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Permit D19-0311 - STAR FORGE - BUILDING DEMOLITION
STAR FORGE, LLC 8531 E MARGINAL WAY S FINALED 04/10/24 D19-0311 Parcel No: Address: City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Phone: 206-431-3670 Inspection Scheduling: https://tukw-egov.aspgov.com/BP/index.html Web site: http://www.TukwilaWA.gov DEVELOPMENT PERMIT 0001600023 Permit Number: D19-0311 8531 E MARGINAL WAY S Project Name: STAR FORGE, LLC Issue Date: 8/8/2023 Permit Expires On: 2/4/2024 Owner: Name: Address: Contact Person: Name: Address: Contractor: Name: Address: License No: Lender: Name: Address: STAR FORGE LLC 8531 E MARGINAL WAY S, TUKWILA, WA, 98108 WAYNE TURK 8531 E MARGINAL WAYS, TUKWILA, WA, 98108 Phone: (206) 762-1100 CONST GRP INTERNATIONAL LLC Phone: (425) 487-2618 19407 144TH AVE NE BLDG D, WOODINVILLE, WA, 98072 CONSTGI953NA Expiration Date: 8/10/2025 STAR FORGE, LLC 8531 E MARGINAL WAY S TUKWILA WA 98108 DESCRIPTION OF WORK: DEMOLITION OF SITE BUILDINGS. PUBLIC WORKS ACTIVITIES INCLUDE: EROSION CONTROL, LAND ALTERING, AND UTILITIES CAPPING. Project Valuation: $5,359,170.00 Type of Fire Protection: Sprinklers: Fire Alarm: Type of Construction: Electrical Service Provided by: Tukwila Fees Collected: $52,003.87 Occupancy per IBC: Water District: Tukwila Sewer District: Tukwila Fees Collected: Electrical Service Provided by: Water District: Sewer District: Current Codes adopted by the City of Tukwila: International Fire Code Edition: International Building Code Edition: International Residential Code Edition: International Mechanical Code Edition: Uniform Plumbing Code Edition: International Fuel Gas Code: 2018 2018 2018 2018 2018 2018 National Electrical Code: WA Cities Electrical Code: WAC 296-46B: WA State Energy Code: 2020 2020 2020 2018 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: Volumes: Cut: 0 Fill: 20600 Number: 0 No 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 local laws regulating construction or the performance of work. 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: ***PUBLIC WORKS PERMIT CONDITIONS*** 2: Call to schedule mandatory pre -construction meeting with the Public Works Inspector, (206) 438-9350. 3: The applicant or contractor must notify the Public Works Inspector at (206) 438-9350 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. 4: 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. 5: Permit is valid between the weekday hours of 7:00 a.m. and 10:00 p.m. only. Coordinate with the Public Works Inspector for any work after 5:00 p.m. and weekends. 6: No work under this permit during weekend hours without prior approval by Public Works. Coordinate with the Public Works Inspector. 7: 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. 8: 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. 9: Any material spilled onto any street shall be cleaned up immediately. 10: Temporary erosion control measures shall be implemented as the first order of business to prevent sedimentation off -site or into existing drainage facilities per Appendix D of the 2021 King County Surface Water Design Manual. 11: 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. 12: The Land Altering Permit Fee is based upon an estimated no cubic yards of cut and 20,600 cubic yards of fill. If the final quantity exceeds this amount, the developer shall be required to recalculate the final quantity and pay the difference in permit fee prior to the Final Inspection. 13: 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. 14: 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. 15: Coordinate utilities capping with the City of Tukwila Public Works Inspector. 16: ***BUILDING PERMIT CONDITIONS*** 17: 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. 18: Subgrade preparation including drainage, excavation, compaction, and fill requirements shall conform strictly with the recommendations given in the soils report. Special inspection is required. 19: 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. 20: All plumbing and gas piping work shall be inspected and approved under a separate permit issued by the City of Tukwila Building Department (206-431-3670). 21: All electrical work shall be inspected and approved under a separate permit issued by the City of Tukwila Permit Center. 22: 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. 25: D19-0311 DEMOLITION FIRE CONDITIONS: • During site demolition under permit D19-0311, all ABOVE/UNDERGROUND tanks on the property will require a FIRE - TANK REMOVAL permit. Mitigation of tanks require approved Fire permits and pass inspection by the Tukwila Fire Marshal's Office. • Building demolition, hazardous materials mitigation, and tank removal to comply with all applicable codes in the 2018 Washington State Fire Code and NFPA. • A FIRE - HOT WORKS permit is required for demolition. • A 20' wide Fire Access road must be maintained to all buildings during demolition. • Maintain Fire Hydrant coverage during demolition. • Maintain 24-hour Fire Watch on -site until buildings are demolished. 23: FIRE PERMIT RECQ-TANK 24: TANK REMOVAL PERMIT REQUIRED FOR 18 TANKS. 26: Any material spilled onto any street shall be cleaned up immediately. 27: 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. 28: Clean and remove debris from City catch basin in and around hauling routes. Provide adequate temporary access as not to interfere with other vehicle movement or cause trucks to travel over curbs. All vehicles must make a complete stop prior to entering public right-of-way. 29: 35K tons of imported fill may trigger a Public Works hauling permit. 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. Please contact city of Tukwila Permit Center for additional details (206) 431-3670 or Permits@TukwilaWa.gov A permit from Puget Sound Air Pollution Agency (PSAPCA) shall be required for demolition. Confirm permit has been applied for. Prior to obtaining final demolition approval, the site shall be stabilized, the structural TESC measures (such as silt fences, catch basin inserts, and construction entrances) removed, and existing drainage facilities cleaned. If the stormwater system will be left active, the applicant shall provide an engineering inspection/assessment/evaluation that the system is working properly and submit to the Project Inspector for review before project closeout. Any offsite catch basin that required protection during construction (Section D.2.1.5.3 of the KCSWDM) shall also be cleaned. Sewer and water utilities shall be plugged at the mains if they are to be abandoned, this will require a right- of-way permit. If they will be used again in the future for a new building/tenant, they shall be capped at the property line and at the water meter(s) respectively. 30: Per TMC 18.50.110, prior to the start of construction a cultural resources assessment shall be conducted and, if warranted, an archaeological response plan and provisions for excavation monitoring by a professional archaeologist shall be made. The assessment should address the existence and significance of archaeological remains, buildings and structures on the State or Federal historic registers, observable paleontological deposits and may include review by the State Archaeologist. Excavations into historically native soil, when in an area of archaeological potential, shall have a professiona archaeologist on site to ensure that all State statutes regarding archaeological conservation/ preservation are implemented. The applicant shall provide a written commitment to stop work immediately upon discovery of archaeological remains and to consult with the State Office of Archaeology and Historic Preservation (OAHP) to assess the remains and develop appropriate treatment measures. These may include refilling the excavation with no further responsibility. PERMIT INSPECTIONS REQUIRED Permit Inspection Scheduling: https://tukw-egov.aspgov.com/BP/index.html 1700 BUILDING FINAL** 5200 EROSION MEASURES 5210 EROSION MEASURES FNL FIRE D PERMIT FINAL 5040 LAND ALTERING 5230 PAVING AND RESTORE 0101 PRE -CONSTRUCTION BLDG 1600 PUBLIC WORKS FINAL 5160 PUBLIC WORKS PRE -CON 5070 SANITARY SIDE SEWER 5090 STORM DRAINAGE TANK REMOVAL FINAL 5130 WATER METER - PERM CITY OF TUKWILA Community Development Department Public Works Department Permit Center 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 http://www.TukwilaWA.gov Building Permit No. Project No. Date Application Accepted: Date Application Expires: 01-03 /I 3 (S-DO (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. **Please Print** SITE INFORMATION Site Address: 8531 East Marginal Way South Tukwila, WA Tenant Name: Star Forge, LLC King Co Assessor's Tax No.: 0001600023 Suite Number: Floor: New Tenant: ❑ . Yes ..No PROPERTY OWNER Name: Star Forge, LLC Address: 8531 East Marginal Way South City: Tukwila State: WA Zip: 98108 CONTACT PERSON — person receiving all project communication Name: Wayne Turk Address: 8531 East Marginal Way South City: Tukwila State: WA Zip: 98108 Phone: 206-762-1100 Email: wturk@jorgensenforge.com jorgensenforge.com DESIGN PROFESSIONAL IN RESPONSIBLE CHARGE Name: Not applicable Address: City: State: WA Zip: Phone: Email: GENERAL CONTRACTOR INFORMATION Company Name: Construction Group International, LLC Address: 19407 144th Avenue Northeast, Building D City: Woodinville State: WA Zip: 98072 Phone: 425-487-2618 St Contr Reg No.: CONSTGI953NA Exp Date: 8/10/21 Tukwila Business License No.: TBD ARCHITECT OF RECORD Company Name: Not applicable Address: City: State: Zip: Phone: Email: ENGINEER OF RECORD Company Name: TBD Address: City: State: Zip: Phone: Email: LENDER — WHO IS FUNDING THE PROJECT (required for projects $5,000 or greater per RCW 19.27.095) Name: Star Forge, LLC (Property Owner) Address: 8531 East Marginal Way South City: Tukwila State: WA Zip: 98108 MONTHLY SERVICE BILLING -or- WATER METER REFUNDBILLING Name: Not applicable Address: City: State: Zip: Phone: W:\Permit Center (Rachelle)\Applications\Word \Construction Permit Application Revised 6-2019.docx Revised: June 2019 Page 1 of 3 BUILDING DIVISION INFORMATION — 206-431-3670 Valuation of Project (contractor's bid price): $ 5,359,170.00 Existing Building Valuation: $ 7,298,200 (2019, King County appraised improvements value) Describe the scope of work (please provide detailed information): Demolition of site buildings as shown on Figure 2. 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 Existing Interior Remodel Addition to Existing Structure New Type of Construction per IBC Type of Occupancy per IBC 1st Floor See attached 2nd Floor summary 3rd Floor Floors thru Basement Accessory Structure* Garage ■ Attached 0 Detached Carport • Attached ■ Detached Covered Deck Uncovered Deck PLANNING DIVISION INFORMATION — 206-431-3670 Single family building footprint (area of the foundation of all structures, plus any decks over 18 inches and overhangs greater than 18 inches) N/A *For an Accessory dwelling, provide the following: Lot Area (sq ft): 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. Floor area of principal dwelling: Number of Parking Stalls Provided: Standard: Will there be a change in use? 0 Yes Compact: Handicap: © No If "yes", explain: FIRE PROTECTION/HAZARDOUS MATERIALS — 206-575-4407 ❑X 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 X❑ 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. PUBLIC WORKS INFORMATION — 206-433-0179 ❑ ...Permanent Water Meter Size (1) . WO # (2) WO # (3) WO # ❑ ...Temporary Water Meter Size (1). " WO # (2) " WO # (3) WO # ❑ ...Water Only Meter Size WO # ❑ ...Sewer Main Extension Public ❑ Private ❑ ❑ Deduct Water Meter Size ❑...Water Main Extension Publiic ❑ Private ❑ PW08-180 Backflow installations / PW11-002 Plugging & sealing 24" SD MH @Public MH / PW12-127 SD conveyance modifications/ PW15-154 Replacing 2 leaking fire hydrants #2 & #8 / PW17-0033 Excavation of 1400 CY of potentially contaminated materials to a max depth of 12-30 feet / PW12-127 NPDES Stormwater Improvement W:\Petmit Center (Rachelle)Wpplications\Word \Construction Permit Application Revised 6-2019.docx Revised: June 2019 Page 2 of 3 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 1 HAVE READ AND EXAMINED THIS APPLICATION AND KNOW THE SAME TO BE TRUE UNDER PENALTY OF PERJURY BY THE LAWS OF THE STATE OF WASHINGTON, AND 1 AM AUTHORIZED TO APPLY FOR THIS PERMIT. BUILDING OWNER QR AUTHORIZ D AGE (� Signature: Date: / Z /74- Print Name: Wayne Turk Day Telephone: 206-762-1100 Mailing Address: 8531 East Marginal Way South Tukwila City WA 98108 State Zip W:\Permit Center (Rachelle)\Applications\Word \Construction Permit Application Revised 6-2019.docx Revised: June 2019 Page 3 of 3 Building Areas in Square Footage Building Gross Square ID Feetl A 830 624 8,184 72,708 E and F 150,578 2,480 11,831 6,042 J 29,264 K 10,308 L 10,966 1,728 0 886 p2 2,911 Q2 3,216 R2 827 RECEIVED OCT 03 2019 TUKWILA PUBLIC WORKS RECEIVED CITY OF TUKWILA SEP 2 5 2019 PERMIT CENTER 1 Square foot measurements collected during SoundEarth Strategies Hazardous Building Materials Survey in July 2019. 2Square foot measurements obtained from Commercial Due Diligence Services ALTA/Land Title Survey sheets completed in November 2016. D1i-030 BULLETIN A2 TYPE C PERMIT FEE ESTIMATE PLAN REVIEW AND APPROVAL FEES DUE WITH APPLICATION PW may adjust estimated fees PROJECT NAME Star Forge, LLC PERMIT # D19-0311 853i I a ��1 W .. 5.If you do not pro(te ide contractor bias 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 category: Mobilization $0.00 Erosion prevention $11,500.00 Water/Sewer/Surface Water $10,000.00 Road/Parking/Access $0.00 A. Total Improvements 3. Calculate improvement -based fees: B. 2.5% of first $100,000 of A. $537.50 C. 2.0% of amount over $100,000, but less than $200,000 of A. $0.00 D. 1.5% of amount over $200,000 of A. 4. TOTAL PLAN REVIEW FEE (B+C+D) $ 537.50 (4) $21,500.00 $250 (1) $0.00 5. Enter total excavation volume cubic yards Enter total fill volume 20,600 cubic yards Use the following table to estimate the grading plan review fee. Use the reater of the excavation and fill volumes. QUANTITY IN CUBIC YARDS RATE Up to 50 CY Free 51 —100 $23.50 101 —1,000 $37.00 1,001 — 10,000 $49.25 .410,001 —100,000 ./ $49.25 for 1ST 10,000, PLUS $24.50 for each additional 10,000 or fraction thereof. 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 TOTAL PLAN REVIEW FEE DUE WITH PERMIT APPLICATION (1+4+5) $ 98.25 (5) 885.75 The Plan Review and Approval fees cover TWO reviews: 1) 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 01.01.19 1 RECEIVED CITY OF TUKWILA OCT 2 8 2019 PERMIT CENTER BULLETIN A2 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 ( 537.50 (6) 0.00 (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%) $1.0.00 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 the greater of the excavation and fill volumes from Item 5. J 457.00 (8) QUANTITY IN CUBIC YARDS RATE 50 or less $23.50 51 —100 $37.00 101 —1,000 $37.00 for 1 St 100 CY plus $17.50 for each additional 100 or fraction thereof. 1,001 —10,000 $194.50 for 1 St 1000 CY plus $14.50 for each additional 1,000 or fraction thereof. 10,001 — 100,000 `/ $325.00 for the 1 St 10,000 CY plus $66.00 for each additional 10,000 or fraction thereof 100,001 or more $919.00 for Pt 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 01.01.19 2 49.73 (9) BULLETIN A2 TYPE C PERMIT FEE ESTIMATE PLAN REVIEW AND APPROVAL FEES DUE WITH APPLICATION PW may adjust estimated fees 10. TOTAL OTHER PERMITS A. Water Meter — Deduct ($25) B. Flood Control Zone ($52.50 — includes Technology Fee) C. Water Meter — Permanent* D. Water Meter — Water only* E. Water Meter — Temporary* * Refer to the Water Meter Fees in Bulletin Al Total A through E $ 0.00 (9) 11. ADDITIONAL FEES A. Allentown Water (Ordinance 1777) $ B. Allentown Sewer (Ordinance 1777) $ C. Ryan Hill Water (Ordinance 1777) $ D. Allentown/Foster Pt Water (Ord 2177) $ E. Allentown/Foster Pt Sewer (Ord 2177) $ F. Special Connection (TMC Title 14) $ G. Duwamish $ H. Transportation Mitigation $ I. Other Fees $ Total A through I $ DUE WHEN PERMIT IS ISSUED (6+7+8+9+10+11) $ 0.00 (10) 1,044.23 ESTIMATED TOTAL PERMIT ISSUANCE AND INSPECTION FEE This fee includes two inspection visits per required inspection. Additional inspections (visits) attributable to the Permittee's action or inaction shall be charged $70.00 per inspection. WATER METER FEE Permanent and Water Only Meters Size (inches) Installation Cascade Water Alliance RCFC 01.01.2019— 12.31.2019 ,,,,-- Total Fee 0.75 $625 \ $6,416 % $7,041 1 $1 l 25 116,946 $17,165 1.5 $2425 ,080 $34,505 2 $2825 �51,28 $54,153 3 $4425 $102,65b\ $107.,081 4 $7825 / $160,400 $176,050 6 $12525 / $320,800 $333,325 Approved 09.25.02 Last Revised 01.01.19 ( Temporary Meter 0.75" $300 2.5" $1,500 RECEIVED CITY OF TUKWILA3 OCT 2 8 2019 PERMIT CENTER Clear Form Cash Register Receipt City of Tukwila DESCRIPTIONS ACCOUNT QUANTITY PermitTRAK PAID $1,929.98 D19-0311 Address: 8531 E MARGINAL WAYS Apn: 0001600023 $1,929.98 DEVELOPMENT $1,075.00 PW PERMIT ISSUANCE/INSPECTION FEE R000.342.400.00.00 0.00 $537.50 PW CONSTRUCTION PLAN REVIEW R000.345.830.00.00 0.00 $537.50 PUBLIC WORKS $805.25 BASE APPLICATION FEE R000.322.100.00.00 0.00 $250.00 GRADING PLAN REVIEW R000.345.830.00.00 0.00 $98.25 GRADING PERMIT ISSUANCE R000.342.400.00.00 0.00 $457.00 TECHNOLOGY FEE $49.73 TECHNOLOGY FEE TOTAL FEES PAID BY RECEIPT: R19212 R000.322.900.04.00 0.00 $49.73 $1,929.98 Date Paid: Wednesday, December 04, 2019 Paid By: JORGENSEN FORGE Pay Method: CHECK 74168 Printed: Wednesday, December 04, 2019 12:22 1 of 1 PM SYSTEMS Receipt Number R18677 DESCRIPTIONS ( ACCOUNT I QUANTITY PermitTRAK PAID $50,073.89 D19-0311 Address: 8531 E MARGINAL WAY S Apn: 0001600023 $50,073.89 DEVELOPMENT $48,601.86 PERMIT FEE R000.322.100.00.00 0.00 $29,440.52 PLAN CHECK FEE R000.345.830.00.00 0.00 $19,136.34 WASHINGTON STATE SURCHARGE B640.237.114 0.00 $25.00 TECHNOLOGY FEE $1,472.03 TECHNOLOGY FEE TOTAL FEES PAID BY RECEIPT: R18677 R000.322.900.04.00 0.00 $1,472.03 $50,073.89 Date Paid: Wednesday, September 25, 2019 Paid By: JORGENSEN FORGE Pay Method: CHECK 074059 Printed: Wednesday, September 25, 2019 3:12 1 of 1 PM SYSTEMS Permit Number: D19-0311 Applied: 9/25/2019 Approved: 8/8/2023 Issued: 8/8/2023 Finaled: 4/10/2024 Status: FINALED Parent Permit: Parent Project: Description: STAR FORGE, LLC Site Address: 8531 E MARGINAL WAY S City, State Zip Code: TUKWILA, WA 98108 Applicant: STAR FORGE, LLC Owner: STAR FORGE LLC Contractor: CONST GRP INTERNATIONAL LLC Details: DEMOLITION OF SITE BUILDINGS. PUBLIC WORKS ACTIVITIES INCLUDE: EROSION CONTROL, LAND ALTERING, AND UTILITIES CAPPING. LIST OF INSPECTIONS SCHEDULED DATE COMPLETED DATE TYPE INSPECTOR RESULT REMARKS 8/2/2023 8/2/2023 PUBLIC WORKS PRE -CON Eric Pritchard APPROVED Notes: Permit covered under DOE Industrial Stormwater Permit. Confirm at PreCon - 35K tons of imported fill may trigger a Public Works hauling permit. 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. Please contact city of Tukwila Permit Center for additional details (206) 431-3670 or Permits@TukwilaWa.gov A permit from Puget Sound Air Pollution Agency (PSAPCA) shall be required for demolition. Confirm permit has been applied for. Prior to obtaining final demolition approval, the site shall be stabilized, the structural TESC measures (such as silt fences, catch basin inserts, and construction entrances) removed, and existing drainage facilities cleaned. If the stormwater system will be left active, the applicant shall provide an engineering inspection/assessment/evaluation that the system is working properly and submit to the Project Inspector for review before project closeout. Any offsite catch basin that required protection during construction (Section D.2.1.5.3 of the KCSWDM) shall also be cleaned. Sewer and water utilities shall be plugged at the mains if they are to be abandoned, this will require a right-of-way permit. If they will be used again in the future for a new building/tenant, they shall be capped at the property line and at the water meter(s) respectively. Pre -construction meeting was conducted on site. OK to issue permit. 3/25/2024 3/25/2024 STREET USE Scott Moore PARTIAL APPROVAL Notes: Contractor coordinated the Watermain caps on East marginal excavated, vault, and capped water department was there for inspection on the cap and plugs. 