4, SE GT I ON n MIN/ou.yot) - wartrz 5 6b.L MAY. t'O¢ SAc.B4 UNLE Ml>< cer- i&BN P-FPROviD b' MS4GI4 /WD GT -f. , EL -15,0 (M5L) 1'i c 1 '- O" I h 2 5.1 h Z 12"= I ' 0 ° 1_ b -3j 6-5 1 / 5-1,5-3j5-2 1' 1O '- " h-1 ,5.315.2 ULTIMATE 6TRBNOTH cco�IG1.1 \VABS UB IN PILE GAP ba51a1J, 12 0 5-14 N 121*000N1 (� I rT1�' " 12 I-- I d TYP CONGR�"f� ISI L>: . • o TOP of LURA TOP OF GONG WALL I 9" J 3`I !la LNATTION EL 101'-0" rEl. 100'-0" I%I. REL Pi LIRID'121 5eci-1 9EERAc, 24 FOR N FIO.Oa ge8uTS FIN FI- EL TI5t,OAM I — T / FIN Fl R ELSLOPE100'-ou IDD' - D" \--FINr (2) * 4 i 99'-87/9 ®GIRIDS ' ` SLOP 114.12c t• " 100 0 I GIRADE BEAM J� 7 l 'K' k'D' 1" � 1 I- o, �+ 5-2115.2 I GuRe, WALL-, FOR REINP555 i I M 1--. • _x —A —x --- — 5-I LS•2 5-I 52 �I� 'r.v TIE PIEAM V41am N 15EAM 1/4 —%. _ PG 2 `� inv)hrriv.i jOP F PILE GAP QF NON '� " 6E8 j: • +i' �.. Fit 'Pe It ; . S rr : \y 1. 1b'-6 "-\ 5.116 2 IF 4L 12 .o.;. 4` '• tr TOP OF 412A% .T TOP OF �c /, 9a^\- tIE 13EA� 2"uR '1 2"LCIS r'; Y J2 (2)# S REBAR (2 118 Nt '���' BF -AM 51,4431-01 __.j..(2)#4 N p _t� _ 51.181-6') r 150LATION JOINT @ 51-APSON GRADE A UND 1NROH N --,,_ PICS REINP PILE GAP A `, ,_ PG -2 � P4 7155 ® I[o DONT " GRADE F 5•A.M BBBB. ,w„, < RNF 555P () i 8 co SCHEDULE (!o TOTAL) picimil glill (a" FOR REFERENCE ONLY . T 12 __ 15E��0 - a�� F • . I ` // IG17 ' (2)1F 0 T45 FACILITY DESIGN BY CEI DATE I I ( 521 Q no !cow, 1�.I 3°.. I {I);5 Tt6R(az109 3wr.j G �_ BFAM SLAPS �' -I COI./ �` P_ "`"" F'�5I OFP4-2P L____ SECT ON n SE CTI ON ^ G 1 SECTION G 5 5Q�2�gy I/2ND 1'_O" 5 1,5.215.2 SECTION r DETAIL. 5• 5j 1 1 O' S 1 1 o 5.315 2 / /- \ 1 1/2" = I • 0" 5-115-2 BEdc? ENGINEERS IC. REcoZo DR.wh14 12 21 5TM REVISION BT APPROVED DATE SVM REVISION BT APPROVED DATE O AUBURN, WA. 98002 ACCEPTABILITY R'=`• BT DATE SUBTITLE LAST REVISION STMIOL 87 DATE 1 FIR -/T RF�VIaW �jRUMALI \n,- BA0.85 0 EVERETT, WA. 98201 THIS DEONI APPRO 5►E THIS DESIGNA DIOR WI..D W.V.EN,JUIt ED I)NPATIUN D TAIL -5 SHEET 2 Ih'UE FOR PERMITS sk Pk 9.20.85�pNN ` �/ BOL,/�� 0 KENT, WA. 98031 uPRov¢D ev DEPT. D DATE GE.�lK11N$t(_(� TITLE 5R=T ? , T OF A I','264E0 FOR LONTRUC(ION ae . P/c lNk_ 10.11,VV, FACILITIES DEPARTMENT 0 PORTLAND, OR. 97220 �• • BOEING EICPIOYEES ACTR'Ii7 CENTER t5 R�,OR2 cc -44,4,16i S_ PA. '\S I2,y1.A7 O RENTON; WA. 98055 ,8, .,r>r.-� RO ED Yjw'.// / DEVELOPMENTAL CENTER ,DB NO 84021 IW ■ SEATTLE, WA. 98124 :21'201U44,4 IO,11.�5_ SEATTLE. WA. DWG NO. 109 150 -1000 ROW sn REV. TSO Cx Shin, Keun Ho J From: Sent: To: Subject: Attachments: Jesse Hinds, Project Engineer Jesse Hinds <Jesseh@cgius.net> Monday, August 14, 2017 7:16 AM Frontdesk Fw: Natural gas removal for demo permit 102 and Duwamish 102 and Duwamish.PNG 7L E REVIEWED FOR ODE COMPLIANCE APPROVED SEP 21 2011 City of Tukwila BUILDING DIVISION construction group international I www.cgius.net 1425-487-2618 x108 desk 1425-327-2463 cell seattle office 119407 144th Ave NE, Bldg D I Woodinville, WA 98072 1425-487-2618 office 1425-487-2619 fax From: Helton, Glenn <Glenn.Helton@pse.com> Sent: Friday, August 11, 2017 4:57 PM To: Jesse Hinds Subject: Natural gas removal for demo permit 102 and Duwamish Hi Jessie, Print the attached diagram with this email for documentation. The natural gas remote meter has been removed and the riser has been turned off and locked. Per your request as documentation for your demo permit the natural gas has been removed by PSE. The customer owned underground fuel line needs to have the remaining gas blown out by the customer but once that is done the building will be completely disconnected from natural gas and from PSE gas standpoint, there is no longer gas to this building. Thanks, Glenn Helton Gas - Project Manager PUGET SOUND ENERGY P: (253) 395-6926 C: (425) 559-4647 6905 S 228th St Kent, WA 98032 PUGET SOUND ENERGY CORRECTION LTR# Q 1 o 3 RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER Shin, Keun Ho J From: Calipes, Shelby <Shelby.Calipes@seattle.gov> Sent: Friday, September 01, 2017 12:54 PM To: Jesse Hinds Cc: Mark Marcell; Gravell, Thomas Subject: RE: Power Termination: Boeing 9-150 - 2601 S 102nd St Tukwila Wa aka 10500 W Marginal Way S SR#1708422 Hi Jesse, Based on our records, your permanent underground removal of service request per SR#1708422 at 10500 W Marginal Way S Tukwila, WA 98108 has been completed today Friday 9/1/2017. May this email serve as proof that SCL has completed you service request. Please let me know if there is anything else needed. Thank you. Sincerely, Shelby Calipes I South Customer Engineering Supervisor Seattle City Light South Customer Engineering Seattle City light shelby,calipes@seattle.gov TEL(206) 386-4274 From: Jesse Hinds [mailto:Jesseh@cgius.net] Sent: Friday, September 01, 2017 11:17 AM To: Calipes, Shelby <Shelby.Calipes@seattle.gov> Cc: Mark Marcell <markm@cgius.net>; Gravell, Thomas <Thomas.Gravell@seattle.gov> Subject: Power Termination: Boeing 9-150 - 2601 S 102nd St Tukwila Wa Hi Shelby, This is Jesse, with CGI. We had power disconnected at a job site of ours, at the Boeing Dev. Center in Tukwila. Could you please send me something in writing/email showing this has been done? Thanks. Jesse Hinds, Project Engineer construction group international I www.cgius.net 1425-487-2618 office 1425-327-2463 cell seattle office 19407 144th Ave NE, Bldg D I Woodinville, WA 98072 1425-487-2619 fax 1 I\,` PUGE7 SOUND E!9ERGYI Gag L%6 - CGCG Ma ?: 10) • ills .h { PSE remote gas meter location erving building to be demolished. Meter has been 'removed & riser is turned off & 'locked f.• • • • • This yellow line is a customer owned underground fuel line between meter & building. As far las PSE is concerned we are disconnected. If remaining gas in ndergrouad fuel line has been Mown out by the customer 'wnatural gas is no longer at this ilding and for demo permit gas 4 has been removed. 4 111. 'y, This building to be rreashed �Pr egrees h • t4_ t �• • 41, 6. c us w vs c in to ✓ 04 tow o= c c m a m N LI -Jo n N "' h a s G _d u c tip N u ++ ..1; O OJ o c E u t a .. al 1/1 0 — g c v_, a e c to c te 01 a s w lu c 4° c To c.°Jc trelo w ;s :cgaiw c°c / 44. e. a. It 11, .1 • • ,�j ♦, • 4 V,11 4 s'''''''' 4. 0 .. j'-4‘.i e.,II _V }1•-drIP. • -11.0‘ a ,l ., 4C4' 06 ' '6L 44 ' o" l; 41.416. tS V.t 7 1Dfr.. AO.- ! i. 461. • For Prepared For Stormwater Pollution Prevention Plan 09-150 Building Demolition Northwest Regional Office 3190 160th Avenue SE Bellevue, WA 98008-5452 425-649-7000 Owner Gabriel Hess The Boeing Company Project & Construction Manager Project Site Location Operator/Contractor Mark Marcell Construction Group International(CGI) President The Boeing Company, Tukwila, WA Certified Erosion and Sediment Control Lead Mark•Marcell, CGI 206-718-5501 SWPPP. Prepared By SWPPP Preparation Date Coffman Engineers, Inc. 1601 Fifth Avenue, Ste. 900 Seattle, WA 98101 206.521.0779 06/29/2017 Approximate Project Construction Dates Construction Start Date: 07/05/2017 Construction End Date: 12/31/2017 hri 0193 REVIEWED FOR BODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila BUILDING DIVISION CORRECTION LTR# RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER n r L� rl Contents 1.0 Introduction 1 2.0 Site Description 3 2.1 Existing Conditions 3 2.2 Proposed Construction Activities 3 3.0 Construction Stormwater BMPs 4 3.1 The 12 BMP Elements 4 3.1.1 Element #1 — Mark Clearing Limits 4 3.1.2 Element #2 — Establish Construction Access 4 3.1.3 Element #3 — Control Flow Rates 5 3.1.4 Element #4 — Install Sediment Controls 5 3.1.5 Element #5 — Stabilize Soils 7 3.1.6 Element #6 — Protect Slopes 7 3.1.7 Element #7 — Protect Drain Inlets 8 3.1.8 Element #8 — Stabilize Channels and Outlets 8 3.1.9 Element #9 — Control Pollutants 8 3.1.10 Element #10 — Control Dewatering 10 3.1.11 Element #11 — Maintain BMPs 10 3.1.12 Element #12 — Manage the Project 11 3.2 Site Specific BMPs 13 4.0 Construction Phasing and BMP Implementation 14 5.0 Pollution Prevention Team 15 5.1 Roles and Responsibilities 15 5.2 Team Members 15 16 6.0 Site Inspections and Monitoring n 6.1 Site Inspection 16 i i Li r 6.1.1 Site Inspection Frequency 17 6.1.2 Site Inspection Documentation 17 6.2 Stormwater Quality Monitoring 17 6.2.1 Turbidity Sampling 17 6.2.2 PH Sampling 18 7.0 Reporting and Recordkeeping 20 7.1 Recordkeeping 20 7.1.1 Site Log Book 20 7.1.2 Records Retention 20 7.1.3 Access to Plans and Records 20 7.1.4 Updating the SWPPP 20 7.2 Reporting 21 ii 7.2.1 Discharge Monitoring Reports 21 7.2.2 Notification of Noncompliance 21 7.2.3 Permit Application and Changes 21 Appendices Appendix A Site plans • Vicinity map • Outfalls map • Drainage map • Site plan with TESC measures n Appendix B Construction BMPs Appendix C Alternative Construction BMP list • List of BMPs not selected, but can be referenced if needed in each of the 12 elements Appendix D General Permit Appendix E Inspection Forms • Construction Site - Stormwater Inspection Form • Construction Site - Stormwater Sampling Form Appendix F Project Schedule n 1.0 Introduction This Stormwater Pollution Prevention Plan (SWPPP) has been prepared as part of the NPDES stormwater permit requirements for The Boeing Company's 09-150 Building Demolition construction project in Tukwila, WA. The site is located at 10500 W Marginal Way (parcel number 0423049150) in Tukwila, Washington. The existing site is located south of the Oxbow parking lot, east of the US Post Office warehouse and north/west of the Duwamish river. The project consists of demolishing the existing 35,250 sf 09-150 building and restoring the site upon demolitions completion. Construction activities will include demolition, excavation for utility and footing removal, capping and removal of existing utilities, pavement restoration for utility removal, and controlled clearing to remove the building and appurtenances. The purpose of this SWPPP is to describe the proposed construction activities and all temporary and permanent erosion and sediment control (TESC) measures, pollution prevention measures, inspection/monitoring activities, and recordkeeping that will be implemented during the proposed construction project. The objectives of the SWPPP are to: o Implement Best Management Practices (BMPs) to prevent erosion and sedimentation, and to identify, reduce, eliminate or prevent stormwater contamination and water pollution from construction activity. o Prevent violations of surface water quality, ground water quality, or sediment management standards. o Prevent, during the construction phase, adverse water quality impacts including impacts on beneficial uses of the receiving water by controlling peak flow rates and volumes of stormwater runoff at the Permittee's outfalls and downstream of the outfalls. Page 1 of 21 This SWPPP was prepared using the Ecology SWPPP Template downloaded from the Ecology website on February 19, 2015. This SWPPP was prepared based on the requirements set forth in the Construction Stormwater General Permit, Stormwater Management Manual for Western Washington (SWMMWW 2012). The report is divided into seven main sections with several appendices that include stormwater related reference materials. The topics presented in the each of the main sections are: o Section 1 — INTRODUCTION. This section provides a summary description of the project, and the organization of the SWPPP document. ' o Section 2 — SITE DESCRIPTION. This section provides a detailed description of the existing site conditions, proposed construction activities, and calculated stormwater flow rates for existing conditions and post— construction conditions. o Section 3 — CONSTRUCTION BMPs. This section provides a detailed description of the BMPs to be implemented based on the 12 required elements of the SWPPP (SWMMWW 2012). o Section 4 — CONSTRUCTION PHASING AND BMP IMPLEMENTATION. This pr section provides a description of the timing of the BMP implementation in relation to I� the project schedule. o Section 5 — POLLUTION PREVENTION TEAM. This section identifies the appropriate contact names (emergency and non -emergency), monitoring personnel, and the onsite temporary erosion and sedimentation control inspector o Section 6 — INSPECTION AND MONITORING. This section provides a description of the inspection and monitoring requirements such as the parameters of concern to be monitored, sample locations, sample frequencies, and sampling methods for all stormwater discharge locations from the site. L_1 o Section 7 — RECORDKEEPING. This section describes the requirements for documentation of the BMP implementation, site inspections, monitoring results, and changes to the implementation of certain BMPs due to site factors experienced _ during construction. n Supporting documentation and standard forms are provided in the following Appendices: o Appendix A — Site plans n o Appendix B — Construction BMPs o Appendix C — Alternative Construction BMPs list o Appendix D — General Permit o Appendix E — Site Log and Inspection Forms o Appendix F — Engineering Calculations _ I Page 2 of 21 n 2.0 Site Description 2.1 Existing Conditions The proposed site is located at 10500 W Marginal Way (parcel number 0423049150), in Tukwila, WA. A Site Vicinity map and coordinates are provide in Appendix A. The construction site is approximately 6.67 acres in size and currently has a 0.81 acres building, with asphalt access. Pervious areas are covered in grass and native ground cover, with the topography ranging from 20' to 16'. The site slopes to the southeast, towards the Duwamish River. L' Existing stormwater at the 09-150 building is collected in a series of stormwater catch basins and rain leaders before being conveyed through pipes to an existing direct discharge to the Duwamish t� River, east of the building. The discharge point is a n existing 12" ductile iron culvert. The Point of discharge is going to remain as part of this project. 2.2 Proposed Construction Activities r- The proposed development consists of removing the 09-150 building and restoring site conditions �i to before the building was constructed. Construction activities will include demolition, excavation, grading, utility removal, stormwater system adjustment, asphalt restoration, tree removal, and hydro -seeding. The schedule and phasing of BMPs during construction is provided in Appendix F. _i The following summarizes details regarding site areas: ❑ Total site area: 6.67 acres ❑ Percent impervious area before construction: 41% ❑ Percent impervious area after construction: 32% ❑ Disturbed area during construction: 2.46 acres ❑ Disturbed area that is characterized as impervious (i.e., access 0.60 acres roads, staging, parking): Page 3 of 21 T 3.0 Construction Stormwater BMPs 3.1 The 12 BMP Elements The following section describes the BMPs to be implemented onsite to control sediment and stormwater. In addition, alternate BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP(s) listed below are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may result in violation(s) of the NPDES Construction Stormwater permit, the Certified Erosion and Sediment Control Lead (CESCL) will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. 3.1.1 Element #1 — Mark Clearing Limits To protect adjacent properties and to reduce the area of soil exposed to construction, the limits of construction will be clearly marked before land -disturbing activities begin. The edge of the construction area adjacent to existing sidewalks located north and south of the existing building to be demolished will be clearly marked. Trees, landscaping, and grassed areas immediately adjacent to active construction areas will be marked for protection. ❑ High Visibility Plastic or Metal Fence (BMP C103) is a relevant BMP to marking the clearing limits for this project. Fence with screening will be used to delineate the work area. The fence will be used to control the boundaries of demolition and paving. Fencing will help direct pedestrian and automobile traffic on site, along with reducing potential FOD. Screening shall be composed of a high visibility plastic or fabric material. 3.1.2 Element #2 — Establish Construction Access Construction access or activities occurring on unpaved areas shall be minimized, yet where necessary, access points shall be stabilized to minimize the tracking of sediment onto public roads, and street sweeping and street cleaning shall be employed to prevent sediment from entering state waters. All wash wastewater shall be controlled on site. The specific BMP related to establishing construction access that will be used for the project is: ❑ Stabilized Construction Entrance (BMP C105) ❑ Use existing paved access onto site/parking lot The existing paved accesses onto the site shall be used, until it is removed and then a crushed rock construction entrance will be installed at the entrance of the site. The entrance will be maintained by removing sediment build up and placement of new rock. Nearly all construction activities will be conducted on impervious surfaces. Small amounts of sediment may be tracked from excavated areas Page 4 of 21 U to the impervious surfaces. All sediment tracked onto impervious surfaces will be managed through the use of a sweeper truck. LI❑ Temporary Sediment Pond (BMP C241 ❑ Interceptor Dike and Swale (C200) or existing drainage ditch ❑ Sand Bags ❑ Wattle staked to the ground Runoff from the flightline currently does not enter onto the site. It is preferred that the all offsite runon be intercepted prior to entering onto the site and conveyed to a natural discharge location �j outside of the limits of construction. The discharge location shall be an established vegetated/stabilized drainage ditch or catch basin pipe system. 3.1.3 Element #3 — Control Flow Rates In order to protect the properties and waterways downstream of the project site, stormwater discharges from the site will be controlled. The specific BMPs for flow control that shall be used on this project include: ❑ Temporary Sediment Trap (BMP C240) The Boeing Company has an established permanent sedimentation pond that collects all water that enters into catch basins. Discharges from the site will enter into these ponds. Sedimentation ponds allow turbid water time to settle out before final discharge. The project site is located west of the Cascade Mountain Crest. As such, the project must comply with Minimum Requirement 7 for flow control (Ecology 2005). Site sedimentation ponds and detention ponds include metered release to control discharge rates as approved by the City of Everett and Ecology. [1 3.1.4 Element #4 — Install Sediment Controls U All stormwater runoff from disturbed areas shall pass through an appropriate sediment removal BMP { before leaving the construction site or prior to being discharged to an infiltration facility. The specific BMPs to be used for controlling sediment on this project include: ❑ Storm Drain Inlet Protection (BMP C220) ❑ Silt Fence (BMP C233) ❑ Straw Wattles (BMP C235) ^li ❑ Temporary Sediment Trap (BMP C240) ❑ Temporary Sediment Pond (BMP C241 ❑ Alternative BMP not included in the SWMMWW (2005) Page 5 of 21 Storm drain inlet protectors will be installed on all catch basins on the active construction site before construction begins. Storm drain inlet protectors help filter sediment out of stormwater before it enters into the site's stormwater drainage system. If necessary, silt fence will be installed in the material stockpile area. Silt fence will be located to the south of the stockpile berms. The sedimentation and detention ponds will collect any water that enters into the drainage system. The existing ponds allow sediment in the water time to settle out before final discharge. If necessary, asphalt berms will be used to control the amount of sediment that leaves the site through erosion. Sediment berms will be used to control the flow of water entering into the construction site. This will reduce the amount of erosion on the site. Sediment control materials will be kept on site in order to maintain and adjust sediment control devices during the life of the project. Materials will include but will not be limited to: filter fabric socks; cold mix asphalt; filter fabric fence and a sweeper truck. In addition, sediment will be removed from paved areas in and adjacent to construction work areas manually or using mechanical sweepers, as needed, to minimize tracking of sediments on vehicle tires away from the site and to minimize washoff of sediments from adjacent streets in runoff. In some cases, sediment discharge in concentrated runoff can be controlled using permanent stormwater BMPs (e.g., infiltration swales, ponds, trenches). Sediment loads can limit the effectiveness of some permanent stormwater BMPs, such as those used for infiltration or biofiltration; however, those BMPs designed to remove solids by settling (wet ponds or detention ponds) can be used during the construction phase. When permanent stormwater BMPs will be used to control sediment discharge during construction, the structure will be protected from excessive sedimentation with adequate erosion and sediment control BMPs. Any accumulated sediment shall be removed after construction is complete and the permanent stormwater BMP will be restabilized with vegetation per applicable design requirements once the remainder of the site has been stabilized. The Chitosan Enhanced Sand Filtration (CESF) will be implemented based the nature of the fines in the glacial till and the possibility of encountering limited concentrations of contaminated soil. A Chemical treatment form with the treatment system operator, proposed treatment option and chemical will be submitted to Department of Ecology for approval. Contaminated Soils The area of the project site is contaminated with lead and other metals, and polyaromatic hydrocarbons (PAHs) from operation as a skeet shooting range. Boeing has had several soil removals to remediate the contamination. Samples collected after excavation show that the area is below MTCA (Model Toxics Clean-up Act) clean-up levels. However, the Depaitrnent of Ecology construction stormwater inspector has told Boeing that even though an area has been cleaned up to MTCA clean-up levels, residual contamination may Page 6 of 21 contaminate .stormwater. Ecology does not have any supporting information for this policy. All the contaminants in Gun Club area also occur naturally. 3.1.5 Element #5 — Stabilize Soils Exposed and un -worked soils shall be stabilized with the application of effective BMPs to prevent erosion throughout the life of the project. A relevant BMP to establish soil stabilization on this project is: Plastic Covering (BMP C123) Mulching (BMP C121) Exposed and un -worked soils will be stabilized through the use of plastic sheeting. Any soils that will be exposed and un -worked for more than seven days during the dry season and for more than two days during the wet season will be covered with plastic sheeting or equal BMP. The project site is located west of the Cascade Mountain Crest. As such, no soils shall remain exposed and un -worked for more than 7 days during the dry season (May 1 to September 30) and 2 days during the wet season (October 1 to April 30). Regardless of the time of year, all soils shall be stabilized at the end of the shift before a holiday or weekend if needed based on weather forecasts. In general, cut and fill slopes will be stabilized as soon as possible and soil stockpiles will be temporarily covered with plastic sheeting. All stockpiled soils shall be stabilized from erosion, protected with sediment trapping measures, and where possible, be located away from storm drain inlets, waterways, and drainage channels. A plan for final site stabilization shall be provided by Contractor at the outset of the project for approval by Environmental Affairs. Upon plan implementation, Environmental Affairs shall approve final stabilization methodologies. Project shall not be deemed terminated until Environmental Affairs determines that the project site meets all the requirements of final site stabilization as defined by Ecology. 3.1.6 Element #6 — Protect Slopes All cut and fill slopes will be designed, constructed, and protected in a manner than minimizes erosion. Any slopes encountered on the site will be protected such that they do not contribute to turbid runoff. Plastic Covering (BMP C123) Interceptor Dike and Swale (BMP C200) Check Dams (BMP C206) Page 7 of 21 3.1.7 Element #7 — Protect Drain Inlets All storm drain inlets and culverts made operable during construction shall be protected to prevent unfiltered or untreated water from entering the drainage conveyance system. However, the first priority is to keep all access roads clean of sediment and keep street wash water separate from entering storm drains until treatment can be provided. Storm Drain Inlet Protection (BMP C220) will be implemented for all drainage inlets and culverts that could potentially be impacted by sediment -laden runoff on and near the project site. The following inlet protection measures will be applied on this project: F r Drop Inlet Protection ❑ Excavated Drop Inlet Protection ❑ Block and Gravel Drop Inlet Protection r ❑ Gravel and Wire Drop Inlet Protection ❑ Catch Basin Filters r ❑ Straw Wattles ❑ Alternative BMP not included in the SWMMWW (2005) � 3.1.8 Element #8 — Stabilize Channels and Outlets Where site runoff is to be conveyed in channels, or discharged to a stream or some other natural drainage point, efforts will be taken to prevent downstream erosion. ❑ Outlet Protection (BMP C209) 3.1.9 Element #9 — Control Pollutants All pollutants, including waste materials and demolition debris, that occur onsite shall be handled and disposed of in a manner that does not cause contamination of stormwater. Good housekeeping and preventative measures will be taken to ensure that the site will be kept clean, well organized, and free of debris. If required, BMPs to be implemented to control specific sources of pollutants are discussed below. Vehicles, construction equipment, and/or petroleum product storage/dispensing: • All vehicles, equipment, and petroleum product storage/dispensing areas will be inspected regularly to detect any leaks or spills, and to identify maintenance needs to prevent leaks or spills. • On-site fueling tanks and petroleum product storage containers shall include secondary containment. • Spill prevention measures, such as drip pans, will be used when conducting maintenance and repair of vehicles or equipment. Page 8 of 21 r L • In order to perform emergency repairs on site, temporary plastic will be placed beneath and, if raining, over the vehicle. • Contaminated surfaces shall be cleaned immediately following any discharge or spill incident. • Locate spill kits within 25 feet of all stationary fueling stations, fuel transfer stations, and mobile fueling units. At a minimum, spill kits shall include: i) Oil absorbents capable of absorbing 15 gallons of fuel. ii) A storm drain plug or cover kit. iii) A non -water containment boom, a minimum of 10 feet in length with a 12 gallon absorbent capacity. iv) A non-metallic shovel. v) Two five -gallon buckets with lids. Chemical storage: Any chemicals stored in the construction areas will conform to the appropriate source control BMPs listed in Volume IV of the Ecology stormwater manual. In Western WA, all chemicals shall have cover, containment, and protection provided on site, per BMP C153 for Material Delivery, Storage and Containment in SWMMWW 2005 Application of agricultural chemicals, including fertilizers and pesticides, shall be conducted in a manner and at application rates that will not result in loss of chemical to stormwater runoff. Manufacturers' recommendations for application procedures and rates shall be followed. Demolition: • • Dust released from the excavation of the soil pile and removal of the parking lot will be controlled using Dust Control measures (BMP C140). • Storm drain inlets vulnerable to stormwater discharge carrying dust, soil, or debris will be protected using Storm Drain Inlet Protection (BMP C220 as described above for Element 7). Process water and slurry resulting from saw cutting and surfacing operations will be prevented from entering the waters of the State by implementing Saw cutting and Surfacing Pollution Prevention measures (BMP C152). Concrete and grout: • Process water and slurry resulting from concrete work will be prevented from entering the waters of the State by implementing Concrete Handling measures (BMP C151). Sanitary wastewater: • Portable sanitation facilities will be firmly secured, regularly maintained, and emptied when necessary. Solid Waste: Page 9 of 21 • Solid waste will be stored in secure, clearly marked containers. Other BMPs will be administered as necessary to address any additional pollutant sources on site. Spill Kit: Spill kits must be available on site to insure a quick response time. At a minimum, spill kits shall include: i) Absorbent pads ii) Absorbent rock like kitty litter iii) Nitrile Gloves v) One containment boom capable of managing a minimum of 30 gallons of fuel or other spilled liquid. 3.1.10 Element #10 — Control Dewatering Foundation, vault, and trench de -watering water, which have similar characteristics to stormwater runoff at the site, shall be discharged into a controlled conveyance system prior to discharge to the sediment pond. Clean, non -turbid de -watering water, such as well -point ground water, can be discharged to systems tributary to state surface waters, as specified in Element #8, provided the dewatering flow does not cause erosion or flooding of receiving waters. These clean waters should not be routed through stormwater sediment ponds. Highly turbid or contaminated dewatering water from construction equipment operation, clamshell digging, concrete tremie pour, or work inside a cofferdam, shall be handled separately from stormwater. Other disposal options, depending on site constraints, may include: i) infiltration ii) transport offsite in a vehicle, such as a vacuum flush truck, for legal disposal in a manner that does not pollute state waters, iii) Ecology -approved on-site chemical treatment or other suitable treatment technologies, iv) sanitary sewer discharge with local sewer district approval, if there is no other option, or v) use of a sedimentation bag with outfall to a ditch or swale for small volumes of localized dewatering. 3.1.11 Element #11 — Maintain BMPs All temporary and permanent erosion and sediment control BMPs shall be maintained and repaired as needed to assure continued performance of their intended function. Maintenance and repair shall be conducted in accordance with each particular BMP's specifications. Visual monitoring of the BMPs will be conducted at least once every calendar week and within 24 hours of any rainfall event that causes a discharge from the site. If the site becomes inactive, and is temporarily stabilized, the inspection frequency will be reduced to once every month. Page 10 of 21 P 1 LJ n n .-J r All temporary erosion and sediment control BMPs shall be removed within 30 days after the final site stabilization is achieved or after the temporary BMPs are no longer needed. Trapped sediment shall be removed or stabilized on site. Disturbed soil resulting from removal of BMPs or vegetation shall be permanently stabilized. 3.1.12 Element #12 — Manage the Project Erosion and sediment control BMPs for this project have been designed based on the following principles: ❑ Design the project to fit the existing topography, soils, and drainage patterns. ❑ Emphasize erosion control rather than sediment control. ❑ Minimize the extent and duration of the area exposed. ❑ Keep runoff velocities low. ❑ Retain sediment on site. ❑ Thoroughly monitor site and maintain all ESC measures. ❑ Schedule major earthwork during the dry season. In addition, project management will incorporate the key components listed below: Phasing of Construction Construction for this project will be conducted in three discrete phases: • Rough clearing and grading to remove the approximate 130,000 cubic yards of soil. • Utility construction and connection to existing utilities. • Perimeter retaining wall and Building foundation construction • Flightline grading and concrete panel construction Within each project phase, construction phasing will occur to the extent practicable to prevent soil erosion and, to the maximum extent possible, transport of sediment from the site during construction. Revegetation of exposed areas and maintenance of that vegetation shall be an integral part of the clearing activities during each phase of construction, per the Scheduling BMP (C 162). Seasonal Work Limitations From October 1 through April 30, clearing, grading, and other soil disturbing activities shall only be permitted if shown to the satisfaction of the local permitting authority that silt -laden runoff will be prevented from leaving the site through a combination of the following: ❑ Site conditions including existing vegetative coverage, slope, soil type, and proximity to receiving waters; and ❑ Limitations on activities and the extent of disturbed areas; and Page 11 of 21 ❑ Proposed erosion and sediment control measures. Based on the information provided and/or local weather conditions, the local permitting authority may expand or restrict the seasonal limitation on site disturbance. The following activities are exempt from the seasonal clearing and grading limitations: ❑ Routine maintenance and necessary repair of erosion and sediment control BMPs; ❑ Routine maintenance of public facilities or existing utility structures that do not expose the soil or result in the removal of the vegetative cover to soil; and ❑ Activities where there is 100 percent infiltration of surface water runoff within the site in approved and installed erosion and sediment control facilities. Coordination with Utilities and Other Jurisdictions • Care has been taken to coordinate with utilities, other construction projects, and the local jurisdiction in preparing this SWPPP and scheduling the construction work. Inspection and Monitoring • All BMPs shall be inspected, maintained, and repaired as needed to assure continued performance of their, intended function. Site inspections shall be conducted by a Certified Erosion and Sediment Control Lead. The contractor's CESCL: ❑ Shall be on-site or on-call at all times ❑ Assess the site conditions and construction activities that could impact the quality of stormwater, and ❑ Assess the effectiveness of erosion and sediment control measures used to control the quality of stormwater discharges. • Contractor shall maintain a Certified Erosion and Sediment Control Lead (CESCL) on staff. In the event that work by the Contractor occurs during hours other than first shift, Monday through Friday, and a storm event occurs, the Contractor's CESCL shall be available and shall inspect all BMPs and all stormwater discharge from the site within 24 hours of any discharge. t. n n LJ • Contractor shall attend one weekly site review with Boeing Everett Environmental affairs at a mutually agreed upon time. Required corrections as related to construction site stormwater management or maintenance or BMPs, or adaptive management of BMPs identified by Environmental Affairs, will be related to Contractor through or in conjunction with Boeing Site L Services for immediate action. r • Whenever inspection and/or monitoring reveals that the BMPs identified in this SWPPP are inadequate, due to the actual discharge of or potential to discharge a significant amount of any pollutant, appropriate BMPs or design changes shall be implemented as soon as possible. Page 12 of 21 • Contractor shall maintain and repair all BMPs as necessary to insure their effectiveness, whether the necessity for such repair is identified by Environmental Affairs or self -identified. If Contractor identifies the need to modify/update/change/remove the BMPs described in the SWPPP and agreed upon between the Contractor and Environmental Affairs, Contractor shall obtain authorization from Environmental Affairs for the modification. Maintaining an Updated Construction SWPPP • This SWPPP shall be retained on-site or within reasonable access to the site. • The SWPPP shall be modified whenever there is a change in the design, construction, operation, or maintenance at the construction site that has, or could have, a significant effect on the discharge of pollutants to waters of the state. • The SWPPP shall be modified if, during inspections or investigations conducted by the owner/operator, or the applicable local or state regulatory authority, it is determined that the SWPPP is ineffective in eliminating or significantly minimizing pollutants in stormwater discharges from the site. The SWPPP shall be modified as necessary to include additional or modified BMPs designed to correct problems identified. Revisions to the SWPPP shall be completed within seven (7) days following the inspection. 3.2 Site Specific BMPs Site specific BMPs are shown on the TESC Plan Sheets and Details/Calculations in Appendix A. These site specific plan sheets will be updated regularly. Page 13 of 21 4.0 Construction Phasing and BMP Implementation The BMP implementation schedule will be driven by the construction schedule. The following provides a sequential list of the proposed construction schedule milestones and the corresponding BMP implementation schedule. The list contains key milestones such as wet season construction. LJ n The BMP implementation schedule listed below is keyed to proposed phases of the construction project, and reflects differences in BMP installations and inspections that relate to wet season construction. The project site is located west of the Cascade Mountain Crest. As such, the dry season is considered to be from May 1 to September 30 and the wet season is considered to be from October 1 to April 30. The project schedule is included in this SWPPP as Appendix F. In addition, Appendix A includes aerial photographs of the project site that shows the locatons of the construction activities. The BMPs listed in Section 3 will be implemented for each integrated project phase. Generally, BMPs will be employed in the following order: — Install catch basin protection — Delineate work area with high visibility fencing — Install silt fence (if used) and interceptor dikes/swales, asphalt curbing and sand bags — Install construction entrance and implement sweeping — Install additional erosion control measures for grading as prescribed — Cover stockpiles (if used) — Contain sawcutting slurry as prescribed — Stabilize areas within project area — Periodically monitor and inspect BMPS as required herein. n L n f`' Page 14 of 21 C C C 0 c C 0 0 c C C e 5.0 Pollution Prevention Team 5.1 Roles and Responsibilities The pollution prevention team consists of personnel responsible for implementation of the SWPPP, including the following: ❑ Certified Erosion and Sediment Control Lead (CESCL) — primary contractor contact, responsible for site inspections (BMPs, visual monitoring, sampling, etc.); to be called upon in case of failure of any ESC measures. ❑ Project Administrator: site representative for the owner that is the project's supervisor responsible for issuing instructions and drawings to the contractor's site supervisor or representative ❑ Emergency Ecology Contact — individual to be contacted at Ecology in case of emergency. Go to the following website to get the name and number for the Ecology contact information: http://www.ecy.wa.gov/org.html. ❑ Emergency Owner Contact — individual that is the site owner or representative of the site owner to be contacted in the case of an emergency. ❑ Non -Emergency Ecology Contact — individual that is the site owner or representative of the site owner than can be contacted if required. ❑ Monitoring Personnel — personnel responsible for conducting water quality monitoring; for most sites this person is also the Certified Erosion and Sediment Control Lead. 5.2 Team Members Names and contact information for those identified as members of the pollution prevention team are provided in the following table. Title Name(s) Phone Number Contractor's Certified Erosion and Sediment Control Lead (CESCL) Mark Marcell, CGI 206-718-5501 EHS Certified Erosion and Sediment Control Lead (CESCL) TBD TBD Construction Manager Mark Marcell, CGI 206-718-5501 Emergency Ecology Contact Northwest Regional Office Spill Notification (425) 649-7000 Emergency Owner Contact Jeff Collins (425) 210-8273 Non -Emergency Ecology Contact Northwest Regional Office (425) 649-7098 Monitoring Personnel Aparna Kar (425) 210-9804 Additional Inspection Personnel Dylan Gray (425) 622-7901 Page 15 of 21 6.0 Site Inspections and Monitoring Monitoring includes visual inspection, monitoring for water quality parameters of concern, and i J documentation of the inspection and monitoring findings in a site log book. A site log book will be maintained for all on-site construction activities and will include: 1 ❑ A record of the implementation of the SWPPP and other permit requirements; ❑ Site inspections; and, I ❑ Stormwater quality monitoring. SL For convenience, the inspection form and water quality monitoring forms included in this SWPPP include the required information for the site log book. This SWPPP may function as the site log book if desired, or the forms may be separated and included in a separate site log book. However, if separated, the site log book but must be maintained on-site or within reasonable access to the site and be made available upon request to Ecology or the local jurisdiction. Stormwater monitoring will be performed during "regular business hours." "Regular business hours" for the purpose of sample collection is defined as first shift, Monday through Friday. The following factors were taken into account for defining regular business hours: • The trained sampling staff is assigned to first shift. • The Environmental Engineer/Scientist stormwater support is assigned to first shift • Sampling during first shift allows samples to arrive at the lab within the required holding times. • The sample locations are not well lit and may present other unsafe conditions. Sampling during daylight hours will reduce unsafe conditions. 6.1 Site Inspection All BMPs will be inspected, maintained, and repaired as needed to assure continued performance of their intended function. The inspector will be a Certified Erosion and Sediment Control Lead (CESCL) per BMP C160. The name and contact information for the CESCL is provided in Section 5 of this SWPPP. Site inspection will occur in all areas disturbed by construction activities and at all stormwater discharge points. Stormwater will be examined for the presence of suspended sediment, turbidity, discoloration, and oily sheen. The site inspector will evaluate and document the effectiveness of the installed BMPs and determine if it is necessary to repair or replace any of the BMPs to improve the quality of stormwater discharges. All maintenance and repairs will be documented in the site log book or forms provided in this document. All new BMPs or design changes will be documented in the SWPPP as soon as possible. Page 16 of 21 P L P LJ n 6.1.1 Site Inspection Frequency Site inspections will be conducted at least once a week and within 24 hours following any discharge from the site. For sites with temporary stabilization measures, the site inspection frequency can be reduced to once every month. 6.1.2 Site Inspection Documentation The site inspector will record each site inspection using the site log inspection forms provided in Appendix E. The site inspection log forms may be separated from this SWPPP document, but will be maintained on-site or within reasonable access to the site and be made available upon request to Ecology or the local jurisdiction. 6.2 Stormwater Quality Monitoring 6.2.1 Turbidity Sampling Monitoring requirements for the proposed project will include either turbidity sampling to monitor site discharges for water quality compliance with the 2005 Construction Stormwater General Permit (Appendix D). Sampling will be conducted at all discharge points at least once per calendar week. Turbidity monitoring will follow the analytical methodologies described in Section S4 of the 2005 Construction Stormwater General Permit (Appendix D). The key benchmark value that requires action is 25 NTU for turbidity. If the 25 NTU benchmark for turbidity is exceeded, the following steps will be conducted: 1. Ensure all BMPs specified in this SWPPP are installed and functioning as intended. 2. Assess whether additional BMPs should be implemented, and document revisions to the SWPPP as necessary. 3. Sample discharge location daily until the analysis results are less than 25 NTU ni (turbidity) or greater than 32 cm (transparency). If the turbidity is greater than 25 NTU but less than 250 NTU for more than 3 days, additional treatment BMPs will be implemented within 24 hours of the third consecutive sample that exceeded the benchmark value. Additional treatment BMPs to be considered will include, but are not limited to, off-site treatment, infiltration, filtration and chemical treatment. If the 250 NTU benchmark for turbidity (or less than 6 cm transparency) is exceeded at any time, the following steps will be conducted: 1. Notify Ecology by phone within 24 hours of analysis (see Section 5.0 of this SWPPP for contact information). Page 17 of 21 n 1 r fl 2. Continue daily sampling until the turbidity is less than 25 NTU (or transparency is greater than 32 cm). 3. Initiate additional treatment BMPs such as off-site treatment, infiltration, filtration and chemical treatment within 24 hours of the first 250 NTU exceedance. n 4. Implement additional treatment BMPs as soon as possible, but within 7 days of the first 250 NTU exceedance. 5. Describe inspection results and remedial actions taken in the site log book and in monthly discharge monitoring reports as described in Section 7.0 of this SWPPP. 6.2.2 PH Sampling Stormwater runoff will be monitored for pH starting on the first day of any activity that includes more than 40 yards of poured or recycled concrete, or after the application of "Engineered Soils" such as, Portland cement treated base, cement kiln dust, or fly ash. This does not include fertilizers. For concrete work, pH monitoring will begin the first day that concrete is poured and continue until three weeks after the last pour. For engineered soils, the pH monitoring period begins when engineered soils are first exposed to precipitation and continue until the area is fully stabilized. Stormwater samples will be collected at least weekly from all points of discharge from the site and measured for pH using a calibrated pH meter, pH test kit, or wide range pH indicator paper. If the measured pH is 8.5 or greater, the following steps will be conducted: L r 1. Prevent the high pH water from entering storm drains or surface water. 2. Adjust or neutralize the high pH water if necessary using appropriate technology such as CO2 sparging (liquid or dry ice). r--- 3. 3. Contact Ecology if chemical treatment other than CO2 sparging is planned. 4. Assess whether additional BMPs should be implemented and whether associated n, revisions to the SWPPP are necessary. 5. Stop (detain) all discharges from leaving the site and entering external surface waters. 6. Sample sedimentation pond the following day, and if the pH exceeds 8.5 for the second consecutive day, implement CO2 sparging treatment. 7. Sample and measure pH daily until there are three (3) consecutive pH measurements less than 8.5. n 8. If there are three (3) consecutive pH measurements greater than 8.5, notify i Ecology by phone within 24 hours of the 3rd measurement exceeding a pH of 8.5 (see Section 5.0 of the SWPPP for contact information) and intitiate discussion with Ecology regarding additional treatment BMPs. �I Page 18 of 21 1 i 1 1 1 1 1 1 9. Describe inspection results and remedial actions that are taken in the site log book and in monthly discharge monitoring reports as described in Section 7.0 of the SWPPP. Page 19 of 21 7.0 Reporting and Recordkeeping 7.1 Recordkeeping 7.1.1 Site Log Book A site log book will be maintained within reasonable access to the site in the Environmental Affairs' office (building 40-23 2nd Floor) and will include: • A record of the implementation of the SWPPP and other permit requirements; • Site inspections; and, • Stormwater quality monitoring. For convenience, the inspection form and water quality monitoring forms included in this SWPPP include the required information for the site log book. A site log book including inspections of erosion and sediment control measures and water quality monitoring results will be kept as an attachment in the SWPPP. Ecology created site inspection forms will utilized for the inspections. 7.1.2 Records Retention Records of all monitoring information (site log book, inspection reports/checklists, etc.), this Stormwater Pollution Prevention Plan, and any other documentation of compliance with permit requirements will be retained during the life of the construction project and for a minimum of three years following the termination of permit coverage in accordance with permit condition S5.C. 7.1.3 Access to Plans and Records The SWPPP, General Permit, Notice of Authorization letter, and Site Log Book will be retained on site or within reasonable access to the site and will be made immediately available upon request to Ecology or the local jurisdiction. A copy of this SWPPP will be provided to Ecology within 14 days of receipt of a written request for the SWPPP from Ecology. Any other information requested by Ecology will be submitted within a reasonable time. A copy of the SWPPP or access to the SWPPP will be provided to the public when requested in writing in accordance with permit condition S5.G. 7.1.4 Updating the SWPPP In accordance with Conditions S3, S4.B, and S9.B.3 of the General Permit, this SWPPP will be modified if the SWPPP is ineffective in eliminating or significantly minimizing pollutants in Page 20 of 21 n n fl E stormwater discharges from the site or there has been a change in design, construction, operation, or maintenance at the site that has a significant effect on the discharge, or potential for discharge, of pollutants to the waters of the State. The SWPPP will be modified within seven days of determination based on inspection(s) that additional or modified BMPs are necessary to correct problems identified, and an updated timeline for BMP implementation will be prepared. 7.2 Reporting 7.2.1 Discharge Monitoring Reports Water quality sampling results will be submitted to Ecology monthly on Discharge Monitoring Report (DMR) forms in accordance with permit condition S5.B. If there was no discharge during a given monitoring period, the form will be submitted with the words "no discharge" entered in place of the monitoring results. If a benchmark was exceeded, a brief summary of inspection results and remedial actions taken will be included. If sampling could not be performed during a monitoring period, a DMR will be submitted with an explanation of why sampling could not be performed. 7.2.2 Notification of Noncompliance If any of the terms and conditions of the permit are not met, and it causes a threat to human health or the environment, the following steps will be taken in accordance with permit section S5.F: 1. Ecology will be immediately notified of the failure to comply. 2. Immediate action will be taken to control the noncompliance issue and to correct the problem. If applicable, sampling and analysis of any noncompliance will be repeated immediately and the results submitted to Ecology within five (5) days of becoming aware of the violation. 3. A detailed written report describing the noncompliance will be submitted to Ecology within five (5) days, unless requested earlier by Ecology. Any time turbidity sampling indicates turbidity is 250 nephelometric turbidity units (NTU) or greater or water transparency is 6 centimeters or less, the Ecology regional office will be notified by phone within 24 hours of analysis as required by permit condition S5.A (see Section 5.0 of this SWPPP for contact information). In accordance with permit condition S4.F.6.b, the Ecology regional office will be notified if chemical treatment other than CO2 sparging is planned for adjustment of high pH water (see Section 5.0 of this SWPPP for contact information). 7.2.3 Permit Application and Changes In accordance with permit condition S2.A, a complete application form will be submitted to Ecology and the appropriate local jurisdiction (if applicable) to be covered by the General Permit. Page 21 of 21 Appendix A- Site Plans n n n n U L 1J n n 1J S n I U C n L$ 09-150 Building Demolition Vicinity MAP N JJt114y V V Boeing Military Flight Center yt�n�St •o?rh S. S Pilgr,rn St S Noy St sµ°tafi'St 0 Unified Grocers 'y 9� 9 s cd Q 64 �°IP/44\ 3 m QZJ co d4 6, i h N z 20Th Ave S g▪ . 0 0 0 co v co P T. V1 N O 75 S11i11,r, Sii2tnSt S112thSt ® i ti II Pizza Hut 0 e.0 S. . co a .. Vr, DUWAMISH m co S QOCIr1G ACCCSS tel Du 'arnrsh Hill Pr • .erve S 11S, st t 11:0h St S tttrh Sr .s t U S Nig t(Jic St 5 PROJECT SITE June 29th, 2017 ABBREVIATIONS MISC. REFERENCE SYMBOLS THROUGHOUT THE PLANS ARE ABBREVIATIONS WHICH ARE IN COMMON USE. THE LIST OF ABBREVIATIONS PROVIDED IS NOT INTENDED TO BE COMPLETE OR REPRESENTATIVE OF CONDITIONS OR MATERIALS ACTUALLY USED ON THE PROJECT. THE TECHNICAL REPRESENTATIVE WILL DEFINE THE INTENT OF ANY ABBREVIATION IN QUESTION. ABAN AC ADJ AIR ANSI APPROX ASPH ASTM BIGD BLDG BM BMP BAT CB CHR CHS CL CM CMP COL CONC CONE CONN CY CW DEMO DIA DIP DOE DMA DW EA EL, ELEV EX FH FIRE FF FG FUTR GAS CV HMA HORIZ ID IE IW LF MAX MH MIN MON N/A NAD NGVD NOM NO. OD OSHA PREFAB PCC PVC PVMT QTY RAD REINF SD SDCO SDFM SDMH SF, SQ FT SHT SPEC SS SSW SOS STA STS STD STM SYM TAN TEMP TOP TYP UGP VERT VOL VS W, WTR WSDOT W/ W/0 AND AT APPROXIMATELY ABANDON ASPHALT CONCRETE ADJUST (-ED,-MENT,-ABLE) COMPRESSED AIR AMERICAN NATIONAL STANDARD INSTITUTE APPROXIMATE (-ED, -IVE) ASPHALT AMERICAN SOCIETY FOR TESTING AND MATERIALS BELOW INLET GRATE DEVICE BUILDING BENCH MARK BEST MANAGEMENT PRACTICE BOTTOM CATCH BASIN CHILLED RETURN CHILLED SERVICE CENTERLINE CONSTRUCTION MANAGER/MANAGEMENT CORRUGATED METAL PIPE COLUMN CONCRETE CONDENSATE CONNECTION CUBIC YARD CHILLED WATER DEMOLISH OR DEMOUTION DIAMETER DUCTILE IRON PIPE DEPARTMENT OF ECOLOGY DRAIN DOMESTIC WATER EACH ELEVATION EAST EXISTING FIRE HYDRANT FIRE SUPPRESSION MAIN FINISH FLOOR FINISH GRADE FOR FUTURE USE GAS GATE VALVE HOT MIX ASPHALT HORIZONTAL INSIDE DIAMETER/DIMENSION INVERT ELEVATION INVERT LINEAR FEET MAXIMUM MANHOLE MINIMUM; MINUTE MONUMENT NORTH/NEUTRAL NOT APPUCABLE NORTH AMERICAN DATUM NATIONAL GEODETIC VERTICAL DATUM NOMINAL NUMBER OUTSIDE DIAMETER OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION PREFABRICATED PORTLAND CEMENT CONCRETE POLY VINYL CHLORIDE PAVEMENT QUANTITY RADIUS REINFORCED SOUTH, SLOPE STORM DRAIN STORM DRAIN CLEAN OUT STORM DRAIN FORCE MAIN STORM DRAIN MANHOLE SQUARE FOOT/FEET SHEET SPECIFICATIONS SANITARY SEWER/STAINLESS STEEL SANITARY SEWER CLEANOUT SANITARY SIDE SEWER STATION STORM SEWER STANDARD STEAM SYMMETRICAL TANGENT TEMPORARY TOP OF PAVEMENT TYPICAL UNDERGROUND POWER VERTICAL VOLUME VERSUS WEST/WATER WASHINGTON STATE DEPARTMENT OF TRANSPORTATION WITH WITHOUT DETAIL NUMBER C3 -DE C5QO �� DRAWING NUMBER WHERE SHOWN DRAWING NUMBER WHERE TAKEN SYM SECTION LETTER DRAWING NUMBER WHERE SHOWN REVISION TA APPROVED / BOAT NOTE DESCRIBING SPECIFIC FEATURE THAT WILL REMAIN ON THE DRAWINGS AFTER CONSTRUCTION FOR FUTURE REFERENCE FUG NOTE FOR SPECIFIC CONSTRUCTION DIRECTION PROJECT NOTES 1. NO BOUNDARY WORK WAS PERFORMED, HOWEVER, A TOPOGRAPHIC SURVEY WAS PREPARED BY AXIS SURVEY AND MAPPING ON MARCH 9TH, 2017. 