3/26/2024 3/26/2024 STREET USE Scott Moore PARTIAL APPROVAL Notes: Contractor is still working on getting the service line and meter area, plugged and capped they will pave the vault on his marginal sometime this afternoon. Compaction test were ran on the subgrade and passed.. North connection has been plugged and capped, and pavement restoration was completed this afternoon. Middle connection is confusing, and requires further exploratory digging to determine proper cut/cap location. South connection has been cut, plugged and capped. OK to backfill. Printed: Thursday, 07 November, 2024 1 of 3 rA SUPERION 3/28/2024 3/28/2024 BUILDING FINAL** Bill Centen NOT APPROVED 206-941-3876 Notes: Not ready at this time 1. Pending Public Works Final 2. Pending Tank removal finals 3. Pending Fire D Final 3/28/2024 3/28/2024 SANITARY SIDE SEWER Eric Pritchard APPROVED Notes: As-builts to include sewer force main from treatment tanks; any and all remaining side sewer pipes. See attached Stormwater Treatment System Conveyance Plan, which shows treated surface water being discharged to the existing private sewer MH at the NE corner of the property, and also specifies that the sewer lines have been capped at the manhole. 3/28/2024 3/28/2024 WATER METER PERM Eric Pritchard APPROVED Notes: Sewer and water utilities shall be plugged at the mains if they are to be abandoned, this will require a right-of-way permit. If they will be used again in the future for a new building/tenant, they shall be capped at the property line and at the water meter(s) respectively. Water lines have been cut, capped and plugged per Tukwila Water Department instructions. Sewer lines have been capped at the private manhole, NE corner of property. Sewer manhole is still in use, as the DOE -permitted stormwater treatment and conveyance system is discharging into that manhole. 3/28/2024 3/28/2024 PAVING AND RESTORE Eric Pritchard NOT APPROVED Notes: Need compaction test reports for CSTC and HMA prior to approval. 3/28/2024 3/28/2024 PUBLIC WORKS FINAL Eric Pritchard NOT APPROVED Notes: Fire Marshall's Tank Removal inspection needs to be approved prior to final approval. See Side Sewer, Pavement Restoration and Storm Drainage notes for other requirements prior to final. Not approved, pending compaction test reports from Kruzan, 03/26/24, for CSTC and HMA in ROW restoration patch. Fire, Storm and Side Sewer documentation is approved. 3/28/2024 3/28/2024 EROSION MEASURES Eric Pritchard APPROVED Notes: Permit covered under DOE Industrial Stormwater Permit. Temporary erosion control measures have been removed, as they are no longer needed. 3/28/2024 3/28/2024 EROSION MEASURES FNL Eric Pritchard APPROVED Notes: Final erosion control measures are in place. Approved. 3/28/2024 3/28/2024 I LAND ALTERING Eric Pritchard I APPROVED I Notes: Import of fill and HMA materials is complete. Printed: Thursday, 07 November, 2024 2 of 3 i1 SUPERION 3/28/2024 3/28/2024 STORM DRAINAGE Eric Pritchard APPROVED Notes: Prior to obtaining final demolition approval, the site shall be stabilized, the structural TESC measures (such as silt fences, catch basin inserts, and construction entrances) removed, and existing drainage facilities cleaned. If the stormwater system will be left active, the applicant shall provide an engineering inspection/assessment/evaluation that the system is working properly and submit to the Project Inspector for review before project closeout. Any offsite catch basin that required protection during construction (Section D.2.1.5.3 of the KCSWDM) shall also be cleaned. All temporary catch basin filter inserts have been removed and CBs and storm pipes have been jetted and vacuumed clean. See attached Stormwater Conveyance System Letter from DH Enviormental. 3/28/2024 3/28/2024 STREET USE Scott Moore APPROVED Notes: Work within the Right -of -Way is complete. 4/10/2024 4/10/2024 BUILDING FINAL** Building Inspector APPROVED 206-941-3876 Notes: OK to final per Bill Centen 4/10/2024 4/10/2024 PAVING AND RESTORE Scott Moore APPROVED Notes: ok to final 4/10/2024 4/10/2024 PUBLIC WORKS FINAL Scott Moore APPROVED Notes: ok to final Printed: Thursday, 07 November, 2024 3 of 3 SUPER ION 019 PIT-MAP.D allimmummmimmmms No,onanges snall De made to the scope of worK without prior approval Ot the Tukwila Building Division. NOTE: Revisions will require a new dam suomattal and may Include additional plan review. l- s SEPARA: E PE.i':h`Ii i R!"-- UIRED FOR: Mechanical I 1 Eiecti icai Plumbing [� Gas Piping City of Tukwila BUILDING DIVISION LOWER DUWAMISH WATERWAY OUTFALL DISCHARGE LOCATION ♦ FILE COP - 1W' Pamlt Na Plan review approval is subject to errors ano or#Issions. Approval of construction aocuments does 4 authorize the violation of any adopted code o ainance Receipt of approved Field Copy anc conditions is acknowledges: 0 z 0 P:\0995JORGENSENFORGECORP By. Date: City of TuKwiia BUILDING DIVISION' •00A WA 1^ F \.4SH/ti �O tn DELIVERED MATERIAL STORAGE AREA 00 § O TRUCK SCALE EMPLOYEE PARKING AREA PARKING AREA 29 0 0 0 - MELT STEEL SLAG AND MILL SCALE STORAGE AREA SCRAP AND MAGNETIC SCRAP STORAGE BILLET AND GRINDING STORAGE AREA 75 OFFICE HEADQUARTERS AND BASEMENT _'•-65 66 _ 52 zt ❑ zo RECEIVED CITY OF TUKWILA OCT 2 8 2019 PERMIT CENTER 15 LEGEND ODE COMPLIANCE APPROVED AUG 0 8 2C23 e • e ♦ FINISHED MATERIAL STORAGE AREA PROPERTY BOUNDARY BUILDING OUTLINE GRAVEL SURFACE 7g PIT MAP # PIT AREA 0 30 66 120 APPROXIMATE SCALE IN FEET e ., No G...‘ y e SoundEart Strategies W W W.SOUNDEARTHINC.COM JORGENSON FORGE FACILITY 8531 EAST MARGINAL WAY SOUTH TUKWILA, WASHINGTON SOUNDEARTH PROJECT #0995-002 FIGURE 4 PIT MAP PARCEL# 0001600023 17(9- 05( cD EVIECHNICAC.CAD`2019`0995-002-10 2019 CGLD JORGENSEN FOE. z 0 \0995 JORGENSEN FORGE CORPO e • LOWER DUWAMISH WATERWAY ► OUTFACE e DISCHARGE ► LOCATION ly t STORAGE ✓� BUILDING BUILDING Al (DIESEL FUELING AND USED OIL STORAGE BUILDING) ♦ ♦ MELT BAGHOUSE • ♦ /0-.2t i_O I I • ♦ BUILDING 0J (MELT BAGHOUSE CONTROL ROOM) BUILDING BI (TBOIL STORAGE SHED) [BUILDING C[ TRUCK SCALE DELIVERED EMPLOYEE MATERIAL PARKING STORAGE AREA AREA p0 8 0 [BUILDING G (LABORATORY) [BUILDING HH\ [BUILDING NI—\ MAINTENANCE OFFICE BUILDING KI (OFFICE HEADQUARTERS) AUG (.3('),) 22 City of Tukwij ► 'ILD NG [ BUILDING J 1 \ {BUILDING 1 ♦ ���BUILDING MI (MELT SHOP WAREHOUSE) I BUILDING Flj (MELT SHOP AREA) MELT STEEL SLAG SCRAP AND BILLET AND AND MILL SCALE MAGNETIC GRINDING STORAGE AREA SCRAP STORAGE STORAGE AREA BUILDING E1—Ni EIV REPD e yam.. i.r t...� r' (,.TV OF TUKWILA\ OCT 2 8 2019 PERMIT CENTER LEGEND NO -fir r t• • l4w reeti 111111I PROPERTY BOUNDARY BUILDING OUTLINE GRAVEL SURFACE PARKING TOILETS DISPOSAL TESC (HAY BALES/WEIRS) ♦ BUILDING LI (ALUMINUM HEAT \ TREAT BUILDING) \ 2 FINISHED MATERIAL ♦♦ �_ STORAGE AREA NOTE: ADAPTED FROM CONSTRUCTION GROUP INTERNATIONAL, LLC (CGI) LOGISTICS AND PHASING PLAN 0 30 60 120 APPROXIMATE SCALE IN FEET PHASE 1 PHASE 2 PHASE 3 PHASE 4 PHASE 5 SoundEartPr) Strategies W W W.SOUN DEARTH I NC. COM JORGENSON FORGE FACILITY 8531 EAST MARGINAL WAY SOUTH TUKWILA, WASHINGTON SOUNDEARTH PROJECT #0995-002 FIGURE 5A CGI LOGISTICS AND PHASING PLAN PARCEL# 0001600023 i)(9 n9,(� Former Jorgensen Forge Facility Demolition Work Plan Revision 02 Prepared for: Star Forge LLC 8531 East Marginal Way South Tukwila, Washington 98108 Prepared by: 1110/H5 Environmental P 1011 SW Klickitat Way, Suite 107 Seattle, WA 98134 WA State Engineering Corp. 3455 And REVIEWED FOR CODE COMPLIANCE APPROVED AUG 08 2023 City of Tukwila BUILDING DIVISION construction group international 19407 144th Ave NE Bldg D Woodinville, WA 98072 WA State Contractor # CONSTGI953NA 12 February 2021 CORRECTION LTR# 1 t FiEecAVEU CITY OF TUKWILp A.FR 14 Li 2i PERMIT CENTER Di o3 1 Table of Contents Introduction 1 1.1 Project Overview 1 1.1.1 Site Description 1 1.1.2 Project Management Team 2 1.1.3 Regulatory Background 2 2 Demolition Scope and Operations 6 2.1 Pre -Demolition Site Preparation 6 2.2 Filling of Pits, Vaults and Voids 8 2.3 Paving 8 2.4 Protection of DWMUs During Demolition 8 2.5 Cultural Resources Inadvertent Discovery Plan 8 2.6 Utility Protection 9 2.7 Post Demolition Site Restoration 9 2.8 Equipment 9 3 Hazardous Building Materials 12 3.1 Work Completed 12 3.2 Work to Be Completed Concurrently with Demolition 12 3.3 Universal Waste Removal and Disposal/Recycling 12 4 TSCA Transformer Spill Performance Based Cleanup and Disposal 13 5 Environmental Controls and Monitoring 14 5.1 Pollution Control Officer 14 5.2 Stormwater Management 14 5.2.1 Implementation of ISGP Requirements 14 5.2.2 Site Stormwater Treatment System 15 5.3 Additional Stormwater Best Management Practices 16 5.3.1 Wheel Wash 16 5.3.2 Site Sweeping 17 5.3.3 Berming of Structure Footprints 17 5.3.4 Plastic Covering and Liners for Exposed Areas 17 5.3.5 Project Inspections 17 5.4 Air Emissions/Dust Control 17 5.4.1 Sources of Air Emissions 17 5.4.2. Air Emissions Control Measures 18 5.4.3 Air Monitoring 19 5.4.4 Corrective Actions 20 2 5.5 Hazardous Material Container Storage and Handling 20 5.6 Waste Management 21 5.7 Spill Response 22 5.8.1 Spill Response Procedures 22 5.8.2 Employee Training 23 6 Site Health and Safety 24 7 Site Security 25 3 List of Tables, Figures, Attachments, and References Tables Table 1 Table 2 Table 3 Figures Project Management Team Summary of Dangerous Waste Management Units Closure Status Air Emissions and Control Measures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6a Figure 6b Figure 7a Figure 7b Attachments Demolition Plan Site Map and Sequencing Plan Tentative Schedule Temporary Erosion and Sediment Control Measures Planimetric Survey of Site Pits TC-24 Transformer Room ISGP Stormwater Pollution Prevention Site Map Stormwater System Conveyance Map Stormwater Treatment System Stormwater Retention Tanks Attachment 1 Attachment 2 Attachment 3 Attachment 4 Attachment 5 Attachment 6 Attachment 7 Reference Documents Letter from Ecology, November 18th, 2020, re: Site Closure at Star Forge LLC DBA Jorgensen Forge Fill Specifications Letter Fill Material Sampling Work Plan Cultural Resources Inadvertent Discovery Plan Cultural Resources Historic Building Mitigation Plan Administrative Order 18074 Administrative Order 18160 City of Tukwila SEPA Environmental Review, 2019. Star Forge Facility Building Demolition (September 23`d, 2019). DH Environmental, Inc., 2020. Dangerous Waste Clean Closure Report. Former Jorgensen Forge Site. Perteet, 2019. Cultural Resources Assessment for the Star Forge Development Project King County, Washington. Sound Earth Strategies. 2013. Hazardous Materials Survey Report. Sound Earth Strategies. 2019. Hazardous Materials Survey Report (August 20, 2019). Sound Earth Strategies. 2019. Hazardous Materials Survey Report (October 4, 2019). Email from Holly Borth, Preservation Design Reviewer, Department of Archaeology and Historic Preservation November 27th, 2019. Star Forge Response to Ecology's Demolition Plan Comments - Final 02-21-2021 4 Former Jorgensen Forge Facility Demolition Work Plan 1 Introduction This Demolition Work Plan has been developed on behalf of Star Forge, LLC (Star Forge) to describe the plan for demolition and site restoration of the former Jorgensen Forge Facility located at 8531 East Marginal Way South in Tukwila, Washington (the "Property"). Star Forge, the current owner of the Property, has contracted with Construction Group International (CGI) to conduct hazardous building materials abatement, demolition, and site restoration. DH Environmental, Inc. (DH Environmental) has been retained by Star Forge to support the project with environmental compliance services, stormwater management, and waste management services. 1.1 Project Overview Star Forge has applied for a permit to demolish the building superstructures at the site and, as a precondition to demolition, has designated all known or suspected Dangerous Waste, conducted hazardous building materials (HBM) surveys and associated HBM abatement activities, and implemented Clean Closure requirements on above ground "debris" as defined in WAC 173-303-040 and referenced in Ecology's Clean Closure guidance. Ecology has entered into an Agreed Order with a prior owner of the Property, Earle M. Jorgenson Co. ("EMJ") to conduct cleanup actions related to contaminated soils and groundwater at the Property. This project for which a demolition permit is being sought does not entail excavation of subsurface soil, soil remediation, removal of concrete slabs or foundations that could disturb underlying environmental media or removal or relocation of subsurface utilities. 1.1.1 Site Description The formerJorgensen Forge Facility consists of approximately 21.6 acres located in an industrial area along the east bank of the Lower Duwamish Waterway. The site is bordered to the north by Boeing Plant 2, and to the south by the Boeing Isaacson property. It is bordered to the west by the Lower Duwamish Waterway, and to the east by East Marginal Way South and the King County Regional Airport. The property was used from 1942-1965 for fabrication of structural steel, tractor, and road equipment. Operations at the site included forging and heat -treating operations conducted by Isaacson Iron Works, for the U.S. Navy. The property was owned and operated by EMJ from 1965 until 1992, when it was purchased by Jorgensen Forge Corporation ("JFC"). JFC manufactured specialized large-scale metal parts for the aircraft and marine industries, including open die steel forgings and rolled aluminum rings. They also processed nickel, titanium, and specialized alloys. Industrial use of the Property since the 1940's has resulted in soil and groundwater contamination documented in previous studies. Contaminated groundwater may have also migrated onto the property from off -site sources. Contaminants of concern at the site include the below contaminants. This list is not comprehensive. ■ Polychlorinated biphenyls (PCBs) ■ Volatile organic compounds (VOCs) ■ Halogenated volatile organic compounds (HVOCs) ■ Metals (including but not limited to arsenic, cadmium, chromium, lead, nickel, copper, and zinc) The site includes 16 buildings as shown in Figure 1— Demolition Plan Site Map and Sequencing Plan, totaling approximately 323,118 SF. The demolition permit is for these buildings only. 1 Former Jorgensen Forge Facility Demolition Work Plan 1.1.2 Project Management Team Star Forge has contracted with CGI to conduct hazardous building materials abatement, demolition, and site restoration. DH Environmental has been retained by Star Forge to support the project with environmental compliance services, stormwater management, and waste management services. Clearwater Services is a subcontractor to DH Environmental and operates the stormwater treatment system. Table 1 below shows the Project Management Team roles and contact information. Name Company Project Role Contact Information James Robertson Star Forge Executive / Owner Representative Phone: 281.785.7875 Email: jrobertson@jorgensenforge.com Wayne Turk Star Forge Project Administrator Phone: 206.255.8177 Email: wturk@jorgensenforge.com Mark Marcell Construction Group International LLC Contractor Project Executive Phone: 206.718.5501 Email: markm@cgius.net Steve Ness Construction Group International LLC Contractor Project Manager Phone: 206.251.3664 Email: steven@cgius.net Carl Linder Construction Group International LLC Contractor Superintendent / Safety Officer Phone: 425.512.5437 carll@cgius.net Carol Crane Construction Group International LLC Contractor Foreman / CESCL Phone: 425.512.5437 Email: carol@cld-construction.com David Hill, PE, CHMM, CPEA DH Environmental Environmental Engineer Phone: 206.293.3126 Email: davelhill@dhenviro.com Stacy Fox, CHMM DH Environmental Stormwater Manager Phone: 206.777.5159 Email: stacyfox@dhenviro.com Daniel Lipinski Clearwater Services Stormwater Treatment Manager Phone: 206.660.6845 Email: danie3.lipinski@clearwaterservices.com Table 1: Project Management Team 1.1.3 Regulatory Background Dangerous Waste Clean Closure DH Environmental prepared and submitted a Dangerous Waste Clean Closure Report to Ecology for the purpose of documenting the Clean Closure of Dangerous Waste Management Units (DWMUs) at the facility on 22 July 2020. The Clean Closure Report documented removal of Dangerous Waste from the facility and provided updated records of Dangerous Waste Designations of debris, slag, and materials associated with the DWMUs at the facility such as concrete slabs and foundations and containment areas. Attachment 1 is a letter from Ecology clarifying Ecology's position and expectations for remaining Clean Closure requirements. Following demolition of the buildings, remaining clean closure work will be conducted under a separate administrative process with Ecology. Summary of DWMUs Closure Status Three DWMUs were identified for closure in accordance with WAC 173-303-200(3)(h). Table 2 below summarizes the current status of each DWMU in accordance with the Dangerous Waste Regulations. The Clean Closure Report may be referenced for associated maps, figures, and points of reference. 2 Former Jorgensen Forge Facility Demolition Work Plan DWMU Name Media Designation Performance Standard Status of Numeric Clean Closure Levels Central Accumulation Area The DWMU concrete slab and superstructure are Non- Hazardous Debris. High Pressure Steam and Water Sprays Exceeds MTCA Method A, Unrestricted, for Diesel Range Organics Tote Storage Area The DWMU asphalt slab and superstructure are Non- Hazardous Debris. High Pressure Steam and Water Sprays Exceeds MTCA Method A, Unrestricted, for Diesel Range Organics and PCBs Baghouse North ■ The DWMU concrete slab is K061 Hazardous Debris. • The DWMU superstructure and baghouse tunnel is Non -Hazardous Debris. High Pressure Steam and Water Sprays, Physical Abrasion and Scrubbing Exceeds MTCA Method A, Unrestricted, for Diesel Range Organics and Hexavalent Chromium Baghouse South • The DWMU concrete slab is Non -Hazardous Debris. • The DWMU superstructure and baghouse tunnel is Non -Hazardous Debris. High Pressure Steam and Water Sprays, Physical Abrasion and Scrubbing Exceeds MICA Method A, Unrestricted, for Diesel Range Organics Baghouse Utility Trench • The Baghouse Utility Trench is Non -Hazardous Debris High Pressure Steam and Water Sprays, Physical Abrasion and Scrubbing Contaminant levels are below MTCA Method A Table 2 • Summary of Dangerous Waste Management Units Closure Status Central Accumulation Area The Central Accumulation Area concrete slab has been designated as Non -Hazardous Debris. The concrete slab does exceed Model Toxics Control Act (MTCA) Method A cleanup levels for diesel range organics and Star Forge will be responsible for either removing and disposing of the slab as solid waste, or conducting further surface decontamination to meet performance standards which includes either: 1) Removing 0.6 cm ("1/4 inch) of the slab by scarification or other means to a "clean debris surface"; or 2) Propose site -specific decontamination methods (such as additional high-pressure steam and water sprays, using detergents, abrasion, or additional scrubbing) to removal hazardous contaminants from debris surface. The slab will be protected during demolition as described in Section 2.3 to avoid cross contamination or further contamination of environmental media. Following building demolition, slab decontamination or removal will be conducted under a separate administrative process with Ecology. Tote Storage Area The Tote Storage Area asphalt slab has been designated as Non -Hazardous Debris. The concrete slab does exceed MTCA Method A cleanup levels for diesel range organics and PCBs. Because it is uncommon for generators to successfully decontaminate asphalt due to its porosity and the high likelihood of contaminant migration, Ecology has stated that the asphalt must be removed and disposed of at RCRA Subtitle D facility without the option of decontaminating the slab. The slab will be protected during demolition as described in Section 2.3 to avoid cross contamination or further contamination of environmental media. After demolition of the superstructure, the slab will be removed under a separate administrative process with Ecology. 3 Former Jorgensen Forge Facility Demolition Work Plan Baghouse The Baghouse North concrete slab has been designated as Hazardous Debris for K061 Listing. The concrete slab also exceeds MTCA Method A cleanup levels for diesel range hydrocarbons and hexavalent chromium. This slab will be removed and disposed of off -site as K061 Hazardous Waste after demolition of the superstructure has occurred. However, removal of the slab is not part of this demolition project and will be conducted under a separate administrative process with Ecology. Star Forge will protect this slab during demolition as described in Section 2.3 to avoid cross contamination or further contamination of environmental media. The baghouse tunnel is the baghouse dust conveyance connecting the former melt shop and the baghouse. The baghouse tunnel will be cut in place and carefully lowered to the ground using cranes onto a bermed exclusion zone where the tunnel can be inspected again prior to further reduction. Any remaining dust will be removed using a combination of "wet wiping" and the use of a vacuum truck. Misting will also be used if necessary. All media generated from removing residual dust will be managed as K-listed waste. The baghouse tunnel and all baghouse equipment will also be visually inspected once they have been brought to ground level so they can be safely and more thoroughly evaluated prior to off -site disposal or recycling to ensure treatment performance standards have been met'. The Baghouse South area exceeds MTCA Method A cleanup levels for diesel range organics. Star Forge will similarly protect this slab during demolition as described in Section 2.3 to avoid cross contamination or further contamination of environmental media. However, removal of the slab is not part of this demolition project and will be conducted under a separate administrative process with Ecology. Toxic Substance Control Act / Performance Based Cleanup and Disposal of Transformer Spill During a sampling event on 16 September 2020, DH Environmental discovered that vandals had broken into one or more of the buildings to be demolished and had damaged a transformer while attempting to steal copper windings. Approximately 5-gallons of PCB transformer oil was spilled by the trespassers on the second floor of the south side of the facility. DH Environmental removed all free liquids and secured the spill area until removal or remediation of the impacted concrete can take place. Due to the nature of the spill and its location in the facility, completion of the cleanup will be most efficiently conducted during demolition of the facility. Section 4 describes how Star Forge will complete the cleanup under the performance -based disposal requirements of 40 CFR 761.61(b). Underground Storage Tank (UST) Regulations The facility has two separate structures encompassing 18 partially buried storage tanks that are regulated under WAC 173-360A. The tanks have been emptied, licensed with Ecology, and covered under appropriate financial assurance mechanisms. Decommissioning of the USTs will be conducted under a separate administrative process with Ecology. State Environmental Policy Act (SEPA) A SEPA checklist has been submitted to the City of Tukwila as required for acquisition of the demolition permit. This Work Plan addresses comments prepared by Ecology under SEPA concerning environmental controls and stormwater management. Clean Water Act / NPDES Permit Stormwater at the site is managed to meet the requirements under Ecology's Industrial Stormwater General Permit (ISGP), a National Pollutant Discharge Elimination System (NPDES) permit for stormwater discharges associated with industrial activities. On 09 April 2020, an Administrative Order (AO) was issued by Ecology requiring all ' From December 2019 to March 2020, Clean Harbors Environmental Services, on behalf of Star Forge, conducted extensive dust removal and cleaning of the baghouse equipment. The baghouse equipment, including the baghouse tunnel was cleaned to Alternative Treatment Standards using a combination of high-pressure steam and water sprays, and physical scrubbing. 4 Former Jorgensen Forge Facility Demolition Work Plan stormwater to be retained and tested prior to discharge. On 29 July 2020, the Administrative Order was modified to accommodate higher discharge limits of trivalent chromium and barium. The Administrative Order, along with the modification, is included in Attachments 6 and 7, respectively. 5 FormerJorgensen Forge Facility Demolition Work Plan 2 Demolition Scope and Operations The demolition scope includes the demolition and off -site disposal of all above ground structures. Concrete slabs and foundations will remain as part of the site restoration/asphalt overlay work. All pits, depressions, and voids will be filled with clean crushed rock, compacted, then covered by 4" of asphalt paving. To the extent feasible, paving will occur prior to demolition. In some cases, additional paving will occur after demolition in areas where paving was impractical due to existing site features. Section 2.2 further discusses filling of pits, vaults and voids. A sequencing plan is provided in Figure 1 and a tentative demolition schedule is provided in Figure 2. 2.1 Pre -Demolition Site Preparation Prior to demolition, accumulated area -wide dust and debris that could become airborne within the demolition areas will be removed from the concrete floors to the extent practical and disposed of off -site. The area -wide dust has been designated as Non -Dangerous Solid Waste. During demolition and site stabilization, this media may need to be removed and disposed of off -site for dust control, and surface preparation for asphalt application. Drums and/or solid waste containers will be available to contain the area wide dust before, during, and after demolition. The area wide dust may be removed through sweeping, vacuum truck, or by heavy equipment if necessary. The designation of the area -wide dust does not apply to any subsurface environmental media, which will not be disturbed during demolition. Certain areas within the building have exposed soil at the surface. Star Forge does not believe the exposed soil is native soil due to the thickness of the concrete foundations. This exposed soil is believed to be "track -in" from years of operation and, in some cases, may be imported aggregate for base course or paver base for equipment pads, walkways or other in -plant facilities. These areas will be covered with geomembrane liners or heavy duty (15+ mil) tarps that will be installed in a manner to prevent stormwater from running from paved areas to exposed soil beneath the edge of the geomembranes. The liners will be monitored daily and maintained or replaced, as necessary. In addition, rubber tires may be placed on top of the liners to protect them from penetration by falling debris and building materials. In accordance with WAC 296-155-755 — Demolition Preparatory Operations, the following will be conducted as preparatory operations by the demolition contractor, CGI. Preparatory Operations 1. Prior to permitting employees to start demolition operations, CGI will conduct an engineering survey, by a competent person, of the structure to determine structural integrity and the possibility of unplanned collapse of any portion of the structure. CGI will similarly check adjacent structures where employees may be exposed. CGI will have in writing, evidence that such a survey has been performed. 2. CGI will maintain a copy of the survey report and of the plans and/or methods of operations at the job site for the duration of the demolition operation. 3. Any device or equipment such as scaffolds, ladders, derricks, hoists, etc., used in connection with demolition work will be constructed, installed, inspected, maintained and operated in accordance with the regulations governing the construction, installation, inspection, maintenance and operation of such device or equipment as specified in other applicable regulations. 4. CGI will observe federal and state codes, safety standards, rules, regulations, and ordinances governing all phases of demolition work at all times. 6 Former Jorgensen Forge Facility Demolition Work Plan 5. CGI will conduct demolition of all buildings and structures under competent supervision and will afford safe working conditions to the employees. 6. When employees are required to work within a structure to be demolished which has been damaged by fire, flood, explosion, or other cause, CGI will shore or brace the walls or floors. 7. CGI will shut off, cap, or otherwise control all electric, gas, water, steam, sewer, and other service lines outside the building line before demolition work is started. In each case, CGI will notify any utility company which is involved in advance. 8. If it is necessary to maintain any power, water, or other utilities during demolition, such lines will be temporarily relocated, as necessary, and protected. 9. CGI will determine whether asbestos, hazardous materials, hazardous chemicals, gases, explosives, flammable materials, or similarly dangerous substances remain at the work site. When the presence of any such substance is apparent or suspected, CGI will perform testing and removal or purging and eliminate the hazard before demolition is started. Removal of such substances will be in accordance with the requirements of chapters 296-62 and 296-65 WAC. 10. Where a hazard exists from fragmentation of glass, CGI will remove such hazards. 11. Where a hazard exists to employees falling through wall openings, CGI will protect the opening to a height of between 36 and 42 inches. 12. When debris is dropped without the use of chutes, the area onto which the material is dropped will be completely enclosed with barricades not less than 42 inches high and not less than 20 feet back from the projected edge of the opening above. CGI will post signs, warning of the hazard of falling materials, at each level. CGI will not permit removal in this lower area until debris handling ceases above. 13. All floor openings, not used as material drops, will be covered over with material substantial enough to support the weight of any load which may be imposed. CGI will properly secure such material to prevent its accidental movement. 14. Except for the cutting of holes in floors for chutes, holes through which to drop materials, preparation of storage space, and similar necessary preparatory work, CGI will begin the demolition of exterior walls and floor construction at the top of the structure and proceed downward. CGI will remove and drop each story of exterior wall and floor construction into the storage space before commencing the removal of exterior walls and floors in the story next below. 15. CGI will not permit workers to carry on a demolition operation which will expose persons working on a lower level to danger. 16. CGI will completely protect employee entrances to multistory structures being demolished by sidewalk sheds or canopies, or both, providing protection from the face of the building for a minimum of 8 feet. All such canopies must be at least two feet wider than the building entrances or openings (one foot wider on each side thereof) and must be capable of sustaining a load of 150 pounds per square foot. 17. CGI will withdraw protruding nails in boards, planks and timber, driven in or bent over as soon as the same is removed from the structure being demolished. 7 Former Jorgensen Forge Facility Demolition Work Plan 18. CGI will sprinkle any material to be removed which will cause dust to be formed, with water to lay the dust incidental to its removal. 2.2 Filling of Pits, Vaults and Voids The Property has multiple pits, vaults, voids, including one basement under the main office building as shown in Figure 4 — Boundary and Planimetric Survey. Prior to demolition, all pits, vaults, and voids will be filled with compacted fill material as specified by a licensed professional engineer. Attachment 2 includes the suitable fill material, compacted fill method, and special inspections signed by a Washington State Licensed Engineer. This letter is titled "Support of Correction Letter #1 Development Permit Application Number D19-0311". Special inspections will be completed by a qualified third -party inspection firm. Up to 35,000 tons of fill is expected to be imported; it will be sourced to ensure that it meets cleanup levels for chemicals of concern. The fill material will be analyzed for chemicals of concern identified in Column B of the Washington State Department of Ecology's Lower Duwamish Waterway Preliminary Cleanup Levels (PCULs) Workbook, Soil Summary page, which can be found as "Preliminary Cleanup Levels for the Lower Duwamish Waterway" dated April 5, 2019. The results will be compared to Column F ("Most Stringent Soil PCUL Saturated Zone Non -potable GW") of that same page. A Fill Material Sampling Work Plan has been prepared and included in Attachment 3. The location of the pits and subsurface site features are shown in Figure 4 — Boundary and Planimetric Survey. 2.3 Paving Paving may occur at multiple stages, including as part of pre -demolition site preparation (before and after filling of the pits), and after demolition as part of post demolition site restoration. After the superstructure is removed, final paving may be required for any damaged pavement, and to pave over areas that were inaccessible previously. Upon completion of backfilling the pits, vaults, and voids with specified fill, the fill areas will be covered by asphalt paving. However, paving may occur at multiple stages as part of pre -demolition site preparation (before and after filling of the pits), and after demolition as part of post demolition site restoration. For example, it may be necessary to conduct paving initially to stabilize dust and exposed soil so that equipment can move about the interior of the building prior to filling of the vaults. After the pits and vaults have been filled, more paving may be conducted to the extent possible with the superstructure in place. 2.4 Protection of DWMUs During Demolition Prior to demolition, the concrete slabs for the DWMU's including the Central Accumulation Area, the Tote Storage Area, and the Baghouse North will be first sealed with an appropriate polyethylene coating for concrete, or asphalt in the case of the Tote Storage Area. The sealant will ensure the slabs are water resistant and can withstand physical and chemical impacts. After sealing the slabs, a removable geomembrane will be placed over the slabs to protect the concrete from penetrations due to equipment tracks and falling debris. Tires may be added on top of the geomembrane layer to further protect the slab from penetrations due to falling building materials. 2.5 Cultural Resources Inadvertent Discovery Plan A Cultural Resources Inadvertent Discovery Plan has been developed for this project and is included as Attachment 4. The plan details the steps to follow should the unanticipated discovery of cultural resources occur during ground disturbance by Star Forge staff, volunteers, contractors, or subcontractors. Attachment 5 is the Cultural Resources Historic Building Mitigation Plan for the project. 8 Former Jorgensen Forge Facility Demolition Work Plan 2.6 Utility Protection No subsurface utilities will be removed or relocated. CGI will protect all known or suspected utilities including but not limited to existing utility lines, poles, wires, cables, transformers, risers, monitoring wells, junction and meter boxes, vaults, and stormwater catch basins. Protection of these utilities will include the following: • Establish a zone of protection around each surface feature located near the work areas and delineate each zone with brightly colored flags, signs, cautionary tape, or equivalent. Delineators shall be readily visible from the operator's position of motorized equipment. • To the extent practical, establish equipment travel routes that are not in close proximity to surface features, and place physical barriers between the utility feature and travel or work zones to prevent damage due to anticipated construction activities. • Maintain adequate cover or install equivalent protective measures to prevent damage to utilities from traffic loads and construction activities. • CGI will promptly notify Star Forge and applicable utility purveyor in the event an unknown utility line is encountered, or a line is encountered that conflicts with completion of the work. 2.7 Post Demolition Site Restoration After the pits and exposed soil areas are filled, compacted, and temporarily covered, the structures will be deconstructed following any special requirements detailed in the pre -demolition engineering survey. The site will then be cleared of demolition debris and dust. Finally, four inches of asphalt pavement will be laid over previously covered areas of the Property (which consist of the recently filled pits, vaults, trenches, and exposed soil areas). These areas will be crowned so water will be directed to the existing stormwater collection system on -site. Other previously covered areas of the property are concrete slab on grade and will remain intact. A Washington State licensed engineer will inspect the storm system at the conclusion of demolition activities to verify the system components are functioning adequately and may work with CGI during the demolition process to ensure the condition of the site at completion of demolition supports appropriate drainage. The stormwater treatment system will be maintained and operated until such time that the facility's Industrial Stormwater General Permit is terminated. Further details about the environmental controls to be implemented at the site, including the stormwater treatment system, are provided in Section 6. The DWMU's will remain protected as described in Section 2.3 until the slabs are removed or decontaminated. 2.8 Equipment Various types of equipment will be used for demolition of the structures on the project. Hoisting equipment provided for this project shall consist of the following: • One (1) 6,000-10,000 Ib. Hi -Reach 4WD 40'-60' extended boom forklift • One (1) 5,000-6,000 Ib. industrial warehouse forklift • 40'-44' electric scissor lifts • 50' scissor lifts with outriggers • 60' articulating manlifts • 60' extended manlifts • 80 extended manlifts 9 Former Jorgensen Forge Facility Demolition Work Plan • 12'-20', 26', 32'-33' or 40' electric scissor lifts depending on height and quantity of the work in any given area Articulating and extended manlifts will be used for high bay work or work which cannot be accessed from directly below and exceeds the operational height of scissor lifts. Demolition equipment and material handling machines will include the following: • 370 series excavator(s) • 350 series excavator(s) • 300 series excavator(s) • 200 series excavator(s) • Backhoe(s) • Front loader(s) • Concrete processor(s) • Steel processor(s) • Hydraulic hammer(s) • Plate compactor(s) • Equipment mounted magnet(s) • Dump trucks and pups • Bobcats • Skid steers • 60' extended manlifts • 80' extended manlifts • 12'-20', 26', 32'-33' or 40' electric scissor lifts depending on height and quantity of the work in any given area Star Forge does not intend to process concrete debris into recycled aggregates on -site. Any concrete processing will be conducted only to reduce the size of demolition debris to appropriate dimensions for loading and off -site transportation to a permitted landfill or recycling facility. Cranes will be utilized for handling and lowering of building components requiring special handling such as the baghouse tunnel, baghouse equipment, and PCB transformers. Specific crane types and sizes will be identified in CGI's Site -Specific Health and Safety Plan. General crane engineering controls and work practices include the following:2 • Ensure that a competent person inspects all machinery and equipment before and during each use, to confirm that it is in a safe operating condition. A competent person can recognize existing and predictable hazardous conditions and has the authority to take prompt corrective measures to eliminate the hazardous conditions. • If observed during an inspection, ensure that deficiencies are repaired, and defective parts are replaced before machinery and equipment is used. • Post any recommended operating speed, rated load capacities, or other instructions near the operator. • Position cranes on firm and level surfaces; use outriggers as needed. • Consult the crane load chart and do not exceed the rated capacity of the crane and rigging for the planned lift. • Use the hand signals prescribed by ANSI for the type of crane being used; post an illustration of the signals at the job site. 2 Adapted from OSHA's Operation -Specific Sheets — Crane Use: https://www.osha.gov/SLTC/etools/hurricane/crane-use.html 10 Former Jorgensen Forge Facility Demolition Work Plan ■ Ensure that the pathway is clear before executing a lift. ■ Maintain at minimum a 10-foot working clearance from power lines rated at 50 kV or less; increase this clearance by 0.4 inches for each 1 kV above 50 kV; where it is difficult for the operator to maintain the desired clearance by visual means, designate a person to observe clearance of the equipment and give timely warning for all operations. ■ Ensure that reciprocating, rotating, or other moving parts or equipment are guarded if capable of being contacted by workers. ■ Do not make any additions or modifications to the crane without written approval from the manufacturer. ■ When a mobile crane is mounted on a barge, ensure that the rated load of the crane is not exceeded, a loading chart is provided, and that the crane is positively secured. ■ Ensure that floating cranes and derricks used for wet debris removal meet the applicable design, construction, installation, testing, maintenance, and operation requirements set by the manufacturer. 