2. THE HORIZONTAL DATUM USED FOR THIS PROJECT IS WASHINGTON STATE (GRID) COORDINATES, NORTH ZONE NAD 83/91 GPS 2011 SMARTNET NORTH AMERICA AND SHALL BE TIED TO ANY TWO CITY OF TUKWILA HORIZONTAL CONTROL MONUMENTS. 3. THE VERTICAL DATUM USED FOR THESE PLANS IS NAVD '88 PER GPO 2011 SMARTNET NORTH AMERICA. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL TRAFFIC CONTROL ON-SITE AND SHALL COORDINATE HIS ACTIVITIES WITH THE OWNER AND ENGINEER A MINIMUM OF TWO (2) WEEKS IN ADVANCE OF THE BEGINNING OF WORK. THE CONTRACTOR IS RESPONSIBLE FOR PROVIDING ALL TRAFFIC CONTROL SIGNS. SAFE VEHICULAR AND PEDESTRIAN ACCESS SHALL BE PROVIDED AT ALL TIMES DURING CONSTRUCTION. SHUTDOWN OF OWNER OPERATION OR ACCESS WILL NOT BE PERMITTED. A MINIMUM OF ONE LANE SHALL REMAIN OPEN AT ALL TIMES DURING CONSTRUCTION. CONTRACTOR SHALL PROVIDE TRAFFIC CONTROL AND STREET MAINTENANCE PLAN FOR PUBLIC WORKS APPROVAL BEFORE IMPLEMENTATION. 5. THE LOCATION OF ALL UTIUTIES SHOWN ON THIS PLAN IS APPROXIMATE. THE CONTRACTOR SHALL VERIFY THE EXISTING UNLTDES PRIOR TO EXCAVATION. TO LOCATE UNLTIIES, CALL THE UNDERGROUND LOCATE LINE "CALL BEFORE YOU DIG" NUMBER 811. 6. WHERE CONFLICTS OCCUR BETWEEN EXISTING FEATURES AND THE PLACEMENT OF NEW FACILITES, THEY SHALL BE BROUGHT TO THE ATTENTION OF THE ENGINEER BY THE CONTRACTOR, AND WILL BE RESOLVED BY THE ENGINEER. 7. THE CONTRACTOR FOR THIS PROJECT SHALL MAINTAIN A CLEAN, LEGIBLE SET OF THESE PLANS AND NOTE ALL DEVIATIONS THEREON. UPON COMPLETION OF CONSTRUCTION, THESE DRAWINGS SHALL BE DELIVERED TO THE ENGINEER FOR THE PREPARATION OF RECORD DRAWINGS. 8. THE CONTRACTOR SHALL HAVE THE FOLLOWING DOCUMENTS AT THE JOB SITE AT ALL TIMES DURING CONSTRUCTION: 8.1. CURRENT COPY OF WASHINGTON STATE DEPARTMENT OF TRANSPORTATION (WSDOT) STANDARD PLANS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION (PUBLICATION 822-01) 8.2. 2016 EDITION OF WASHINGTON STATE DEPARTMENT OF TRANSPORTATION (WSDOT) STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION (PUBLICATION M41-10) 8.3. FOURTH EDITION (2010) CITY OF TUKWILA PUBLIC WORKS DEPARTMENT INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS 9. THE CONTRACTOR SHALL PROVIDE ALL NECESSARY EQUIPMENT TO PREVENT IJSUTY INTERRUPTION. NOTIFY THE BOEING COMPANY ONE WEEK IN ADVANCE OF EACH UTILITY CONNECTION. 10. PRIOR TO BIDDING, IT SHALL BE THE CONTRACTORS RESPONSIBILITY TO MAKE ALL NECESSARY SITE INSPECTIONS AND DETERMINATIONS OF ITEMS AND QUANTITIES OF WORK TO ENSURE THAT ALL ITEMS OF WORK NECESSARY TO PERFORM A COMPLETE AND ACCEPTABLE JOB HAVE BEEN TAKEN INTO CONSIDERATION. 11. BOEINGS SINGLE POINT CONTACT THROUGHOUT THE PROJECT WILL BE BOEING'S CONSTRUCTION ADMINISTRATOR: GABRIEL HESS PROJECT & CONSTRUCTION MANAGEMENT PHONE: 206-316-7870 EMAIL GABRIELHESSOBOEING.COM GENERAL NOTES 1. THE CONTRACTOR ASSUMES SOLE RESPONSIBILITY FOR WORKER SAFETY, FOR SAFETY AND COMPLIANCE WITH ALL AGENCY RULES AND REGULATIONS, AND FOR REPAIRING DAMAGE TO STRUCTURES AND IMPROVEMENTS RESULTING FROM CONSTRUCTION OPERATIONS. 2. THE CONTRACTOR SHALL HAVE THE APPROVED PLANS AND A CURRENT COPY OF CITY OF TUKWILA DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS AVAILABLE AT THE JOB SAC. ALL METHODS AND MATERIALS SHALL MEET CRY OF TUKWILA DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS, UNLESS OTHERWISE APPROVED BY THE PUBLIC WORKS DIRECTOR.. 3. ALL WORK SHALL CONFORM TO THESE APPROVED DRAWINGS. ANY CHANGES FROM THE APPROVED PLANS REQUIRE PRE -APPROVAL FROM THE OWNER AND THE ENGINEER. 4. ALL GOVERNMENTAL SAFETY REGULATIONS SHALL BE STRICTLY ADHERED TO, INCLUDING OSHA, WISHA, AND THE WASHINGTON DEPARTMENT OF LABOR AND INDUSTRY. 5. CONTRACTOR SHALL MAINTAIN A CURRENT SET OF RECORD DRAWINGS ON-SITE. CONTRACTOR SHALL PROVIDE RECORD DRAWINGS TO ENGINEER PRIOR TO PROJECT FINAL APPROVAL 6. ALL SURVEYING SHALL BE DONE UNDER THE DIRECTION OF A WASHINGTON LICENSED LAND SURVEYOR. FOR PROJECTS WITHIN A FLOOD CONTROL ZONE, THE PERMITTEE SHALL PROVIDE CONVERSION CALCULATIONS TO NGVD 1929. 7. CONTRACTOR SHALL REPLACE OR RELOCATE ALL SIGNS DAMAGED OR REMOVED DUE TO CONSTRUCTION. H. CONTRACTOR SHALL RETAIN, REPLACE, OR RESTORE EXISTING VEGETATION IN RIGHTS-OF-WAY, EASEMENTS, AND ACCESS TRACTS. 9. ALL AREAS THAT CONTAIN IMPROVEMENTS DISTURBED BY THE CONSTRUCTION PROCESS SHALL BE RESTORED TO A CONDITION EQUAL TO OR BETTER THAN WAS PRESENT PRIOR TO CONSTRUCTION. 10. THE CONTRACTOR SHALL NOTIFY THE ENGINEER IN THE EVENT OF DISCOVERY OF POOR SOILS, STANDING GROUND WATER, OR DISCREPANCIES FROM THE PLANS IN GRADES, LOCATIONS AND CONSTRUCTION OF UTILITIES, STRUCTURES, AND OTHER EXISTING CONDITIONS. 11. CONTRACTOR SHALL PROVIDE, INSTALL AND MAINTAIN A TEMPORARY CHAIN LINK PERIMETER FENCE AROUND THE DEMOLITION AREA PRIOR TO UTIUTIES DISCONNECT. WHERE POSSIBLE, MAINTAIN A MINIMUM OF 20 FEET CLEAR AROUND THE BUILDING FOR FIRE PROTECTION. AT ALL TIMES THE CONTRACTOR SHALL MAINTAIN SIGNS AND TEMPORARY CHAIN LINK FENCING TO ENSURE CONTINUOUS PROTECTION OF THE PUBLIC MD TO PREVENT UNAUTHORIZED ENTRY TO THE CONSTRUCTION AREA. AT A MINIMUM FENCING SHALL BE 6.0 FEET HIGH. DATE SYM REVISION NY APPROVED GENERAL NOTES (Continued) 12. CONTRACTOR SHALL OBTAIN A BOEING FIRE DEPARTMENT PERMIT BEFORE STARTING ANY FIRE, WELDING, FLAME OR SPARK PRODUCING OPERATIONS. OBTAIN NEW PERMITS FOR EACH CRAFT, FOR EACH SHIFT DAILY BY CALLING 206.655.8800, GIVING LOCATION. 13. CONTRACTOR SHALL COMPLY WITH ALL SAFETY REGULATIONS AND CODES PERTAINING TO HANDLING AND STORAGE OF FUEL 14. CONTRACTOR SHALL COORDINATE SHUT-OFF OF FIRE MAINS WITH CONSTRUCTION MANAGER. CONTRACTOR SHALL SCHEDULE WORK TO MINIMIZE DOWN TIME. CONTRACTOR SHALL NOTIFY CONSTRUCTION MANAGER AT LEAST 1 WEEK IN ADVANCE OF SHUT OFF. CONTRACTOR SHALL OBTAIN WRITTEN APPROVAL OF SHUT OFF. 15 16 TOBACCO PRODUCTS AND/OR SMOKING IS PROHIBITED WITHIN BUILDINGS OR ON BOEING PROPERTY. CONTRACTOR SHALL NOT PERMIT CONCENTRATIONS OF DUST AND FUMES TO REACH LEVELS THAT ARE HAZARDOUS TO HEALTH OR A POTENTIAL FIRE OR EXPLOSION HAZARD. 17. INTERRUPTION TO UTILITY SERVICES SUCH AS (BUT NOT LIMITED TO) WATER, SANITARY SEWER, ELECTRICITY, COMMUNICATIONS, HEATING AND AIR CONDITIONING SYSTEMS, SHALL OCCUR AT SUCH TIMES AS PERMITTED BY BOEING SO THAT INTERRUPTION OF SUCH SERVICES WILL NOT INTERFERE WITH BOEING OPERATIONS, NOR THAT OF SURROUNDING PROPERTIES. CONTRACTOR SHALL NOT PROCEED WITH WORK AFFECTING UTILITIES WITHOUT THE PRIOR WRITTEN APPROVAL INCLUDING SCHEDULE APPROVAL BY BOEING CONSTRUCTION MANAGER. GENERALLY, SUCH OUTAGES OR DISRUPTION OF UTILITY SERVICE SHALL OCCUR AND/OR BE CAUSED BY THE CONTRACTOR ONLY ON SATURDAYS, SUNDAYS OR OTHER BOEING NON -WORK DAYS OR OTHER PERIODS AS APPROVED BY THE BOEING CONSTRUCTION MANAGER AT NO ADDITIONAL COST TO THE BOEING CO. 18. WATER AND ELECTRICAL UTILITIES FOR CONSTRUCTION ACTMTIES SHALL BE PROVIDED BY BOEING. 19. CARE MUST BE TAKEN TO PREVENT THE SPREAD OF DUST AND FLYING PARTICLES. 20. ASBESTOS CONTAINING MATERIALS (ACM) HAVE BEEN IDENTIFIED AND QUANTIFIED BY BOEING. REMOVAL DRAWINGS FOR THE ASBESTOS CONTAINING MATERIAL WILL BE PRODUCED BY BOEING. ALL ASBESTOS -CONTAINING MATERIAL FROM THE 09-150 BUILDING SHALL BE REMOVED AND DISPOSED BY THE CONTRACTOR IN ACCORDANCE WITH NVL LABORATORIES HAZMAT REPORT. ASBESTOS ABATEMENT, MUST BE APPROVED BY PUGET SOUND CLEAN AIR AGENCY PRIOR TO DEMOLITION, CONTRACTOR IS RESPONSIBLE FOR OBTAINING ALL PERMITS FROM THIS AGENCY. 21. CONTRACTOR TO COORDINATE WITH BOEING TO IDENTIFY AND DEFINE ALL HAZARDOUS MATERIALS. ALL HAZARDOUS MATERIALS SHALL BE REMOVED BY THE CONTRACTOR TO BOEING PROVIDED CONTAINERS. BOEING TO DISPOSE OF ALL HAZARDOUS MATERIALS. 22. CONTRACTOR SHALL RECYCLE ALL MATERIALS THAT ARE ECONOMICALLY FEASIBLE. 23. CONTRACTOR SHALL ASSURE THAT ALL NECESSARY PERMITS HAVE BEEN OBTAINED PRIOR TO COMMENCING WORK, INCLUDING DEMOLITION AND GRADING (BY BOEING). CONTRACTOR SHALL COORDINATE PERMITTING WITH BOEING CONSTRUCTION MANAGER AND PROVIDE COPIES OF ALL PERMITS. 24. ALL UTILITIES AND SERVICES INCLUDING BUT NOT UMITED TO GAS, WATER, HOT WATER, CHILLED WATER, FIRE MAINS, ELECTRIC, SANITARY AND STORM SEWER. TELEPHONE, CABLE, FIBER OPTIC CABLE, ETC. WITHIN THE UNITS OF DISTURBANCE SHALL BE DEFINED AND VERTICALLY AND HORIZONTALLY LOCATED. PROVIDE BOEING ANY DRAWINGS DEPICTING UTILITIES ON PARCEL THAT WERE FIELD LOCATED SUCH AS POTHOLE DRAWINGS. 25. THE CONTRACTOR SHALL USE AND COMPLY WITH THE REQUIREMENTS OF THE APPUCABLE UTILITY NOTIFICATION SYSTEM TO LOCATE ALL THE UNDERGROUND UTILITIES. 26. IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO REVIEW ALL OF THE DRAWINGS AND SPECIFICATIONS ASSOCIATED WITH THE PROJECT WORK SCOPE PRIOR TO THE INITIATION OF CONSTRUCTION. SHOULD THE CONTRACTOR FIND A CONFLICT WITH THE DOCUMENTS RELATIVE TO THE SPECIFICATIONS OR THE RELATIVE CODES, IT IS THE CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE BOEING CONSTRUCTION MANAGER AND COFFMAN ENGINEERS IN WRITING PRIOR TO THE START OF CONSTRUCTION. 27. THE CONTRACTOR IS RESPONSIBLE TO PROTECT AND MAINTAIN ALL ACTIVE UTILITY SYSTEMS OR SERVICES THAT ARE NOT BEING REMOVED AND/OR RELOCATED DURING SITE ACTMIY. THE CONTRACTOR IS RESPONSIBLE FOR REPAIRS OF DAMAGE AND/OR REPLACEMENT AS A RESULT OF CONSTRUCTION ACTIVITY TO ANY EXISTING FEATURES THAT ARE TO REMAIN AND/OR UTILITY SYSTEMS AT NO COST TO THE OWNER. DEMOLITION NOTES 1. REMOVE ALL DELETERIOUS MATERIAL FOUND ON-SITE INCLUDING VEGETATION, SCRAP WOOD, TRASH, ETC. AND DISPOSE OF AT AN APPROVED OFF-SITE LOCATION. 2. THE CONTRACTOR SHALL NOT DAMAGE OR CAUSE TO BE DAMAGED ANY STRUCTURES, PARKING LOTS, DRIVES, STREETS, SIDEWALKS, UTILITIES, LAWNS, AREA OUTSIDE OF DEMOLITION LIMITS AS SHOWN ON THE PLANS OR ANY OTHER PROPERTY ADJACENT TO PARCELS RELEASED FOR DEMOLITION WHETHER OR NOT THE PROPERTY IS SCHEDULED FOR FUTURE DEMOLITION. CONTRACTOR SHALL CONFIRM THE DEMOLITION AND WORK LIMITS WITH THE BOEING CONSTRUCTION MANAGER. DAMAGE TO ANY PROPERTY INCLUDING, BUT NOT UNITED TO, BUILDINGS, UTILITIES, VEHICLES, FENCING, OR LANDSCAPING AS A RESULT OF CONTRACTORS ACTIVITIES WILL BE REPAIRED OR REPLACED AT THE CONTRACTORS EXPENSE. 3. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE PROTECTION OF ALL EXISTING SURVEY MONUMENTS AND OTHER SURVEY MARKERS DURING CONSTRUCTION. ALL SUCH MONUMENTS OR MARKERS DESTROYED DURING CONSTRUCTION SHALL BE REPLACED AT THE CONTRACTOR'S EXPENSE TO ORIGINAL LOCATION AND ELEVATION. 4. THE CONTRACTOR IS FINANCIALLY RESPONSIBLE FOR THE MAINTENANCE OR REPAIR OF OFF-SITE AND ON-SITE PAVED SURFACES WHERE DAMAGE HAS BEEN SUSTAINED BECAUSE OF CONSTRUCTION TRAFFIC. 5. ALL CONCRETE, PAVEMENT, CURBS, SIDEWALKS, AND RAMPS INDICATED TO BE REMOVED OR REPLACED SHALL BE REMOVED TO THE NEAREST JOINT AS IDENTIFIED DURING CONSTRUCTION. WHERE THIS IS NOT POSSIBLE DUE TO CONFLICTS OR ADJACENT DAMAGED CONCRETE / ASPHALT, THE CONTRACTOR SHALL MAKE A FULL PAVEMENT DEPTH SAWCUT AT THE PROPOSED JOINT IN SOUND PAVEMENT. PROPOSED CONCRETE / ASPHALT SHALL EXTEND TO THE SAWCUT EDGE AND BE APPROPRIATELY JOINED / SEALED. 6. TO THE MAXIMUM EXTENT POSSIBLE, THE CONTRACTOR SHALL SALVAGE AND REUSE ALL CATCH BASIN FRAMES, GRATES, COVERS, MANHOLE UDS, AND ANY OTHER EXISTING METAL WORKS IN PAVEMENTS DESIGNATED FOR REMOVAL / REPLACEMENT. DATE DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.02.17 BOE//V6® GRADING AND EROSION CONTROL NOTES 1. ON-SITE EROSION MEASURES SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR. ANY PROBLEMS OCCURRING BEFORE FINAL ACCEPTANCE OF THE STORM SYSTEM BY THE OWNER SHALL BE CORRECTED BY THE CONTRACTOR. 2. IN CASE EROSION OR SEDIMENTATION OCCURS ON ADJACENT PROPERTY, ALL CONSTRUCTION WORK WITHIN THE DEVELOPMENT THAT WILL AGGRAVATE THE SITUATION MUST CEASE AND THE CONTRACTOR SHALL IMMEDIATELY COMMENCE RESTORATION OR MITIGATION METHODS. RESTORATION ACTIVITY WILL CONTINUE UNTIL SUCH TIME AS THE PROBLEM IS RECTIFIED. 3. SHOULD THE TEMPORARY EROSION AND SEDIMENTATION CONTROL MEASURES AS SHOWN ON THESE DRAWINGS NOT PROVE ADEQUATE TO CONTROL EROSION AND SEDIMENTATION, THE CONTRACTOR SHALL INSTALL HAY BALES, LOOSE STRAW, SILT FENCE, OR ADDITIONAL FACILITIES AS NECESSARY TO PROTECT ADJACENT PROPERTIES, SENSITIVE AREAS, NATURAL WATER COURSES AND/OR STORM DRAINAGE SYSTEMS. 4. IN ANY AREA WHICH HAS BEEN STRIPPED OF VEGETATION OR EXPERIENCED LAND DISTURBING ACTIVITIES AND WHERE NO FURTHER WORK IS ANTICIPATED FOR A PERIOD EXCEEDING 5 DAYS, ALL DISTURBED AREAS MUST BE IMMEDIATELY STABIUZED WITH MULCHING, GRASS, PLANING OR OTHER APPROVED EROSION CONTROL TREATMENT APPLICABLE TO THE TIME OF YEAR IN QUESTION. GRASS SEEDING ALONE WILL BE ACCEPTABLE ONLY DURING THE MONTHS OF APRIL THROUGH SEPTEMBER INCLUSIVE. SEEDING MAY PROCEED, HOWEVER, WHENEVER IT IS IN THE INTEREST OF THE CONTRACTOR, BUT MUST BE AUGMENTED WITH MULCHING. 5. THE CONTRACTOR'S LICENSED SURVEYOR WILL BE RESPONSIBLE FOR FIELD LOCATING THE CLEARING LIMITS AND ESTABLISHING THOSE BOUNDARIES WITH BRIGHT COLORED FLAGGING, PAINT, FENCING, OR OTHER VISIBLE MEANS. THE CONTRACTOR SHALL CLEAR TO THE UMITS AS ESTABLISHED ON THIS PLAN AND AS MARKED IN THE FIELD. 6. 7. 8. 9. 10. 11. ALL NECESSARY FACILITIES SHALL BE MAINTAINED ON-SITE TO PREVENT DEBRIS, DUST AND MUD FROM ACCUMULATING ON THE PUBLIC RIGHT-OF-WAY. BEFORE BEGINNING ANY CONSTRUCTION ACTMTIES, ESTABUSH THE CLEARING LIMITS, INSTALL CONSTRUCTION ENTRANCE, AND INSTALL EROSION PREVENTION AND SEDIMENT CONTROL MEASURES. BEFORE ANY GROUND DISTURBANCE OCCURS, ALL DOWNSTREAM EROSION PREVENTION AND SEDIMENT CONTROL MEASURES (ESC) MUST BE CONSTRUCTED AND IN OPERATION. INSTALL AND MAINTAIN ALL ESC MEASURES ACCORDING TO THE ESC PLAN. ESC MEASURES, INCLUDING ALL PERIMETER CONTROLS, SHALL REMAIN IN PLACE UNTIL FINAL SITE CONSTRUCTION IS COMPLETED AND PERMANENT STABIUZATION IS ESTABLISHED. FROM MAY 1 THROUGH SEPTEMBER 30, PROVIDE TEMPORARY AND PERMANENT COVER MEASURES TO PROTECT DISTURBED AREAS THAT WILL REMAIN UNWORKED FOR SEVEN DAYS OR MORE. FROM OCTOBER 1 THROUGH APRIL 30, PROVIDE TEMPORARY AND PERMANENT COVER MEASURES TO PROTECT DISTURBED AREAS THAT WILL REMAIN UNWORKED FOR 48 HOURS OR MORE. IN ADDITION TO COVER MEASURES. THE CONTRACTOR SHALL A. PROTECT STOCKPILES AND STEEP CUT AND FILL SLOPES IF UNWORKED FOR MORE THAN 12 HOURS. B. STOCKPILE, ON STTE, ENOUGH COVER MATERIALS TO COVER ALL DISTURBED AREAS. C. BY OCTOBER 8, SEED ALL AREAS THAT WILL REMAIN UNWORKED DURING THE WET SEASON (OCTOBER 1 THROUGH APRIL 30). MULCH ALL SEEDED AREAS. 12. DURING THE LIFE- OF THE PROJECT, THE PERMITTEE SHALL MAINTAIN IN GOOD CONDNION AND PROMPTLY REPAIR, RESTORE, OR REPLACE ALL GRADE SURFACES; WALLS, DRAINS, DAMS, STRUCTURES, VEGETATION, EROSION AND SEDIMENT CONTROL MEASURES, AND OTHER PROTECTIVE DEVICES IN ACCORDANCE WITH APPROVED PLANS. 13. 14. THE PERMITTEE SHALL MONITOR THE DOWNSTREAM DRAINAGE FUTURES, AND SHALL, WITH THE DIRECTOR'S APPROVAL REMOVE ALL SEDIMENT DEPOSITION RESULTING FROM PROJECT -RELATED WORK. ALL WORK PERFORMED SHALL BE PER APPROVED PLANS AND SPECIFICATIONS ONLY. THE PERMITTEE IS REQUIRED TO MAINTAIN A SET OF APPROVED PLANS AND SPECIFICATIONS AND ASSOCIATED PERMITS ON THE JOB SITE. WORK SHALL BE PERFORMED IN ACCORDANCE WITH ALL FEDERAL, STATE, AND LOCAL LAWS. 15. THE PERMITTEE SHALL AT ALL TIMES PROTECT SENSITIVE AREAS, THEIR BUFFERS, AND ADJACENT PRIVATE PROPERTIES AND PUBUC RIGHTS-OF-WAY OR EASEMENTS FROM DAMAGE DURING GRADING OPERATIONS. THE PERMITTEE SHALL RESTORE, TO THE STANDARDS IN EFFECT AT THE TIME OF THE ISSUANCE OF THE PERMIT, SENSITIVE AREAS, THEIR BUFFLRS, AND PUBUC AND PRIVATE PROPERTIES AND IMPROVEMENTS DAMAGED BY THE PERMITTEE'S OPERATIONS. 16. CATCH BASIN PROTECTION SHALL BE INSTALLED ON ALL EXISTING STRUCTURES AND ON PROPOSED STRUCTURES IMMEDIATELY UPON CATCH BASIN INSTALLATION AND SHALL REMAIN UNTIL FINAL SITE STABILIZATION. CATCH BASIN INSERTS SHALL BE STREAMGUARD SEDIMENT CATCH BASIN INSERT #3003, ULTRA -DRAIN GUARD #9217, OR APPROVED EQUAL. CATCH BASIN INSERTS SHALL BE INSTALLED IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS, AND MAINTAINED TO OPERATE PROPERLY. CATCH BASIN INSERTS SHALL BE REMOVED FOLLOWING COMPLETION OF CONSTRUCTION AND STABILIZATION OF ALL CLEARED AREAS. 17. PLASTIC COVER SHEETING SHALL HAVE A MINIMUM THICKNESS OF 6 MILS AND SHALL MEET THE REQUIREMENTS OF THE STATE STANDARD SPECIFICATIONS SECTION 9-14.5(3). COVERING SHALL BE INSTALLED AND MAINTAINED TIGHTLY IN PLACE BY USING SANDBAGS OR TIRES ON ROPES WITH A MAXIMUM 10 -FOOT GRID SPACING IN ALL DIRECTIONS. ALL SEAMS SHALL BE TAPED OR WEIGHTED DOWN FULL LENGTH AND THERE SHALL BE AT LEAST A 12 -INCH OVERLAP OF ALL SEAMS. CLEAR PLASTIC COVERING SHALL BE INSTALLED IMMEDIATELY ON AREAS SEEDED BETWEEN NOVEMBER 1 AND MARCH 31 AND REMAIN UNTIL VEGETATION IS RRMLY ESTABLISHED. WHEN THE COVERING IS USED ON UN -SEEDED SLOPES, IT SHALL BE KEPT IN PLACE UNTIL THE NEXT SEEDING PERIOD. PLASTIC COVERING SHEETS SHALL BE BURIED TWO FEET AT THE TOP OF SLOPES IN ORDER TO PREVENT SURFACE WATER FLOW BENEATH SHEETS. PROPER MAINTENANCE INCLUDES REGULAR CHECKS FOR RIPS AND DISLODGED ENDS. 18. STOCKPILES SHALL BE STABIUZED (WITH PLASTIC COVERING OR OTHER APPROVED DEVICE) AT ALL TIMES. IN ANY SEASON, SEDIMENT LEACHING FROM STOCK PILES MUST BE PREVENTED. TOPSOILS SHALL NOT BE PLACED WHILE IN A FROZEN OR MUDDY CONDITION, WHEN THE SUBGRADE IS EXCESSIVELY WET OR WHEN CONDITIONS EXIST THAT MAY OTHERWISE BE DETRIMENTAL TO PROPER GRADING OR PROPOSED SODDING OR SEEDING. PREVIOUSLY ESTABLISHED GRADES ON THE AREAS TO BE TOPSOILED SHALL BE MAINTAINED ACCORDING TO THE APPROVED PLAN. COFFMAN NGINEERS 1601 FIM Avenue, SuNN 9001 Seattle, WA 98101 Pn 906.e23.0117I te. ne.muns LASTING ACCEPTABILITY 119S DESIGN AND/OR BON IS APPROVED APPROVED BY 6/12017 DEPT. DATE DRAWN M. BOSILKOV LHSLITLU A HAZEN NIINLLH W. McHUGH CHECKED APPROVED APPROVED DATE 06.02.17 06.02.17 06.02.17 SEED, SODDING AND TOPSOIL NOTES LOW -GROWING SEED MIX FESTUCA ARUNDINACEA / DWARF TALL FESCUE LOLIUM PERRENE VAR. BARCLAY DWARF PERENNIAL RYE FESTUCA RUBRA / RED FESCUE AGROSTIS TENUIS / COLONIAL BENTGRASS WEIGHT 40 30 25 5 7. PURITY 98 98 98 98 HYDROSEED SEED AT 6 lbs / 1,000 SQUARE FEET; CELLULOSE MULCH AT 40 lbs / 1,000 SQUARE FEET. SOD TO BE LOCAL COMMERCIAL LEND TO MATCH EXISTING LAWN MIX. O GERMINATION 90 90 90 90 TOPSOIL: 1. CONTRACTOR IS RESPONSIBLE FOR SUPPLYING ALL TOPSOIL AND FOR DETERMINING THE VOLUME OF TOPSOIL REQUIRED PER THE INFORMATION ON PLANS AND NOTED HERE -IN. CONTRACTOR IS RESPONSIBLE FOR ANY NECESSARY WEED CONTROL RESULTING FROM CONTAMINATED OFF SITE SOURCES. 2. TOPSOIL TO BE A MINIMUM DEPTH AFTER PROOF ROLLING OF A 4" OVER REDUCED DEMOLITION RUBLE, SEE CIVIL PLANS. 3. TOPSOIL TO CONSIST OF WINTER MIX AS PRODUCED AND REMIXED BY PACIFIC TOPSOILS, INC. WINTER MIX TO CONSIST OF 1/3 BY VOLUME SANDY LOAM, 1/3 BY VOLUME COMPOSTED GARDEN MULCH, AND 1/3 BY VOLUME COARSE WASHED SAND OR EQUIVALENT. POLLUTION PREVENTION NOTES 1. EQUIPMENT LUBRICATION AND FUELING OPERATIONS SHALL OCCUR AT AN OWNER APPROVED ON -SC LOCATION UNLESS APPROVED BY BOEING CONSTRUCTION ADMINISTRATOR. 2. PREVENT OILS AND FUELS FROM ENTERING THE STORM DRAINAGE SYSTEM WITH PROPER CONTAINMENT DEVICES. 3. ACCESS TO CONSTRUCTION IS VIA ADJACENT EXISTING PAVED STREETS. SWEEP DIRT FROM PAVING DAILY OR AS NEEDED. THE INTENT IS TO PREVENT DIRT AND DEBRIS FROM VEHICLES AND EOUIPMENT FROM BEING DEPOSITED ON BOEING -OWNED STREET AND CRY STREET PAVEMENT. 4. THE CONTRACTOR SHALL PREVENT ALL MATERIAL USED OR GENERATED ON-SITE FROM ENTERING THE STORM DRAINAGE SYSTEM. THE CONTRACTOR IS RESPONSIBLE FOR PROVIDING ADEQUATE CONTAINMENT/SEPARATION ALL TIMES. ALL STORMWATER POLLUTION PREVENTION MEASURES SHALL BE COORDINATED WITH ENVIRONMENTAL ENGINEERING TO ENSURE COMPLIANCE WOH APPLICABLE STORMWATER PERMITS. 5. THE CONTRACTOR SHALL CONDUCT A DAILY STORMWATER / ENVIRONMENTAL INSPECTION OF THE CONSTRUCTION SITE. SCOPE OF THE INSPECTION WILL BE COORDINATED WITH SITE ENVIRONMENTAL ENGINEERING. 6. THE CONTRACTOR SHALL FOLLOW ALL ENVIRONMENTAL AND OTHER REQUIREMENTS AS DEFINED IN THE BOEING SERVICE PROVIDER MANUAL (AVAILABLE UPON REQUEST). CONSTRUCTION SEQUENCE 1. COORDINATE TRAFFIC CONTROL PLAN, ENVIRONMENTAL PROCEDURES, AND UTILPY TIE-INS AND SHUTOFFS WITH OWNER AND ENGINEER PRIOR TO BEGINNING WORK. 2. PROVIDE TRAFFIC CONTROL PLAN TO BOEING. 3. POST SIGN WITH NAME AND PHONE NUMBER OF ESC SUPERVISOR (MAY BE CONSOLIDATED WITH THE REQUIRED NOTICE OF CONSTRUCTION SIGN). 4. FLAG OR FENCE CLEARING LIMITS. INSTALL TRAFFIC CONTROL DEVICES. 5. INSTALL CATCH BASIN PROTECTION AND OTHER EROSION CONTROL MEASURES IDENTIFIED ON APPROVED PLAN, WHERE REQUIRED. 6. LOCATE EXISTING UNDERGROUND UTIUIOES AND FIELD VERIFY EXISTING UTILITIES AND CONNECTION POINTS. NOTIFY ENGINEER OF ANY DISCREPANCIES PRIOR TO BEGINING WORK. 7. SAWCUT CONCRETE AND ASPHALT. 8. DEMO CONCRETE AND ASPHALT AND RECYCLE, IF POSSIBLE. IF NOT POSSIBLE, EXPORT AND DISPOSE. 9. DEMO OTHER FEATURES AS SHOWN ON APPROVED PLANS. 10. CLEAN SURFACE OF PAVEMENT ADJACENT TO WORK AREA 11. INSTALL STRUCTURAL FILL, CRUSHED SURFACING, AND PAVEMENT. 12. INSTALL PAINT MARKINGS. 13. MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH BOEING AND JURISDICTIONAL STANDARDS, AND MANUFACTURER'S RECOMMENDATIONS. 14. UPON COMPLETION OF THE PROJECT, STABILIZE ANY REMAINING DISTURBED AREAS AND REMOVE BMPS (BEST MANAGEMENT PRACTICES), IF APPROPRIATE. 15. REMOVE TRAFFIC CONTROL AND REMAINING EROSION CONTROL AND POLLUTION PREVENTION MEASURES UPON APPROVAL FROM CRY INSPECTOR. 06/02/2017 ISSUED FOR CONSTRUCTION SUBTIRE GENERAL NOTES CURRENT REVISION SYMBOL W4640620 DATE 06.02.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA SHEET C2 -DEM JOB No. W4640620 COMP NO. DWG N0. 09-YRD-C2-DEM M. OOSIKLOV: 03/30/17 ENVIRONMENTAL ENGINEERING NOTES GENERAL 1. BOEING WILL BE SOLE CONTACT AND COORDINATOR WITH ANY ENVIRONMENTAL REGULATORY AGENCY. 2. CONTRACTOR WILL PERFORM ALL ENVIRONMENTAL REQUIREMENTS AS INDICATED IN THE BOEING SERVICE PROVIDER MANUAL AND CONTRACTOR ENVIRONMENTAL COMPLIANCE GUIDE. WATER QUALITY 1. CONTRACTOR SHALL PREPARE A WDOE (ECOLOGY) CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN (SWPPP) PER THE REQUIREMENTS FOR THE WDOE CONSTRUCTION STORMWATER GENERAL PERMIT. CONTRACTOR SHALL PERFORM ALL REQUIREMENTS OF THE 'SWPPP' INCLUDING PLAN PREPARATION (INCLUDING REQUIRED DRAWINGS), ANY REQUIRED INSPECTIONS, ANY REQUIRED SAMPUNG, AND REQUIRED PLAN UPDATES AND REVISIONS. BOEING WILL REVIEW AND APPROVE PLAN PRIOR TO PROJECT IMPLEMENTATION. CONTRACTOR SHALL ENSURE PERSONS WITH 'CESCL' ACCREDITATION PERFORM ANY ACTIVITIES REQUIRING THE CESCL CERTIFICATION. AS NOTED, BOEING WILL OBTAIN THE CONSTRUCTION STORMWATER PERMIT FOR THIS PROJECT. 2. CONTRACTOR SHALL COORDINATE ANY NECESSARY DISCHARGES TO THE SANITARY SEWER WIN SITE ENVIRONMENTAL ENGINEERING. REMEDIATION j4C110da BOEING WILL DETERMINE AND IMPLEMENT ANY SOIL OR GROUNDWATER REMEDIATION REQUIREMENTS. ANY SUCH ACTIVITIES ARE NOT INCLUDED IN THIS PROJECT SCOPE OF WORK. HAZARDOUS WASTE MANAGEMENT 1. CONTRACTOR SHALL REMOVE AND SEGREGATE DESIGNATED EQUIPMENT AND SECTIONS OF THE BUILDING DEEMED HAZARDOUS OR REGULATED WASTE BY BOEING. CONTRACTOR WILL BE PROVIDED DETAILED INFORMATION ON WASTE MATERIAL TO BE SEGREGATED IN SUPPORTING DOCUMENTS. IDENTIFIED HAZARDOUS AND REGULATED WASTE WILL INCLUDE BUT NOT BE LIMITED TO: • MERCURY CONTAINING FLUORESCENT LAMPS • LIGHT BALLASTS (PCB AND NON -PCB CONTAINING) • SECTIONS OF CONCRETE DEEMED HAZARDOUS AND NOT FEASIBLE FOR DECONTAMINATION (TO BE REMOVED FOLLOWING PRIMARY ABOVE -GROUND DEMOLTBON) • LIQUID DRAINED FROM ANY BUILDING SYSTEMS OR EQUIPMENT (EXAMPLE: FUEL HEAT EXCHANGE COOLANT, REFRIGERANT, OIL, ETC) 2. CONTRACTOR SHALL ACCUMULATE ALL SEGREGATED HAZARDOUS AND REGULATED WASTE IN CONTAINERS AND ROLLOFFS PROVIDED BY BOEING ENVIRONMENTAL SERVICES. OFFSITE DISPOSAL COORDINATION AND PAPERWORK WILL BE MANAGED BY BOEING. DETAILS OF CONTRACTOR REQUIREMENTS FOR THE MANAGEMENT OF HAZARDOUS AND REGULATED WASTE WILL BE PROVIDED TO THE CONTRACTOR BY BOEING IN SUPPORTING DOCUMENTS. 3. EQUIPMENT, CONCRETE, OR DEBRIS DEEMED HAZARDOUS WASTE MUST BE CUT OR OTHERWISE SIZED TO A MAXIMUM DIMENSION OF 10'X8'%8' AND MAXIMUM WEIGHT OF 10,000 LB PER PIECE. DURING SIZING AND HANDLING OF DEBRIS, CARE MUST BE TAKEN TO NOT SPREAD METAL AND ACID CONTAMINANTS. 4. CONTRACTOR SHALL REFER TO HAZARDOUS MATERIALS SURVEY REPORT BY NVL LABS, DATED MAY 23, 2017, FOR DETAILED INFORMATION REGARDING HAZARDOUS MATERIALS AIR QUALITY 1. CONTRACTOR SHALL EMPLOY REASONABLE PRECAUTIONS TO MINIMIZE EMISSIONS OF FUGITIVE DUST DURING DEMOLITION AND DURING LOADING OF DEMOLITION DEBRIS ON TO TRANSPORT VEHICLES. 2. IN THE EVENT OF HIGH WINDS, CONTRACTOR SHALL TEMPORARILY CURTAIL DUST -PRODUCING DEMOLITION ACTMTIES SO AS TO PREVENT VISIBLE MIGRATION OF DUST OFF-SITE (REF: PSCAA REG I, SECT. 9.15, (A)(1)). SAMPUNG ANO INSPECTIONS REQUIRED DURING PROJECT 1. BOEING EHS WILL PROVIDE REQUIREMENTS TO BOEING CONSTRUCTION MANAGEMENT AND GENERAL CONTRACTOR. DEWATERING REQUIREMENTS 1. BASED ON VOLUMES OF ANTICIPATED GROUNDWATER VOLUMES, BOEING EHS WILL OBTAIN ANY DEWATERING PERMITS FROM WDOE OR KING COUNTY AS REQUIRED. SITE SERVICES AND AWE DESIGN CONSULTANT SHALL PROVIDE ESTIMATED VOLUMES TO BOEING EHS IN TIME FOR ORIGINAL CONSTRUCTION STORMWATER PERMIT SUBMITTAL. 1. INFORMATION REGARDING FINAL STABILIZATION PLANS SHOULD BE INCLUDED IN THE ORIGINAL STORMWATER PERMIT APPUCATION. OTHERWISE A PERMIT MODIFICATION MAY BE REQUIRED. THIS TRIGGERS ANOTHER 60 DAY WANING PERIOD TO COMPLETE THE NEW WORK ONLY, NOT ANY WORK DESCRIBED IN THE ORIGINAL PERMIT APPUCATION. WASTE REMOVAL / CONSIDERATIONS 1. ALL LAMPS, BALLASTS, BATTERIES, THERMOSTATS AND ANY OTHER ITEMS THAT MAY CONTAIN HAZARDOUS MATERIALS WILL BE IDENTIFIED BY BOEING AND MUST BE REMOVED PRIOR TO FINAL DEMOLITION BY THE GENERAL / DEMOUTION CONTRACTOR. 2. BOEING REMEDIATION RESERVES THE RIGHT TO CONDUCT SUBSURFACE ASSESSMENTS DURING THE REMOVAL OF THE ELEVATORS OR IF OTHER UNFORESEEN CONDITIONS ARE DISCOVERED AT SUBSURFACE LOCATIONS. THESE USUALLY HAVE MINIMAL IMPACT TO THE GENERAL / DEMOLITION CONTRACTOR. IF SUBSURFACE CONTAMINATION IS DISCOVERED (THERE IS NOTHING KNOWN AT THIS TIME) FUNDING AND PROJECT MANAGEMENT OF ANY REMEDIATION IS COVERED BY BOEING REMEDIATION. REVISION BY APPROVED DATE SY SUBGRADE PREPARATION NOTES (LAWN AREA) 1. GRAVEL BORROW SHALL BE PLACED IN LOOSE LIFTS NOT TO EXCEED 8 -INCHES, MOISTURE CONDITIONED TO ACHIEVE OPTIMAL MOISTURE CONTENT FOR COMPACTION, AND COMPACTED TO 95% MAX. DENSITY PER ASTM D-1557. 2. GRAVEL BORROW SHALL COMPLY WITH WSDOT STANDARD SPECIFICATION 9-03.14(1), MODIFIED FROM 7.00 TO 5.0% PASSING THE U.S. NO. 200 SIEVE. 3. EXISTING FOUNDATION TO BE BROKEN UP AND GROUND AS ADVISED BY THE GEOTECH ENGINEER. FOUNDATION MATERIAL MAY BE USED AS FILL IN LAWN AREAS. SUBGRADE PREPARATION NOTES (PARKING LOT AREA) 1. ALL EXPOSED SUBGRADE SHALL BE PROOF ROLLED AND COMPACTED TO 95% MAX. DENSITY. 2. REFER TO CITY OF TUKWILA STANDARD NOTES FOR BEDDING AND BACKFILL AND TRENCH BACKFILL MATERIALS ON SHEET C4. PAINT STRIPING NOTES 1. DURING CONSTRUCTION, THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL TEMPORARY STRIPING/SIGNAGE NECESSARY TO MAINTAIN SAFE VEHICLE AND PEDESTRIAN TRAFFIC. 2. THE CONTRACTOR SHALL BE RESPONSIBLE FOR REPAINTING ALL UNES AND SYMBOLS OBSCURED BY HIS WORK TO THE SATISFACTION OF THE OWNER. PRIOR TO CONSTRUCTION, THE CONTRACTOR SHALL FIELD VERIFY THE EXISTING STRIPING/SURFACE OF EACH PAVEMENT SEGMENT TO BE RECONSTRUCTED. 3. THE CONTRACTOR SHALL LAYOUT ALL PROPOSED PAINT STRIPING FOR OWNER'S REVIEW/APPROVAL PRIOR TO FINAL STRIPING. 4. COORDINATE STRIPING WITH THE BOEING COMPANY TO MATCH EXISTING STANDARD STRIPING. 5. ALL LINEAR PATTERN PAVEMENT MARKINGS SHALL BE PAINT. ALL OTHER PAVEMENT MARKINGS (ARROWS, LEI ILK., STOP BARS, CROSSWALKS) SHALL BE THERMOPLASTIC. ALL PAVEMENT MARKINGS SHALL COMPLY WITH WSDOT SPECIFICATION 9-34 AND SHALL BE APPUED IN ACCORDANCE WITH WSDOT SPECIFICATION 8-22. 6. PAINT SHALL BE APPUED IN TWO APPLICATIONS. THE TIME PERIOD BETWEEN APPLICATIONS SHALL BE IN ACCORDANCE WITH WSDOT SPECIFICATION SECTION 8-22.3(3). 7. PAINT AT CROSSWALKS OR PEDESTRIAN TRAFFIC AREAS SHALL HAVE SAND FOR A NON -SLIP SURFACE. CONSULT PAINT MANUFACTURER FOR PARTICLE SIZE AND APPLICATION RATE. 8. LONGITUDINAL MARKING PATTERNS SHALL COMPLY WITH WSDOT STANDARD PLAN M-20.10-02. TRAFFIC ARROWS SHALL COMPLY WITH WSDOT STANDARD PLAN M-24.40-02. SYMBOL MARKINGS (ADA, SPEED BUMP) SHALL COMPLY WITH WSDOT STANDARD PLAN M-24.60-04. TRAFFIC LETTERS SHALL COMPLY WITH WSDOT STANDARD PLAN M-80.30-00. 9. CROSSWALK AND STOP BAR MARKINGS SHALL COMPLY WITH WSDOT STANDARD PLAN M-15.10-01 UNLESS OTHERWISE SPECIFIED. STORM AND SANITARY SEWER NOTES 1. CONNECTIONS TO EXISTING STORM WATER SYSTEM SHALL NOT BE MADE UNTIL THE NECESSARY ARRANGEMENTS AND TIME SCHEDULES HAVE BEEN ARRANGED WITH THE OWNER. 2. PRIOR TO ANY BACKFIWNG OF NEW PIPE, CAPPED OR PLUGGED SERVICE, IT SHALL BE INSPECTED BY A BOEING REPRESENTATIVE TO ENSURE THAT IT CONFORMS TO THE PROJECT STANDARDS AND SPECIFICATIONS. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE BOEING REPRESENTATIVE 24 HRS IN ADVANCE OF BACKFILLING ALL CONSTRUCTION. THE CONTRACTOR SHALL PROVIDE AS -BUILT INFORMATION IN THE FORM OF RED -MARKED DRAWINGS TO THE ENGINEER. 3. ALL NEW AND EXISTING PIPE AND DRAINAGE STRUCTURES SHALL BE CLEANED PRIOR TO FINAL ACCEPTANCE OF WORK. THEY SHALL BE CLEANED BY FLUSHING, RODDING, OR WHATEVER MEANS NECESSARY TO PROVIDE UNOBSTRUCTED DRAINAGE. ALL CATCH BASIN SUMPS, MANHOLES, INLET AND OUTLET STRUCTURES, AND DEBRIS RACKS SHALL BE FREE OF ALL DIRT, ROCK, AND DEBRIS. REVISION APPROVED DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.02.17 BOEArAw. ACCEPTABILITY THIS DESIGN AND/OR TION IS APPROVED *OFFMAN NGINEERS 1801 FiRh Avenue, Suite ODD !Seattle, WA 98101 Ph 2011.1123.07171 Nx ]e8suJ fS celfnan.ccm LASTING ar.,mom. N12017 DEPT. DATE DRAWN M. BOSILKOV CHECKED A HAZEN 'ERCIREER W. McHUGH CHECKED APPROVED DAIS 06.02.17 06.02.17 06.02.17 06/02/2017 ISSUED FOR CONSTRUCTION SUBTITLE GENERAL NOTES CURRENT REVISION W4640620 BOL 06.02.17 TITLE CML MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA SHEET JOB NO. C3 -DEM W4640620 COMP NO. DWG NO. 09-YRD-C3-DEM M. BOSIKLOV: 03/30/17 CITY OF TUKWILA STANDARD NOTES: INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS, 2010 EDITION) GENERAL 1. LOCATIONS SHOWN FOR EXISTING UTILITIES ARE APPROXIMATE. 2. AT LEAST 48 HOURS BEFORE STARTING PROJECT SITE WORK NOTIFY THE UTILITIES INSPECTOR AT 206-433.0179. 3. REQUEST A PUBLIC WORKS UTILITY INSPECTION AT LEAST 24 HOURS IN ADVANCE BY CALUNG 206433-0179. 4. THE CONTRACTOR ASSUMES SOLE RESPONSIBILITY FOR WORKER SAFETY, AND DAMAGE TO STRUCTURES AND IMPROVEMENTS RESULTING FROM CONSTRUCTION OPERATIONS. 5. THE CONTRACTOR SHALL HAVE THE PERMIT(S) AND CONDITIONS, THE APPROVED PLANS, AND A CURRENT COPY OF CITY OF TUKWILA DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS AVAILABLE AT THE JOB SITE. 6. ALL WORK SHALL CONFORM TO THESE APPROVED DRAWINGS. ANY CHANGES FROM THE APPROVED PLANS REQUIRE PRE -APPROVAL FROM THE OWNER, THE ENGINEER. AND THE CITY OF TUKWILA. 7. ALL METHODS AND MATERIALS SHALL MEET CITY OF TUKWILA DEVELOPMENT GUIDELINES AND DESIGN ANS CONSTRUCTION STANDARDS, UNLESS OTHERWISE APPROVED BY THE PUBLIC WORKS DIRECTOR. 8. CONTRACTOR SHALL MAINTAIN A CURRENT SET OF RECORD DRAWINGS ON-SITE. 9. CONTRACTOR SHALL PROVIDE RECORD DRAWINGS PRIOR TO PROJECT FINAL APPROVAL. 10. PROVIDE TRAFFIC CONTROL AND STREET MAINTENANCE PLAN FOR PUBLIC WORKS APPROVAL BEFORE IMPLEMENTATION. DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS &2. 11. ALL SURVEYING FOR PUBLIC FACILITIES SHALL BE DONE UNDER THE DIRECTION OFA WASHINGTON LICENSED LAND SURVEYOR. VERTICAL DATUM SHALL BE NAVD 1988. HORIZONTAL DATUM SHALL BE WASHINGTON STATE (GRID) COORDINATES, NORTH ZONE, USING NAD 83/91 SURVEY CONTROL AND TIED TO ANY TWO CITY OF TUKWILA HORIZONTAL CONTROL MONUMENTS. FOR PROJECTS WITHIN A FLOOD CONTROL ZONE, THE PERMITTEE SHALL PROVIDE CONVERSION CALCULATIONS TO NGVD 1929. 12. REPLACE OR RELOCATE ALL SIGNS DAMAGED OR REMOVED DUE TO CONSTRUCTION. 13. RETAIN. REPLACE OR RESTORE EXISTING VEGETATION IN RIGHTS-OF-WAY, EASEMENTS, AND ACCESS TRACTS. CONSTRUCTION 1. ALL WORK PERFORMED SHALL BE PER APPROVED PLANS AND SPECIFICATIONS ONLY. THE PERMITTEE IS REQUIRED TO MAINTAIN A SET OF APPROVED PLANS, SPECIFICATIONS, AND ASSOCIATED PERMITS ON THE JOB SITE. WORK SHALL BE PERFORMED IN ACCORDANCE WITH AUL FEDERAL, STATE, AND LOCAL LAWS. PERMITTEE SHALL APPLY FORA REVISION FOR ANY WORK NOT ACCORDING TO THE APPROVED PLANS. 2. PERMITTEE/CONTRACTOR SHALL ARRANGE A PRECONSTRUCTION CONFERENCE WITH THE CITY'S INSPECTOR(S) PRIOR TO BEGINNING ANY WORK 3. WORK IN ROADWAYS A. ALL WORK IN ROADWAYS SHALL MEET TMC 11 AND THE FOLLOWING: B. PRIOR TO ANY ACTIVITY IN CITY RIGHT-OF-WAY, THE PERMITTER SHALL PROVIDE THE CRY A TRAFFIC CONTROL PLAN FOR REVIEW AND APPROVAL. THE TRAFFIC CONTROL PLAN SHALL INCLUDE THE LOCATION, ADDRESS AND DESCRIPTION OF TRAFFIC FLOW DURING THE WORK AND SHALL MEET MUTCD REQUIREMENTS. C. ALL WORK REQUIRING LANE CLOSURES MUST BE BY PERMIT ONLY. FROM THE THIRD THURSDAY IN NOVEMBER TO THE FOLLOWING JANUARY 2ND. THE DIRECTOR DOES NOT ALLOW LANE CLOSURES IN THE TUKWILA URBAN CENTER. D. FIRE, PEDESTRIAN, AND VEHICULAR ACCESS TO BUILDINGS SHALL BE MAINTAINED AT ALL TIMES, EXCEPT WHEN PERMITTEE HAS PERMISSION FROM THE BUILDING OWNER AND THE DIRECTOR TO CLOSE AN ACCESS. E. ALL ROADWAYS SHALL BE KEPT FREE OF DIRT AND DEBRIS USING STREET SWEEPERS. USE OF WATER TRUCKS FOR CLEANING ROADWAYS REQUIRES PREAPPROVAL FROM THE DIRECTOR F. INSTALL STEEL PLATES OVER ANY TRENCH, AT ANY TIME WORK IS STOPPED AND THE TRENCH IS LEFT OPEN. UTILITY NOTES 1. ALL TRENCH EXCAVATION OPERATIONS SHALL MEET OR EXCEED ALL APPLICABLE SHORING LAWS FOR TRENCHES OVER 4 -FEET DEEP. ALL TRENCH SAFETY SYSTEMS SHALL MEET WISHA REQUIREMENTS. 2. POWER, CABLE, FIBER OPTICS, AND TELEPHONE LINES SHALL BE IN A TRENCH WITH A 5' MINIMUM HORIZONTAL SEPARATION FROM OTHER UNDERGROUND UTILITIES. ADJUST ALL MANHOLES, CATCH BASINS, AND VALVES IN PUBLIC RIGHTS-OF-WAY OR EASEMENTS AFTER ASPHALT PAVING. REVIS BY APPROVED DATE SY GENERAL CONSTRUCTION 1. A PRECONSTRUCTION MEETING SHALL BE HELD WITH THE CITY PRIOR TO THE START OF CONSTRUCTION. 2. ALL WORKMANSHIP AND MATERIALS SHALL BE IN ACCORDANCE WITH THE CITY OF TUKWILA STANDARDS, THE CURRENT EDITION OF THE STATE OF WASHINGTON STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION. AND ANY PROJECT -SPECIFIC SPECIAL PROVISIONS OR CONDITIONS AND REQUIREMENTS. 3. TEMPORARY EROSION CONTROL MEASURES ARE REQUIRED AND SHALL COMPLY WITH THE STORMWATER CODE CHAPTER 5 OF THESE STANDARDS AND WSDOT/APWA SPECIFICATION 1-07.15 AS FOLLOWS: 3.1. EROSION CONTROL PLANS SHALL BE SUBMITTED TO THE CITY, APPROVED BY THE CITY, AND IMPLEMENTED BY THE CONTRACTOR PRIOR TO DISTURBING ANY SOIL ON THE SITE. SUBMITTAL AND APPROVAL OF THESE PLANS SHALL PRECEDE ANY CONSTRUCTION ACTIVITY ON THE SITE. 32. ALL PERMANENT STORAGE AND RETENTION/DETENTION AREAS USED AS PART OF THE TEMPORARY EROSION CONTROL AND WATER POLLUTION/FLOOD ACTIVITIES AND CONVEYANCE SYSTEMS SHALL BE CLEANED OF ALL SILTS, SAND AND OTHER MATERIALS FOLLOWING COMPLETION OF CONSTRUCTION AND THE PERMANENT FACILITIES SHALL THEN BE COMPLETED INCLUDING PERMANENT INFILTRATION AREAS. 4. HORIZONTAL AND VERTICAL CONTROLS/DATUM AS ADOPTED BY THE CITY SHALL BE USED. UNLESS APPROVED OTHERWISE. 5. THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING UTILITIES. THE CONTRACTOR SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO CONSTRUCTION BY CALLING UNDERGROUND LOCATE AT '8111 OR 1-000-424-5555 A MINIMUM OF 48 HOURS PRIOR TO ANY EXCAVATION WORK. 6. ALL NON-FERROUS PIPE AND SERVICES SHALL BE INSTALLED WITH CONTINUOUS TRACER TAPE INSTALLED 1T TO 181 UNDER THE FINAL GROUND SURFACE. THE MARKER TAPE SHALL BE 4' WIDE MINIMUM PLASTIC NON -BIODEGRADABLE, METAL CORE OR BACKING MARKED AND COLOR CODED FOR THE UTILITY TO BE MARKED AND WHICH CAN BE DETECTED BY A STANDARD METAL DETECTOR. TAPE SHALL BE TERRA TAPE 101 OR APPROVED EQUAL. IN ADDITION TO TRACER TAPE, FORCE MAINS AND CURVED MAINS SHALL HAVE A 14 GAUGE COATED COPPER WIRE, WRAPPED AROUND THE PIPE, BROUGHT UP, COATING STRIPPED, AND TIED OFF AT THE VALVE STEM OR MANHOLE RING. THE TAPE AND WIRE SHALL BE FURNISHED AND INSTALLED BY THE CONTRACTOR. 7. TEMPORARY STREET PATCHING MAY BE ALLOWED WITH THE APPROVAL OF THE CITY ENGINEER. 8. THE CONTRACTOR SHALL PROVIDE A TRAFFIC CONTROL PLAN(S) FOR REVIEW AND APPROVAL BY THE CITY ENGINEER IN ACCORDANCE WITH THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MUTCD). 9. THE CONTRACTOR SHALL HAVE A COPY OF THE APPROVED PLANS AND PERMITS AT THE CONSTRUCTION SITE AT ALL TIMES. 10. SPECIAL STRUCTURES SHALL BE INSTALLED PER PLANS AND MANUFACTURERS' RECOMMENDATIONS. 11. ALL DISTURBED AREAS SHALL RECEIVE TEMPORARY AND PERMANENT EROSION CONTROL IN THE FORM OF VEGETATION ESTABLISHMENT SUCH AS GRASS SEEDING. A MEANS SHALL BE ESTABLISHED TO PROTECT THE PERMANENT STORM DRAIN SYSTEM PRIOR TO ESTABLISHMENT OF THE PERMANENT EROSION CONTROL MEASURES. 12. CONSTRUCTION WORK HOURS SHALL BE RESTRICTED TO 7 AM. TO 6 P.M., MONDAY THROUGH FRIDAY, UNLESS OTHERWISE APPROVED IN WRITING. 13. THE CITY PUBLIC WORKS INSPECTOR SHALL BE NOTIFIED A MINIMUM OF 24 HOURS IN ADVANCE OF THE NEED FOR AN INSPECTION. EVERY EFFORT WILL BE MADE TO ACCOMMODATE SAME-DAY INSPECTIONS IF THE CITY IS NOTIFIED BEFORE 8 AM. BEDDING AND BACKFILL 1. FOR DUCTILE IRON PIPE (DIP), BEDDING MATERIAL SHALL BE IN ACCORDANCE WITH SECTION 903.12(3) GRAVEL BACKFILL FOR PIPE ZONE BEDDING OF THE STANDARD SPECIFICATIONS. 2. FOR CONVENIENCE, CRUSHED ROCK BEDDING CONFORMING TO CRUSHED SURFACING TOP COURSEMATERIAL OF SECTION 9-03.9(3) CRUSHED SURFACING OF THE STANDARD SPECIFICATIONS MAY ALSO BE USED AS BEDDING MATERIAL FOR PIPE. 3. IN UNPAVED AREAS. THE CONTRACTOR MAY REQUEST TO USE EXCAVATED MATERIAL USED AS PIPEBEDDING WHERE R HAS BEEN DETERMINED BY THE ENGINEER AS SUITABLE MEETING THEREQUIREMENTS OF SECTION 9-03.12(3) GRAVEL BACKFILL FOR PIPE ZONE BEDDING OF THESTANDARD SPECIFICATIONS, AND PROPER COMPACTION LEVELS CAN BE ACHIEVED. 4. FOR POLYVINYL CHLORIDE (PVC) PIPE, CORRUGATED POLYETHYLENE (CPE) PIPE, AND OTHERTHERMOPLASTIC PIPE, BEDDING MATERIAL SHALL BE IMPORTED MATERIAL CONFORMING TO CRUSHEDSURFACING TOP COURSE MATERIAL OF SECTION 9-03.9(3) CRUSHED SURFACING OF THE STANDARDSPECIFICATIONS. 5. FOR DUCTILE IRON SEWER PIPE, THE CONTRACTOR MAY REQUEST TO USE EXCAVATED MATERIAL AS PIPEBEDDING WHERE IT HAS BEEN DETERMINED BY THE ENGINEER AS SUITABLE MATERIAL MEETING THEREQUIREMENTS OF SECTION 9-03.12(3) GRAVEL BACKFILL FOR PIPE ZONE BEDDING OF THESTANDARD SPECIFICATIONS AND PROPER COMPACTION LEVELS CAN BE ACHIEVED. TRENCH BACKFILL MATERIALS 1. FOR TRANSVERSE TRENCHES (PERPENDICULAR TO THE ROADWAY CENTERLINE) IN PAVED AREAS, CRUSHED ROCK BACKFILL CONFORMING TO WSDOT SECTION 9-03.9(3) CRUSHED SURFACING OF THE STANDARD SPECIFICATIONS SHALL BE USED AS TRENCH BACKFILL FOR PIPE. 2. FOR LONGITUDINAL TRENCHES (TRENCHES PARALLEL TO THE CENTERLINE OF THE ROADWAY) IN PAVED AREAS, BACKFILL MATERIAL (4 FEET AND DEEPER BELOW FINISHED GRADE) SHALL CONFORM TO SECTION 9-03.14(1) GRAVEL BORROW OF THE STANDARD SPECIFICATIONS. THE CONTRACTOR MAY REQUEST TO USE EXCAVATED MATERIAL AS TRENCH BACKFILL AND MUST DEMONSTRATE TO THE ENGINEER THAT THE SUITABLE EXCAVATED MATERIAL CONFORMS TO WSDOT SECTION 9-03.14(1) GRAVEL BORROW OF THE STANDARD SPECIFICATIONS AND PROPER COMPACTION LEVELS CAN BE ACHIEVED. ADMIXTURES AND/OR ADDITIVES MAY NOT BE USED TO MODIFY THE MOISTURE CONTENT IN ORDER TO MEET COMPACTION SPECIFICATIONS. 3. THE TOP 4 FEET OF LONGITUDINAL TRENCHES SHALL BE BACKFILLED WITH CRUSHED ROCK CONFORMING TO WSDOT SECTION 9-03.9(3) CRUSHED SURFACING OF THE STANDARD SPECIFICATIONS. 4. IN UNPAVED AREAS, TRENCH BACKFILL MATERIAL SHALL CONFORM TO SECTION 9-03.14(1) GRAVEL BORROW OF THE STANDARD SPECIFICATIONS. THE CONTRACTOR MAY REQUEST TO USE EXCAVATED MATERIAL AS TRENCH BACKFILL WHEN IT HAS BEEN DETERMINED BY THE ENGINEER TO BE SUITABLE AND CONFORMS TO WSDOT SECTION 9-03.14(1) GRAVEL BORROW OF THE STANDARD SPECIFICATIONS AND PROPER COMPACTION LEVELS CAN BE ACHIEVED. WATER NOTES: 1. THE DEVELOPER/CONTRACTOR SHALL BE RESPONSIBLE FOR THE FIELD STAKING OF ALL WATER MAINS. THE STAKING MUST BE ACCOMPLISHED BY A WASHINGTON STATE -LICENSED ENGINEERING OR SURVEYING FIRM QUALIFIED TO PERFORM SUCH WORK, AT THE DEVELOPER/CONTRACTORS EXPENSE 2. THE CITY OF TUKWILA SHALL BE NOTIFIED A MINIMUM OF THREE FULL WORKING DAYS IN ADVANCE OF COMMENCING WORK ON A WATER MAIN CONNECTION. A CITY OF TLACWLA REPRESENTATIVE SHALL BE PRESENT AT THE TIME OF THE CONNECTION. 3. THE CONTRACTOR SHALL POTHOLE TO VERIFY THE LOCATION AND DEPTH OF UTILITY CROSSINGS AND CONNECTIONS PRIOR TO BEGINNING CONSTRUCTION IN THAT AREA. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING ALL EXISTING PIPE TYPES AND SIZES FOR COUPLINGS, CONNECTIONS AND LIVE TAPS, AT THEIR EXPENSE. PARTS MUST BE ON-SITE PRIOR TO SCHEDULING CUT -INS OR CONNECTIONS. ALL CHARGES FOR CUT -INS AND LIVE TAPS ARE THE RESPONSIBILITY OF THE DEVELOPER/CONTRACTOR 5. THE CONTRACTOR SHALL FURNISH A WATERTIGHT PLUG OF THE APPROPRIATE SIZE, WHICH SHALL BE INSTALLED IN THE END OF THE WATER PIPE ANY TIME THAT WORK IS DELAYED OR STOPPED. 6. THE MINIMUM COVER FOR THE WATER MAIN 12 INCHES IN DIAMETER OR SMALLER SHALL BE 36 INCHES TO THE TOP OF THE PIPE. THE MINIMUM COVER FOR WATER MAINS OVER 12 INCHES IN DIAMETER SHALL BE 48 INCHES TO THE TOP OF THE PIPE. THE MAXIMUM DEPTH SHALL NOT BE GREATER THAN 60 INCHES TO THE TOP OF THE PIPE. IN THE VICINITY OF UTILITY CONFLICTS, THE MINIMUM DEPTH OF COVER MAY BE REDUCED TO 30 INCHES. OTHERWISE, WATER MAINS SHALL BE LOWERED TO CLEAR. WHERE WATER MAINS CROSS BENEATH SANITARY SEWER THE LENGTH OF THE WATER MAIN SHALL BE CENTERED AT THE POINT OF CROSSING SO THAT THE JOINTS WILL BE EQUIDISTANT AND AS FAR AS POSSIBLE FROM THE SEWER LINE. 7. A MINIMUM OF TEN (10) FEET OF HORIZONTAL CLEARANCE MUST BE MAINTAINED BETWEEN POTABLE WATER FACILITES AND SANITARY SEWER FACILITIES UNLESS OTHERWISE ALLOWED BY THE CITY OF TUKWILA B. A MINIMUM OF 1 -FOOT VERTICAL SEPARATION SHALL BE MAINTAINED BETWEEN ALL UTILITIES WITH THE EXCEPTION OF SANITARY SEWER CROSSINGS, WHERE AN 1&INCH MINIMUM VERTICAL SEPARATION IS REQUIRED. IF THE REQUIRED VERTICAL SEPARATION ABSOLUTELY CANNOT BE OBTAINED, ETHAFOAM SHALL BE INSTALLED BETWEEN THE UTILITIES. 9. WATER SERVICE PIPING SHALL BE COPPER TYPE M OR SCHEDULE 40 BRASS. 10. BEDDING OF THE PIPELINES AND COMPACTION OF BACKFILL MATERIAL SHALL BE REQUIRED IN ACCORDANCE WITH THE STANDARD SPECIFICATIONS. 11. THE CONTRACTOR SHALL PROVIDE AND INSTALL PROTECTIVE DEVICES IN ORDER TO PREVENT PIPE DEGENERATION AT THOSE LOCATIONS WHERE PIPE OF DISSIMILAR METAL ARE JOINED, OR WHERE METALLIC PIPE IS BEING INSTALLED AND CATHODIC PROTECTION HAS BEEN EMPLOYED ON AN ADJACENT OR CROSSING PIPELINE. 12. PLASTIC SHEETING SHALL BE USED ASA BOND BREAKER BETWEEN CONCRETE BLOCKING AND PIPE/FITTINGS. 13. PRIOR TO BACKFILL, ALL MAINS AND APPURTENANCES SHALL BE REVIEWED AND APPROVED BY THE CRY OF TUKWILA APPROVAL SHALL NOT RELIEVE THE DEVELOPER/CONTRACTOR FOR CORRECTION OF ANY DEFICIENCIES AND/OR FAILURES AS DETERMINED BY SUBSEQUENT TESTING AND INSPECTIONS. IT SHALL BE THE DEVELOPER/CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE CITY OF TUKWILA AT LEAST TWO FULL WORKING DAYS IN ADVANCE OF THE REQUIRED REVIEWS AND TESTS. 14. WATER SYSTEM TRENCHES SHALL BE BACKFILLED AND COMPACTED TO95 PERCENT OF THE SOIL'S MAXIMUM DENSITY IN RIGHT-OF-WAY AND IMPROVED AREAS (ROADS, DRIVEWAYS, SIDEWALKS, ETC.) AND TO 90 PERCENT OF THE SOIL'S MAXIMUM DENSITY IN UNIMPROVED AREAS (LAWNS, LANDSCAPING, NATURAL VEGETATION, ETC.), AS DETERMINED BY THE MODIFIED PROCTOR TEST, ASTM D1557. COMPACTION TESTING IS REQUIRED FOR ALL OPEN CUTS. TESTING SHALL BE ACCOMPLISHED AT THE DEVELOPER/CONTRACTOR'S EXPENSE. 15. RECYCLED CONCRETE SHALL NOT BE ALLOWED AS TRENCH BACKFILL OR IN LIEU OF CRUSHED SURFACING TOP COURSE 16. THE CITY OF TUKWILA SHALL BE THE SOLE OPERATOR OF EXISTING VALVES. 17. CUT -INS SHALL BE DIRECTLY SUPERVISED BY AN AUTHORIZED REPRESENTATIVE OF THE CITY OF TUKWILA. 18. EXISTING WATER FACILITIES BEING ABANDONED, AND/OR ABANDONED CROSSING PIPES SHALL BE MADE WATERTIGHT BY PLUGGING/CAPPING PRIOR TO BACKFILLING. PIPE SHALL BE PLUGGED/CAPPED AT THEIR INLETS/OUTLETS WITH PROPER FITTING MECHANICAL PLUGS/CAPS, PRIOR TO BACKFILLING. 19. WATER SETTLING OF TRENCHES SHALL NOT BE ALLOWED. REVISION BY APPROVED DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.02.17 WATER NOTES CONTINUED: 20. TEMPORARY STREET PATCHING SHALL BE ALLOWED FOR AS APPROVED BY THE UTILITY INSPECTOR AND THE CITY OF TUKWILA. COLD MIX TEMPORARY PATCH SHALL BE PLACED AND MAINTAINED IN SUCH A MANNER AS TO PREVENT TRAFFIC HAZARDS UNTIL A PERMANENT PAVEMENT PATCH HAS BEEN PLACED. TEMPORARY PATCHING SHALL BE REMOVED AND PROPERLY DISPOSED OF WHEN PAVEMENT IS PLACED. IF THE TEMPORARY PATCHING IS NOT ADEQUATELY CONSTRUCTED AND/OR MAINTAINED, THE CITY OF TUKWILA, AFTER NOTIFICATION TO THE CONTRACTOR, HAS THE OPTION OF INSTALLING ADDITIONAL COLD MIX AT THE DEVELOPER/CONTRACTOR'S EXPENSE. 21. VALVE MARKER POSTS SHALL BE INSTALLED FOR VALVES LOCATED OUTSIDE PAVED SURFACES. 22. AN OPERATING NUT EXTENSION SHALL BE INSTALLED WHEN THE GROUND SURFACE IS MORE THAN 30 INCHES ABOVE THE VALVE OPERATING NUT. THE OPERATING NUT EXTENSION SHALL EXTEND INTO THE TOP SECTION OF THE STANDARD VALVE BOX AND SHALL CLEAR THE BOTTOM OF THE LID BY A MAXIMUM OF SIX INCHES. EXTENSION PIECES, WHEN USED, SHALL CONFORM TO MINIMUM THICKNESS REQUIREMENTS AND SHALL FIT INTO THE TOP SECTION AND OVER THE BOTTOM SECTION. THE EXTENSION SHALL BE SECURELY FASTENED TO THE VALVE ASSEMBLY USING A SET SCREW OR PIN PRIOR TO BACKFILLING. A PLASTIC FOAM RING SHALL BE INSTALLED BETWEEN THE BOTTOM BASE SECTION AND THE GATE VALVE. 23. SERVICE CONNECTIONS ON DUCTILE IRON MAINS OR FOR ANY WATER SERVICE SHALL BE INSTALLED WITH ROMAC. 24. THE CITY OF TUKWILA SHALL PROVIDE ALL TAPS ON EXISTING CITY OF TUKWILA WATER MAINS. THE CONTRACTOR SHALL PAY FOR CITY WATER DEPARTMENT TO TAP MAINS ON TM BASES. THE CONTRACTOR TO SUPPLY ALL TAPPING SLEEVES AND OTHER PARTS RELATED TO TAPPING. 25. ALL COUPLINGS SHALL BE ROMAC 501, OR EQUIVALENT. 26. THE CONTRACTOR SHALL ONLY SHUT OFF WATER SERVICE TO EXISTING WATER CUSTOMERS BETWEEN THE HOURS OF 9 AM TO 3 PM, MONDAY THROUGH FRIDAY UNLESS ARRANGEMENTS ARE MADE WITH THE CITY OF TUKWILA TO DO OTHERWISE. WATER SHALL NOT BE CUT OFF ON WEEKENDS OR ON CITY OF TUKWILA-OBSERVED HOLIDAYS. THE CONTRACTOR SHALL PROVIDE THE CITY OF TUKWILA A MINIMUM OF FOUR WORKING DAYS NOTICE PRIOR TO REQUIRING A WATER MAIN SHUT DOWN. 27. NO WATER CONNECTIONS SHALL BE MADE UNTIL THE NEW PIPING HAS BEEN FLUSHED. DISINFECTED. AND SUCCESSFULLY PRESSURE AND BACTERIA TESTED. A CITY OF TUKWILA REPRESENTATIVE SHALL BE PRESENT AT THE TIME OF THE CONNECTION. 28. THE CONTRACTOR SHALL OBTAIN A DOUBLE CHECK VALVE ASSEMBLY AND ASSOCIATED WATER METER FROM THE CITY OF TUKWILA FOR USE IN OBTAINING WATER TO FILL NEWLY CONSTRUCTED WATER MAINS FOR FLUSHING AND BACTERIOLOGICAL TESTING. THE DEVELOPER SHALL BE LIABLE FOR PAYMENT OF ANY DAMAGES THAT OCCUR TO THE BACKFLOW/METER ASSEMBLY WHILE IN THE CONTRACTOR'S POSSESSION. THE CONTRACTOR WILL BE ALLOWED TO CONNECT TO A FIRE HYDRANT (TO REMAIN IN FULL OPEN POSITION) WITH THIS DEVICE AS REQUIRED TO PERFORM THE NECESSARY OPERATION. 29, DISINFECTION WASTEWATER SHALL BE DISCHARGED INTO THE SANITARY SEWER SYSTEM OR NEUTRALIZED COMPLETELY (ZERO CHLORINE RESIDUAL) AND SAFELY DISCHARGED BY OTHER MEANS. AT NO TIME SHALL CHLORINATED WATER FROM A NEW MAIN BE FLUSHED INTO A FRESH WATER BODY OR ITS TRIBUTARY AREA. THIS IS TO INCLUDE LAKES, RIVERS. STREAMS, DRAINAGE WAYS, STORM DRAINAGE SYSTEMS, AND ANY AND ALL OTHER AREAS TRIBUTARY TO WHERE FISH OR OTHER NATURAL WATER LIFE CAN BE EXPECTED. THE CONTRACTOR SHALL FOLLOW EROSION AND SEDIMENT CONTROL BEST MANAGEMENT PRACTICES (BMP'S) WHEN DISCHARGING ONTO THE GROUND. 30. HYDROSTATIC AND BACTERIA TESTS ARE REQUIRED ON ALL NEW WATER MAIN INSTALLATIONS IN ACCORDANCE WITH THE STANDARD SPECIFICATIONS. PRESSURE AND BACTERIOLOGICAL TESTS SHALL BE CONDUCTED BY THE CONTRACTOR IN THE PRESENCE OF THE CITY OF TUKWILA AND/OR THEIR REPRESENTATIVE. THE CONTRACTOR SHALL PROVIDE PLUGS AND/OR TEMPORARY BLOW -OFF ASSEMBLIES FOR PURITY TESTING AND PURITY ACCEPTANCE PRIOR TO TIE-IN. PRESSURE AND BACTERIA TESTING SHALL TAKE PLACE FOLLOWING COMPLETION OF ALL UNDERGROUND UTILITY CONSTRUCTION AND THE CONSTRUCTION OF ROADWAY SUBGRADE. BACTERIOLOGICAL TEST SAMPLES SHALL BE TAKEN AND DELIVERED TO THE TESTING LAB BY THE CITY OF TUKWILA 31. AFTER INSTALLATION, BACKFLOW DEVICES SHALL BE TESTED AND CERTIFIED BY A WASHINGTON STATE CERTIFIED BACKFLOW ASSEMBLY TESTER. TEST RESULTS SHALL BE PROVIDED TO CITY OF TUKWILA. 32. FINAL ACCEPTANCE OF WATER FACILITY INSTALLATION WILL NOT BE MADE UNTIL TESTS AND INSPECTIONS ARE COMPLETE AND PROVEN SATISFACTORY. PIPE CLASS I PROTECTION 1 COVER A DUCTILE IRON PIPE SHALL BE ENCASED IN A STEEL OR DUCTILE IRON CASING WHEN CROSSING UNDER IMPROVEMENTS WHERE THE ABILITY TO REMOVE AND REPLACE PIPE WITHOUT DISTURBANCE TO THE IMPROVEMENT IS NEEDED. CASINGS ARE REQUIRED WHEN: - CROSSING UNDER ROCKERIES OVER 4' HIGH. - CROSSING UNDER RETAINING WALL FOOTINGS OVER 4' WIDE. - CROSSING UNDER REINFORCED EARTH RETAINING WALLS (BOTH WALL AND REINFORCING MATERIAL). CASINGS SHALL EXTEND A MINIMUM OF 5' PAST EACH EDGE OF THE IMPROVEMENT, ORA DISTANCE EQUAL TO THE DEPTH OF PIPE WHICHEVER IS GREATER THE CARRIER PIPE SHALL BE SUPPORTED BY CASING SPACERS, WHERE CASING LENGTH EXCEEDS 10'. MINIMUM CLEARANCE BETWEEN BOTTOM OF ROCKERY AND TOP OF PIPE OR CASING SHALL BE Z. THE TRENCH SHALL BE BACKFILLED WITH CRUSHED ROCK. B. BUILDING SETBACK REQUIREMENT'S: 5' MINIMUM FROM COVERED PARKING TO WATERMAIN. 10' MINIMUM FROM BUILDING (AND RETAINING WALLS) TO WATERMAIN. 20' MINIMUM EASEMENT SHALL BE PROVIDED BETWEEN BUILDINGS. WHEN PASSING BETWEEN BUILDINGS WHICH ARE 2E APART OR LESS, DUCTILE IRON PIPESHALL BE INSTALLED WITH 2' OF PIPE COVER (5' BEYOND THE LIMITS OF EACH BUILDING). C. ALL DUCTILE IRON PIPE AND ADJACENT FITTINGS SHALL BE ENCASED IN 8 -MIL POLYETHYLENE PERAWWA C105. MATERIAL SPECIFICATIONS: A PIPE I. DUCTILE RON PIPE CLASS 52, AWWA C-150; WSDOT APWA STANDARD SPECIFICATIONS SECTION 930.1(1). I. PVC PIPE: AWWA C-900ONLY, WSDOT/APWA STANDARD SPECIFICATIONS SECTION 930.05) B. FITTINGS DUCTILE RON PIPE WSDOT/AWIA STANDARD SPECIFICATIONS SECTION 9302(7); MJFRTINGS i. PVC PIPE: AWWA C-900 ONLY,WSDOT/ARNA STANDARD SPECIFICATIONS SECTION 930.2(5); NJ FITTINGS. NO GLUE ii. HOT TAPS: STAINLESS STEEL TAPPING SLEEVE, ROMAC ONLY C. VALVES AND APPURTENANCES GATE VALVES: RESLENI WEDGE, AWNA C500 i. BUTTERFLY VALVES: AW,VA C504 BACKFLOW PREVENTERS: RESILIENT SEAT, DOH APPROVED, AWNA C605 N. STANDPIPES: STANDPIPES SHALL BE EQUIPPED WITH AT LEAST A 2-1/2 INCH NATIONAL STANDARD THREAD CONNECTION PORT. AN EMERGENCY PORT MAY ALSO BE INSTALLED ON ABOVE GROUND FACILITES TO THE SAME SPECIFICATIONS. V VALVE BOXES: WSDOT/APNA STANDARD SPECIFICATIONS SECTION 930.3(4) 0. HYDRANTS: AWWAC502 MUELLER MODEL CENTURY 200WITH TWO 2-1R INCH (NATIONAL STANDARD THREAD) SIDE PORTS AND ONE 4INCH (NATIONAL STANDARD THREAD) STEAMER NOZZLE WITH 4 -INCH STORTZ ADAPTER E METERS AND SERVICES i. METERS: SENSUS SRI, OR APPROVED EQUAL L CORPORATION STOPS: MUELLER MODEL NUMBER H1502H (1' S 36/' H9969 (1117 B 2), WSDOT/APWA STANDARD SPECIFICATIONS SECTION 930.8(2), IPTx 110 ii. SERVICE SADDLES: WSDOT/APWA STANDAR() SPECIFICATIONS SECTION 930.6(1) N. CURB STOPS: MUELLER H-15175. OR APPROVED EQUAL. WADI COPPER INLET AND INSIDE IP OUTLET. IPT x 110 COMPRESSION v. METER BOXES: PVC OR CONCRETE METER BOX 16 INCHES BY 22 INCHES BY 12 INCHES. A. SERVICE PRES: WSDOT/APWA STANDARD SPECFICATIONS 930.6(3): 314 INCH OR 1 INCH TYPE 00 COPPER OR LARGER AS NECESSARY. F. MISCELLANEOUS GUARD POSTS: WSDOT/APWA STANDARD SPECIFICATIONS SECTION 939.5(6) L. MARKER POST: WSDOTIAPWA STANDARD SPECIFICATIONS SECTION 930.3(5) Ii. THRUST BLOCKNG AWMW C6N1 N. PIPE GASKETS: AW WA C115 AI g)LAIROEZAIG ACCEPTABILITY THIS DESIGN AND/OR TION IS APPROVED COFFMAN NGINEERS 1601 FRA AVO8we, SLA1.4,3„9001988N fl, WA 98101 PN244.RB.07,YlN 308.5 1.8189899 -.,+�.+w 6/12017 DATE M. BOSILKOV CHECKED A. FIAZEN LNWNLLH W. McHUGH CHECKED APPROVED Alt 06.02.17 06.02.17 06.02.17 SEWER NOTES: 1. THE DEVELOPER/CONTRACTOR SHALL BE RESPONSIBLE FOR THE FIELD STAKING OF ALL SEWER MAINS. THE STAKING MUST BE ACCOMPLISHED BY WASHINGTON STATE -LICENSED ENGINEERING OR SURVEYING FIRM QUALIFIED TO PERFORM SUCH WORK, AT THE DEVELOPER/CONTRACTOR'S EXPENSE. 2. THE CITY OF TUKWILA SHALL BE NOTIFIED A MINIMUM OF TWO FULL WORKING DAYS IN ADVANCE OF COMMENCING WORK ON A SANITARY SEWER CONNECTION. A CITY OF TUKWILA REPRESENTATIVE SHALL BE PRESENT AT THE TIME OF THE CONNECTION. 3. THE CONTRACTOR SHALL POTHOLE TO VERIFY THE LOCATION AND DEPTH OF UTILITY CROSSINGS AND CONNECTIONS PRIOR TO BEGINNING CONSTRUCTION IN THAT AREA. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING ALL EXISTING PIPE TYPES AND SIZES FOR COUPLINGS, CONNECTIONS, AND LIVE TAPS, AT THEIR EXPENSE. PARTS MUST BE ON-SITE PRIOR TO SCHEDULING CUT -INS OR CONNECTIONS. ALL CHARGES FOR CUT -INS AND LIVE TAPS ARE THE RESPONSIBILITY OF THE DEVELOPER/CONTRACTOR. 5. THE CONTRACTOR SHALL FURNISH A WATERTIGHT PLUG OF THE APPROPRIATE SIZE. WHICH SHALL BE INSTALLED IN THE END OF THE SEWER PIPE ANY TIME THAT WORK IS DELAYED OR STOPPED. 6. A MINIMUM OF TEN (10) FEET OF HORIZONTAL CLEARANCE MUST BE MAINTAINED BETWEEN POTABLE WATER FACILITIES AND SANITARY SEWER FACILITIES UNLESS OTHERWISE ALLOWED BY THE CITY OF TUKWILA. 7. A MINIMUM OF 1 -FOOT VERTICAL SEPARATION SHALL BE MAINTAINED BETWEEN ALL UTILITIES WITH THE EXCEPTION OF WATER CROSSINGS, WHERE AN 18 -INCH MINIMUM VERTICAL SEPARATION IS REQUIRED. IF THE REQUIRED VERTICAL SEPARATION ABSOLUTELY CANNOT BE OBTAINED, ETHAFOAM SHALL BE INSTALLED BETWEEN THE UTILITIES. 8. THE CONTRACTOR SHALL STORE AND HANDLE PIPE AND FITTINGS PER THE MANUFACTURER'S RECOMMENDATIONS AND SHALL MEETING THE CITY OF TUKWILA'S REQUIREMENTS. STORED PVC AND HOPE PIPE AND FITTINGS SHALL BE KEPT COOL, OUT OF DIRECT SUNLIGHT, AND COVERED WITH AN OPAQUE MATERIAL. IMPACT DAMAGE TO AND DRAGGING OF THE PIPE AND FITTINGS SHALL BE PROHIBITED. PIPES AND/OR FITTINGS NOT CONFIRMING TO THESE REQUIREMENTS OR DAMAGED IN TRANSIT SHALL BE REJECTED BY THE CITY OF TUKWILA. S. ALL PVC/HOPE SIDE SEWER PIPING SHALL BE INSTALLED WITH CONTINUOUS TRACER TAPE INSTALLED 12' TO 18' UNDER THE PROPOSED FINISHED SUBGRADE. 10. DUCTILE IRON PIPE SHALL BE CLASS 52, UNLESS OTHERWISE SPECIFIED. AND SHALL CONFORM TO THE LATEST REVISIONS OF THE ASA A21 S1 AND AVVWA C151 SPECIFICATIONS. DUCTILE IRON PIPE FOR ALL SANITARY SEWER APPLICATIONS SHALL BE PROVIDED WITH AN INTERIOR COATING/LINING OF POLYETHYLENE MEETING THE REQUIREMENTS OF ASTM 01248 OR PROTECTO 401 CERAMIC EPDXY, 40 MIL MINIMUM THICKNESS. A BITUMINOUS COATING SHALL BE APPLIED TO THE PIPE'S EXTERIOR. 11. DUCTILE IRON FITTINGS SHALL MEET CURRENT APPLICATION ASA A21.10 (AWWA C110) AND ASA A21.11 (AW WA C111) SPECIFICATIONS. DUCTILE IRON FITTINGS FOR ALL SANITARY SEWER APPLICATIONS SHALL BE PROVIDED WITH AN INTERIOR COATING/LINING OF POLYETHYLENE MEETING THE REQUIREMENTS OF ASTM 01248 OR PROTECTO 401 CERAMIC EPDXY, 40 MIL MINIMUM THICKNESS. A BITUMINOUS COATING SHALL BE APPLIED TO THE FITTING'S EXTERIOR. 12. SEWER SERVICE STUB MARKERS SHALL BE PLASTIC, WHITE IN COLOR, NON -BIODEGRADABLE, METAL CORE OR BACKING MARKED SEWER THAT CAN BE DETECTED BY A STANDARD METAL DETECTOR 13. BEDDING OF THE PIPELINES AND COMPACTION OF BACKFILL MATERIAL SHALL BE REQUIRED IN ACCORDANCE WITH THE BEDDING NOTES AND SPECIFICATIONS. 14. THE CONTRACTOR SHALL PROVIDE AND INSTALL PROTECTIVE DEVICES IN ORDER TO PREVENT PIPE DEGENERATION AT THOSE LOCATIONS WHERE PIPE OF DISSIMILAR METAL ARE JOINED, OR WHERE METALLIC PIPE IS BEING INSTALLED AND CATHODIC PROTECTION HAS BEEN EMPLOYED ON AN ADJACENT OR CROSSING PIPELINE. 15. PRIOR TO BACKFILL, ALL MAINS AND APPURTENANCES SHALL BE REVIEWED AND APPROVED BY THE CITY OF TUKWILA. APPROVAL SHALL NOT RELIEVE THE DEVELOPER/CONTRACTOR FOR CORRECTION OF ANY DEFICIENCIES AND/OR FAILURES AS DETERMINED BY SUBSEQUENT TESTING AND INSPECTIONS. IT SHALL BE THE DEVELOPER/CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE CITY OF TUKWILA AT LEAST TWO FULL WORKING DAYS IN ADVANCE OF THE REQUIRED REVIEWS AND TESTS. 