11 FormerJorgensen Forge Facility Demolition Work Plan 3 Hazardous Building Materials A series of hazardous building materials surveys were conducted by SoundEarth Strategies and comprised the asbestos "good faith surveys" for the project in accordance with Puget Sound Clean Air Agency (PSCAA) Regulation III, Section 4.02. The survey reports have been and will continue to be available on -site for the duration of the project in accordance with PSCAA Regulation III, Section 4.02(b)(3). The survey reports identified asbestos containing material, lead paint, universal waste lamps, PCB and non -PCB ballasts, and mercury containing devices that require removal prior to demolition. 3.1 Work Completed From 2019 — February 2020, CGI conducted abatement activities of the hazardous building materials identified in the survey reports. Except for Galbestos3 siding remaining on the buildings, the known abatement work is complete. 3.2 Work to Be Completed Concurrently with Demolition Remaining hazardous building materials removal and/or abatement is limited to Class 2 Asbestos Work' associated with the Galbestos siding. The possibility remains that additional asbestos containing material will be discovered during the project. DH Environmental will provide stand-by AHERA inspectors to assess any potential ACM encountered and will be prepared to sample, test, and advise on the disposition of the material for the duration of the project. 3.3 Universal Waste Removal and Disposal/Recycling The majority of universal wastes, including the below items, have been removed from the facility and recycled at an appropriately permitted recycling facility. ■ Batteries ■ Lights, lamps, light bulbs, and light tubes ■ Mercury -containing thermometers ■ Mercury -containing thermostats ■ Mercury -containing switches and relays Some universal waste lamps, ballasts, and fixtures remain in place and will be removed prior to demolition. The pre -demolition engineering survey will identify any additional universal wastes to be removed. 3 Galbestos is the registered trademark for galvanized panels consisting of thick gauge, corrugated galvanized metal sheeting with thin, double -sided asbestos felt -like coatings. 4 Class 11 asbestos work means activities involving the removal of ACM which is not thermal system insulation or surfacing material. This includes, but is not limited to, the removal of asbestos -containing wallboard, floor tile and sheeting, roofing and siding shingles, and construction mastics. 12 Former Jorgensen Forge Facility Demolition Work Plan 4 TSCA Transformer Spill Performance Based Cleanup and Disposal During a sampling event on 16 September 2020, DH Environmental discovered that a break-in had occurred at the facility and the trespassers damaged a transformer while attempting to steal copper windings. As a result, approximately 5-gallons of PCB transformer oil was spilled on the second floor of the south side of the facility. DH Environmental conducted initial cleanup efforts and removed all free liquids and secured the spill area until removal or remediation of the impacted concrete can take place. Due to the nature of the spill and its location in the facility, completion of the cleanup will be most efficiently conducted during demolition of the facility. The following describes how Star Forge will complete the cleanup under the performance based cleanup requirements of 40 CFR 761.61(b). Figure 5 provides a photo of the view to the north showing the former Melt Shop Area. The damaged transformer, TC-24, is located on the 2nd floor behind the window marked in yellow. Transformer oil also dripped through holes in the floor to the first floor directly beneath the TC-24 room and impacted concrete. An additional, intact transformer (Transformer TC-23) is in a room to west of where TC-24 is located. This transfer contains residual PCB oil concentration of 14.3 mg/kg. Both transformers will be managed as TSCA transformers and excluded from the Dangerous Waste Regulations per WAC 173-303-071(k). As the first step in the overall physical demolition of the structures, the following will be conducted: 1. The areas where the transformer leaked will be further inspected for any loose, potentially impacted debris including shattered bushings and other transformer components. This debris will be removed and placed in a container designated for TSCA Regulated Disposal. 2. The areas where the transformer leaked will be demarcated as TSCA Regulated Debris with a distinct, high visibility coating that can be discerned from non-TSCA debris. 3. Both transformers on the second floor will be unbolted from the floor and readied for removal, which includes removal of any free oil and rigging, and removal of loose or extending parts such as bushings. 4. Using excavator shears, concrete breakers, and other demolition equipment, the impacted areas will be exposed beginning with the 3' floor equipment room as shown in Figure 5. 5. The two transformers will be rigged and removed from the second floor using either a long reach excavator or crane. The transformers will be placed in drip pans and readied for transport to Chemical Waste Management in Arlington, OR. 6. Using excavator shears, concrete breakers, and other demolition equipment, the demarcated concrete will be removed and placed in a container designated for TSCA Regulated Disposal. 7. All containers, including the transformers will be appropriately labeled with the PCB Large ML mark in accordance with 40 CFR 761.40. 8. All equipment used for the PCB Performance Based removal will be decontaminated in accordance with 40 CFR 761.79. All TSCA regulated waste will be transported to and disposed of at the Chemical Waste Management facility in Arlington, OR, a TSCA permitted disposal facility. The Performance Based Disposal cleanup is expected to generate approximately 20 cubic yards of TSCA regulated debris, and two TSCA regulated transformers. 13 Former Jorgensen Forge Facility Demolition Work Plan 5 Environmental Controls and Monitoring 5.1 Pollution Control Officer During demolition and site work, a Pollution Control Officer will monitor erosion and sediment control, water quality protection, dust control, and waste management. The role of Pollution Control Officer will be staffed by a pool of qualified staff provided by DH Environmental. The Pollution Control Officer will have over 10 years of experience monitoring environmental compliance on heavy construction and demolition sites. A Pollution Control Officer will always be on -site when active demolition or other site work is taking place. The Pollution Control Officer will also perform daily inspections of the site to confirm all identified BMP's are being implemented and are effective. If necessary, additional BMP's will be implemented as identified by the Pollution Control Officer or other Pollution Prevention Team members. The Pollution Control Officer will work closely with the CGI's CESCL to implement and monitor appropriate BMPs. The Pollution Control Officer will be an on -site Owner's Representative with stop -work authority. If there is a disagreement that cannot be resolved between the Pollution Control Officer and the contractor's CESCL regarding BMPs, a Stop Work Order will be issued and the work in question will be halted until an agreement can be made between Star Forge and the contractor. 5.2 Stormwater Management 5.2.1 Implementation of ISGP Requirements Star Forge has developed a Stormwater Pollution Prevention Plan (SWPPP) as require by the ISGP. The SWPPP has been modified to incorporate Best Management Practices (BMPs) associated demolition and site work. BMPs were selected from the Stormwater Management Manual for Western Washington as applicable. The Administrative Order requires all stormwater on the site to be retained until data is received confirming that the treated batch is in compliance with indicator levels and benchmarks included in the permit and Administrative Orders. Based on hydrology modeling, site rainfall history, and historic site data, Star Forge has determined the required storage capacity to maintain an appropriate volume in storage tanks to collect and retain treated stormwater while awaiting analytical results to determine if stormwater meets the applicable water quality parameters. The tanks are installed and directly connected to the treated effluent stormwater line and Outfall 003, (refer to Figure 7a and 7b for details on the configuration of the treatment system and retention tanks.) This configuration of the piping system prevents any stormwater from directly flowing from the treatment system to the outfall. A watertight plug was installed in the high flow bypass discharge line on 14 April 2020. No stormwater has been released through the bypass since the issuance of the AO. Inspections downstream of the plug will be conducted if/when water reaches the height of the bypass pipe to verify no discharge has occurred. In addition, Star Forge has received a Discharge Authorization (DA# 1122-01) from King County to discharge up to 50,000 gallons per day to the King County POTW in the event of an uncharacteristic rain event, or issue with meeting discharge requirements. Water discharged to King County is also treated onsite prior to discharge. 14 Former Jorgensen Forge Facility Demolition Work Plan 5.2.2 Site Stormwater Treatment System Active Treatment System Under the 2010 Permit, ISGP Jorgensen Forge triggered a Level Three Corrective Action requiring implementation of treatment BMPs. To complete the corrective action, Ecology approved the NPDES Engineering Report and the stormwater treatment system was completed in March 2013. Ecology approved a chemical polymer to be added to the treatment system in February 2020 in order to enhance the treatment system's performance. This treatment system is maintained and operated by Clear Water Systems. Monitoring of water quality is conducted per batch of stormwater treated to verify compliance with discharge limits/indicator levels and to monitor treatment media effectiveness and to prevent breakthrough prior to media replacement. Chemical enhanced sand filtration (CESF) utilizing BHR-P505 has been approved to be implemented to reduce sediment loading into the stormwater treatment system. The stormwater treatment system flow process is shown in Figures 7a and b. Pump Vault and Settling Tank System Currently, the stormwater treatment system operates by pumping water from the central pump vault to five 10,500-gallon storage tanks operating in series to promote settling of suspended solids and associated stormwater constituents. The tanks are monitored for sediment build up and maintained as needed. Pressurized Sand and Multimedia Filtration System Stormwater is pumped from the final settling tank through a pressurized sand filter, a 10-micron bag filter, and two 10,000-pound media vessels in series at a designed flow rate of 550 gallons per minute. Solids that accumulate in the sand filtration media is backflushed to the backflush tank automatically based on differential pressure. The sand filtration is inspected at least monthly and replaced as needed. The bag filters are replaced whenever the differential pressure is greater than 8 psi and are inspected after each significant rain event. The multimedia system will be evaluated during each sampled batch with breakthrough analysis of contaminants of concern and differential pressure monitoring. If the lead vessel demonstrates a removal efficiency of less than 50 percent or presents a significant risk of benchmark exceedance through the secondary vessel, the media of the lead vessel will be replaced. If differential pressure exceeds 20 psi, the vessels will be backflushed to the backflush tank. The backflush tank holds solids from both sand and multimedia filters. When full, water is allowed to decant over to the first settling tank in the series for treatment. The sludge volume in the backflush tank will also be monitored monthly and generally removed on a semiannual basis. Effluent from the treatment system is conveyed to temporary holding tanks for retention and testing to confirm all stormwater meets the water quality standard parameters listed in the Administrative Order prior to release to Outfall 003 via an existing conveyance line. The actual number of retention tanks onsite varies from wet season to dry season depending on stormwater modeling. The current layout of the stormwater conveyance lines, including the Pump Vault, Treatment System, holding tanks and Outfall 003, is shown in Figures 6a and 6b —SWPPP Site Map. Additional information regarding the sizing, design, and O&M of the treatment system is available in the Engineering Report and Operation and Maintenance manual for the treatment system (Wavionics 2012). Component O&M manuals can be found in Appendix J of the SWPPP. BHR-P50 is an approved blended biopolymer and polyaluminum chloride flocculant used for wastewater and stormwater clarification. 15 Former Jorgensen Forge Facility Demolition Work Plan Freeze Protection During cold weather conditions, certain precautions will be taken to protect against freeze events. Consideration of the duration of freezing temperatures, forecasted precipitation, and daytime high temperatures will be considered to set appropriate freeze protection procedures. Freeze protection procedures are subject to change as needed to ensure equipment and personnel safety. Clear Water Services implements all freeze protection requirements as necessary and monitors conditions as needed. The general freeze protection procedures include: • Turn media filter pump switch and media filter controller switch to the "OFF" position. • Shut media filter pump suction valve SF-5. • Open/remove all drain spigots or plugs on plumbing. • Open drain valve on bottom header of sand filter. Discretion and additional measures will be determined by experienced operators for the lifetime of the project. Breakthrough Monitoring Breakthrough monitoring is performed on an ongoing basis. Currently, there are 4 locations that are sampled within the system treatment train to monitor for treatment effectiveness and breakthrough. Water samples are collected at an accessible sampling spigot installed on the influent and effluent of the CESF system and at each metals - targeted media and granular -activated carbon (GAC) vessels. Sampling the effluent of each vessel specifies which GAC media is having breakthrough. Water will be collected into laboratory -supplied sample containers and sent to approved laboratories following standard chain of custody procedures. Compliance Samples Compliance samples are collected from each batch treated from the active treatment system. Batches are tracked utilizing a tracking log that documents the specific tanks that are included in the 'batch", the date the water was treated, as well as sample ID number associated with the representative sample of the water that was submitted to the laboratory for analysis prior to discharge. Factors used to define a "batch" are determined based on projected rain event volumes, and potential for future rain events. 5.3 Additional Stormwater Best Management Practices The scope of this project does not include excavation or grading of soils. However, dust generated from historical industrial operations exists throughout the site. These areas are generally within the footprint of the buildings and therefore have limited exposure to stormwater. As demolition progresses, dust and exposed soils will be managed to limit generation of airborne dust. Section 5.4. contains further details on dust control BMP's. BMP's will be implemented to prevent stormwater from contacting exposed soil and dust. However, all stormwater collected within the site stormwater conveyance infrastructure will be treated through the engineered on -site stormwater treatment system specifically designed to treated for turbidity, TSS, and heavy metals. 5.3.1 Wheel Wash In order to manage trackout and off -site transport of contaminants, a wheel wash will be installed in accordance with the Stormwater Manual of Western Washington. Wheel washes reduce the amount of sediment transported onto paved roads by washing dirt from the wheels of motor vehicles prior to the motor vehicles leaving the construction site. The wheel wash will be adequately sized and installed on a flat surface just prior to the exit of the site. Figure 3 shows the currently planned location of the wheel wash. This location may change as necessary to accommodate site logistics and phasing. Wheel wash wastewater will be managed off -site as process water at an 16 Former Jorgensen Forge Facility Demolition Work Plan appropriately permitted facility for discharge to the sanitary sewer with local sewer district approval. The wheel wash may use closed -loop recirculation water treatment system to conserve water. 5.3.2 Site Sweeping Currently the site is swept weekly with a vacuum sweeper. Sweeping frequency will be increased as necessary depending on site conditions. The Pollution Control Officer will continuously monitor site to determine effectiveness of all BMP's in conjunction with CGI's CESCL. 5.3.3 Berming of Structure Footprints The majority of the structure are encompassed with existing foundation walls that will prevent contaminated stormwater, liquids, or spills from leaving the inside of the building footprint. In areas where gaps exist in the footprint berm, asphalt or water -tight polyethylene curbs will be installed to contain and separate stormwater that falls inside the footprints of the structures. If dust control water must be removed from within the bermed areas, it will be treated and discharged to the sanitary sewer or transported off -site to an appropriately permitted facility. In the event that dust control water must be added and then removed from outside of the building footprint, nearby catch basins will be blocked and the water will be managed in the same manner. 5.3.4 Plastic Covering and Liners for Exposed Areas A removable geomembrane or heavy mil plastic sheeting will be placed over areas of exposed soil that cannot be paved prior to demolition, and will be installed in a manner to prevent stormwater from running from paved areas to exposed soil beneath the edge of the geomembranes. Tires may be added on top of the geomembrane or plastic sheeting to further protect the area from falling building materials. 5.3.5 Project inspections The Pollution Control Officer, in close coordination with the contractor's CESCL, will continuously monitor the site for effectiveness of BMPs, fugitive dust, and stormwater quality. A formal written inspection will be conducted at least weekly and will be documented and retained in the SWPPP records. 5.4 Air Emissions/Dust Control CGI will implement all necessary provisions to control air emissions and dust. The primary objective of air emissions and dust control measures is to formulate a strategy for controlling, to the greatest extent practicable, fugitive or airborne dust emissions and odors at the Star Forge property. This will be accomplished by identifying specific sources and activities that have the highest potential to produce or generate fugitive dust emissions or odors. This plan describes the engineering controls necessary to minimize and control dust emissions from those sources and activities. As necessary, the scope of this plan will be revised to reflect changes in dust control strategy as site conditions or activities warrant. 5.4.1 Sources of Air Emissions Potential sources of air, dust, and/or odor emissions include, but are not limited to the following: 1. Vehicle and equipment traffic; 17 Former -Jorgensen Forge Facility Demolition Work Plan 2. Demolition of structures and associated size reduction of demolition debris; 3. Stockpiling and loadout of debris and other construction materials; 4. Material handling and transfer operations; 5. Wind; 6. Backfilling pits and other subsurface vaults, and associated grading activities; 7. Emissions from vehicles, equipment, and/or generators; 5.4.2 Air Emissions Control Measures CGI will implement air emissions control measures as prescribed in Table 3 below. Additional BMPs to control air emissions may be implemented as prescribed in the Stormwater Management Manual for Western Washington, Volume II — Construction Stormwater Pollution Prevention, BMP C140: Dust Control. This plan is prepared and submitted with the understanding that it is a living document, i.e., it will be modified to address actual site conditions as they arise. These measures will be implemented in conjunction with the project Site Health and Safety Plan. The ISGP prohibits discharge of any dust control water. If there is any potential for runoff of dust control water, catch basins in the vicinity of dust control activities will be blocked in order to prevent an illicit discharge and potential violation of ISGP condition S5.E. If pooled or dust control run-off water must be removed from any project area, it will be either treated and discharged to the sanitary sewer or transported off -site to an appropriately permitted facility. Star Forge will retain at least two 20,000-gallon frac tanks on site for storage of water that cannot be treated, commingled, or discharged with industrial stormwater subject to the ISGP. The baghouse tunnel will be cut in place and carefully lowered to the ground using cranes onto a bermed exclusion zone where the tunnel can be inspected again prior to further reduction. Any remaining dust will be removed using a combination of "wet wiping" and the use of a vacuum truck. Misting will also be used if necessary. All media generated from removing residual baghouse dust will be managed as K-listed waste. 18 Former Jorgensen Forge Facility Demolition Work Plan Table 3: Air Emissions and Control Measures Activity Control Measures • Apply water as necessary in high traffic areas to minimize dust • Run sweepers as needed along equipment and trucking haul routes Vehicle and Equipment Traffic • Wheel wash for all outgoing vehicles • Designate equipment traffic patterns to minimize travel distances, emissions, and potential for dust generation • Limit traffic speed to minimize dust • Apply water to work areas as necessary, including use of water misting fans as appropriate to reduce excessive water runoff • Cover areas of exposed dust as needed to reduce potential mobilization • Limit or halt activities with high potential to generate dust Demolition of structures and during windy conditions associated size reduction of • Demolish, cut, and break up debris in a controlled manner that demolition debris minimizes dust emissions • Move and load debris for offsite disposal in a manner that limits free -fall of material and dis least likelyto generate dust emissions • Run sweepers in areas immediately following demolition and debris removal • Cover and tarp all Toads leaving the site • Cover temporary debris and material stockpiles and work areas, if necessary, to minimize dust and/or stormwater loading Material handling and transfer • Move and load debris for offsite disposal in a manner that limits operations; stockpiling and loadout free -fall of material and in a manner that is least likely to of debris and other construction materials generate dust emissions • Limit or halt activities with high potential to generate dust during windy conditions • Run sweepers in areas immediately following debris removal • Apply water as necessary to minimize dust emissions Wind Erosion • Cover exposed materials with properly weighted sheeting materials when temporary storage is required (overnight, over weekends, temporary storage and staging) 5.4.3 Air Monitoring Star Forge, through its contractors and consultants, will monitor air emissions to attain the Ambient Air Quality Standards of WAC 173-470-100 and ensure the standard for odors as defined WAC 173-400-040 is met. For the duration of the project, an air monitoring program will be implemented to identify and quantify safety and health hazards and airborne levels of particulates or dust. The air sampling program will be used to assure proper selection of engineering controls, work practices, and personal protective equipment for affected site workers, as well as to evaluate the potential impacts to adjacent residences, businesses, and the operations of King County International Airport. 19 Former Jorgensen Forge Facility Demolition Work Plan Star Forge will perform a combination of visual, olfactory, and real time particulate monitoring in and around the work zone. Real time particulate monitoring will be conducted with a handheld particulate air monitor', and long- term monitoring will be conducted using perimeter air monitoring stations along the north and south property boundaries. Particulate data will be monitored by the Pollution Control Officer or the contractor's CESCL. The primary purpose of this monitoring is to ensure the 24-hour ambient air quality standard for total suspended particulates is met. This standard is 150 micrograms per cubic meter (14/m3) or 0.150 mg/m3 for PM10. Pursuant to this standard, a target air monitoring action level of 0.150 mg/m3 will be implemented for the project with an Alert Level of 0.1 mg/m3 for PM10. This monitoring action level may be reevaluated if background suspended particulates are found to be at concentrations that make this action level unreasonable for project operations. Air monitoring from perimeter monitoring stations will be downloaded on a weekly basis, or more often as conditions warrant. 5.4.4 Corrective Actions Star Forge will continuously implement all air monitoring and emissions control provisions. Daily site safety meetings will reinforce the need for all workers to be cognizant and responsive to conditions or activities that generate visible dust or odors. Project supervisors will be notified immediately if excess dust or odors are observed, the total suspended particulate action level is exceeded, or if conditions exist where dust could be a problem. Corrective actions will then be implemented as described below. The sequential corrective action task list for the elimination of fugitive dust and odors at this site is as follows: 1. Reduce the pace of, or cease, dust producing activity until the problem is corrected; 2. Notify the area supervisor of dust conditions and implement dust suppression procedures; 3. Remove accumulated dust from problematic areas, and/or cover, enclose, or isolate dust -generating areas/surfaces to shield them from wind, sunlight, or heat sources; 4. Increase frequency, volume, and/or coverage of water to reduce dust generation; 5. Provide additional dust suppression systems and operating personnel during the task duration; 6. Modify operating procedures and methods to eliminate problematic conditions; 7. Increase level of worker awareness and instruct them on implementation of any new or modified operating procedures; 8. Report and document all procedural modifications and results; 9. Perform routine audits of dust suppression methods and work areas for dust sources. 5.5 Hazardous Material Container Storage and Handling Solid Chemicals, chemical solutions, paints, petroleum products, solvents, acids, caustic solutions, and any waste materials, including used batteries, shall be stored in a manner that will prevent the inadvertent entry of these materials into waters of the state, soil, and groundwater. Storage shall be in a manner that will prevent spills due to overfilling, tipping, or rupture. In addition, CGI shall implement the following specific requirements: 6 HAZ-DUST HD-1100 or equivalent: https://www.coleparmer.com/i/environmental-devices-hd-1100 20 Former Jorgensen Forge Facility Demolition Work Plan 1. All liquid products will be stored on durable, impervious surfaces and within a bermed area or other means of secondary containment capable of capable of containing 10% of the total enclosed volume or 110% of the volume contained in the largest container, whichever is greater. 2. Waste liquids shall be stored under cover, such as tarps or roofed structures in addition to secondary containment. Any waste storage areas, whether for waste oil or hazardous waste, shall be clearly designated as such and kept segregated from products to be used on the site. 3. In the event that a designated hazardous material storage area has been identified and approved by the Pollution Control Officer, CGI will store only hazardous materials specific to the project work in the storage area. 4. All hazardous materials and waste containers will be stored with the container lid secured, to prevent spills or leaking. 5. Spill kits will be maintained on -site in accordance the ISGP and will continue to be on -site during demolition. 6. Dangerous wastes will be managed in accordance with the conditions for exemption for large quantity generators, such as labeling waste containers, accumulating waste on -site no more than 90 days, and following emergency preparedness procedures (WAC 173-303-200 and WAC 173-303-201). 5.6 Waste Management This section contains information on how Star Forge will manage the characterization, cleanup, and removal all hazardous material and waste generated from project operations. Star Forge will implement the following: 1. Star Forge will retain title to all hazardous waste presently on site, encountered during demolition and removal. Star Forge will be shown as the hazardous waste generator and will sign all hazardous waste manifests for non -contractor generated hazardous wastes. 2. Hazardous material(s), solid wastes, and special waste(s) shall be accurately designated at the point of generation and disposed in a fully permitted disposal facility with the approvals necessary to accept the waste materials that are disposed. 3. Contaminated materials, such as absorbent materials, rags, containers, and gloves, shall be collected and placed into labeled containers and/or roll -off boxes. 4. Any unanticipated hazardous materials waste, or contaminated media encountered during construction that are not generated by CGI shall be immediately brought to the attention of the Pollution Control Officer for determination of appropriate action, including notification to the WA State Department of Ecology. 5. Dangerous wastes will be managed in accordance with the conditions for exemption for large quantity generators, such as labeling waste containers, accumulating waste on -site no more than 90 days, and following emergency preparedness procedures (WAC 173-303-200 and WAC 173-303-201). The Pollution Control Officer will be present for the duration of the project to ensure that all waste materials, materials designated for recycling, or water designated for onsite treatment or off -site disposal have been promptly and accurately designated in accordance with WAC 173-303-070. 21 Former Jorgensen Forge Facility Demolition Work Plan 5.7 Spill Response 5.8.1 Spill Response Procedures This section describes the response and cleanup procedures in the event of a spill on -site spill. After personal health and safety, emergency response procedures for an oil or hazardous substance release incident will be prioritized to prevent the spilled material from reaching a point where discharge to navigable waters or other aspects of the environment could occur. Further, a spill or release must be mitigated in a manner that eliminates or minimizes threats to external human health and the environment. Every effort will be made to prevent spills and emphasize substance containment at the source rather than attempt to separate and recover spilled material from the environment to which it has spread. If a spill discharge to surface water occurs or is imminent, the appropriate emergency response agencies will be notified as described below. In general, the following steps will be taken: • Immediately notify the Project Pollution Control Officer. • Implement mitigating measures: o Identify the source along with physical and chemical hazardous. o Reference the 2020 Emergency Response Guidebook for appropriate actions to be taken. o Stop the product flow. Secure pumps, close valves, cover drains. o Warn/ evacuate personnel. Enforce security and safety measures. o Shut off ignition sources. Shut off motors, electrical circuits, open flames, etc. o Contain the material released with dikes, booms, and other absorbent materials. o Place solid materials in a designated container such as a drum, roll -off box, or cubic yard box. o Pump liquids into a frac tank, tote, or drums. o Label all waste cleanup media containers. If laboratory data is pending for waste designation, ensure containers have appropriate labeling with known information. • The Project Pollution Control Officer will make the following notifications as applicable: o 911 and the Tukwila Fire Marshall (206-575-4407). o Washington Emergency Management Division (1-800-258-5990). if you cannot reach an Environmental Officer, notify the State directly. o WA State Department of Ecology Environmental Report Tracking System: Online Statewide reporting form: https://ecology.wa.gov/About-us/Get-involved/Report- an-environmental-issue/statewide-issue-reporting-form Email: nwroerts@ecy.wa.gov Phone: 425-649-7000 o National Response Center (1-800-424-8802) to notify the U.S. Coast Guard for water spills and the EPA for land spills. o DH Environmental, Inc. (206) 293-3126, Clean Harbors (253-639-4240), NRC Environmental (800- 899-4672), or Marine Vacuum (206-762-0240) for vacuum services. 22 Former Jorgensen Forge Facility Demolition Work Plan o Provide courtesy notifications to surrounding businesses if there is a potential for impact to their operations. 5.8.2 Employee Training All project contractors and subcontractors will be trained in source control, spill prevention, and response. A site -specific training program will be implemented for all project contractors and subcontractors. 23 Former Jorgensen Forge Facility Demolition Work Plan 6 Site Health and Safety Prior to commencement of work, CGI will develop and submit to Star Forge a site -specific Health and Safety Plan (HASP) that includes the following elements: • Organizational Structure • Job Hazard Analysis • Site Control • Training Program • Medical Surveillance Requirements • Personal Protective Equipment (PPE) • Exposure Monitoring • Thermal Stress • Spill Response Safety Program • Decontamination Program • Emergency Response Plan • Standard Operating Procedures • Confined Space Programs • Hot Work • Lockout/Tagout In general, all workers at the site will have, at a minimum, 40-Hr Hazardous Waste Operations and Emergency Response (HAZWOPER) training in addition to general industry training, lead in construction, and asbestos awareness as applicable. Specialized training for abatement, rigging, shoring, and crane operations will be specified in CGI's site -specific safety plan. The HASP will address known and potential chemicals of concern, including free petroleum product. Prior to commencing work, CGI will develop a comprehensive COVID-19 exposure control, mitigation, and recovery plan. The plan will include policies regarding the following control measures: PPE utilization; on -site social distancing; hygiene; sanitation; symptom monitoring; incident reporting; site decontamination procedures; COVID- 19 safety training; exposure response procedures; and a post -exposure incident project wide recovery plan. The plan will include a Job Hazard Analysis (JHA), including a list of engineering controls and proper Personal Protective Equipment (PPE), for all jobsite activities defined by Washington State Department of Labor & Industries (L&I) as medium and high transmission risk. A copy of the COVID-19 exposure control, mitigation, and recovery plan will be available at the job site during any demolition or site work and will be available for inspection by state and local authorities. Workers will be trained on applicable safety protocols before their activities begins. 24 Former Jorgensen Forge Facility Demolition Work Plan 7 Site Security The site is currently secured with an 8' chain link fence with barbed wire around the entire perimeter. The main access gate is on the eastside off East Marginal Way and South 86th Place. The property is bordered on the north and south side by sites that are monitored and secured as well. The west side of the property is the bank of the Duwamish River. There is a 24hr security guard service onsite and will be maintained throughout the project. All egress to and from project site will be via this existing gate. The front main gate is closed and locked when no work is occurring or when the guards are not at the front gate. Due to recent security issues at the site, there are 2 guards on the site overnight with one stationed at the gate and the other patrolling the property. There are also 5 portable light plants strategically place around the property to provide light during the night due to the lack of other light sources on the property. Contactors will have access to the gate via use of a daisy chain lock setup. Prior to commencement of demolition work the interior structures are also surrounded by chain link fence and all doors or other access to the building is locked or secured. 25 7 11/19/2020 3.1 PM MOD TI 0 BUILDING_QI 3.216 SF) I BUILDING AI (830 >;F) 7- _AGHGU6i- ® (BUILDING TOTE STORAGE \il '7SHED (624 5F) OUTFALL DISCHARGE LOCATION BUILDING OI )886 SF STORMWATER TREATMENT SYSTEM 40 RCS 00 'BUILDING GI (2.480 SF) 'BUILDING GI-\ f11,831 SR \ 'BUILDING R ;827 SF, (BUILDING N (1,728 SF) CONTRACTOR PARKING 17,-{BUILDING K (10,308 5F) INSTALL WHEEL WASH 'BUILDING J' (29.264 SF) HOLLOWBORE AND MACHINE SHOP AREA BUILDING DI (72.70B SF) 5.000 TON PRESS —"" `- EQUIPMENTVAULT / r STEAM PIPE TUNNEL MELT SHOP WAREHOUSE ARC FURNACE PIT L [BUILDING TSCA PCB TRANSFORMER SPILL CLEAN-UP AREA P37 INGOT MOLD PIT SCALE PIT BUILDING FI ,0 PRESS PIT BUILDING II (6,042 SF) 1--—BUILDING MI HEAT TREAT AREA FORGE SHOP AREA BUILDING Ek )150,578 5F') OILW.ATER OSEPAR.,. OR /- 1BUILDING L I 4 / (10.866 SF) to rr 9�iAAtyy;' Y IMP )UHF Environmental:, Demolition Plan Site Map and Sequencing Plan Star Forge 8531 East Marginal Way South Tukwila. Washington 11i1912020 Stacy Fox Figure 1 PHASES PHASE 1 PHASE 2 PHASE 3 PHASE 4 PHASE 5 SOURCE. GOGGLE EARTH PRO AERIAL MAY 26. 