16. SEWER SYSTEM TRENCHES SHALL BE BACKFILLED AND COMPACTED TO 95 PERCENT OF THE SOIL'S MAXIMUM DENSITY IN RIGHT-OF-WAY AND IMPROVED AREAS (ROADS, DRIVEWAYS, SIDEWALKS, ETC.) AND COMPACTED TO 90 PERCENT OF THE SOIL'S MAXIMUM DENSITY IN UNIMPROVED AREAS (LAWNS, LANDSCAPING, NATURAL VEGETATION, ETC.), AS DETERMINED BY THE MODIFIED PROCTOR TEST, ASTM D1557. COMPACTION TESTING IS REQUIRED FOR ALL OPEN CUTS. TEST DEPTH AND FREQUENCY SHALL BE DETERMINED BY THE CITY OF TUKWILA. TESTING SHALL BE ACCOMPLISHED AT THE DEVELOPER/CONTRACTOR'S EXPENSE. 17. RECYCLED CONCRETE SHALL NOT BE ALLOWED AS TRENCH BACKFILL OR IN LIEU OF CRUSHED SURFACING TOP COURSE. 18. EXISTING SEWER FACILITIES BEING ABANDONED AND/OR ABANDONED CROSSING PIPES, SHALL BE MADE WATERTIGHT BY PLUGGING/CAPPING PRIOR TO BACKFILLING AT THEIR INLETS/OUTLETS. THE PLUGS/CAPS SHALL BE PROPERLY FITTED MECHANICAL FITTINGS OR COMMERCIAL CONCRETE. COMMERCIAL CONCRETE PLUGS SHALL EXTEND INTO THE PIPE A MINIMUM OF TWO PIPE DIAMETERS. 19. WATER SETTLING OF TRENCHES SHALL NOT BE ALLOWED. 20. TEMPORARY STREET PATCHING SHALL BE ALLOWED FOR AS APPROVED BY THE UTILITY INSPECTOR AND THE CITY OF TUKWILA COLD MIX TEMPORARY PATCH SHALL BE PLACED AND MAINTAINED IN SUCH A MANNER AS TO PREVENT TRAFFIC HAZARDS UNTIL A PERMANENT PAVEMENT PATCH HAS BEEN PLACED. TEMPORARY PATCHING SHALL BE REMOVED AND PROPERLY DISPOSED OF WHEN PAVEMENT ISPLACED 21. IF THE TEMPORARY PATCHING IS NOT ADEQUATELY CONSTRUCTED AND/OR MAINTAINED, THE CITY OF TUKWILA, AFTER NOTIFICATION TO THE CONTRACTOR, HAS THE OPTION OF INSTALLING ADDITIONAL COLD MIX AT THE DEVELOPER/CONTRACTOR'S EXPENSE. 22. EXISTING PAVEMENT AND SIDEWALK SHALL BE IN -SAWCUT' CONDITION PRIOR TO PATCHING. REMOVAL AREA SHALL BE MINIMUM NECESSARY TO INSTALL THE FACILITIES. SAWCUTTING TAILINGS AND WASTEWATER SHALL BE CONTAINED, REMOVED, AND PROPERLY DISPOSED OF BY THE CONTRACTOR. 23. NO FREE-FLOWING CONNECTION SHALL BE MADE BETWEEN THE NEW MAIN AND THE EXISTING SYSTEM UNTIL THE NEW PIPING HAS BEEN FLUSHED AND SUCCESSFULLY PRESSURE TESTED. FLOW THROUGH THE DOWNSTREAM (CONNECTING) MANHOLE OF THE NEW SYSTEM SHALL BE PLUGGED BY THE DEVELOPER IN ORDER TO CATCH CONSTRUCTION DEBRIS PRIOR TO THEIR ENTERING THE EXISTING SANITARY SEWER SYSTEM. 24. ALL SIDE SEWER STUBS AND SEWER MAINS SHALL BE HIGH -VELOCITY CLEANED, VIDEOED (TVED) AND PRESSURE TESTED FOLLOWING THE INSTALLATION OF ALL OTHER UNDERGROUND UTILITIES AND THE CONSTRUCTION OF ROADWAY SUBGRADE, BUT PRIOR TO PAVING. TESTING SHALL TAKE PLACE IN THE PRESENCE OF THE CITY OF TUKWILA THE CONTRACTOR SHALL PROVIDE ALL EQUIPMENT NECESSARY FOR TESTING. RE-VIDEOING FOLLOWING THE DEVELOPER'S CORRECTIVE ACTION SHALL BE AT THE DEVELOPER'S EXPENSE. 25. HYDRANT FLUSHING OF LINES IS NOT AN ACCEPTABLE CLEANING METHOD. THE CONTRACTOR SHALL ENSURE THAT FLUSHING DEBRIS ARE CAPTURED PRIOR TO ENTERING THE CITY OF TUKWILA'S EXISTING SANITARY SEWER SYSTEM. THE ENCATCHMENT METHOD SHALL MEET THE APPROVAL OF THE CITY OF TUKWILA. A CITY OF TUKWILA REPRESENTATIVE MUST BE PRESENT WHEN FLUSHING OCCURS. 26. FINAL ACCEPTANCE OF SEWER INSTALLATION WILL NOT BE MADE UNTIL TESTS AND INSPECTIONS ARE COMPLETE AND PROVEN SATISFACTORY. 4" TO 15" DIAMETER PVC PIPE ALL PVC PIPE AND FITTINGS SHALL BE INTEGRAL WALL BELL AND SPIGOT. RUBBER GASKET JOINT, UNPLASTICIZED POLYVINYL CHLORIDE (PVC) PIPE. ALL PVC PIPE SHALL HAVE A MINIMUM 'PIPE STIFFNESS' OF 46 PSI AT 5 PERCENT DEFLECTION AT 73 DEGREES F WHEN TESTED IN ACCORDANCE WITH ASTM DESIGNATION D-2412. EXTERNAL LOADING PROPERTIES OF PLASTIC PIPE; AND A MINIMUM IMPACT STRENGTH BASED ON ASTM D3034 AT 73 DEGREES F USING A 20 POUND MP A. ALL PVC SEWER PIPE AND FITTINGS MANUFACTURE AND INSTALLATION SHALL MEET OR EXCEED THE ASTM RECOMMENDED SPECIFICATIONS D-3034, SDR 35, UNLESS OTHERWISE SPECIFIED, AND ALL INSTALLATIONSHALL BE IN STRICT COMPLIANCE WITH THE MANUFACTURERS DIRECTIONS. ALL PIPE SHALL BE CLEARLY MARKEDWITH THE DATE OF MANUFACTURE. ALL PIPE SHALL BE PROVIDED WITH A REFERENCE MARK FOR PROPER SPIGOTINSERTION. JOINT GASKETS SHALL BE FABRICATED FROM A COMPOUND OF WHICH THE BASIC POLYMER SHALL BEA SYNTHETIC RUBBER CONSISTING OF STYRENE, BUTADIENE, POLYISOPRENE OR ANY COMBINATION THEREOF ANDSHALL MEET THE REQUIREMENTS OF ASTM D3212. CLEARANCESIOTHER UTILITIES IF THE MINIMUM VERTICAL DISTANCE BETWEEN UTILITY PIPES IS LESS THAN 64NCHES AND SUCH INSTALLATION IS APPROVED BY THE CITY. A PAD SHALL BE PLACED BETWEEN THE PIPES. THE PAD SHALL BE O.D. X O.D. X 2.5 INCHES THICK MINIMUM OR AS REQUIRED TO PROTECT THE PIPES. ABOVE OD. IS EQUAL TO THE OUTSIDE DIAMETER OF THE LARGER PIPE. THE PAD SHALL BE A POLYETHYLENE FOAM PLANK (DOW PLASTICS ETHAFOAM TM 220), OR APPROVED EQUAL. ADDITIONAL MEASURES MAY BE NECESSARY TO ENSURE SYSTEM INTEGRITY AND MAY BE REQUIRED AS EVALUATED BY THE CITY ON A CASE BY CASE BASIS 06/02/2017 ISSUED FOR CONSTRUCTION SUBTITLE GENERAL NOTES CURRENT REVISION W4640620 SYMBOL DATE 06.02.17 CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA SHEET JOBNC4-DEM W4640620 COMP N0. DWG NO. 09-YRD-C4-DEM SYM US POST OFFICE WAREHOUSE TBM 'A' 'AXIS' MAD NAIL AND WASHER ELEV = 17.51 //////////////////// /L////// FOUND PUNCH MARK IN 3-1/4" BRASS DISK, IN CASE, STAMPED 'HORTON DENNIS & ASSOC. SEATTLE WENATCHEE WA' ELEV = 17.52' (3/3/2017) P_ SEWER PUMP STATION NO.11 (VALLEY VIEW SEWER DISTRICT) A C S AJ, O ( ( ti LAWN 328.6' O — TREES JOGGING TRAIL nO if V / // 09-150 BOEING EMPLOYEES / ACTIVITY CENTER / PROPERTY UNE TREE CANOPY UNE TRAIL UGNT, TIP pp�RO%I TE 5�110RE�NE JUWSD�C oOtA� = PARCEL 0423049186 WESTERN FSO FOUND 1/2" REBAR AND CAP. 15115033, (N4212'5616) 18.29' OF CALCULATED LOT CORNER (3/3/2017) V V V V PARCEL 0423049150 DESIMONE TRUST OXBOW 2601 — LAWN — TREES — TREES LEG i?? REVISION DEMOLITION OF BUILDING 09-150 W4640620 BY CEI APPROVED DATE SYM AT. REVISION OVERALL SITE PLAN SCALE: 1" = 40' BY APPROVED DATE MS 06.02.17 el___ArzwrAvc LEGEND • PoOVIRO.®4 SET BENCHMARK FOUND MONUMENT IN CASE FOUND REBAR AND CAP AS NOTED SANITARY SEWER MANHOLE FIRE DEPARTMENT CONNECTOR FIRE HYDRANT STREET LIGHT POWER JUNCTION BOX POWER METER SIGN BOLLARD TREE TREE DRIP LINE O 1 D DATUM CHAIN LINK FENCE LINE PROPERTY LINE ROCKERY CONCRETE BUILDINGS WOOD CHIPS PAVERS HORIZONTAL DATUM: NAD 83/91 • WASHINGTON STATE PLANE ZONE: NORTH — COMBINED SCALE FACTOR 0.99999843942 KINGCO MONUMENT DESIGNATION: 3427 DB ID: 40803 — 6" DIA. CONCRETE POST W/3" BRASS DISK PUBLISHED COORDINATES — NORTHING:186864.56 (USFt)/EASTING: 1280027.03 (USFi) VERTICAL DATUM: NAVD 8B CONVERSION TO NGVD 29 = —3.56' CITY OF SEATTLE MONUMENT DESIGNATION: 3685-5801 DB ID: 48204 2" BRASS CAP MARKED CITY OF SEATTLE SURVEY ELEVATION: 19.463 (USFi) TBM "A": SET AXIS MAG NAIL & WASHER ELEVATION: 19.66 (USFi) TBM "B": TOP OF PUNCH MARK IN 3-1/4" BRASS DISK, IN CASE, STAMPED 'HORTON DENNIS & ASSOC. SEATTLE WENATCHEE WA' ELEVATION: 17.52 (USFi) SITE INFORMATION SITE ADDRESS: 10500 W MARGINAL WAY S PARCEL NUMBER: 0423049150 LAND AREA: 1,504,264 SF (34.53 AC) ZONING: MANUFACTURING INDUSTRIAL CENTER/HEAVY (MIC/H) / / WATER DISTRICT: CITY OF TUEWILA SEWER DISTRICT: VALLEY VIEW / POWER PROVIDER: SEATTLE CITY LIGHT / / LEGAL DESCRIPTION / (8,-,J� (PER ROS NEC. NO. 20170215900003) � THAT PORTION OF GOVERNMENT LOTS 6 AND 7, IN �� / SECTION 4, TOWNSHIP 23 NORTH, RANGE 4 EAST OF / W.M., IN KING COUNTY, WASHINGTON, AND OF THE / NORTHWEST QUARTER OF THE SOUTHEAST QUARTER OF �.' / / SAID SECTION 4, LYING NORTHEASTERLY OF THE NORTHEASTERLY BOUNDARY LINE OF PROPOSED / EXTENSION OF THE DUWAMISH WATERWAY, WHICH THE / ,D. / 3 PARTIES HERETO AGREE SHALL BE DESCRIBED AS A LINE / PARALLEL TO AND 225 FEET NORTHEASTERLY FROM, MEASURED AT RIGHT ANGLES, THE SOUTHEASTERLY PROJECTION OF THE CENTERLINE OF THE EXISTING / DUWAMISH WATERWAY (COMMERCIAL WATERWAY DISTRICT / NO. 1 OF KING COUNTY). / SITUATE IN THE CITY OF TUKWILA, COUNTY OF KING, / STATE OF WASHINGTON / 4COFFMAN NGINEERS 1801 AWl Avenue, Suite BOD !Seale, WA 88101 ph 200.623.071T 11ee ZO8.6212115 ACCEPTABILITY THIS DESIGN AND/OR 'CATION IS APPROVED BY DEPT. DATE APPROVED 6112017 DRAWN M. ED1ZBBOOESIDLKOV A. HAZEN NDIALER W. McHUGH tHEUKUX APPROVED APPROVED DATE 06.02.17 06.02.17 06.02.17 06/02/2017 ISSUED FOR CONSTRUCTION SUBTITLE OVERALL SITE PLAN 40 20 0 20 40 80 SCALE: 1" = 40' CURRENT REVISION SYMBOL W4640620 — DATE 06.02.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA SHEET C5 -DEM JOB NO. W4640620 COMP NO. DWG NO. 09—YRD—05—DEM M. BOSIKLOV: 03/30/17 SYM NOTE: CONTRACTOR TO PROVIDE "FINAL STABILIZATION" AS DEFINED BY THE CONSTRUCTION STORMWATER GENERAL PERMIT. COORDINATE WITH OWNER AND DEPARTMENT OF ECOLOGY TO OBTAIN ECOLOGY ACCEPTANCE OF THE "NOTICE OF TERMINATION" (NOT) REQUEST. ALL PERMIT REQUIREMENTS MUST BE BE MAINTAINED UNTIL PERMIT TERMINATION. / / / / // / //�/ / \/ / / / / / /.^0 NOT ENTER' 5161 /0/NOT 5105 / // / P ; / SXIP '00 A ':SES My. NAIL AND Et.W EV = . V / /�/ `A, / / / / .r r AUTO.-SPKR ATT -ACHED TO BTX IRRIGATION PST 010110E CASSONi?E S11t0. MARKER )NC SU2v MONUMENT FOINCJENER.AL AREA)UND ..:-T1 x 0.U5'VkITE RAMER' 0 _..E-C._10E__..._. VOLT::t:E POWER ENCLAS�P'E ..._.....--..__...__..... •'OTRAND_uYULi4TRE -4 CA TC 1 1L" x\ E.S' 01.A. SEVER VAULT i/ :7X1 SAN 1M 7t–fix........___-- PANK NC PAY C•" - TELE \ \,5151 . �. -- _51_51_ ..•..:::NC - „„_.AND HAS61115E CONES SE'LY REVISION DEMOLITION OF BUILDING 09-150 W4640620 BY CEI APPROVED DATE SON REVISION / BY APPROVED TESC PLAN SCALE: 1"=30' DATE MS 06.02.17 gLATASIAEITAW° ITPT LINE I IAEOFFINIAN NGINEERS 1601 FMB Avenue, Suite 9001 Seattle, WA 98101 00 204623.071711u 004624.0775 eexmen.6en, LASTING ..mi ewe ow:wow ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED APPROVED BY RPOtSTER_1R,C. - S'tJONA1.bF 6/1/2017 DEPT. DATE DRAWN M. BOSILKOV CHECKED A. HAZEN G. cHUGH CHECKED APPNOVtu APPROVED DATE 06.02.17 06.02.17 06.02.17 SITE KEY PLAN (7) NOT TO SCALE LEGEND MATERIAL STOCKPILE AREA mm LIMITS OF CONSTRUCTION - + '•• -0- SWALE WITH CHECK DAM SURFACE DRAINAGE FLOW PROTECT TREE \w GENERAL NOTES 1. SEE SHEET C2 -DEM -C4 -DEM FOR RELATED PROJECT NOTES. 2. MAINTAIN ALL EROSION CONTROL MEASURES UNTIL COMPLETION OF PROJECT. 3. NOTIFY BOEING TWO (2) WEEKS IN ADVANCE OF WORK TO COORDINATE RELOCATION OF BOEING PROPERTY WITHIN PROJECT LIMITS TO AN APPROVED LOCATION. 4. PROTECT EXISTING PAVING FROM DAMAGE. CONTRACTOR MUST REPLACE ALL DAMAGED PAVING IN KIND OR BETTER. 5. ALL UTILITIES MUST REMAIN IN SERVICE UNLESS OTHERWISE SPECIFIED ON DEMOLITION PLANS. CONSTRUCTION NOTES Li PROVIDE CATCH BASIN PROTECTION PER DETAIL 1/C500 -DEM. ›- FLAG CONTRACTION LIMITS AND INSTALL SILT FENCE PER DETAIL 6/C500 -DEM. UTILIZE EXISTING ASPHALT DRIVEWAY DURING INITIAL PHASE OF MOBILIZATION AND SITE PREPARATION. REMOVE AS NECESSARY FOR SITE GRADING. ® INSTALL STABILIZED CONSTRUCTION ENTRANCE PER DETAIL 2/C500 -DEM. CONSTRUCT TEMPORARY SEDIMENT POND PER THE 2009 KING COUNTY STANDARD DETAIL D.3.5.2. © INSTALL STANDPIPE PER DETAIL 7/C500 -DEM. Li INSTALL TEMPORARY POND OUTFALL PIPE (12” ADS). ® CONNECT PIPE TO EXISTING STORM STRUCTURE. INSTALL TEMPORARY SWALE PER DETAIL 4/C500 -DEM. INSTALL CHECK DAMS AT 50' O.C. PER DETAIL 5/C500 -DEM. 1D> GRADE SITE TO DIRECT SURFACE RUNOFF AWAY FROM WORK AREAS AND TOWARDS TEMPORARY SWALES AND SEDIMENT POND. PROTECT EXISTING TREE DURING CONSTRUCTION. COVER MATERIAL STOCKPILE AREA WITH PLASTIC COVERING PER DETAIL 2/C500 -DEM. SWEEP PAVEMENT PERIODICALLY TO PREVENT OFF-SITE TRACKING OF DUST AND DEBRIS. PROTECT EXISTING ELECTRICAL TRANSFORMER, CONCRETE PAD, AND FENCE. REMOVAL 06/02/2017 ISSUED FOR CONSTRUCTION SUBTITLE TESC PLAN 30 15 0 15 30 60 SCALE CURRENT REVI510N SYMBOL W4640620 - DATE 06.02.17 CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA SHEET C6 -DEM JOB NO. W4640620 COMP N0. DWG N0. 09-YRD-C6-DEM M. BOSIKLOV: 03/30/17 II II It 11 II It II II II II 11 II II SCM // / • / , ,/ // // / / / , //\/ // / /\- M /41, / / / / / / ' /// /\ ,‘ X\ / / / / , / ' /\ ,z' ,' / 17.96 ME / / / \/ / / / /j . / / / /1 V.,„ / / / / J a•, ///, '// / //., // /// / /, /// / x / / / : ,- / / / ::71!272;V// / /,/ ;'\,„/\, /,, (:: / / /A\1 / / 02 ME // (rine8.11 ME/ 4 16:01 M / 1/ 17.69 17.62 ME 17.46 ME \ \\, S. S. •-- SAN SAM REASON • DEMOLITION OF BUILDING 09-150 W4640620 BY CEI / APPROVED DATE STU REVISION _ SA,/ GRADING AND DRAINAGE PLAN %1 78 —18 SCALE: 1=30 BY APPROVED DATE MS 06.02.17 Ararm-,Arc. 0.5% ..••" EX SDMH SAM — CUSS. 12-M IC = wisouo LATc,H CiATE AFOFFMAN NGINEERS 1601 Fit Avenue, Guile 900199PM, WA 68101 ph 206.623.071,1.306.8AA.AWS cothwanAmm LASTING mma ACCEPTABILITY THIS DESIGN AND/Oft CATION IS APPROVED DEPT. DATE APPROVED BY 6/1/2017 DRAWN M. BOSILKOV 'MELTED A. HAZEN NGINLEH G. McHUGH 'CHECKED APPROVED APPROVED DATE 06.02.17 06 02 17 06.02.17 S. SITE KEY PLAN NOT TO SCALE LEGEND 0 STORM DRAIN MANHOLE YARD DRAIN DRYWELL RIDGE LINE — — — GRADING LIMITS 17"_\ ME TBC SURFACE FLOW ARROW SPOT ELEVATION AT CURB FLOWUNE MATCH EXISTING TOP BACK OF CURB GENERAL NOTES 1. SEE SHEETS C2—DEM TO 04—OEM FOR RELATED PROJECT NOTES. 2. MAINTAIN ALL EROSION CONTROL MEASURES UNTIL COMPLETION OF PROJECT. 3. NOTIFY BOEING TWO (2) WEEKS IN ADVANCE OF WORK TO COORDINATE RELOCATION OF BOEING PROPERTY WITHIN PROJECT LIMITS TO AN APPROVED LOCATION. 4. PROTECT EXISTING PAVING FROM DAMAGE. CONTRACTOR MUST REPLACE ALL DAMAGED PAVING IN KIND OR BETTER. 5. ALL UTILITIES MUST REMAIN IN SERVICE UNLESS OTHERWISE SPECIFIED ON DEMOLITION PLANS. CONSTRUCTION NOTES Li- LOWER EXISTING SDMH RIM TO ELEV. 15.89 REPLACE COVER WITH BEEHIVE GRATE. 06/02/2017 ISSUED FOR CONSTRUCTION SUBTITLE GRADING AND DRAINAGE PLAN ADJUST RIM TO GRADE IN ACCORDANCE WITH CITY OF TUKWILA REQUIREMENTS. PROTECT EXISTING ELECTRICAL TRANSFORMER, CONCRETE PAD, AND FENCE. 30 15 0 15 30 60 SCALE: 1" = 30' CURRENT REVISION SYMBOL W4640620 DATE 06.02.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL DEV. CENTER, WA SHEET JOB NO. W4640620 COMP NO. DWG NO. 09 —YRD—C171 —DEM M. BOSIKLOV, 03/30/17 Stormwater Pollution Prevention Plan Appendix B — Construction BMPs 4.1 Source Control BMPs BMP C101: Preserving Natural Vegetation Purpose The purpose of preserving natural vegetation is to reduce erosion wherever practicable. Limiting site disturbance is the single most effective method for reducing erosion. For example, conifers can hold up to about 50 percent of all rain that falls during a storm. Up to 20-30 percent of this rain may never reach the ground but is taken up by the tree or evaporates. Another benefit is that the rain held in the tree can be released slowly to the ground after the storm. Conditions of Use Design and Installation Specifications • Natural vegetation should be preserved on steep slopes, near perennial and intermittent watercourses or swales, and on building sites in wooded areas. • As required by local governments. Natural vegetation can be preserved in natural clumps or as individual trees, shrubs and vines. The preservation of individual plants is more difficult because heavy equipment is generally used to remove unwanted vegetation. The points to remember when attempting to save individual plants are: • Is the plant worth saving? Consider the location, species, size, age, vigor, and the work involved. Local governments may also have ordinances to save natural vegetation and trees. • Fence or clearly mark areas around trees that are to be saved. It is preferable to keep ground disturbance away from the trees at least as far out as the dripline. Plants need protection from three kinds of injuries: • Construction Equipment - This injury can be above or below the ground level. Damage results from scarring, cutting of roots, and compaction of the soil. Placing a fenced buffer zone around plants to be saved prior to construction can prevent construction equipment injuries. • Grade Changes - Changing the natural ground level will alter grades, which affects the plant's ability to obtain the necessary air, water, and minerals. Minor fills usually do not cause problems although sensitivity between species does vary and should be checked. Trees can tolerate fill of 6 inches or less. For shrubs and other plants, the fill should be less. When there are major changes in grade, it may become necessary to supply air to the roots of plants. This can be done by placing a layer of gravel and a tile system over the roots before the fill is made. A tile 4-2 Volume ll — Construction Stormwater Pollution Prevention February 2005 rr I Li rn t_ system protects a tree from a raised grade. The tile system should be laid out on the original grade leading from a dry well around the tree trunk. The system should then be covered with small stones to allow air to circulate over the root area. Lowering the natural ground level can seriously damage trees and shrubs. The highest percentage of the plant roots are in the upper 12 inches of the soil and cuts of only 2-3 inches can cause serious injury. To protect the roots it may be necessary to terrace the immediate area around the plants to be saved. If roots are exposed, construction of retaining walls may be needed to keep the soil in place. Plants can also be preserved by leaving them on an undisturbed, gently sloping mound. To increase the chances for survival, it is best to limit grade changes and other soil disturbances to areas outside the dripline of the plant. • Excavations - Protect trees and other plants when excavating for drainfields, power, water, and sewer lines. Where possible, the trenches should be routed around trees and large shrubs. When this is not possible, it is best to tunnel under them. This can be done with hand tools or with power augers. If it is not possible to route the trench around plants to be saved, then the following should be observed: Cut as few roots as possible. When you have to cut, cut clean. Paint cut root ends with a wood dressing like asphalt base paint. Backfill the trench as soon as possible. Tunnel beneath root systems as close to the center of the main trunk to preserve most of the important feeder roots. Some problems that can be encountered with a few specific trees are: • Maple, Dogwood, Red alder, Western hemlock, Western red cedar, and Douglas fir do not readily adjust to changes in environment and special care should be taken to protect these trees. • The windthrow hazard of Pacific silver fir and madronna is high, while that of Western hemlock is moderate. The danger of windthrow increases where dense stands have been thinned. Other species (unless they are on shallow, wet soils less than 20 inches deep) have a low windthrow hazard. Cottonwoods, maples, and willows have water -seeking roots. These can cause trouble in sewer lines and infiltration fields. On the other hand, they thrive in high moisture conditions that other trees would not. • Thinning operations in pure or mixed stands of Grand fir, Pacific silver fir, Noble fir, Sitka spruce, Western red cedar, Western hemlock, February 2005 Volume II — Construction Stormwater Pollution Prevention 4-3 Pacific dogwood, and Red alder can cause serious disease problems. Disease can become established through damaged limbs, trunks, roots, and freshly cut stumps. Diseased and weakened trees are also susceptible to insect attack. Maintenance • Inspect flagged and/or fenced areas regularly to make sure flagging or Standards fencing has not been removed or damaged. If the flagging or fencing has been damaged or visibility reduced, it shall be repaired or replaced immediately and visibility restored. • If tree roots have been exposed or injured, "prune" cleanly with an appropriate pruning saw or lopers directly above the damaged roots and recover with native soils. Treatment of sap flowing trees (fir, hemlock, pine, soft maples) is not advised as sap forms a natural healing barrier. n n I i P 4-4 Volume ll - Construction Stormwater Pollution Prevention February 2005 BMP C102: Buffer Zones Purpose Conditions of Use Design and Installation Specifications An undisturbed area or strip of natural vegetation or an established suitable planting that will provide a living filter to reduce soil erosion and runoff velocities. Natural buffer zones are used along streams, wetlands and other bodies of water that need protection from erosion and sedimentation. Vegetative buffer zones can be used to protect natural swales and can be incorporated into the natural landscaping of an area. Critical -areas buffer zones should not be used as sediment treatment areas. These areas shall remain completely undisturbed. The local permitting authority may expand the buffer widths temporarily to allow the use of the expanded area for removal of sediment. • Preserving natural vegetation or plantings in clumps, blocks, or strips is generally the easiest and most successful method. • Leave all unstable steep slopes in natural vegetation. • Mark clearing limits and keep all equipment and construction debris out of the natural areas. Steel construction fencing is the most effective method in protecting sensitive areas and buffers. Alternatively, wire -backed silt fence on steel posts is marginally effective. Flagging alone is typically not effective. • Keep all excavations outside the dripline of trees and shrubs. • Do not push debris or extra soil into the buffer zone area because it will cause damage from burying and smothering. • Vegetative buffer zones for streams, lakes or other waterways shall be established by the local permitting authority or other state or federal permits or approvals. Maintenance • Inspect the area frequently to make sure flagging remains in place Standards and the area remains undisturbed. February 2005 Volume II — Construction Storm water Pollution Prevention 4-5 BMP C103: High Visibility Plastic or Metal Fence Purpose Fencing is intended to: (1) restrict clearing to approved limits; (2) prevent disturbance of sensitive areas, their buffers, and other areas required to be left undisturbed; (3) limit construction traffic to designated construction entrances or roads; and, (4) protect areas where marking with survey tape may not provide adequate protection. Conditions of Use To establish clearing limits, plastic or metal fence may be used: f • At the boundary of sensitive areas, their buffers, and other areas required to be left uncleared. • As necessary to control vehicle access to and on the site. Design and • High visibility plastic fence shall be composed of a high-density Installation polyethylene material and shall be at least four feet in height. Posts Specifications for the fencing shall be steel or wood and placed every 6 feet on center (maximum) or as needed to ensure rigidity. The fencing shall be fastened to the post every six inches with a polyethylene tie. On long continuous lengths of fencing, a tension wire or rope shall be used as a top stringer to prevent sagging between posts. The fence color shall be high visibility orange. The fence tensile strength shall be 360 lbs./ft. using the ASTM D4595 testing method. • Metal fences shall be designed and installed according to the manufacturer's specifications. • Metal fences shall be at least 3 feet high and must be highly visible. • Fences shall not be wired or stapled to trees. Maintenance • If the fence has been damaged or visibility reduced, it shall be Standards repaired or replaced immediately and visibility restored. 4-6 Volume ll - Construction Stormwater Pollution Prevention February 2005 .77 n Li r r� n n , L.� 1 LJ BMP C105: Stabilized Construction Entrance Purpose Conditions of Use Construction entrances are stabilized to reduce the amount of sediment transported onto paved roads by vehicles or equipment by constructing a stabilized pad of quarry spalls at entrances to construction sites. Construction entrances shall be stabilized wherever traffic will be leaving a construction site and traveling on paved roads or other paved areas within 1,000 feet of the site. On large commercial, highway, and road projects, the designer should include enough extra materials in the contract to allow for additional stabilized entrances not shown in the initial Construction SWPPP. It is difficult to determine exactly where access to these projects will take place; additional materials will enable the contractor to install them where needed. Design and • See Figure 4.2 for details. Note: the 100' minimum length of the Installation entrance shall be reduced to the maximum practicable size when the Specifications size or configuration of the site does not allow the full length (100'). • A separation geotextile shall be placed under the spalls to prevent fine sediment from pumping up into the rock pad. The geotextile shall meet the following standards: Grab Tensile Strength (ASTM D4751) 200 psi min. Grab Tensile Elongation (ASTM D4632) 30% max. Mullen Burst Strength (ASTM D3786 -80a) 400 psi min. AOS (ASTM D4751) 20-45 (U.S. standard sieve size) • Consider early installation of the first lift of asphalt in areas that will paved; this can be used as a stabilized entrance. Also consider the installation of excess concrete as a stabilized entrance. During large concrete pours, excess concrete is often available for this purpose. • Hog fuel (wood -based mulch) may be substituted for or combined with quarry spalls in areas that will not be used for permanent roads. Hog fuel is generally less effective at stabilizing construction entrances and should be used only at sites where the amount of traffic is very limited. Hog fuel is not recommended for entrance stabilization in urban areas. The effectiveness of hog fuel is highly variable and it generally requires more maintenance than quarry spalls. The inspector may at any time require the use of quarry spalls if the hog fuel is not preventing sediment from being tracked onto pavement or if the hog fuel is being carried onto pavement. Hog fuel is prohibited in permanent roadbeds because organics in the subgrade soils cause degradation of the subgrade support over time. • Fencing (see BMPs C103 and C104) shall be installed as necessary to restrict traffic to the construction entrance. 4-8 Volume ll — Construction Stormwater Pollution Prevention February 2005 2% Slope - 5:1 Slope r-154 r-15 5:1 Slope 2" Schedule 40 11/2" schedule 40 for sprayers • 2% 1.1 a loope\ Wheel Wash Plan 20' Elevation View 15 Slope 50' Water level Section A -A N.T.S. Figure 4.3 Wheel Wash Notes: 1. Asphalt construction entrance 6 in. asphalt treated base (ATB). 2. 3 -inch trash pump with floats on the suction hose. 3. Midpoint spray nozzles, if needed. 4. 6 -inch sewer pipe with butterfly valves. Bottom one is a drain. Locate top pipe's invert 1 foot above bottom of wheel wash. 5. 8 foot x 8 foot sump with 5 feet of catch. Build so can be cleaned with trackhoe. 6. Asphalt curb on the low road side to direct water back to pond. 7. 6 -inch sleeve under road. 8. Ball valves. 9. 15 foot. ATB apron to protect ground from splashing water. February 2005 Volume Il – Construction Stormwater Pollution Prevention 4-11 BMP C107: Construction Road/Parking Area Stabilization Purpose Conditions of Use Stabilizing subdivision roads, parking areas, and other onsite vehicle transportation routes immediately after grading reduces erosion caused by construction traffic or runoff. • Roads or parking areas shall be stabilized wherever they are constructed, whether permanent or temporary, for use by construction traffic. • Fencing (see BMPs C103 and C104) shall be installed, if necessary, to limit the access of vehicles to only those roads and parking areas that are stabilized. Ir' Design and • On areas that will receive asphalt as part of the project, install the first 1 , Installation lift as soon as possible. Specifications • A 6 -inch depth of 2- to 4 -inch crushed rock, gravel base, or crushed surfacing base course shall be applied immediately after grading or L utility installation. A 4 -inch course of asphalt treated base (ATB) may also be used, or the road/parking area may be paved. It may also be possible to use cement or calcium chloride for soil stabilization. If cement or cement kiln dust is used for roadbase stabilization, pH } monitoring and BMPs are necessary to evaluate and minimize the effects on stormwater. If the area will not be used for permanent roads, parking areas, or structures, a 6 -inch depth of hog fuel may also be used, but this is likely to require more maintenance. Whenever possible, construction roads and parking areas shall be placed on a firm, compacted subgrade. • Temporary road gradients shall not exceed 15 percent. Roadways shall be carefully graded to drain. Drainage ditches shall be provided on each side of the roadway in the case of a crowned section, or on one side in the case of a super -elevated section. Drainage ditches shall be directed to a sediment control BMP. • Rather than relying on ditches, it may also be possible to grade the road so that runoff sheet -flows into a heavily vegetated area with a well- developed topsoil. Landscaped areas are not adequate. If this area has at least 50 feet of vegetation, then it is generally preferable to use the vegetation to treat runoff, rather than a sediment pond or trap. The 50 feet shall not include wetlands. If runoff is allowed to sheetflow through adjacent vegetated, areas, it is vital to design the roadways and parking areas so that no concentrated runoff is created. • Storm drain inlets shall be protected to prevent sediment -laden water entering the storm drain system (see BMP C220). Maintenance • Inspect stabilized areas regularly, especially after large storm events. Standards • Crushed rock, gravel base, hog fuel, etc. shall be added as required to maintain a stable driving surface and to stabilize any areas that have eroded. • Following construction, these areas shall be restored to pre -construction condition or better to prevent future erosion. -. 4-12 Volume ll — Construction Stormwater Pollution Prevention February 2005 L.J BMP C121: Mulching Purpose The purpose of mulching soils is to provide immediate temporary protection from erosion. Mulch also enhances plant establishment by conserving moisture, holding fertilizer, seed, and topsoil in place, and moderating soil temperatures. There is an enormous variety of mulches that can be used. Only the most common types are discussed in this section. Conditions of Use As a temporary cover measure, mulch should be used: • On disturbed areas that require cover measures for less than 30 days. • As a cover for seed during the wet season and during the hot summer months. fl • During the wet season on slopes steeper than 3H:1V with more than 10 feet of vertical relief. • Mulch may be applied at any time of the year and must be refreshed periodically. Design and For mulch materials, application rates, and specifications, see Table 4.7. Installation Note: Thicknesses may be increased for disturbed areas in or near Specifications sensitive areas or other areas highly susceptible to erosion. Maintenance Standards Mulch used within the ordinary high-water mark of surface waters should be selected to minimize potential flotation of organic matter. Composted organic materials have higher specific gravities (densities) than straw, wood, or chipped material. • The thickness of the cover must be maintained. • Any areas that experience erosion shall be remulched and/or protected with a net or blanket. If the erosion problem is drainage related, then the problem shall be fixed and the eroded area remulched. 4-20 Volume II — Construction Stormwater Pollution Prevention February 2005 n n L_ n r U J C U n C G February 2005 Volume II — Construction Stormwater Pollution Prevention 4-21 Table 4.7 Mulch Standards and Guidelines Mulch Material Quality Standards Application Rates Remarks Straw Air-dried; free from undesirable seed and coarse material. 2"-3" thick; 5 bales per 1000 sf or 2-3 tons per acre Cost-effective protection when applied with adequate thickness. Hand -application generally requires greater thickness than blown straw. The thickness of straw may be reduced by half when used in conjunction with seeding. In windy areas straw must be held in place by crimping, using a tackifier, or covering with netting. Blown straw always has to be held in place with a tackifier as even light winds will blow it away. Straw, however, has several deficiencies that should be considered when selecting mulch materials. It often introduces and/or encourages the propagation of weed species and it has no significant long-term benefits. Straw should be used only if mulches with long-term benefits are unavailable locally. It should also not be used within the ordinary high-water elevation of surface waters (due to flotation). Hydromulch No growth inhibiting factors. Approx. 25-30 lbs per 1000 sf or 1500 - 2000 lbs per acre Shall be applied with hydromulcher. Shall not be used without seed and tackifier unless the application rate is at least doubled. Fibers longer than about'/4-1 inch clog hydromulch equipment. Fibers should be kept to less than 3/4 inch. Composted Mulch and Compost No visible water or dust during handling. Must be purchased from supplier with Solid Waste Handling Permit (unless exempt). 2" thick min.; approx. 100 tons per acre (approx. 800 lbs per yard) More effective control can be obtained by increasing thickness to 3". Excellent mulch for protecting final grades until landscaping because it can be directly seeded or tilled into soil as an amendment. Composted mulch has a coarser size gradation than compost. It is more stable and practical to use in wet areas and during rainy weather conditions. Chipped Site Vegetation Average size shall be several inches. Gradations from fines to 6 inches in length for texture, variation, and interlocking properties. 2" minimum thickness This is a cost-effective way to dispose of debris from clearing and grubbing, and it eliminates the problems associated with burning. Generally, it should not be used on slopes above approx. 10% because of its tendency to be transported by runoff. It is not recommended within 200 feet of surface waters. If seeding is expected shortly after mulch, the decomposition of the chipped vegetation may tie up nutrients important to grass establishment. Wood -based Mulch No visible water or dust during handling. Must be purchased from a supplier with a Solid Waste Handling Permit or one exempt from solid waste regulations. 2" thick; approx. 100 tons per acre (approx. 800 lbs. per cubic yard) This material is often called "hog or hogged fuel." It is usable as a material for Stabilized Construction Entrances (BMP C105) and as a mulch. The use of mulch ultimately improves the organic matter in the soil. Special caution is advised regarding the source and composition of wood - based mulches. Its preparation typically does not provide any weed seed control, so evidence of residual vegetation in its composition or known inclusion of weed plants or seeds should be monitored and prevented (or minimized). February 2005 Volume II — Construction Stormwater Pollution Prevention 4-21 BMP C123: Plastic Covering Purpose Plastic covering provides immediate, short-term erosion protection to slopes and disturbed areas. Conditions of • Plastic covering may be used on disturbed areas that require cover Use measures for less than 30 days, except as stated below. • Plastic is particularly useful for protecting cut and fill slopes and stockpiles. Note: The relatively rapid breakdown of most polyethylene sheeting makes it unsuitable for long-term (greater than six months) applications. • Clear plastic sheeting can be used over newly -seeded areas to create a greenhouse effect and encourage grass growth if the hydroseed was installed too late in the season to establish 75 percent grass cover, or if the wet season started earlier than normal. Clear plastic should not be used for this purpose during the summer months because the resulting high temperatures can kill the grass. • Due to rapid runoff caused by plastic sheeting, this method shall not be used upslope of areas that might be adversely impacted by concentrated runoff. Such areas include steep and/or unstable slopes. • While plastic is inexpensive to purchase, the added cost of installation, maintenance, removal, and disposal make this an expensive material, up to $1.50-2.00 per square yard. • Whenever plastic is used to protect slopes, water collection measures must be installed at the base of the slope. These measures include plastic -covered berms, channels, and pipes used to covey clean rainwater away from bare soil and disturbed areas. At no time is clean runoff from a plastic covered slope to be mixed with dirty runoff from a project. • Other uses for plastic include: 1 Temporary ditch liner; 2. Pond liner in temporary sediment pond; 3. Liner for bermed temporary fuel storage area if plastic is not reactive to the type of fuel being stored; 4. Emergency slope protection during heavy rains; and, 5. Temporary drainpipe ("elephant trunk") used to direct water. 4-26 Volume II — Construction Stormwater Pollution Prevention February 2005 n n L. n CI n fl U.J Design and Installation Specifications Maintenance Standards • Plastic slope cover must be installed as follows: 1. Run plastic up and down slope, not across slope; 2. Plastic may be installed perpendicular to a slope if the slope length is less than 10 feet; 3. Minimum of 8 -inch overlap at seams; 4. On long or wide slopes, or slopes subject to wind, all seams should be taped; 5. Place plastic into a small (12 -inch wide by 6 -inch deep) slot trench at the top of the slope and backfill with soil to keep water from flowing underneath; 6. Place sand filled burlap or geotextile bags every 3 to 6 feet along seams and pound a wooden stake through each to hold them in place; 7. Inspect plastic for rips, tears, and open seams regularly and repair immediately. This prevents high velocity runoff from contacting bare soil which causes extreme erosion; 8. Sandbags may be lowered into place tied to ropes. However, all sandbags must be staked in place. • Plastic sheeting shall have a minimum thickness of 0.06 millimeters. • If erosion at the toe of a slope is likely, a gravel berm, riprap, or other suitable protection shall be installed at the toe of the slope in order to reduce the velocity of runoff. • Torn sheets must be replaced and open seams repaired. • If the plastic begins to deteriorate due to ultraviolet radiation, it must be completely removed and replaced. • When the plastic is no longer needed, it shall be completely removed. • Dispose of old tires appropriately. February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-27 BMP C140: Dust Control Purpose Dust control prevents wind transport of dust from disturbed soil surfaces onto roadways, drainage ways, and surface waters. Conditions of Use • In areas (including roadways) subject to surface and air movement of dust where on-site and off-site impacts to roadways, drainage ways, or surface waters are likely. Design and • Vegetate or mulch areas that will not receive vehicle traffic. In areas Installation where planting, mulching, or paving is impractical, apply gravel or Specifications landscaping rock. • Limit dust generation by clearing only those areas where immediate activity will take place, leaving the remaining area(s) in the original condition, if stable. Maintain the original ground cover as long as practical. • Construct natural or artificial windbreaks or windscreens. These may be designed as enclosures for small dust sources. • Sprinkle the site with water until surface is wet. Repeat as needed. To prevent carryout of mud onto street, refer to Stabilized Construction Entrance (BMP C105). • Irrigation water can be used for dust control. Irrigation systems should be installed as a first step on sites where dust control is a concern. • Spray exposed soil areas with a dust palliative, following the manufacturer's instructions and cautions regarding handling and application. Used oil is prohibited from use as a dust suppressant. Local governments may approve other dust palliatives such as calcium chloride or PAM. • PAM (BMP C126) added to water at a rate of 0.5 lbs. per 1,000 gallons of water per acre and applied from a water truck is more effective than water alone. This is due to the increased infiltration of water into the soil and reduced evaporation. In addition, small soil particles are bonded together and are not as easily transported by wind. Adding PAM may actually reduce the quantity of water needed for dust control, especially in eastern Washington. Since the wholesale cost of PAM is about $ 4.00 per pound, this is an extremely cost- effective dust control method. Techniques that can be used for unpaved roads and lots include: • Lower speed limits. High vehicle speed increases the amount of dust stirred up from unpaved roads and lots. n L C n 'I fl I • Upgrade the road surface strength by improving particle size, shape, l and mineral types that make up the surface and base materials. 4-40 Volume 11— Construction Stormwater Pollution Prevention February 2005 r^ Maintenance Standards • Add surface gravel to reduce the source of dust emission. Limit the amount of fine particles (those smaller than .075 mm) to 10 to 20 percent. • Use geotextile fabrics to increase the strength of new roads or roads undergoing reconstruction. • Encourage the use of alternate, paved routes, if available. • Restrict use by tracked vehicles and heavy trucks to prevent damage to road surface and base. • Apply chemical dust suppressants using the admix method, blending the product with the top few inches of surface material. Suppressants may also be applied as surface treatments. • Pave unpaved permanent roads and other trafficked areas. • Use vacuum street sweepers. • Remove mud and other dirt promptly so it does not dry and then turn into dust. • Limit dust -causing work on windy days. • Contact your local Air Pollution Control Authority for guidance and training on other dust control measures. Compliance with the local Air Pollution Control Authority constitutes compliance with this BMP. Respray area as necessary to keep dust to a minimum. February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-41 BMP C150: Materials On Hand Purpose Quantities of erosion prevention and sediment control materials can be kept on the project site at all times to be used for emergency situations such as unexpected. heavy summer rains. Having these materials on-site reduces the time needed to implement BMPs when inspections indicate that existing BMPs are not meeting the Construction SWPPP requirements. In addition, contractors can save money by buying some materials in bulk and storing them at their office or yard. Conditions of Use • Construction projects of any size or type can benefit from having materials on hand. A small commercial development project could have a roll of plastic and some gravel available for immediate protection of bare soil and temporary berm construction. A large earthwork project, such as highway construction, might have several tons of straw, several rolls of plastic, flexible pipe, sandbags, geotextile fabric and steel "T" posts. • Materials are stockpiled and readily available before any site clearing, grubbing, or earthwork begins. A large contractor or developer could keep a stockpile of materials that are available to be used on several projects. • If storage space at the project site is at a premium, the contractor could maintain the materials at their office or yard. The office or yard must be less than an hour from the project site. Design and Depending on project type, size, complexity, and length, materials and Installation quantities will vary. A good minimum that will cover numerous situations Specifications includes: Material Measure Quantity Clear Plastic, 6 mil 100 foot roll 1-2 Drainpipe, 6 or 8 inch diameter 25 foot section 4-6 Sandbags, filled each 25-50 Straw Bales for mulching, approx. 50# each 10-20 Quarry Spalls ton 2-4 Washed Gravel cubic yard 2-4 Geotextile Fabric 100 foot roll 1-2 Catch Basin Inserts each 2-4 Steel "T" Posts each 12-24 Maintenance • All materials with the exception of the quarry spalls, steel "T" posts, Standards and gravel should be kept covered and out of both sun and rain. • Re -stock materials used as needed. 4-42 Volume II — Construction Stormwater Pollution Prevention February 2005 BMP C151: Concrete Handling Purpose Concrete work can generate process water and slurry that contain fine particles and high pH, both of which can violate water quality standards in the receiving water. This BMP is intended to minimize and eliminate concrete process water and slurry from entering waters of the state. Conditions of Use Any time concrete is used, these management practices shall be utilized. Concrete construction projects include, but are not limited to, the following: • Curbs • Sidewalks • Roads • Bridges • Foundations • Floors • Runways Design and • Concrete truck chutes, pumps, and internals shall be washed out only Installation into formed areas awaiting installation of concrete or asphalt. Specifications • Unused concrete remaining in the truck and pump shall be returned to the originating batch plant for recycling. • Hand tools including, but not limited to, screeds, shovels, rakes, floats, and trowels shall be washed off only into formed areas awaiting installation of concrete or asphalt. • Equipment that cannot be easily moved, such as concrete pavers, shall only be washed in areas that do not directly drain to natural or constructed stormwater conveyances. • Washdown from areas such as concrete aggregate driveways shall not drain directly to natural or constructed stormwater conveyances. • When no formed areas are available, washwater and leftover product shall be contained in a lined container. Contained concrete shall be disposed of in a manner that does not violate groundwater or surface water quality standards. Maintenance Standards Containers shall be checked for holes in the liner daily during concrete pours and repaired the same day. February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-43 BMP C152: Sawcutting and Surfacing Pollution Prevention Purpose Conditions of Use Sawcutting and surfacing operations generate slurry and process water that contains fine particles and high pH (concrete cutting), both of which can violate the water quality standards in the receiving water. This BMP is intended to minimize and eliminate process water and slurry from entering waters of the State. Anytime sawcutting or surfacing operations take place, these management practices shall be utilized. Sawcutting and surfacing operations include, but are not limited to, the following: • Sawing • Coring • Grinding • Roughening • Hydro -demolition • Bridge and road surfacing n n II n Design and • Slurry and cuttings shall be vacuumed during cutting and surfacing Installation operations. Specifications • Slurry and cuttings shall not remain on permanent concrete or asphalt fl pavement overnight. u • Slurry and cuttings shall not drain to any natural or constructed �, drainage conveyance. • Collected slurry and cuttings shall be disposed of in a manner that does not violate groundwater or surface water quality standards. n I • Process water that is generated during hydro -demolition, surface roughening or similar operations shall not drain to any natural or constructed drainage conveyance and shall be disposed of in a manner that does not violate groundwater or surface water quality standards. • Cleaning waste material and demolition debris shall be handled and disposed of in a manner that does not cause contamination of water. If the area is swept with a pick-up sweeper, the material must be hauled out of the area to an appropriate disposal site. Maintenance Continually monitor operations to determine whether slurry, cuttings, or Standards process water could enter waters of the state. If inspections show that a violation of water quality standards could occur, stop operations and immediately implement preventive measures such as berms, barriers, secondary containment, and vacuum trucks. n 4-44 Volume II — Construction Stormwater Pollution Prevention February 2005 fl L,' P L� L r J BMP C153: Material Delivery, Storage and Containment Purpose Prevent, reduce, or eliminate the discharge of pollutants from material delivery and storage to the stormwater system or watercourses by minimizing the storage of hazardous materials onsite, storing materials in a designated area, and installing secondary containment. Conditions of Use These procedures are suitable for use at all construction sites with delivery and storage of the following materials: • Petroleum products such as fuel, oil and grease • Soil stabilizers and binders (e.g. Polyacrylamide) • Fertilizers, pesticides and herbicides • Detergents • Asphalt and concrete compounds Design and Installation Specifications • Hazardous chemicals such as acids, lime, adhesives, paints, solvents and curing compounds • Any other material that may be detrimental if released to the environment The following steps should be taken to minimize risk: • Temporary storage area should be located away from vehicular traffic, near the construction entrance(s), and away from waterways or storm drains. • Material Safety Data Sheets (MSDS) should be supplied for all materials stored. Chemicals should be kept in their original labeled containers. • Hazardous material storage on-site should be minimized. • Hazardous materials should be handled as infrequently as possible. • During the wet weather season (Oct 1 — April 30), consider storing materials in a covered area. • Materials should be stored in secondary containments, such as earthen dike, horse trough, or even a children's wading pool for non-reactive materials such as detergents, oil, grease, and paints. Small amounts of material may be secondarily contained in "bus boy" trays or concrete mixing trays. • Do not store chemicals, drums, or bagged materials directly on the ground. Place these items on a pallet and, when possible, in secondary containment. February 2005 Volume II — Construction Stormwater Pollution Prevention 4-45 • If drums must be kept uncovered, store them at a slight angle to reduce ponding of rainwater on the lids to reduce corrosion. Domed plastic covers are inexpensive and snap to the top of drums, preventing water from collecting. Material Storage Areas and Secondary Containment Practices: • Liquids, petroleum products, and substances listed in 40 CFR Parts 110, 117, or 302 shall be stored in approved containers and drums and shall not be overfilled. Containers and drums shall be stored in temporary secondary containment facilities. • Temporary secondary containment facilities shall provide for a spill containment volume able to contain precipitation from a 25 year, 24 hour storm event, plus 10% of the total enclosed container volume of all containers, or 110% of the capacity of the largest container within its boundary, whichever is greater. • Secondary containment facilities shall be impervious to the materials stored therein for a minimum contact time of 72 hours. • Secondary containment facilities shall be maintained free of accumulated rainwater and spills. In the event of spills or leaks, r ,, accumulated rainwater and spills shall be collected and placed into drums. These liquids shall be handled as hazardous waste unless testing determines them to be non -hazardous. • Sufficient separation should be provided between stored containers to allow for spill cleanup and emergency response access. • During the wet weather season (Oct 1 — April 30), each secondary containment facility shall be covered during non -working days, prior to and during rain events. • Keep material storage areas clean, organized and equipped with an ample supply of appropriate spill clean-up material (spill kit). • The spill kit should include, at a minimum: • 1 -Water Resistant Nylon Bag • 3 -Oil Absorbent Socks 3"x 4' • 2 -Oil Absorbent Socks 3"x 10' • 12 -Oil Absorbent Pads 17"x19" • 1 -Pair Splash Resistant Goggles • 3 -Pair Nitrile Gloves • 10 -Disposable Bags with Ties • Instructions P ii 4-46 Volume ll — Construction Stormwater Pollution Prevention February 2005 {7I P 7 �I BMP C160: Certified Erosion and Sediment Control Lead Purpose The project proponent designates at least one person as the responsible representative in charge of erosion and sediment control (ESC), and water quality protection. The designated person shall be the Certified Erosion and Sediment Control Lead (CESCL) who is responsible for ensuring compliance with all local, state, and federal erosion and sediment control and water quality requirements. Conditions of Use A CESCL shall be made available on projects one acre or larger that discharge stormwater to surface waters of the state Specifications • The CESCL shall: • Have a current certificate proving attendance in an erosion and sediment control training course that meets the minimum ESC training and certification requirements established by Ecology (see details below). Ecology will maintain a list of ESC training and certification providers at: www.ecy.wa.gov/programs/wq/stouuwater. OR • Be a Certified Professional in Erosion and Sediment Control (CPESC); for additional information go to: www.cpesc.net • Certification shall remain valid for three years. • The CESCL shall have authority to act on behalf of the contractor or developer and shall be available, on call, 24 hours per day throughout the period of construction. • The Construction SWPPP shall include the name, telephone number, fax number, and address of the designated CESCL. • A CESCL may provide inspection and compliance services for multiple construction projects in the same geographic region. Duties and responsibilities of the CESCL shall include, but are not limited to the following: • Maintaining permit file on site at all times which includes the SWPPP and any associated permits and plans. • Directing BMP installation, inspection, maintenance, modification, and removal. • Updating all project drawings and the Construction SWPPP with changes made. February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-47 • Keeping daily logs, and inspection reports. Inspection reports should include: • Inspection date/time. • Weather information; general conditions during inspection and approximate amount of precipitation since the last inspection. • A summary or list of all BMPs implemented, including observations of all erosion/sediment control structures or practices. The following shall be noted: 1) Locations of BMPs inspected, 2) Locations of BMPs that need maintenance, 3) Locations of BMPs that failed to operate as designed or intended, and 4) Locations of where additional or different BMPs are required. • Visual monitoring results, including a description of discharged stormwater. The presence of suspended sediment, turbid water, discoloration, and oil sheen shall be noted, as applicable. • Any water quality monitoring performed during inspection. • General comments and notes, including a brief description of any BMP repairs, maintenance or installations made as a result of the inspection. • Facilitate, participate in, and take corrective actions resulting from inspections performed by outside agencies or the owner. 4-48 Volume 11 - Construction Stormwater Pollution Prevention February 2005 fl f n n, c_J n n P Lr n P Minimum Requirements for ESC Training and Certification Courses General Requirements 1. The course shall teach the construction stormwater pollution prevention guidance provided in the most recent version of: a. The Washington State Dept. of Ecology Stormwater Management Manual for Western Washington, b. Other equivalent stormwater management manuals approved by Ecology. 