2018. LEGEND PROPERTY BOUNDARY BUILDING OUTLINE EXSISTING CONCRETE BERM 0R SPRAY APPLIED. RIGID POLYURETHANE FOAM WATER -TIGHT BERM INSTALL PRIVACY FENCE GRAVEL SURFACE SF SQUARE FEET * COMBINED SF OF BUILDINGS EAND F ltHAY BALE BARRIER 0 30 60 120 APPROXIMATE SCALE IN FEET Figure 2 - Tentative Demolition Schedule 10RGEN50N FORGE STEEL ID Task Name Duration Start Finish 1 '.PRECONSTBIICTION 335days Mon 9/9/19 Mon1/4/21 2 - PERMITS & PLANING 335 days Mon 9/9/19 Mon 1/4/21 3 Project Planning 5 days Mon 9/9/19 Fri9/13/19 4 Submit Environmental Notifications / Project Extension 325 days Mon 9/16/19 Thu 12/24/20 'ar 5 City of Tukwila Demolition Permit - Anticipated 5 days Mon 12/23/20 Mon 1/4/21 6 CONSTRUCTION 124 days Mon 1/4/21 Fd6/25/21 • 7 GENERAL 174 days Men3%4/21 FA4/26/21 8 Re -Mobilize 5 days Mon 1/4/21 Fri 1/8/21 9 Re -Este Nish Site Office 3 days Wed 1/6/21 Tue 1/12/21 11 Substantial Completion D days Mon 6/14/21 Mon 6/14/21 10 Demobilization 5 days Mon 6/21/21 Fti 6/25/21 22 SITE 23 days Wed 1/6/21 Fr12/5/21 13 Inspect and Replace TESL Measures, As Needed 3 days Wed 1/6/21 FN 1/6/21 14 Install Wheel Wash 3 days Thu 1/7/21 Mon 1/11/21 17 Fill Pits & Exposed Soil Areas 1-5 20 days Mon 1/11/21 Fri 2/5/21 15 Remove Transformers in Building F 2 days Wed 1/33/21 Thu 1/14/21 16 Protect Contaminated Asphalt/Concrete Slabs 18aghouse, Tole Storage) 5 days Mon 1/25/21 Fri 1/29/21 18 PHASE 1- BUILDING C. F, H& BAGHOUSE 79 days Mon 1/11/21 Thu 4/29/21 19 Baghnuse • Abatement 10 days Mon 1/11/21 Fri 3/22/21 20 baghouse - Demolition 10 days Mon 2/1/21 Fr12/12/21 21 Building - Demolkbn 1 day Mon 2/15/21 Mon 2/15/21 22 Building C- Demolition 13 days Tue 2/16/21 Thu 3/4/21 23 Building F- Demolldnn 20 days Fri 3/5/21 Thu 4/1/21 24 Building H - Demolition 20 days Fri 4/2/21 Thu 4/29/21 75 Baghouse Tunnel Exhaust Flue- Demolition to Occur IN/Building F,H 20 days Frl4/2/21 Thu 4/29/21 26 PHASE 2- BUILDINGS I,D, I,M 3g drys Mon2/15/21 Wed4/7/21 27 Buildingl- Demolition 3days Mon 2/15/21 Wed 2/17/21 29 Building l- Demolition 12 days Thu2/13/21 Fri 3/5/21 29 Building 0 - Demolition 22 days Mon 3/8/21 Tue 4/6/21 30 6uiltling M- Demolition 1 day Wed 4/7/21 Wed 4/7/21 31 PHASE 3-BUILDING E 50 days Fri4/2/Z1 Fd6/11/21 32 Building E-Galbestos Abatement 30 days Fri 4/2/21 fiu5/13/21 33 Bonding F- Dem9Olkm 70d81 Fri5/14/31 Frl6/11/21 34 PHASE 4-BUILDINGS L.R,N, G. A, B 76 days Mon1/2S/21 Man S/10/27 39 Storage Building -Abatement 2 days Mon 1/25/21 Tue1/26/21 4D Storage Building - Demolition 2 days Wed 1/27/21 Thu 1/28/21 35 Building L - Demolition 3 days Fri 1/29/21 Toe 2/2/21 36 Building K- Demolition 15 days Wed 2/3/21 Tue2/23/21 37 Building N - Demolition 2 days Wed 2/24/21 Thu 2/25/21 38 Building 6 -Demolition 2days Fri 2/26/21 Mona/1/21 31 Building B-Abatement 1day Fri 5/7/21 Fri 5/7/21 42 Building B- Demolklon 1 day Mon 5/1D/21 Mon 5/10/21 15. '20 Nor 22,'20 Nov 29,20 Dec6. '20 Dec13.20 Dee 20,'20 Dec27.'20 tan 3,'21 Jan 10. tan 17, '21 Jan 2a'.: Jan 31, '21 Feb 1. '21 Feb 16,'21 Feb 21,'21 Feb28,'21 Mar 7,'21 Mar 14,'21: Mar 21,'21 Mar 2B,'21 : Apr 4,21 Apr11'21 Apr18,'21 Apr 25, '21 May2,21 iMay9. '21 T- F M 1 5 W 5 T F M T 5. W' S T F MT 5 W S T F Nl - 5 W. $ T F MT 5 W 5 1 F M T 5: W 5' T F M 1 T S: W- 5 T F M T- 5 W 5 T F M' T 5 W 5, T, F M 1 Submk Environmental Notification, / Project Extension -- City of Tukwila Demolition Permit • Antkipated CONSTRUCTION ' May16,'21 May 23,211i May 30, 21 Ju-(,'2. Jun 13. '21 tun20,'21 S T F, M T ant efllobilire 4rdr -- Re -Establish Site 05110 InrtMMae Ws* Fill Pits & Exposed Soil Areas 15 V Remove Transformers in BuildingF PmtectComambeted Asphalt/Conor0teSlabs (Boohoo, Tote Sternal 6/14. BubskarNal +amour- ,aaghouse- Demo/aloe TF,Banding O - Demolition Budding C- Demolition Buntline F - Demolition 'w'ins H-Demolition M gbaghouseT IExhaust Fl De 110 t Ore W/Building F,N �,,,a.,Building l- Demolition Ming Barnett. Storage Building - Abatement IStmegc Building - Demolition l rmes,. Winding 1-Demolition MdIOY! C - Demdition IBMYIrrg N-Demolition i Building G - Demolition Project: Jorgenson Forge Steel_Revised Schedule Date: 11-19-2020 Page 1 Building D - Demolition Building M - Demolition - -- -- _- - - Building E-G.Ibestos Ab.ecmmn BLliding E - namnktlen Bullding B-Abatement "r... sulldinga- Demolition s s 0 0 0 —I BUILDING Q� .7.215 SF) (r i BUILDING Al (630 SF) Laj L TOTE STORAGE , SHED I624 SF: -e 1 BUILDING B Contractor Laydown Area BUILDING 0 j (886 SF) Stormwater Rentention Tanks BUILDING G STORMWATER — TREATMENT SYSTEM MELT SHOP WAREHOUSE 1 jBUILDING CI (2,480 SF) 'BUILDING lu (1,728 SF) INGOT MOLD PIT CONTRACTOR PARKING g LDING K'i d {1C1'1,83Fj f INSTALL WHEEL WASH (BUILDING J (29,264 SF) HOLLOWBORE AND MACHINE SHOP AREA 5.000 TON PRESS' EQUIPMENT VAULT STEAM PIPE TUNNEL HEAT TREAT AREA FORGE SHOP AREA PRESS Pr ARC FURNACE PIT BUILDING F[� 11011I- Environmental p Temporary Erosion and Sediment Control Plan Star Forge 8531 East Marginal Way South Tukwila. Washington 11i19/2820 Stacy Fox Figure PHASES r 1 1-7 1 11 PHASE 1 PHASE 2 PHASE 3 PHASE 4 PHASE 5 SOURCE' GOOGLE EARTH PRO AERIAL MAY 26, 2018. LEGENDTHESE BMP'S AE IN ADDITION TO THE BMP'S INCLUDED UNDER THE ISGP PROPERTY BOUNDARY BUILDING OUTLINE EXSISTING CONCRETE BERM OR SPRAY APPLIED. RIGID POLYURETHANE FOAM WATER -TIGHT BERM INSTALL PRIVACY FENCE ESAGRAVEL SURFACE SF SQUARE FEET * COMBINED SF OF BUILDINGS E AND F 15,0E HAY BALE BARRIER DIESEL FUEL STORAGE TANK INSTALL SILT FENCE OR STRAW WADDLE, AS APPROPRIATE FOR SURFACE CONDITIONS STORMWATER FLOW ARROW AREA DRAINS TO KING COUNTY SANITARY SEWER d 0 30 60 120 APPROXIMATE SCALE IN FEET Figure 4: Boundary & Planimetric Survey I F(;AL DFSCRIPTION PARCEL A. 1NAT PORTION DP NE JORI MOTET DWATON LAND CLAM PO 432 N SECTION 11, VAMP24 ,m RARE 1 (AST. eA(L.AAlA1q IRRMMI MART. ENG NTT. WAVENITN. DhCSIRFR AS PO1 OM.4)11Norm NEOMND 01 NE WEST LAN OF EAST W5ONN. NAY AT I15 PANT OF NER1E0110N ISM A LNE PARALLEL NM AN 1,491.0 FEET MPH OF 11E ERN ICE OF SAN WID 0.01 AID REIMO TENT ALOUD 1PE NEST NNE OF SAID EAST M A MAL MT NORM 23'4040' 1E51 562E fine MORE KIN 64'19'45' HEST 1MTN IEET; 74811E 90J74 Mr3'25" MT 43E70 MET; 74FMT SUM 06421(35' EAST 14552 Ent THENCE SOUTH 0919'25' MST HO FEET: MD1CL SOUDI OMFT5' LAST 11022 2SM THENCE SOUM E9110.5' NEST 85.43 MET, TO A POINT N 1PE EA31ERL1 UK 0 THE RONT-01-w0 OF CO EREM. TAMD0AY 10.. 1, AVOW AS GUM1115N MAMMY: MUMS SCUMLASltRLT AL0017 SAID EASTERLY LSE CFI A CURSE TO 11E ROIL NM A NMI 0 1,SMIi HST. FO A CHORD DIMMER 5071N 11(2112' EAST 114.E FEAT, 1PENGE M TN 69'A3'2' 031 MIN MT; TORT SCUM 0.2735' DM 1.00 Eat THENCE NWT MX'25' EAST '0.00 EEET, MUM OR LESS. A ENE PONT OF NEFAM00 (a1NG MOM A5 PIE 'USN ARMS M 90G1'). PARCEL R MAT PORTON EC JOIN ROONEY 50M*MN CLAN NO N. N SCION 33. TOMIMS. 24 NORM. ROMOE 4 EAST. *WOVE MOWN* N ENG ELARJIY, NASIMM I. Ri 140 0 MINT MOMSNC AT PE 14E43ECTDN Of ME SOUMMSTE4LY LSE OF EAST WMNAL RAY NO A ME (ME M0r74EMv UK OF S0EN0 AIRPLANE COWART PLANT 2) MEN 5 625 FEET SOUTHERLY R ANO P4R4Un. EDGE O AMERCE SAD 944 MPS( 008011E R 45R4AL1 P4RNNP W7 P06, 6 11N o4-M1P SP0R1 W913141M 49000 J a2 50'46'46"'N 1.DO' EDGE NON 9N'ISY4'r 1341.4E MUM TO MC NORTHERLY ME O SRO OWARN CLAM OWES ALONG 54I0 SDNONESIMI, UM OF EAST IWO. OAY, So1M 'J40'40 (051. 170 RUT, MORE OR IFSS, 10 4 CORER OF 11E NACT C MIN 0CECI NO N AM AMIE10, 10 174E DEPT 0 1NC MECO C*1R*GT K1NEEN TIE LIPATFU STATES 0 AMENG A40 ISAACSIN NONMVS AE-, DA1E0 MOST T. 1941 W0 MOM AS ONTACT 01095-015 TNT 5 RECORDED N WMAE 2392 OF DEEDS. PAGE 425. N FRIG CORM. NA5MN41CN. TENCE ALONG 114( 1E OF MD UST 4ENIPNED MET OF 1.1N0, THE FOLLONE S WAGES AND OSTANCEN NORM 11419'45' NEST MGM FEET TO A PUNT N A UNE 'MEAT IS PARALLEL TO MO 90D7 fEET SO)PER, OF 6ND NER KERI UM 0 SAD DONATION CLAM MONO SAID UNE PARALLEL'0 AND N]O.7 FEET SOUTHERLY OF SAID 40511ERL1 UNE Of SAD DONATION SEAM SUM M'.T'26' EES1 434.79 FEET; SCUM 07796. LAST 310.52 FEET: SUN WNW WEST 10D FEET: N0 90UTN 720.3' FAST SLUE FEET: 1MDNY 90FIN MAW REST M FEET. NW OR LESS TD A PONT N TM (4010+ 1 UNE Of ME MWT-OF-RAY OF CONIERCNL MEMOS PO 1. MIN A9 ON4M91 201[NWAY; 1KNR 40ME4911R, ALONG EAN CANERLY USE ON A CLONE TO NC MT ON A RADIUS CC I,RP91S FEET, 511 PELT, WORE M 165. 10 1NE N1P90CION a SAID CASlEMT W[ A10 1NE ATO,E M ENET LAB MC. 5 825 RE1 SGUMER, a AIL PARALLEL 10 RAID 407)0LY 161E C 9A0 4044*7 N CLAM: 114NR ALDIO 940 MOPE NEN110E0 LPE (EOM A100 N00 LIE AMPS WOWED SCAMINERY EYE of 060 AWPL9K CMANY PEW 21 MORN 1191f2S' OAST 1.30E Fat MORE CR LESS TO A PENT N MO SCUIMIEOTRLY LINE 0 EAST 141.0144. MAY AND PE PONT Of NE4SNNE. AMU _-/VTU- wT NOT MAS pT1 r ND.13 `NU.H 4591314'4 434.79' N0.2A N046 r ND.18 VI NE''4® H0.4o ID.2S WGNCNENT N CASE Aa N 23' LPG DDEN 17 ASPNAEI SET MA6 NNA4 -'LT- N/ MASHER DE, 1912' 05. N0.14 o.Iu LINEAR .15 NOD/ l L7A N0.21 �'L / ---UNPAVED n- gLWA (/ �01- CONCRETE NOTEi 1. HORIZONTAL OAPJW.. TAD 83/11 PER *SNOT. *mot mirp,94TAl MQ1,40Mi14T 4 2414 14P171Q4-1761 WAS HELD FOR POSIION, AND A LINE BETWEEN SAID YOIIU1E241 0 2818 AND MONUMENT 8) 2620 (CP17005-178) WAS NEW FOR ROTATION BEING NORTH 2527'41' WEST 2. VERTICAL DATUM: NAVD BB. PER *SOOT *LOOT VERTICAL CONTROL POINT MONUMENT ID 2618 (GA17005-176) WAS HELD FOR POSITION 0*040i 69.802' (N.4VU 88) 3. SITE BENCHMARK: MAG NAIL W/WASHER STAMPED 'TRUE NORTH CONTROL' N THE ASPHALT PARKING LOT NEAR 111E NORTHEAST CORNER OF THE MAIN BUILDING GNSITE. ELEJATION: 18.12 4. DATE OF SURVEY: JULY 27, 2020 S. EQUIPMENT USED: LUCA TS 12. 8. TOTAL AREA OF PROPERTY: 902,357 S0. FT, ± 5401314i 711. DZ )FGFND SEW314t 1751' PGUNOARY LINE - ••� �• R)GNI-OF-W4F UNE - - - CE7E7E0TJNE EDGE R CONCRETE EDGE Cif P44t77AE+T cwE OF GRAVEL BUILDING UNE B NQW4ENT /N CAS£ + 577E 17M (45 N07ID) VALE T DOI> 000 This survey was prepared for the Earl M. Jorgensen Company and their representatives as part of the Remedial Investigation of the Jorgensen Forge Property. The purpose of the survey was to document locations of belowground features and other features prior to being covered or removed. The data presented in the survey should be considered representative at the lime of our observations; however, no guarantee is made or knelled. The information in this survey Is exclusively for the use of and reliance by the Earle M. Jorgensen Company and their respective affiliates, repreeentatves, and agents. Reliance On this survey by turd parties is not authorized. \ FOUND 110101011 N CASE WY N 2.W LP 00U1 O9' 1L GRAPHIC SCALE MI NI M NIA ( EN PIM? ) SUMER JJRDAF DRAW JE mmo¢R EF REV ANNN 14401 NF.IIPmdbn TM. REMB4 aro7/20T0 747E BY 4P1T1 4TH1930 Oth Avenue South Suite 401 Seattle, WA 98134 LAND SURVEYING INC, 206.332.0800 DMe: 0a-12-2020 SENP: 1'=6V Book: J1743.05.dwg 8531 East Marginal Way South, Tukwila,WA Boundary & Planimetric Survey For Shannon & Wtson, Inc. PORTION OF THE OW 1n ISE1/4 OFTEEE MINIM OF 4EOTON33.T 2411.R 4 E,00.2E Job Number:4 17-43.05 Sheet 1 of 2 3D*VEVED JJR 1 AF DRAM: JE /3434D: EF Cross -Reference of Voult Names wlth SoundEarth's Identification Nome of Vault SoundEarth's Vault Nome SoundEarth's Number 070c. 1931499 M0W1n9 O4 051 0100. SAW. AWN W 1011 1 39144'5e. 56/so IA. WO. LI llol* Tank Viult O4t.00 M40r0a1V 011h9 F1uk Tank *All 2A Hawk. S5 LEWn. Will 11014W3r. 59 3 M1044.,00*3541.41 Mr.Ywe 31 We. I10 Y M M m 1644T I V M,.. a ,e AMOK WW2 JC 1t4W.914h WA 0001319WWWWWVY. 54 M*w0 n.4MNY Aiwa. 4 Ilpr W. II CAM WWM 2 TWO Att4F 8 9.m444 10Y019ww9M hullo P 9 WE VW 099 488.21 WE 10 MAW. 11 5•10wW411e V44 EM140,n 12 WO YM.l 2n.0.l09.129 09 VOW Oa.. ha 13 W. TAM, 1y013T01, 06.9 09 ia WKY4 .041NVII. 133 011480WVM,5.h04.4.364 IWM AM 0111a..O.M.Aw 14 MW4011r 0l14e89dm190A 14 61N OITAS WA 011949345•M461 IM 5•4801•WW3WWWww.. 79415.5093 41311W14F1Man.u/ I5 Wwol1.MWl10 4,. Wit 9WY AO... i6 .Y Nowisi O0.IM.. 4w Via if We VW 129061r6109 WA T404442224n 11476.4 ISA 12599n10. 121Ier 19 125079.9 Mmwx* 14EP49.604e4wn 19A 019 NVA..C.W40*NVn4 2601111 20 190509.4 VM 999AnW 21 M6Tnttr 15b.r1 22 061Y13rPMbm la, PAWL. Awn 224 t r PPr VW r191.M PM 0*70. 23 05851,6Puw15Y KIN 24 6r119115 1.11119491 25 3819.060V91 IWOP.. 26 t4e.Tw/N11rb, o 9901.hhc. 264 damF4WWGKV4s OMWIRYIW.dF6piMM 21 W445Fwwm Via 11w4181 26 A94W4V.Y WMe01..w49.MMM Two, . 26 294 902.0.040438 VMBw0.r1Ai 30 AOD1w60.k AM. 31 Art row VWW WIMw. 1.1WNew57 32 321 044I&1M WOWS NW O. 4114I_ 33 91004115 0u091WWWW Cw05TAw11N 34 NA. Vaunt 13mllfk4On Taws DEMO 00/01/2020 DATE Dr 4WD 1930 6th Avenue Souttt 1111.11 Suite 401 Seattle, WA 98134 LAND SURVEYING, IINC. 206.332.0800 Cross -Reference of Voult Names with SoundEurth's Identification Name of Vault SoundEarth's Vault Nome SoundEarth's Number '7,IAANIA9M TA Awn6Mr 35 10119148 401M N 36 AN SAW 4PNMt 31 ..9. Mew Pop Pit. 00 F1 Uri.. AI0rin.. 40 F3 Wave. HGar Su19 41 64 CAW.. Ai awe.. 42 F.1102M. 2110491.20 43 k1304 MN F.00r MR 44 keG.MN 1.9 Can MN 45 9310.1W115 F.11044‘M111 46 1310rMN 711049.19 11 AU OW. r FYu6,AW4 48 Ai Willa . 2310.w N 49 136 Or Va. 23594.59 53 M4Owlr. 114OrW/4 54 IWGar AsP 116Willa N 55 960.1159 .104950N SB *YW1WN 40Wt.. 51 M.00.80011 14110•9M. 59 F9449 WM MOW. Pi 59 14II4 i.. WI. MN 64 090*1700 Oh6*TW.291.101918e 0w 52 NrfwW firTUA.13r5erIN449 63 WW1Te.Ark166sca NM. Biwa 10229Y00 69M1919w 64 M.Pdj4WM..0400 80•13n001M NOMw. 55 INbM4sl. ner03.3 IRw0w Br0n.y19aM'6MOW PPW* s6 14w104019211 1wr01909401 /1 1191.45111.194.4 1142164101F91.L 61A 9.t Wnw1 PIE 33 W,I Gnaw. 203 619 1451740AWIE WM5IMow 6AMWI9w41p*6M0W1.44 10 W..ATr1100 49101991.1 11 W.Y,Aw BO; Oww1T441e 23 0WWh4OF0 043454 0 24 1k1.1w.P4hr4W WSW Cr19Tw1.B,W.Maw 75 19.1T0Y16Lab 4. tsM4W 16 Pw0A0m1W. AWWWWIh44W 77 AmorVI10We1M Willa T.9 I0r1W6W6w.0,r61w4 70 U. rept . IYkelp5.9 80 4000NM91 400 Cow. WM 7es Date: 08-12-2020 Scab: N/A Book: J1743.05.dwg This survey was prepared for the Earle M. Jorgensen Company and their representatives as pen of the Remedial Investigation of the Jorgensen Forge Property. The purpose of the survey was to document locations of betowground features and other features prior to being covered or removed. The data presented in the survey should be considered representative at the time of our observations; however, no guarantee is made or implied. The information in this survey is exclusively for the use of and reliance by the Earle M. Jorgensen Company and their respective affiliates, representatives, and agents. Reliance on this survey by third parties is not authorized. 8531 East Marginal Way South, Tukwila,WA Boundary & Planimetric Survey For Shannon & Wdson, Inc. POR11ON OF THE EW 14 6 SE 1/4 OF THE NW 14 OF EECTM3N3$ T 2A SLR 4 E. WM Job Number: 4 17-43.05 Sheet: 2 of 2 113H� Environmental . TC-24 TRANSFORMER ROOM Former Jorgensen Forge Facility 8531 East Marginal Way S Tukwila, WA, 98108 06-21-2020 Figure 5 i TC-24 Transformer Room View to the north showing the former Melt Shop Area. Transformer TC-24 is located on the 2ndfloor behind the window marked in yellow. Transformer oil also dripped through holes in the floor to the first floor directly beneath the TC-24 room. Image: Google Earth Pro 0 5 10 Approximate Scale in Feet I - �--- --- ---��----------------------------------- _a-- ♦ ♦ STORAGE MELT BAGHOUSE AIR PUMPS( TRUCK SCALE a ♦ BUILDING ELECTRICAL ROOM (INACTIVE) �. PARKING AREA OFFICE HEADQUARTERS (INACTIVE; _. e _ ♦ AI W (� ��'P�� ♦ ( V ® 0 _p • 550 GALLON pr DIESEL AST DIESEL FUELING ♦ AND USED OIL ♦ STORAGE BUILDING MELT BAGHOUSE J/ AA1t° 8 '�N HOLLOWBORE MACHINE 0 SHOP (INACTIVE) AND AREA p .6 d J� � Q 5 - ; ♦ CONTROL ROOM ♦ (INACTIVE) • -- MELT BAGHOUSE (INACTIVE) ♦TREATMENT ♦ EMPLOYEE OFFICES METAL— AND PARKING AREA STORAGE SHED (INACTIVE) PLANT ENGINEERING " (INACTIVE) 8 0 STORMWATER SEWER LIFT STATION MAINTENANCE OFFICE (INACTIVE) ���__ B - �' R 2 Igo III I a so B LII AUTO REPAIR HUMAN S r SHOP RESOURCES (INACTIVE BUILDING El 8 TOTE `STORAGE SHED 2 CENTER CO�JU �i o [� _ e. LABORATORY _._ I t ,:�F? ,._._., ./ - O O i ♦ O " (INACTIVE) so SD so so 1 INFLUENT PORT ESiC ..,_,' • SAMPLE ^ _ :,_ HEAT TREAT AREAIll *` LOWER CAPPED sr,m ... n (INACTIVEI EFFLUENT SAMPLE PORT so —a N \ DUWAMISH i 5D 6 a SD 6 6 SD L a ? P 4 ? sow O ALUMINUM , i WATERWAY ' so so so so O 133 MELT SHOP AREA FORGE SHOP AREA g HEAT TREAT BUILDING 7-2, o OUTFALL003 I MELT SHOP ♦ WAREHOUSE (INACTIVE) (INACTIVE) V P P 4 & (INACTIVE) INACTIVE I T -A..T T T� T CAPPED �— so ..... 5° SCRAP AND MAGNETIC BILLET AND SMTEOTAL0 MELT STEEL SLAG ` 0 AND MILL SCALE SCRAP STORAGE GRINDING STORAGE AREA (INACTIVE) STORAGE AREA BUILDING ♦ �A i INACTIVEI (INACTIVE) iINACTI\Ej ♦ y LEGEND NOTES: 1. STRUCTURES AND FEATURES SHOWN ON THIS FIGURE WERE NOT VERIFIED — - - — PROPERTY BOUNDARY SPILL KIT LOCATION GRAVEL SURFACE BY SURVEY BY SOUNDEARTH STRATEGIES INC. LOCATIONAL INFORMATION (PERVIOUS) HAS BEEN ADAPTED FROM APPENDIX C OF THE ENGINEERING REPORT -- -- eD — - STORMWATER DRAINAGE CONVEYANCE ® STORMWATER PUMP VAULT DRAFTED BY ANCHOR QEA, LLC. SANITARY SEWER SANITARY SEWER PIPE ® CATCH BASIN WITH SEDIMENT SOCK DRAINAGE AREA 2. TOTAL ACREAGE: 20 ACRES AND FLOW DIRECTION -PERVIOUS SURFACE) 1.6 ACRES STORMWATER o MANHOLE ECO-BLOCK BARRIER - IMPERVIOUS SURFACE: 18.4 ACRES FLOW ARROW DOWNSPOUT CONNECTION DATE 02/25/2020 DRAWN BY: JQC/AAE/EMF PROJECT NAME' JORGENSEN FORGE PROJECT NUMBER' 0995-02-02 REGION .... �, 0 30 60 120 240 FIGURE 6a CHECKED BY: JAC/LMK STREET ADDRESS 8531 EAST MARGINAL WAY SOUTH �jt� <<�bo- 'Eg±ES CAD FILE: 0995-002_2020_SWPPP_SITE CITY, STATE' SEATTLE, WASHINGTON pine ellm APPROXIMATE SCALE IN FEET SWPPP Site Ma www.souNDEARTHiNc.com a P:10995 JORGENSEN FORGE CORPORATION10995-002 JORGENSEN FORGE\TECHNICAL\CAO\STORMWATER1SWPPP \2020 SWPPP10995-02-02 2020 SWPPP CONV-MAP.DWG LEGEND RF RAILROAD uGP -- UNDERGROUND POWER LINE - H2O -- WATER LINE X FENCE LINE STORMDRAIN LINE MANHOLE STRUCTURE CATCH BASIN ROOF CONVEYANCE PLUGGED OR CAPPED FLOW DIRECTION OVERFLOW DIRECTION 0 o 4 OUTFALL 003 (ACTIVE) N BACKFLOW PREVENTION VALVE ,.1 CONCRETE PAD OUTFALL 002 (CAPPED) MELT SHOP WAREHOUSE (INACTIVE) x2 COVERED METAL SHAVING STORAGE (INACTIVE) MISC. MANHOLE RIM=17.87' STORMWATER PUMP VAULT UGP--.-.._-_ HPO - UG H2O -- - HOC] LOF L.OP -} HEO ---_ - HEO H2O HTC --_ J _ H'20 --- H2O 7 H2O ----_ H2O --- - H2O ---- �. H2O ----- H20 ---. N201-- MELT SHOP AREA (INACTIVE) UGP HSO -- - 0 l7/7/7 :T/7777/ 2.:71 /?,:,i; ASPHALT SURFACE STE CO` PI' n nii Strategies W WW.SOUNDFARTHING.COM DATE• 02/25/20 PROJECT NAME: JORGENSEN FORGE REGION. �� 0 15 30 60 FIGURE 6b STORMWATER TREATMENT SYSTEM CONVEYANCE MAP DRAWN BY: DHG/EMF PROJECT NUMBER: 0995-02-02 `1�vi� STREET ADDRESS: STATE: 8531 EAST MARGINAL WAY SOUTH SEATTLE, CHECKED BY' -ALS CAD FILE: ►���j� ! LfLyL APPROXIMATE SCALE IN FEET 0°95-02-02 2020_SWPPP_CONV-MAP CITY, WASHINGTON +e MEDIA VESSEL 1➢,000 lb ST4 ST3 i 10,50043AL CAPACITY / \ \ MOOD -GAL CAPACITY SAND FILTER INFLUENT SAMPLE PORT ST5 10.500-GAL CAPACITY MEDIA VESSEL 1 10,000 lb EFF PRESSURE -� TRANSDUCER \ INF PRESSURE —� TRANSDUCER ST2 10,500-GAL CAPACITY SAND FILTER SYSTEM MMFA SAMPLE PORT z BF1 10,500-GAL CAPACITY ST1 10,500-GAL CAPACITY CAPPED OVTC CONTROL UNIT O CONDUITS FOLLOW PIPE TO VAULT 4-20 mA signal 4-20 mA signal —1 PRESSURE - TRANSDUCER FOR FLOW INDICATION 13 _ WATER QUALITY CHARACTERIZATION SAMPLE PORT RAW STORMWATER WA TER QUALRY MONITORING SAMPLE TUBING -=88, MAN POWER STRIKE EFFLUENT SAMPLE PORT FROM CLEAN WATER J TO CLEANFROM CLEAN TANK RECIRC WATER TANKS WATER TANKS LEGEND LAh SAMPLE PORT -f� SWING CHECK VALVE PRESSURE REGULATING VALVE BUTTERFLY VALVE EXPANSION JOINT ( FLOW METER Q REDUCER BUSHING FLANGE CONNECTION PRESSURE TRANSDUCER ELECTRICAL LINE SAMPLE LINE PRESSURE TRANSDUCER LINE MMFA MULTI -MEDIA FILTRATION AND ADSORPTION ST SETTLING TANK BF SACKFLUSH TANK —"" FLOW DIRECTION MEDIA VESSEL INFLUENT BLUE MEDIA VESSEL EFFLUENT BROWN BACKFLUSH ?RANGE RECIRC CLEAR WATER THESE FABRICATION DESIGNS ARE PROPRIETARY AND CONFIDENTIAL. NO PART OF THESE DESIGNS MAY BE DISCLOSED IN ANY MANNER TO A THIRD PARTY WITHOUT PRIOR WRITTEN CONSENT OF CLEAR WATER SERVICES, LLC. JORGENSEN FORGE Stormwater Treatment System PLAN VIEW DATE REVISIONS Figure 7a 1 OF 2 DATE: 11/12/2020 !DESIGNER: CWS I FILE NAME: 18SES3_Equipment-Layout.dwg wax 0 m co N O O 0 G) z m c3 co -n m z M31A NVld Stormwater Retention Tanks 30210d NJSN302lOf TANK M1 TANK #22 ! TANK #23 TANK x24 TANK #25 TANK 6I TANK 412 9�C TANK #13 TANK #14 TANK #15 TANK x1 TANK x2 TANK #3 TANK #4 TANK #5 TANK #26 ! TANK #27 TANK#28 TANK #16 TANK #20 TANK #16 TANK #19 TANK #20 179r- 4 TANK#6 TANK#7 TANK#8 TANK#9 TANK#10 FROM TANKS #30-45 A+ TO FILL TANKS #30-45 FROM MMFA - EFFLUENT TO DIESEL -^ PUMP ANK #38 1 TANK 535 I TANK #40 TANK #41 TANK #42 TANK #43 ) TANK #44 TANK 045 TANK#30 TANK i?31 • 11"1L TANK #32 TANK #33 P TANK #34 TANK #35 J TANK #36 TANK #37 Attachment 1: Fill Specifications Letter Sound Strategies SoundEarth Strategies, Inc. 2811 Fairview Avenue East, Suite 2000 Seattle, Washington 98102 DATE: DECEMBER 2, 2019 SUBJECT: Specifications for Suppliers of Fill to the Star Forge LLC Facility The 1 1/4-inch minus crushed rock supplied for use at the Star Forge LLC Facility located at 8531 East Marginal Way South, Tukwila, Washington, must meet the requirements of "clean fill." "Clean fill" shall have no contaminant concentrations above the Preliminary Cleanup Levels (PCULs) as shown on the Washington State Department of Ecology's Lower Duwamish Waterway PCUL Workbook, Soil Summary page, Column F ("Most Stringent Soil PCUL Saturated Zone Nonpotable GW") which can be found as "Preliminary Cleanup Levels for the Lower Duwamish Waterway" dated April 5, 2019, at the following link: <https://apps.ecology.wa.gov/gsp/CleanupSiteDocuments.aspx?csid=1643>. Fill material will be tested for the following analytes: • Total polychlorinated biphenyls Aroclors • Gasoline-, diesel-, and oil -range total petroleum hydrocarbons • Volatile organic compounds • Semivolatile organic compounds • Heavy metals (arsenic, cadmium, chromium, copper, lead, mercury, nickel, selenium, silver, vanadium, zinc, and cobalt) In addition, fill shall be Select Borrow or Gravel Borrow, meeting the requirements of section 9-3.14(1) or 9-03.14(2) of the 2020 Washington State Department of Transportation Standard Specifications. if the chemical analytical results for the fill material can be provided, please send theresults to Mindy Graddon at <mgraddon@soundearthinc.com>. If this information is not available, SoundEarth will complete sampling and analysis of the fill material. Respectfully, SoundEarth Strategies, Inc. Tom Cammarata, LG, LHG Principal Geochemist ASW/TJC/MLG:hsb/rt/dnm www.soundearthinc.com 866.850.1900 "Always do right. This wilt gratify some people and astonish the rest." -Mark Twain Attachment 2 - Import Fill Sampling Plan SoundEarth Strategies. Inc. 2811 Fairview Avenue East. Suite 2000 Seattle, Washington 98102 Strategies WORK PLAN Fill Material Sampling Jorgensen Forge Property 8531 East Marginal Way South Tukwila, Washington 98108 SoundEarth Project No.: 0995-002 PURPOSE Date: December 6, 2019 Revised: February 17, 2020 The purpose of this work plan is to confirm and document the chemical composition of the fill material to be used at the above -referenced location in Tukwila, Washington, which is owned by Star Forge LLC, d/b/a Jorgensen Forge (Star Forge). The fill material will be analyzed for chemicals of concern identified in Column B of the Washington State Department of Ecology's (Ecology) Lower Duwamish Waterway Preliminary Cleanup Levels (PCULs) Workbook, Soil Summary page, which can be found as "Preliminary Cleanup Levels for the Lower Duwamish Waterway" dated April 5, 2019, at the following link: <https://a pps.ecology.wa.gov/gsp/Clea n u pSite Docu ments. as px?csi d=1643>. The results will be compared to Column F ("Most Stringent Soil PCUL Saturated Zone Nonpotable GW") of that same page. Analyses will be performed using the currently accepted applicable analytical methods for the chemicals of concern and utilize the lowest possible detection limits. Some PCULs are below the practical quantitation limit' and method detection limit.z For chemicals of concern that are reported as not detected but are above the PCUL, the Washington State Model Toxics Control Act Cleanup Regulation, Chapter 173-340 of the Washington Administrative Code, Publication No. 94-06, Revised November 2007, states that, "In some cases, cleanup levels calculated using the methods specified in this chapter are less than natural background levels or levels that .can reliably be measured. in those situations,the cleanup level shall be established at a concentration equal to the practical quantitation limit or natural background concentration, whichever is higher." The initial sampling for the fill material that will be used to fill the pits and vaults has been completed (the Initial Sampling). The Initial Sampling results have been compared to the PCULs and were found to be acceptable for this property and its location adjacent to the Lower Duwamish Waterway. Once approved, 1 "Practical Quantitation Limit means the lowest concentration that can reliably be measured within specific limits of precision, accuracy, representativeness, completeness, and comparability during routine laboratory operating conditions, using department approved methods." Defined by Ecology Publication No. 94-06, dated October 12, 2007. 2 "Method Detection Limit means the minimum concentration of a compound that can be measured and reported with ninety-nine percent (99%) confidence that the value is greater than zero." Defined by Ecology Publication No. 94-06, dated October 12, 2007. wum = rtolth,it olio rum Elbh.1.1g t90f1 ivom Fill Material Sampling Work Plan December 6, 2019 Revised february 17, 2020 fill material will be stockpiled on -site and tested in accordance with the following plan (the Additional Sampling). The contractor expects to use approximately up to 35,000 tons of fill material throughout the duration of the project. Approximately 10,000 tons of material will be initially be stockpiled on -site by the contractor; subsequent material will be delivered as needed. When approximately 10,000 tons of material have been delivered to the project site, SoundEarth will be notified by the contractor that fill material is available for Additional Sampling. Additional Sampling will be coordinated when additional fill material has been stockpiled at the project site. In the event analytical results indicate that chemicals of concern are present at unacceptably elevated concentrations, the contractor will be required to remove the fill material from the site and will source material from a different quarry. SCOPE OF FILL SAMPLING FIELD WORK Initial and Additional Sampling Events • Conduct tailgate and health and safety meeting. Collect signatures on Health and Safety Plan (HASP) from SoundEarth Strategies, Inc. staff and contractors. • Confirm approximate volume and location of stockpile and note on field map. • Confirm that sample containers include two 4-ounce jars and one 5035 kit per sample. • Collect discrete samples according to the Ecology stockpile sampling guidance.' Cubic Yards of Soil Number of Samples for Chemical Analysis 0-100 3 101-500 5 501-1,000 7 1,001-2,000 10 >2,000 10 + 1 for each additional 500 cubic yards • Submit samples for the following analyses: - Total polychlorinated biphenyls Aroclors by US Environmental Protection Agency (EPA) Method 8082A - Gasoline-, diesel-, and oil -range total petroleum hydrocarbons by Northwest Total Petroleum Hydrocarbon (NWTPH) Methods NWTPH-Gx and NWTPH-Dx - Volatile organic compounds by EPA Method 8260C - Semivolatile organic compounds by EPA Method 8270D SIM 3 Table 6.9 of the Washington Department of Ecology's June 2016 "Guidance for Remediation of Petroleum Contaminated Sites," available here: <https://fortress.wa.gov/ecy/publications/documents/1009057.pdf>, indicates the number of samples needed based on volume of material in a stockpile. __ _ SoundEarth Strategies, Inc. Page 12 P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-002-06 Permitting \2020 Updated SEPA Submittal \Ery Comment 5 attach - Fill sampling plan \0995-6R_Fill Sampling Work Plan_F_rkhmIg.docx Fill Material Sampling Work Plan December 6, 2019 Revised February 17, 2020 — Heavy metals (arsenic, cadmium, chromium, copper, lead, mercury, nickel, selenium, silver, vanadium, zinc, and cobalt) by EPA Methods 200.8/6020. • Label as SP01-1-YYYYMMDD for stockpile 01, sample number 1, and date. The next stockpile to be sampled would be labeled SP02-1-YYYYMMDD, and so on. • Submit samples for analysis to Friedman & Bruya, Inc. in Seattle, Washington. • Confirm the turnaround time with the Project Manager (Mindy Graddon). • Deliver daily field form package to Project Manager (Mindy Graddon). • Project Manager to provide results to Star Forge and CGI. EQUIPMENT AND SUPPLIES Field forms (HASP, daily Togs, field map) Personal protective equipment/health and safety equipment (hard hat, steel toe rubber boots, safety glasses, Nitrile gloves) Soil sampling kit _ Deionized water and Citranox Sample containers for soil samples, chains of custody, labels, and coolers Ice Ziplock bags, garbage bags LABORATORY Friedman & Bruya, Inc. Mike Erdahl or Eric Young 3012 16th Avenue West Seattle, Washington 98119 206-285-8282 FIELD DELIVERABLES • Daily field report • Daily HASP sign -in forms • Chain of custody • Boring logs • Well construction form • Drum inventory form • Drum inventory map • Purge forms • Personnel and field equipment expense reports SoundEarth Strategies, Inc. Page 13 P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-002-O6 Permitting \2020 Updated SEPA Submittal \Ecv Comment 5 attach - Fill sampling plan \0995-002Jill Sampling Work Plan_F_rkbmIg.dooc Attachment 3 - Cultural Resources Inadvertant Discovery Plan SoundEarth Strategies. Inc. 2811 Fairview Avenue East. Suite 2000 Seattle, Washington 98102 November 26, 2019 CULTURAL RESOURCES INADVERTENT DISCOVERY PLAN This Cultural Resources Inadvertent Discovery Plan details the steps to follow should the unanticipated discovery of cultural resources occur during ground disturbance by Star Forge staff, volunteers, contractors, or subcontractors. BACKGROUND The Puget Sound area has a rich cultural history, and archaeological sites in King County provide a record dating back over 12,000 years. Archaeological resources are material remains of past human life that are 50 years old or older. The ancestors of today's Duwamish, Muckleshoot, Puyallup, Snoqualmie, Stillaguamish, Suquamish, and Tulalip tribes (the Tribes) left behind the oldest archaeological materials in King County. Prehistoric -archaeological sites pre -date Euro-American settlement and include Native American artifacts of stone, shell, and wood, and human remains and grave goods. Historical archaeological sites post-date Euro-American settlement that began in 1850 in King County. Historical period archaeological sites come from historic occupation and use by native people, Euro-Americans, Americans, and other non -natives. Archaeological sites tell us about the history and prehistory of King County, as well as inform us about past fish and animal populations, climate, and how people responded to changes to them. Known archaeological sites are sites that are fisted in the Washington State Archaeological Site Inventory or that have been verified by a professional archaeologist and documented in some other way. Many archaeological sites have been disturbed over the past 160 years of development in King County. However, significant archaeological resources remain intact across King County and cultural materials are frequently discovered during ground -disturbing activities such as trenching, foundation excavation, grading, channel clearing, vegetation removal or planting, fence installation, and landscaping. These activities have the potential to destroy archaeological materials that may be present. Archaeological sites, both known and undiscovered, are protected by federal, state, and local laws, regulations, and codes. The specific cultural resources laws, regulations, and codes that apply to a project are determined by the project's regulatory context, which is based on permitting, funding, and land ownership. Federal laws include Section 106 of the National Historic Preservation Act and Section 4(f) of the Department of Transportation Act. State laws and regulations include RCW 43.21.C, RCW 27.53, RCW 27.44, Executive Order 05-05, and WAC 25-48. In particular, the Archaeological Sites and Resources Act (RCW 27.53) prohibits knowingly excavating or disturbing prehistoric and historical archaeological sites on public or private land without a state -issued excavation permit. The Indian Graves and Records Act (RCW 27.44) prohibits knowingly destroying American Indian graves and requires re -interment under supervision of the appropriate Indian Tribe following inadvertent disturbance. Local codes include King County Code 20.62.150, the Executive Procedures for Treatment of Cultural Resources (AEP LUD16-1), and the Tukwila Municipal Code 16.60.040 www.soundearthinc.corn 1 866.850.1900 r "Always do right. This will gratify some people and astonisi the rest." -Mark Twain Exhibit 4-H Cultural Resources Inadvertent Discovery Plan Most archaeological sites have not been recorded or even discovered because most land in King County has yet to be surveyed for cultural resources. So even if there is no known site in a given project area, it is still possible that the project will affect a previously unidentified archaeological site. EXPECTATIONS If project review determines there is little chance of encountering undisturbed archaeological materials, whether it be due to past known disturbance or Iandform history, then project work may proceed with no additional archaeological investigation. Even so, it is important that project field staff be on the lookout for indications of an archaeological site during planned ground disturbance and that they contact a professional archaeologist if potentially significant cultural materials are identified. Examples of potentially significant archaeological resources include (see Figures 1 through 4): • Artifacts in association with obvious changes in soil color and texture. • An area of charcoal or charcoal -stained soil, especially with concentrations of shells or bones. • Clearly prepared surfaces that suggest temporary stability, such as a corduroy road, a flat -lying layer of brick, or a plastered surface. • Arrowheads, stone tools, or concentrations of stone chips. • Large concentrations or dumps of historical bottles and cans, or other historical material that is older than 50 years in age. Note that old glass is usually thicker and a different color than modern beverage bottles, and old dumps typically do not contain plastic. • Human remains. • Old privies (outhouses). • Buried fire pits or ovens. • Buried foundations or intact wall segments. • Clusters of animal bones associated with burned rocks or stone tools or chips. • Fragments of basketry, cordage, nets, or traps made of wood or bark. • Fire -darkened or fire -reddened rocks that are usually broken and may be associated with fire - reddened layers of soil. • Constructed grades, especially railroad grades with rails, ties, trestles, and bridges. Examples of cultural materials that are probably not culturally significant include: • Pilings without attached structural wood materials. • Fragments of asphalt and concrete or loose bricks or concrete footings in the fill. • Broken glass fragments or scattered pieces of broken ceramics. • Scattered metal items in the fill. • Concentrations of coal, cinders, lumber, wood debris, or sawdust without associated artifacts. SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-002-06 Permitting \DAHP Comment and Response \0995-002-06_Oiscovery Plan F.docx Page 12 Exhibit 4-H Cultural Resources Inadvertent Discovery Plan When a cultural resource is first identified, the extent and boundaries of the cultural deposit or artifacts are not usually fully known. In such cases, a professional archaeological survey may be required before decisions about next steps can be made. If an archaeological site will be affected by a project, then the Washington State Department of Archaeology and Historic Preservation (DAHP) may recommend that the cultural materials be avoided by altering the project design. Alternatively, DAHP may ask for help to support further cultural resources assessment and investigation by a professional archaeologist in order to evaluate the significance of the find. If significant cultural resources are indeed present and adverse effects cannot be avoided, then cultural resources mitigation may be necessary. Treatment of identified archaeological resources would be determined through consultation among King County Historic Preservation Program (KCHPP), DAHP, and the Tribes. INADVERTENT DISCOVERY PLAN The following provisions will be followed if construction or other ground -disturbing activities cause disturbance to buried cultural resources: 1. If any Star Forge employee, contractor, or subcontractor believes that he or she has uncovered any cultural resource at any point in the project, all work within at least 30 feet of the discovery shall cease. The Star Project Manager will immediately notify a professional archaeologist (either a King County staff archaeologist or a contracted consulting archaeologist, referred to hereafter as the Project Archaeologist) who will determine whether a potentially significant cultural resource was encountered. 2. If the Project Archaeologist determines that a potentially significant cultural resources was encountered or if the finding is unclear, then the Project Archaeologist will notify the designated Project Manager, as well as immediately contact DAHP and KCHPP to report the unanticipated discovery of cultural resources. All cultural material will be treated as potentially eligible for listing in the National Register of Historic Places (NRHP) until further investigation and evaluation is complete. Following notification of DAHP and KCHPP, the Project Archaeologist will notify any affected tribal governments. The Project Archaeologist will work with DAHP to determine which tribe(s) should be consulted. 3. The designated Project Manager will take appropriate steps to protect the discovery in order to protect the site's integrity. For example, vehicles, equipment, and unauthorized personnel will not be permitted to traverse the discovery site, and overnight protection may be required. The discovery vicinity will continue to be protected until the appropriate course of action is decided upon through consultation and treatment of the discovery is complete. All communications between the project staff and any agency about cultural resource issues will go through the Project Archaeologist. 4. Project ground disturbance may continue beyond the discovery area if additional effects to the cultural resource are not anticipated. Continued demolition activities will be conducted to the extent that no additional impacts to cultural resources should take place. The total area of work stoppage will be adequate to provide for the security, protection, and integrity of the discovery in accordance with state laws and regulations regarding cultural resources. Ground disturbance may continue elsewhere in the project area while documentation and assessment of the cultural resource proceeds. Ground disturbance at the discovery may only resume after DAHP formally notifies Star Forge that treatment is complete. SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-002-06 Permitting \DAMP Comment and Response\0995-002-06_Discovery Plan_F.docx Page 13 Exhibit 4-H Cultural Resources Inadvertent Discovery Plan 5. Routine documentation of newly discovered cultural material should not impact construction schedules. Where complex or extensive cultural remains are encountered, the designated Project Manager, Project Archaeologist, KCHPP, and other involved qualified archaeological personnel will determine the appropriate level of cultural resources documentation and treatment of the resource after consultation with DAHP and representatives of affected tribal governments. 6. All prehistoric and/or historical cultural material discovered during project ground disturbance will be recorded by a Professional Archaeologist on a Washington State Site Inventory Form using standard techniques. Site overviews, features, and artifacts will be photographed. Stratigraphic profiles and soil/sediment descriptions will be prepared for any subsurface exposures. Discovery locations will be documented on scaled site plans and site location maps. No subsurface excavations into the site will occur and no artifacts will be collected prior to the Project Archaeologist obtaining a state -issued excavation permit. 7. Cultural features, horizons, and artifacts detected in buried sediments may require further evaluation using hand -dug test units to clarify aspects of integrity, stratigraphic context, or feature function. Test units may be excavated in controlled fashion to expose features; collect radiocarbon, floral, or faunal samples; or interpret stratigraphy in undisturbed contexts. A test unit might also be used to bisect a feature or to determine if an intact occupation surface is present. Test units will be used only when necessary to gather information on the nature, extent, and integrity of subsurface cultural deposits to evaluate the site's potential to address significant research domains. Excavations will be conducted using professionally accepted techniques for controlling provenience of recovered materials. Testing an archaeological site in this manner may require a state -issued excavation permit or an approved work plan, depending on the project's regulatory context. 8. Soil excavated for purposes of cultural resources investigation will be screened through 1/4-inch mesh. Spatial information, depth of excavation levels, natural and cultural stratigraphy, presence or absence of cultural material, and depth to sterile soil, regolith, or bedrock will be recorded on a standard form. Test excavation units will be recorded on unit level forms, which include plan maps for each excavated level, and material type, number, and vertical provenience (depth below surface and stratum association where applicable) for all artifacts recovered from the level. Radiocarbon and macrofossil samples will be taken from intact subsurface features exposed by shovel/auger probes or test units. A stratigraphic profile will be drawn for at least one wall of each test excavation unit. All prehistoric and/or historical artifacts collected from the surface or from probes and test units will be analyzed, cataloged, and temporarily curated by King County. Ultimate disposition of cultural materials will be determined in consultation with the designated Project Manager, KCHPP, DAHP, and the affected tribe(s). 