2. Upon completion of course, each attendee shall receive documentation of certification, including, at a minimum, a wallet -sized card that certifies completion of the course. Certification shall remain valid for three years. Recertification may be obtained by completing the 8 -hour refresher course or by taking the initial 16 -hour training course again. 3. The initial certification course shall be a minimum of 16 hours (with a reasonable time allowance for lunch, breaks, and travel to and from field) and include a field element and test. a. The field element must familiarize students with the proper installation, maintenance and inspection of common erosion and sediment control BMPs including, but not limited to, blankets, check dams, silt fence, straw mulch, plastic, and seeding. b. The test shall be open book and a passing score is not required for certification. Upon completion of the test, the correct answers shall be provided and discussed. 4. The refresher course shall be a minimum of 8 hours and include a test. a. The refresher course shall include: i. Applicable updates to the Stormwater Management Manual that is used to teach the course, including new or updated BMPs; and ii. Applicable changes to the NPDES General Permit for Construction Activities. b. The refresher course test shall be open book and a passing score is not required for certification. Upon completion of the test, the correct answers shall be provided and discussed. c. The refresher course may be taught using an alternative format (e.g. internet, CD ROM, etc.) if the module is approved by Ecology. Required Course Elements 1. Erosion and Sedimentation Impacts a. Examples/Case studies February 2005 Volume II — Construction Stormwater Pollution Prevention 4-49 2. Erosion and Sedimentation Processes a. Definitions b. Types of erosion c. Sedimentation i. Basic settling concepts ii. Problems with clays/turbidity 3. Factors Influencing Erosion Potential a. Soil b. Vegetation c. Topography d. Climate 4. Regulatory Requirements a. NPDES - Construction Stormwater General Permit b. Local requirements and permits c. Other regulatory requirements 5. Stormwater Pollution Prevention Plan (SWPPP) a. SWPPP is a living document — should be revised as necessary b. 12 Elements of a SWPPP; discuss suggested BMPs (with examples) 1. Mark Clearing Limits 2. Establish Construction Access 3. Control Flow Rates 4. Install Sediment Controls 5. Stabilize Soils 6. Protect Slopes 7. Protect Drain Inlets 8. Stabilize Channels and Outlets 9. Control Pollutants 10. Control De -watering 11. Maintain BMPs 12. Manage the Project 6. Monitoring/Reporting/Recordkeeping a. Site inspections/visual monitoring i. Disturbed areas ii. BMPs iii. Stormwater discharge points b. Water quality sampling/analysis i. Turbidity ii. pH c. Monitoring frequency i. Set by NPDES permit ii. Inactive sites - reduced frequency 4-50 Volume II — Construction Stormwater Pollution Prevention February 2005 d. Adaptive Management i. When monitoring indicates problem, take appropriate action (e.g. install/maintain BMPs) ii. Document the corrective action(s) in SWPPP e. Reporting i. Inspection reports/checklists ii. Discharge Monitoring Reports (DMR) iii. Non-compliance notification Instructor Qualifications 1. Instructors must be qualified to effectively teach the required course elements. 2. At a minimum, instructors must have: a. Current certification as a Certified Professional in Erosion and Sediment Control (CPESC), or b. Completed a training program for teaching the required course elements, or c. The academic credentials and instructional experience necessary for teaching the required course elements. 3. Instructors must demonstrate competent instructional skills and knowledge of the applicable subject matter. February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-51 BMP C162: Scheduling Purpose Conditions of Use Design Considerations Sequencing a construction project reduces the amount and duration of soil exposed to erosion by wind, rain, runoff, and vehicle tracking. The construction sequence schedule is an orderly listing of all major land - disturbing activities together with the necessary erosion and sedimentation control measures planned for the project. This type of schedule guides the contractor on work to be done before other work is started so that serious erosion and sedimentation problems can be avoided. Following a specified work schedule that coordinates the timing of land - disturbing activities and the installation of control measures is perhaps the most cost-effective way of controlling erosion during construction. The removal of surface ground cover leaves a site vulnerable to accelerated erosion. Construction procedures that limit land clearing, provide timely installation of erosion and sedimentation controls, and restore protective cover quickly can significantly reduce the erosion potential of a site. • Avoid rainy periods. • Schedule projects to disturb only small portions of the site at any one time. Complete grading as soon as possible. Immediately stabilize the disturbed portion before grading the next portion. Practice staged seeding in order to revegetate cut and fill slopes as the work progresses. 4-54 Volume 11— Construction Stormwater Pollution Prevention February 2005 fl t i � I n fl L 1 L_ 4.2 Runoff Conveyance and Treatment BMPs BMP C200: Interceptor Dike and Swale Purpose Conditions of Use Design and Installation Specifications Provide a ridge of compacted soil, or a ridge with an upslope swale, at the top or base of a disturbed slope or along the perimeter of a disturbed construction area to convey stormwater. Use the dike and/or swale to intercept the runoff from unprotected areas and direct it to areas where erosion can be controlled. This can prevent storm runoff from entering the work area or sediment -laden runoff from leaving the construction site. Where the runoff from an exposed site or disturbed slope must be conveyed to an erosion control facility which can safely convey the stormwater. • Locate upslope of a construction site to prevent runoff from entering disturbed area. • When placed horizontally across a disturbed slope, it reduces the amount and velocity of runoff flowing down the slope. • Locate downslope to collect runoff from a disturbed area and direct it to a sediment basin. • Dike and/or swale and channel must be stabilized with temporary or permanent vegetation or other channel protection during construction. • Channel requires a positive grade for drainage; steeper grades require channel protection and check dams. • Review construction for areas where overtopping may occur. • Can be used at top of new fill before vegetation is established. • May be used as a permanent diversion channel to carry the runoff. • Sub -basin tributary area should be one acre or less. • Design capacity for the peak flow from a 10 -year, 24-hour storm, assuming a Type 1A rainfall distribution, for temporary facilities. Alternatively, use 1.6 times the 10 -year, 1 -hour flow indicated by an approved continuous runoff model. For facilities that will also serve on a permanent basis, consult the local government's drainage requirements. Interceptor dikes shall meet the following criteria: Top Width 2 feet minimum. Height 1.5 feet minimum on berm. Side Slope 2:1 or flatter. Grade Depends on topography, however, dike system minimum is 0.5%, maximum is 1%. Compaction Minimum of 90 percent ASTM D698 standard proctor. February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-57 Horizontal Spacing of Interceptor Dikes: Average Slope Slope Percent Flowpath Length P 20H:1V or less 3-5% 300 feet Li (10 to 20)H:1V 5-10% 200 feet (4 to 10)H:1 V 10-25% 100 feet (2 to 4)H:1 V 25-50% 50 feet L Stabilization depends on velocity and reach Slopes <5% Seed and mulch applied within 5 days of dike construction (see BMP C121, Mulching). L Slopes 5 - 40% Dependent on runoff velocities and dike materials. Stabilization should be done immediately using either sod or riprap or other measures to avoid erosion. • The upslope side of the dike shall provide positive drainage to the dike outlet. No erosion shall occur at the outlet. Provide energy dissipation measures as necessary. Sediment -laden runoff must be released through a sediment trapping facility. • Minimize construction traffic over temporary dikes. Use temporary cross culverts for channel crossing. Interceptor swales shall meet the following criteria: Bottom Width 2 feet minimum; the bottom shall be level. Depth 1 -foot minimum. Side Slope 2:1 or flatter. Grade Maximum 5 percent, with positive drainage to a suitable outlet (such as a sediment pond). Stabilization Seed as per BMP C120, Temporary and Permanent Seeding, or BMP C202, Channel Lining, 12 inches thick of riprap pressed into the bank and extending at least 8 inches vertical from the bottom. • Inspect diversion dikes and interceptor swales once a week and after every rainfall. Immediately remove sediment from the flow area. • Damage caused by construction traffic or other activity must be repaired before the end of each working day. n Check outlets and make timely repairs as needed to avoid gully formation. When the area below the temporary diversion dike is permanently stabilized, remove the dike and fill and stabilize the channel to blend with the natural surface. 4-58 Volume II — Construction Stormwater Pollution Prevention February 2005 L_ n n LJ n �J n r BMP C201: Grass -Lined Channels Purpose Conditions of Use To provide a channel with a vegetative lining for conveyance of runoff. See Figure 4.7 for typical grass -lined channels. This practice applies to construction sites where concentrated runoff need: to be contained to prevent erosion or flooding. • When a vegetative lining can provide sufficient stability for the channel cross section and at lower velocities of water (normally dependent on grade). This means that the channel slopes are generally less than 5 percent and space is available for a relatively large cross section. • Typical uses include roadside ditches, channels at property boundaries, outlets for diversions, and other channels and drainage ditches in low areas. • Channels that will be vegetated should be installed before major earthwork and hydroseeded with a bonded fiber matrix (BFM). The vegetation should be well established (i.e., 75 percent cover) before water is allowed to flow in the ditch. With channels that will have high flows, erosion control blankets should be installed over the hydroseed. If vegetation cannot be established from seed before water is allowed in the ditch, sod should be installed in the bottom of the ditch in lieu of hydromulch and blankets. Design and Locate the channel where it can conform to the topography and other Installation features such as roads. Specifications • Locate them to use natural drainage systems to the greatest extent possible. • Avoid sharp changes in alignment or bends and changes in grade. • Do not reshape the landscape to fit the drainage channel. • The maximum design velocity shall be based on soil conditions, type of vegetation, and method of revegetation, but at no times shall velocity exceed 5 feet/second. The channel shall not be overtopped by the peak runoff from a 10 -year, 24-hour storm, assuming a Type lA rainfall distribution." Alternatively, use 1.6 times the 10 -year, 1 -hour flow indicated by an approved continuous runoff model to determine a flow rate which the channel must contain. • Where the grass -lined channel will also function as a permanent stormwater conveyance facility, consultant the drainage conveyance requirements of the local government with jurisdiction. • An established grass or vegetated lining is required before the channel can be used to convey stormwater, unless stabilized with nets or blankets. February 2005 Volume 11— Construction Stormwater Pollution Prevention 4-59 n • If design velocity of a channel to be vegetated by seeding exceeds 2 ft/sec, a temporary channel liner is required. Geotextile or special mulch protection such as fiberglass roving or straw and netting provide stability until the vegetation is fully established. See Figure 4.9. • Check dams shall be removed when the grass has matured sufficiently P to protect the ditch or swale unless the slope of the swale is greater _ than 4 percent. The area beneath the check dams shall be seeded and mulched immediately after dam removal. f • If vegetation is established by sodding, the permissible velocity for -J established vegetation may be used and no temporary liner is needed. • Do not subject grass -lined channel to sedimentation from disturbed areas. Use sediment -trapping BMPs upstream of the channel. • V-shaped grass channels generally apply where the quantity of water is small, such as in short reaches along roadsides. The V-shaped cross section is least desirable because it is difficult to stabilize the bottom where velocities may be high. • Trapezoidal grass channels are used where runoff volumes are large and slope is low so that velocities are nonerosive to vegetated linings. (Note: it is difficult to construct small parabolic shaped channels.) • Subsurface drainage, or riprap channel bottoms, may be necessary on sites that are subject to prolonged wet conditions due to long duration flows or a high water table. • Provide outlet protection at culvert ends and at channel intersections. • Grass channels, at a minimum, should carry peak runoff for temporary construction drainage facilities from the 10 -year, 24-hour storm without eroding. Where flood hazard exists, increase the capacity according to the potential damage. • Grassed channel side slopes generally are constructed 3:1 or flatter to aid in the establishment of vegetation and for maintenance. • Construct channels a minimum of 0.2 foot larger around the periphery to allow for soil bulking during seedbed preparations and sod buildup. Maintenance During the establishment period, check grass -lined channels after every Standards rainfall. • After grass is established, periodically check the channel; check it after every heavy rainfall event. Immediately make repairs. • It is particularly important to check the channel outlet and all road crossings for bank stability and evidence of piping or scour holes. • Remove all significant sediment accumulations to maintain the designed carrying capacity. Keep the grass in a healthy, vigorous condition at all times, since it is the primary erosion protection for the channel. 4-60 Volume Il — Construction Stormwater Pollution Prevention February 2005 t_ 0 C J c J C LJ 0 u C Typical V -Shaped Channel Cross-section 1/ /\/IN,Il/\\ :\\\ Grass -Lined Filter Fabric // 6, 9 /'// (150-225mm) With Rock Center Typical Parabolic Channel Cross -Section VI /i III,/1/G \.\i\\/\// \\ With Channel Liner \,\� .ice Nte \``I\\r. Key in Fabric 6"-9"—>��. .•fi (150-225mm);j7/ Key In Fabric //\\ i /, With Rock Center for Base Flow Typical Trapezoidal Channel Cross -Section volt K// Design Depth c\ !\ Overcut channel 2" (50mm)/� to allow bulkingduring�\\�\\\,` 0.• e seedbed preparation and growth of vegetation. /IVli\ I Filter Fabric ,I if V1/\In,\\ b\II\\� "\ \\\ \\\//. Filter Fabric 1/ \\\i )� \\v\ lr V` �/' //\/�/�`( With Rock Center For Base Flow Figure 4.8 — Typical Grass -Lined Channels February 2005 Volume 11 — Construction Stormwater Pollution Prevention 4-61 V tZ ► I \//\ Overlap 6" (150mm) minimum Excavate Channel to Design Grade and Cross Section .e! ;i9,. i ,j;iii y„; i Design Depth 4,�n' Al,,,,,.., itPP. `ltt,.,i, \V.�.,itiP `sliAti itt \'i1 41I, Al .�i ,i6 umii%i►`` OVERCUT CHANNEL 2"(50mm) TO ALLOW BULKING DURING SEEDBED PREPARATION 6" (150mm) \'..\\ 6" /�\/�\/\� \/// (150mm) /\ Intermittent Check Slot TYPICAL INSTALLATION WITH EROSION CONTROL BLANKETS OR TURF RE/NFORCEMENTMATS Shingle -lap spliced ends or begin new roll in an intermittent check slot Prepare soil and apply seed before installing blankets, mats or other temporary channel liner system NOTES: Longitudinal anchor trench Longitudinal Anchor Trench 0 J u_ mei 1. Design velocities exceeding 2 ft/sec (0.5m/sec) require temporary blankets, mats or similar liners to protect seed and soil until vegetation becomes established. 2. Grass -lined channels with design velocities exceeding 6 ft/sec (2m/sec) should include turf reinforcement mats. Figure 4.9 — Temporary Channel Liners 4-62 Volume 11 — Construction Stormwater Pollution Prevention February 2005 n n : fl L fl l_J n LJ r-, fl LI P BMP C207: Check Dams Purpose Construction of small dams across a swale or ditch reduces the velocity of concentrated flow and dissipates energy at the check dam. Where temporary channels or permanent channels are not yet vegetated, channel lining is infeasible, and velocity checks are required. • Check dams may not be placed in streams unless approved by the State Department of Fish and Wildlife. Check dams may not be placed in wetlands without approval from a permitting agency. • Check dams shall not be placed below the expected backwater from any salmonid bearing water between October 1 and May 31 to ensure that there is no loss of high flow refuge habitat for overwintering juvenile salmonids and emergent salmonid fry. Design and Whatever material is used, the dam should form a triangle when viewed Installation from the side. This prevents undercutting as water flows over the face of Specifications the dam rather than falling directly onto the ditch bottom. Check dams in association with sumps work more effectively at slowing flow and retaining sediment than just a check dam alone. A deep sump should be provided immediately upstream of the check dam. • In some cases, if carefully located and designed, check dams can remain as permanent installations with very minor regrading. They may be left as either spillways, in which case accumulated sediment would be graded and seeded, or as check dams to prevent further sediment from leaving the site. • Check dams can be constructed of either rock or pea -gravel filled bags. Numerous new products are also available for this purpose. They tend to be re -usable, quick and easy to install, effective, and cost efficient. • Check dams should be placed perpendicular to the flow of water. • The maximum spacing between the dams shall be such that the toe of the upstream dam is at the same elevation as the top of the downstream dam. Conditions of Use • Keep the maximum height at 2 feet at the center of the dam. • Keep the center of the check dam at least 12 inches lower than the outer edges at natural ground elevation. • Keep the side slopes of the check dam at 2:1 or flatter. • Key the stone into the ditch banks and extend it beyond the abutments a minimum of 18 inches to avoid washouts from overflow around the dam. February 2005 Volume II — Construction Stormwater Pollution Prevention 4-75 L Pi I I • Use filter fabric foundation under a rock or sand bag check dam. If a blanket ditch liner is used, this is not necessary. A piece of organic or synthetic blanket cut to fit will also work for this purpose. • Rock check dams shall be constructed of appropriately sized rock. The rock must be placed by hand or by mechanical means (no dumping of rock to form dam) to achieve complete coverage of the ditch or swale and to ensure that the center of the dam is lower than the edges. The rock used must be large enough to stay in place given the expected design flow through the channel. • In the case of grass -lined ditches and swales, all check dams and accumulated sediment shall be removed when the grass has matured sufficiently to protect the ditch or swale - unless the slope of the swale is greater than 4 percent. The area beneath the check dams shall be seeded and mulched immediately after dam removal. • Ensure that channel appurtenances, such as culvert entrances below check dams, are not subject to damage or blockage from displaced stones. Figure 4.13 depicts a typical rock check dam. Maintenance Check dams shall be monitored for performance and sediment Standards accumulation during and after each runoff producing rainfall. Sediment shall be removed when it reaches one half the sump depth. • Anticipate submergence and deposition above the check dam and erosion from high flows around the edges of the dam. • If significant erosion occurs between dams, install a protective riprap liner in that portion of the channel. P 4-76 Volume II - Construction Stormwater Pollution Prevention February 2005 P L _r C 0 0 0 ^1 u 0 0 C C View Looking Upstream Og� NOTE: Key stone into channel banks and extend it beyond the abutments a minimum of 18" (0.5m) to prevent flow around dam. Section A - A FLOW 1 24" (0.6m) 18" (0.5m) s 12" (150mm) EW 1T)Q� ovo oeoo0 4 \�op?' ,90'°O°°d •fop o / �� /\ — A LP%oO°. \\/ %\////i //\/ 24" (0.6m) oo kcp \\Z 8' (2.4m) Spacing Between Check Dams 'L' = the distance such that points 'A' and 'B' are of equal elevation. soo c,Ro moo. cY°oo,�a POINT 'A' S 7— POINT 'B' . -,moi �`�o• o�c ,\//\\ \j/\�\\�\\ NOT TO SCALE Figure 4.13 — Check Dams February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-77 BMP C208: Triangular Silt Dike (Geotextile-Encased Check Dam) Purpose Conditions of use Design and Installation Specifications Triangular silt dikes may be used as check dams, for perimeter protection, for temporary soil stockpile protection, for drop inlet protection, or as a temporary interceptor dike. May be used in place of straw bales for temporary check dams in ditches of any dimension. • May be used on soil or pavement with adhesive or staples. • TSDs have been used to build temporary: 1. sediment ponds; 2. diversion ditches; 3. concrete wash out facilities; 4. curbing; 5. water bars; 6. level spreaders; and, 7. berms. Made of urethane foam sewn into a woven geosynthetic fabric. It is triangular, 10 inches to 14 inches high in the center, with a 20 -inch to 28 -inch base. A 2—foot apron extends beyond both sides of the triangle along its standard section of 7 feet. A sleeve at one end allows attachment of additional sections as needed. • Install with ends curved up to prevent water from flowing around the ends. • The fabric flaps and check dam units are attached to the ground with wire staples. Wire staples should be No. 11 gauge wire and should be 200 mm to 300 mm in length. • When multiple units are installed, the sleeve of fabric at the end of the unit shall overlap the abutting unit and be stapled. • Check dams should be located and installed as soon as construction will allow. n ii l - PI Li n n • Check dams should be placed perpendicular to the flow of water. LI • When used as check dams, the leading edge must be secured with rocks, sandbags, or a small key slot and staples. fl • In the case of grass -lined ditches and swales, check dams and accumulated sediment shall be removed when the grass has matured sufficiently to protect the ditch or swale unless the slope of the swale is greater than 4 percent. The area beneath the check dams shall be ' -' seeded and mulched immediately after dam removal. Maintenance • Triangular silt dams shall be monitored for performance and sediment Standards accumulation during and after each runoff producing rainfall. L 4-78 Volume ll — Construction Stormwater Pollution Prevention February 2005 n Sediment shall be removed when it reaches one half the height of the dam. • Anticipate submergence and deposition above the triangular silt dam and erosion from high flows around the edges of the dam. Immediately repair any damage or any undercutting of the dam. February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-79 BMP C209: Outlet Protection Purpose Conditions of use Design and Installation Specifications Outlet protection prevents scour at conveyance outlets and minimizes the potential for downstream erosion by reducing the velocity of concentrated stormwater flows. Outlet protection is required at the outlets of all ponds, pipes, ditches, or other conveyances, and where runoff is conveyed to a natural or manmade drainage feature such as a stream, wetland, lake, or ditch. The receiving channel at the outlet of a culvert shall be protected from erosion by rock lining a minimum of 6 feet downstream and extending up the channel sides a minimum of 1—foot above the maximum tailwater elevation or 1 -foot above the crown, whichever is higher. For large pipes (more than 18 inches in diameter), the outlet protection lining of the channel is lengthened to four times the diameter of the culvert. • Standard wingwalls, and tapered outlets and paved channels should also be considered when appropriate for permanent culvert outlet protection. (See WSDOT Hydraulic Manual, available through WSDOT Engineering Publications). • Organic or synthetic erosion blankets, with or without vegetation, are usually more effective than rock, cheaper, and easier to install. Materials can be chosen using manufacturer product specifications. ASTM test results are available for most products and the designer can choose the correct material for the expected flow. • With low flows, vegetation (including sod) can be effective. The following guidelines shall be used for riprap outlet protection: 1. If the discharge velocity at the outlet is less than 5 fps (pipe slope less than 1 percent), use 2 -inch to 8 -inch riprap. Minimum thickness is 1 -foot. 2. For 5 to 10 fps discharge velocity at the outlet (pipe slope less than 3 percent), use 24 -inch to 4 -foot riprap. Minimum thickness is 2 feet. 3. For outlets at the base of steep slope pipes (pipe slope greater than 10 percent), an engineered energy dissipater shall be used. • Filter fabric or erosion control blankets should always be used under riprap to prevent scour and channel erosion. • New pipe outfalls can provide an opportunity for low-cost fish habitat improvements. For example, an alcove of low-velocity water can be created by constructing the pipe outfall and associated energy dissipater back from the stream edge and digging a channel, over - widened to the upstream side, from the outfall. Overwintering juvenile and migrating adult salmonids may use the alcove as shelter during 4-80 Volume 11— Construction Stormwater Pollution Prevention February 2005 7 ',I n n L_ n .J Maintenance Standards high flows. Bank stabilization, bioengineering, and habitat features may be required for disturbed areas. See Volume V for more information on outfall system design. • Inspect and repair as needed. • Add rock as needed to maintain the intended function. • Clean energy dissipater if sediment builds up. February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-81 BMP C220: Storm Drain Inlet Protection Purpose To prevent coarse sediment from entering drainage systems prior to permanent stabilization of the disturbed area. Conditions of Use Where storm drain inlets are to be made operational before permanent stabilization of the disturbed drainage area. Protection should be provided for all storm drain inlets downslope and within 500 feet of a disturbed or construction area, unless the runoff that enters the catch basin will be conveyed to a sediment pond or trap. Inlet protection may be used anywhere to protect the drainage system. It is likely that the drainage system will still require cleaning. Table 4.9 lists several options for inlet protection. All of the methods for storm drain inlet protection are prone to plugging and require a high frequency of maintenance. Drainage areas should be limited to 1 acre or less. Emergency overflows may be required where stormwater ponding would cause a hazard. If an emergency overflow is provided, additional end -of -pipe treatment may be required. Table 4.9 Storm Drain Inlet Protetion Applicable for Type of Inlet Emergency Paved/ Earthen Protection Overflow Surfaces Conditions of Use Drop Inlet Protection Excavated drop inlet Yes, protection temporary flooding will occur Block and gravel drop Yes inlet protection Gravel and wire drop No inlet protection Catch basin filters Yes Earthen Paved or Earthen Paved or Earthen Applicable for heavy flows. Easy to maintain. Large area Requirement: 30' X 30'/acre Applicable for heavy concentrated flows. Will not pond. Applicable for heavy concentrated flows. Will pond. Can withstand traffic. Frequent maintenance required. Curb Inlet Protection Curb inlet protection Small capacity with a wooden weir overflow Block and gravel curb Yes inlet protection Paved Paved Used for sturdy, more compact installation. Sturdy, but limited filtration. Culvert Inlet Protection Culvert inlet sediment trap 18 month expected life. 4-82 Volume II — Construction Stormwater Pollution Prevention February 2005 LJ n n i P i I n J L.) n L+ n Design and Excavated Drop Inlet Protection - An excavated impoundment around the Installation storm drain. Sediment settles out of the stormwater prior to entering the Specifications storm drain. • Depth 1-2 ft as measured from the crest of the inlet structure. • Side Slopes of excavation no steeper than 2:1. • Minimum volume of excavation 35 cubic yards. • Shape basin to fit site with longest dimension oriented toward the longest inflow area. • Install provisions for draining to prevent standing water problems. • Clear the area of all debris. • Grade the approach to the inlet uniformly. • Drill weep holes into the side of the inlet. • Protect weep holes with screen wire and washed aggregate. • Seal weep holes when removing structure and stabilizing area. • It may be necessary to build a temporary dike to the down slope side of the structure to prevent bypass flow. Block and Gravel Filter - A barrier formed around the storm drain inlet with standard concrete blocks and gravel. See Figure 4.14. • Height 1 to 2 feet above inlet. • Recess the first row 2 inches into the ground for stability. • Support subsequent courses by placing a 2x4 through the block opening. • Do not use mortar. • Lay some blocks in the bottom row on their side for dewatering the pool. • Place hardware cloth or comparable wire mesh with '/2 -inch openings over all block openings. • Place gravel just below the top of blocks on slopes of 2:1 or flatter. • An alternative design is a gravel donut. • Inlet slope of 3:1. • Outlet slope of 2:1. • 1 -foot wide level stone area between the structure and the inlet. • Inlet slope stones 3 inches in diameter or larger. • Outlet slope use gravel '/2- to 3/4 -inch at a minimum thickness of 1 -foot. February 2005 Volume II — Construction Stormwater Pollution Prevention 4-83 Plan View Drain Grate A o.°oo.� �°Q o0a�°o • ° o • °o°o rl 040 ✓ co *4 o OOoo Concrete Block • Wo, o°oovo iJ°o ° o°o :.600964C.o Gravel Backfill <PZ0 0 00 yyraoQe, 000 ° oo° o4�oa� OC o�o"O�aO0 CDOO000�O°p%OPo°O�o U ° Section A - A Gravel Backfill 4-9 A Concrete Block Overflow Water 00 Water I� II I Drop Inlet \\�\�\���\ Wire Screen or Filter Fabric Ponding Height O$ �o o•Oooc�o. Q'. Ooo Notes: 1. Drop inlet sediment barriers are to be used for small, nearly level drainage areas. (less than 5%) 2. Excavate a basin of sufficient size adjacent to the drop inlet. 3. The top of the structure (ponding height) must be well below the ground elevation downslope to prevent runoff from bypassing the inlet. A temporary dike may be necessary on the dowslope side of the structure. Figure 4.14 - Block and Gravel Filter Gravel and Wire Mesh Filter - A gravel barrier placed over the top of the inlet. This structure does not provide an overflow. • Hardware cloth or comparable wire mesh with 1/4 -inch openings. • Coarse aggregate. • Height 1 -foot or more, 18 inches wider than inlet on all sides. • Place wire mesh over the drop inlet so that the wire extends a minimum of 1 -foot beyond each side of the inlet structure. • If more than one strip of mesh is necessary, overlap the strips. • Place coarse aggregate over the wire mesh. • The depth of the gravel should be at least 12 inches over the entire inlet opening and extend at least 18 inches on all sides. 4-84 Volume ll - Construction Stormwater Pollution Prevention February 2005 Catchbasin Filters - Inserts should be designed by the manufacturer for use at construction sites. The limited sediment storage capacity increases the amount of inspection and maintenance required, which may be daily for heavy sediment loads. The maintenance requirements can be reduced by combining a catchbasin filter with another type of inlet protection. This type of inlet protection provides flow bypass without overflow and therefore may be a better method for inlets located along active rights-of- way. • 5 cubic feet of storage. • Dewatering provisions. • High-flow bypass that will not clog under normal use at a construction site. • The catchbasin filter is inserted in the catchbasin just below the grating. Curb Inlet Protection with Wooden Weir — Barrier formed around a curb inlet with a wooden frame and gravel. • Wire mesh with 1/2 -inch openings. • Extra strength filter cloth. • Construct a frame. • Attach the wire and filter fabric to the frame. • Pile coarse washed aggregate against wire/fabric. • Place weight on frame anchors. Block and Gravel Curb Inlet Protection — Barrier formed around an inlet with concrete blocks and gravel. See Figure 4.14. • Wire mesh with 1/2 -inch openings. • Place two concrete blocks on their sides abutting the curb at either side of the inlet opening. These are spacer blocks. • Place a 2x4 stud through the outer holes of each spacer block to align the front blocks. • Place blocks on their sides across the front of the inlet and abutting the spacer blocks. • Place wire mesh over the outside vertical face. • Pile coarse aggregate against the wire to the top of the barrier. Curb and Gutter Sediment Barrier — Sandbag or rock berm (riprap and aggregate) 3 feet high and 3 feet wide in a horseshoe shape. See Figure 4.16. • Construct a horseshoe shaped berm, faced with coarse aggregate if using riprap, 3 feet high and 3 feet wide, at least 2 feet from the inlet. • Construct a horseshoe shaped sedimentation trap on the outside of the berm sized to sediment trap standards for protecting a culvert inlet. February 2005 Volume 11 — Construction Stormwater Pollution Prevention 4-85 Maintenance • Catch basin filters should be inspected frequently, especially after Standards storm events. If the insert becomes clogged, it should be cleaned or replaced. • For systems using stone filters: If the stone filter becomes clogged with sediment, the stones must be pulled away from the inlet and cleaned or replaced. Since cleaning of gravel at a construction site may be difficult, an alternative approach would be to use the clogged stone as fill and put fresh stone around the inlet. • Do not wash sediment into storm drains while cleaning. Spread all excavated material evenly over the surrounding land area or stockpile and stabilize as appropriate. 4-86 Volume II - Construction Stormwater Pollution Prevention February 2005 Plan View Back of Sidewalk Catch Basin Back of Curb 2x4 Wood Stud Concrete Block Curb Inlet Q d O� .O4po Oa Q� o� 06 d Oo°pper°moo oa 5So • Wire Screen Filter Fabric Section A - A 3/4" Drain Gravel (20mm) 3/4" Drain Gravel (20mm) Ponding Height Overflo Concrete Block Concrete Block Curb Inlet Wire Screen or Filter Fabric \\//\�/\�/\/\ �/, / \\ Catch Basin 4 Wood Stud (100x50 Timber Stud) NOTES: 1. Use block and gravel type sediment barrier when curb inlet is located in gently sloping street segment, where water can pond and allow sediment to separate from runoff. 2. Barrier shall allow for overflow from severe storm event. 3. Inspect barriers and remove sediment after each storm event. Sediment and gravel must be removed from the traveled way immediately. Figure 4.15 — Block and Gravel Curb Inlet Protection February 2005. Volume 11— Construction Stormwater Pollution Prevention 4-87 Plan View Back of Sidewalk RUNOFF Burlap Sacks to Overlap onto Curb RUNOFF SPILLWAY 4' V Gravel Filled Sandbags Stacked Tightly Catch Basin Curb Inlet Back of Curb) NOTES: 1. Place curb type sediment barriers on gently sloping street segments, where water can pond and allow sediment to separate from runoff. 2. Sandbags of either burlap or woven 'geotextile' fabric, are filled with gravel, layered and packed tightly. 3. Leave a one sandbag gap in the top row to provide a spillway for overflow. 4. Inspect barriers and remove sediment after each storm event. Sediment and gravel must be removed from the traveled way. immediately. Figure 4.16 — Curb and Gutter Barrier 4-88 Volume 11 — Construction Stormwater Pollution Prevention February 2005 LJ P L✓ n H n L BMP C233: Silt Fence Purpose Conditions of Use Design and Installation Specifications Use of a silt fence reduces the transport of coarse sediment from a construction site by providing a temporary physical barrier to sediment and reducing the runoff velocities of overland flow. See Figure 4.19 for details on silt fence construction. Silt fence may be used downslope of all disturbed areas. • Silt fence is not intended to treat concentrated flows, nor is it intended to treat substantial amounts of overland flow. Any concentrated flows must be conveyed through the drainage system to a sediment pond. The only circumstance in which overland flow can be treated solely by a silt fence, rather than by a sediment pond, is when the area draining to the fence is one acre or less and flow rates are less than 0.5 cfs. • Silt fences should not be constructed in streams or used in V-shaped ditches. They are not an adequate method of silt control for anything deeper than sheet or overland flow. Joints in filter fabric shall be spliced at posts. Use staples, wire rings or equivalent to attach fabric to posts II II II II II 11 -11]IIIILIjff I: T ll III 2"x2' by 14 Ga. wire or equivalent, if standard strength fabric used Filter fabric 6' max -I I Minimum 4"x4" trench Post spacing may be increased to 8' if wire backing is used Backfill trench with native soil or 3/4"-1.5" washed gravel 2"x2" wood posts, steel fence posts, or equivalent Figure 4.19 — Silt Fence • Drainage area of 1 acre or less or in combination with sediment basin in a larger site. • Maximum slope steepness (normal (perpendicular) to fence line) 1:1. • Maximum sheet or overland flow path length to the fence of 100 feet. • No flows greater than 0.5 cfs. • The geotextile used shall meet the following standards. All geotextile properties listed below are minimum average roll values (i.e., the test result for any sampled roll in a lot shall meet or exceed the values shown in Table 4.10): 4-94 Volume Il — Construction Stormwater Pollution Prevention February 2005 Table 4.10 Geotextile Standards Polymeric Mesh AOS (ASTM D4751) 0.60 mm maximum for slit film wovens (#30 sieve). 0.30 mm maximum for all other geotextile types (#50 sieve). 0.15 mm minimum for all fabric types (#100 sieve). Water Permittivity (ASTM D4491) 0.02 sec I minimum Grab Tensile Strength (ASTM D4632) 180 lbs. Minimum for extra strength fabric. 100 lbs minimum for standard strength fabric. Grab Tensile Strength (ASTM D4632) 30% maximum Ultraviolet Resistance (ASTM D4355) 70% minimum • Standard strength fabrics shall be supported with wire mesh, chicken wire, 2 -inch x 2 -inch wire, safety fence, or jute mesh to increase the strength of the fabric. Silt fence materials are available that have synthetic mesh backing attached. • Filter fabric material shall contain ultraviolet ray inhibitors and stabilizers to provide a minimum of six months of expected usable construction life at a temperature range of 0°F. to 120°F. • 100 percent biodegradable silt fence is available that is strong, long lasting, and can be left in place after the project is completed, if permitted by local regulations. • Standard Notes for construction plans and specifications follow. Refer to Figure 4.19 for standard silt fence details. The contractor shall install and maintain temporary silt fences at the locations shown in the Plans. The silt fences shall be constructed in the areas of clearing, grading, or drainage prior to starting those activities. A silt fence shall not be considered temporary if the silt fence must function beyond the life of the contract. The silt fence shall prevent soil carried by runoff water from going beneath, through, or over the top of the silt fence, but shall allow the water to pass through the fence. The minimum height of the top of silt fence shall be 2 feet and the maximum height shall be 2'/z feet above the original ground surface. The geotextile shall be sewn together at the point of manufacture, or at an approved location as determined by the Engineer, to form geotextile lengths as required. All sewn seams shall be located at a support post. Alternatively, two sections of silt fence can be overlapped, provided the Contractor can demonstrate, to the satisfaction of the Engineer, that the overlap is long enough and that the adjacent fence sections are close enough together to prevent silt laden water from escaping through the fence at the overlap. February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-95 n Li L n L. P The geotextile shall be attached on the up-slope side of the posts and support system with staples, wire, or in accordance with the manufacturer's recommendations. The geotextile shall be attached to the posts in a manner that reduces the potential for geotextile tearing at the staples, wire, or other connection device. Silt fence back-up support for the geotextile in the form of a wire or plastic mesh is dependent on the properties of the geotextile selected for use. If wire or plastic back-up mesh is used, the mesh shall be fastened securely to the up-slope of the posts with the geotextile being up-slope of the mesh back-up support. The geotextile at the bottom of the fence shall be buried in a trench to a minimum depth of 4 inches below the ground surface. The trench shall be backfilled and the soil tamped in place over the buried portion of the geotextile, such that no flow can pass beneath the fence and scouring can not occur. When wire or polymeric back-up support mesh is used, the wire or polymeric mesh shall extend into the trench a minimum of 3 inches. The fence posts shall be placed or driven a minimum of 18 inches. A minimum depth of 12 inches is allowed if topsoil or other soft subgrade soil is not present and a minimum depth of 18 inches cannot be reached. Fence post depths shall be increased by 6 inches if the fence is located on slopes of 3:1 or steeper and the slope is perpendicular to the fence. If required post depths cannot be obtained, the posts shall be adequately secured by bracing or guying to prevent overturning of the fence due to sediment loading. Silt fences shall be located on contour as much as possible, except at the ends of the fence, where the fence shall be turned uphill such that the silt fence captures the runoff water and prevents water from flowing around the end of the fence. If the fence must cross contours, with the exception of the ends of the fence, gravel check dams placed perpendicular to the back of the fence shall be used to minimize concentrated flow and erosion along the back of the fence. The gravel check dams shall be approximately 1 - foot deep at the back of the fence. It shall be continued perpendicular to the fence at the same elevation until the top of the check dam intercepts the ground surface behind the fence. The gravel check dams shall consist of crushed surfacing base course, gravel backfill for walls, or shoulder ballast. The gravel check dams shall be located every 10 feet along the fence where the fence must cross contours. The slope of the fence line where contours must be crossed shall not be steeper than 3:1. Wood, steel or equivalent posts shall be used. Wood posts shall have minimum dimensions of 2 inches by 2 inches by 3 feet minimum length, and shall be free of defects such as knots, splits, or gouges. 4-96 Volume 11— Construction Stormwater Pollution Prevention February 2005 Steel posts shall consist of either size No. 6 rebar or larger, ASTM A 120 steel pipe with a minimum diameter of 1 -inch, U, T, L, or C shape steel posts with a minimum weight of 1.35 lbs./ft. or other steel posts having equivalent strength and bending resistance to the post sizes listed. The spacing of the support posts shall be a maximum of 6 feet. Fence back-up support, if used, shall consist of steel wire with a maximum mesh spacing of 2 inches, or a prefabricated polymeric mesh. The strength of the wire or polymeric mesh shall be equivalent to or greater than 180 lbs. grab tensile strength. The polymeric mesh must be as resistant to ultraviolet radiation as the geotextile it supports. • Silt fence installation using the slicing method specification details follow. Refer to Figure 4.20 for slicing method details. The base of both end posts must be at least 2 to 4 inches above the top of the silt fence fabric on the middle posts for ditch checks to drain properly. Use a hand level or string level, if necessary, to mark base points before installation. Install posts 3 to 4 feet apart in critical retention areas and 6 to 7 feet apart in standard applications. Install posts 24 inches deep on the downstream side of the silt fence, and as close as possible to the fabric, enabling posts to support the fabric from upstream water pressure. Install posts with the nipples facing away from the silt fence fabric. Attach the fabric to each post with three ties, all spaced within the top 8 inches of the fabric. Attach each tie diagonally 45 degrees through the fabric, with each puncture at least 1 inch vertically apart. In addition, each tie should be positioned to hang on a post nipple when tightening to prevent sagging. Wrap approximately 6 inches of fabric around the end posts and secure with 3 ties. No more than 24 inches of a 36 -inch fabric is allowed above ground level. The rope lock system must be used in all ditch check applications. The installation should be checked and corrected for any deviation before compaction. Use a flat -bladed shovel to tuck fabric deeper into the ground if necessary. Compaction is vitally important for effective results. Compact the soil immediately next to the silt fence fabric with the front wheel of the tractor, skid steer, or roller exerting at least 60 pounds per square inch. Compact the upstream side first and then each side twice for a total of four trips. February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-97 1 n i L n L .1 C Maintenance Standards • Any damage shall be repaired immediately. • If concentrated flows are evident uphill of the fence, they must be intercepted and conveyed to a sediment pond. • It is important to check the uphill side of the fence for signs of the fence clogging and acting as a barrier to flow and then causing channelization of flows parallel to the fence. If this occurs, replace the fence or remove the trapped sediment. • Sediment deposits shall either be removed when the deposit reaches approximately one-third the height of the silt fence, or a second silt fence shall be installed. • If the filter fabric (geotextile) has deteriorated due to ultraviolet breakdown, it shall be replaced. Pending height max. 24 - Attach fabric to upstream aide of post FLOW Drive over each side of silt fence 2 to 4 times with device exerting zo p.J. or greater 100% compecticl POST SPACING: T max. on open runs 4 max. on pooling POST DEPTH: As much below ground as fabric above g 100% compactloa • \ \\\ \\\ \\\ \\\ /\/\/ fr No more than 24" of a 36" fabric is allowed above ground. ,mi.. Operation • Gather fabric at posts, f needed. • Utilize Wee ties per post, at within top g' of fabric. • Position each tie dagonapy. puncwrMg holes vertically aminimum ofTapait. • Hang each tie one post ripple and tighten securely. Use cable ties (50kn) or sort wire. Roil of sNt fence O t1// �a?��� ��%/ll1%lfi7lt/1111; �y� > 4 4�s"y��. car %..................\' Q ? � OC` ,, .oma .V:;. •� ...., . ,, Horizontal chisel point (76 mm width) Siting blade (18 mm width) Fabric above / ground Completed Instalatlon Vibratory plow is not acceptable because of horizontal compaction Figure 4.20 — Silt Fence Installation by Slicing Method 4-98 Volume ll — Construction Stormwater Pollution Prevention February 2005 BMP C235: Straw Wattles Purpose Straw wattles are temporary erosion and sediment control barriers consisting of straw that is wrapped in biodegradable tubular plastic or similar encasing material. They reduce the velocity and can spread the flow of rill and sheet runoff, and can capture and retain sediment. Straw wattles are typically 8 to 10 inches in diameter and 25 to 30 feet in length. The wattles are placed in shallow trenches and staked along the contour of disturbed or newly constructed slopes. See Figure 4.21 for typical construction details. Conditions of Use • Disturbed areas that require immediate erosion protection. r, • Exposed soils during the period of short construction delays, or over U winter months. • On slopes requiring stabilization until permanent vegetation can be r established. • Straw wattles are effective for one to two seasons. • If conditions are appropriate, wattles can be staked to the ground using willow cuttings for added revegetation. • Rilling can occur beneath wattles if not properly entrenched and water can pass between wattles if not tightly abutted together. Design Criteria • It is critical that wattles are installed perpendicular to the flow direction and parallel to the slope contour. • Narrow trenches should be dug across the slope on contour to a depth of 3 to 5 inches on clay soils and soils with gradual slopes. On loose soils, steep slopes, and areas with high rainfall, the trenches should be dug to a depth of 5 to 7 inches, or 1/2 to 2/3 of the thickness of the wattle. • Start building trenches and installing wattles from the base of the slope and work up. Excavated material should be spread evenly along the uphill slope and compacted using hand tamping or other methods. • Construct trenches at contour intervals of 3 to 30 feet apart depending on the steepness of the slope, soil type, and rainfall. The steeper the slope the closer together the trenches. • Install the wattles snugly into the trenches and abut tightly end to end. Do not overlap the ends. • Install stakes at each end of the wattle, and at 4 -foot centers along entire length of wattle. • If required, install pilot holes for the stakes using a straight bar to drive holes through the wattle and into the soil. • At a minimum, wooden stakes should be approximately 3/4 x 3/4 x 24 inches. Willow cuttings or 3/8 -inch rebar can also be used for stakes. 4-100 Volume II — Construction Stormwater Pollution Prevention February 2005 Maintenance • Stakes should be driven through the middle of the wattle, leaving 2 to 3 Standards inches of the stake protruding above the wattle. • Wattles may require maintenance to ensure they are in contact with soil and thoroughly entrenched, especially after significant rainfall on steep sandy soils. • Inspect the slope after significant storms and repair any areas where wattles are not tightly abutted or water has scoured beneath the wattles. Straw Rolls Must Be Placed Along Slope Contours 10'-25' (3-8m) Spacing Depends on Soil Type and Slope Steepness 3'-4' (1.2m) — IVY •. 1/ Adjacent rolls shall tightly abut )"04 Sediment, organic matter, and native seeds are captured behind the rolls. 3"-5" (75-125mm) 1 Live Stake NOTE: 1. Straw roll installation requires the placement and secure staking of the roll in a trench, 3"-5" (75-125mm) deep, dug on contour. runoff must not be allowed to run under or around roll. not to scale 8"-10" DIA. (200-250mm) 1" X 1" Stake (25 x 25mm) Figure 4.21 — Straw Wattles February 2005 Volume II — Construction Stormwater Pollution Prevention 4-101 BMP C240: Sediment Trap Purpose Conditions of Use A sediment trap is a small temporary ponding area with a gravel outlet used to collect and store sediment from sites cleared and/or graded during construction. Sediment traps, along with other perimeter controls, shall be installed before any land disturbance takes place in the drainage area. Prior to leaving a construction site, stormwater runoff must pass through a sediment pond or trap or other appropriate sediment removal best management practice. Non -engineered sediment traps may be used on-site prior to an engineered sediment trap or sediment pond to provide additional sediment removal capacity. i~ It is intended for use on sites where the tributary drainage area is less than 3 acres, with no unusual drainage features, and a projected build -out time of six months or less. The sediment trap is a temporary measure (with a design life of approximately 6 months) and shall be maintained until the site area is permanently protected against erosion by vegetation and/or r~i structures. Sediment traps and ponds are only effective in removing sediment down to about the medium silt size fraction. Runoff with sediment of finer grades (fine silt and clay) will pass through untreated, emphasizing the �J need to control erosion to the maximum extent first. Whenever possible, sediment -laden water shall be discharged into onsite, relatively level, vegetated areas (see BMP C234 — Vegetated Strip). This is the only way to effectively remove fine particles from runoff unless chemical treatment or filtration is used. This can be particularly useful -.1 after initial treatment in a sediment trap or pond. The areas of release must be evaluated on a site -by -site basis in order to determine appropriate locations for and methods of releasing runoff. Vegetated wetlands shall not be used for this purpose. Frequently, it may be possible to pump water from the collection point at the downhill end of the site to an upslope fl vegetated area. Pumping shall only augment the treatment system, not �. replace it, because of the possibility of pump failure or runoff volume in excess of pump capacity. All projects that are constructing permanent facilities for runoff quantity control should use the rough -graded or final -graded permanent facilities for traps and ponds. This includes combined facilities and infiltration facilities. When permanent facilities are used as temporary sedimentation facilities, the surface area requirement of a sediment trap or pond must be r 1 met. If the surface area requirements are larger than the surface area of the permanent facility, then the trap or pond shall be enlarged to comply with the surface area requirement. The permanent pond shall also be F--, divided into two cells as required for sediment ponds. 4-102 Volume II — Construction Stormwater Pollution Prevention February 2005 u Either a permanent control structure or the temporary control structure (described in BMP C241, Temporary Sediment Pond) can be used. If a permanent control structure is used, it may be advisable to partially restrict the lower orifice with gravel to increase residence time while still allowing dewatering of the pond. A shut-off valve may be added to the control structure to allow complete retention of stormwater in emergency situations. In this case, an emergency overflow weir must be added. A skimmer may be used for the sediment trap outlet if approved by the Local Permitting Authority. Design and • See Figures 4.22 and 4.23 for details. Installation Specifications • If permanent runoff control facilities are part of the project, they should be used for sediment retention. To determine the sediment trap geometry, first calculate the design surface area (SA) of the trap, measured at the invert of the weir. Use the following equation: SA = FS(Q2/Vs) where Q2 = Design inflow based on the peak discharge from the developed 2 -year runoff event from the contributing drainage area as computed in the hydrologic analysis. The 10 -year peak flow shall be used if the project size, expected timing and duration of construction, or downstream conditions warrant a higher level of protection. If no hydrologic analysis is required, the Rational Method may be used. Vs FS = The settling velocity of the soil particle of interest. The 0.02 mm (medium silt) particle with an assumed density of 2.65 g/cm3 has been selected as the particle of interest and has a settling velocity (Vs) of 0.00096 ft/sec. A safety factor of 2 to account for non -ideal settling. Therefore, the equation for computing surface area becomes: SA = 2 x Q2/0.00096 or 2080 square feet per cfs of inflow Note: Even if permanent facilities are used, they must still have a surface area that is at least as large as that derived from the above formula. If they do not, the pond must be enlarged. • To aid in determining sediment depth, all sediment traps shall have a staff gauge with a prominent mark 1 -foot above the bottom of the trap. February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-103 Maintenance Standards • Sediment traps may not be feasible on utility projects due to the limited work space or the short-term nature of the work. Portable tanks may be used in place of sediment traps for utility projects. • Sediment shall be removed from the trap when it reaches 1 -foot in depth. • Any damage to the pond embankments or slopes shall be repaired. T L 3.5'-5' Surface area determined at top of weir 1' 11.5' Min. Flat Bottom T Note: Trap may be formed by berm or by partial or complete excavation 4' Min. I T. ' Min. Overflow j ::': �.: ; : 01 1' Min. \ \ia ,�" - 1.5" 2-4" Rock pRp Washed gravel Geotextile Discharge to stabilized conveyance, outlet, or level spreader Figure 4.22 Cross Section of Sediment Trap 6' Min. I -111-111-111-111—I II -III -III -III -III -111-1 1.4".0.1pOpIjiO812tUTjAO�D• -Io�'�_ o:� a o:�-: Native soil or —1 1 . compacted backfill 1' Min. depth overflow spillway Geotextile .1111 III III 111=11=11-111. I 11 HI 11=1 I I 111_111=1 —ISI ISI—ISI-1I-1�I- I Min. 1' depth 111- 2"-4"' rock 111-111-1_ 111111-1II Min. 1' depth 3/4"-1.5" washed gravel Figure 4.23 Sediment Trap Outlet 4-104 Volume ll — Construction Stormwater Pollution Prevention February 2005 r•l BMP C241: Temporary Sediment Pond Purpose Sediment ponds remove sediment from runoff originating from disturbed areas of the site. Sediment ponds are typically designed to remove sediment no smaller than medium silt (0.02 mm). Consequently, they usually reduce turbidity only slightly. Conditions of Use Prior to leaving a construction site, stormwater runoff must pass through a sediment pond or other appropriate sediment removal best management practice. A sediment pond shall be used where the contributing drainage area is 3 acres or more. Ponds must be used in conjunction with erosion control practices to reduce the amount of sediment flowing into the basin. Design and • Sediment basins must be installed only on sites where failure of the Installation structure would not result in loss of life, damage to homes or Specifications buildings, or interruption of use or service of public roads or utilities. Also, sediment traps and ponds are attractive to children and can be very dangerous. Compliance with local ordinances regarding health and safety must be addressed. If fencing of the pond is required, the type of fence and its location shall be shown on the ESC plan. • Structures having a maximum storage capacity at the top of the dam of 10 acre -ft (435,600 ft3) or more are subject to the Washington Dam Safety Regulations (Chapter 173-175 WAC). • See Figure 4.24, Figure 4.25, and Figure 4.26 for details. • If permanent runoff control facilities are part of the project, they should be used for sediment retention. The surface area requirements of the sediment basin must be met. This may require enlarging the permanent basin to comply with the surface area requirements. If a permanent control structure is used, it may be advisable to partially restrict the lower orifice with gravel to increase residence time while still allowing dewatering of the basin. • Use of infiltration facilities for sedimentation basins during construction tends to clog the soils and reduce their capacity to infiltrate. If infiltration facilities are to be used, the sides and bottom of the facility must only be rough excavated to a minimum of 2 feet above final grade. Final grading of the infiltration facility shall occur only when all contributing drainage areas are fully stabilized. The infiltration pretreatment facility should be fully constructed and used with the sedimentation basin to help prevent clogging. • Determining Pond Geometry Obtain the discharge from the hydrologic calculations of the peak flow for the 2 -year runoff event (Q2). The 10 -year peak flow shall be used if the project size, expected timing and duration of construction, or downstream conditions warrant a higher level of protection. If no hydrologic analysis is required, the Rational Method may be used. February 2005 Volume II — Construction Stormwater Pollution Prevention 4-105 Determine the required surface area at the top of the riser pipe with the equation: SA = 2 x Q2/0.00096 or 2080 square feet per cfs of inflow See BMP C240 for more information on the derivation of the surface area calculation. The basic geometry of the pond can now be determined using the following design criteria: • Required surface area SA (from Step 2 above) at top of riser. • Minimum 3.5 -foot depth from top of riser to bottom of pond. • Maximum 3:1 interior side slopes and maximum 2:1 exterior slopes. The interior slopes can be increased to a maximum of 2:1 if fencing is provided at or above the maximum water surface. • One foot of freeboard between the top of the riser and the crest of the emergency spillway. • Flat bottom. • Minimum 1 -foot deep spillway. • Length -to -width ratio between 3:1 and 6:1. • Sizing of Discharge Mechanisms. The outlet for the basin consists of a combination of principal and emergency spillways. These outlets must pass the peak runoff expected from the contributing drainage area for a 100 -year storm. If, due to site conditions and basin geometry, a separate emergency spill -way is not feasible, the principal spillway must pass the entire peak runoff expected from the 100 -year storm. However, an attempt to provide a separate emergency spillway should always be made. The runoff calculations should be based on the site conditions during construction. The flow through the dewatering orifice cannot be utilized when calculating the 100 -year storm elevation because of its potential to become clogged; therefore, available spillway storage must begin at the principal spillway riser crest. The principal spillway designed by the procedures contained in this standard will result in some reduction in the peak rate of runoff. However, the riser outlet design will not adequately control the basin discharge to the predevelopment discharge limitations as stated in Minimum Requirement #7: Flow Control. However, if the basin for a permanent stormwater detention pond is used for a temporary sedimentation basin, the control structure for the permanent pond can be used to maintain predevelopment discharge limitations. The size of the basin, the expected life of the construction project, the anticipated downstream effects and the anticipated weather conditions during construction, should be considered to determine the need of additional discharge control. See Figure 4.28 for riser inflow curves. 4-106 Volume ll — Construction Stormwater Pollution Prevention February 2005 Key divider into slope to prevent flow arourpittit 4.2 The pond length shall be 3 to 6 times the maximum pond width Inflow ii Emergency overflow spillwa Silt fence or equivalent divider Note: Pond may be formed by berm or by partial or complete excavation Discharge to stabilized I conveyance, outlet, or level spreader Figure 4.24 — Sediment Pond Plan View Riser pipe (principal spillway) Crest of open at top with trash rack emergenc Dewatering device (see riser detail) spillway 6' min. Width i' MW. Llai1=1tI l Wire -backed silt fence staked haybales wrapped with filter fabric, or equivalent divider rAm _ t Arta -tG i�11-! I ltlil — l — I _ Discharge to stabilized Dewatering Concrete base conveyance outlet or orifice (see riser detail) level spreader Embankment compacted 95% ervious materials such as gravel or clean sand shall not be used Figure 4.25 — Sediment Pond Cross Section Polyethylene cap Perforated polyethylene drainage tubing, diameter min. 2" larger than dewatering orifice. Tubing shall comply with ASTM F667 and AASHTO M294 Provide adequate strapping 3.5" min. Dewatering orifice, schedule, 40 steel stub min. Diameter as per calculations 18" min. 6" min. r--- Concrete ba I--- 2X riser dia. Min. Alternatively, metal stakes and wire may be used to prevent flotation Figure 4.26 — Sediment Pond Riser Detail February 2005 Volume II — Construction Stormwater Pollution Prevention 4-107 Q (cubic feet per second) 100 10 1 72 54 48 ,s .4,07/4"°.°.°') 42 ' 33 30 27 24 15 ui 12 10 1 10 HEAD IN FEET (measured from crest of riser) 0we4=9.739 DH 312 Q orifice= 3.782 D 2H 1/2 Q in cfs, D and H in feet Slope change occurs at weir -orifice transition Figure 4.27 — Riser Inflow Curves 4-108 Volume ll — Construction Stormwater Pollution Prevention February 2005 n I n Principal Spillway: Determine the required diameter for the principal spillway (riser pipe). The diameter shall be the minimum necessary to pass the pre -developed 10 -year peak flow (Q10). Use Figure 4.28 to determine this diameter (h = 1 -foot). Note: A permanent control structure may be used instead of a temporary riser. Emergency Overflow Spillway: Determine the required size and design of the emergency overflow spillway for the developed 100 -year peak flow using the method contained in Volume III. Dewatering Orifice: Determine the size of the dewatering orifice(s) (minimum 1 -inch diameter) using a modified version of the discharge equation for a vertical orifice and a basic equation for the area of a circular orifice. Determine the required area of the orifice with the following equation: _ As (2h) ° A° 0.6x3600Tg os where A0 = orifice area (square feet) As pond surface area (square feet) h = . head of water above orifice (height of riser in feet) T = dewatering time (24 hours) g = acceleration of gravity (32.2 feet/second2) Convert the required surface area to the required diameter D of the orifice: D = 24x,1 A°=13.54x A° VVI The vertical, perforated tubing connected to the dewatering orifice must be at least 2 inches larger in diameter than the orifice to improve flow characteristics. The size and number of perforations in the tubing should be large enough so that the tubing does not restrict flow. The orifice should control the flow rate. • Additional Design Specifications The pond shall be divided into two roughly equal volume cells by a permeable divider that will reduce turbulence while allowing movement of water between cells. The divider shall be at least one- half the height of the riser and a minimum of one foot below the top of the riser. Wire -backed, 2- to 3 -foot high, extra strength filter fabric supported by treated 4"x4"s can be used as a divider. Alternatively, staked straw bales wrapped with filter fabric (geotextile) may be used. If the pond is more than 6 feet deep, a different mechanism must be proposed. A riprap embankment is one acceptable method of separation for deeper ponds. Other designs that satisfy the intent of February 2005 Volume II — Construction Stormwater Pollution Prevention 4-109 this provision are allowed as long as the divider is permeable, structurally sound, and designed to prevent erosion under or around the barrier. To aid in determining sediment depth, one -foot intervals shall be prominently marked on the riser. If an embankment of more than 6 feet is proposed, the pond must comply with the criteria contained in Volume III regarding dam safety for detention BMPs. • The most common structural failure of sedimentation basins is caused by piping. Piping refers to two phenomena: (1) water seeping through fine-grained soil, eroding the soil grain by grain and forming pipes or tunnels; and, (2) water under pressure flowing upward through a granular soil with a head of sufficient magnitude to cause soil grains to lose contact and capability for support. The most critical construction sequences to prevent piping will be: 1. Tight connections between riser and barrel and other pipe connections. 2. Adequate anchoring of riser. 3. Proper soil compaction of the embankment and riser footing. 4. Proper construction of anti -seep devices. Maintenance • Sediment shall be removed from the pond when it reaches 1—foot in Standards depth. • Any damage to the pond embankments or slopes shall be repaired. 4-110 Volume Il — Construction Stormwater Pollution Prevention February 2005 BMP C250: Construction Stormwater Chemical Treatment Purpose Conditions of Use Design and Installation Specifications Turbidity is difficult to control once fine particles are suspended in stormwater runoff from a construction site. Sedimentation ponds are effective at removing larger particulate matter by gravity settling, but are ineffective at removing smaller particulates such as clay and fine silt. Sediment ponds are typically designed to remove sediment no smaller than medium silt (0.02 mm). Chemical treatment may be used to reduce the turbidity of stormwater runoff. Chemical treatment can reliably provide exceptional reductions of turbidity and associated pollutants. Very high turbidities can be reduced to levels comparable to what is found in streams during dry weather. Traditional BMPs used to control soil erosion and sediment loss from sites under development may not be adequate to ensure compliance with the water quality standard for turbidity in the receiving water. Chemical treatment may be required to protect streams from the impact of turbid stormwater discharges, especially when construction is to proceed through the wet season. Formal written approval from Ecology and the Local Permitting Authority is required for the use of chemical treatment regardless of site size. The intention to use Chemical Treatment shall be indicated on the Notice of Intent for coverage under the General Construction Permit. Chemical treatment systems should be designed as part of the Construction SWPPP, not after the fact. Chemical treatment may be used to correct problem sites in limited circumstances with formal written approval from Ecology and the Local Permitting Authority. The SEPA review authority must be notified at the application phase of the project review (or the time that the SEPA determination on the project is performed) that chemical treatment is proposed. If it is added after this stage, an addendum will be necessary and may result in project approval delay. See Appendix II -B for background information on chemical treatment. Criteria for Chemical Treatment Product Use: Chemically treated stormwater discharged from construction sites must be nontoxic to aquatic organisms. The following protocol shall be used to evaluate chemicals proposed for stormwater treatment at construction sites. Authorization to use a chemical in the field based on this protocol does not relieve the applicant from responsibility for meeting all discharge and receiving water criteria applicable to a site. • Treatment chemicals must be approved by EPA for potable water use. • Petroleum-based polymers are prohibited. February 2005 Volume ll — Construction Stormwater Pollution Prevention 4-111 • Prior to authorization for field use, jar tests shall be conducted to demonstrate that turbidity reduction necessary to meet the receiving water criteria can be achieved. Test conditions, including but not limited to raw water quality and jar test procedures, should be indicative of field conditions. Although these small-scale tests cannot be expected to reproduce performance under field conditions, they are indicative of treatment capability. • Prior to authorization for field use, the chemically treated stormwater shall be tested for aquatic toxicity. Applicable procedures defined in Chapter 173-205 WAC, Whole Effluent Toxicity Testing and Limits, shall be used. Testing shall use stormwater from the construction site at which the treatment chemical is proposed for use or a water solution using soil from the proposed site. • The proposed maximum dosage shall be at least a factor of five lower than the no observed effects concentration (NOEC). • The approval of a proposed treatment chemical shall be conditional, subject to full-scale bioassay monitoring of treated stormwater at the construction site where the proposed treatment chemical is to be used. • Treatment chemicals that have already passed the above testing protocol do not need to be reevaluated. Contact the Department of Ecology Regional Office for a list of treatment chemicals that have been evaluated and are currently approved for use. Treatment System Design Considerations: The design and operation of a chemical treatment system should take into consideration the factors that determine optimum, cost-effective performance. It may not be possible to fully incorporate all of the classic concepts into the design because of practical limitations at construction sites. Nonetheless, it is important to recognize the following: • The right chemical must be used at the right dosage. A dosage that is either too low or too high will not produce the lowest turbidity. There is an optimum dosage rate. This is a situation where the adage "adding more is always better" is not the case. • The coagulant must be mixed rapidly into the water to insure proper dispersion. • A flocculation step is important to increase the rate of settling, to produce the lowest turbidity, and to keep the dosage rate as low as possible. • Too little energy input into the water during the flocculation phase results in flocs that are too small and/or insufficiently dense. Too much energy can rapidly destroy floc as it is formed. 4-112 Volume 11— Construction Stormwater Pollution Prevention February 2005 Li Li P II L._ nag 4 (`17 • Since the volume of the basin is a determinant in the amount of energy per unit volume, the size of the energy input system can be too small relative to the volume of the basin. • Care must be taken in the design of the withdrawal system to minimize outflow velocities and to prevent floc discharge. The discharge should be directed through a physical filter such as a vegetated swale that would catch any unintended floc discharge. Treatment System Design: Chemical treatment systems shall be designed as batch treatment systems using either ponds or portable trailer - mounted tanks. Flow-through continuous treatment systems are not allowed at this time. A chemical treatment system consists of the stormwater collection system (either temporary diversion or the permanent site drainage system), a storage pond, pumps, a chemical feed system, treatment cells, and interconnecting piping. The treatment system shall use a minimum of two lined treatment cells. Multiple treatment cells allow for clarification of treated water while other cells are being filled or emptied. Treatment cells may be ponds or tanks. Ponds with constructed earthen embankments greater than six feet high require special engineering analyses. Portable tanks may also be suitable for some sites. The following equipment should be located in an operations shed: • the chemical injector; • secondary containment for acid, caustic, buffering compound, and treatment chemical; • emergency shower and eyewash, and • monitoring equipment which consists of a pH meter and a turbidimeter. Sizing Criteria: The combination of the storage pond or other holding area and treatment capacity should be large enough to treat stormwater during multiple day storm events. It is recommended that at a minimum the storage pond or other holding area should be sized to hold 1.5 times the runoff volume of the 10 -year, 24-hour storm event. Bypass should be provided around the chemical treatment system to accommodate extreme storm events. Runoff volume shall be calculated using the methods presented in Volume 3, Chapter 2. If no hydrologic analysis is required for the site, the Rational Method may be used. Primary settling should be encouraged in the storage pond. A forebay with access for maintenance may be beneficial. There are two opposing considerations in sizing the treatment cells. A larger cell is able to treat a larger volume of water each time a batch is February 2005 Volume 11— Construction Storm water Pollution Prevention 4-113 P ii processed. However, the larger the cell the longer the time required to empty the cell. A larger cell may also be less effective at flocculation and therefore require a longer settling time. The simplest approach to sizing the treatment cell is to multiply the allowable discharge flow rate times the desired drawdown time. A 4 -hour drawdown time allows one batch per cell per 8 -hour work period, given 1 hour of flocculation followed by two hours of settling. The permissible discharge rate governed by potential downstream effect can be used to calculate the recommended size of the treatment cells. The following discharge flow rate limits shall apply: • If the discharge is directly or indirectly to a stream, the discharge flow rate shall not exceed 50 percent of the peak flow rate of the 2 -year, 24- hour event for all storm events up to the 10 -year, 24-hour event. • If discharge is occurring during a storm event equal to or greater than the 10 -year, 24-hour event, the allowable discharge rate is the peak flow rate of the 10 -year, 24-hour event. • Discharge to a stream should not increase the stream flow rate by more __� than 10 percent. • If the discharge is directly to a lake, a major receiving water listed in M Appendix C of Volume I, or to an infiltration system, there is no discharge flow limit. • If the discharge is to a municipal storm drainage system, the allowable discharge rate may be limited by the capacity of the public system. It may be necessary to clean the municipal storm drainage system prior ` '! to the start of the discharge to prevent scouring solids from the drainage system. • Runoff rates shall be calculated using the methods presented in Volume 3, Chapter 2 for the predeveloped condition. If no hydrologic analysis is required for the site, the Rational Method may be used. Maintenance Monitoring: The following monitoring shall be conducted. Test results Standards shall be recorded on a daily log kept on site: Operational Monitoring • pH, conductivity (as a surrogate for alkalinity), turbidity and temperature of the untreated stormwater • Total volume treated and discharged • Discharge time and flow rate n • Type and amount of chemical used for pH adjustment • Amount of polymer used for treatment • Settling time L 4-114 Volume 11— Construction Stormwater Pollution Prevention February 2005 L_J T —1 U Compliance Monitoring • pH and turbidity of the treated stormwater • pH and turbidity of the receiving water Biomonitoring Treated stormwater shall be tested for acute (lethal) toxicity. Bioassays shall be conducted by a laboratory accredited by Ecology, unless otherwise approved by Ecology. The performance standard for acute toxicity is no statistically significant difference in survival between the control and 100 percent chemically treated stormwater. Acute toxicity tests shall be conducted with the following species and protocols: • Fathead minnow, Pimephales promelas (96 hour static -renewal test, method: EPA/600/4-90/027F). Rainbow trout, Oncorhynchus mykiss (96 hour static -renewal test, method: EPA/600/4-90/027F) may be used as a substitute for fathead minnow. • Daphnid, Ceriodaphnia dubia, Daphnia pulex, or Daphnia magna (48 hour static test, method: EPA/600/4-90/027F). All toxicity tests shall meet quality assurance criteria and test conditions in the most recent versions of the EPA test method and Ecology Publication # WQ-R-95-80, Laboratory Guidance and Whole Effluent Toxicity Test Review Criteria. Bioassays shall be performed on the first five batches and on every tenth batch thereafter, or as otherwise approved by Ecology. Failure to meet the performance standard shall be immediately reported to Ecology. Discharge Compliance: Prior to discharge, each batch of treated stormwater must be sampled and tested for compliance with pH and turbidity limits. These limits may be established by the water quality standards or a site-specific discharge permit. Sampling and testing for other pollutants may also be necessary at some sites. Turbidity must be within 5 NTUs of the background turbidity. Background is measured in the receiving water, upstream from the treatment process discharge point. pH must be within the range of 6.5 to 8.5 standard units and not cause a change in the pH of the receiving water of more than 0.2 standard units. It is often possible to discharge treated stormwater that has a lower turbidity than the receiving water and that matches the pH. Treated stormwater samples and measurements shall be taken from the discharge pipe or another location representative of the nature of the treated stormwater discharge. Samples used for determining compliance with the water quality standards in the receiving water shall not be taken February 2005 Volume 11— Construction Stormwater Pollution Prevention 4-115 t_J �I from the treatment pond prior to decanting. Compliance with the water quality standards is determined in the receiving water. I' Operator Training: Each contractor who intends to use chemical treatment shall be trained by an experienced contractor on an active site for at least 40 hours. Standard BMPs: Surface stabilization BMPs should be implemented on site to prevent significant erosion. All sites shall use a truck wheel wash to prevent tracking of sediment off site. Sediment Removal And Disposal: • Sediment shall be removed from the storage or treatment cells as necessary. Typically, sediment removal is required at least once during a wet season and at the decommissioning of the cells. I , Sediment remaining in the cells between batches may enhance the ` settling process and reduce the required chemical dosage. • Sediment may be incorporated into the site away from drainages. n II n L n LJ 4-116 Volume II — Construction Stormwater Pollution Prevention February 2005 BMP C251: Construction Stormwater Filtration Purpose Filtration removes sediment from runoff originating from disturbed areas of the site. Conditions of Use Design and Installation Specifications Traditional BMPs used to control soil erosion and sediment loss from sites under development may not be adequate to ensure compliance with the water quality standard for turbidity in the receiving water. Filtration may be used in conjunction with gravity settling to remove sediment as small as fine silt (0.5 µm). The reduction in turbidity will be dependent on the particle size distribution of the sediment in the stormwater. In some circumstances, sedimentation and filtration may achieve compliance with the water quality standard for turbidity. Unlike chemical treatment, the use of construction stormwater filtration does not require approval from Ecology. Filtration may also be used in conjunction with polymer treatment in a portable system to assure capture of the flocculated solids. Background Information Filtration with sand media has been used for over a century to treat water and wastewater. The use of sand filtration for treatment of stormwater has developed recently, generally to treat runoff from streets, parking lots, and residential areas. The application of filtration to construction stormwater treatment is currently under development. Two types of filtration systems may be applied to construction stormwater treatment: rapid and slow. Rapid sand filters are the typical system used for water and wastewater treatment. They can achieve relatively high hydraulic flow rates, on the order of 2 to 20 gpm/sf, because they have automatic backwash systems to remove accumulated solids. In contrast, slow sand filters have very low hydraulic rates, on the order of 0.02 gpm/sf, because they do not have backwash systems. To date, slow sand filtration has generally been used to treat stormwater. Slow sand filtration is mechanically simple in comparison to rapid sand filtration but requires a much larger filter area. Filtration Equipment. Sand media filters are available with automatic backwashing features that can filter to 50 gm particle size. Screen or bag filters can filter down to 5 gm. Fiber wound filters can remove particles down to 0.5 gm. Filters should be sequenced from the largest to the smallest pore opening. Sediment removal efficiency will be related to particle size distribution in the stormwater. Treatment Process Description. Stormwater is collected at interception point(s) on the site and is diverted to a sediment pond or tank for removal of large sediment and storage of the stormwater before it is treated by the February 2005 Volume ll — Construction Storm water Pollution Prevention 4-117 filtration system. The stormwater is pumped from the trap, pond, or tank through the filtration system in a rapid sand filtration system. Slow sand filtration systems are designed as flow through systems using gravity. If large volumes of concrete are being poured, pH adjustment may be necessary. Maintenance Rapid sand filters typically have automatic backwash systems that are Standards triggered by a pre-set pressure drop across the filter. If the backwash water volume is not large or substantially more turbid than the stormwater stored in the holding pond or tank, backwash return to the pond or tank may be appropriate. However, land application or another means of treatment and disposal may be necessary. • Screen, bag, and fiber filters must be cleaned and/or replaced when they become clogged. • Sediment shall be removed from the storage and/or treatment ponds as necessary. Typically, sediment removal is required once or twice during a wet season and at the decommissioning of the ponds. 4-118 Volume ll — Construction Stormwater Pollution Prevention February 2005 n� fl n L _I n l.i n r7 7 T l�l n n Storm water Pollution Prevention Plan Appendix C — Alternative Construction BMPs Reference: Volume II Construction Stormwater Pollution Prevention of Stormwater Management Manual for Western Washington (SWMMWW 2005) The following includes a list of possible alternative BMPs for each of the 12 elements not described in the main SWPPP text. This list can be referenced in the event a BMP for a specific element is not functioning as designed and an alternative BMP needs to be implemented. Element #1 - Mark Clearing Limits ✓ Preserve existing vegetation — BMP C 101 ✓ Buffer Zones — BMP C102 ✓ Stake and Wire Fence — BMP C 104 ✓ Tree Protection during Construction — BMP T101 ✓ Lath and Flagging Element #2 - Establish Construction Access ✓ Wheel Wash — BMP C106 ✓ Construction Road/Parking Area Stabilization — BMP C 107 Element #3 - Control Flow Rates ✓ Sediment Trap — BMP C240 Element #4 - Install Sediment Controls ✓ Straw Bale Barrier — BMP C230 ✓ Brush Barrier — BMP C231 ✓ Gravel Filter Berm — BMP C232 ✓ Vegetated strip — BMP C234 ✓ Straw wattles — BMP C235 ✓ Sediment Trap —BMP C240 ✓ Construction Stormwater Chemical Treatment — BMP C250 Stormwater Pollution Prevention Plan Element #5 - Stabilize Soils ✓ Temporary & Permanent Seeding — BMP C120 ✓ Mulching — BMP C121 ✓ Nets & blankets — BMP C122 ✓ Sodding — BMP C124 ✓ Topsoiling — BMP C125 ✓ Polyacrylamide for Soil Erosion Protection — BMP C126 ✓ Surface Roughening — BMP C130 ✓ Gradient Terraces — BMP C131 ✓ Dust Control — BMP C140 Element #6 - Protect Slopes ✓ Temporary & permanent seeding — BMP C120 ✓ Nets & blankets — BMP C122 ✓ Plastic covering — BMP C123 ✓ Surface Roughening — BMP C130 ✓ Gradient Terraces — BMP C131 ✓ Interceptor dike and swale — BMP C200 ✓ Pipe Slope Drains - BMP C204 ✓ Subsurface Drains — BMP C205 ✓ Level Spreader — BMP C206 Element #8 - Stabilize Channels and Outlets ✓ Channel lining — BMP C202 ✓ Outlet protection — BMP C209 Element #9 — Control Pollutants Element #10 - Control Dewatering ✓ Level Spreader — BMP C206 ✓ Infiltration (Provide Details on The TESC Plan) ✓ Discharge to Sanitary Sewer (Environmental Affairs Approval Required) Element #11 — Maintain BMPs Element #12 — Manage the Projects Stormwater Pollution Prevention Plan Appendix D — General Permit r n n l_J Stormwater Pollution Prevention Plan Appendix E — Site Inspection Forms (and Site Log) The results of each inspection shall be summarized in an inspection report or checklist that is entered into or attached to the site log book. It is suggested that the inspection report or checklist be included in this appendix to keep monitoring and inspection information in one document, but this is optional. However, it is mandatory that this SWPPP and the site inspection forms be kept onsite at all times during construction, and that inspections be performed and documented as outlined below. At a minimum, each inspection report or checklist shall include: fl El J n a. Inspection date/times b. Weather information: general conditions during inspection, approximate amount of precipitation since the last inspection, and approximate amount of precipitation within the last 24 hours. c. A summary or list of all BMPs that have been implemented, including observations of all erosion/sediment control structures or practices. d. The following shall be noted: i. locations of BMPs inspected, ii. locations of BMPs that need maintenance, iii. the reason maintenance is needed, iv. locations of BMPs that failed to operate as designed or intended, and v. locations where additional or different BMPs are needed, and the reason(s) why e. A description of stormwater discharged from the site. The presence of suspended sediment, turbid water, discoloration, and/or oil sheen shall be noted, as applicable. f. A description of any water quality monitoring performed during inspection, and the results of that monitoring. g. General comments and notes, including a brief description of any BMP r repairs, maintenance or installations made as a result of the inspection. h. A statement that, in the judgment of the person conducting the site inspection, the site is either in compliance or out of compliance with the terms and conditions of the SWPPP and the NPDES permit. If the site inspection indicates that the site is out of compliance, the inspection report shall include a summary of the remedial actions required to bring the site back into compliance, as well as a schedule of implementation. Stormwater Pollution Prevention Plan i. Name, title, and signature of person conducting the site inspection; and the following statement: "I certify under penalty of law that this report is true, accurate, and complete, to the best of my knowledge and belief". When the site inspection indicates that the site is not in compliance with any terms and conditions of the NPDES permit, the Permittee shall take immediate action(s) to: stop, contain, and clean up the unauthorized discharges, or otherwise stop the noncompliance; correct the problem(s); implement appropriate Best Management Practices (BMPs), and/or conduct maintenance of existing BMPs; and achieve compliance with all applicable standards and permit conditions. In addition, if the noncompliance causes a threat to human health or the environment, the Permittee shall comply with the Noncompliance Notification requirements in Special Condition S5.F of the permit. fl 7 ,.J n Storm water Pollution Prevention Plan Appendix F- Project Schedule The BMP implementation schedule is driven by the construction schedule. The following provides a sequential list of the proposed construction schedule milestones and the corresponding BMP implementation schedule. The list contains key milestones such as wet season construction. BMP implementation schedule listed below is keyed to proposed phases of the construction project, and reflects differences in BMP installations and inspections that relate to wet season construction. The project site is located west of the Cascade Mountain Crest. As such, the dry season is considered to be from May 1 to September 30 and the wet season is considered to be from October 1 to April 30. • Estimate of Construction start date: 07 / 05 / 2017 • Estimate of Construction finish date: 12 / 31 / 2018 • Dry Season starts: 05 / 01 / 2017 • Mobilize equipment on site: 07 / 05 / 2017 • Mobilize and store all ESC and soil stabilization products (store materials on hand BMP C150): 07 / 05 / 2017 • Install ESC measures: 07 / 05 / 2017 • Begin spoil pile removal: 07 / 05 / 2017 • Install stabilized construction entrance: 07 / 05 / 2017 • Demolish existing building: 08 / 01 / 2017 • Excavate and remove utilities and services: 08 / 01 / 2017 • Begin Restoring site: 09 / 05 / 2017 • Wet Season starts: 10 / 01 / 2017 • End Project: 12 /31 /2017 Stormwater Pollution Prevention Plan Appendix G- Calculations DEPARTMENT OF ECOLOGY State of Washington Notice of Intent Construction Stormwater General Permit Application Type: ❑X New 111 Renewal Permit Number: I. Contact Information NOI 15058 Permittee Honorific: Mr. First Name: W. Scott Last Name: Jackson Company Name: Boeing Title: West Corr Site Services Director Mailing Address: PO Box 3707 # MC46-89 City: Seattle State: WA Zip Code: 98124-2207 Email: william.s.jackson@boeing.com Business Phone: 253-657-3500 Fax: Cell Phone: FILM UBI Number: Site Contact Honorific: Mr. First Name: Raymond Last Name: Power Company Name: Boeing EHS Title: Environmental Scientist Mailing Address: PO Box 3707 # MC67-74 City: Seattle State: WA Zip Code: 98124-2207 Email: raymond.t.power@boeing.com Business Phone: 425-965-2297 Fax: Cell Phone: UBI Number: Site Owner Honorific: First Name: Desimone Company Name: Desimone Trust Oxbow 2601 Mailing Address: 2601 S 102nd St City: Seattle State: Email: william.s.jackson@boeing.com Business Phone: 253-657-3500 Fax: UBI Number: Oxbow Last Title: WA Zip Code: Name: Trust 2601 98168 hone: ' REVIEWED FOReli CODE COMPLIANCE .,.aa.wk..w\.gyp. CORRECTION LTR# Submission ID: 1579230 SEP 21 2017 City of Tukwila BUILD.INGDIVISION n-0 143 RECEIVED CITY OF TUKWILA SEP 0 8 2011 PERMIT CENTER Page 1 of 4 (N' 1` Project Engineer Honorific: Mr. Company Name: Boeing Mailing Address: PO Box 3707 # MC46-24 City: Seattle State: WA Email: gabriel.hess@boeing.com Business Phone: 206-316-7670 Fax: UBI Number: First Name: Gabriel Last Name: Hess Title: Construction Manager Zip Code: 98124-2207 Cell Phone: II. Electronic Discharge Monitoring Reporting You must submit monthly discharge monitoring reports using Ecologys Electronic Discharge Monitoring Reporting (WQWebDMR) system. To sign up for WQWebDMR, or to register a new site, go to www.ecy.wa.gov/stormwater, and click on the "Construction Stormwater" link. You will find information on WQWebDMR under the "WQWebDMR and PARIS" link on the right-hand side. If you are unable to submit your DMRs electronically, you may contact Ecology to raquest a Waiver. Ecology will generally only grant waiver requests to those permittees without internet access. Only a permittee or representative, designated in writing, may request access to or a waiver from WQWebDMR. To have the ability to use the system immediately, you must submit the Electronic Signature Agreement with your application. If you have questions on this process, contact Ecology's WQWebDMR staff at WQWebPortal@ecy.wa.gov or 360-407-7097. Ill. Site Information Site Project Name: Boeing Oxbow Activity Center Street Address or Location Description: 10500 W Marginal Way S City: Tukwila Latitude: 47.508312 Type of Construction Activity: El CI Residential Commercial ❑X Industrial Highway or Road (city, county, state) County: King Longitude: ❑X Utilities (specify): Disconnect water, sewer, electric and gas ❑ Other (specify): Estimated project start date: 6/12/2017 Other Permits None IV. Existing. Site. Conditions -122.293767 Site Acreage Total site/project size: Total disturbed area: Zip Code: 98168 t , 3.7 acres 2.4 acres Total area of soil disturbance for your site/project over the life of the project. Include grading, equipment staging, excavation, borrow pit, material storage areas, dump areas, haul roads, side - cast areas, off-site construction support areas, and all other soil disturbance acreage associated with the project. Estimated project completion date: 12/29/2017 Ara you aware of contaminated soils on this site? ❑ Yes ❑X No 2. Are you aware of groundwater contamination located within the site boundary? ❑ Yes ❑X No tf 3. If you answeredyes to question 1 or 2, will any contaminated soils be distrubed or will any ❑ Yes ❑ No contaminated groundwater be discharged due to the proposed construction activity? Submission ID: 1579230 Page 2 of 4 r If yes, please provide detailed information (as known and readily available) on the nature and extent of the contamination (concentrations, locations, and depth) as well as pollution prevention and/or treatment Best Management Practices (BMPs) proposed to control the discharge of soil and/or groundwater contaminants in stormwater. This should include information that would be included in related portions of the Stormwater Pollution Prevention Plan (SWPPP) that describe how contaminated and potentially contaminated construction stormwater and dewatering water will be managed. You may attach this information separately, if needed V. Stormwater Pollution Prevention Plan (SWPPP) You must develop a SWPPP prior to starting construction. Do not submit your SWPPP with your application. If you answered yes to the questions in Part IV, please submit the information that would be included in related portions of the SWPPP that describe how contaminated and potentially contaminated construction stormwater and dewatering water will be managed. VI. Best Management Practices (BMPs) You must use the BMPs listed in the Stormwater Management Manual for Western Washington or the Stormwater Management Manual for Eastern Washington or other manuals approved by Ecology. Alternatively, you may use demonstrably equivalent BMPs on the basis of permit condition S9.C.4. If you intend to use a BMP at your site that is not included in these manuals, but that you believe meets the definition of a demonstrably equivalent BMP, you must notify the appropriate regional office. (See Definitions in the Construction Stormwater General Permit).* http://www.ecy.wa.gov/programs/wq/stormwater/construction/contacts. htm I *Note that if you receive permit coverage without indicating the preference for a demonstrably equivalent BMP and later decide to use one, you must provide Ecology with notice of the selection of an equivalent BMP no less than 60 days before the intended use of the equivalent BMP. VII. Discharge/Receiving Water Information Indicate whether your site's stormwater and/or dewatering water could enter surface waters, directly and/or indirectly: gX Water will discharge directly or indirectly (through a storm drain system or roadside ditch) into one or more surface waterbodies (wetlands, creeks, lakes, and all other surface waters and water courses). , . If your discharge is to a storm sewer system, provide the name of the operator of the storm sewer system: Water will discharge to ground with 100% infiltration, with no potential to reach surface waters under any conditions. If your project includes dewatering, you must include dewatering plans and discharge locations in your site Stormwater Pollution Prevention Plan. Location of Discharge into Surface Waterbody :Outfall Outfall Description Surface Waterbody Outfall Type Latitude Longitude Number Name OB1 ;Oxbow 1 Duwamish Waterway Surface Water Body 47.507716 -122.29285 VIII. State Environmental Policy Act (SEPA) This Notice of Intent (NOI) is incomplete and cannot be approved until the applicable SEPA requirements under Chapter 197-11 WAC are met. Who is the SEPA lead agency on your site? City of Tukwila Has the SEPA lead agency issued a final decision on your checklist? Yes ❑X No 0 Exempt If No: The NOI is incomplete. Ecology will hold the application until a final SEPA decision is made or the Construction Stormwater NOI public comment period ends, whichever is later. You must notify Ecology once the lead agency has issued a determination. If Yes: Type of SEPA decision issued: Submission ID: 1579230 Page 3 of 4 Date of final SEPA decision: Date when all SEPA-related comment & appeal periods ended or will end: If Exempt: El Watershed Restoration & Fish Habitat Enhancement Exemption (RCW 43.21C.0382). Infill Development Exemption (RCW 43.21C.229). 0 Planned Action Exemption (RCW 43.21C.031). 0 Categorical Exemption. Under what section of the SEPA Rule (WAC 197-11-800) is it exempt? Section: IX. Public Notice You must publish a public notice at least once a week for two consecutive weeks with seven days between publications, in at least a single newspaper of general circulation in the county in which the construction is to take place. Ecology cannot grant permit coverage sooner than the end of the 30 -day public comment period, which begins on the date of the second public notice. Newspaper Name First Public Notice Date Second Public Notice Date Seattle - The Seattle Times 4/21/2017 4/28/2017 X. Certification of Permittees "I certify under penalty of law that this document.and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those directly responsible for gathering information, the information submitted is, to the best of my knowledge and belief, true, accurate, and comple I a re that there are significant penalties for submitting false information, including the possibility of fine and i •riso m or knowing violations." *=� ��..Ai � aileR.7UIis ee Sign. ure Tc -e Reit/ Date Submission ID: 1579230 Page 4 of 4 June 14, 2017 City of Tukwila Department of Community Development JOHN S MURDOCH PO BOX 3707 MC 46-88 SEATTLE, WA 98124 RE: Correction Letter # 1 DEVELOPMENT Permit Application Number D17-0143 BOEING #9-150 - DEMOLITION - 10500 W MARGINAL PL S Dear JOHN S MURDOCH, Allan Ekberg, Mayor Jack Pace, Director This letter is to inform you of corrections that must be addressed before your development permit can be approved. All correction requests from each department must be addressed at the same time and reflected on your drawings. I have enclosed comments from the following departments: BUILDING DEPARTMENT: KC ELLIS at (206)-431-3677 if you have questions regarding these comments. (A) Provide a copy of the asbestos survey and/or asbestos abatement certificate. PLANNING DEPARTMENT: Carol Lumb at 206-431-3661 if you have questions regarding these comments. 0B)• Cel • Planned Action SEPA needed before permit can be issued. Trees are proposed for removal in the shoreline jurisdiction. TMC 18.44.080 B.1. states that trees on properties not undergoing development or re -development may not be removed except those that interfere with access and passage on public trails or that present an imminent hazard to existing structures or the public. Project must be revised to retain all trees that fall within the shoreline jurisdiction. Letter sent to applicant as part of the Planned Action SEPA providing the same information and requesting revision of the Planned Action SEPA as well. A copy of the letter sent to the applicant can be found in Attachments. PW DEPARTMENT: Joanna Spencer at 206-431-2440 if you have questions regarding these comments. 01) Applicant shall submit plans to Valley View Sewer District, phone 206 242-3236 for review and approval of sewer pipes removal and sewer capping. Tukwila sanitary sewer notes shall be replaced with Valley View Sewer 1District notes and details. Submit District's sewer plan approval. ) 2) Submit to Public Works a copy of Valley View Sewer Capping permit. 3) On sheet C2 -DEM note 13 shall reference 2016 edition of King County Surface Water Design as well. 4) The March 16, 2017 Golder Assoc. draft technical memorandum refers to 50% design submittal and shall be updated since submitted drawings call for 90% submittal. 5) Notes on sheets S01R-, 2S01R-, Rfs160R-DEM refer to Si, however S1 was not part of your submittal. 6) Obtain gas capping permit from Puget Sound Energy and electrical capping permit from Seattle City Light. 7) Submit copy of Storm Water Pollution Prevention Plan. 8) Project will require a Notice of Intent (NOI) application form - Construction Storm Water General Permit to the WA State Dept. of Ecology, phone 360-407-6556. `L)9) Applicant shall provide a cost estimate for site work associated with proposed demolition and enter the construction cost of the 1st page of attached Public Works Bulletin A2. CRS RECEIVED CITY OF TUKWILA CORRECTION 13 SEP 0 8 2017 PERMIT CENTER 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 Please address the comments above in an itemized format with applicable revised plans, specifications, and/or other documentation. The City requires that four (4) sets of revised plan pages, specifications and/or other documentation be resubmitted with the appropriate revision block. In order to better expedite your resubmittal, a 'Revision Submittal Sheet' must accompany every resubmittal. I have enclosed one for your convenience. Corrections/revisions must be made in person and will not be accepted through the mail or by a messenger service. If you have any questions, I can be reached at 206-431-3655. Sincerely, Bill Rambo Permit Technician File No. D17-0143 0 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 June 14, 2017 City of Tukwila Department of Community Development JOHN S MURDOCH PO BOX 3707 MC 46-88 SEATTLE, WA 98124 RE: Correction Letter # 1 DEVELOPMENT Permit Application Number D17-0143 BOEING #9-150 - DEMOLITION - 10500 W MARGINAL PL S Dear JOHN S MURDOCH, Allan Ekberg, Mayor Jack Pace, Director This letter is to inform you of corrections that must be addressed before your development permit can be approved. All correction requests from each department must be addressed at the same time and reflected on your drawings. I have enclosed comments from the following departments: BUILDING DEPARTMENT: KC ELLIS at (206)-431-3677 if you have questions regarding these comments. • Provide a copy of the asbestos survey and/or asbestos abatement certificate. PLANNING DEPARTMENT: Carol Lumb at 206-431-3661 if you have questions regarding these comments. • Planned Action SEPA needed before permit can be issued. • Trees are proposed for removal in the shoreline jurisdiction. TMC 18.44.080 B.1. states that trees on properties not undergoing development or re -development may not be removed except those that interfere with access and passage on public trails or that present an imminent hazard to existing structures or the public. Project must be revised to retain all trees that fall within the shoreline jurisdiction. Letter sent to applicant as part of the Planned Action SEPA providing the same information and requesting revision of the Planned Action SEPA as well. A copy of the letter sent to the applicant can be found in Attachments. PW DEPARTMENT: Joanna Spencer at 206-431-2440 if you have questions regarding these comments. • 1) Applicant shall submit plans to Valley View Sewer District, phone 206 242-3236 for review and approval of sewer pipes removal and sewer capping. Tukwila sanitary sewer notes shall be replaced with Valley View Sewer District notes and details. Submit District's sewer plan approval. 2) Submit to Public Works a copy of Valley View Sewer Capping permit. 3) On sheet C2 -DEM note 13 shall reference 2016 edition of King County Surface Water Design as well. 4) The March 16, 2017 Golder Assoc. draft technical memorandum refers to 50% design submittal and shall be updated since submitted drawings call for 90% submittal. 5) Notes on sheets SO1R-, 2S01R-, Rfs160R-DEM refer to SI, however 51 was not part of your submittal. 6) Obtain gas capping permit from Puget Sound Energy and electrical capping permit from Seattle City Light. 7) Submit copy of Storm Water Pollution Prevention Plan. 8) Project will require a Notice of Intent (NOI) application form - Construction Storm Water General Permit to the WA State Dept. of Ecology, phone 360-407-6556. 9) Applicant shall provide a cost estimate for site work associated with proposed demolition and enter the construction cost of the 1st page of attached Public Works Bulletin A2. 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 Please address the comments above in an itemized format with applicable revised plans, specifications, and/or other documentation. The City requires that four (4) sets of revised plan pages, specifications and/or other documentation be resubmitted with the appropriate revision block. In order to better expedite your resubmittal, a 'Revision Submittal Sheet' must accompany every resubmittal. I have enclosed one for your convenience. Corrections/revisions must be made in person and will not be accepted through the mail or by a messenger service. If you have any questions, I can be reached at 206-431-3655. Sincerely, Bill Rambo Permit Technician File No. D17-0143 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 S�RMIT CaORD COPY a PLAN REVIEW/ROUTING SLIP PERMIT NUMBER: D17-0143 DATE: 09/08/17 PROJECT NAME: BOEING #9-150 - DEMOLITION SITE ADDRESS: 10500 W MARGINAL PL S Original Plan Submittal X Response to Correction Letter # 1 Revision # before Permit Issued Revision # after Permit Issued DEPARTMENTS: AT C 01-0--17 Building Division ID I �$ mac. Public Works Fire Prevention Structural C p AP q)O--1 -7 ❑ Planning Division ❑ Permit Coordinator PRELIMINARY REVIEW: Not Applicable ❑ (no approval/review required) REVIEWER'S INITIALS: DATE: 09/12/17 Structural Review Required DATE: APPROVALS OR CORRECTIONS: DUE DATE: 10/10/17 Approved Corrections Required ❑ Approved with Conditions ❑ Denied (corrections entered in Reviews) (ie: Zoning Issues) Notation: REVIEWER'S INITIALS: DATE: Permit Center Use Only CORRECTION LETTER MAILED: Departments issued corrections: Bldg 0 Fire ❑ Ping 0 PW 0 Staff Initials: 12/18/2013 COORS COPY PLAN REVIEW/ROUTING SLIP PERMIT NUMBER: D17-0143 DATE: 05/25/17 PROJECT NAME: BOEING #9-150 - DEMOLITION SITE ADDRESS: 10500 W MARGINAL PL S X Original Plan Submittal Revision # before Permit Issued Response to Correction Letter # Revision # after Permit Issued DEPARTMENTS: Cottz 17 Building Division 1�S Coit� Public Works IM Fire Prevention Structural CPL WR (o4-1 Planning Division ❑ Permit Coordinator PRELIMINARY REVIEW: Not Applicable ❑ (no approval/review required) DATE: 05/30/17 Structural Review Required REVIEWER'S INITIALS: DATE: APPROVALS OR CORRECTIONS: DUE DATE: 06/27/17 Approved Corrections Required ❑ Approved with Conditions ❑ Denied (corrections entered in Reviews) (ie: Zoning Issues) ❑ Notation: REVIEWER'S INITIALS: DATE: Permit Center Use Only V-1 CORRECTION LETTER MAILED: _1 `17 Departments issued corrections: Bldg Fire 0 Ping Staff Initials: 12/18/2013 0 City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Phone: 206-431-3670 Fax: 206-431-3665 Web site: http://www.ci.tukwila.wa.us Revision submittals must be submitted in person at the Permit Center. Revisions will not be accepted through the mail, fax, etc. Date: 0566PGNEek �l1-Plan Check/Permit Number: D17-0143 ❑ Response to Incomplete Letter # ® Response to Correction Letter # 1 ❑ Revision # after Permit is Issued ❑ Revision requested by a City Building Inspector or Plans Examiner Project Name: Boeing #9-150 - Demolition Project Address: 10500 W,/Marginal P1 S \b/AtContact Person: \b/AtkNea -#Phone Number. Summary of Revision: __ _ . I31��1.�1l4�1�«� COPY RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER (253) 3co's�zz • FC iiW W71.-7 exf'e'r (B) 1::W,Q CO49165 ;; rr (e ? RS L P AWti&' C6 -DeN• /1000 71/1515 # VLE NSW 6ry?T o» • poetic ogi<69527:-> ewer Dig rp fieri Awcoekcs egit8rrn. Sheet Number(s): "Cloud" or highlight all areas of revision including date of revision Received at the City of Tukwila Permit Center by: ❑ Entered in TRAKiT on \applications\forms-applications on line\revision submittal Created: 8-13-2004 Revised: City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Phone: 206-431-3670 Fax: 206-431-3665 Web site: http://www.ci.tukwila.wa.us W'Lp ,.,.,.� 'i JY�,.upyfy"�3''w� I ,�, � p.. ro,,yTk �m �f 2b(`'$, i W�iS i`i� P n, K 1' ",u <."§tP :i J' ti. , Ti, ta;:u c LT'.Sg Y ?:y l7 �a�;r;X'r+ aw,;�,+ �+'F �+;'.k,r�,6 %I-4Nir``31Y J 4.: S y'r �,i� i! `« :j . f1:;K4Y„, p"tr�T�. .1Y ..' Q¢i'�{7 1. ;. j 4 ,L U 'dl 1 l :� ,46� !f1U k � REV�SYO SF[TBIVII�TAL �, a€ l,.uYArr. e1.r ',0, ice!t:y I.k'r yi�:a�Si p �i"it al Revision submittals must be submitted in person at the Permit Center. Revisions will not be accepted through the mail, fax, etc. Date: 6 rd-feele2m-Plan Check/Permit Number: D17-0143 O Response to Incomplete Letter # ® Response to Correction Letter # 1 ❑ Revision # after Permit is Issued ❑ Revision requested by a City Building Inspector or Plans Examiner RECEIVED CITY OF TUKWILA SEP 082017 PERMIT CENTER Project Name: Boeing #9-150 - Demolition Project Address: 10500 W Marginal P1 S Contact Person: ASV d• /4 L WPhone Number: '3) 3 522 Summary of Revi on: 6xiiigir(r )--7-CeW gerRro sti C2 -N hits f1A5 7 r�' JED. FPI 19 'r(6) Pr. A% REFER rO /! k6iver ATT oz,itiW 2C1 ex+tiBt i (tf ) �» 5i RefeK is si -Deg, el/s.* 100 li Cc v01 1 1)04110 icgliM -9 nag tzg 7 (-iiHr,r l z) CbMpteriod- g NI 8'1 .-> 5 '#4W fl ratt'tt P( 1 x TA 6 .� Dep. rel J31i(t� ? finer OF .1111TW heiticarrot -' .1-1t )4 ExHierr((t) 5riE WORK - 7vea4 tK< buzern4 A -i - iletvPev. Sheet Number(s): "Cloud" or highlight all areas of revision including date of revision Received at the City of Tukwila Permit Center by: 0 Entered in TRAKiT on \applications\forms-applications on line\revision submittal Created: 8-13-2004 Revised: BOEING COMPANY, THE 0 Washington State Department of Labor & Industries 0 Ilinue . saaiiol Contact Safety & Health Claims & Insurance Page 1 of 9 Search L&I A -Z Index Help My LEI Workplace Rights Trades & Licensing BOEING COMPANY, THE Owner or tradesperson LOHR, MICHAEL Principals LOHR, MICHAEL, SECRETARY MCNERNEY, W (JAMES), PRESIDENT (End: 01/13/2017) WOLTER, CHRISTOPHER, TREASURER (End: 01/16/2015) READ, PAUL, SECRETARY (End: 02/07/2013) SHRONTZ, F A, SECRETARY (End: 02/07/2013) GIVAN, B E, SECRETARY (End: 02/07/2013) KING, C G, SECRETARY (End: 02/07/2013) BEIGHLE, D P, TREASURER (End: 02/07/2013) COLLINS, T J, TREASURER (End: 02/07/2013) BUDINICH, T M, TREASURER (End: 02/07/2013) WOODARD, R B, TREASURER (End: 02/07/2013) CRUZE, D D, TREASURER (End: 02/07/2013) CONDIT, P M, TREASURER (End: 02/07/2013) WA UBI No. 178 005 030 100 N RIVERSIDE M/C 5003-4027 CHICAGO, IL 60606-1596 312-544-2535 Business type Corporation License Verify the contractor's active registration / license / certification (depending on trade) and any past violations. Construction Contractor Active. Meets current requirements. License specialties GENERAL License no. BOEINC*294ML Effective — expiration 07/13/1971— 01/18/2019 Bond Help us improve https://secure.lni.wa.gov/verify/Detail.aspx?UBI=178005030&LIC=BOEINC*294ML&SAW= 9/22/2017 BOEING COMPANY, THE FEDERAL INS CO Bond account no. 81312466 $12,000.00 Received by L&I Effective date 01/14/2002 01/01/2002 Expiration date Until Canceled Insurance Ace American Insurance Company Policy no. HDOG27854990 $1,000,000.00 Received by L&I Effective date 10/05/2016 10/01/2016 Expiration date 10/01/2017 Insurance history Savings No savings accounts during the previous 6 year period. Lawsuits against the bond or savings No lawsuits against the bond or savings accounts during the previous 6 year period. L&I Tax debts 0 No L&I tax debts are recorded for this contractor license during the previous 6 year period, but some debts may be recorded by other agencies. License Violations No license violations during the previous 6 year period. Workers' comp Do you know if the business has employees? If so, verify the business is up-to-date on workers' comp premiums. This company has multiple workers' comp accounts. Active accounts L&I Account ID 700,216-00 Doing business as BOEING COMPANY THE Estimated workers reported N/A L&I account contact (360)902-4817 Track this contractor serif Self Insured. This business is certified to cover its own workers' comp costs. No premiums due. Public Works Strikes and Debarments Verify the contractor is eligible to perform work on public works projects. Contractor Strikes No strikes have been issued against this contractor. Contractors not allowed to bid No debarments have been issued against this contractor. Workplace safety and health Check for any past safety and health violations found on jobsites this business was responsible for. Inspection results date 07/31/2017 Inspection no. 317945013 Location 3003 W Casino Rd Everett, WA 98203 No violations Page 2 of 9 Help us improve https://secure.lni.wa.gov/verify/Detail.aspx?UBI=178005030&LIC=BOEINC*294ML&SAW= 9/22/2017 VICINITY MAP ❑ n 0 14-01 7-127 KING COUNTY AIRPORT OFFICE CENTER (FM) FROM DOWNTOWN SEATTLE 900 PgR�SE�M U) 99 EXIT 158 A EXIT 157 EXIT 157 EAST MARGINAL WAY CORPORATE PARK 99 599 TUKWILA FROM KENT & AUBURN DEVELOPMENTAL CENTER NO SCALE 900 SYM REVISION BY APPROVED DATE SYM A DFMO WO\ REVISIONS No changes shall be made to the scope of work without prior approval of Tukwila Building Division. t4OTZ : Revisions gill require a new plan submittal and may include additional plan review fees. flLIry W464C LING C9 150 620 BOEING DEVELOPMENTAL CENTER 9725 EAST MARGINAL WAY SOUTH TUKWILA, WASHINGTON 98108 AREA MAP 09-150 BUILDING LOCATION NO SCALE REVISION BY APPROVED DATE DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.29.17 PLANNING APPROVED No changes Can be made. to the plans without approval from the Planning Division of DCD Approved D CODE SUMMARY TYPE OF APPLICATION: ❑ NEW ❑ ALTERATION ❑ ADDITION M DEMOLITION BRIEF PROJECT NARRATIVE: THIS PROJECT COVERS THE DEMOLITION OF BUILDING 09-150; REMOVE BUILDING COMPLETELY INCLUDING FOUNDATIONS, SLAB, STRUCTURE AND ALL MECHANICAL AND ELECTRICAL SYSTEMS. REMOVE AND CAP ALL UTILITIES. RE—GRADE SITE AND PLANT NATURAL GRASS. EXISTING PILES AND PILE CAPS TO BE REMOVED IN ACCORDANCE WITH GEOTECHECHNICAL REPORT. PARCEL NUMBER: TOTAL PARCEL AREA: TOTAL PROJECT AREA: AREA OF SOIL DISTURBANCE: REPLACED IMPERVIOUS SURFACE: REMOVED IMPERVIOUS SURFACE: (REPLACED WITH LAWN) ESTIMATED EARTHWORK QUANTITIES: LAND USE CODE GEOTECHNICAL REPORT BUILDING CODES OCCUPANCY GROUP CONSTRUCTION TYPE FLOOR AREAS: BUILDING FOOTPRINT BUILDING GROSS FIRST FLOOR SECOND FLOOR OCCUPANT LOAD BUILDING HEIGHT STORIES HANDICAPPED REQUIREMENTS FIRE PROTECTION SEISMIC ZONE CONTRACTOR & STATE NUMBER: BOEING CONSTRUCTION MANAGER: BOEING PERMIT COORDINATOR: 0423049150 1,504,264 SF (34.53 AC) PER KINC CO. PARCEL DATA APPROXIMATELY 163,160 SF (3.75 AC) APPROXIMATELY 107,000 SF (2.46 AC) APPROXIMATELY 3,000 SF (0.069 AC) APPROXIMATELY 54,822 SF (1.258 AC) CUT 1,200 CY. FILL 1,900 CY TOTAL 700 CY (700 CY NET FILL) M-2 (HEAVY INDUSTRY (CITY OF TUKWILA) GOLDER ASSOCIATES, DATED MARCH 16, 2017 2015 IBC, IFC, U.P.C., AND THE WAC 51-20 AS ADAPTED OR AMENDED BY LOCAL ORDINANCES, AND COMPLIANCE WITH CITY OF TUKWILA ZONING. GROUP B TYPE II 33,700 SQ. FT. 63,700 SQ. FT. 33,700 SQ. FT. 30,000 SQ. FT. FIRST FLOOR — 231 PEOPLE MEZZANINE — NOT TO EXCEED 10 PEOPLE (WHEN ENCLOSED) 35 FT. 2 BARRIER FREE FULLY AUTOMATIC, F/S CLASS 1 SPRINKLERS THROUGHOUT CATEGORY 'D' THE BOEING CO. BOEING* 294ML (01-18-2017) GABRIEL HESS PHONE: 206-316-7870 JOHN MURDOCH PHONE: 253-740-0214 E—MAIL: john.s.murdoch©boeinq.com ACOFFMAN NGINEERS 1601 Fifth Avenue, Suite 900 I Seattle, WA 98101 ph 206.623.0717 I fax 206.624.3775 coffman.com LASTING creativity I results I relationships ACCEPTABILITY THIS DESIGN AND/OR PECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRAWN CEI CHECKED M. SOTURA ENGINEER CHECKED APPROVED APPROVED SEPARATE PERMIT REQUIRED FOR: t;Nlechanical 0 -Electrical al -Plumbing I -Gas Piping City of Tukwila BUILDING DIVISION These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector. Date: By: No. Plan review approval is subject to Approval of construction the violation of of approved F City of Tukwila BUILDING DIVISION CODES AND PERMITS PROJECT TITLE: DEMOLITION OF BUILDING 09-150 JOB NUMBER: W4640620 QUANTITY SUBMITTED: 5 SETS: GENERAL PERMIT (SHELL & CORE) OR STRUCTURAL TENANT IMPROVEMENT ❑ 4 SETS: TENANT IMPROVEMENT (NON—STRUCTURAL) ❑ 3 SETS: FIRE PROTECTION/SPRINKLERS ❑ 2 SETS: TENANT IMPROVEMENT (REVISION) SUBMITTED FOR PERMIT Sc REVIEW: ❑ BUILDING GRADING ELECTRICAL PLUMBING ❑ FIRE PROTECTION MECHANICAL DEMOLITION ❑ CANTILEVER RACKS ❑ STRUCTURAL ""' *TO BE REVIEWED UNDER SEPARATE PERMIT GJ 07 G�7 WASHINGTON STATE NON—RESIDENTIAL ENERGY CODE—APPROACHES COMPLIANCE OPTION ❑ PRESCRIPTIVE ❑ LPA El ANALYSIS I N/A SPECIAL INSPECTIONS REQUIRED: ❑ WELD ❑ REBAR ❑ STRUCTURAL BOLTING ❑ OTHER N/A 07 CG ►7 ❑ CONCRETE El ANCHOR BOLTS ❑ STRUCTURAL OBSERVATION CALCULATIONS TYPE N/A ATTACHED (YES) (NO) GENERAL NOTES CONSTRUCTION SET OF DOCUMENTS, REVIEWED AND STAMPED BY CITY OF TUKWILA MUST BE ON SITE DURING CONSTRUCTION. DO NOT PROCEED WITH CONSTRUCTION WITHOUT ABOVE MENTIONED SET OF DOCUMENTS. 1. VERIFY ALL DIMENSIONS AND CONNECTIONS BEFORE ANY WORK. 2. NOTIFY FACILITY ENGINEERS SHOULD EXISTING CONDITIONS REQUIRE DESIGN REVISIONS. 3. COORDINATE WORK WITH OTHER CRAFTS. 4. RETURN THIS SAME SET TO JOHN MURDOCH AT BLDG. 9-51.2 COL M/2, AFTER COMPLETION OF THIS CONSTRUCTION. TUKWILA BLANKET PERMIT REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2017 5 . City of Tukwila AL BUILDING DIVISION CORRE LTR# TION RECEiv; SEP 12 2L TUKWI PUBLIC WOR: �I 3 ISSUED FOR PERMIT DATE SUBTITLE 06.29.17 06.29.17 COVER SHEET CURRENT REVISION W4640620 SYMBOL RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER DATE 06.29.17 TITLE GENERAL MASTER DEMOLITION OF BUILDING 09-150 BUILDING 09-150 COL. DEV. CENTER, WA SHEET GO-DEM • JOB NO. W4640620 COMP NO. DWG NO. 09—YRD—GO—DEM INDEX OF DRAWINGS INCLUDED IN SET DRAWING NO. SHEET NO. DRAWING TITLE REV DATE GENERAL 09-150—GO—DEM GO—DEM COVER SHEET 05.02.17 O 09-150—G1—DEM G1—DEM INDEX OF DRAWINGS 05.02.17 CIVIL O 09—YRD—C2—DEM C2—DEM S S S 09—YRD—C3—DEM 09—YRD—C4—DEM 09—YRD—05—DEM C3—DEM C4—DEM C5—DEM GENERAL NOTES GENERAL NOTES GENERAL NOTES OVERALL SITE PLAN 05.02.17 05.02.17 05.02.17 05.02.17 s S S I 0 09—YRD—C6— DEM 09—YRD—C31—DEM 09—YRD—C31R—DEM 09—YRD—C162R 09—YRD—C311—FMR C6—DEM C31—DEM C31 R—DEM C162R C311—FMR 0 09—YRD—C311—GR C311—GR TESC PLAN PARTIAL TOPOGRAPHIC SURVEY SITE DEMOLITION PLAN STORM DRAINAGE PLAN — REMOVAL FIRE MAIN & CW SITE PLAN — REMOVAL NATURAL GAS SITE PLAN — REMOVAL 05.02.17 05.02.17 05.02.17 A 05.02.17 A 05.02.17 A 05.02.17 S 09—YRD—C311 —SAN R C311—SANR SANITARY SEWER SITE PLAN — REMOVAL A 05.02.17 S 09—YRD—C171—DEM C171—DEM GRADING AND DRAINAGE PLAN 05.02.17 S 09—YRD—C241—DEM C241—DEM S S S 09—YRD—0500—DEM 09—YRD—0501—DEM 09—YRD—0502—DEM C500—DEM C501—DEM C502—DEM PAVING AND STRIPING PLAN TESC DETAILS SECTIONS AND DETAILS SECTIONS AND DETAILS 05.02.17 05.02.17 05.02.17 05.02.17 LANDSCAPE / IRRIGATION 09—YRD—LS181R LS181R LAWN SPRINKLER PLAN — REMOVAL A 05.02.17 REVISION BY APPROVED DATE SYM REVISION INCLUDED IN SET DRAWING NO. SHEET NO. DRAWING TITLE REV DATE ARCHITECTURAL S S S I S S 109-150—Al —DEM Al —DEM GENERAL NOTES ORIG 109-150-1A01R 1A01R FLOOR PLAN — REMOVAL A 109-15O-2A01R 2A01R FLOOR PLAN — REMOVAL A 109-150-1A1OR 1A1OR FLOOR PLAN — REMOVAL A 109-150-2A1OR 2A1OR HVAC — FLOOR PLAN — REMOVAL A 109-150-1A11R 1A11R FLOOR PLAN — REMOVAL A 109-150-2A11R 2A11R FLOOR PLAN — REMOVAL A 109-150—RFA160R RFA160R ROOF PLAN — REMOVAL B 05.02.17 05.02.17 05.02.17 05.02.17 05.02.17 05.02.17 05.02.17 05.02.17 0 0 0 104 150 A500 A500 SECTIONS & SAILS FRO 109 160 A601 A601 MISC SECTIONS DETAILS FRO 109 150 1000 Al CON.S0L' ATEA PLANS / VOL' TYPES FPO 109 160 1000 A2 FIRST FLOOR NORTI I SECTION FRO 100 150 1000 A-3 FIRST FLOOR — SOUTH SECTION FRO 109 160 1000 A 1 SECOND FLOOR NOR4H SECTION FRO 0 0 0 0 100 150 1000 A 5 SECOND FLOOR — SOUTH SECTION FRO 109 160 1000 A 6 ROOF PLAN & DETAILS FRO 100 160 1000 A7 BUILDING ELEVATIONS FRO 103 150 1000 A8 DUILDINC ELEVATIONS FRO 100 160 1000 A 0 BUILDINC SECTIONS FRO i 103 150 1000 A 10 LOBBY SECTIONS / ELEVATIONS FRO 100 160 1000 A 11 WALL SECTIONS FRO S 109 150 1000 A 12 ENLARCED PLAN LOCKERS, ETC FRO 109 160 1000 A 13 ENLAROED PLAN 2ND PLR. (INT ELEV / ELEVATOR) 0 0 i 100 150 1000 A 11 REFLECTED CEILIPJC 1ST FLOOR NORTH SECTION FRO PRO 103 150 1000 A 15 REFLECTED CEILINC 1ST FLOOR SOUTH SECTION FRO FRO i 0 103 150 1000 109-130 1000 109 150 1000 002.17 05.02.17 0502» 05.02.17 002.17 05.02.17 05 02.17 05.02.17 05.0217 06.02.17 05.0117 06.02.17 05.02.17 06.02.17 05.02.17 06.02.17 06.02.17 05.02.17 06 02 17 A 10 INTERIOR ELEVATIONS FRO 05 02 17 A 10 STAIR NO 1 & RECEPTION DESK LOBBY FRO 05 02 17 S 103 130 1000 109 150 1000 A 20 STAIRS AND DETAILS FRO 06 0217 A 21 FINISH SCHEDULES FRO 05 0217 i 100 130 1000 A 22 DOOR SCHEDULES FRO 06 0217 0 100 160 1000 A 23 DETAILS LOBBY FRO 05,02 17 0 109 150 1000 100 160 1000 A 21 A 25 DETAILS LOBBY DETAILS FRO FRO 05.02.17 05,0217 100 150 1000 A 26 DETAILS FRO 06.02.17 100 160 1000 A 27 DETAILS FPC 17\ 02.17 O 100 150 1000 A 29 DETAILS CORNER BAPIKINC FRO 05.02.17 100 160 1000 A 30 MISC. DETAILS FRO 0`\ 0217 STRUCTURAL O 09-150-51—DEM S1—DEM STRUCTURAL NOTES & ABBREVIATIONS ORIG 05.02.17 O 09-150—SO1R—DEM SO1 R—DEM FOUNDATION PLAN — REMOVAL ORIG 05.02.17 O 09-150-1S01R—DEM 1 S01 R—DEM FIRST FLOOR SLAB PLAN — REMOVAL ORIG 05.02.17 09-150-2S01R—DEM 2S01 R—DEM SECOND FLOOR FRAMING PLAN — REMOVAL ORIG 05.02.17 O 09-150—RFS160R—DEM RFS160R—DEM ROOF FRAMING PLAN — REMOVAL ORIG 05.02.17 109 150 1000 Si FOUNDATION PLAN & CENERAL NOTES FRO 05.02.17 100 130 1000 S 2 FOUNDATION DETAILS FRO 06.02.17 O 103 150 1000 S3 FIRST FLOOR SLAB PLAN & DETAILS FRO 05.02.17 0 0 103 130 1000 100 130 1000 109-130-1000 100 130 1000 103 130 1000 109 130 1000 109 168 1999 S 4 S 5 40ASE rL1rT•E PLAN & BETAiLS SECOND FLOOR FRAMINC PLAN 3-0 J 7 S 8 S 9 S 19 3ECOND FLOOR FRAMING PLAN PARTIAL ROOF FRAMINC PLAN ROOF FRAMINC PLAN PARTIAL ROOF OPENINCE FRAMINC PLAN FRAM I NC ELEVATIONS rRe FRO FRO FRO FRO FRO FRA 85.02.17 06.02.17 05.02.17 06.02.17 06.02.17 06.02.17 96.82,4 7 103- 130 1000 109 150 1000 109 130 1000 103 130 1000 100 150 1000 S 11 S 12 S 13 S 14 S 16 FE MINO SEST18NS FRG 95 9217 FRAMINC CONNECTION DETAILS ROOF DETAILS FRAMING & DRACINC DETAILS CIRT & MISC DETAILS FRO FRO FRO FRO 06.02.17 05.02.17 05.02.17 05.02.17 i 0 109-130-1000 103 150 1000 3-17 S 18 TRU33 BRACING STAIR PLAN & DETAILS FRO FRO 03.02.17 06 02 17 0 100 160 1000 S 10 MASONRY is MISCELLANEOUS DETAILS FRO 05,0217 100 160 1000 5 20 STAIR & MISC DETAILS FPO 05.02.17 BY APPROVED DATE DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.02.17 INCLUDED IN SET DRAWING NO. SHEET NO. DRAWING TITLE REV DATE MECHANICAL 00 160 M1A M1A MECHANICAL LECENDS 0'\ 0217 0 00 160 M1D M1D PIPINC LECENDS 05.02.17 0 00 160 M2 DEM M2 DEM MECHANICAL NOTES —SIC' 05,02 17 0 00 150 UCM3 DEM UCM3 DEM UNDERCROUND COMPOSITE PLAN ORIC 06.02 17 00 160 1M3 DEM 1M3 DEM FIRST FLOOR COMPOSITE PLAN ORIS 05,0217 0 03 130 2M3 DEM 2M3 DEM SECOND FLOOR COMPOSITE PIN ORIC 06 02 17 00 160 RFM3 DEM RFM3 DEM ROOF COOMPOSITE PLAN OP.IG 05,02 17 109 160 1602 M 2 M 2 PLUMBINC PARTIAL PLAN WASTE & VENT FRO 05 02 17 S 103 130 4302 M 3 M 3 WASTE ANS VENT RISER DIACRAM FRO 06.02.17 109 150 1002 M 2 M 2 PLUMBIPIC PARTIAL PLAN COLD & HOT WATER FRO 05.02.17 i 100 130 4002 M 3 M 3 HOT 3. COLD WATER RIDER DIACRAM FRO 06.02.17 0 09 160 M600 M600 MISC. SECTIONS & DETAILS FRO 05.02.17 a 103 000 4071 M 2 M 2 IRRIGATION PLAN FRO 06.02.17 0 109 150 1301 M2 M2 SPRINKLER PLOT PLAN & SECTION FRO 05.02.17 I 109 130 4301 M3 M3 FIRE PROTECTION PLANS 3: DETAILS FRO 06.02.17 i 109 130 4302 M 1 M 1 FIRST FLOOR SOUTH PIPING PLAN & RISER DETAILS FRO 06.02.17 i 109-130-4301—M1. M1 FIR3T 8. SECOND FLOOR NORTH i PIPING PLAN PRO 03.02.17 • 109 130 4332 M 1 M 1 SECOND FLOOR • PIPINC PLAN FRO 06.02.17 i 09-130-1 M11 IN11 IIVAC — FLOOR PLAN FRO 03.02.17 09 150 2M10 2M10 I IVAC FLOOR PLAN FRO 05.02.17 i 09 130 2M11 2M11 I IVAC FLOOR PLAN MRO 05.02.17 0 09 150 RFM10 RFM10 IIVAC ROOF PLAN FRO 05.02.17 S 109 130 4002 M4 M4 PLUMBING PARTIAL PLANS AND DETAILS FRO 05.02.17 0 100 160 1101 M3 M3 HVAC SECTIONS FRO 05.02.17 S 103 150 1152 M2 M2 I IVAC SECTIONS FRO 06.02.17 S 100 160 1101 M1 M1 HVAC DETAILS FRO 05.02.17 ELECTRICAL 00 YRD 1E8 ELECTRICAL SITE PLAN A Or\ 02.17 05.02.17 277/180V DISTRIBUTION 0c\ 02.17 109 —130-2001—E3 [3 120/208V DISTRIBUTION 06.02.17 Or\ 02.17 • 109-130-200 I —Fe EC PAGING --- ADT TELEPHONE — CATV F1R3T FLOOR 05.02.17 ES 109 150 2001 C3 CROUNDINC 05.02.17 109 150 2001 El 0 103 130 2001 El 1 El 0 277V LICHTINC FIRST FLOOR El 1 120V & 277V LICI ITINC FIRST FLOOR 05.02.17 06 02 17 109 150 2001 E30 120/208V POWER FIRST FLOOR 05 02 17 103 130 2001 E31 120/208V POWER FIRST FLOO 06 02 17 109 160 2001 E61 277/180V POWER FIRST FLOOR 05 02 17 103 1,0 2001 E130 [130 SCHEMATIC DETAILS 06 02 17 109 160 2001 E131 El 31 DETAIL SHEET 05.02.17 103 130 2001 E132 SYMBOLS & SCHEDULES 06 02 17 109 130 2002 EC EC PAGING ADT TELEn IONE CATV SECOND FLOOR 06.02.17 109 130 2002 EOA PAGING ADT TELEPHONE CAW SECOND FLOOR 05.02.17 103 130 2002 El 0 [10 109-130 2002 El 1 El 1 05.02.17 1.99 1 20432 E343 120/208V POWER SECOND FLOOR 06 02 17 09 150 1E0 EXTERIOR L101 ITINO PLAN 05.02.17 09 150 1 ECOA 120 VOLT POWER 06.02.17 09 130 1E130 LIGHTINO rAta—BEFAILS 8- MISC DETAILS 05.02.17 09 150 1E131 PRE ALARM AND PACINC DETAILS 05.02.17 03 130 1E132 FIXTURE SCI IEDUL 06 02 17 00 160 2E10A A 05 02 17 00 130 2E10C A 06 02.17 00 160 2E1 LICHTI NC A A5 02 17 00 150 2EC1 120/208V POWER 06.02.17 00 160 2E61A 2E61A DETAIL: EXERCISE ROOM EQUIPMENT PLAN 05.02.17 00 160 2E111 2E111 277/180V POWER A 03 160 RFC150 05002.17 0 00 150 E500 DEM E500—DEM FIRST FLOOR COMPOSITE PLAN ELECTRICAL ORIC 05 C11,17 4/OFFMAN NGINEERS 1601 Fifth Avenue, Suite 900 I Seattle, WA 98101 ph 206.623.0717 I fax 206.624.3775 coffman.com ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRAWN M. BOSILKOV CHECKED M. SOTURA ENGINEER CHECKED APPROVED APPROVED DATE 06.02.17 06.02.17 ISSUE LEGEND NOT YET ISSUED 0 PREVIOUSLY ISSUED, NOT IN THIS ISSUE IN THIS ISSUE PREL ORIG A FRO ISSUED FOR PERMIT PRELIMINARY ISSUE FOR REVIEW OR INFORMATION ONLY NOT FOR CONSTRUCTION ORIGINAL ISSUE FOR PERMIT, BID, PROCUREMENT OR DRAWING REVISION — SEE SPECIFIC DRAWING FOR NATURE .OF FOR REFERENCE ONLY — DRAWING OF RECORD INCUDED TO PROVIDE ADDITIONAL INFORMATION OIL13 REVIEWED FOR CODE COMPLIANCE APPROVED SEP 2 1 2017 City of Tukwila BUILDING DIVISION These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to . errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector. Date: By: elp /7 ,ists( RECEIVED CITY OF TUKWILA SEP 08 2017 PERMIT CENTER SUBTITLE INDEX OF DRAWINGS CURRENT REWSION W4640620 SYMBOL DATE 06 29.17 TITLE GENERAL MASTER DEMOLITION OF BUILDING 09-150 BUILDING 09-150 COL. DEV. CENTER, WA SHEET Gl-DEM JOB NO. COMP NO. DWG NO. ABBREVIATIONS THROUGHOUT THE PLANS ARE ABBREVIATIONS WHICH ARE IN COMMON USE. THE LIST OF ABBREVIATIONS PROVIDED IS NOT INTENDED TO BE COMPLETE OR REPRESENTATIVE OF CONDMONS OR MATERIALS ACTUALLY USED ON THE PROJECT. THE TECHNICAL REPRESENTATIVE WILL DEFINE THE INTENT OF ANY ABBREVIATION IN QUESTION. f ABAN AC ADJ AIR ANSI APPROX ASPH ASTM BIGD BLDG BM BMP BOT CB CHR CHS CL CM CMP COL CONC COND CONN CY CW DEMO DIA DIP DOE DRN DW EA EL, ELEV E EX FH FIRE FF FG FUTR GAS GV HMA HORIZ ID IE INV LF MAX MH MIN MON N N/A NAD NGVD NOM NO. OD OSHA PREFAB PCC PVC PVMT QTY RAD REINF S SD SDCO SDFM SDMH SF, SQ FT SHT SPEC SS SSCO SSS STA STS STD STM SYM TAN TEMP TOP TYP UGP VERT VOL VS W, WTR WSDOT W/ W/0 AND AT APPROXIMATELY ABANDON ASPHALT CONCRETE ADJUST (-ED,-MENT,-ABLE) COMPRESSED AIR AMERICAN NATIONAL STANDARD INSTITUTE APPROXIMATE (-ED, -IVE) ASPHALT AMERICAN SOCIETY FOR TESTING AND MATERIALS BELOW INLET GRATE DEVICE BUILDING BENCH MARK BEST MANAGEMENT PRACTICE BOTTOM CATCH BASIN CHILLED RETURN CHILLED SERVICE CENTERLINE CONSTRUCTION MANAGER/MANAGEMENT CORRUGATED METAL PIPE COLUMN CONCRETE CONDENSATE CONNECTION CUBIC YARD CHILLED WATER DEMOLISH OR DEMOLITION DIAMETER DUCTILE IRON PIPE DEPARTMENT OF ECOLOGY DRAIN DOMESTIC WATER EACH ELEVATION EAST EXISTING FIRE HYDRANT FIRE SUPPRESSION MAIN FINISH FLOOR FINISH GRADE FOR FUTURE USE GAS GATE VALVE HOT MIX ASPHALT HORIZONTAL INSIDE DIAMETER/DIMENSION INVERT ELEVATION INVERT LINEAR FEET MAXIMUM MANHOLE MINIMUM; MINUTE MONUMENT NORTH/NEUTRAL NOT APPLICABLE NORTH AMERICAN DATUM NATIONAL GEODETIC VERTICAL DATUM NOMINAL NUMBER OUTSIDE DIAMETER OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION PREFABRICATED PORTLAND CEMENT CONCRETE POLY VINYL CHLORIDE PAVEMENT QUANTITY RADIUS REINFORCED SOUTH, SLOPE STORM DRAIN STORM DRAIN CLEAN OUT STORM DRAIN FORCE MAIN STORM DRAIN MANHOLE SQUARE FOOT/FEET SHEET SPECIFICATIONS SANITARY SEWER/STAINLESS STEEL SANITARY SEWER CLEANOUT SANITARY SIDE SEWER STATION STORM SEWER STANDARD STEAM SYMMETRICAL TANGENT TEMPORARY TOP OF PAVEMENT TYPICAL UNDERGROUND POWER VERTICAL VOLUME VERSUS WEST/WATER WASHINGTON STATE DEPARTMENT OF TRANSPORTATION WITH WITHOUT C3 -DE C500 DRAWING NUMBER WHERE SHOWN DRAWING NUMBER WHERE TAKEN DETAIL NUMBER C3 -DEM C500 SYM SECTION LETTER DRAWING NUMBER WHERE SHOWN REVISION BY APPROVED MISC. REFERENCE SYMBOLS BOAT NOTE DESCRIBING SPECIFIC FEATURE THAT WILL REMAIN ON THE DRAWINGS AFTER CONSTRUCTION FOR FUTURE REFERENCE FLAG NOTE FOR SPECIFIC CONSTRUCTION DIRECTION PROJECT NOTES 1. NO BOUNDARY WORK WAS PERFORMED, HOWEVER, A TOPOGRAPHIC SURVEY WAS PREPARED BY AXIS SURVEY AND MAPPING ON MARCH 9TH, 2017. 2. THE HORIZONTAL DATUM USED FOR THIS PROJECT IS WASHINGTON STATE (GRID) COORDINATES, NORTH ZONE NAD 83/91 GPS 2011 SMARTNET NORTH AMERICA AND SHALL BE TIED TO ANY TWO CITY OF TUKWILA HORIZONTAL CONTROL MONUMENTS. 3. THE VERTICAL DATUM USED FOR THESE PLANS IS NAVD '88 PER GPS 2011 SMARTNET NORTH AMERICA. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL TRAFFIC CONTROL ON-SITE AND SHALL COORDINATE HIS ACTIVITIES WITH THE OWNER AND ENGINEER A MINIMUM OF TWO (2) WEEKS IN ADVANCE OF THE BEGINNING OF WORK. THE CONTRACTOR IS RESPONSIBLE FOR PROVIDING ALL TRAFFIC CONTROL SIGNS. SAFE VEHICULAR AND PEDESTRIAN ACCESS SHALL BE PROVIDED AT ALL TIMES DURING CONSTRUCTION. SHUTDOWN OF OWNER OPERATION OR ACCESS WILL NOT BE PERMITTED. A MINIMUM OF ONE LANE SHALL REMAIN OPEN AT ALL TIMES DURING CONSTRUCTION. CONTRACTOR SHALL PROVIDE TRAFFIC CONTROL AND STREET MAINTENANCE PLAN FOR PUBLIC WORKS APPROVAL BEFORE IMPLEMENTATION. 5. THE LOCATION OF ALL UTILITIES SHOWN ON THIS PLAN IS APPROXIMATE. THE CONTRACTOR SHALL VERIFY THE EXISTING UTILITIES PRIOR TO EXCAVATION. TO LOCATE UTILITIES, CALL THE UNDERGROUND LOCATE LINE "CALL BEFORE YOU DIG" NUMBER 811. 6. WHERE CONFLICTS OCCUR BETWEEN EXISTING FEATURES AND THE PLACEMENT OF NEW FACILITIES, THEY SHALL BE BROUGHT TO THE ATTENTION OF THE ENGINEER BY THE CONTRACTOR, AND WILL BE RESOLVED BY THE ENGINEER. 7. THE CONTRACTOR FOR THIS PROJECT SHALL MAINTAIN A CLEAN, LEGIBLE SET OF THESE PLANS AND NOTE ALL DEVIATIONS THEREON. UPON COMPLETION OF CONSTRUCTION, THESE DRAWINGS SHALL BE DELIVERED TO THE ENGINEER FOR THE PREPARATION OF RECORD DRAWINGS. 8. THE CONTRACTOR SHALL HAVE THE FOLLOWING DOCUMENTS AT THE JOB SITE AT ALL TIMES DURING CONSTRUCTION: 8.1. CURRENT COPY OF WASHINGTON STATE DEPARTMENT OF TRANSPORTATION (WSDOT) STANDARD PLANS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION (PUBLICATION M22-01) 8.2. 2016 EDITION OF WASHINGTON STATE DEPARTMENT OF TRANSPORTATION (WSDOT) STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION (PUBLICATION M41-10) 8.3. FOURTH EDITION (2010) CITY OF TUKWILA PUBLIC WORKS DEPARTMENT INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS 9. THE CONTRACTOR SHALL PROVIDE ALL NECESSARY EQUIPMENT TO PREVENT UTILITY INTERRUPTION. NOTIFY THE BOEING COMPANY ONE WEEK IN ADVANCE OF EACH UTILITY CONNECTION. 10. PRIOR TO BIDDING, IT SHALL BE THE CONTRACTORS RESPONSIBILITY TO MAKE ALL NECESSARY SITE INSPECTIONS AND DETERMINATIONS OF ITEMS AND QUANTITIES OF WORK TO ENSURE THAT ALL ITEMS OF WORK NECESSARY TO PERFORM A COMPLETE AND ACCEPTABLE JOB HAVE BEEN TAKEN INTO CONSIDERATION. 11. BOEINGS SINGLE POINT CONTACT THROUGHOUT THE PROJECT WILL BE BOEING'S CONSTRUCTION ADMINISTRATOR: GABRIEL HESS PROJECT & CONSTRUCTION MANAGEMENT PHONE: 206-316-7870 EMAIL: GABRIELHESS@BOEING.COM GENERAL NOTES 1. THE CONTRACTOR ASSUMES SOLE RESPONSIBILITY FOR WORKER SAFETY, FOR SAFETY AND COMPLIANCE WITH ALL AGENCY RULES AND REGULATIONS, AND FOR REPAIRING DAMAGE TO STRUCTURES AND IMPROVEMENTS RESULTING FROM CONSTRUCTION OPERATIONS. 2. THE CONTRACTOR SHALL HAVE THE APPROVED PLANS AND A CURRENT COPY OF CITY OF TUKWILA DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS AVAILABLE AT THE JOB SITE. ALL METHODS AND MATERIALS SHALL MEET CITY OF TUKWILA DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS, UNLESS OTHERWISE APPROVED BY THE PUBLIC WORKS DIRECTOR. 3. 4. 5. ALL WORK SHALL CONFORM TO THESE APPROVED DRAWINGS. ANY CHANGES FROM THE APPROVED PLANS REQUIRE PRE -APPROVAL FROM THE OWNER AND THE ENGINEER. ALL GOVERNMENTAL SAFETY REGULATIONS SHALL BE STRICTLY ADHERED TO, INCLUDING OSHA, WISHA, AND THE WASHINGTON DEPARTMENT OF LABOR AND INDUSTRY. CONTRACTOR SHALL MAINTAIN A CURRENT SET OF RECORD DRAWINGS ON-SITE. CONTRACTOR SHALL PROVIDE RECORD DRAWINGS TO ENGINEER PRIOR TO PROJECT FINAL APPROVAL 6. ALL SURVEYING SHALL BE DONE UNDER THE DIRECTION OF A WASHINGTON LICENSED LAND SURVEYOR. FOR PROJECTS WITHIN A FLOOD CONTROL ZONE, THE PERMITTEE SHALL PROVIDE CONVERSION CALCULATIONS TO NGVD 1929. 7. CONTRACTOR SHALL REPLACE OR RELOCATE ALL SIGNS DAMAGED OR REMOVED DUE TO CONSTRUCTION. 8. CONTRACTOR SHALL RETAIN, REPLACE, OR RESTORE EXISTING VEGETATION IN RIGHTS-OF-WAY, EASEMENTS, AND ACCESS TRACTS. 9. ALL AREAS THAT CONTAIN IMPROVEMENTS DISTURBED BY THE CONSTRUCTION PROCESS SHALL BE RESTORED TO A CONDITION EQUAL TO OR BETTER THAN WAS PRESENT PRIOR TO CONSTRUCTION. 10. THE CONTRACTOR SHALL NOTIFY THE ENGINEER IN THE EVENT OF DISCOVERY OF POOR SOILS, STANDING GROUND WATER, OR DISCREPANCIES FROM THE PLANS IN GRADES, LOCATIONS AND CONSTRUCTION OF UTILITIES, STRUCTURES, AND OTHER EXISTING CONDITIONS. 11. CONTRACTOR SHALL PROVIDE, INSTALL AND MAINTAIN A TEMPORARY CHAIN LINK PERIMETER FENCE AROUND THE DEMOLITION AREA PRIOR TO UTILITIES DISCONNECT. WHERE POSSIBLE, MAINTAIN A MINIMUM OF 20 FEET CLEAR AROUND THE BUILDING FOR FIRE PROTECTION. AT ALL TIMES THE CONTRACTOR SHALL MAINTAIN SIGNS AND TEMPORARY CHAIN LINK FENCING TO ENSURE CONTINUOUS PROTECTION OF THE PUBLIC AND TO PREVENT UNAUTHORIZED ENTRY TO THE CONSTRUCTION AREA. AT A MINIMUM FENCING SHALL BE 6.0 FEET HIGH. DATE SYM REVISION BY APPROVED GENERAL NOTES (Continued) 12. CONTRACTOR SHALL OBTAIN A BOEING FIRE DEPARTMENT PERMIT BEFORE STARTING ANY FIRE, WELDING, FLAME OR SPARK PRODUCING OPERATIONS. OBTAIN NEW PERMITS FOR EACH CRAFT, FOR EACH SHIFT DAILY BY CALLING 206.655.8800, GIVING LOCATION. 13. CONTRACTOR SHALL COMPLY WITH ALL SAFETY REGULATIONS AND CODES PERTAINING TO HANDLING AND STORAGE OF FUEL. 14. CONTRACTOR SHALL COORDINATE SHUT-OFF OF FIRE MAINS WITH CONSTRUCTION MANAGER. CONTRACTOR SHALL SCHEDULE WORK TO MINIMIZE DOWN TIME. CONTRACTOR SHALL NOTIFY CONSTRUCTION MANAGER AT LEAST 1 WEEK IN ADVANCE OF SHUT OFF. CONTRACTOR SHALL OBTAIN WRITTEN APPROVAL OF SHUT OFF. 15. TOBACCO PRODUCTS AND/OR SMOKING IS PROHIBITED WITHIN BUILDINGS OR ON BOEING PROPERTY. 16. CONTRACTOR SHALL NOT PERMIT CONCENTRATIONS OF DUST AND FUMES TO REACH LEVELS THAT ARE HAZARDOUS TO HEALTH OR A POTENTIAL FIRE OR EXPLOSION HAZARD. 17. INTERRUPTION TO UTILITY SERVICES SUCH AS (BUT NOT LIMITED TO) WATER, SANITARY SEWER, ELECTRICITY, COMMUNICATIONS, HEATING AND AIR CONDITIONING SYSTEMS, SHALL OCCUR AT SUCH TIMES AS PERMITTED BY BOEING SO THAT INTERRUPTION OF SUCH SERVICES WILL NOT INTERFERE WITH BOEING OPERATIONS, NOR THAT OF SURROUNDING PROPERTIES. CONTRACTOR SHALL NOT PROCEED WITH WORK AFFECTING UTILITIES WITHOUT THE PRIOR WRITTEN APPROVAL, INCLUDING SCHEDULE APPROVAL BY BOEING CONSTRUCTION MANAGER. GENERALLY, SUCH OUTAGES OR DISRUPTION OF UTILITY SERVICE SHALL OCCUR AND/OR BE CAUSED BY THE CONTRACTOR ONLY ON SATURDAYS, SUNDAYS OR OTHER BOEING NON -WORK DAYS OR OTHER PERIODS AS APPROVED BY THE BOEING CONSTRUCTION MANAGER AT NO ADDITIONAL COST TO THE BOEING CO. 18. WATER AND ELECTRICAL UTILITIES FOR CONSTRUCTION ACTIVITIES SHALL BE PROVIDED BY BOEING. 19. CARE MUST BE TAKEN TO PREVENT THE SPREAD OF DUST AND FLYING PARTICLES. 20. ASBESTOS CONTAINING MATERIALS (ACM) HAVE BEEN IDENTIFIED AND QUANTIFIED BY BOEING. REMOVAL DRAWINGS FOR THE ASBESTOS CONTAINING MATERIAL WILL BE PRODUCED BY BOEING. ALL ASBESTOS -CONTAINING MATERIAL FROM THE 09-150 BUILDING SHALL BE REMOVED AND DISPOSED BY THE CONTRACTOR IN ACCORDANCE WITH NVL LABORATORIES HAZMAT REPORT. ASBESTOS ABATEMENT, MUST BE APPROVED BY PUGET SOUND CLEAN AIR AGENCY PRIOR TO DEMOLITION, CONTRACTOR IS RESPONSIBLE FOR OBTAINING ALL PERMITS FROM THIS AGENCY. 21. CONTRACTOR TO COORDINATE WITH BOEING TO IDENTIFY AND DEFINE ALL HAZARDOUS MATERIALS. ALL HAZARDOUS MATERIALS SHALL BE REMOVED BY THE CONTRACTOR TO BOEING PROVIDED CONTAINERS. BOEING TO DISPOSE OF ALL HAZARDOUS MATERIALS. 22. CONTRACTOR SHALL RECYCLE ALL MATERIALS THAT ARE ECONOMICALLY FEASIBLE. 23. CONTRACTOR SHALL ASSURE THAT ALL NECESSARY PERMITS HAVE BEEN OBTAINED PRIOR TO COMMENCING WORK, INCLUDING DEMOLITION AND GRADING (BY BOEING). CONTRACTOR SHALL COORDINATE PERMITTING WITH BOEING CONSTRUCTION MANAGER AND PROVIDE COPIES OF ALL PERMITS. 24. ALL UTILITIES AND SERVICES INCLUDING BUT NOT LIMITED TO GAS, WATER, HOT WATER, CHILLED WATER, FIRE MAINS, ELECTRIC, SANITARY AND STORM SEWER, TELEPHONE, CABLE, FIBER OPTIC CABLE, ETC. WITHIN THE LIMITS OF DISTURBANCE SHALL BE DEFINED AND VERTICALLY AND HORIZONTALLY LOCATED. PROVIDE BOEING ANY DRAWINGS DEPICTING UTILITIES ON PARCEL THAT WERE FIELD LOCATED SUCH AS POTHOLE DRAWINGS. 25. THE CONTRACTOR SHALL USE AND COMPLY WITH THE REQUIREMENTS OF THE APPLICABLE UTILITY NOTIFICATION SYSTEM TO LOCATE ALL THE UNDERGROUND UTILITIES. 26. IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO REVIEW ALL OF THE DRAWINGS AND SPECIFICATIONS ASSOCIATED WITH THE PROJECT WORK SCOPE PRIOR TO THE INITIATION OF CONSTRUCTION. SHOULD THE CONTRACTOR FIND A CONFLICT WITH THE DOCUMENTS RELATIVE TO THE SPECIFICATIONS OR THE RELATIVE CODES, IT IS THE CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE BOEING CONSTRUCTION MANAGER AND COFFMAN ENGINEERS IN WRITING PRIOR TO THE START OF CONSTRUCTION. 27. THE CONTRACTOR IS RESPONSIBLE TO PROTECT AND MAINTAIN ALL ACTIVE UTILITY SYSTEMS OR SERVICES THAT ARE NOT BEING REMOVED AND/OR RELOCATED DURING SITE ACTIVITY. THE CONTRACTOR IS RESPONSIBLE FOR REPAIRS OF DAMAGE AND/OR REPLACEMENT AS A RESULT OF CONSTRUCTION ACTIVITY TO ANY EXISTING FEATURES THAT ARE TO REMAIN AND/OR UTILITY SYSTEMS AT NO COST TO THE OWNER. 28. THE CONTRACTOR SHALL FOLLOW ALL RECOMMENDATIONS FOR PILE REMOVAL, SHORING AND BACKFILL INCLUDED IN THE FOLLOWING GEOTECHNICAL REPORT: "FINAL GEOTECHNICAL RECOMMENDATIONS SUBMITTAL FOR BOEING 9-150 DEMOLITION OF BOEING BUILDING 9-150 PROJECT", DATED JUNE 2ND, 2017, AND PREPARED BY GOLDER ASSOCIATES. DEMOLITION NOTES 1. REMOVE ALL DELETERIOUS MATERIAL FOUND ON-SITE INCLUDING VEGETATION, SCRAP WOOD, TRASH, ETC. AND DISPOSE OF AT AN APPROVED OFF-SITE LOCATION. 2. THE CONTRACTOR SHALL NOT DAMAGE OR CAUSE TO BE DAMAGED ANY STRUCTURES, PARKING LOTS, DRIVES, STREETS, SIDEWALKS, UTILITIES, LAWNS, AREA OUTSIDE OF DEMOLITION LIMITS AS SHOWN ON THE PLANS OR ANY OTHER PROPERTY ADJACENT TO PARCELS RELEASED FOR DEMOLITION WHETHER OR NOT THE PROPERTY IS SCHEDULED FOR FUTURE DEMOLITION. CONTRACTOR SHALL CONFIRM THE DEMOLITION AND WORK LIMITS WITH THE BOEING CONSTRUCTION MANAGER. DAMAGE TO ANY PROPERTY INCLUDING, BUT NOT LIMITED TO, BUILDINGS, UTILITIES, VEHICLES, FENCING, OR LANDSCAPING AS A RESULT OF CONTRACTORS ACTIVITIES WILL BE REPAIRED OR REPLACED AT THE CONTRACTORS EXPENSE. 3. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE PROTECTION OF ALL EXISTING SURVEY MONUMENTS AND OTHER SURVEY MARKERS DURING CONSTRUCTION. ALL SUCH MONUMENTS OR MARKERS DESTROYED DURING CONSTRUCTION SHALL BE REPLACED AT THE CONTRACTOR'S EXPENSE TO ORIGINAL LOCATION AND ELEVATION. 4. THE CONTRACTOR IS FINANCIALLY RESPONSIBLE FOR THE MAINTENANCE OR REPAIR OF OFF-SITE AND ON-SITE PAVED SURFACES WHERE DAMAGE HAS BEEN SUSTAINED BECAUSE OF CONSTRUCTION TRAFFIC. 5. ALL CONCRETE, PAVEMENT, CURBS, SIDEWALKS, AND RAMPS INDICATED TO BE REMOVED OR REPLACED SHALL BE REMOVED TO THE NEAREST JOINT AS IDENTIFIED DURING CONSTRUCTION. WHERE THIS IS NOT POSSIBLE DUE TO CONFLICTS OR ADJACENT DAMAGED CONCRETE / ASPHALT, THE CONTRACTOR SHALL MAKE A FULL PAVEMENT DEPTH SAWCUT AT THE PROPOSED JOINT IN SOUND PAVEMENT. PROPOSED CONCRETE / ASPHALT SHALL EXTEND TO THE SAWCUT EDGE AND BE APPROPRIATELY JOINED / SEALED. 6. TO THE MAXIMUM EXTENT POSSIBLE, THE CONTRACTOR SHALL SALVAGE AND REUSE ALL CATCH BASIN FRAMES, GRATES, COVERS, MANHOLE LIDS, AND ANY OTHER EXISTING METAL WORKS IN PAVEMENTS DESIGNATED FOR REMOVAL / REPLACEMENT. DATE DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.02.17 A PERMIT REVISIONS W4640620 CEI MS 06.29.17 Q� BOE/iVG' - GRADING AND EROSION CONTROL NOTES 1. ON-SITE EROSION MEASURES SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR. ANY PROBLEMS OCCURRING BEFORE FINAL ACCEPTANCE OF THE STORM SYSTEM BY THE OWNER SHALL BE CORRECTED BY THE CONTRACTOR. 2. IN CASE EROSION OR SEDIMENTATION OCCURS ON ADJACENT PROPERTY, ALL CONSTRUCTION WORK WITHIN THE DEVELOPMENT THAT WILL AGGRAVATE THE SITUATION MUST CEASE AND THE CONTRACTOR SHALL IMMEDIATELY COMMENCE RESTORATION OR MITIGATION METHODS. RESTORATION ACTIVITY WILL CONTINUE UNTIL SUCH TIME AS THE PROBLEM IS RECTIFIED. 3. SHOULD THE TEMPORARY EROSION AND SEDIMENTATION CONTROL MEASURES AS SHOWN ON THESE DRAWINGS NOT PROVE ADEQUATE TO CONTROL EROSION AND SEDIMENTATION, THE CONTRACTOR SHALL INSTALL HAY BALES, LOOSE STRAW, SILT FENCE, OR ADDITIONAL FACILITIES AS NECESSARY TO PROTECT ADJACENT PROPERTIES, SENSITIVE AREAS, NATURAL WATER COURSES AND/OR STORM DRAINAGE SYSTEMS. 4. IN ANY AREA WHICH HAS BEEN STRIPPED OF VEGETATION OR EXPERIENCED LAND DISTURBING ACTIVITIES AND WHERE NO FURTHER WORK IS ANTICIPATED FOR A PERIOD EXCEEDING 5 DAYS, ALL DISTURBED AREAS MUST BE IMMEDIATELY STABILIZED WITH MULCHING, GRASS, PLANTING OR OTHER APPROVED EROSION CONTROL TREATMENT APPLICABLE TO THE TIME OF YEAR IN QUESTION. GRASS SEEDING ALONE WILL BE ACCEPTABLE ONLY DURING THE MONTHS OF APRIL THROUGH SEPTEMBER INCLUSIVE. SEEDING MAY PROCEED, HOWEVER, WHENEVER IT IS IN THE INTEREST OF THE CONTRACTOR, BUT MUST BE AUGMENTED WITH MULCHING. 5. THE CONTRACTOR'S LICENSED SURVEYOR WILL BE RESPONSIBLE FOR FIELD LOCATING THE CLEARING LIMITS AND ESTABLISHING THOSE BOUNDARIES WITH BRIGHT COLORED FLAGGING, PAINT, FENCING, OR OTHER VISIBLE MEANS. THE CONTRACTOR SHALL CLEAR TO THE LIMITS AS ESTABLISHED ON THIS PLAN AND AS MARKED IN THE FIELD. 6. ALL NECESSARY FACILITIES SHALL BE MAINTAINED ON-SITE TO PREVENT DEBRIS, DUST AND MUD FROM ACCUMULATING ON THE PUBLIC RIGHT-OF-WAY. 7. BEFORE BEGINNING ANY CONSTRUCTION ACTIVITIES, ESTABLISH THE CLEARING LIMITS, INSTALL CONSTRUCTION ENTRANCE, AND INSTALL EROSION PREVENTION AND SEDIMENT CONTROL MEASURES. 8. BEFORE ANY GROUND DISTURBANCE OCCURS, ALL DOWNSTREAM EROSION PREVENTION AND SEDIMENT CONTROL MEASURES (ESC) MUST BE CONSTRUCTED AND IN OPERATION. INSTALL AND MAINTAIN ALL ESC MEASURES ACCORDING TO THE ESC PLAN. 9. ESC MEASURES, INCLUDING ALL PERIMETER CONTROLS, SHALL REMAIN IN PLACE UNTIL FINAL SITE CONSTRUCTION IS COMPLETED AND PERMANENT STABILIZATION IS ESTABLISHED. 10. FROM MAY 1 THROUGH SEPTEMBER 30, PROVIDE TEMPORARY AND PERMANENT COVER MEASURES TO PROTECT DISTURBED AREAS THAT WILL REMAIN UNWORKED FOR SEVEN DAYS OR MORE. 11. FROM OCTOBER 1 THROUGH APRIL 30, PROVIDE TEMPORARY AND PERMANENT COVER MEASURES TO PROTECT DISTURBED AREAS THAT WILL REMAIN UNWORKED FOR 48 HOURS OR MORE. IN ADDITION TO COVER MEASURES, THE CONTRACTOR SHALL: A. PROTECT STOCKPILES AND STEEP CUT AND FILL SLOPES IF UNWORKED FOR MORE THAN 12 HOURS. B. STOCKPILE, ON SITE, ENOUGH COVER MATERIALS TO COVER ALL DISTURBED AREAS. C. BY OCTOBER 8, SEED ALL AREAS THAT WILL REMAIN UNWORKED DURING THE WET SEASON (OCTOBER 1 THROUGH APRIL 30). MULCH ALL SEEDED AREAS. 12. DURING THE LIFE OF THE PROJECT, THE PERMITTEE SHALL MAINTAIN IN GOOD CONDITION AND PROMPTLY REPAIR, RESTORE, OR REPLACE ALL GRADE SURFACES; WALLS, DRAINS, DAMS, STRUCTURES, VEGETATION, EROSION AND SEDIMENT CONTROL MEASURES, AND T- 'R Am, CE " 1 NC TH ."RO PLAN 13. THE PERMITTEE SHALL MONITOR THE DOWNSTREAM DRAINAGE FEATURES, AND SHALL, WITH THE DIRECTOR'S APPROVAL, REMOVE ALL SEDIMENT DEPOSITION RESULTING FROM PROJECT -RELATED WORK. WORK TO BE IN ACCORDANCE WITH 2016 KING COUNTY SURFA E WAT ' DESIGN. 14. ALL WORK PERFORMED SHALL BE PER APPROVED PLANS AND SPECIFICATIONS ONLY. THE PERMITTEE IS REQUIRED TO MAINTAIN A SET OF APPROVED PLANS AND SPECIFICATIONS AND ASSOCIATED PERMITS ON THE JOB SITE. WORK SHALL BE PERFORMED IN ACCORDANCE WITH ALL FEDERAL, STATE, AND LOCAL LAWS. 15. THE PERMITTEE SHALL AT ALL TIMES PROTECT SENSITIVE AREAS, THEIR BUFFERS, AND ADJACENT PRIVATE PROPERTIES AND PUBLIC RIGHTS-OF-WAY OR EASEMENTS FROM DAMAGE DURING GRADING OPERATIONS. THE PERMITTEE SHALL RESTORE, TO THE STANDARDS IN EFFECT AT THE TIME OF THE ISSUANCE OF THE PERMIT, SENSITIVE AREAS, THEIR BUFFERS, AND PUBLIC AND PRIVATE PROPERTIES AND IMPROVEMENTS DAMAGED BY THE PERMITTEE'S OPERATIONS. 16. CATCH BASIN PROTECTION SHALL BE INSTALLED ON ALL EXISTING STRUCTURES AND ON PROPOSED STRUCTURES IMMEDIATELY UPON CATCH BASIN INSTALLATION AND SHALL REMAIN UNTIL FINAL SITE STABILIZATION. CATCH BASIN INSERTS SHALL BE STREAMGUARD SEDIMENT CATCH BASIN INSERT #3003, ULTRA -DRAIN GUARD #9217, OR APPROVED EQUAL CATCH BASIN INSERTS SHALL BE INSTALLED IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS, AND MAINTAINED TO OPERATE PROPERLY. CATCH BASIN INSERTS SHALL BE REMOVED FOLLOWING COMPLETION OF CONSTRUCTION AND STABILIZATION OF ALL CLEARED AREAS. 17. PLASTIC COVER SHEETING SHALL HAVE A MINIMUM THICKNESS OF 6 MILS AND SHALL MEET THE REQUIREMENTS OF THE STATE STANDARD SPECIFICATIONS SECTION 9-14.5(3). COVERING SHALL BE INSTALLED AND MAINTAINED TIGHTLY IN PLACE BY USING SANDBAGS OR TIRES ON ROPES WITH A MAXIMUM 10 -FOOT GRID SPACING IN ALL DIRECTIONS. ALL SEAMS SHALL BE TAPED OR WEIGHTED DOWN FULL LENGTH AND THERE SHALL BE AT LEAST A 12 -INCH OVERLAP OF ALL SEAMS. CLEAR PLASTIC COVERING SHALL BE INSTALLED IMMEDIATELY ON AREAS SEEDED BETWEEN NOVEMBER 1 AND MARCH 31 AND REMAIN UNTIL VEGETATION IS FIRMLY ESTABLISHED. WHEN THE COVERING IS USED ON UN -SEEDED SLOPES, IT SHALL BE KEPT IN PLACE UNTIL THE NEXT SEEDING PERIOD. PLASTIC COVERING SHEETS SHALL BE BURIED TWO FEET AT THE TOP OF SLOPES IN ORDER TO PREVENT SURFACE WATER FLOW BENEATH SHEETS. PROPER MAINTENANCE INCLUDES REGULAR CHECKS FOR RIPS AND DISLODGED ENDS. 18. STOCKPILES SHALL BE STABILIZED (WITH PLASTIC COVERING OR OTHER APPROVED DEVICE) AT ALL TIMES. IN ANY SEASON, SEDIMENT LEACHING FROM STOCK PILES MUS BE PREVENTED. TOPSOILS SHALL NOT BE PLACED WHILE IN A FROZEN OR MUDDY CONDITION, WHEN THE SUBGRADE IS EXCESSIVELY WET OR WHEN CONDITIONS EXIST THAT MAY OTHERWISE BE DETRIMENTAL TO PROPER GRADING OR PROPOSED SODDING SEEDING. PREVIOUSLY ESTABLISHED GRADES ON THE AREAS TO BE TOPSOILED SHALL MAINTAINED ACCORDING TO THE APPROVED PLAN. ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED F1O(L( 3 ACOFFMAN NGINEERS 1601 Fifth Avenue, Suite 900 I Seattle, WA 98101 ph 206.623.0717 I fax 206.624.3775 coffman.com LASTING creativity I resells I relationships APPROVED BY DEPT. DATE DRAWN M. BOSILKOV CHECKED A. HAZEN DATE 06.29.17 06.29.17 SUBTITLE A SEED, SODDING AND TOPSOIL NOTES LOW -GROWING SEED MIX FESTUCA ARUNDINACEA / DWARF TALL FESCUE LOLIUM PERRENE VAR. BARCLAY DWARF PERENNIAL RYE FESTUCA RUBRA / RED FESCUE AGROSTIS TENUIS COLONIAL BENTGRASS % WEIGHT 40 30 25 5 % PURITY 98 98 98 98 HYDROSEED SEED AT 6 lbs / 1,000 SQUARE FEET; CELLULOSE MULCH AT 40 lbs / 1,000 SQUARE FEET. SOD TO BE LOCAL COMMERCIAL LEND TO MATCH EXISTING LAWN MIX. % GERMINATION 90 90 90 90 TOPSOIL: 1. CONTRACTOR IS RESPONSIBLE FOR SUPPLYING ALL TOPSOIL AND FOR DETERMINING THE VOLUME OF TOPSOIL REQUIRED PER THE INFORMATION ON PLANS AND NOTED HERE -IN. CONTRACTOR IS RESPONSIBLE FOR ANY NECESSARY WEED CONTROL RESULTING FROM CONTAMINATED OFF SITE SOURCES. 2. TOPSOIL TO BE A MINIMUM DEPTH AFTER PROOF ROLLING OF A 4" OVER REDUCED DEMOLITION RUBLE, SEE CIVIL PLANS. 3. TOPSOIL TO CONSIST OF WINTER MIX AS PRODUCED AND REMIXED BY PACIFIC TOPSOILS, INC. WINTER MIX TO CONSIST OF 1/3 BY VOLUME SANDY LOAM, 1/3 BY VOLUME COMPOSTED GARDEN MULCH, AND 1/3 BY VOLUME COARSE WASHED SAND OR EQUIVALENT. POLLUTION PREVENTION NOTES 1. EQUIPMENT LUBRICATION AND FUELING OPERATIONS SHALL OCCUR AT AN OWNER APPROVED ON-SITE LOCATION UNLESS APPROVED BY BOEING CONSTRUCTION ADMINISTRATOR. 2. PREVENT OILS AND FUELS FROM ENTERING THE STORM DRAINAGE SYSTEM WITH PROPER CONTAINMENT DEVICES. 3. ACCESS TO CONSTRUCTION IS VIA ADJACENT EXISTING PAVED STREETS. SWEEP DIRT FROM PAVING DAILY OR AS NEEDED. THE INTENT IS TO PREVENT DIRT AND DEBRIS FROM VEHICLES AND EQUIPMENT FROM BEING DEPOSITED ON BOEING -OWNED STREET AND CITY STREET PAVEMENT. 4. THE CONTRACTOR SHALL PREVENT ALL MATERIAL USED OR GENERATED ON-SITE FROM ENTERING THE STORM DRAINAGE SYSTEM. THE CONTRACTOR IS RESPONSIBLE FOR PROVIDING ADEQUATE CONTAINMENT/SEPARATION ALL TIMES. ALL STORMWATER POLLUTION PREVENTION MEASURES SHALL BE COORDINATED WITH ENVIRONMENTAL ENGINEERING TO ENSURE COMPLIANCE WITH APPLICABLE STORMWATER PERMITS. 5. THE CONTRACTOR SHALL CONDUCT A DAILY STORMWATER / ENVIRONMENTAL INSPECTION OF THE CONSTRUCTION SITE. SCOPE OF THE INSPECTION WILL BE COORDINATED WITH SITE ENVIRONMENTAL ENGINEERING. 6. THE CONTRACTOR SHALL FOLLOW ALL ENVIRONMENTAL AND OTHER REQUIREMENTS AS DEFINED IN THE BOEING SERVICE PROVIDER MANUAL (AVAILABLE UPON REQUEST). CONSTRUCTION SEQUENCE COORDINATE TRAFFIC CONTROL PLAN, ENVIRONMENTAL PROCEDURES, AND UTILITY TIE-INS AND SHUTOFFS WITH OWNER AND ENGINEER PRIOR TO BEGINNING WORK. 2. PROVIDE TRAFFIC CONTROL PLAN TO BOEING. 3. POST SIGN WITH, NAME AND PHONE NUMBER OF ESC SUPERVISOR (MAY BE CONSOLIDATED WITH THE REQUIRED NOTICE OF CONSTRUCTION SIGN). 4. FLAG OR FENCE ', CLEARING LIMITS. INSTALL TRAFFIC CONTROL DEVICES. 5. INSTALL CATCH BASIN PROTECTION AND OTHER EROSION CONTROL MEASURES IDENTIFIED ON APPROVED PLAN, WHERE REQUIRED. 6. LOCATE EXISTING UNDERGROUND UTILIITIES AND FIELD VERIFY EXISTING UTILITIES AND CONNECTION POINTS. NOTIFY ENGINEER OF ANY DISCREPANCIES PRIOR TO BEGINING WORK. 7. SAWCUT CONCRETE AND ASPHALT. 8. DEMO CONCRETE AND ASPHALT AND RECYCLE, IF POSSIBLE. IF NOT POSSIBLE, EXPORT AND DISPOSE. DEMO OTHER FEATURES AS SHOWN ON APPROVED PLANS. CLEAN SURFACE OF PAVEMENT ADJACENT TO WORK AREA. INSTALL STRUCTURAL FILL, CRUSHED SURFACING, AND PAVEMENT. INSTALL PAINT MARKINGS. 9. 10. 11. 12. 13. 14. REVIEWED FOPic ODE COMPLIAN APPROVED SEP a 1 2011 City of Tukwila BUILDING DIVISION MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH BOEING AND JURISDICTIONAL STANDARDS, AND MANUFACTURER'S RECOMMENDATIONS. UPON COMPLETION OF THE PROJECT, STABILIZE ANY REMAINING DISTURBED AREAS AND REMOVE BMPS (BEST MANAGEMENT PRACTICES), IF APPROPRIATE. REMOVECONstIa&ndarNd1IsR. 7erros O ALecAeptIRanEcMAePREVENLMEACRESrROfAPPROVALrrFROMe OTT1tNSF R.INisINsGudbEjeQctSIto and ND POLLUTION omissions which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent aaproval. Final acceptance is subject to field inspection by utilities inspector. By: ISSUED FOR PERMIT=;='ublic' GENERAL NOTES RECEIVED CITY OF TUKWILA SEP 0 8 2011 PERMIT CENTER CURRENT REVISION W4640620 SYMBOL DATE • 06.29.17 ENGINEER W. McHUGH CHECKED APPROVED APPROVED 06.29.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA SHEET C2 -DEM JOB NO. W4640620 COMP NO. DWG NO. 09-YRD-C2-DEM M. BOSIKLOV: 03/30/17 SYM ENVIRONMENTAL ENGINEERING NOTES GENERAL 1. BOEING WILL BE SOLE CONTACT AND COORDINATOR WITH ANY ENVIRONMENTAL REGULATORY AGENCY. 2. CONTRACTOR WILL PERFORM ALL ENVIRONMENTAL REQUIREMENTS AS INDICATED IN THE BOEING SERVICE PROVIDER MANUAL AND CONTRACTOR ENVIRONMENTAL COMPLIANCE GUIDE. WATER QUALITY 1. CONTRACTOR SHALL PREPARE A WDOE (ECOLOGY) CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN (SWPPP) PER THE REQUIREMENTS FOR THE WDOE CONSTRUCTION STORMWATER GENERAL PERMIT. CONTRACTOR SHALL PERFORM ALL REQUIREMENTS OF THE "SWPPP" INCLUDING PLAN PREPARATION (INCLUDING REQUIRED DRAWINGS), ANY REQUIRED INSPECTIONS, ANY REQUIRED SAMPLING, AND REQUIRED PLAN UPDATES AND REVISIONS. BOEING WILL REVIEW AND APPROVE PLAN PRIOR TO PROJECT IMPLEMENTATION. CONTRACTOR SHALL ENSURE PERSONS WITH "CESCL" ACCREDITATION PERFORM ANY ACTIVITIES REQUIRING THE CESCL CERTIFICATION. AS NOTED, BOEING WILL OBTAIN THE CONSTRUCTION STORMWATER PERMIT FOR THIS PROJECT. 2. CONTRACTOR SHALL COORDINATE ANY NECESSARY DISCHARGES TO THE SANITARY SEWER WITH SITE ENVIRONMENTAL ENGINEERING. REMEDIATION ACTIVITIES BOEING WILL DETERMINE AND IMPLEMENT ANY SOIL OR GROUNDWATER REMEDIATION REQUIREMENTS. ANY SUCH ACTIVITIES ARE NOT INCLUDED IN THIS PROJECT SCOPE OF WORK. HAZARDOUS WASTE MANAGEMENT 1. CONTRACTOR SHALL REMOVE AND SEGREGATE DESIGNATED EQUIPMENT AND SECTIONS OF THE BUILDING DEEMED HAZARDOUS OR REGULATED WASTE BY BOEING. CONTRACTOR WILL BE PROVIDED DETAILED INFORMATION ON WASTE MATERIAL TO BE SEGREGATED IN SUPPORTING DOCUMENTS. IDENTIFIED HAZARDOUS AND REGULATED WASTE WILL INCLUDE BUT NOT BE LIMITED TO: • MERCURY CONTAINING FLUORESCENT LAMPS • LIGHT BALLASTS (PCB AND NON -PCB CONTAINING) • SECTIONS OF CONCRETE DEEMED HAZARDOUS AND NOT FEASIBLE FOR DECONTAMINATION (TO BE REMOVED FOLLOWING PRIMARY ABOVE -GROUND DEMOLITION) • LIQUID DRAINED FROM ANY BUILDING SYSTEMS OR EQUIPMENT (EXAMPLE: FUEL, HEAT EXCHANGE COOLANT, REFRIGERANT, OIL, ETC) 2. CONTRACTOR SHALL ACCUMULATE ALL SEGREGATED HAZARDOUS AND REGULATED WASTE IN CONTAINERS AND ROLLOFFS PROVIDED BY BOEING ENVIRONMENTAL SERVICES. OFFSITE DISPOSAL COORDINATION AND PAPERWORK WILL BE MANAGED BY BOEING. DETAILS OF CONTRACTOR REQUIREMENTS FOR THE MANAGEMENT OF HAZARDOUS AND REGULATED WASTE WILL BE PROVIDED TO THE CONTRACTOR BY BOEING IN SUPPORTING DOCUMENTS. 3. EQUIPMENT, CONCRETE, OR DEBRIS DEEMED HAZARDOUS WASTE MUST BE CUT OR OTHERWISE SIZED TO A MAXIMUM DIMENSION OF 10'X8'X8' AND MAXIMUM WEIGHT OF 10,000 LB PER PIECE. DURING SIZING AND HANDLING OF DEBRIS, CARE MUST BE TAKEN TO NOT SPREAD METAL AND ACID CONTAMINANTS. 4. CONTRACTOR SHALL REFER TO HAZARDOUS MATERIALS SURVEY REPORT BY NVL LABS, DATED MAY 23, 2017, FOR DETAILED INFORMATION REGARDING HAZARDOUS MATERIALS AIR QUALITY 1. CONTRACTOR SHALL EMPLOY REASONABLE PRECAUTIONS TO MINIMIZE EMISSIONS OF FUGITIVE DUST DURING DEMOLITION AND DURING LOADING OF DEMOLITION DEBRIS ON TO TRANSPORT VEHICLES. 2. IN THE EVENT OF HIGH WINDS, CONTRACTOR SHALL TEMPORARILY CURTAIL DUST -PRODUCING DEMOLITION ACTIVITIES SO AS TO PREVENT VISIBLE MIGRATION OF DUST OFF-SITE (REF: PSCAA REG I, SECT. 9.15, (A)(1)). SAMPLING AND INSPECTIONS REQUIRED DURING PROJECT 1. BOEING EHS WILL PROVIDE REQUIREMENTS TO BOEING CONSTRUCTION MANAGEMENT AND GENERAL CONTRACTOR. DEWATERING REQUIREMENTS 1. BASED ON VOLUMES OF ANTICIPATED GROUNDWATER VOLUMES, BOEING EHS WILL OBTAIN ANY DEWATERING PERMITS FROM WDOE OR KING COUNTY AS REQUIRED. SITE SERVICES AND A&E DESIGN CONSULTANT SHALL PROVIDE ESTIMATED VOLUMES TO BOEING EHS IN TIME FOR ORIGINAL CONSTRUCTION STORMWATER PERMIT SUBMITTAL 1. INFORMATION REGARDING FINAL STABILIZATION PLANS SHOULD BE INCLUDED IN THE ORIGINAL STORMWATER PERMIT APPLICATION. OTHERWISE A PERMIT MODIFICATION MAY BE REQUIRED. THIS TRIGGERS ANOTHER 60 DAY WAITING PERIOD TO COMPLETE THE NEW WORK ONLY, NOT ANY WORK DESCRIBED IN THE ORIGINAL PERMIT APPLICATION. WASTE REMOVAL / CONSIDERATIONS 1. ALL LAMPS, BALLASTS, BATTERIES, THERMOSTATS AND ANY OTHER ITEMS THAT MAY CONTAIN HAZARDOUS MATERIALS WILL BE IDENTIFIED BY BOEING AND MUST BE REMOVED PRIOR TO FINAL DEMOLITION BY THE GENERAL / DEMOLITION CONTRACTOR. 2. BOEING REMEDIATION RESERVES THE RIGHT TO CONDUCT SUBSURFACE ASSESSMENTS DURING THE REMOVAL OF THE ELEVATORS OR IF OTHER UNFORESEEN CONDITIONS ARE DISCOVERED AT SUBSURFACE LOCATIONS. THESE USUALLY HAVE MINIMAL IMPACT TO THE GENERAL / DEMOLITION CONTRACTOR. IF SUBSURFACE CONTAMINATION IS DISCOVERED (THERE IS NOTHING KNOWN AT THIS TIME) FUNDING AND PROJECT MANAGEMENT OF ANY REMEDIATION IS COVERED BY BOEING REMEDIATION. REVISION BY APPROVED DATE SYM SUBGRADE PREPARATION NOTES (LAWN AREA) 1. GRAVEL BORROW SHALL BE PLACED IN LOOSE LIFTS NOT TO EXCEED 8 -INCHES, MOISTURE CONDITIONED TO ACHIEVE OPTIMAL MOISTURE CONTENT FOR COMPACTION, AND COMPACTED TO 95% MAX. DENSITY PER ASTM D-1557. 2. GRAVEL BORROW SHALL COMPLY WITH WSDOT STANDARD SPECIFICATION 9-03.14(1), MODIFIED FROM 7.0% TO 5.0% PASSING THE U.S. NO. 200 SIEVE. 3. EXISTING FOUNDATION TO BE BROKEN UP AND GROUND AS ADVISED BY THE GEOTECH ENGINEER. FOUNDATION MATERIAL MAY BE USED AS FILL IN LAWN AREAS. SUBGRADE PREPARATION NOTES (PARKING LOT AREA) 1. ALL EXPOSED SUBGRADE SHALL BE PROOF ROLLED AND COMPACTED TO 95% MAX. DENSITY. 2. REFER TO CITY OF TUKWILA STANDARD NOTES FOR BEDDING AND BACKFILL AND TRENCH BACKFILL MATERIALS ON SHEET C4. PAINT STRIPING NOTES 1. DURING CONSTRUCTION, THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL TEMPORARY STRIPING/SIGNAGE NECESSARY TO MAINTAIN SAFE VEHICLE AND PEDESTRIAN TRAFFIC. 2. THE CONTRACTOR SHALL BE RESPONSIBLE FOR REPAINTING ALL LINES AND SYMBOLS OBSCURED BY HIS WORK TO THE SATISFACTION OF THE OWNER. PRIOR TO CONSTRUCTION, THE CONTRACTOR SHALL FIELD VERIFY THE EXISTING STRIPING/SURFACE OF EACH PAVEMENT SEGMENT TO BE RECONSTRUCTED. 3. THE CONTRACTOR SHALL LAYOUT ALL PROPOSED PAINT STRIPING FOR OWNER'S REVIEW/APPROVAL PRIOR TO FINAL STRIPING. 4. COORDINATE STRIPING WITH THE BOEING COMPANY TO MATCH EXISTING STANDARD STRIPING. 5. ALL LINEAR PATTERN PAVEMENT MARKINGS SHALL BE PAINT. ALL OTHER PAVEMENT MARKINGS (ARROWS, LETTERS, STOP BARS, CROSSWALKS) SHALL BE THERMOPLASTIC. ALL PAVEMENT MARKINGS SHALL COMPLY WITH WSDOT SPECIFICATION 9-34 AND SHALL BE APPLIED IN ACCORDANCE WITH WSDOT SPECIFICATION 8-22. 6. PAINT SHALL BE APPLIED IN TWO APPLICATIONS. THE TIME PERIOD BETWEEN APPLICATIONS SHALL BE IN ACCORDANCE WITH WSDOT SPECIFICATION SECTION 8-22.3(3). 7. PAINT AT CROSSWALKS OR PEDESTRIAN TRAFFIC AREAS SHALL HAVE SAND FOR A NON -SUP SURFACE. CONSULT PAINT MANUFACTURER FOR PARTICLE SIZE AND APPLICATION RATE. 8. LONGITUDINAL MARKING PATTERNS SHALL COMPLY WITH WSDOT STANDARD PLAN M-20.10-02. TRAFFIC ARROWS SHALL COMPLY WITH WSDOT STANDARD PLAN M-24.40-02. SYMBOL MARKINGS (ADA, SPEED BUMP) SHALL COMPLY WITH WSDOT STANDARD PLAN M-24.60-04. TRAFFIC LETTERS SHALL COMPLY WITH WSDOT STANDARD PLAN M-80.30-00. 9. CROSSWALK AND STOP BAR MARKINGS SHALL COMPLY WITH WSDOT STANDARD PLAN M-15.10-01 UNLESS OTHERWISE SPECIFIED. STORM AND SANITARY SEWER NOTES CONNECTIONS TO EXISTING STORM WATER SYSTEM SHALL NOT BE MADE UNTIL THE NECESSARY ARRANGEMENTS AND TIME SCHEDULES HAVE BEEN ARRANGED WITH THE OWNER. 2. PRIOR TO ANY BACKFILLING OF NEW PIPE, CAPPED OR PLUGGED SERVICE, IT SHALL BE INSPECTED BY A BOEING REPRESENTATIVE TO ENSURE THAT IT CONFORMS TO THE PROJECT STANDARDS AND SPECIFICATIONS. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE BOEING REPRESENTATIVE 24 HRS IN ADVANCE OF BACKFILLING ALL CONSTRUCTION. THE CONTRACTOR SHALL PROVIDE AS -BUILT INFORMATION IN THE FORM OF RED -MARKED DRAWINGS TO THE ENGINEER. 3. ALL NEW AND EXISTING PIPE AND DRAINAGE STRUCTURES SHALL BE CLEANED PRIOR TO FINAL ACCEPTANCE OF WORK. THEY SHALL BE CLEANED BY FLUSHING, RODDING, OR WHATEVER MEANS NECESSARY TO PROVIDE UNOBSTRUCTED DRAINAGE. ALL CATCH BASIN SUMPS, MANHOLES, INLET AND OUTLET STRUCTURES, AND DEBRIS RACKS SHALL F' IF : hIR ''C II 4. SEWER REMOVAL AND SEWER CAPPING PERMITS REQUIRED FROM VALLEY VIEW SEWER DISTRICT, 206-242-3236. A COPY OF VALLEY VIEW SEWER CAPPING PERMIT TO BE SUBMITTED TO PUBLIC WORKS. REVISION BY APPROVED DATE DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.02.17 A PERMIT REVISIONS W4640620 CEI MS 06.29.30 PUGET SOUND ENERGY AND SEATTLE CITY LIGHT PERMITS 1. GAS CAPPING PERMIT REQUIRED FROM PUGET SOUND ENERGY. 2. ELECTRICAL CAPPING PERMIT REQUIRED FROM SEATTLE CITY LIGHT. Q� BOE/NG' rY- ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED OF N G I N EFME R SAN 1601 Fifth Avenue, Suite 900 I Seattle, WA 98101 ph 206.623.0717 I fax 206.624.3775 coffman.com LASTING creativity I results I relationships DEPT. DATE DRAWN M. BOSILKOV DATE 06.29.17 CHECKED A. HAZEN 06.29.17 REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila BUILDING DIVISION These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector. Date: br/ oi � 3 By: 9/ao/z 49 « J� SUBTITLE ISSUED FOR PERMIT GENERAL NOTES CURRENT REVISION W4640620 SYMBOL RECEIVED CITY OF TUKWILA SEP 0 8 2417 PERMIT CENTER DATE 06.29.17 ENGINEER W. McHUGH CHECKED APPROVED APPROVED 06.29.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER. WA SHEET C3 -DEM JOB NO. W4640620 COMP NO. DWG NO. 09-YRD-C3-DEM M. BOSIKLOV: 03/30/17 CITY OF TUKWILA STANDARD NOTES: (INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS, 2010 EDITION) GENERAL 1. LOCATIONS SHOWN FOR EXISTING UTILITIES ARE APPROXIMATE. 2. AT LEAST 48 HOURS BEFORE STARTING PROJECT SITE WORK, NOTIFY THE UTILITIES INSPECTOR AT 206-433-0179. 3. REQUEST A PUBLIC WORKS UTILITY INSPECTION AT LEAST 24 HOURS IN ADVANCE BY CALLING 206-433-0179. 4. THE CONTRACTOR ASSUMES SOLE RESPONSIBILITY FOR WORKER SAFETY, AND DAMAGE TO STRUCTURES AND IMPROVEMENTS RESULTING FROM CONSTRUCTION OPERATIONS. 5. THE CONTRACTOR SHALL HAVE THE PERMIT(S) AND CONDITIONS, THE APPROVED PLANS, AND A CURRENT COPY OF CITY OF TUKWILA DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS AVAILABLE AT THE JOB SITE. 6. ALL WORK SHALL CONFORM TO THESE APPROVED DRAWINGS. ANY CHANGES FROM THE APPROVED PLANS REQUIRE PRE -APPROVAL FROM THE OWNER, THE ENGINEER, AND THE CITY OF TUKWILA. 7. ALL METHODS AND MATERIALS SHALL MEET CITY OF TUKWILA DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS, UNLESS OTHERWISE APPROVED BY THE PUBLIC WORKS DIRECTOR. 8. CONTRACTOR SHALL MAINTAIN A CURRENT SET OF RECORD DRAWINGS ON-SITE. 9. CONTRACTOR SHALL PROVIDE RECORD DRAWINGS PRIOR TO PROJECT FINAL APPROVAL. 10. PROVIDE TRAFFIC CONTROL AND STREET MAINTENANCE PLAN FOR PUBLIC WORKS APPROVAL BEFORE IMPLEMENTATION. DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS B-2. 11. ALL SURVEYING FOR PUBLIC FACILITIES SHALL BE DONE UNDER THE DIRECTION OF A WASHINGTON LICENSED LAND SURVEYOR. VERTICAL DATUM SHALL BE NAVD 1988. HORIZONTAL DATUM SHALL BE WASHINGTON STATE (GRID) COORDINATES, NORTH ZONE, USING NAD 83/91 SURVEY CONTROL AND TIED TO ANY TWO CITY OF TUKWILA HORIZONTAL CONTROL MONUMENTS. FOR PROJECTS WITHIN A FLOOD CONTROL ZONE, THE PERMITTEE SHALL PROVIDE CONVERSION CALCULATIONS TO NGVD 1929. 12. REPLACE OR RELOCATE ALL SIGNS DAMAGED OR REMOVED DUE TO CONSTRUCTION. 13. RETAIN, REPLACE OR RESTORE EXISTING VEGETATION IN RIGHTS-OF-WAY, EASEMENTS, AND ACCESS TRACTS. CONSTRUCTION 1. ALL WORK PERFORMED SHALL BE PER APPROVED PLANS AND SPECIFICATIONS ONLY. THE PERMITTEE IS REQUIRED TO MAINTAIN A SET OF APPROVED PLANS, SPECIFICATIONS, AND ASSOCIATED PERMITS ON THE JOB SITE. WORK SHALL BE PERFORMED IN ACCORDANCE WITH ALL FEDERAL, STATE, AND LOCAL LAWS. PERMITTEE SHALL APPLY FOR A REVISION FOR ANY WORK NOT ACCORDING TO THE APPROVED PLANS. 2. PERMITTEE/CONTRACTOR SHALL ARRANGE A PRECONSTRUCTION CONFERENCE WITH THE CITY'S INSPECTOR(S) PRIOR TO BEGINNING ANY WORK. 3. WORK IN ROADWAYS A. ALL WORK IN ROADWAYS SHALL MEET TMC 11 AND THE FOLLOWING: B. PRIOR TO ANY ACTIVITY IN CITY RIGHT-OF-WAY, THE PERMITTEE SHALL PROVIDE THE CITY A TRAFFIC CONTROL PLAN FOR REVIEW AND APPROVAL. THE TRAFFIC CONTROL PLAN SHALL INCLUDE THE LOCATION, ADDRESS AND DESCRIPTION OF TRAFFIC FLOW DURING THE WORK AND SHALL MEET MUTCD REQUIREMENTS. C. ALL WORK REQUIRING LANE CLOSURES MUST BE BY PERMIT ONLY. FROM THE THIRD THURSDAY IN NOVEMBER TO THE FOLLOWING JANUARY 2ND, THE DIRECTOR DOES NOT ALLOW LANE CLOSURES IN THE TUKWILA URBAN CENTER. D. FIRE, PEDESTRIAN, AND VEHICULAR ACCESS TO BUILDINGS SHALL BE MAINTAINED AT ALL TIMES, EXCEPT WHEN PERMITTEE HAS PERMISSION FROM THE BUILDING OWNER AND THE DIRECTOR TO CLOSE AN ACCESS. E. ALL ROADWAYS SHALL BE KEPT FREE OF DIRT AND DEBRIS USING STREET SWEEPERS. USE OF WATER TRUCKS FOR CLEANING ROADWAYS REQUIRES PREAPPROVAL FROM THE DIRECTOR. F. INSTALL STEEL PLATES OVER ANY TRENCH, AT ANY TIME WORK IS STOPPED AND THE TRENCH IS LEFT OPEN. UTILITY NOTES 1. ALL TRENCH EXCAVATION OPERATIONS SHALL MEET OR EXCEED ALL APPLICABLE SHORING LAWS FOR TRENCHES OVER 4 -FEET DEEP. ALL TRENCH SAFETY SYSTEMS SHALL MEET WISHA REQUIREMENTS. 2. POWER, CABLE, FIBER OPTICS, AND TELEPHONE LINES SHALL BE IN A TRENCH WITH A 5' MINIMUM HORIZONTAL SEPARATION FROM OTHER UNDERGROUND UTILITIES. 3. ADJUST ALL MANHOLES, CATCH BASINS, AND VALVES IN PUBLIC RIGHTS-OF-WAY OR EASEMENTS AFTER ASPHALT PAVING. REVISION BY APPROVED DATE SYM GENERAL CONSTRUCTION 1. A PRECONSTRUCTION MEETING SHALL BE HELD WITH THE CITY PRIOR TO THE START OF CONSTRUCTION. 2. ALL WORKMANSHIP AND MATERIALS SHALL BE IN ACCORDANCE WITH THE CITY OF TUKWILA STANDARDS, THE CURRENT EDITION OF THE STATE OF WASHINGTON STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION, AND ANY PROJECT -SPECIFIC SPECIAL PROVISIONS OR CONDITIONS AND REQUIREMENTS. 3. TEMPORARY EROSION CONTROL MEASURES ARE REQUIRED AND SHALL COMPLY WITH THE STORMWATER CODE, CHAPTER 5 OF THESE STANDARDS AND VVSDOT/APWA SPECIFICATION 1-07.15 AS FOLLOWS: 3.1. EROSION CONTROL PLANS SHALL BE SUBMITTED TO THE CITY, APPROVED BY THE CITY, AND IMPLEMENTED BY THE CONTRACTOR PRIOR TO DISTURBING ANY SOIL ON THE SITE. SUBMITTAL AND APPROVAL OF THESE PLANS SHALL PRECEDE ANY CONSTRUCTION ACTIVITY ON THE SITE. 3.2. ALL PERMANENT STORAGE AND RETENTION/DETENTION AREAS USED AS PART OF THE TEMPORARY EROSION CONTROL AND WATER POLLUTION/FLOOD ACTIVITIES AND CONVEYANCE SYSTEMS SHALL BE CLEANED OF ALL SILTS, SAND AND OTHER MATERIALS FOLLOWING COMPLETION OF CONSTRUCTION AND THE PERMANENT FACILITIES SHALL THEN BE COMPLETED INCLUDING PERMANENT INFILTRATION AREAS. 4. HORIZONTAL AND VERTICAL CONTROLS/DATUM AS ADOPTED BY THE CITY SHALL BE USED, UNLESS APPROVED OTHERWISE. 5. THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR THE LOCATION AND PROTECTION OF ALL EXISTING UTILITIES. THE CONTRACTOR SHALL VERIFY ALL UTILITY LOCATIONS PRIOR TO CONSTRUCTION BY CALLING UNDERGROUND LOCATE AT "811" OR 1-800-424-5555 A MINIMUM OF 48 HOURS PRIOR TO ANY EXCAVATION WORK. 6. ALL NON-FERROUS PIPE AND SERVICES SHALL BE INSTALLED WITH CONTINUOUS TRACER TAPE INSTALLED 12" TO 18" UNDER THE FINAL GROUND SURFACE. THE MARKER TAPE SHALL BE 4" WIDE MINIMUM PLASTIC NON -BIODEGRADABLE, METAL CORE OR BACKING MARKED AND COLOR CODED FOR THE UTILITY TO BE MARKED AND WHICH CAN BE DETECTED BY A STANDARD METAL DETECTOR. TAPE SHALL BE TERRA TAPE "D" OR APPROVED EQUAL. IN ADDITION TO TRACER TAPE, FORCE MAINS AND CURVED MAINS SHALL HAVE A 14 GAUGE COATED COPPER WIRE, WRAPPED AROUND THE PIPE, BROUGHT UP, COATING STRIPPED, AND TIED OFF AT THE VALVE STEM OR MANHOLE RING. THE TAPE AND WIRE SHALL BE FURNISHED AND INSTALLED BY THE CONTRACTOR. 7. TEMPORARY STREET PATCHING MAY BE ALLOWED WITH THE APPROVAL OF THE CITY ENGINEER. 8. THE CONTRACTOR SHALL PROVIDE A TRAFFIC CONTROL PLAN(S) FOR REVIEW AND APPROVAL BY THE CITY ENGINEER IN ACCORDANCE WITH THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MUTCD). 9. THE CONTRACTOR SHALL HAVE A COPY OF THE APPROVED PLANS AND PERMITS AT THE CONSTRUCTION SITE AT ALL TIMES. 10. SPECIAL STRUCTURES SHALL BE INSTALLED PER PLANS AND MANUFACTURERS' RECOMMENDATIONS. 11. ALL DISTURBED AREAS SHALL RECEIVE TEMPORARY AND PERMANENT EROSION CONTROL IN THE FORM OF VEGETATION ESTABLISHMENT SUCH AS GRASS SEEDING. A MEANS SHALL BE ESTABLISHED TO PROTECT THE PERMANENT STORM DRAIN SYSTEM PRIOR TO ESTABLISHMENT OF THE PERMANENT EROSION CONTROL MEASURES. 12. CONSTRUCTION WORK HOURS SHALL BE RESTRICTED TO 7 A.M. TO 6 P.M., MONDAY THROUGH FRIDAY, UNLESS OTHERWISE APPROVED IN WRITING. 13. THE CITY PUBLIC WORKS INSPECTOR SHALL BE NOTIFIED A MINIMUM OF 24 HOURS IN ADVANCE OF THE NEED FOR AN INSPECTION. EVERY EFFORT WILL BE MADE TO ACCOMMODATE SAME-DAY INSPECTIONS IF THE CITY IS NOTIFIED BEFORE 8 AM. BEDDING AND BACKFILL 1. FOR DUCTILE IRON PIPE (DIP), BEDDING MATERIAL SHALL BE IN ACCORDANCE WITH SECTION 903.12(3) GRAVEL BACKFILL FOR PIPE ZONE BEDDING OF THE STANDARD SPECIFICATIONS. 2. FOR CONVENIENCE, CRUSHED ROCK BEDDING CONFORMING TO CRUSHED SURFACING TOP COURSEMATERIAL OF SECTION 9-03.9(3) CRUSHED SURFACING OF THE STANDARD SPECIFICATIONS MAY ALSO BE USED AS BEDDING MATERIAL FOR PIPE. 3. IN UNPAVED AREAS, THE CONTRACTOR MAY REQUEST TO USE EXCAVATED MATERIAL USED AS PIPEBEDDING WHERE IT HAS BEEN DETERMINED BY THE ENGINEER AS SUITABLE MEETING THEREQUIREMENTS OF SECTION 9-03.12(3) GRAVEL BACKFILL FOR PIPE ZONE BEDDING OF THESTANDARD SPECIFICATIONS, AND PROPER COMPACTION LEVELS CAN BE ACHIEVED. 4. FOR POLYVINYL CHLORIDE (PVC) PIPE, CORRUGATED POLYETHYLENE (CPE) PIPE, AND OTHERTHERMOPLASTIC PIPE, BEDDING MATERIAL SHALL BE IMPORTED MATERIAL CONFORMING TO CRUSHEDSURFACING TOP COURSE MATERIAL OF SECTION 9-03.9(3) CRUSHED SURFACING OF THE STANDARDSPECIFICATIONS. 5. FOR DUCTILE IRON SEWER PIPE, THE CONTRACTOR MAY REQUEST TO USE EXCAVATED MATERIAL AS PIPEBEDDING WHERE IT HAS BEEN DETERMINED BY THE ENGINEER AS SUITABLE MATERIAL MEETING THEREQUIREMENTS OF SECTION 9-03.12(3) GRAVEL BACKFILL FOR PIPE ZONE BEDDING OF THESTANDARD SPECIFICATIONS AND PROPER COMPACTION LEVELS CAN BE ACHIEVED. TRENCH BACKFILL MATERIALS 1. FOR TRANSVERSE TRENCHES (PERPENDICULAR TO THE ROADWAY CENTERLINE) IN PAVED AREAS, CRUSHED ROCK BACKFILL CONFORMING TO WSDOT SECTION 9-03.9(3) CRUSHED SURFACING OF THE STANDARD SPECIFICATIONS SHALL BE USED AS TRENCH BACKFILL FOR PIPE. 2. FOR LONGITUDINAL TRENCHES (TRENCHES PARALLEL TO THE CENTERLINE OF THE ROADWAY) IN PAVED AREAS, BACKFILL MATERIAL (4 FEET AND DEEPER BELOW FINISHED GRADE) SHALL CONFORM TO SECTION 9-03.14(1) GRAVEL BORROW OF THE STANDARD SPECIFICATIONS. THE CONTRACTOR MAY REQUEST TO USE EXCAVATED MATERIAL AS TRENCH BACKFILL AND MUST DEMONSTRATE TO THE ENGINEER THAT THE SUITABLE EXCAVATED MATERIAL CONFORMS TO WSDOT SECTION 9-03.14(1) GRAVEL BORROW OF THE STANDARD SPECIFICATIONS AND PROPER COMPACTION LEVELS CAN BE ACHIEVED. ADMIXTURES AND/OR ADDITIVES MAY NOT BE USED TO MODIFY THE MOISTURE CONTENT IN ORDER TO MEET COMPACTION SPECIFICATIONS. 3. THE TOP 4 FEET OF LONGITUDINAL TRENCHES SHALL BE BACKFILLED WITH CRUSHED ROCK CONFORMING TO WSDOT SECTION 9-03.9(3) CRUSHED SURFACING OF THE STANDARD SPECIFICATIONS. 4. IN UNPAVED AREAS, TRENCH BACKFILL MATERIAL SHALL CONFORM TO SECTION 9-03.14(1) GRAVEL BORROW OF THE STANDARD SPECIFICATIONS. THE CONTRACTOR MAY REQUEST TO USE EXCAVATED MATERIAL AS TRENCH BACKFILL WHEN IT HAS BEEN DETERMINED BY THE ENGINEER TO BE SUITABLE AND CONFORMS TO WSDOT SECTION 9-03.14(1) GRAVEL BORROW OF THE STANDARD SPECIFICATIONS AND PROPER COMPACTION LEVELS CAN BE ACHIEVED. WATER NOTES: 1. THE DEVELOPER/CONTRACTOR SHALL BE RESPONSIBLE FOR THE FIELD STAKING OF ALL WATER MAINS. THE STAKING MUST BE ACCOMPLISHED BY A WASHINGTON STATE -LICENSED ENGINEERING OR SURVEYING FIRM QUALIFIED TO PERFORM SUCH WORK, AT THE DEVELOPER/CONTRACTOR'S EXPENSE. 2. THE CITY OF TUKWILA SHALL BE NOTIFIED A MINIMUM OF THREE FULL WORKING DAYS IN ADVANCE OF COMMENCING WORK ON A WATER MAIN CONNECTION. A CITY OF TUKWILA REPRESENTATIVE SHALL BE PRESENT AT THE TIME OF THE CONNECTION. 3. THE CONTRACTOR SHALL POTHOLE TO VERIFY THE LOCATION AND DEPTH OF UTILITY CROSSINGS AND CONNECTIONS PRIOR TO BEGINNING CONSTRUCTION IN THAT AREA. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING ALL EXISTING PIPE TYPES AND SIZES FOR COUPLINGS, CONNECTIONS AND LIVE TAPS, AT THEIR EXPENSE. PARTS MUST BE ON-SITE PRIOR TO SCHEDULING CUT -INS OR CONNECTIONS. ALL CHARGES FOR CUT -INS AND LIVE TAPS ARE THE RESPONSIBILITY OF THE DEVELOPER/CONTRACTOR. 5. THE CONTRACTOR SHALL FURNISH A WATERTIGHT PLUG OF THE APPROPRIATE SIZE, WHICH SHALL BE INSTALLED IN THE END OF THE WATER PIPE ANY TIME THAT WORK IS DELAYED OR STOPPED. 6. THE MINIMUM COVER FOR THE WATER MAIN 12 INCHES IN DIAMETER OR SMALLER SHALL BE 36 INCHES TO THE TOP OF THE PIPE. THE MINIMUM COVER FOR WATER MAINS OVER 12 INCHES IN DIAMETER SHALL BE 48 INCHES TO THE TOP OF THE PIPE. THE MAXIMUM DEPTH SHALL NOT BE GREATER THAN 60 INCHES TO THE TOP OF THE PIPE. IN THE VICINITY OF UTILITY CONFLICTS, THE MINIMUM DEPTH OF COVER MAY BE REDUCED TO 30 INCHES. OTHERWISE, WATER MAINS SHALL BE LOWERED TO CLEAR. WHERE WATER MAINS CROSS BENEATH SANITARY SEWER, THE LENGTH OF THE WATER MAIN SHALL BE CENTERED AT THE POINT OF CROSSING SO THAT THE JOINTS WILL BE EQUIDISTANT AND AS FAR AS POSSIBLE FROM THE SEWER LINE. 7. A MINIMUM OF TEN (10) FEET OF HORIZONTAL CLEARANCE MUST BE MAINTAINED BETWEEN POTABLE WATER FACILITIES AND SANITARY SEWER FACILITIES UNLESS OTHERWISE ALLOWED BY THE CITY OF TUKWILA. 8. A MINIMUM OF 1 -FOOT VERTICAL SEPARATION SHALL BE MAINTAINED BETWEEN ALL UTILITIES WITH THE EXCEPTION OF SANITARY SEWER CROSSINGS, WHERE AN 18 -INCH MINIMUM VERTICAL SEPARATION IS REQUIRED. IF THE REQUIRED VERTICAL SEPARATION ABSOLUTELY CANNOT BE OBTAINED, ETHAFOAM SHALL BE INSTALLED BETWEEN THE UTILITIES. 9. WATER SERVICE PIPING SHALL BE COPPER 'TYPE K' OR SCHEDULE 40 BRASS. 10. BEDDING OF THE PIPELINES AND COMPACTION OF BACKFILL MATERIAL SHALL BE REQUIRED IN ACCORDANCE WITH THE STANDARD SPECIFICATIONS. 11. THE CONTRACTOR SHALL PROVIDE AND INSTALL PROTECTIVE DEVICES IN ORDER TO PREVENT PIPE DEGENERATION AT THOSE LOCATIONS WHERE PIPE OF DISSIMILAR METAL ARE JOINED, OR WHERE METALLIC PIPE IS BEING INSTALLED AND CATHODIC PROTECTION HAS BEEN EMPLOYED ON AN ADJACENT OR CROSSING PIPELINE. 12. PLASTIC SHEETING SHALL BE USED AS A BOND BREAKER BETWEEN CONCRETE BLOCKING AND PIPE/FITTINGS. 13. PRIOR TO BACKFILL, ALL MAINS AND APPURTENANCES SHALL BE REVIEWED AND APPROVED BY THE CITY OF TUKWILA. APPROVAL SHALL NOT RELIEVE THE DEVELOPER/CONTRACTOR FOR CORRECTION OF ANY DEFICIENCIES AND/OR FAILURES AS DETERMINED BY SUBSEQUENT TESTING AND INSPECTIONS. IT SHALL BE THE DEVELOPER/CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE CITY OF TUKWILA AT LEAST TWO FULL WORKING DAYS IN ADVANCE OF THE REQUIRED REVIEWS AND TESTS. 14. WATER SYSTEM TRENCHES SHALL BE BACKFILLED AND COMPACTED TO 95 PERCENT OF THE SOIL'S MAXIMUM DENSITY IN RIGHT-OF-WAY AND IMPROVED AREAS (ROADS, DRIVEWAYS, SIDEWALKS, ETC.) AND TO 90 PERCENT OF THE SOIL'S MAXIMUM DENSITY IN UNIMPROVED AREAS (LAWNS, LANDSCAPING, NATURAL VEGETATION, ETC.), AS DETERMINED BY THE MODIFIED PROCTOR TEST, ASTM D1557. COMPACTION TESTING IS REQUIRED FOR ALL OPEN CUTS. TESTING SHALL BE ACCOMPLISHED AT THE DEVELOPER/CONTRACTOR'S EXPENSE. 15. RECYCLED CONCRETE SHALL NOT BE ALLOWED AS TRENCH BACKFILL OR IN LIEU OF CRUSHED SURFACING TOP COURSE. 16. THE CITY OF TUKWILA SHALL BE THE SOLE OPERATOR OF EXISTING VALVES. 17. CUT -INS SHALL BE DIRECTLY SUPERVISED BY AN AUTHORIZED REPRESENTATIVE OF THE CITY OF TUKWLA. 18. EXISTING WATER FACILITIES BEING ABANDONED, AND/OR ABANDONED CROSSING PIPES SHALL BE MADE WATERTIGHT BY PLUGGING/CAPPING PRIOR TO BACKFILLING. PIPE SHALL BE PLUGGED/CAPPED AT THEIR INLETS/OUTLETS WITH PROPER FITTING MECHANICAL PLUGS/CAPS, PRIOR TO BACKFILLING. 19. WATER SETTLING OF TRENCHES SHALL NOT BE ALLOWED. REVISION APPROVED DATE DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.29.17 WATER NOTES CONTINUED: 20. TEMPORARY STREET PATCHING SHALL BE ALLOWED FOR AS APPROVED BY THE UTILITY INSPECTOR AND THE CITY OF TUKWILA. COLD MIX TEMPORARY PATCH SHALL BE PLACED AND MAINTAINED IN SUCH A MANNER AS TO PREVENT TRAFFIC HAZARDS UNTIL A PERMANENT PAVEMENT PATCH HAS BEEN PLACED. TEMPORARY PATCHING SHALL BE REMOVED AND PROPERLY DISPOSED OF WHEN PAVEMENT IS PLACED. IF THE TEMPORARY PATCHING IS NOT ADEQUATELY CONSTRUCTED AND/OR MAINTAINED, THE CITY OF TUKWILA, AFTER NOTIFICATION TO THE CONTRACTOR, HAS THE OPTION OF INSTALLING ADDITIONAL COLD MIX AT THE DEVELOPER/CONTRACTOR'S EXPENSE. 21. VALVE MARKER POSTS SHALL BE INSTALLED FOR VALVES LOCATED OUTSIDE PAVED SURFACES. 22. AN OPERATING NUT EXTENSION SHALL BE INSTALLED WHEN THE GROUND SURFACE IS MORE THAN 30 INCHES ABOVE THE VALVE OPERATING NUT. THE OPERATING NUT EXTENSION SHALL EXTEND INTO THE TOP SECTION OF THE STANDARD VALVE BOX AND SHALL CLEAR THE BOTTOM OF THE LID BY A MAXIMUM OF SIX INCHES. EXTENSION PIECES, WHEN USED, SHALL CONFORM TO MINIMUM THICKNESS REQUIREMENTS AND SHALL FIT INTO THE TOP SECTION AND OVER THE BOTTOM SECTION. THE EXTENSION SHALL BE SECURELY FASTENED TO THE VALVE ASSEMBLY USING A SET SCREW OR PIN PRIOR TO BACKFILLING. A PLASTIC FOAM RING SHALL BE INSTALLED BETWEEN THE BOTTOM BASE SECTION AND THE GATE VALVE. 23. SERVICE CONNECTIONS ON DUCTILE IRON MAINS OR FOR ANY WATER SERVICE SHALL BE INSTALLED WITH ROMAC. 24. THE CITY OF TUKWILA SHALL PROVIDE ALL TAPS ON EXISTING CITY OF TUKVVILA WATER MAINS. THE CONTRACTOR SHALL PAY FOR CITY WATER DEPARTMENT TO TAP MAINS ON TM BASES. THE CONTRACTOR TO SUPPLY ALL TAPPING SLEEVES AND OTHER PARTS RELATED TO TAPPING. 25. ALL COUPLINGS SHALL BE ROMAC 501, OR EQUIVALENT. 26. THE CONTRACTOR SHALL ONLY SHUT OFF WATER SERVICE TO EXISTING WATER CUSTOMERS BETWEEN THE HOURS OF 9 AM TO 3 PM, MONDAY THROUGH FRIDAY UNLESS ARRANGEMENTS ARE MADE WITH THE CITY OF TUKWILA TO DO OTHERWISE. WATER SHALL NOT BE CUT OFF ON WEEKENDS OR ON CITY OF TUKWILA-OBSERVED HOLIDAYS. THE CONTRACTOR SHALL PROVIDE THE CITY OF TUKWLA A MINIMUM OF FOUR WORKING DAYS NOTICE PRIOR TO REQUIRING A WATER MAIN SHUT DOWN. 27. NO WATER CONNECTIONS SHALL BE MADE UNTIL THE NEW PIPING HAS BEEN FLUSHED, DISINFECTED, AND SUCCESSFULLY PRESSURE AND BACTERIA TESTED. A CITY OF TUKVVILA REPRESENTATIVE SHALL BE PRESENT AT THE TIME OF THE CONNECTION. 28. THE CONTRACTOR SHALL OBTAIN A DOUBLE CHECK VALVE ASSEMBLY AND ASSOCIATED WATER METER FROM THE CITY OF TUKWILA FOR USE IN OBTAINING WATER TO FILL NEWLY CONSTRUCTED WATER MAINS FOR FLUSHING AND BACTERIOLOGICAL TESTING. THE DEVELOPER SHALL BE LIABLE FOR PAYMENT OF ANY DAMAGES THAT OCCUR TO THE BACKFLOW/METER ASSEMBLY WHILE IN THE CONTRACTOR'S POSSESSION. THE CONTRACTOR WILL BE ALLOWED TO CONNECT TO A FIRE HYDRANT (TO REMAIN IN FULL OPEN POSITION) WITH THIS DEVICE AS REQUIRED TO PERFORM THE NECESSARY OPERATION. 29. DISINFECTION WASTEWATER SHALL BE DISCHARGED INTO THE SANITARY SEWER SYSTEM OR NEUTRALIZED COMPLETELY (ZERO CHLORINE RESIDUAL) AND SAFELY DISCHARGED BY OTHER MEANS. AT NO TIME SHALL CHLORINATED WATER FROM A NEW MAIN BE FLUSHED INTO A FRESH WATER BODY OR ITS TRIBUTARY AREA. THIS IS TO INCLUDE LAKES, RIVERS, STREAMS, DRAINAGE WAYS, STORM DRAINAGE SYSTEMS, AND ANY AND ALL OTHER AREAS TRIBUTARY TO WHERE FISH OR OTHER NATURAL WATER LIFE CAN BE EXPECTED. THE CONTRACTOR SHALL FOLLOW EROSION AND SEDIMENT CONTROL BEST MANAGEMENT PRACTICES (BMP'S) WHEN DISCHARGING ONTO THE GROUND. 30. HYDROSTATIC AND BACTERIA TESTS ARE REQUIRED ON ALL NEW WATER MAIN INSTALLATIONS IN ACCORDANCE WITH THE STANDARD SPECIFICATIONS. PRESSURE AND BACTERIOLOGICAL TESTS SHALL BE CONDUCTED BY THE CONTRACTOR IN THE PRESENCE OF THE CITY OF TUKWILA AND/OR THEIR REPRESENTATIVE. THE CONTRACTOR SHALL PROVIDE PLUGS AND/OR TEMPORARY BLOW -OFF ASSEMBLIES FOR PURITY TESTING AND PURITY ACCEPTANCE PRIOR TO TIE-IN. PRESSURE AND BACTERIA TESTING SHALL TAKE PLACE FOLLOWING COMPLETION OF ALL UNDERGROUND UTILITY CONSTRUCTION AND THE CONSTRUCTION OF ROADWAY SUBGRADE. BACTERIOLOGICAL TEST SAMPLES SHALL BE TAKEN AND DELIVERED TO THE TESTING LAB BY THE CITY OF TUKWILA. 31. AFTER INSTALLATION, BACKFLOW DEVICES SHALL BE TESTED AND CERTIFIED BY A WASHINGTON STATE CERTIFIED BACKFLOW ASSEMBLY TESTER. TEST RESULTS SHALL BE PROVIDED TO CITY OF TUKWILA. 32. FINAL ACCEPTANCE OF WATER FACILITY INSTALLATION WILL NOT BE MADE UNTIL TESTS AND INSPECTIONS ARE COMPLETE AND PROVEN SATISFACTORY. PIPE CLASS I PROTECTION I COVER A. DUCTILE IRON PIPE SHALL BE ENCASED IN A STEEL OR DUCTILE IRON CASING WHEN CROSSING UNDER IMPROVEMENTS WHERE THE ABILITY TO REMOVE AND REPLACE PIPE WITHOUT DISTURBANCE TO THE IMPROVEMENT IS NEEDED. CASINGS ARE REQUIRED WHEN: - CROSSING UNDER ROCKERIES OVER 4' HIGH. - CROSSING UNDER RETAINING WALL FOOTINGS OVER 4' WIDE. - CROSSING UNDER REINFORCED EARTH RETAINING WALLS (BOTH WALL AND REINFORCING MATERIAL). CASINGS SHALL EXTEND A MINIMUM OF 5' PAST EACH EDGE OF THE IMPROVEMENT, OR A DISTANCE EQUAL TO THE DEPTH OF PIPE WHICHEVER IS GREATER. THE CARRIER PIPE SHALL BE SUPPORTED BY CASING SPACERS, WHERE CASING LENGTH EXCEEDS 10'. MINIMUM CLEARANCE BETWEEN BOTTOM OF ROCKERY AND TOP OF PIPE OR CASING SHALL BE 2'. THE TRENCH SHALL BE BACKFILLED WITH CRUSHED ROCK. B. BUILDING SETBACK REQUIREMENTS: 5' MINIMUM FROM COVERED PARKING TO WATERMAIN. 10' MINIMUM FROM BUILDING (AND RETAINING WALLS) TO WATERMAIN. 20' MINIMUM EASEMENT SHALL BE PROVIDED BETWEEN BUILDINGS. WHEN PASSING BETWEEN BUILDINGS WHICH ARE 25' APART OR LESS, DUCTILE IRON PIPESHALL BE INSTALLED WITH 2' OF PIPE COVER (5' BEYOND THE LIMITS OF EACH BUILDING). C. ALL DUCTILE IRON PIPE AND ADJACENT FITTINGS SHALL BE ENCASED IN 8 -MIL POLYETHYLENE PERAWVVA C105. MATERIAL SPECIFICATIONS: A. B. C. ii. i. ii. I. II. iv. v. D. F. iv. v. vi. iv, Q� BOE/NG° PIPE DUCTILE IRON PIPE: CLASS 52, AWWA C-150; WSDOT APWA STANDARD SPECIFICATIONS SECTION 9-30.1(1). PVC PIPE: AWWA C-900 ONLY, WSDOT/APWA STANDARD SPECIFICATIONS SECTION 9-30.1(5) FITTINGS DUCTILE IRON PIPE: WSDOT/APWA STANDARD SPECIFICATIONS SECTION 930.2(1); MJ FITTINGS PVC PIPE: AWWA C-900 ONLY, WSDOT/APWA STANDARD SPECIFICATIONS SECTION 9-30.2(5); MJ FITTINGS, NO GLUE HOT TAPS: STAINLESS STEEL TAPPING SLEEVE, ROMAC ONLY VALVES AND APPURTENANCES GATE VALVES: RESILIENT WEDGE, AWWA C500 BUTTERFLY VALVES: AWWA C504 BACKFLOW PREVENTERS: RESILIENT SEAT, DOH APPROVED, AWWA C605 STANDPIPES: STANDPIPES SHALL BE EQUIPPED WITH AT LEAST A 2-1/2 INCH NATIONAL STANDARD THREAD CONNECTION PORT. AN EMERGENCY PORT MAY ALSO BE INSTALLED ON ABOVE GROUND FACILITIES TO THE SAME SPECIFICATIONS. VALVE BOXES: WSDOT/APWA STANDARD SPECIFICATIONS SECTION 9-30.3(4) HYDRANTS: AWWA C502; MUELLER MODEL CENTURY 200 WITH TWO 2-1/2 INCH (NATIONAL STANDARD THREAD) SIDE PORTS AND ONE 4 -INCH (NATIONAL STANDARD THREAD) STEAMER NOZZLE WITH 4 -INCH STORTZ ADAPTER. METERS AND SERVICES METERS: SENSUS SRII, OR APPROVED EQUAL CORPORATION STOPS: MUELLER MODEL NUMBER H1502H (1" & 3/4"; H9969 (11/2" & 2"), WSDOT/APWA STANDARD SPECIFICATIONS SECTION 9-30.6(2), IPT x110 SERVICE SADDLES: WSDOT/APWA STANDARD SPECIFICATIONS SECTION 930.6(1) CURB STOPS: MUELLER H-15175, OR APPROVED EQUAL, WITH COPPER INLET AND INSIDE IP OUTLET. IPT x 110 COMPRESSION METER BOXES: PVC OR CONCRETE METER BOX 16 INCHES BY 22 INCHES BY 12 INCHES. SERVICE PIPES: WSDOT/APWA STANDARD SPECIFICATIONS 9-30.6(3); 3/4 INCH OR 1 INCH TYPE (K) COPPER, OR LARGER AS NECESSARY. MISCELLANEOUS GUARD POSTS: WSDOT/APWA STANDARD SPECIFICATIONS SECTION 9-30.5(6) MARKER POST: WSDOT/APWA STANDARD SPECIFICATIONS SECTION 9-30.3(5) THRUST BLOCKING: AWWA C600 PIPE GASKETS: AWWA C115 Al ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector. Date: ACOFFMAN N G I N E E R S 1601 Fifth Avenue, Suite 900 I Seattle, WA 98101 ph 206.623.0717 I fax 206.624.3775 coffman.com LASTING creativity I results I relationships APPROVED BY DEPT. DATE M. BOSILKOV SEWER NOTES: (51x)Ee SEW1C6 131 c) Y v[EL) 5E14)6" eisifticT") 1. THE DEVELOPER/CONTRACTOR SHALL BE RESPONSIBLE FOR THE FIELD STAKING OF ALL SEWER MAINS. THE STAKING MUST BE ACCOMPLISHED BY A WASHINGTON STATE -LICENSED ENGINEERING OR SURVEYING FIRM QUALIFIED TO PERFORM SUCH WORK, AT THE DEVELOPER/CONTRACTOR'S EXPENSE. 2. THE CITY OF TUKVVILA SHALL BE NOTIFIED A MINIMUM OF TWO FULL WORKING DAYS IN ADVANCE OF COMMENCING WORK ON A SANITARY SEWER CONNECTION. A CITY OF TUKVVILA REPRESENTATIVE SHALL BE PRESENT AT THE TIME OF THE CONNECTION. 3. THE CONTRACTOR SHALL POTHOLE TO VERIFY THE LOCATION AND DEPTH OF UTILITY CROSSINGS AND CONNECTIONS PRIOR TO BEGINNING CONSTRUCTION IN THAT AREA. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING ALL EXISTING PIPE TYPES AND SIZES FOR COUPLINGS, CONNECTIONS, AND LIVE TAPS, AT THEIR EXPENSE. PARTS MUST BE ON-SITE PRIOR TO SCHEDULING CUT -INS OR CONNECTIONS. ALL CHARGES FOR CUT -INS AND LIVE TAPS ARE THE RESPONSIBILITY OF THE DEVELOPER/CONTRACTOR. 5. THE CONTRACTOR SHALL FURNISH A WATERTIGHT PLUG OF THE APPROPRIATE SIZE, WHICH SHALL BE INSTALLED IN THE END OF THE SEWER PIPE ANY TIME THAT WORK IS DELAYED OR STOPPED. 6. A MINIMUM OF TEN (10) FEET OF HORIZONTAL CLEARANCE MUST BE MAINTAINED BETWEEN POTABLE WATER FACILITIES AND SANITARY SEWER FACILITIES UNLESS OTHERWISE ALLOWED BY THE CITY OF TUKWILA. 7. A MINIMUM OF 1 -FOOT VERTICAL SEPARATION SHALL BE MAINTAINED BETWEEN ALL UTILITIES WITH THE EXCEPTION OF WATER CROSSINGS, WHERE AN 18 -INCH MINIMUM VERTICAL SEPARATION IS REQUIRED. IF THE REQUIRED VERTICAL SEPARATION ABSOLUTELY CANNOT BE OBTAINED, ETHAFOAM SHALL BE INSTALLED BETWEEN THE UTILITIES. 8. THE CONTRACTOR SHALL STORE AND HANDLE PIPE AND FITTINGS PER THE MANUFACTURER'S RECOMMENDATIONS AND SHALL MEETING THE CITY OF TUKVVILA'S REQUIREMENTS. STORED PVC AND HDPE PIPE AND FITTINGS SHALL BE KEPT COOL, OUT OF DIRECT SUNLIGHT, AND COVERED WITH AN OPAQUE MATERIAL. IMPACT DAMAGE TO AND DRAGGING OF THE PIPE AND FITTINGS SHALL BE PROHIBITED. PIPES AND/OR FITTINGS NOT CONFIRMING TO THESE REQUIREMENTS OR DAMAGED IN TRANSIT SHALL BE REJECTED BY THE CITY OF TUKWILA. 9. ALL PVC/HDPE SIDE SEWER PIPING SHALL BE INSTALLED WITH CONTINUOUS TRACER TAPE INSTALLED 12" TO 18" UNDER THE PROPOSED FINISHED SUBGRADE. 10. DUCTILE IRON PIPE SHALL BE CLASS 52, UNLESS OTHERWISE SPECIFIED, AND SHALL CONFORM TO THE LATEST REVISIONS OF THE ASA A21.51 AND AWWA C151 SPECIFICATIONS. DUCTILE IRON PIPE FOR ALL SANITARY SEWER APPLICATIONS SHALL BE PROVIDED WITH AN INTERIOR COATING/LINING OF POLYETHYLENE MEETING THE REQUIREMENTS OF ASTM D1248 OR PROTECTO 401 CERAMIC EPDXY, 40 MIL MINIMUM THICKNESS. A BITUMINOUS COATING SHALL BE APPLIED TO THE PIPE'S EXTERIOR. 11. DUCTILE IRON FITTINGS SHALL MEET CURRENT APPLICATION ASA A21.10 (AWWA C110) AND ASA A21.11 (AWWA C111) SPECIFICATIONS. DUCTILE IRON FITTINGS FOR ALL SANITARY SEWER APPLICATIONS SHALL BE PROVIDED WITH AN INTERIOR COATING/LINING OF POLYETHYLENE MEETING THE REQUIREMENTS OF ASTM D1248 OR PROTECTO 401 CERAMIC EPDXY, 40 MIL MINIMUM THICKNESS. A BITUMINOUS COATING SHALL BE APPLIED TO THE FITTING'S EXTERIOR. 12. SEWER SERVICE STUB MARKERS SHALL BE PLASTIC, WHITE IN COLOR, NON -BIODEGRADABLE, METAL CORE OR BACKING MARKED SEWER THAT CAN BE DETECTED BY A STANDARD METAL DETECTOR. 13. BEDDING OF THE PIPELINES AND COMPACTION OF BACKFILL MATERIAL SHALL BE REQUIRED IN ACCORDANCE WITH THE BEDDING NOTES AND SPECIFICATIONS. 14. THE CONTRACTOR SHALL PROVIDE AND INSTALL PROTECTIVE DEVICES IN ORDER TO PREVENT PIPE DEGENERATION AT THOSE LOCATIONS WHERE PIPE OF DISSIMILAR METAL ARE JOINED, OR WHERE METALLIC PIPE IS BEING INSTALLED AND CATHODIC PROTECTION HAS BEEN EMPLOYED ON AN ADJACENT OR CROSSING PIPELINE. 15. PRIOR TO BACKFILL, ALL MAINS AND APPURTENANCES SHALL BE REVIEWED AND APPROVED BY THE CITY OF TUKWILA. APPROVAL SHALL NOT RELIEVE THE DEVELOPER/CONTRACTOR FOR CORRECTION OF ANY DEFICIENCIES AND/OR FAILURES AS DETERMINED BY SUBSEQUENT TESTING AND INSPECTIONS. IT SHALL BE THE DEVELOPER/CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE CITY OF TUKVVILA AT LEAST TWO FULL WORKING DAYS IN ADVANCE OF THE REQUIRED REVIEWS AND TESTS. 16. SEWER SYSTEM TRENCHES SHALL BE BACKFILLED AND COMPACTED TO 95 PERCENT OF THE SOIL'S MAXIMUM DENSITY IN RIGHT-OF-WAY AND IMPROVED AREAS (ROADS, DRIVEWAYS, SIDEWALKS, ETC.) AND COMPACTED TO 90 PERCENT OF THE SOIL'S MAXIMUM DENSITY IN UNIMPROVED AREAS (LAWNS, LANDSCAPING, NATURAL VEGETATION, ETC.), AS DETERMINED BY THE MODIFIED PROCTOR TEST, ASTM D1557. COMPACTION TESTING IS REQUIRED FOR ALL OPEN CUTS. TEST DEPTH AND FREQUENCY SHALL BE DETERMINED BY THE CITY OF TUKWILA. TESTING SHALL BE ACCOMPLISHED AT THE DEVELOPER/CONTRACTOR'S EXPENSE. 17. RECYCLED CONCRETE SHALL NOT BE ALLOWED AS TRENCH BACKFILL, OR IN LIEU OF CRUSHED SURFACING TOP COURSE. 18. EXISTING SEWER FACILITIES BEING ABANDONED AND/OR ABANDONED CROSSING PIPES, SHALL BE MADE WATERTIGHT BY PLUGGING/CAPPING PRIOR TO BACKFILLING AT THEIR INLETS/OUTLETS. THE PLUGS/CAPS SHALL BE PROPERLY FITTED MECHANICAL FITTINGS OR COMMERCIAL CONCRETE. COMMERCIAL CONCRETE PLUGS SHALL EXTEND INTO THE PIPE A MINIMUM OF TWO PIPE DIAMETERS. 19. WATER SETTLING OF TRENCHES SHALL NOT BE ALLOWED. 20. TEMPORARY STREET PATCHING SHALL BE ALLOWED FOR AS APPROVED BY THE UTILITY INSPECTOR AND THE CITY OF TUKWILA. COLD MIX TEMPORARY PATCH SHALL BE PLACED AND MAINTAINED IN SUCH A MANNER AS TO PREVENT TRAFFIC HAZARDS UNTIL A PERMANENT PAVEMENT PATCH HAS BEEN PLACED. TEMPORARY PATCHING SHALL BE REMOVED AND PROPERLY DISPOSED OF WHEN PAVEMENT ISPLACED 21. IF THE TEMPORARY PATCHING IS NOT ADEQUATELY CONSTRUCTED AND/OR MAINTAINED, THE CITY OF TUKWILA, AFTER NOTIFICATION TO THE CONTRACTOR, HAS THE OPTION OF INSTALLING ADDITIONAL COLD MIX AT THE DEVELOPER/CONTRACTOR'S EXPENSE. 22. EXISTING PAVEMENT AND SIDEWALK SHALL BE IN "SAWCUT" CONDITION PRIOR TO PATCHING. REMOVAL AREA SHALL BE MINIMUM NECESSARY TO INSTALL THE FACILITIES. SAWCUTTING TAILINGS AND WASTEWATER SHALL BE CONTAINED, REMOVED, AND PROPERLY DISPOSED OF BY THE CONTRACTOR. 23. NO FREE-FLOWING CONNECTION SHALL BE MADE BETWEEN THE NEW MAIN AND THE EXISTING SYSTEM UNTIL THE NEW PIPING HAS BEEN FLUSHED AND SUCCESSFULLY PRESSURE TESTED. FLOW THROUGH THE DOWNSTREAM (CONNECTING) MANHOLE OF THE NEW SYSTEM SHALL BE PLUGGED BY THE DEVELOPER IN ORDER TO CATCH CONSTRUCTION DEBRIS PRIOR TO THEIR ENTERING THE EXISTING SANITARY SEWER SYSTEM. 24. ALL SIDE SEWER STUBS AND SEWER MAINS SHALL BE HIGH -VELOCITY CLEANED, VIDEOED (TV'ED) AND PRESSURE TESTED FOLLOWING THE INSTALLATION OF ALL OTHER UNDERGROUND UTILITIES AND THE CONSTRUCTION OF ROADWAY SUBGRADE, BUT PRIOR TO PAVING. TESTING SHALL TAKE PLACE IN THE PRESENCE OF THE CITY OF TUKVVILA. THE CONTRACTOR SHALL PROVIDE ALL EQUIPMENT NECESSARY FOR TESTING. RE-VIDEOING FOLLOWING THE DEVELOPER'S CORRECTIVE ACTION SHALL BE AT THE DEVELOPER'S EXPENSE. 25. HYDRANT FLUSHING OF LINES IS NOT AN ACCEPTABLE CLEANING METHOD. THE CONTRACTOR SHALL ENSURE THAT FLUSHING DEBRIS ARE CAPTURED PRIOR TO ENTERING THE CITY OF TUKWILA'S EXISTING SANITARY SEWER SYSTEM. THE ENCATCHMENT METHOD SHALL MEET THE APPROVAL OF THE CITY OF TUKWILA. A CITY OF TUKWILA REPRESENTATIVE MUST BE PRESENT WHEN FLUSHING OCCURS. 26. FINAL ACCEPTANCE OF SEWER INSTALLATION WILL NOT BE MADE UNTIL TESTS AND INSPECTIONS ARE COMPLETE AND PROVEN SATISFACTORY. 4" TO 15" DIAMETER PVC PIPE ALL PVC PIPE AND FITTINGS SHALL BE INTEGRAL WALL BELL AND SPIGOT, RUBBER GASKET JOINT, UNPLASTICIZED POLYVINYL CHLORIDE (PVC) PIPE. ALL PVC PIPE SHALL HAVE A MINIMUM "PIPE STIFFNESS" OF 46 PSI AT 5 PERCENT DEFLECTION AT 73 DEGREES F WHEN TESTED IN ACCORDANCE WITH ASTM DESIGNATION D-2412, EXTERNAL LOADING PROPERTIES OF PLASTIC PIPE; AND A MINIMUM IMPACT STRENGTH BASED ON ASTM D3034 AT 73 DEGREES F USING A 20 POUND TUP A. ALL PVC SEWER PIPE AND FITTINGS MANUFACTURE AND INSTALLATION SHALL MEET OR EXCEED THE ASTM RECOMMENDED SPECIFICATIONS D-3034, SDR 35, UNLESS OTHERWISE SPECIFIED, AND ALL INSTALLATIONSHALL BE IN STRICT COMPLIANCE WITH THE MANUFACTURER'S DIRECTIONS. ALL PIPE SHALL BE CLEARLY MARKEDWITH THE DATE OF MANUFACTURE. ALL PIPE SHALL BE PROVIDED WITH A REFERENCE MARK FOR PROPER SPIGOTINSERTION. JOINT GASKETS SHALL BE FABRICATED FROM A COMPOUND OF WHICH THE BASIC POLYMER SHALL BEA SYNTHETIC RUBBER CONSISTING OF STYRENE, BUTADIENE, POLYISOPRENE OR ANY COMBINATION THEREOF ANDSHALL MEET THE REQUIREMENTS OF ASTM D-3212. CLEARANCESIOTHER UTILITIES IF THE MINIMUM VERTICAL DISTANCE BETWEEN UTILITY PIPES IS LESS THAN 6 -INCHES AND'SUCH INSTALLATION IS APPROVED BY THE CITY, A PAD SHALL BE PLACED BETWEEN THE PIPES. THE PAD SHALL BE O.D. X O.D. X 2.5 INCHES THICK MINIMUM OR AS REQUIRED TO PROTECT THE PIPES. ABOVE O.D. IS EQUAL TO THE OUTSIDE DIAMETER OF THE LARGER PIPE. THE PAD SHALL BE A POLYETHYLENE FOAM PLANK (DOW PLASTICS ETHAFOAM TM 220), OR APPROVED EQUAL. ADDITIONAL MEASURES MAY BE NECESSARY TO ENSURE SYSTEM INTEGRITY AND MAY BE REQUIRED AS EVALUATED BY THE CITY ON A CASE BY CASE BASIS ISSUED FOR PERMIT A SUBTITLE 06.29.17 CHECKED A. HAZEN ENGINEER W. McHUGH CHECKED APPROVED APPROVED 06.29.17 06.29.17 GENERAL NOTES REVIEWED FOR CODE COMPLIANCE APPROVED City of Tukwila BUILDING DIVISION CURRENT REVISION W4640620 SYMBOL RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER DATE 06.29.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA _� C4 -DEM JOB NO. W4640620 COMP NO. DWG NO. 09-YRD-C4-DEM M. BOSIKLOV: 03/30/17 .,tt,.,tt,.,ttt. — tett. r_ tett. tett.. I••••••••fate=ti■ US POST OFFICE WAREHOUSE 7- 2 7 ( PARCEL 0423049186 WESTERN FSO FOUND 1/2" REBAR AND CAP. LS#15033, (N4232'56"W) 18.29' OF CALCULATED LOT CORNER (3/3/2017) • • • OXBOW PARKING LOT ASPH SEWER PUMP STATION NO.11 (VALLEY VIEW SEWER DISTRICT) X a TREES / / Q NLAWN N 328.6' JOGGING TRAIL TREE CANOPY UNE TRAIL LIGHT, TYP -1\- SIGN, TYP FH / / JUR,SD lot �E SHORE /,' ppPROX��p N TREES N N44`I3'19"E 93.88' a. • • • • • • / / • • • \ • \ \ • 0 0 •t' yy�'`•c..� %.jV ,� �.v 3 .2123 E ,92.67' SIGN NLAWN N POWER TRANSFORMER / PARCEL 0423049150 DESIMONE TRUST OXBOW 2601 N LAWN N J • • • • ASPH 0 0 0 0 TBM 'A' 'AXIS' MAG NAIL AND WASHER ELEV = 17.51 V///7/.17/7, I D0 43 V///i1//////I fMI 43 ////ThIJIIIHIIWJI*il/ThHlIiIf 0 0 c DC N N TREES ♦t �,t,: .'�y�ti t.iii•4 fir•' AFH FH ASPH NLAWN 7,0 FOUND PUNCH MARK IN 3-1/4" BRASS DISK, IN CASE, STAMPED 'HORTON DENNIS & ASSOC. SEATTLE WENATCHEE WA' ELEV = 17.52' (3/3/2017) N TREES N 1 1 I 1 I 'S '. LAWN w?: lige• . • ..moi '--I it, / .:moi?' / a.0.„.,,M I 5 t• a' .5 / zp / ,.i,1 \\ Iii ST in 01 N toN i _4.ty7 til. 'f 12.41Y d'OY _a FH .ntt� 1 t•7<5 t• / x`1,1 •M• / REVISION BY APPROVED DATE SYM REVISION OVERALL SITE PLA SCALE: 1" = 40' BY APPROVED DATE DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.29.17 iOtto 37.38`55"E 36.37 gi_mmEwirmrm® - ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED PROPERTY LINE AK3L i These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised -drawings for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector. Date: By: f / zon ACOFFMAN N G I N E E R S 1601 Fifth Avenue, Suite 900 I Seattle, WA 98101 ph 206.623.0717 I fax 206.624.3775 coffman.com LASTING creativity I results I relationships APPROVED BY DEPT. DATE DRAWN M. BOSILKOV CHECKED A. HAZEN ENGINEER W. McHUGH CHECKED APPROVED APPROVED DATE 06.29.17 06.29.17 / / / VIEWED FOR 9ODE APPROVED CE SEP 21. 2.011 • City of Tukwila BUILDING DIVISION LEGEND 13 e IS1 aR • 99 • SET BENCHMARK FOUND MONUMENT IN CASE FOUND REBAR AND CAP AS NOTED SANITARY SEWER MANHOLE FIRE DEPARTMENT CONNECTOR FIRE HYDRANT STREET LIGHT POWER JUNCTION BOX POWER METER SIGN BOLLARD TREE TREE DRIP LINE x x x 0 cccc 'D • ••. . ////////// / DATUN CHAIN LINK FENCE LINE PROPERTY LINE ROCKERY CONCRETE BUILDINGS WOOD CHIPS PAVERS HORIZONTAL DATUM: NAD 83/91 WASHINGTON STATE PLANE ZONE: NORTH - COMBINED SCALE FACTOR 0.99999843942 KINGCO MONUMENT DESIGNATION: 3427 DB ID: 40803 - 6" DIA. CONCRETE POST W/3" BRASS DISK PUBLISHED COORDINATES - NORTHING:186864.56 (USFt)/EASTIN G: 1 280027.03 (USFt) VERTICAL DATUM: NAVD 88 CONVERSION TO NGVD 29 = -3.56' CITY OF SEATTLE MONUMENT DESIGNATION: 3685-5801 DB ID: 48204 2" BRASS CAP MARKED CITY OF SEATTLE SURVEY ELEVATION: 19.463 (USFt) TBM "A": SET AXIS MAG NAIL & WASHER ELEVATION: 19.66 (USFt) TBM "B": TOP OF PUNCH MARK IN 3-1/4" BRASS DISK, IN CASE, STAMPED 'HORTON DENNIS & ASSOC. SEATTLE WENATCHEE WA' ELEVATION: 17.52 (USFt) SITE INFORMATION SITE ADDRESS: PARCEL NUMBER: LAND AREA: ZONING: WATER DISTRICT: SEWER DISTRICT: POWER PROVIDER: 10500 W MARGINAL WAY S 0423049150 1,504,264 SF (34.53 AC) MANUFACTURING INDUSTRIAL CENTER/HEAVY (MIC/H) CITY OF TUKWILA VALLEY VIEW SEATTLE CITY LIGHT LEGAL DESCRIPTION (PER ROS REC. NO. 20170215900003) THAT PORTION OF GOVERNMENT LOTS 6 AND 7, IN SECTION 4, TOWNSHIP 23 NORTH, RANGE 4 EAST OF W.M., IN KING COUNTY, WASHINGTON, AND OF THE NORTHWEST QUARTER OF THE SOUTHEAST QUARTER OF SAID SECTION 4, LYING NORTHEASTERLY OF THE NORTHEASTERLY BOUNDARY LINE OF PROPOSED EXTENSION OF THE DUWAMISH WATERWAY, WHICH THE PARTIES HERETO AGREE SHALL BE DESCRIBED AS A LINE PARALLEL TO AND 225 FEET NORTHEASTERLY FROM, MEASURED AT RIGHT ANGLES, THE SOUTHEASTERLY PROJECTION OF THE CENTERLINE OF THE EXISTING DUWAMISH WATERWAY (COMMERCIAL WATERWAY DISTRICT NO. 1 OF KING COUNTY). SITUATE IN THE CITY OF TUKWILA, COUNTY OF KING, STATE OF WASHINGTON ISSUED FOR PERMIT SUBTITLE OVERALL SITE PLAN 40 20 RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER 0 20 40 80 1== =— 'ME SCALE: 1" = CURRENT REVISION W4640620 SYMBOL DATE 06.29.17 06.29.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA _� C5 -DEM JOB NO. W4640620 COMP NO. DWG NO. 09-YRD-05-DEM M. BOSIKLOV: 03/30/17 8'CLFNC W/3 -STRAND BARB WIRE END OF PWR PAINT MARKS 6.8' DIA. SEWER VAULT •i= PWR CAB NOTE: CONTRACTOR TO PROVIDE "FINAL STABILIZATION" AS DEFINED BY THE CONSTRUCTION STORMWATER GENERAL PERMIT. COORDINATE WITH OWNER AND DEPARTMENT OF ECOLOGY TO OBTAIN ECOLOGY ACCEPTANCE OF THE "NOTICE OF TERMINATION" (NOT) REQUEST. ALL PERMIT REQUIREMENTS MUST BE BE MAINTAINED UNTIL PERMIT TERMINATION. V BEGIN 5' WIDE D CT BANK W/TEL, GAS, H20, H TE , PWR 0 NOT ENTER' SIGN R' SIGN \ / FOUPUNCH MARK 3- /4" BSS DISK, IN CASE, S MPE RTON DENNIS & AS SEATTLE WENATCHE ELEV = 17. (3/3/2017) leg I % 400 10 de C40( )4d / // /^-1j-\ / // / / / / / .'6 / / \ / / / 'NO P LING' SIGN / / / / / P/D TB NAIL AND WASH ELEV = / TR- E WAY' SIGN / / // / WI 'E`NDS / 'STOP/DO NQ T ENTER -ONE WAY' SIGN / / / / \ • •\ • 1 Z TREE DRIP LINE I • /. , \ \ , -/ -•, ss ss ss ss ss ss , / / / \ • �\/,�� • V / •17 --- • / FH / I I FE=18.4' RIDGE=53.4' 0"w These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawin for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector._. Date: ENVI�ONN E\ TAL REVIEW \OTES ENOI 15058 - BOEING OXBOW ACTIVITY CENTER IMPAIRMENT POLLUTANT: PH THE ONLY POTENTIAL PH ALTERING MATERIAL ASSOCIATED WITH THIS PROJECT IS THE REMOVAL OF THE CONCRETE BUILDING FOUNDATIONS AND FLOOR. MITIGATION MEASURES INCLUDE THE REMOVAL OF THE CONCRETE BUILDING WILL BE CONDUCTED BY NOT ALLOWING RUN—OFF FROM THE CONCRETE REMOVAL AREA(S). THE WATER WILL BE INFILTRATED AT REMOVAL LOCATION. THE CONCRETE WILL BE DIRECT LOADED AND WILL NOT BE STOCKPILED FOR OFF—SITE DISPOSAL. SHOULD PH SAMPLE RESULTS BE OUTSIDE OF PERMIT RANGE, TREATMENT WILL BE IMPLEMENTED TO BRING PH RESULTS BACK INTO RANGE. / RIDGE= 53.4' / SIGN 0.65'x0.65' CONC PST (TYP.) CORNER 9" RETAINING ALL FLUSH WITH GND FFE=18.5' \5 STAIRS HAVE 4"x4" METAL SUPPORT BEAMS ON 1.5'x1.5' CONC BLOCKS FFE=31.4' FFE=32.6' 7-4 ISARKING' SIGN AUTO-SPKR ATTACHED TO BLDG IRRIGATION PST ORANGE CARSONITE SURVEY MARKER (NO SURVEY MONUMENT FOUND IN GENERAL AREA) FFE=18.3' 3.5'HI x 0.65'WIDE RAINBIRD WOOD BENCH 'NO r'KINGSIGN SAN "t SIGN)L DIED POSSIEXE CONNEC1QQI TO C TO E. / 2."W 16,\ PWR CABI/ \ LOST SIGNAL TO WEST 8'CLFNC W/3 -STRAND BARBWIRE CONT'S SE'LY REVISION \.� \\ \\1 \ ~/ END OF TELE PAINT MARKS \ \\ ., HI VOLTAGE POWER ENCLOSURE 9'CLFNC /3-STRAN_p_BARB flRE 4'GATE ,15 'NO PARKING ANYTIME' SIGN �\ SAN VAULT/GENERATOR ON CONC SLAB '� w•h.5 •.. ` \\ `. 3.5'x3.6' SEWER VAULT r" \ 5-.. Jyr ••W.:`�-•A, . \ POWER VAULT BY APPROVED DATE SYM TREE DRIP LINE • • • • REVISION 'NO PARKING' SIGN BY APPROVED 11 1 / / _ _ _ _ _ —_ —_ _ _ / DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.02.17 PERMIT REVISIONS CEI MS 06.29.17 1 / / // • TREE DRIP LINE -� fft ff.1 r. ® / r ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED I. ch in i&OFMAN NGINEERS 1601 Fifth Avenue, Suite 900 I Seattle, WA 98101 ph 206.623.0717 I fax 206.624.3775 coffman.com LASTING creativity results relationships APPROVED BY DEPT. DATE DRAWN M. BOSILKOV CHECKED A. HAZEN DATE 06.29.17 06.29.17 REVIEWED FOR CODE COMPLIANCE APPROVED SEP 2 1 2011 RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER SITE KEY PLAN NOT TO SCALE LEGE MATERIAL STOCKPILE AREA LIMITS OF CONSTRUCTION --Bo- SWALE WITH CHECK DAM SURFACE DRAINAGE FLOW PROTECT TREE OTES 1. SEE SHEET C2—DEM, C3—DEM, AND C4—DEM FOR RELATED PROJECT NOTES. 2. MAINTAIN ALL EROSION CONTROL MEASURES UNTIL COMPLETION OF PROJECT. 3. NOTIFY BOEING TWO (2) WEEKS IN ADVANCE OF WORK TO COORDINATE RELOCATION OF BOEING PROPERTY WITHIN PROJECT LIMITS TO AN APPROVED LOCATION. 4. PROTECT EXISTING PAVING FROM DAMAGE. CONTRACTOR MUST REPLACE ALL DAMAGED PAVING IN KIND OR BEI IER. 5. ALL UTILITIES MUST REMAIN IN SERVICE UNLESS OTHERWISE SPECIFIED ON DEMOLITION PLANS. CONSTUCTION \OTES PROVIDE CATCH BASIN PROTECTION PER DETAIL FLAG CONTRACTION LIMITS AND INSTALL SILT FENCE PER DETAIL 6/C500—DEM. UTILIZE EXISTING ASPHALT DRIVEWAY DURING INITIAL PHASE OF MOBILIZATION AND SITE PREPARATION. REMOVE AS NECESSARY FOR SITE GRADING. INSTALL STABILIZED CONSTRUCTION ENTRANCE PER DETAIL 2/C500—DEM. CONSTRUCT TEMPORARY SEDIMENT POND PER THE 2009 KING COUNTY STANDARD DETAIL D.3.5.2. 6> INSTALL STANDPIPE PER DETAIL 7/C500—DEM. INSTALL TEMPORARY POND OUTFALL PIPE (12" ADS). 8> CONNECT PIPE TO EXISTING STORM STRUCTURE. i> INSTALL TEMPORARY SWALE PER DETAIL 4/C500—DEM. 1> INSTALL CHECK DAMS AT 50' 0.C. PER DETAIL 5/C500—DEM. DP - GRADE SITE TO DIRECT SURFACE RUNOFF AWAY FROM WORK AREAS AND TOWARDS TEMPORARY SWALES AND SEDIMENT POND. PROTECT EXISTING TREE DURING CONSTRUCTION. COVER MATERIAL STOCKPILE AREA WITH PLASTIC COVERING PER DETAIL 2/C500—DEM. SWEEP PAVEMENT PERIODICALLY TO PREVENT OFF—SITE TRACKING OF DUST AND DEBRIS. PROTECT EXISTING ELECTRICAL TRANSFORMER, CONCRETE PAD, AND FENCE. 17 REMOVAL ISSUED FOR PERMIT SUBTITLE TESC PLAN 30 15 0 15 30 60 11.111 1111111 SCALE: 1" = 30' CURRENT REVISION SYMBOL A DATE 06.13.17 ENGINEER G. McHUGH CHECKED APPROVED APPROVED 06.29.17 TTfLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA SHEET C6 -DEM JOB NO. COMP NO. DWG NO. M. BOSIKLOV: 03/30/17 190 9.103 .1t3 11.120 9.101 REVIEWED FOR CODE COMPLIANCE APPROVED SEP 2 1 2011 RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER SITE KEY PLAN NOT TO SCALE LEGE MATERIAL STOCKPILE AREA LIMITS OF CONSTRUCTION --Bo- SWALE WITH CHECK DAM SURFACE DRAINAGE FLOW PROTECT TREE OTES 1. SEE SHEET C2—DEM, C3—DEM, AND C4—DEM FOR RELATED PROJECT NOTES. 2. MAINTAIN ALL EROSION CONTROL MEASURES UNTIL COMPLETION OF PROJECT. 3. NOTIFY BOEING TWO (2) WEEKS IN ADVANCE OF WORK TO COORDINATE RELOCATION OF BOEING PROPERTY WITHIN PROJECT LIMITS TO AN APPROVED LOCATION. 4. PROTECT EXISTING PAVING FROM DAMAGE. CONTRACTOR MUST REPLACE ALL DAMAGED PAVING IN KIND OR BEI IER. 5. ALL UTILITIES MUST REMAIN IN SERVICE UNLESS OTHERWISE SPECIFIED ON DEMOLITION PLANS. CONSTUCTION \OTES PROVIDE CATCH BASIN PROTECTION PER DETAIL FLAG CONTRACTION LIMITS AND INSTALL SILT FENCE PER DETAIL 6/C500—DEM. UTILIZE EXISTING ASPHALT DRIVEWAY DURING INITIAL PHASE OF MOBILIZATION AND SITE PREPARATION. REMOVE AS NECESSARY FOR SITE GRADING. INSTALL STABILIZED CONSTRUCTION ENTRANCE PER DETAIL 2/C500—DEM. CONSTRUCT TEMPORARY SEDIMENT POND PER THE 2009 KING COUNTY STANDARD DETAIL D.3.5.2. 6> INSTALL STANDPIPE PER DETAIL 7/C500—DEM. INSTALL TEMPORARY POND OUTFALL PIPE (12" ADS). 8> CONNECT PIPE TO EXISTING STORM STRUCTURE. i> INSTALL TEMPORARY SWALE PER DETAIL 4/C500—DEM. 1> INSTALL CHECK DAMS AT 50' 0.C. PER DETAIL 5/C500—DEM. DP - GRADE SITE TO DIRECT SURFACE RUNOFF AWAY FROM WORK AREAS AND TOWARDS TEMPORARY SWALES AND SEDIMENT POND. PROTECT EXISTING TREE DURING CONSTRUCTION. COVER MATERIAL STOCKPILE AREA WITH PLASTIC COVERING PER DETAIL 2/C500—DEM. SWEEP PAVEMENT PERIODICALLY TO PREVENT OFF—SITE TRACKING OF DUST AND DEBRIS. PROTECT EXISTING ELECTRICAL TRANSFORMER, CONCRETE PAD, AND FENCE. 17 REMOVAL ISSUED FOR PERMIT SUBTITLE TESC PLAN 30 15 0 15 30 60 11.111 1111111 SCALE: 1" = 30' CURRENT REVISION SYMBOL A DATE 06.13.17 ENGINEER G. McHUGH CHECKED APPROVED APPROVED 06.29.17 TTfLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA SHEET C6 -DEM JOB NO. COMP NO. DWG NO. M. BOSIKLOV: 03/30/17 ininglarESTMMMI IMMINNIMMEMBEIMMI /\ i• / / \ / \// r" v LI MEIIMMEMIE _MEEMEEM : tiz EEMEIIIIEEM IMEIMIEENIM ==MIIIIMEIMM_ EMEIMMIMMINEEM MIMEIMMEMMEME 4ffj MIME/ •111.11MIMMIMMMEL. M MEM MI. . - - -=== IMIMMEEEM MMEIIMMINIM IIMINEEMMEL EMMIMME : SYM IR� 8" DST 3.76'W 8" D 0/W SEPARATOR INLET 8"DST 4.32' OUTLET 8"DST 4.34' AREA DRAIN APPROXIMATELY 80'-0" 4"0 PVC, DRAINS TO DAYLIGHT TO REMAIN MH# 8" DST 7.71'NW 8" DST 7.79'NE 12" DST 8.11'SE REVISION BY APPROVED DATE SYM REVISION BY STORM DRAINAGE PLAN -REMOVAL SCALE: 1"=30'-0" APPROVED DATE A DEMOLITION OF BUILDING 09-150 W4640620 CEI GM 06.29.17 ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED OFI HVIAEN N G N E R S 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity 1 results 1 relationships APPROVED BY DEPT. DATE DRAWN M. BOSILKOV CHECKED A. HAZEN ENGINEER G. McHUGH CHECKED APPROVED APPROVED DATE 06.29.17 06.29.17 3 LEGE\D CWr FIRE WATER COLD WATER REMOVE UTILITY SYMBOLS CATCH BASIN 0 CLEANOUT ❑ YARD DRAIN GENERAL NOTES 1. SEE SHEET C2 -DEM -C4 -DEM FOR RELATED PROJECT NOTES. 2. SEE SHEET C31 FOR SURVEYED UTILTIES. 3. CONTRACTOR TO VERIFY LOCATION AND DEPTH OF EXISTING UTILTIES PRIOR TO DEMOLITION. 4. NOTIFY BOEING TWO (2) WEEKS IN ADVANCE OF WORK TO COORDINATE RELOCATION OF BOEING PROPERTY WITHIN PROJECT LIMITS TO AN APPROVED LOCATION. 5. ALL UTILITIES MUST REMAIN IN SERVICE UNLESS OTHERWISE SPECIFIED ON DEMOLITION PLANS. REFERE\CE DRAWINGS TIFF 109-000-1136-C1 SOUTH HALF PLAN -OXBOW LOT TIFF 109 -000 -1146 -05 -DEM SITE WORK DETAILS TIFF 109-000-1146-C7 UTILITY PLAN CONST SUCTION \OTES REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila BUILDING DIVISION REMOVE STORM DRAIN PIPE REMOVE STORM DRAIN STRUCTURE REMOVE FOOTING DRAIN DISCONNECT PIPE FROM MANHOLE. FILL AND GROUT PIPE OPENING AT MANHOLE. STORM DRAIN STRUCTURE TO REMAIN These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector. Date: 0,1 zio n REMOVAL ISSUED FOR PERMIT SUBTITLE STORM DRAINAGE PLAN - REMOVAL RECEIVED TY OF TUKWILA SEP 08 2017 PERMIT CENTER SITE KEY PLAN 30 15 0 15 30 SCALE: 1" = 30' CURRENT REVISION W4640620 SYMBOL DATE A 06.29.17 06.29.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD SHEET C162R JOB NO. COMP NO. DEV. CENTER, WA DWG ND. 09-YRD-C162R DUARTEE: 8/6/2012 NE - 30W KING T OXBO AKI OT k These plans have been Forks Departure City stand- omi `t - icwed by the Public for conformance with current =*'. Acceptance is subject to errors and ns which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector. - Date: By: 4,14.pjlit k,...p• .... SERVICE HOSE BIB 28" DEEP 8" cr) FIRE VAIN & CW SITE PLA\ SCALE 1 "=30'-0" SYM REVISION BY APPROVED DATE SYM REVISION BY APPROVED DATE A DEMOLITION OF BUILDING 09 — 150 W4640620 CEI GM 06.29.17 'EN OVAL gi,,,m:ormr(9 9FFMAN INEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity 1 resuAs I relationships ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED APPROVED BY DEPT. DATE DRAWN S.RUDELL CHECKED DATE 08.06.12 LEGE\D CW t .. 1 FIRE WATER COLD WATER REMOVE UTILITY SYMBOLS POST INDICATOR VALVE (OR SECTIONAL VALVE IF NOTED.) FIRE HYDRANT FIRE HYDRANT W/GUARD POSTS t>.(1 GATE VALVE [ CAP GE\PAL NOTES 1. SEE SHEET C2 -DEM -C4 -DEM FOR RELATED PROJECT NOTES. 2. SEE SHEET C31 FOR SURVEYED UTILTIES. 3. CONTRACTOR TO VERIFY LOCATION AND DEPTH OF EXISTING UTILTIES PRIOR TO DEMOLITION. 4. NOTIFY BOEING TWO (2) WEEKS IN ADVANCE OF WORK TO COORDINATE RELOCATION OF BOEING PROPERTY WITHIN PROJECT LIMITS TO AN APPROVED LOCATION. 5. ALL UTILITIES MUST REMAIN IN SERVICE UNLESS OTHERWISE SPECIFIED ON DEMOLITION PLANS. REFERENCE DRAWI\GS TIFF 109-000-1136-C1 SOUTH HALF PLAN -OXBOW LOT TIFF 109 -000 -1146 -05 -DEM SITE WORK DETAILS TIFF 109-000-1146-C7 UTILITY PLAN CONSTRUCTION (NOTES REMOVE 10" FIRE PROTECTION PIPING © REMOVE FIRE HYDRANT & SERVICE LEAD REMOVE SECTIONAL VALVE 4 REMOVE DOMESTIC COLD WATER PIPING © CAP END OF PIPE, PROVIDE BLOCKING REMOVE 6" FIRE PROTECTION PIPING REMOVE 2" IRRIGATION WATER PIPING CW PIPE TO REMAIN OPERATIONAL 8" FW TO REMAIN ABANDONED IN PLACE 1> PROVIDE UNDERGROUND UTILITY MARKER PER DETAIL 6/C502 -DEM WATER STRUCTURE TO REMAIN. ABANDON IN PLACE REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila BUILDING DIVISION REMOVAL ISSUED FOR PERMIT I III II III II SUBTITLE FIRE MAIN & CW SITE PLAN — REMOVAL r-- N to ---3-1 C 91 II C-2-90193'! [ o .. 295 — b296 C 97 r 298 rC29 9-00 1-101 310 C301 C302 �I NOT % • • U`:0 Ti C304 1::::) C305 C306 \7�c3o1 - i j RECEIVED pITY OF TUKWILA SEP 0 S 2017 PERMIT CENTER 30 15 0 15. 30 60 SCALE: 1" = 30' CURRENT REVISION W4640620 SYMBOL A DATE 06.29.17 ENGINEER CHECKED APPROVED APPROVED TITLE CIVIL MASTER DEMOLITION OF BUILDING 09 - 150 09-YRD 5 0311—FMR JOB NO. COMP NO. DEV. CENTER, WA DWG NO. 09-YRD-C311-FMR DUARTEE: 8/6/2012 BOW KING LEGEND G •,,,,,,, 1 NATURAL GAS REMOVE UTILITY CAP 0X30 AKI OT GE\ERAL NOTES SEE SHEET C2 -DEM -C4 -DEM FOR RELATED PROJECT NOTES. SEE SHEET C31 FOR SURVEYED UTILITIES. CONTRACTOR TO VERIFY LOCATION AND DEPTH OF EXISTING UTILITIES PRIOR TO DEMOLITION. NOTIFY BOEING TWO (2) WEEKS IN ADVANCE OF WORK TO COORDINATE RELOCATION OF BOEING PROPERTY WITHIN PROJECT LIMITS TO AN APPROVED LOCATION. ALL UTILITIES MUST REMAIN IN SERVICE UNLESS OTHERWISE SPECIFIED ON DEMOLITION PLANS. REFERENCE DRAWINGS TIFF 109-000-1136-C1 SOUTH HALF PLAN -OXBOW LOT TIFF 109 -000 -1146 -05 -DEM SITE WORK DETAILS TIFF 109-000-1146-C7 UTILITY PLAN CONSTRUCTION \OTES CUT AND CAP END OF 3" GAS LINE REMOVE 3" GAS LINE TO BUILDING PROVIDE UNDERGROUND UTILITY MARKER PER DETAIL 6/C502 -DEM REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2U11 These plans have been reviewed by the Public rr�^ Works Department for conformance with current \J City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector. Date: By: t C 91 Off, kIL C293 V 2 • u /.. 2-5, 295 — b296 , C297,298l`-C29 9-,o, 1 C301 C302 _ 3 0'243 NOT .� U D 0304 C305I \\ \--Jr1 307 C30i L PERMIT CENTER SITE KEY PLAN \ATURAL GAS SITE PLA\ -REMOVAL SCALE: 1 "=30'-0" 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity 1 resuNs 1 relationships 30 15 0 15 30 60 SCALE: 1" = 30' SYM REVISION A DEMOLITION OF BUILDING 09 — 150 W4640620 BY CEI APPROVED GM DATE SYM REVISION BY APPROVED DATE 06.29.17 Q� .&" rMr ® o'— ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED APPROVED BY DRAWN S.RUDELL CHECKED ENGINEER DATE 08.06.12 SUBTITLE NATURAL GAS SITE PLAN - REMOVAL TITLE DEMOLITION OF BUILDING 09 - 150 CHECKED APPROVED 09-YRD CURRENT REVISION W4640620 SYMBOL A DATE 06.29.17 SHEET C311-GR JOB NO. COMP NO. hi 0 DUARTEE: 8/6/2012 APPROVED CIVIL MASTER DEV. CENTER, WA DWG NO. 09-YRD-C311-GR SANITARY SEWER PUMP STATION (BY OTHERS) IE 11.80 IE 6.85 These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances, The responsibility for thc adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject thc Public Works utilities Date: REVISION DEMOLITION OF BUILDING 09 — 150 W4640620 BY CEI APPROVED DATE SYM REVISION SA 41491 n ITARY SEWED SITE PLA\ SCALE: 1 '=30'-0" BY APPROVED DATE GM 06.29.17 to field inspection by inspector. By: REMOVAL AEOFFMAN NGINEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity 1 resuNs 1 relationships ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED APPROVED BY DEPT. DATE DRAWN S.RUDELL CHECKED DATE 08.06.12 LEGE\ D SAN SANITARY SEWER FORCE MAIN • / / / / / / / REMOVE UTILITY SYMBOLS MH® SANITARY SEWER MANHOLE [ CAP GE\EAL NOTES 1. SEE SHEET C2 -DEM -C4 -DEM FOR RELATED PROJECT NOTES. 2. SEE SHEET C31 FOR SURVEYED UTILTIES. 3. CONTRACTOR TO VERIFY LOCATION AND DEPTH OF EXISTING UTILTIES PRIOR TO DEMOLITION. 4. NOTIFY BOEING TWO (2) WEEKS IN ADVANCE OF WORK TO COORDINATE RELOCATION OF BOEING PROPERTY WITHIN PROJECT LIMITS TO AN APPROVED LOCATION. 5. ALL UTILITIES MUST REMAIN IN SERVICE UNLESS OTHERWISE SPECIFIED ON DEMOLITION PLANS. REFEREN CE DRAWINGS TIFF 109-000-1136-C1 SOUTH HALF PLAN -OXBOW LOT TIFF 109 -000 -1146 -05 -DEM SITE WORK DETAILS TIFF 109-000-1146-C7 UTILITY PLAN CO\STRUCTION NOTES CUT AND CAP 8" SANITARY SEWER LINE REMOVE 8" SANITARY SEWER LINE REMOVE SANITARY SEWER STRUCTURE VALLEY VIEW SEWER DISTRICT FORCE MAIN LINE AND STRUCTURES TO REMAIN PROVIDE UNDERGROUND UTILITY MARKER PER DETAIL 6/C502 -DEM REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2011 City of Tukwila BUILDING DIVISION REMOVAL ISSUED FOR PERMIT SUBTITLE SANITARY SEWER SITE PLAN REMOVAL Cf304 0305 C306 07 0308 % RECEIVED ITV OF TUKWILA SEP 0 8 2011 PERMIT CENTER 30 15 0 15 30 60 ME mm M==- =I SCALE: 1" = 30' CURRENT REVISION W4640620 SYMBOL A DATE 06.29.17 ENGINEER CHECKED APPROVED APPROVED CIVIL MASTER DEMOLITION OF BUILDING 09 - 150 09-YRD 0311 -SAN R JOB NO. COMP NO. DEV. CENTER, WA DWG NO. 09-YRD-C311-SANR DUARTEE: 8/6/2012 IISSUED FOR PERMIT SYM / 17.96 / z / / FOUPUNCH MARK 3— /4" B r • SS DISK, IN CASE, S MPE +RTON DENNIS & AS SEATTLE WENATCHEWA' '► ELEV = 17. ,'I'P ► (3/3/2017) /l� D% l0°' 400ll'Jtllie I%► 1l 101 1 i' A' .1161:;01\ �````` ELEV = 17. a TB C171 �' ',,j/ mE NAIL AND WASHX • %% 18.3 jM -'�►. 18.11 / z ( YDW LID RIM 15.13 6" FLEX I 14.18 (TOWARDS LLOW) 8.02 ME • • • • • • / , / 2 cr • tD N u 2.13.1".?.......:.'pk.;:....,:t.:".....:::-:.--;;:r.;,'.....:.,:;4•1.:: 1,: t 4qi. h tm. '7:::::•....:711:11:4:•:.:... ;y •�r C r ::.t.. Y.:` ..f"-: is '>...y,T,s, r':::1',::::c."-::;':).11:::.1:::::$::::117:::;: ' ''. 1 L 18.84 TBC 0.5% r— 17 I� ( ��. ,-14",12"W SMH I'fr-' C% N 81 O O Z 1 1 1 2 'CA ..;: "..;: "A WL '11 54"C 16 L A, 0 N L GRADING LIMITS 9.2% EX SDMH • i 16 SSMH • • • • 58"COT • • ION SS LIFT STATIO--z4,..-;-,:-,........ iF , a• --i. fe•-i* ;C;, .,"`":.;„ REVISION BY APPROVED SAN r �..•�+ — — 04/ 1,. //43' • /, MEM MWM1 • • • • • \ `• • • \ `• • • DATE SYM REVISION SAN SAN SAN SAN BY APPROVED DATE — DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.29.17 0.e.NG` G�- 17 / WMMI SAN ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED 10),.0 gg. z ACOFMAN mm&NG1NEERS CU LV 12"DI IE = 8.09' W/SOLID LATCH GATE 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity 1 results 1 relationships APPROVED BY DEPT. DATE DRAWN M. BOSILKOV CHECKED A. HAZEN ENGINEER G. McHUGH CHECKED APPROVED APPROVED I' iitszi i�rg�Ef� � � is 1l C -r. -'a 1 ll; SITE KEY PLAN NOT TO SCALE LEGEND 0 17.46—\ ME TBC STORM DRAIN MANHOLE YARD DRAIN DRYWELL RIDGE LINE GRADING LIMITS SURFACE FLOW ARROW SPOT ELEVATION AT CURB FLOWLINE MATCH EXISTING TOP BACK OF CURB GE\ERAL \OTES 1. SEE SHEETS C2—DEM TO C4—DEM FOR RELATED PROJECT NOTES. 2. MAINTAIN ALL EROSION CONTROL MEASURES UNTIL COMPLETION OF PROJECT. 3. NOTIFY BOEING TWO (2) WEEKS IN ADVANCE OF WORK TO COORDINATE RELOCATION OF BOEING PROPERTY WITHIN PROJECT LIMITS TO AN APPROVED LOCATION. 4. PROTECT EXISTING PAVING FROM DAMAGE. CONTRACTOR MUST REPLACE ALL DAMAGED PAVING IN KIND OR BETTER. 5. ALL UTILITIES MUST REMAIN IN SERVICE UNLESS OTHERWISE SPECIFIED ON DEMOLITION PLANS. CONSTRUCTION \ OTES REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21. 2017 City of Tukwila BUILDING DIVISION LOWER EXISTING SDMH RIM TO ELEV. 15.89 REPLACE COVER WITH BEEHIVE GRATE. ADJUST RIM TO GRADE IN ACCORDANCE WITH CITY OF TUKWILA REQUIREMENTS. PROTECT EXISTING ELECTRICAL TRANSFORMER, CONCRETE PAD, AND FENCE. These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to thcse drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector. Date: DATE SUBTITLE 06.29.17 06.29.17 GRADING AND DRAINAGE PLAN r l7 $y 30 15 RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER 0 15 30 60 11111 _ SCALE: 1" = 30' CURRENT REVISION W4640620 SYMBOL DATE 06.29.17 06.29.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. SHEe171—DEM JOB NO. W4640620 COMP NO. DEV. CENTER, WA DWG ND. M. BOSIKLOV: 03/30/17 4, * 4, 4, 4, 4, 4, 4, 4, 4, 4, .4, 4, 4, 4, 4, 4, 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, z •F0UI PUNCH MARK /4" B SS DISK, IN CASE, S MPE RTON DENNIS & AS C. SEATTLE WENATCHE WA' " 10c\°° ELEV = 17. (3/3/2017) eV411.01° 4000°°\,% OS° 00 * 10°°°° TB A' NAIL AND WASHER ELEV = 17. 4, 4, 4, 4, 44, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, .4. .4. 4, .4. 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, .4' 4, .4. 4, 4, 4, 4, 4, 4, .4. 4, 4, 4, 4' 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 44' 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, .4. 4, 4, 4' 4, 4, 4, 4, 4, .4' 4, NI, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, OG 4, 4, 4, 4, 4' 4' 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 9, 4, •I, •I, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4. 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, .4. 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, * 4' 4. 4, 4, 4, 4, 4, 40 4, 4, 4, 4, 4, 4, 4, 4' 4, 4' 4, 4, 4, 4, 4, 4' 4, 4, 4, % • • 1•: . . At4 r•••Z7:4.1` r `1, 4, • 4, 4, 4, 4, 4, 4, 9, 4, 4, • 4, 4, • 4, 1 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, • ri V,: ro iit.. •-c-is ...., , „ ':•;.i..::•••..,",. ..--t1-.7.**",:.".• 0.•,..:.4-:;',....v .ri'.4•‘..•::%;.\ ::,-.:"•:',!!• 4, us.::-:-•?..".:' ";>*•;fri-'1"..% ••••i,:i..:•!*; .';•••,7k:1".•',:' •1 .1.•:;•••:;•"f:ri •.r. ;.:•••:,.••'•,; ••• :,',4•'''':- +% .."-•‘-- -:-. -. : • :-. '.... w• •:::' • :•... i',.:-. uf,&. 1 ,:x.. 'Z... ••:' s:.:4•••.**:'..• t"..?...•••:'•I' _I•.;:q;,:s4 I.: '.!:•:;,:•••;* -'4.--, :&•?••• 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, • 4, 4, 9 4, sie 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, • 4, 4, 4, 4. 9, 4, 4, 4, 4, 4, .4 4, 4 4 4, 4, 4, 4, 4, 4, 4, 4, 4, • 4, 4, 4, 4, .4. 4, 4, 4, 4, 4, 4, • 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, • 4, 4, 4. 4, 4, 4, 4, 4, 4, • 4, 4, 4, 4, 4.. 4, 4, 4, 4, 4. 4, 4, 4, 4, 4, 4, 4, •10 40 .4. 4, 4, .4. 4, .4. 4, 4, 4, 4, 4, 4, 4, .4, 4, 4, 4, 4, 4, 4, .4, 4, 4, 4, 4, 4, .4, 4, 4, 4, 4, 4, 4, .4, 4, 4, 4, 4, 4, 4, 4, 4, 44. 4, 4, .4. + 4' 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, * * 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, .4, 4, 4, 4, 4. .1, * * 4, 4, sl, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4. 4, 4, 4, 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, .4. 4, I, 4, 4, 4, 4, 9, 4, 4, 4, 4, * 4, 4, 4, 40 .4' .4' 4, 4, 4, 4, 4, + 4, 4, 1, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, '4' 4, 4, 4, 9. 4, 4. 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, * * 4, 4, 4, .4. * * * * 4, 4, 4, 4, 4, 4, •I, • 4, 4, 4, 4, 4, LAWN " 4, 4, 4, •1* 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, .4' 4, * * * 4, NI, 4, 4, 4, 4, 4, 4, * 4, 4, 4, 4. + 4, 4, 4, 4, + + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, .4' 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, * * * 4, 4, 4, 4, + 4, 4, .4, 4, 4, 4, sl, 4, I, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, .14;1 ..12•••::• ••• I .;,),*, vv. n 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, * 4, 4, 4, 4, 4, 40 4. 4, 4, 4, 4, 4, 4, 4, * 4, t;.• 4:::•••••;"":?' • •te....4••T • • REVISION DEMOLITION OF BUILDING 09-150 W4640620 BY CEI APPROVED DATE SYM • : 4, 5,117CON 1 * + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4' 4, 4, 4' 4' 4, 4, 4, 4, 4, 4, 4, 4, * 9. 4, 4, 4, 4, 4, 4, 4, * 4, 4, 4, 4, 4, •i, 4, 4, * 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, ‘4, 4, 4, 4, 4, 4, * 4, 4, 4, 4, 4, + * st, 4. + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, NY * 4, • 4, + 4, 9' 4, 4, 4, 4, 4, 4- 4, 4, 4, 4. 4, 4, 4, 4, •10 4, 4, 4, •I, 4, 4, 4, * 4. 4, sr, * 4. 4, 4, 4, 4, 4, 4, 4, 4, 4' 4, % •I, 4, 40 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, •4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 9. 4, 4, NV 4 4, 4, 4, •10 4, 4, * 4, 4, 4, * .1, * * 4, 4, 4' 4, 4, 4, 4, .4, 4, • 4, 4, 4, 4, 4, 4. 4, 4, 4, • 4, 40 4, 4, 4, 4, 4, 4, 4, 4, • 4, 4, 4. 4, 4, j'-i.i. ,,...: c...,,.„. ,....,,....,,, :.;‘,....,..."4.... i.,...„......,:... 1 ...::.:....,..„, B...,„...:‘,......., .:..„....„,::. ,.:.,,,.. ...,.:::::.,.. ...,......,,,,,, 1 ......:,...,..; ...:.,,.„... ,„,...,,......,.. ,..„...........,,,- 1 .....,.,.:„....: .......„..,....... ......:.:-.144- T:•:...,,.:1;•• :',•:,•':_,...*A ''',•r:::: ;1. 1 , I I t3 tt.c71.1.; Ln 0.1 io .41- 0 Z 40"W .;.:••.1.7 eV". .?.{"(7•7 '.2‘..;•,.;* 1 • •S.• •.• tr• ••••••rn:l... 1 41 kJ 41, 4/ 4, 4, *1°3-4", 12 " V '.. * ,•:..1,..4.1 .....:11;:•...::::..4.....:?...1%•..41,...r... .s. .. . . . . , 4, 1 :;:.a,„•:•..:...,: 4, 1 .....).4.1. ;',.....x' 4, 11 1 .,...,,,...:1::::;...: 4,„.......,:,:i.:,..;..........,..,.....„: .5,...„:...„. .,1 1 ...,,;..,,:cip::::,.. ..,..„,....,..,. .........,..,. •10 4, 4, • 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, * •4, 4, 4' 4, 4, 4, 4, 4, 4, 4, 4, 4, 40 4, 4, 4, 4, 4, 4, 9. 4, 4, 4. 4, 4, 4, 4, 40 4, 4, 4, 4, 4, 4, 4, 4, 4' 4, 4, 4, 4, * * * 4, 4, + 4' 4' 4. 4, 4, 4, 4, 4, 4, 4, NV 4, 4, 4, 4, 4, 9, 4, 4' * 9, 4, 4, 44, 4, 4, 88"COT,i, •4, 4, 4110 41111,sv A*. • •!4•Ctt, •••;',•••••• REVISION CI, 4, 4, •/, 4, 4, 4, 4, 4, • 4, 4, 4. 4, NI, • 4, 4, 4, 9, 4, • 4, 4, 4, 4, 4, + 4, 4, 40 4, 4, 4, 4, 4, 4, 4, 4, 4- 4, 4, + 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, .4. 4, .4' 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, * 4, 4, 4, 4, 4, 4, 4, 4, NI, 4, 4, 4, 4, * * 4, 4, 4, 4, 4, 4, 4, 4, NI, 4' 4, 4, 4, 4, 4, 4, * 4, 4, 4, * 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, sle 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, • 4, 4, 4, 4, 4, 4, 4, • 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, mu sm 4R•, PAVING AND STRIPING PLAN SCALE: 1"=30' BY APPROVED DATE MS 06.29.17 4, • 4, 4, • •10 4, • 4, • 4, 4, 4, 4, •/, 4, .1, 4, 4, 4, 1, 4, NV NV '4' * 4, * 4, 4, 4' 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, * 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 40 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, • 4, 4, 40 4, 4, * 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 40 * 4, 4, 4, 4, .4, * 4, 4, ft ® 4, 4, 4, 4, 4, 4, 4, - ...4...../.. 4 :,-.... P444: ..',•.,.:".' ::•14 ?•) 1,i7...1,./.......,.::::......::::.:: 0.....ci ..:..';. ...:1.::, i 7-7; .• • ?..: .: sr•i4:••• ..,:r1t....1-...,c..,.........;;::. 4, sl• *-;,:••••• ". • .:1 •'• s'r ACOFMAN AmiAGINEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity 1 results 1 relationships ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED APPROVED BY DEPT. DATE DRAWN M. BOSILKOV DATE 06.29.17 CHECKED A. HAZEN ENGINEER W. McHUGH CHECKED APPROVED APPROVED 06.29.17 . 1 fit, SITE KEY PLAN NOT TO SCALE LEGEND 4' LAWN 4' 4 ASPHALT PAVEMENT RESEED LAWN GE\ERAL NOTES 1. SEE SHEET C2 -DEM -C4 -DEM FOR RELATED PROJECT NOTES. 2. MAINTAIN ALL EROSION CONTROL MEASURES UNTIL COMPLETION OF PROJECT. 3. NOTIFY BOEING IWO (2) WEEKS IN ADVANCE OF WORK TO COORDINATE RELOCATION OF BOEING PROPERTY WITHIN PROJECT LIMITS TO AN APPROVED LOCATION. 4. PROTECT EXISTING PAVING FROM DAMAGE. CONTRACTOR MUST REPLACE ALL DAMAGED PAVING IN KIND OR BETTER. 5. ALL UTILITIES MUST REMAIN IN SERVICE UNLESS OTHERWISE SPECIFIED ON DEMOLITION PLANS. CONSTRUCTIO OTES ASPHALT PAVEMENT PER DETAIL 1/C501 -DEM. CONCRETE VERTICAL CURB PER DETAIL 5/C501 -DEM. INSTALL WHEEL STOP PER DETAIL 3/C502 -DEM. INSTALL PIV PROTECTION WITH BOLLARDS PER DETAIL 4/C502 -DEM. RESTORE STRIPING PER DETAIL 2/C502 -DEM. RESTORE STOP BAR MARKINGS PER DETAIL 1/C502 -DEM. HYDROSEED NEW LAWN AREA. SEE SHEET C2 -DEM FOR SEED MIX AND TOPSOIL INFORMATION. REVIE1NED FOR CODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila BUILDING DIVISION ISSUED FOR PERMIT SUBTITLE PAVINGAND STRIPING PLAN These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility for thc adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and vill require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject to field inspection by Le Public Works utilities inspector. Date: By: 3 120- I 7 30 15 RECEIVED CITY OF TUKWILA SEP 0r81017 PERMIT CENTER 15 30 60 SCALE: 1" = 30' CURRENT REVISION W4640620 SYMBOL DATE 06.29.17 06.29.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA SHEET C241 -DEM JOB NO. W4640620 COMP NO. DWG NO. 09-YRD-C241-DEM M. BOSIKLOV: 03/30/17 SYM CATCH BASIN GRATE PLACED OVER INSTALLED INSERT OVERFLOW BYPASS SEDIMENT ACCUMULATION CATCH 3ASI\ PROTECTIO RETRIEVAL STRAP (INSTALL THROUGH GRATE) CATCH BASIN INSERT ADAPTER SKIRT MANUFACTURED CATCH BASIN INSERT DETAIL 1 SCALE: N.T.S. EXISTING GROUND C6 -DEM TEV 12" DEPTH 6"-8" QUARRY SPALLS WHERE INDICATED ON PLAN PORAY SWALE DETAIL SCALE: N.T.S. MINIMUM BERM ELEV. MAXIMUM WATER SURFACE ELEV. 18" 0 C500 -DEM 4 C6-DEMIC500-DEM DRILL 1/2" DIA. HOLES 6" O.C., BOTH WAYS, ALL AROUND THE STANDPIPE. SURROUND STANDPIPE WITH 3/8" TO 3/4" DIA. WASHED ROCK. COVER WASHED ROCK WITH A 4" LAYER OF CLEAN SAND. EXISTING ROAD 25' - 0" R MIN. (TYP.) 4" - 8" QUARRY SPALLS AS REQUIRED - 100' MIN., EXCEPT MAY BE REDUCED TO 50' MIN. FOR SITES WITH LESS THAN ONE ACRE OF EXPOSED SOIL. 0 PLACE CONSTRUCTION GEOTEXTILE FOR SOIL STABILIZATION AND A MINIMUM OF 0.15' CRUSHED ROCK UNDER THE SPALLS, FROM THE EDGE OF THE EXISTING ROADWAY TO THE RADIUS RETURNS, ORAS DIRECTED BY THE ENGINEER. PROVIDE FULL WIDTH OF INGRESS / EGRESS AREA 15'-0"MIN. STA3ILIZED CONSTRUCTIO\ E\TRANCE 2 SCALE: N.T.S. y SPACE CHECK DAMS SO THAT POINTS "A" AND "B" ARE AT THE SAME ELEVATION BIODEGRADABLE MATERIAL - SEE WSDOT STANDARD SPECIFICATION 9-14.5(4) (TYP.) C6 -DEM C500 -DEM 8" MINIMUM DIAMETER ri5f (TYP.) 36" MAX. BETWEEN STAKES 2" x 2" x 24" UN -TREATED WOODEN STAKE (TYP.) FLOWLINE BIODEGRADABLE MATERIAL - SEE STANDARD SPECIFICATION 9-14.5(4) (TYP.) BIODEGRADABLE CHECK DAMS MAY NEED ADDITIONAL OR MODIFIED STAKING TO PREVENT UNDERCUTTING OR SCOURING. 1. CHECK DAMS SHALL MEET THE REQUIREMENTS OF STANDARD SPECIFICATIONS 8-01.3(6) AND 9-14.5(4). 2. IN CHANNELS, INSTALL THE SLOPED ENDS OF THE CHECK DAM A MINIMUM OF 8" HIGHER THAN THE SPILLWAY TO ENSURE WATER FLOWS OVER THE DAM AND NOT AROUND IT. 3. PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATION 8-01.3(15). 4. REMOVE CHECK DAMS IN ACCORDANCE WITH STANDARD SPECIFICATION 8-01.3(16). CHECK DAN S DETAIL 5 SCALE: N.T.S. BOTTOM OF POND STA\ DPIPE DETAIL WRAP STANDPIPE WITH 1/4" WIRE MESH 12" ADS OUTFALL SCALE: N.T.S. REVISION BY APPROVED DATE SYM REVISION 7 C6 -DEMI C500 -DEM BY APPROVED DATE — DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.29.17 C6 -DEM C500 -DEM • 0 0 1,0 ISOMETRIC VIEW � V%AA/Ope VAS PLASTIC COVERING DETAIL 0E- S'\G 0 GF,� Gs �— SP'r\G 2"x2"x3' WOODEN STAKE SECTION A—A OVERLAP DETAIL 3 SCALE: N.T.S. FLow POST - SEE STD. SPEC. 8-01.3(9)A GEOTEXTILE FASTEN GEOTEXTILE TO POST EVERY 6" (IN.) O.C. CV SELF-LOCKING TIE -NYLON 6/6 (MIN. GRADE), 120# MIN. TENSILE STRENGTH, UV STABILIZED C6 -DEM C500 -DEM 1. INSTALL THE ENDS OF THE SILT FENCE TO POINT SLIGHTLY UPSLOPE TO PREVENT SEDIMENT FROM FLOWING AROUND THE ENDS OF THE FENCE. 2. PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATIONS 8-01.3(9)AAND 8-01.3(15). 3, SPLICES SHALL NEVER BE PLACED IN LOW SPOTS OR SUMP LOCATIONS. IF SPLICES ARE LOCATED IN LOW OR SUMP AREAS, THE FENCE MAY NEED TO BE REINSTALLED UNLESS THE PROJECT ENGINEER APPROVES THE INSTALLATION. 4. INSTALL SILT FENCING PARALLEL TO MAPPED CONTOUR LINES. SEE NOTE 1 DURING EXCAVATION, MINIMIZE DISTURBING THE GROUND AROUND TRENCH AS MUCH AS IS FEASIBLE, AND SMOOTH SURFACE FOLLOWING EXCAVATION TO AVOID CONCENT -RATING FLOWS. COMPACTION MUST BE ADEQUATE TO PREVENT UNDERCUTTING FLOWS. BURY GEOTEXTILE IN TRENCH GEOTEXTILE FOR SILT FENCE - SEE STANDARD SPECIFICATION SECTION 9-33.2 (1), TABLE 6 SILT FE\ SEE NOTE 1 CE DETAIL SCALE: N.T.S. ACOFFMAN NGINEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.0717 I fax 206.624.3775 coffman.com LASTING creativity 1 results 1 relationships ACCEPTABILITY THIS DESIGN AND/OR 'CATION IS APPROVED APPROVED BY DRAWN M. BOSILKOV CHECKED A. HAZEN ENGINEER DATE G. McHUGH POST WOOD OR STEEL (TYPICAL) FASTEN TO POST EVERY 6" O.0 FABRIC (GEOTEXTILE) (TYPICAL) These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility foi elle adequacy of tiie design rests totally wan the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector. Date: By: ISSUED FOR PERMIT DATE SUBTITLE 06.29.17 06.29.17 r CHECKED 06.29.17 APPROVED APPROVED TITLE CIVIL MASTER TESC DETAILS DEMOLITION OF BUILDING 09-150 09-YRD SPLICED FENCE SECTIONS SHALL BE CLOSE ENOUGH TOGETHER TO PREVENT SILT LADEN WATER FROM ESCAPING THROUGH THE FENCE AT THE OVERLAP. 6 COL. DEV. CENTER, WA C6 -DEM C.500 -DEM REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila BUILDING DIVISION CURRENT REVISION W4640620 SYMBOL RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER DATE 06.29.17 �C500—DEM JOB NO. W4640620 COMP NO. DWG NO. 09-YRD-0500 -DEM M. BOSIKLOV: 03/30/17 NEW ASPHALT CONC (WSDOT HMA CLASS 1/2") NEW CRUSHED SURFACING TOP COURSE (WSDOT STD SPEC 9-03.9(3), COMPACT TO AT LEAST 95% OF MAX DRY DENSITY (ASTM D1557) e/00 oC l 0 on•0 oC (>000�0 , \// EXISTING UNDISTURBED SUBGRADE OR NEW STRUCTURAL FILL, COMPACT TO AT LEAST 95% OF MAX DRY DENSITY (ASTM D1557) NOTE: CONTRACTOR TO VERIFY EXISTING PAVING SECTION AND MATCH IF GREATER THAN SHOWN. TYPICAL ASPHALT PAVEMENT DETAIL 1 SCALE: N.T.S. SAWCUT EXISTING ASPH OR CONC PAVEMENT. APPLY LIQUID ASPHALT & SAND SEALANT TO SURFACE OF JOINT EXISTING SURFACE COURSE TACK COAT FACE OF CUT AND EACH COURSE EXISTING BASE COURSE 6" C241—DEMI C501—DEM MEET EXISTING BASE AND PAVEMENT THICKNESS, EXCEPT NOT LESS THAN DETAIL C501 —DEM EXISTING AGGREGATE BASE C " O (11-0 O '//'/////'//, //�`'\ NEW CRUSHED SURFACING TOP COURSE WDOT STD SPEC 9-03.9(3) TYPICAL TIE -INTO EXISTING PAVEMENT SCALE: N.T.S. PAVEMENT 6 1/2" 1" 5 1/2" 8 1 /4" CO\CRETE TRAFFIC CU 1/2" R DEPRESSION AT CURB RAMP FLUSH WITH ASPHALT OR CONCRETE RAMP C501—DEM SCALE: NONE REVISION DEMOLITION OF BUILDING 09-150 W4640620 BY CEI APPROVED DATE SYM (5 C241—DEM C501—DEM REVISION FINISH GRADE SAWCUT PAVING 12" OUTSIDE OF I TRENCH EDGE - /i UJ O z UJ UJ PIPING TRENCH WIDTH /.'//<'//' INSTALL ASPHALT PAVEMENT PER DETAIL C500—DEM BACKFILL SHALL EXTEND TO THE UNDERSIDE OF SLAB OR BOTTOM OF TOP COURSE CRUSHED SURFACING TOP COURSE PER WSDOT STD SPEC 9-03.9(3) PLACED IN 4—INCH LIFTS TO AT LEAST 95% OF MAX DENSITY GRAVEL PIPE ZONE BEDDING PER WSDOT STD SPEC 9-03.12(3) PLACED IN 4—INCH LIFTS TO AT LEAST 95% OF MAX DENSITY PER ASTM D1557 30" MAX OR 1.5 TIMES OUTSIDE PIPE DIAMETER OF PIPE PLUS 18", WHICHEVER IS GREATER PIPE 3EDD1\G A\D 3AC <FILL SECTIO\ SCALE: NOT TO SCALE BY APPROVED FILL PIPE WITH CONCRETE FC=4000 PSI Ic 6" SCH. 40 STEEL PIPE PAINT TRAFFIC YELLOW FINISHED GRADE ISI f. d 1'-6" DIA. CONCRETE BASE i� 4000 PSI )5 28 DAYS DETAIL -BOLLARD 6 SCALE: NONE DATE MS 06.29.17 (3 These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not: authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. _ Final acceptance is subject to field inspection by the Public Works utilities inspector. Date: By: —3.11e00(-7 '331S NOTE: UNLESS OTHERWISE SPECIFIED ON PLANS, MINIMUM DEPTH SHALL BE: 3' — FIRE LINE 2' — STORM DRAIN 1.5' — ROOF DRAIN �C501—DEM C241—DEM,C502—DEM C501—DEM ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED COL "A" THRUST BLOCK PLUG PIPE 6" SQ. STL PL, 1" THK SIDE OF TRENCH CAST J—BOX WITH 1/2" TO HUB @ PIV EXPANSION JOINT IN CONC. PAVEMENT FINISHED GRADE POST INDICATOR & OPERATOR NON— RISING STEM TYPE MUELLER NO. A-20806 POST INDICATOR VALVE MUELLER EPDXY COATED #4 REINFORCEMENT BAR PROVIDE CLEARANCE FOR BOLT REMOVAL 6" MIN. THICKNESS AROUND PIPE LOCK TYPE WRENCH PROVIDE YALE 73148 PADLOCK WITH BRASS SHACKLE, 6 PIN KEYED TO BOEING GGM — PAD SYSTEM m IIIIIIIIL II —, a~. LJ w CONC. THRUST BLOCK SEE DETAIL FOR DIMS. AND CONC. PROPERTIES POST INDICATOR A\ BOLLARD PROTECTION PER C502—DEM 1"CONDUIT AND CONDUCTORS FOR SUPERVISED VALVE ELECT. CONNECTION BY ADT. EXIST. FIRE WATER PIPE BOTTOM OF TRENCH BEARING AREA OF ONE SIDE SHALL BE SAME SIZE AS FOR TEE AND PIPE END THRUST BLOCK MIN. 6" HOOK (TYP) UNDISTURBED EARTH D VALVE DETAIL 4 C501—DEM SCALE: NONE 2" SCH 40. STL. PIPE FOR 8" DIA. MAIN AND LESS 3" SCH 40 STL. PIPE FOR 10" AND 12" DIA. MAIN 4" SCH 40 STL PIPE FOR 18" DIA. MAIN TEMPORARY DEAD END PLUG UNBALANCED CROSS (USE COLUMN A) PLUGGED TEE (USE COLUMN B) TEE PLUGGED CROSS (USE COLUMN B) 1/2" RODS THRU 10"5 1" GREATER THAN 10"0 COL A VALVE (USE COLUMN A) COL C—F =111=111=1 l i l=1 1- 1= _ •sem TYPICAL THRUST SCALE: NONE �OFFMAN N G I N E E R S 1601 Fifth Avenue, Suite 900 I Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity I results 1 relationships APPROVED BY DEPT. DRAWN M. BOSILKOV CHECKED A. HAZEN ENGINEER DATE G. McHUGH COL A -\\=111C01.—I= III H 1=1 i= COL C—F OFFSET PLUGGED CROSS (USE COLUMN A) BEND STEEL PLATE DEAD END COL A 0501—DEM NOTES: 1. CONTRACTOR TO PROVIDE BLOCKING ADEQUATE TO WITHSTAND FULL TEST PRESSURE. 2. DIVIDE THRUST BY SAFE BEARING LOAD TO DETERMINE REQUIRED AREA (IN SQUARE FEET) OF CONCRETE TO DISTRIBUTE LOAD. 3. AREAS TO BE ADJUSTED FOR OTHER PRESSURE CONDITIONS. 4. PROVIDE TWO 1" MINIMUM DIAMETER RODS ON VALVES UP THROUGH 10" DIAMETER. VALVES LARGER THAN 10" REQUIRE SPECIAL TIE ROD DESIGN. 5. USE 3000 PSI CONCRETE FOR THRUST BLOCKING. REVIEWED FOR CODE COMPLIANCE APPROVED ISSUED FOR PERMIT DATE SUBTITLE 06.29.17 06.29.17 SECTIONS AND DETAILS CURRENT REVISION W4640620 SYMBOL 7 j501 —DEM RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER DATE 06.29.17 APPROVED 06.29.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. SHC501—DEM JOB NO. W4640620 COMP NO. DEV. CENTER, WA DWG No. 09—YRD—0501—DEM M. BOSIKLOV: 03/30/17 THRUST AT FITTINGS IN POUNDS SIZE TEST PRESSURE PSI A B CD EF DEAD ENDS 90' BEND 45' BEND 30' BEND 22.5" BEND 11.25' BEND 3" 225 2768 3914 2118 1433 1080 543 4" 225 4073 5759 3117 2108 1589 798 6" 225 8393 11869 6423 4344 3275 1645 8" 225 14468 20460 11073 7489 5645 2836 10" 225 21758 30770 16652 11263 8489 4265 12" 225 30780 43529 23558 15933 12010 6034 14" 225 41355 58485 31652 21407 16136 8107 16" 225 53483 75636 40934 27685 20868 10484 24" 225 117608 166322 90013 60878 45888 23055 NOTES: 1. CONTRACTOR TO PROVIDE BLOCKING ADEQUATE TO WITHSTAND FULL TEST PRESSURE. 2. DIVIDE THRUST BY SAFE BEARING LOAD TO DETERMINE REQUIRED AREA (IN SQUARE FEET) OF CONCRETE TO DISTRIBUTE LOAD. 3. AREAS TO BE ADJUSTED FOR OTHER PRESSURE CONDITIONS. 4. PROVIDE TWO 1" MINIMUM DIAMETER RODS ON VALVES UP THROUGH 10" DIAMETER. VALVES LARGER THAN 10" REQUIRE SPECIAL TIE ROD DESIGN. 5. USE 3000 PSI CONCRETE FOR THRUST BLOCKING. REVIEWED FOR CODE COMPLIANCE APPROVED ISSUED FOR PERMIT DATE SUBTITLE 06.29.17 06.29.17 SECTIONS AND DETAILS CURRENT REVISION W4640620 SYMBOL 7 j501 —DEM RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER DATE 06.29.17 APPROVED 06.29.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. SHC501—DEM JOB NO. W4640620 COMP NO. DEV. CENTER, WA DWG No. 09—YRD—0501—DEM M. BOSIKLOV: 03/30/17 4.0' 4FT FROM EDGE OF TRAVELED WAY WHEN NO CROSSWALK IS PRESENT 2,1? �STOP C502 DEM STOP INSTALL STOP BAR AT THE END OF THE CENTER LINE. ALIGN STOP BAR PERPENDICULAR TO THE CENTER LINE. STOP BAR LENGTH SHALL NOT BE LESS THAN WIDTH OF STOP LEGEND (TYP). 3AB PLACENE\T DETAIL 1 SCALE: NOT TO SCALE ■■pii■■■■■■■■■■pummo■■■■ �F'� sp a�Y> }l,� �#,°�a,,� /�," i' (_,� i.,iy i 17 01 1■■ii ■■■I ■■■I. a ■\; 1■■i§ill■■►i l ■1I■■'■■■I■■■"I■■■��■S1■■■'°1 111110,41111111111111111 ■■■111■■■■11■ r 1 U■/ 1 ■��. X111■■■I ■■■ 11■■■■ f 1■ t "" 1ir/ ■■■111:11■■1 1111111111,111111111111111111111iiiiiiiiiii111 1111111011111111EMI ■■■1'■■■, 11 r 1■■■■ 111111111111M1111111111 MIIIIIIINMINIPM/1111111111111111111111 ■�z ,, /■■■I■■■\J vis z2%■■ 1■■■■ ■■■■■■■■■■■■■■111■■■■■■■■■ STOP NAaKI\G DETAIL C241—DEM I C502—DEM SCALE: NOT TO SCALE CO I Q- 2'-6" TYP 2'-6" TYP (6� C•02—DEM I C501—DEM SCH 40 STEEL PIPE PAINT TRAFFIC YELLOW POST INDICATOR VALVE (PIV) F— PIV GUARD DETAIL 0 1 � 1 C502—DEM 5 SCALE: NONE REVISION BY APPROVED DATE SYM C241—DEMI C502—DEM REVISION REUSE EXISTING WHEEL STOP TO BE APPROVED BY BOEING. OTHERWISE USE CONC WHEEL STOP PER DETAIL C596 0 J J C-71 _ cn x w 1 /I 01° G• 111 1.\ • Q• —1 EXISTING GRADE ) 4" WIDE SOLID WHITE STRIPE ADJUST MATCH EXISITNG WIDTH MATCH EXISITNG WIDTH TYPICAL PA <ING STALL DETAIL SCALE: NONE 25 20 15 10 5 CO r C241—DEM f C502—DEM SEAL 1/2" DEEP HOLE WITH MORTAR NOTE: TYPE "U" WHEEELSTOP 4000 PSI CONCRETE 240 LBS. PRECAST CO\CRETE WHEEL STOP SCALE: NONE 0+00 0+50 1+00 SITE CROSS SECTIO\ 1+50 2+00 2+50 3+00 3+50 25 20 15 10 5 4+00 A SCALE: 1" = 30' HORIZ 1' = 5' VERT BY APPROVED DATE DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.29.17 ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED C171—DEM C502—DEM OFFPIIAN NGINEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity 1 resuAs I relationships APPROVED BY DEPT. DATE DRAWN M. BOSILKOV CHECKED A. HAZEN ENGINEER G. McHUGH CHECKED APPROVED APPROVED DATE 06.29.17 06.29.17 (4 C241—DEM C502—DEM REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2011 City of Tukwila BUILDING DTVI • These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector. Date: By: _ . l:jj ?0120(1 /k/ VVVVV /\/\ NOTES: 3"W A CT OE LR DC A P MARKERS SHALL BE PRO—MARK MP -301 FIBERGLASS OR EQUIVALENT. LETTERING SHALL BE ON CUSTOM DECALS INSTALLED ON BOTH SIDES OF THE MARKER. 3. MARKER COLOR SHALL BE PER APWA UNIFORM COLOR CODE. UNDERGROUND UTILITY CAP MMKP DETAIL 6 SCALE: NONE iiJ�/4z3 ISSUED FOR PERMIT SUBTITLE SECTIONS AND DETAILS C311—FMR,C311 GR,C311—SANR C502—DEM CURRENT REVISION W4640620 SYMBOL RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER DATE 06.29.17 06.29.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA wC502—DEM JOB NO. W4640620 COMP NO. DWG NO. 09—YRD—0502—DEM M. BOSIKLOV: 03/30/17 FINISH GRADE EXISTING GRADE ADJUST RIM TO GRADE RIM EL 15.89 Nl. --- --- --- --- --. ---- --- --- ."'"*".'"'"''''""..."""."........:I.O.L............, 4:0—,..._,.....„ EX SDMH RIM EL 15.89 12" IE 9.04 (E) .— G M O r" j cV •N M M t^ O C Cll 03 0+00 0+50 1+00 SITE CROSS SECTIO\ 1+50 2+00 2+50 3+00 3+50 25 20 15 10 5 4+00 A SCALE: 1" = 30' HORIZ 1' = 5' VERT BY APPROVED DATE DEMOLITION OF BUILDING 09-150 W4640620 CEI MS 06.29.17 ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED C171—DEM C502—DEM OFFPIIAN NGINEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity 1 resuAs I relationships APPROVED BY DEPT. DATE DRAWN M. BOSILKOV CHECKED A. HAZEN ENGINEER G. McHUGH CHECKED APPROVED APPROVED DATE 06.29.17 06.29.17 (4 C241—DEM C502—DEM REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2011 City of Tukwila BUILDING DTVI • These plans have been reviewed by the Public Works Department for conformance with current City standards. Acceptance is subject to errors and omissions which do not authorize violations of adopted standards or ordinances. The responsibility for the adequacy of the design rests totally with the designer. Additions, deletions or revisions to these drawings after this date will void this acceptance and will require a resubmittal of revised drawings for subsequent approval. Final acceptance is subject to field inspection by the Public Works utilities inspector. Date: By: _ . l:jj ?0120(1 /k/ VVVVV /\/\ NOTES: 3"W A CT OE LR DC A P MARKERS SHALL BE PRO—MARK MP -301 FIBERGLASS OR EQUIVALENT. LETTERING SHALL BE ON CUSTOM DECALS INSTALLED ON BOTH SIDES OF THE MARKER. 3. MARKER COLOR SHALL BE PER APWA UNIFORM COLOR CODE. UNDERGROUND UTILITY CAP MMKP DETAIL 6 SCALE: NONE iiJ�/4z3 ISSUED FOR PERMIT SUBTITLE SECTIONS AND DETAILS C311—FMR,C311 GR,C311—SANR C502—DEM CURRENT REVISION W4640620 SYMBOL RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER DATE 06.29.17 06.29.17 TITLE CIVIL MASTER DEMOLITION OF BUILDING 09-150 09-YRD COL. DEV. CENTER, WA wC502—DEM JOB NO. W4640620 COMP NO. DWG NO. 09—YRD—0502—DEM M. BOSIKLOV: 03/30/17 These 1 Works De City st, ndards. omission, adopted stan for the adequac iesigner. A drawings afte a (I will require a subsequent approv ent for itch reviewed by the onformanc eptance is subject authorize violation ccs. The responsib` n rests tota ons or revisions to oid this acceptance revised drawings or ie des' itions, d AINLINE PIPE IN E TRENCH AS LATERAL 0 TALL MAINLINE PIPI ENCH AS LATERAL DE OF EX. LOT. DO NOT INLINE IN A.C. �T PAVING S, ALONG ST KING acceptance the Public Works uti ject o inspection by s in,pect PAR ATER 1Y" LEGE\D (THIS SHEET) THIS SHEET U.N.O. TORO XP -300—P LAWN ROTOR SPRINKLER, 'Q. 50 PSI, (ARC & NOZZLE SIZE INDICATED) 0 \ L. WEATHERMATIC 33-500 LAWN SPRAYS (NOZZLE SIZE INDICATED) H THIS SHEET U.N.O. TORO XP-300P—X-09 ROTOR LAWN SPRINKLER (ARC 6. INDICATED ON PLAN) 50 PSI, 40' RADIUS Q F H QO .Cot TORO 30X-00—XX LAWN STREAM ROTOR (ARC & NOZZLE SIZE INDICATED) Q SPECIAL ARC 01"1.. THIS SHEET U.N.O. TORO 300 LAWN STREAM ROTOR SPRINKLER, 30X-00-02, 50 PSI, (01 & 03 NOZZLE WHERE NOTED ON PLAN) LIGHT POLE WEATHERMATIC 8000 CR AUTOMATIC REMOTE CONTROL VALVE TE CONTROL V W R SERVICE AIN F CON EE CU N DETAIL CUT—IN & METER SEE DETAILS 1.5181 LS212 LS181 LS212 VX1—LS181 2" LATERAL IS IN COMMON DITCH W/MAIN NEXT TO PATH VX10—LS181 iY4 LATERAL IS IN COMMON DITCH 1Y" W/MAIN WHERE ADJACENT PVC SLEEVE BURIED) GENERAL NOTES 1.) WINTERIZE BY MEANS OF COMPRESSED AIR INJECTED AT 1" QVC IN CUT—IN ASSEMBLY 2.) PROVIDE 3 AUXILIARY WIRES FROM CONTROLLER TO VX14 VIA VX10 PASS & LOOP © ALL VALVE LOCATIONS 3.) MAINLINE Sc WIRING NEAR ACTIVITY CENTER TO BE AT 24" COVER. VALVE DATA THIS SHEET VALVE NO. VX1—LS181 VX2—LS181 VX3—LS181 VX4—LS181 VX9—LS181 GPM 79 80 77 80 77 SIZE TYPE 2" 2" 2" 2" 2" '1 X 0 GCO 202' CONTROL WIRE TAPED UNDER MAIN CD THIS POINT 1Y" 1Y 0 TREE 1Ya" 109-000-1138—C1.tif 109-000-4071—M 1.tif 109-000-4072—M 1.tif 109-000-1146—C 18.tif REVIEWED FOR CODE COMPLIANCE APPROVED SES' a 1 2017 C C [\ STR U CTI O N\ OTES 07 NOZZLE '1 " 07 NOZZLE VX3—LS181 VX4—LS181 LATERAL IS IN COMMON DITCH W/MAIN WHERE ADJACENT /1" 202' 210' REMOVE CONTROLLER(S) WITHIN LIMITS OF CONSTRUCTION BOUNDARY REMOVE IRRIGATION LINES/WIRES WITHIN LIMITS OF CONSTRUCTION BOUNDARY THE IRRIGATION LINES/WIRES TO BE ABANDONED IN PLACE BEYOND LIMITS OF CONSTRUCTION BOUNDARY PROTECT IRRIGATION MAIN — TO REMAIN VX9—LS18 REMOVAL RECEIVED CITY OF TUKWILA n LA\DSCAPE RRIGATIO\ SITE PLAN -SEN SCALE: 1 "=30' OVAL 111,9F,FimAN 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity results relationships REVISION APPROVED SYM REVISION BY APPROVED DATE DEMOLITON OF BUILDING 09 — 150 W4640620 06.29.17 Q,�BOE/NG' ACCEPTABILITY THIS DESIGN AND/OR CATION IS APPROVED APPROVED BY DEPT. DRAWN CHECKED DATE ISSUED FOR PERMIT SEP 08 2017 PERMIT CENTER SITE KEY PLAN SUBTITLE LAWN SPRINKLER PLAN - REMOVAL ENGINEER DATE DEMOILITON OF BUILDING 09-150 CHECKED APPROVED 09-YRD CURRENT REVISION W4640620 SYMBOL A SHEET LSI8IR JOB NO. DATE 06.29.17 W4640620 COMP NO. APPROVED CIVIL MASTER COL. DEV. CENTER, WA DWG NO. 09—YRD—LS181 R DUARTEE: 08/22/12 06:07 SYM REVISION BY DATE REVISION BY APPROVED DATE ORIG DEMOL11ON OF BUILDING 09-150 W4640620 CEI E0 05.02.17 BOE/A/G• REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2017 • City of Tukwila BUILDING DIVISION fq NGINEERS 1601 Fifth Avenue, Suite 900 l Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity I results! relationships ACCEPTABIUTY THIS DEIGN AND/OR SPECIFICATION IS APPROVED DEPT. DATE DRAWN CZABEOKED E. OAA ENGINEER DATE 05.02.17 05.02.17 APPROVED ARCHITECTURAL/GENERAL NOTES: 1. CONTRACTOR SHALL PROVIDE AND INSTALL A TEMPORARY CHAIN LINK PERIMETER FENCE AROUND THE DEMOLITION AREA PRIOR TO UTILITIES DISCONNECT. WHERE POSSIBLE, MAINTAIN A MINIMUM OF 20 FEET CLEAR AROUND THE BUILDING FOR FIRE PROTECTION. 2. CONTRACTOR SHALL OBTAIN A BOEING FIRE DEPARTMENT PERMIT BEFORE STARTING ANY FIRE, WELDING, FLAME OR SPARK PRODUCING OPERATIONS. OBTAIN NEW PERMITS FOR EACH CRAFT, FOR EACH SHIFT DAILY BY CALLING 206.655.8800, GIVING LOCATION. 3. CONTRACTOR SHALL COMPLY WITH ALL SAFETY REGULATIONS AND CODES PERTAINING TO HANDLING AND STORAGE OF FUEL 4. CONTRACTOR SHALL COORDINATE SHUT—OFF OF FIRE MAINS WITH THE BOEING CONSTRUCTION MANAGER. CONTRACTOR SHALL SCHEDULE WORK TO MINIMIZE DOWN TIME. CONTRACTOR SHALL NOTIFY CONSTRUCTION MANAGER AT LEAST 1 WEEK IN ADVANCE OF SHUT OFF. CONTRACTOR SHALL OBTAIN WRITTEN APPROVAL OF SHUT OFF. TEMPORARY SHUT OFF OF FIRE MAIN FOR MAINTENANCE OR PHASE 1 MODIFICATION WORK EFFORT CANNOT CEASE UNTIL SPRINKLER SYSTEM IS RETURNED TO OPERATIONAL STATUS. 5. TOBACCO PRODUCTS AND/OR SMOKING IS PROHIBITED WITHIN BUILDINGS OR ON BOEING PROPERTY. 6. CONTRACTOR SHALL NOT PERMIT CONCENTRATIONS OF DUST AND FUMES TO REACH LEVELS THAT ARE HAZARDOUS TO HEALTH OR A POTENTIAL FIRE OR EXPLOSION HAZARD. INTERRUPTION OF UTIUTY SERVICES SUCH AS (BUT NOT LIMITED TO) WATER, SANITARY SEWER, ELECTRICITY, COMMUNICATIONS, HEATING AND AIR CONDITIONING SYSTEMS, SHALL OCCUR AT SUCH TIMES AS PERMITTED BY BOEING OPERATIONS. CONTRACTOR SHALL NOT PROCEED WITH WORK AFFECTING UTILITIES WITHOUT THE PRIOR WRITTEN APPROVAL, INCLUDING SCHEDULE BY BOEING CONSTRUCTION MANAGER. GENERALLY, SUCH OUTAGES OR DISRUPTION OF UTILITY SERVICE SHALL OCCUR AND/OR BE CAUSED BY THE CONTRACTOR ONLY ON SATURDAYS, SUNDAYS OR OTHER BOEING NON—WORK DAYS OR OTHER PERIODS AS APPROVED BY THE BOEING CONSTRUCTION MANAGER AT NO ADDITIONAL COST TO THE BOEING CO. 8. WATER AND ELECTRICAL UTILITIES SHALL BE PROVIDED BY BOEING. 9. THE CONTRACTOR SHALL PROTECT AND NOT DAMAGE OR CAUSE TO BE DAMAGED ANY STRUCTURES, PARKING LOTS, DRIVES, STREETS, SIDEWALKS, UTILITIES, LAWNS, AREA OUTSIDE OF DEMOLITION UMITS AS SHOWN ON THE PLANS OR ANY OTHER PROPERTY ADJACENT TO PARCELS RELEASED FOR DEMOLITION WHETHER OR NOT THE PROPERTY IS SCHEDULED FOR FUTURE DEMOLITION. CONTRACTOR SHALL CONFIRM THE DEMOLITION AND WORK LIMITS WITH THE BOEING CONSTRUCTION MANAGER. CONTRACTOR IS RESPONSIBLE FOR REPAIRS OF DAMAGE AND/OR REPLACEMENT AS A RESULT OF CONSTRUCTION ACTIVITY TO ANY EXISTING FEATURES THAT ARE TO REMAIN AT NO COST TO THE OWNER. 10. THE CONTRACTOR SHALL PROVIDE SUCH SHEETING AND SHORING AS REQUIRED TO PROTECT ADJACENT PROPERTY DURING DEMOLITION. CARE MUST ALSO BE TAKEN TO PREVENT THE SPREAD OF DUST AND FLYING PARTICLES. CONTRACTOR IS SOLELY RESPONSIBLE FOR SAFETY AND COMPLIANCE WITH ALL AGENCY RULES AND REGULATIONS. 11. ASBESTOS CONTAINING MATERIALS (ACM) HAVE BEEN IDENTIFIED AND QUANTIFIED BY BOEING. REMOVAL DRAWINGS FOR THE ASBESTOS CONTAINING MATERIAL WILL BE PRODUCED BY BOEING. ALL ASBESTOS CONTAINING MATERIAL FROM THE BUILDING SHALL BE REMOVED AND DISPOSED OF BY THE CONTRACTOR. 12. CONTRACTOR TO COORDINATE WITH BOEING TO IDENTIFY AND DEFINE ALL HAZARDOUS MATERIALS. ALL HAZARDOUS MATERIALS SHALL BE REMOVED BY THE CONTRACTOR TO BOEING PROVIDED CONTAINERS. BOEING TO DISPOSE OF ALL HAZARDOUS MATERIALS. 13. CONTRACTOR SHALL RECYCLE ALL MATERIALS THAT ARE ECONOMICALLY FEASIBLE. 14. CONTRACTOR SHALL ASSURE THAT ALL NECESSARY PERMITS HAVE BEEN OBTAINED PRIOR TO COMMENCING WORK, INCLUDING DEMOLITION AND GRADING (BY BOEING). CONTRACTOR SHALL COORDINATE PERMITTING WITH BOEING CONSTRUCTION MANAGER AND PROVIDE COPIES OF ALL PERMITS. 15. ASBESTOS ABATEMENT MUST BE APPROVED BY PUGET SOUND CLEAN AIR AGENCY PRIOR TO DEMOLITION, CONTRACTOR IS RESPONSIBLE FOR OBTAINING ALL PERMITS FROM THIS AGENCY. 16. ALL UTILITIES AND SERVICES INCLUDING BUT NOT LIMITED TO GAS, WATER, HOT WATER, CHILLED WATER, FIRE MAINS, ELECTRIC, SANITARY AND STORM SEWER, TELEPHONE, CABLE, FIBER OPTIC CABLE, ETC. WITHIN THE UMITS OF DISTURBANCE SHALL BE DEFINED AND VERTICALLY AND HORIZONTALLY LOCATED. 17. THE CONTRACTOR SHALL USE AND COMPLY WITH THE REQUIREMENTS OF THE APPUCABLE UTILITY NOTIFICATION SYSTEM TO LOCATE ALL THE UNDERGROUND UTILITIES. 18. IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO REVIEW ALL OF THE DRAWINGS AND SPECIFICATIONS ASSOCIATED WITH THE PROJECT WORK SCOPE PRIOR TO THE INITIATION OF DEMOLITION. SHOULD THE CONTRACTOR FIND A CONFLICT WITH THE DOCUMENTS RELATIVE TO THE SPECIFICATIONS OR THE RELATIVE CODES, IT IS THE CONTRACTOR'S RESPONSIBIUTY TO NOTIFY THE BOEING CONSTRUCTION MANAGER IN WRITING PRIOR TO THE START OF CONSTRUCTION. 19. THE CONTRACTOR IS RESPONSIBLE TO PROTECT AND MAINTAIN ALL ACTIVE UTILITY SYSTEMS OR SERVICES THAT ARE NOT BEING REMOVED AND/OR RELOCATED DURING SITE ACTIVITY. THE CONTRACTOR IS RESPONSIBLE FOR REPAIRS OF DAMAGE AND/OR REPLACEMENT AS A RESULT OF CONSTRUCTION ACTIVITY TO ANY EXISTING FEATURES THAT ARE TO REMAIN AND/OR UTILITY SYSTEMS AT NO COST TO THE OWNER. RECEIVED CITY OF TUKWILA SEP 08 2017 ISSUED FOR PERMIT SUBTITLE TITLE STRUCTURAL MASTER GENERAL NOTES DEMOLITION OF BUILDING 09-150 BUILDING 09-150 DEV. CENTER, WA PERMIT CENTER CURRENT REVISION SYMBOL p W4640620 R I G DATE 05.02.17 @A1 -DEM JOB NO. W4640620 COMP NO. DWG NO. 109-150-A1—DEM REVISION BY APPROVED DATE 1 E N FLOOR PLAN SCALE: 1/16" = 12-0" REVISION BY APPROVED DATE DEMOLITION OF BUILDING 09-150 W4640620 CEI E0 05.02.17 (4) 6 Ca RE OVAL Q�BOE/NC° ACOFFMAN NGINEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity results 1 relationships ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRAWN DATE CHECKED A LEGEND: GENERAL NOTES: REFERENCE DRAWINGS: 109-150-1000-A-1 - CONSOLIDATED PLANS / WALL TYPES 109-150-1000-A-2 - FIRST FLOOR - NORTH SECTION 109-150-1000-A-3 - FIRST FLOOR - SOUTH SECTION b17 DEMO BASKETBALL COURT. DEMO FIRST FLOOR. DEMO ELEVATOR PIT. SEE GEOTECHNICAL REPORT FOR DEMO RECOMMENDATIONS. DEMO ALL WALLS. ISSUED FOR PERMIT SUBTITLE FLOOR PLAN - REMOVAL CURRENT REVISION W4640620 REVIEWED FOR DE COMPLIANCE APPROVED SEP 21 2017 4 City of Tukwila BUILDING DIVISION SYMBOL RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER A DATE 05.02.17 ENCINEER CHECKED APPROVED APPROVED DEMOLITION OF BUILDING 09-150 BUILDING 9-150.1 ARCHITECTURAL MASTER COL. A—K / 1-16 DEV. CENTER, WA SHEET 1A01R JOB NO. COMP NO. DWG NO. 109-150-1A01R 1.00.11A D1/ c c c cs Q REVISION DEMOLITION OF BUILDING 09-150 W4640620 BY CEI APPROVED DATE SYM SCALE: 1/16" = 1'-0" REVISION BY APPROVED DATE E0 05.02.17 REMOVAL BOE/AG° ri- AFOFRAAN NGINEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativityresults relationships ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRAWN DATE CHECKED ENGINEER CHECKED bra7 A LEGEND: GENERAL NOTES: ASBESTOS NOTIFICATION A GOOD FAITH SURVEY OF THE WORK AREA HAS BEEN CONDUCTED AND ASBESTOS CONTAINING MATERIAL WAS NOT DISCOVERED THAT WOULD BE INVOLVED IN THE CONSTRUCTION OF THIS PROJECT. DO NOT REMOVE, DAMAGE, OR DISTURB ANY ASBESTOS MATERIAL ADJACENT TO THE WORK AREA. PLEASE CONTACT BOEING FACILITIES DEPARTMENT IF MATERIAL CONTAINING ASBESTOS IS DAMAGED OR IS DISCOVERED THAT IS REQUIRED TO BE REMOVED TO SUPPORT THE WORK. 1. COORDINATE WORK WITH ALL TRADES REQUIRED TO COMPLETE THE WORK. 2. LEAVE WORK AND STAGING AREAS CLEAN AND UNCLUTTERED AT THE END OF EACH DAY AND THE END OF THE JOB. 3. REMOVE ALL DEMOLISHED MATERIALS FROM BOEING PROPERTY. 4. REMOVE ALL TOOLS AND MATERIALS FROM THE WORK AREA. 5. NO CHANGES SHALL BE MADE- TO THE DRAWINGS WITHOUT WRITTEN APPROVAL BY THE FACILITIES ENGINEER RESPONSIBLE FOR THAT PORTION OF THE WORK. 6. POST ALL CITY SIGNED & STAMPED: DRAWINGS, SPECS, AND INSPECTION RECORDS VISIBLE AND EASILY ACCESSIBLE AT THE JOB SITE PRIOR TO COMMENCEMENT OF ANY WORK. ALL DOCUMENTS AFORE—MENTIONED AND THE OCCUPANCY PERMIT HAS BEEN ISSUED, AT WHICH TIME ALL DOCUMENTS SHALL BE DELIVERED TO TERRY BENNETT, BUILDING 9-51 2ND FLOOR, COLUMN N1. REFERENCE DRAWINGS: 109-150-1000—A-1 — CONSOLIDATED PLANS / WALL TYPES 109-150-1000—A-4 — SECOND FLOOR — NORTH SECTION 109-150-1000—A-5 — SECOND FLOOR — SOUTH SECTION �► DEMO SECOND FLOOR. DEMO STAIRS. D► DEMO TRACK. ISSUED FOR PERMIT SUBTITLE FLOOR PLAN - REMOVAL APPROVED APPROVED TITLE DEMOLITION OF BUILDING 09-150 BUILDING 9-150.2 ARCHITECTURAL MASTER COL. A—K / 1-16 DEV. CENTER, WA CURRENT REVISION W4640620 SHEET REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila BUILDING DIVISION SYMBOL RECEIVED CITY OF TUKWILA SEP 08 2017 PERMIT CENTER DATE 05.02.17 2A01 R JOB NO. COMP NO. ARM1: 5/16/2002 2:18:37 PM DWG NO. 109-150-2A01 R SYM A yi J\ B C 0 E ' F G H JEi C'D II II U L II A,, 11 — — — II — A 3w{ `T II T f}. , i►- 11fI — _ —I1 — — — — II — 1t r REVISION DEMOLITION OF BUILDING 09-150 W4640620 BY CEI APPROVED DATE SYM REVISION BY FLOO PLAN SCALE: 1/8" = 1 -0" APPROVED DATE E0 05.02.17 REMOVAL 01...__,M,&117S a> " Mt' A ACOFFMAN N G I N E E R S 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity I results I relationships ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DRAWN EDDIE P. DUARTE CHECKED LEGEND: GENERAL NOTES: • 109-150-1000-A-1 - CONSOLIDATED PLANS / WALL TYPES 109-150-1000-A-2 - FIRST FLOOR - NORTH SECTION _Akar_Ia'.i'r /gra. ` . J• �► DEMO BASKETBALL COURT. DEMO STAIRS. DEMO ALL WALLS. REVIEWED FOR ODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila ASUILOING DIVISION ISSUED FOR PERMIT RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER 0 0 0 0 O 0 0 0 0 0 M,Er% " �ra0r' "AZ'ZZr BAR 0 0 O 0 0 Fi immoomm C.. omonnom ommonom DATE 07.26.02 SUBTITLE DATE ENGINEER TITLE FLOOR PLAN - REMOVAL DEMOLITION OF BUILDING 09-150 CURRENT REVISION W4640620 CHECKED APPROVED APPROVED BUILDING 9-150.1 ARCHITECTURAL MASTER COL. A -K / 1-16 DEV. CENTER, WA SHEET JOB NO. DWG NO. SYMBOL A DATE IAIOR 05.02.17 COMP NO. 109-150-1A1OR 0 co 0 ci N DIITMARM 1: 5/16/2002 3 REVISION REDRAWN FROM MYLAR 109-150-4152-M1 DEMOLITION OF BUILDING 09-150 W4640620 BY C. HARRAH CEI APPROVED DATE SYM REVISION BY FLOOR PLAN SCALE: 1/8" = 1 -0" APPROVED DATE EO 07.29.02 05.02.17 REMOVAL iBOE/NG° o� AEOFFMAN NGINEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.0717 1 fax 206.624.3775 coffman.com LASTING creativity 1 results 1 relationships ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRAWN C. HARRAH CHECKED LEGEND: 0 GENERAL NOTES: 109-150-1000-A-1 - CONSOLIDATED PLANS / WALL TYPES 109-150-1000-A-4 - SECOND FLOOR - NORTH SECTION A REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2011 City of Tukwila BUILDING DIVISION o ig 3 ISSUED FOR PERMIT DATE SUBTITLE 07.29.02 FLOOR PLAN - REMOVAL RECEIVED CITY OF TUKWIL SEP 0 8 2017 U 0 0 0 0 0 0 0 0 0 i// EVOA/% �///� AZ AWA=FA4JJI 0 PERMIT CENTER 111111•11•11M1 --111111•11•11M1-— --- -- •i• : ■M■■ 1111111•111111111=mum= IMMUNE. =mum= =�= I•I•I• mmusi CURRENT REVISION W4640620 SYMBOL A DATE 05.02.17 ENGINEER TITLE MECHANICAL MASTER DEMOLITION OF BUILDING 09-150 BUILDING 9-150 COL. A -K/1-6 DEV. CENTER, WA SHEET 2AIOR JOB NO. COMP NO. DWG NO. 109-150-2A1OR DUARTEE: 7/26/2002 8:53:33 AM - 1 1 - A iii- - - = HI- - - H } A,34iii 11 11 — f1 1, - 1 - 1 _ I - A gut,, to - 11 11 Vs - - — — — REVISION REDRAWN FROM MYLAR 109-150-4152-M1 DEMOLITION OF BUILDING 09-150 W4640620 BY C. HARRAH CEI APPROVED DATE SYM REVISION BY FLOOR PLAN SCALE: 1/8" = 1 -0" APPROVED DATE EO 07.29.02 05.02.17 REMOVAL iBOE/NG° o� AEOFFMAN NGINEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.0717 1 fax 206.624.3775 coffman.com LASTING creativity 1 results 1 relationships ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRAWN C. HARRAH CHECKED LEGEND: 0 GENERAL NOTES: 109-150-1000-A-1 - CONSOLIDATED PLANS / WALL TYPES 109-150-1000-A-4 - SECOND FLOOR - NORTH SECTION A REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2011 City of Tukwila BUILDING DIVISION o ig 3 ISSUED FOR PERMIT DATE SUBTITLE 07.29.02 FLOOR PLAN - REMOVAL RECEIVED CITY OF TUKWIL SEP 0 8 2017 U 0 0 0 0 0 0 0 0 0 i// EVOA/% �///� AZ AWA=FA4JJI 0 PERMIT CENTER 111111•11•11M1 --111111•11•11M1-— --- -- •i• : ■M■■ 1111111•111111111=mum= IMMUNE. =mum= =�= I•I•I• mmusi CURRENT REVISION W4640620 SYMBOL A DATE 05.02.17 ENGINEER TITLE MECHANICAL MASTER DEMOLITION OF BUILDING 09-150 BUILDING 9-150 COL. A -K/1-6 DEV. CENTER, WA SHEET 2AIOR JOB NO. COMP NO. DWG NO. 109-150-2A1OR DUARTEE: 7/26/2002 8:53:33 AM A LEGEND: GENERAL NOTES: 109-150-1000—A-1 — CONSOLIDATED PLANS / WALL TYPES 109-150-1000—A-3 — FIRST FLOOR — SOUTH SECTION REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila BUILDING DIVISION RECEIVED CITY OF TUKWILA SEP 0 8 2011 PERMIT CENTER 0 0 0 0 0 0 0 0 0 0 NMI MIME ■M ■■=■ RIM 'MIN ..- NEM 0 0 mom D////frlA WA V A' '7// %/A', Air Ar//2 AV/Air ///- 'Yui/ 4V/Ar//AEN r Air 4 rArd COMER WA WA WA rt c REMOVAL !FFMAN INEERS 1601 Fifth Avenue, Suite 900i Seattle, WA 98101 ph 206.623.0717 1 fax 206.624.3775 coffman.com LASTING creativity 1 results 1 relationships SYM REVISION BY APPROVED DATE SYM REVISION BY APPROVED DATE DEMOLITION OF BUILDING 09-150 W4640620 CEI E0 05.02.17 Q� BOE/NG' ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRAWN EDDIE P. DUARTE CHECKED DATE 07.26.02 SUBTITLE ISSUED FOR PERMIT FLOOR PLAN - REMOVAL ENGINEER CHECKED APPROVED APPROVED TITLE DEMOLITION OF BUILDING 09-150 BUILDING 09-150 STRUCTURAL MASTER COL. A -K / 1-16 DEV. CENTER, WA CURRENT REVISION W4640620 SHEET SYMBOL DATE A 05.02.17 1A11R JOB NO. COMP NO. DWG NO. 109-150-1A11R ('Fl• n3/in/17 LEGEND: GENERAL NOTES: 109-150-1000—A-1 — CONSOLIDATED PLANS / WALL TYPES 109-150-1000—A-5 — SECOND FLOOR — SOUTH SECTION REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila BUILDING DIVISION 0 0 0 0 0 0 0 0 0 0 FL00. PLAN SCALE: 1/8" = 1'-0" RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER 1601 Fifth Avenue, Suite 900 I Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity I results I relationships REVISION DEMOIJTION OF BUILDING 09-150 SYM REVISION BY APPROVED DATE W4640620 05.02.17 BOE/NC° - ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DRAWN EDDIE P. DUARTE CHECKED ENGINEER DATE 07.26.02 90% SUBMITTAL ISSUED FOR PERMIT DJ��i�, /�/A��'�,�. M �'A A iiiawry 0FrAvAr Ari t? 7//. IN%o//VAMP �%//%/moi%//r A5992 c KEY PLAN SCALE: NONE SUBTITLE DATE TITLE FLOOR PLAN - REMOVAL DEMOLITION OF BUILDING 09-150 CURRENT REVISION W4640620 SHEET CHECKED APPROVED APPROVED BUILDING 9-150 SYMBOL A 05.02.17 2AIIR JOB NO. COMP NO. ARCHITECTURAL MASTER COL. A—K/6-16 DEV. CENTER, WA DWG NO. 109-150-2A11 R LEGEND: SLOPE SLOPE SLOPE SLOPE 0 14 11 13 w a 0 i RIDGE W 0 15 W CD 0 SLOPE SLOPE SLOPE SLOPE SLOPE SLOPE GENERAL NOTES: 109-150-1000-A-6 - ROOF PLAN AND DETAILS ROOF PLAN REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2011 REMOVAL 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.0717 1 fax 206.624.3775 coffman.com LASTING creativity l results l relationships SYM REVISION A REPLACE 9-150 ROOFTOP AHUS J#420735-01 DEMOLITION OF BUILDING 09-150 W4640620 BY GMM CEI APPROVED DATE SYM REVISION BY APPROVED DATE E0 08.21.02 05.02.17 Q�BOE/NG° o'— ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DRAWN G.MILLER CHECKED DATE 90% SUBMITTAL ISSUED FOR PERMIT RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER SUBTITLE ROOF PLAN - REMOVAL DATE ENCINEER G.MILLER CHECKED TITLE DEMOLITION OF BUILDING 09-150 APPROVED APPROVED BUILDING 09-150 ARCHITECTURAL MASTER COL. A -K/1-12 CURRENT REVISION W4640620 SYMBOL 05.02.17 SHEET RFA160R JOB NO. COMP NO. MG124D: 7/30/2013 9:57:46 AM DEV. CENTER, WA DWG NO. 109-150-RFA160R 1 W CD 0 SLOPE SLOPE 3 ��$r 2 1111 11 8 W 0 0 E SLOPE SLOPE _ ° ' 6 'L12-1 5 I . o �I i ff i1 111 ° o 11 1 10 0 GENERAL NOTES: 109-150-1000-A-6 - ROOF PLAN AND DETAILS ROOF PLAN REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2011 REMOVAL 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.0717 1 fax 206.624.3775 coffman.com LASTING creativity l results l relationships SYM REVISION A REPLACE 9-150 ROOFTOP AHUS J#420735-01 DEMOLITION OF BUILDING 09-150 W4640620 BY GMM CEI APPROVED DATE SYM REVISION BY APPROVED DATE E0 08.21.02 05.02.17 Q�BOE/NG° o'— ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DRAWN G.MILLER CHECKED DATE 90% SUBMITTAL ISSUED FOR PERMIT RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER SUBTITLE ROOF PLAN - REMOVAL DATE ENCINEER G.MILLER CHECKED TITLE DEMOLITION OF BUILDING 09-150 APPROVED APPROVED BUILDING 09-150 ARCHITECTURAL MASTER COL. A -K/1-12 CURRENT REVISION W4640620 SYMBOL 05.02.17 SHEET RFA160R JOB NO. COMP NO. MG124D: 7/30/2013 9:57:46 AM DEV. CENTER, WA DWG NO. 109-150-RFA160R STRUCTURAL A33.KVIATIONS °, DEG 0, DIA (E), EXIST #, NO #, LB AB ABV ADDL ADH ADJ AFS ALT ALUM APPROX AR ARCH ASPH ASSY BASE PL BLDG BLKG BLW BM(S) BO xxx BOS BOT BRB BRG BS BTWN C CANT CDF CEM PLAS CIP CJ CJP CL CLR CMU COL CONC CONN CONSTR CONT CONTR COORD CSK CTR D DC DBL DEG DEMO DET DEV DIA DIAG DIM DIST DN DWG DWL EA EF EJ EL ELEC ELEV EMBED EOS EQ EQL SPCD EQUIP ES ESC EW EXP EXT SYM - AND - AT - DEGREE - DIAMETER - EXISTING - NUMBER - POUND - ANCHOR BOLT - ABOVE ADDITIONAL - ADHESIVE - ADJACENT - ABOVE FINISHED SLAB - ALTERNATE - ALUMINUM - APPROXIMATE - AS REQUIRED - ARCHITECTURAL - ASPHALT - ASSEMBLY - BASE PLATE - BUILDING - BLOCKING - BELOW - BEAM(S) - BOTTOM OF xxx - BOTTOM OF STEEL - BOTTOM - BUCKLING RESTRAINED BRACE - BEARING - BOTH SIDES - BETWEEN - CHANNEL - CANTILEVER - CONTROLLED DENSITY FILL - CEMENT PLASTER - CAST -IN-PLACE - CONSTRUCTION JOINT/CONTROL JOINT - COMPLETE JOINT PENETRATION WELD - CENTER LINE - CLEAR(ANCE) - CONCRETE MASONRY UNIT - COLUMN - CONCRETE - CONNECT(ION) - CONSTRUCTION - CONTINUOUS - CONTRACTOR - COORDINATE - COUNTER SUNK - CENTER(ED) - DEPTH/DEEP - DEMAND CRITICAL - DOUBLE - DEGREE - DEMOLITION - DETAIL - DEVELOPMENT/ DEVELOPER - DIAMETER - DIAGONAL/DIAGRAM - DIMENSION - DISTANCE - DOWN - DRAWING - DOWEL - EACH - EACH FACE - EXPANSION JOINT - ELEVATION - ELECTRICAL - ELEVATOR EMBEDMENT/EMBEDDED - EDGE OF SLAB - EQUAL - EQUALLY SPACED - EQUIPMENT - EACH SIDE - ESCALATOR - EACH WAY - EXPANSION - EXTERIOR REVISION BY FIN FLG FLR FO xxx FOC FOF FOS FP FRT FS FT FTG GA GALV GEN GLB GR GB GYP BD H HDR HGR HLDN HORIZ HSS HT HVAC ID IF IJ IL IN INFO INSUL INT JST JT KIP KSI KWY L LBR LLBB LLH LLV LOC LONG LSH LSV LT LT WT MAX MB MBR MECH MEZZ MFR MFR REC MH MID MIN MISC NA NIC NIP NORM NO NS NTS OC OD OF OFS OL OPH OPNG OPP OVS APPROVED DATE FINISH(ED) - FLANGE - FLOOR FACE OF xxx - FACE OF CONCRETE - FACE OF FINISH - FACE OF STEEL FIREPROOF(ING)/FIRE PROTECTION - FIRE RETARDANT TREATED FAR SIDE - FOOT, FEET - FOOTING GAGE/GAUGE - GALVANIZED GENERAL - GLUE LAMINATED TIMBER - GRADE GRADE BEAM - GYPSUM BOARD - HIGH HEADER - HANGER - HOLDDOWN - HORIZONTAL - HOLLOW STRUCTURAL SECTIONS - HEIGHT HEATING, VENTILATING AND AIR CONDITIONING NSIDE DIAMETER NSIDE FACE SOLATION JOINT NSIDE LAYER NCHES NFORMATION NSULATE/INSULATION NTERIOR JOIST JOINT 1,000 POUNDS - KIPS PER SQUARE INCH - KEYWAY - ANGLE/LENGTH - LUMBER - LONG LEG BACK TO BACK - LONG LEG HORIZONTAL - LONG LEG VERTICAL - LOCATION LONGITUDINAL - LONG SLOTTED HOLE /LONG SIDE HORIZONAL - LONG SIDE VERTICAL - LIGHT - LIGHTWEIGHT - MAXIMUM - MACHINE BOLT - MEMBER - MECHANICAL - MEZZANINE - MANUFACTURE(R/D) - MANUFACTURER'S RECOMMENDATIONS - MANHOLE - MIDDLE - MINIMUM - MISCELLANEOUS - NOT APPLICABLE - NOT IN CONTRACT - NOT IN PERMIT - NORMAL - NUMBER - NEAR SIDE - NOT TO SCALE - ON CENTER - OUTSIDE DIAMETER - OUTSIDE FACE - OUTSIDE FACE OF STUDS - OUTSIDE LAYER - OPPOSITE HAND - OPENING - OPPOSITE - OVERSIZED SYM REVISION PAF PAR PC PEN PIL PJP PL PLCS PNL PREFAB PSF PSI PT PUR R RC RD REF REINF REQD RO RTU SC SCHED SECT SEOR SLBB SLRS SHT SHTHG SIM SMS SPEC SPCS SQ SSH SST STD STI F STL STL JST STRUCT SYM M TB TBC TBR THK TO xxx TOC TOF TOGB TOS TOSL TOW TRANSV TRTD TYP T/C T&B T&G UON VIF VNR VERT W WD WF WHS WO WP WT WWF W/ W/0 YD - POWER ACTUATED FASTENER - PARALLEL/PARAPET - PRECAST CONCRETE - PENETRATE/PENETRATION - PILASTER - PARTIAL JOINT PENETRATION WELD - PLATE - PLACES - PANEL - PREFABRICATED - POUNDS PER SQUARE FOOT - POUNDS PER SQUARE INCH - POST TENSIONED/PRESSURE TREATED - PURLINS - RADIUS - REINFORCED CONCRETE ROOF DRAIN - REFERENCE - REINFORCING - REQUIRED - ROUGH OPENING - ROOFTOP UNIT - SLIP CRITICAL - SCHEDULE - SECTION - STRUCTURAL ENGINEER OF RECORD - SHORT LEG BACK TO BACK - SEISMIC LOAD RESISTING SYSTEM - SHEET - SHEATHING SIMILAR - SHEET METAL SCREW SPECIFICATION - SPACES - SQUARE - SHORT SLOTTED HOLE - STAINLESS STEEL - STANDARD - STIFFENER - STEEL - STEEL JOIST - STRUCTURAL - SYMMETRICAL - THROUGH BOLT - THREADED BAR COUPLER TO BE REMOVED - THICK(NESS) - TOP OF xxx - TOP OF CONCRETE - TOP OF FOOTING - TOP OF GRADE BEAM - TOP OF STEEL TOP OF SLAB - TOP OF WALL - TRANSVERSE - TREATED - TYPICAL - TENSION/COMPRESSION CORD - TOP AND BOTTOM - TONGUE AND GROOVE - UNLESS OTHERWISE NOTED - VERIFY IN FIELD - VENEER - VERTICAL - WIDE/WIDTH - WOOD - WIDE FLANGE - WELDED HEADED STUD/ SHEAR STUD CONNECTOR - WHERE OCCURS - WATERPROOFING/WORK POINT - WEIGHT - WELDED WIRE FABRIC - WITH - WITHOUT - YARD BY APPROVED DATE ORIG DEMOLITION OF BUILDING 09-150 W4640620 CEI EO 06.29.17 Q�BOE/NGS SPECIAL INSPECTION 1. SPECIAL INSPECTION BY A REGISTERED DEPUTY BUILDING INSPECTOR, IN CONTRACT WITH THE OWNER AND APPROVED BY THE ARCHITECT AND THE BUILDING OFFICIAL, SHALL BE REQUIRED FOR THE FOLLOWING TYPES OF WORK (SEE THE PROJECT SPECIFICATIONS FOR FURTHER REQUIREMENTS): ITEM SOIL EXCAVATION SOIL COMPACTION BUILDING CODE REFERENCE 1705.6 2. SPECIAL INSPECTIONS SHALL NOT BE REQUIRED WHEN THE WORK IS DONE ON THE PREMISES OF A FABRICATOR REGISTERED AND APPROVED BY THE BUILDING OFFICIAL TO PERFORM SUCH WORK WITHOUT SPECIAL INSPECTION. 3. ALL PREPARED SOIL -BEARING SURFACES SHALL BE INSPECTED BY THE SOILS ENGINEER PRIOR TO PLACEMENT OF REINFORCING STEEL. 4. SUMMARY REPORTS OF ALL INSPECTIONS AND TEST RESULTS SHALL BE DISTRIBUTED TO THE OWNER, ARCHITECT, STRUCTURAL ENGINEER, AND BUILDING OFFICIAL WITH DEFICIENCIES CLEARLY NOTED. 5. DEFICIENCIES SHALL BE REPORTED TO THE CONTRACTOR ON A DAILY BASIS. 6. DEFINITIONS OF SPECIAL INSPECTIONS AND TESTING FREQUENCY: "CONTINUOUS" -THE FULL-TIME OBSERVATION OF WORK REQUIRING SPECIAL INSPECTION BY AN APPROVED SPECIAL INSPECTOR WHO IS PRESENT IN THE AREA WHERE THE WORK IS BEING PERFORMED. "PERIODIC" -THE PART-TIME OR INTERMITTENT OBSERVATION OF WORK REQUIRING SPECIAL INSPECTION BY AN APPROVED SPECIAL INSPECTOR WHO IS PRESENT IN THE AREA WHERE THE WORK HAS BEEN OR IS BEING PERFORMED AND AT THE COMPLETION OF THE WORK. BUILDING CODE 1. ALL CONSTRUCTION, MATERIALS, AND WORKMANSHIP SHALL CONFORM TO THE REQUIREMENTS OF THESE DRAWINGS, SPECIFICATIONS, AND THE CODES, RULES AND REGULATIONS OF THE INTERNATIONAL BUILDING CODE (IBC), 2015 EDITION, AS ADOPTED AND AMENDED BY THE CITY OF TUKWILA, HEREINAFTER REFERRED TO AS THE BUILDING CODE. 2. WHERE NOTED IN THE STRUCTURAL NOTES, CONSTRUCTION, MATERIALS, AND WORKMANSHIP SHALL ALSO CONFORM TO THE FOLLOWING STANDARDS. WHERE THESE STANDARDS CONFLICT WITH THE BUILDING CODE, THE CODE SHALL GOVERN. GENERAL ASCE? "MINIMUM DESIGN LOADS FOR BUILDINGS AND OTHER STRUCTURES" AMERICAN SOCIETY OF CIVIL ENGINEERS ASCE/SEI 7 - 2010 EDITION OFFMAN NGINEERS 1601 Fifth Avenue, Suite 9001 Seattle, WA 98101 ph 206.623.0717 1 fax 206.624.3775 coffman.com LASTING creativity 1 results 1 relationships ACCEPTABI LITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE I DRAWN DATE 06.29.17 CHECKED E. OJALA 06.29.17 ft7 EXISTING CONSTRUCTION 1. EXISTING STRUCTURAL DIMENSIONS AND MEMBERS SIZES ARE FOR REFERENCE ONLY. CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN THE FIELD PRIOR TO FABRICATION. THE CONTRACTOR SHALL VERIFY THE ACTUAL CONFIGURATION OF EXISTING CONSTRUCTION AND THE CONDITION OF THE STRUCTURE BEFORE BEGINNING WORK. ANY DISCREPANCIES OR UNSOUND CONDITIONS SHALL BE REPORTED TO THE ARCHITECT FOR RESOLUTION BEFORE BEGINNING WORK. REFER TO ARCHITECTURAL, PLANS FOR DIMENSIONS, EMBEDMENTS AND OPENINGS NOT SHOWN. REFER TO MECHANICAL, PLUMBING AND ELECTRICAL PLANS FOR DUCTS, PIPING, EMBEDMENTS, AND OPENINGS NOT SHOWN. 2. TEMPORARY SHORING AND BRACING MAY BE NECESSARY IN ORDER TO PERFORM THE NECESSARY STRUCTURAL MODIFICATIONS TO THE EXISTING STRUCTURE SHOWN ON THE STRUCTURAL AND ARCHITECTURAL DRAWINGS. THE CONTRACTOR MUST SUBMIT PLANS AND SUPPORTING CALCULATIONS PREPARED BY A DESIGN PROFESSIONAL LICENSED TO PERFORM WORK IN THE PROJECT JURISDICTION. 3. WHERE NEW STRUCTURAL WORK IS BEING PERFORMED, THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS AS REQUIRED PRIOR TO CONSTRUCTION. ANY DISCREPANCIES SHALL BE REPORTED TO THE ARCHITECT FOR RESOLUTION PRIOR TO BEGINNING WORK. 4. EXISTING CONSTRUCTION, FRAMING MEMBERS AND DIMENSIONS HAVE BEEN ESTABLISHED BASED ON REVIEW OF THE AVAILABLE CONSTRUCTION DRAWINGS FOR THE ORIGINAL BUILDING. ONLY LIMITED FIELD VERIFICATION HAS BEEN PERFORMED. ANY DISCREPANCIES CONCERNING HOW NEW WORK RELATED TO THE AS -BUILT CONSTRUCTION SHALL BE REPORTED TO THE ARCHITECT/ENGINEER FOR RESOLUTION PRIOR TO BEGINNING WORK. 5. WHEN PROVIDED, DEMOLITION DRAWINGS INDICATE DEMOLITION EXTENT ASSOCIATED WITH THE ACTUAL SIZE OF THE NEW ELEMENT. THE EXTENT OF DEMO MAY NOT REFLECT ADDITIONAL DEMOLITION REQUIRED TO INSTALL NEW ELEMENTS. IN ADDITION TO WHAT IS SHOWN ON THE ARCHITECTURAL DEMOLITION DRAWINGS, MINOR LOCAL DEMOLITION OF EXISTING ELEMENTS MAY BE REQUIRED TO PERFORM THE STRUCTURAL WORK AS INDICATED ON THE PLANS, SECTIONS AND DETAILS. 6. CONTRACTOR SHALL REFER TO HAZARDOUS MATERIALS SURVEY REPORT BY NVL LABS, DATED MAY 23, 2017 FOR DETAILED INFORMATION REGARDING HAZARDOUS MATERIALS. DEMOLITION CONTRACTOR TO SUBMIT DEMOLITION PLAN TO EOR FOR REVIEW. 2. ALL DEMOLITION SHALL BE CARRIED ON IN SUCH A MANNER AS NOT TO DAMAGE EXISTING ELEMENTS WHICH ARE TO REMAIN A PART OF THE FINISHED STRUCTURE. EXISTING ELEMENTS SHALL BE PROTECTED TO THE FULLEST EXTENT POSSIBLE TO REDUCE SUCH DAMAGE TO A MINIMUM. 4. ALL ELEMENTS OF. THE STRUCTURE THAT ARE TO REMAIN AND WHICH ARE DAMAGED DURING DEMOLITION WORK SHALL BE REPLACED AT NO ADDED COST. 5. CONTRACTOR SHALL REFER TO HAZARDOUS MATERIALS SURVEY REPORT BY NVL LABS, DATED MAY 23, 2017 FOR DETAILED INFORMATION REGARDING HAZARDOUS MATERIALS. DESIGN CRITERIA FOUNDATION DESIGN CRITERIA REFERENCE THE FOLLOWING GEOTECHNICAL DESIGN REPORT: "FINAL GEOTECHNICAL RECOMMENDATIONS SUBMITTAL FOR BOEING 9-150 DEMOLITION OF BOEING BUILDING 9-150 PROJECT", DATED JUNE 2ND, 2017, AND PREPARED BY GOLDER ASSOCIATES. (14 3 ISSUED FOR PERMIT SUBTITLE STRUCTURAL NOTES & ABBREVIATIONS REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila BUILDING DIVISION RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER CURRENT REVISION SYMB°L0 I G W4640620 DATE 06.29.17 ENGINEER CHECKED APPROVED APPROVED TITLE STRUCTURAL MASTER DEMOLITION OF BUILDING 09-150 BUILDING 09-150 DEV. CENTER, WA SHEET S1 -DEM JOB NO. W4640620 COMP NO. DWG NO. 09 -150 -S1 -DEM SYM REVISION BY APPROVED DATE E F SYM FLOOR PLAN SCALE: 1/16" = 1'-0" REVISION BY APPROVED DATE ORIG DEMOLITION OF BUILDING 09-150 W4640620 CEI E0 05.02.17 8 U 13 14 X15 16 REMOVAL Q,�BOE/NG° ACOFR1ANNGIN EERS 1601 Fifth Avenue, Suite 900i Seattle, WA 98101 ph 206.623.0717 I fax 206.624.3775 coffman.com LASTING creativity 1 results relationships ACCEPTABI LITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRAWN CEI CHECKED E. OJALA DATE 05.02.17 05.02.17 6l7 LEGEND: GENERAL NOTES: 1. SEE DEMOLITION NOTES ON S1. 2. REFERENCE SOILS REPORT INDICATED ON S1 FOR GEOTECHNICAL REQUIREMENTS. REFERENCE DRAWINGS: 109-150-1000-3-1 - FOUNDATION PLAN & GENERAL NOTES 109-150-1000-S-2 - FOUNDATION DETAILS CONSTRUCTION NOTES: EXTRACT FULL LENGTH OF PILES. IF PILE FRACTURES DURING REMOVAL PROCESS, IT IS ACCEPTABLE TO LEAVE IT IN PLACE. SEE GEOTECHNICAL REPORT FOR ADDITIONAL REQUIREMENTS. REMOVE PILE CAPS. REMOVE GRADE BEAMS AND FOUNDATION WALLS. SEE SOILS REPORT INDICATED ON S1 FOR BACKFILLING REQUIREMENTS. 90% SUBMITTAL ISSUED FOR PERMIT SUBTITLE FOUNDATION PLAN - REMOVAL REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila BUILDING DIVISION RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER CURRENT REVISION SYMBOL DATE W4640620 0 R I G 05.02.17 ENCINEER CHECKED APPROVED APPROVED TITLE DEMOLITION OF BUILDING 09-150 BUILDING 09-150 STRUCTURAL MASTER COL. DEV. CENTER, WA SHEET S01 R -DEM JOB NO. DWG NO. W4640620 09-150-S01 R -DEM COMP NO. FLOOR PLAN SCALE: 1/16" = 1'-0" REMOVAL DEMOLITION OF BUILDING 09-150 W4640620 BY CEI APPROVED E0 DATE SYM REVISION BY APPROVED DATE 05.02.17 Q� BOE/NG' G�- *OFFPtIANGINEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.0717 I fax 206.624.3775 coffman.com LASTING creativity 1 results 1 relationships ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRAWN CEI CHECKED E. OJALA ENCINEER CHECKED DATE 05.02.17 05.02.17 /k 3 LEGEND: GENERAL NOTES: 1. SEE DEMOLITION NOTES ON S1. REFERENCE DRAWINGS: 109-150-1000-S-3 - FIRST FLOOR SLAB PLAN & DETAILS 109-150-1000-S-4 - BASE PLATE PLAN & DETAILS CONSTRUCTION NOTES: REMOVE SLAB ON GRADE. © REMOVE HOUSEKEEPING PADS. REMOVE THICKENED SLAB EDGE. 4 REMOVE COLUMNS AND BASE PLATES. 5. PROVIDE SHORING PLAN IF REQUIRED. 90%SUBMITTAL ISSUED FOR PERMIT SUBTITLE FIRST FLOOR SLAB PLAN - REMOVAL REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2017 City of Tukwila BUILDING DIVISION RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER CURRENT REVISION SYMBOL W4640620 ORI G DATE 05.02.17 APPROVED APPROVED TITLE STRUCTURAL MASTER DEMOLITION OF BUILDING 09-150 BUILDING 09-150 COL. DEV. CENTER, WA 1 S01 R -DEM JOB NO. W4640620 COMP NO. DWG NO. 09-150-1S01R-DEM LEGEND: GENERAL NOTES: 1. SEE DEMOLITION NOTES ON S1. REFERENCE DRAWINGS: 109-150-1000-S-5 - SECOND FLOOR FRAMING PLAN 109-150-1000-S-6 - SECOND FLOOR FRAMING PLAN CONSTRUCTION NOTES: �► REMOVE SECOND FLOOR FRAMING. REMOVE COLUMNS. REMOVE BRACES. 4 REMOVE CONCRETE ON METAL DECK. REMOVE STAIRS. REVIEWED FOR CODE COMPLIANCE APPROVED SEP 2 1 2017 SECO\D FLOOR FRA SCALE: 1/16" = 1'-0" vl\G PLA\ REMOVAL 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.0717 I fax 206.624.3775 coffman.com LASTING creativity I results I relationships SYM ORIG REVISION DEMOLITION OF BUILDING 09-150 BY APPROVED DATE SYM REVISION BY APPROVED DATE W4640620 CEI E0 05.02.17 ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DRAWN CEI CHECKED E. OJALA ENGINEER DATE 05.02.17 05.02.17 90% SUBMITTAL ISSUED FOR PERMIT RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER SUBTITLE SECOND FLOOR FRAMING PLAN - REMOVAL DATE TITLE DEMOLITION OF BUILDING 09-150 CURRENT REVISION SYMBOL DATE W4640620 0 R I G 05.02.17 SHEET CHECKED APPROVED BUILDING 09-150 2SOIR-DEM JOB NO. W4640620 COMP NO. M a w APPROVED STRUCTURAL MASTER COL. DEV. CENTER, WA DWG NO. 09-150-2S01 R -DEM SYM REVISION { e1 BY APPROVED DATE E SYM ROOF FRAM\G PLAN SCALE: 1/16" = 1'-0" REVISION BY APPROVED DATE ORIG DEMOLITION OF BUILDING 09-150 W4640620 CEI EO 05.02.17 REMOVAL ogi_m.Eizmreas OFFMAN NGINEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity I results I relationships ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRAWN CEI DATE 05.02.17 CHECKED E. OJALA ENGINEER CHECKED 05.02.17 LEGEND: GENERAL NOTES: 1. SEE DEMOLITION NOTES ON S1. REFERENCE DRAWINGS: 109-150-1000—S-7 — PARTIAL ROOF FRAMING PLAN 109-150-1000—S-8 — ROOF FRAMING PLAN 109-150-1000—S-9 — PARTIAL ROOF OPENINGS FRAMING PLAN CONSTRUCTION NOTES: �- REMOVE TRUSSES AND ROOF FRAMING. © REMOVE ROOF DECK. br7r. 0143 90% SUBMITTAL ISSUED FOR PERMIT SUBTITLE ROOF FRAMING PLAN REMOVAL REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2011 City of Tukwila BUILDING DIVISION RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER CURRENT REVISION SYMBOL() O G DATE 05.02.17 APPROVED APPROVED TITLE DEMOLITION OF BUILDING 09-150 BUILDING 09-150 STRUCTURAL MASTER COL. DEV. CENTER, WA SHEET RFSI 60R -DEM .JOB NO. W4640620 COMP NO. DWG NO. 09-150—RFS160R—DEM 1 E SYM ROOF FRAM\G PLAN SCALE: 1/16" = 1'-0" REVISION BY APPROVED DATE ORIG DEMOLITION OF BUILDING 09-150 W4640620 CEI EO 05.02.17 REMOVAL ogi_m.Eizmreas OFFMAN NGINEERS 1601 Fifth Avenue, Suite 900 1 Seattle, WA 98101 ph 206.623.07171 fax 206.624.3775 coffman.com LASTING creativity I results I relationships ACCEPTABILITY THIS DESIGN AND/OR SPECIFICATION IS APPROVED APPROVED BY DEPT. DATE DRAWN CEI DATE 05.02.17 CHECKED E. OJALA ENGINEER CHECKED 05.02.17 LEGEND: GENERAL NOTES: 1. SEE DEMOLITION NOTES ON S1. REFERENCE DRAWINGS: 109-150-1000—S-7 — PARTIAL ROOF FRAMING PLAN 109-150-1000—S-8 — ROOF FRAMING PLAN 109-150-1000—S-9 — PARTIAL ROOF OPENINGS FRAMING PLAN CONSTRUCTION NOTES: �- REMOVE TRUSSES AND ROOF FRAMING. © REMOVE ROOF DECK. br7r. 0143 90% SUBMITTAL ISSUED FOR PERMIT SUBTITLE ROOF FRAMING PLAN REMOVAL REVIEWED FOR CODE COMPLIANCE APPROVED SEP 21 2011 City of Tukwila BUILDING DIVISION RECEIVED CITY OF TUKWILA SEP 0 8 2017 PERMIT CENTER CURRENT REVISION SYMBOL() O G DATE 05.02.17 APPROVED APPROVED TITLE DEMOLITION OF BUILDING 09-150 BUILDING 09-150 STRUCTURAL MASTER COL. DEV. CENTER, WA SHEET RFSI 60R -DEM .JOB NO. W4640620 COMP NO. DWG NO. 09-150—RFS160R—DEM