9. Within 90 days of concluding fieldwork, the Project Archaeologist will prepare a summary describing any and all archaeological investigation associated with the unanticipated discovery. Copies of the summary report will be submitted to KCHPP, DAHP, and the affected tribe(s) for review. The report may recommend mitigation if site testing shows that the archaeological site is eligible for listing in the NRHP. Mitigation could be required if the project cannot avoid further negative impacts to the cultural resource. Mitigation steps would be determined through consultation with the designated Project Manager, KCHPP, DAHP, and the affected tribe(s). SoundEarth Strategies, Inc. P;\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-002-0S Permitting DAHP Comment and Response \0995-002-06_Oiscovery Plan_F,docx Page 1 4 Exhibit 4-H Cultural Resources inadvertent Discovery Plan HUMAN REMAINS Additional steps are required if the unanticipated discovery includes human remains. Buried human remains can include purposeful burials, any skeletal part of a human body, or goods included in a grave regardless of ethnic origin. Any identified human skeletal remains will be treated with dignity and respect at all times. Should construction or other ground -disturbing activities cause disturbance to human remains the following provisions will be followed: 1. If an employee of Star Forge, contractor, or subcontractor discovers human remains, then all work within at least 50 feet of the discovery will stop to provide for the total security, protection, and integrity of the human skeletal remains in accordance with Washington State law. No persons other than the proper law enforcement personnel, qualified professional archaeologists, and DAHP staff will be authorized direct access to the discovery location after the area is secured. Nobody else should touch or photograph the remains. The designated Project Manager will prioritize securing the discovery area. 2. The designated Project Manager will immediately call local law enforcement. The local law enforcement official may arrange for a representative of the King County Medical Examiner's office to examine the discovery. The King County Medical Examiner and local law enforcement official will determine whether the human remains should be treated as a crime scene or an archaeological site. After contacting local law enforcement, the designated Project Manager will also notify the Project Archaeologist and KCHPP. 3. If the King County Medical Examiner determines that the human remains should be treated as a crime scene, then the police will take jurisdiction over the remains. If the King County Medical Examiner determines that the remains are non -forensic, then DAHP will take jurisdiction over the remains. A non -forensic .burial is a historical period Euro-American burial or a burial of Native American ancestry. 4. If the remains are non -forensic, then the State Physical Anthropologist will make a determination if the remains are Native American or non —Native American. The ethnic origin, or ancestry, of the discovered human remains will be determined through consultation with DAHP, the Project Archaeologist, KCHPP, and the affected tribe(s). Treatment as to the future preservation, excavation, and disposition of the remains will also be decided upon through consultation. Tribal access to the human remains will be allowed when the affected tribe(s) representative(s) are designated. Coordination for tribal member access must go through the designated tribal representative. The strict control of a burial location is mandated to ensure the safety and integrity of the burial feature and remains. 5. No Native American human remains will be removed from a site without the explicit consent and concurrence of the affected tribe(s) and DAHP. If disinterment of Native American human remains becomes necessary, then the consulting parties will jointly determine the final custodian of the human skeletal remains for re -interment. 6. Within 30 days of final treatment of human remains, the Project Archaeologist will prepare a summary describing any and all archaeological investigation associated with the unanticipated discovery, as well as the chain of custody and details on the final disposition of the remains. Copies of the summary report will be submitted to KCHPP, DAHP, and the affected tribe(s) for review. SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \, Deliverables \0995-002-06 Permitting DAHP Comment and Response\0995-002-06_Discovery Plan_F.doa Page 1 5 Exhibit 4-H Cultural Resources Inadvertent Discovery Plan CONFIDENTIALITY Archaeological sites where cultural resources are discovered can become targets of vandalism and illegal removal activities. Archaeological sites have been destroyed by artifact collectors or curious visitors, so site locations are not made public. Property owners and agencies with a need to know can be told about site locations on their property. DAHP and KCHPP maintain archaeological site databases and can share sensitive site location information with appropriate parties. Otherwise, personnel from Star Forge, volunteers, contractors, and subcontractors shall keep and maintain all information regarding any discovered archaeological resources as confidential, especially the discovery of human remains. Information such as maps, records, or other information identifying the location of archaeological sites, historic sites, artifacts, or the site of traditional, ceremonial, or social uses and activities of Indian Tribes is exempt from public disclosure consistent with state law (RCW 42.56.3001. Personnel from Star Forge, volunteers, contractors, and subcontractors should not contact the media or share information regarding a discovery on social media without consent. If needed, the Project Archaeologist can brief staff, volunteers, and contractors on the procedures to follow should potentially significant cultural resources be discovered. STATE AND LOCL GOVERNMENT CONTACTS Washington State Department of Archaeology and Historic Preservation (DAHP) Stephanie Jolivette, DAHP Local Government Archaeologist (360) 586-3088 (office) (360) 628-2755 (cell) Gretchen.Kaehler@dahp.wa.gov Guy Tasa, DAHP State Physical Anthropologist (360) 586-3534 (office) (360) 790-1633 (cell) Guy.Tasa@dahp.wa.gov King County, Washington King County Medical Examiner (206) 731-3232 King County Sheriff (206) 296-4155 (direct) (206) 296-3311 (office non -emergency) Philippe LeTourneau, KCHPP Archaeologist (206) 477-4529 philippe.letourneau@kingcounty.gov SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-002-06 Permitting \DAHP Comment and Response \0995-002-06_Discovery Plan_F.docx Page 16 Exhibit 4-H Cultural Resources Inadvertent Discovery Plan TRIBAL CONTACTS Muckleshoot Indian Tribe Laura Murphy, Archaeologist, Cultural Resources Muckleshoot Indian Tribe 39015 172nd Avenue Southeast Auburn, Washington 98092 P/ 253-876-3272 larua.murphy@muckleshoot.nsn.us Tulalip Tribes Richard Young, Cultural Resources Tulalip Tribes Hibulb Cultural Center & Natural History Preserve 6410 23rd Avenue Northeast Tulalip, Washington 98271 P/ 360-716-2652 C/ 425-239-0182 ryoung@tulaliptribes-nsn.gov Snoqualmie Tribe Steve Mullen -Moses, Director Snoqualmie Tribe Archaeology and Historic Preservation 9571 Ethan Wade Way Southeast Snoqualmie, Washington 98065 P/ 425-495-6097 steve@snoqualmietribe.us cc: Adam Osbekoff, Assistant Director P/ 425-292-0249 adam@snoqualmietribe.us Puyallup Tribe of Indians Brandon Reynon, Cultural Resources Puyallup Tribe of Indians 3009 East Portland Avenue Tacoma, Washington 98404 P/ 253-573-7986 brandon.reynon@puyalluptribe.com Stillaguamish Tribe of Indians Kerry Lyste, THPO 3310 Smokey Point Drive P.O. Box 277 Arlington, Washington 98223-0277 P/ 360-652-7362 klyste@stillaguamish.com SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-002-06 Permitting\DAHP Comment and Response\ 0995-002-06_Discovery Plan_F.docx Page 7 Exhibit 4-H Cultural Resources Inadvertent Discovery Plan Suquamish Tribe Dennis Lewarch, THPO Suquamish Tribe P.O. Box 498 Suquamish, Washington 98392-0498 P/ 360-394-8529 dlewarch@Suquamish.nsn.us Duwamish Tribe (For Public Outreach) Cecile Hanson, Tribal Chairwomen P/ 206-431-1582 cecile@duwamishtribe.org SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-002-06 Permitting \DAHP Comment and Response\ 0995-002-06_Discovery Plan F.docx Page 1 8 Exhibit 4-H Cultural Resources Inadvertent Discovery Plan Figure 1. Examples of potentially significant pre -contact period cultural materials: (A) Iithic cores; (B) oven; (C) shell midden; and (D) projectile points. SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation\0995-002 Jorgensen Forge \ Deliverables \0995-002-06 Permitting\DAHP Comment and Response \0995-002-06_Discovery Plan F.doo Phge 9 Exhibit 4-H Cultural Resources Inadvertent Discovery Plan Figure 2. Other examples of prehistoric period cultural materials: (A) bone tools; (B) basket; and (C) flakes and stone tools. SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-002-06 Permitting \OAHP Comment and Response \0995-002-06_Oiscovery Plan_F.docx Page 110 Exhibit 4-H Cultural Resources Inadvertent Discovery Plan Figure 3. Examples of potentially significant historical cultural materials that may be within the fill in the project area: (a) riveted chimney pipe and riveted oven in trench wall; (b) historic debris layer; (c) two-tier lumber supporting a brick wall in ruin; and (d) wood plank floor. SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-002-06 Permitting \DAMP Comment and Response\0995-002-06_Discovery Plan_F.docx Page 111 Exhibit 4-H Cultural Resources Inadvertent Discovery Plan Figure 4. Other examples of historical period cultural materials: (A) bottles, metal, and other residential items; (B) historical dump; and (C) old railroad grade. SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-002-06 Permitting\DAHP Comment and Response \0995-002-06_Discavery Plan_F.doca Page 112 Attachment 4 - Cultural Resources Historic Bld Mitigation Plan SoundEarth Strategies, Inc. 2811 Fairview Avenue East, Suite 2000 Seattle, Washington 98102 Strategies November 27, 2019 Ms. Holly Borth Department of Archaeology and Historic Preservation P.O. Box 48343 Olympia, Washington 98504-8343 SUBJECT: STAR FORGE, LLC HISTORIC BUILDING MITIGATION PLAN DHAP Project Tracking Code: 2019-10-08126 Dear Ms. Borth: SoundEarth Strategies, Inc. has been engaged by Star Forge, LLC to coordinate permitting efforts for the proposed demolition of the buildings on the property located at 8531 East Marginal Way South, Tukwila, Washington 98108 ("the Property"). The Cultural Resources Assessment ("CRA") for the Property was prepared by Perteet Inc., dated October 28, 2019, and it was uploaded on November 1, 2019, to Wisaard. The CRA identified two of the buildings at the Property (Plant Two and the Power House) as recommended eligible for the National Register of Historic Places. The Department of Archaeology and Historic Preservation also suggested that the Office Administration building has historical associations. Star Forge, LLC has agreed to the following mitigation measures to preserve the historic details of these three buildings prior to demolition. Compile and deliver the following historic information to the Tukwila Historical Society for preservation and possible public display in the future: • Over 120 digital photos of the three above -referenced buildings; and • Digital scans of the available as -built drawings for the buildings. An FTP site has been established so Department of Archaeology and Historic Preservation staff can review these materials. All available building photos and as -built drawings are being made available on the FTP site. The FTP link iscan be found here: <https://soundearth.egnyte.com/fl/MiWW0O13Hx>. Commission Historylink to prepare and publish a featured article on HistoryLink.org. Please feel free to reach out to me if you require any additional information or would like to discuss the project. www.soundearthinc.com 866.850.1900 i "Always do tight. This wilt gladly some people and astonish the rest." Mark Twain Exhibit 6-H Department of Archeology and Historic Preservation November 27, 2019 Respectfully, SoundEarth Strategies, Inc. -444, Mindy Graddon Associate Geologist cc: James Robertson, Star Forge, LLC Richard Allan, Marten Law Lynn Miranda, City of Tukwila MLG/ASW:cms SoundEarth Strategies, Inc. \\h\sescurrentprojects\0995 Jorgensen Forge Corporation \0995.002 Jorgensen Forge \ Deliverables \0995-002-06 Permitting \DAHP Comment and Response \0995-002_DAHP Historic Buii!ding_F.docx Page 1 2 Attachment 2 Support of Correction Letter #1 Development Permit Application Number D19-0311 FINAL ATTACHMENT Al SUPPORT OF CORRECTION LETTER #1 PERMIT APPLICATION NUMBER D19-0311 PREPARED BY HARRIS GROUP, DATED OCTOBER 22, 2019 SoundEarth Strategies, Inc. Harris Group October 22, 2019 Annika Wallendahl, PE, LG, MBA SoundEarth Strategies 2811 Fairview Ave East, Suite 2000 Seattle, WA 98102 Reference: P002073.00 SoundEarth Jorgenson Site Demo Support Star Forge Facility Demolition Project Support of Correction Letter #1 Development Permit Application Number D19-0311 Project Address: 8531 E Marginal Way South, Tukwila, Washington Dear Annika Wallendahl, This letter is provided in support of the Star Forge Facility Demolition project at 8531 E Marginal Way South, Tukwila, Washington. We understand approximately 16 buildings will be demolished, and a number of existing foundations and concrete lined equipment vaults or "pits" in the basement area are to remain in -place. This letter specifies the backfill, compaction, and special inspection requirements for the basement pits. These recommendations are contingent on the approval of the building official to perform work without a geotechnical report. In accordance with the Tukwila Municipal Code 16.54.060 and Appendix J of the 2015 International Building Code (IBC), suitable fill material for the abandoned pits includes imported Select Borrow or Gravel Borrow meeting the requirements of section 9-3.14(1) or 9-03.14(2) of the 2020 WSDOT Standard Specifications. 1 1/4 inch minus crushed rock would also be considered a suitable fill material. All fill material should be moisture conditioned (as necessary), placed in loose uniform lifts not to exceed 12 inches, and compacted to a minimum of 95 percent of its maximum dry density as determined by ASTM D1557 (modified proctor test method). These recommendations are consistent with generally accepted site backfill practices in this area of Washington State. Prior to backfilling activities, the existing concrete pits shall be cleared of all organic and non -suitable material. All pit concrete surfaces to receive backfill material shall be sound and intact; backfill shall not be placed over loose or broken concrete without proper preparation. Special Inspections and testing are required for the backfilling activities. The owner shall employ all special inspection and required material testing services. Special inspection and testing services shall be provided by an approved agency, regularly engaged in performing special inspection and testing services and approved by the local building official. Special inspections, tests, and reporting shall be performed in accordance with chapter 17 of the IBC. Our difference is engineered. 2601 4th Avenue Suite 400 Seattle, WA 98121 (206) 494-9400 www.harrisaroup.com Harris Group Required special inspection and tests: 1. Perform classification and testing of compacted fill materials (periodic special inspection). 2. Verify use of proper materials, densities, and lift thicknesses during placement and compaction of compacted fill (continuous special inspection). 3. Prior to placement of compacted fill, inspect existing concrete pit floor and verify any organic and non -suitable materials have been removed (periodic special inspection). We understand the pits will be covered by an impervious surface at the completion of the backfilling activities. The design of the impervious surface covering, any pit lining, evaluation and/or remediation of contaminated material, or alterations including any concrete pit removal or repair are outside of Harris Group scope. Currently, we are unaware of the future planned use of this site. These backfill recommendations are consistent with generally accepted site backfill practices in this area of Washington State. Future site development features such as roadways or buildings that may be supported by backfill will require a geotechnical investigation complete with recommendations specific to the future planned development. Alternative backfill materials and techniques may be considered to improve schedule and/or reduce construction costs; evaluation and/or recommendations of alternates should be provided by a geotechnical engineer. Sincerely, Sean M. Duffy, PE, SE Structural Engineer cc: Leo Cosgrove, Jeff Ross, File Our difference is engineered. Attachment 3 Demolition Plan Approval Email Dated March 1, 2021 from Maureen Sanchez, Dept of Ecology From: Son hQ7 Miu1r n (FSYj To: David Hill Cc: Nancy Eklund; Kari Sand; Richard H. Allan; Bradley M. Marten; Daniel Flores; Dennis Smith; Stephen Busby; Cardona-Marek. Tamara (ECYZ; Level. John A (ATG); Snyder. Erik (ECY); Harvey, Katy (ECY1; Warren. Bob (ECYl Subject: RE: Former Jorgensen Forge facility - Ecology Comments Date: Monday, March 01, 2021 2:57:46 PM Hi David, Yes, that is correct. We have no further comments on the Demolition Plan as submitted to Ecology by you by email on February 12, 2021. Mat cr?etA, s vn,ciez LDW Site Manager 4251649-7254 CeII 425/240-0454 All of Ecology's offices are closed to walk-in service. However, we are still operating. You can contact me by sending me an email or leaving me a voicemail on my desk number (your message will be forwarded to email). You may call my work cell, but I prefer you leave a message on my desk phone, so 1 can prepare for our call (and so you don't have to hear my busy household). To request copies of Ecology records, visit the public Records Request Center. From: David Hill <davehill@dhenviro.com> Sent: Monday, March 1, 2021 1:02 PM To: Sanchez, Maureen (ECY) <MASA461@ECY.WA.GOV> Cc: Nancy Eklund <Nancy.Eklund@TukwilaWA.gov>; Kari Sand <Kari.Sand@TukwilaWA.gov>; Richard H. Allan <rallan@martenlaw.com>; Bradley M. Marten <bmarten@marten!aw.com>; Daniel Flores <dflores@goldentree.com>; Dennis Smith <dsmith@ce-starllc.com>; Stephen Busby <sbusby@ce- starllc.com> Subject: Former Jorgensen Forge facility - Ecology Comments THIS EMAIL ORIGINATED FROM OUTSIDE THE WASHINGTON STATE EMAIL SYSTEM - Take caution not to open attachments or links unless you know the sender AND were expecting the attachment or the link Hello Maureen, Can you confirm that Ecology has no further comments on the Former Jorgensen Forge Demolition Plan? Assuming you have no further comments, we will submit the plan, as amended, to the City this week as Version 02. Thank you! David J. Hill, PE, CHMM, CPEA Principal DH Environmental, Inc. Phone: (206) 293-3126 Email: davehillOdhenviro.com www.dhenviro.com Attachment 4 Utilities Locate Maps 10/23/2019 Pa0995 JORGENSEN FORGE CORPORATION10995-002 JORGENSEN FORGE \TECHNICAL \CAD\201910995-002-06 UT.DWG 773 1 TITLE DESCRIPTION HAi PORTION OF THE JOHN WbtLEY DONATION TAND CLAIM NO 621N.CTION O0, TOWNSHa 24 NORTH. RANGE 4 EAST. WILLAMETTE M.D. IN KIND COMM W.HIGTON, OESCRIREO AS PCAL.5 GEC. NNI•O M THE WEST LINE OF EAST M AUNA. WAY AT ITS PORT OF WTERSECTION WITH A LNL PARALLEL WITH AND 1.9 SOIITH.THE NORTH LO, Or SAID LAND CLAM AND RUNSMOTNE.vCE ALONG THE WEST LINE... EAST LINE NATIONAL WAY NORM ia'.ro'<ry WEST 5Va DI FEET, T.NCE NORTH MINT. INEST El TROPE, E ENCE ROUTE TROPEST nM TEPEET BET.. THENCE SOUTH 1.1.2•EAES. 52FEE, THENCE SCAMP MT`T910' 057 00 *2 FTET: TTMLEGE SOUTH O'202S EAST M et P'EL.: P.NCRSOUTH N✓3YB5•MT.OT...A1 N .V .. NTHE ..FAY( ,♦L&E OF THE RIGHYHN-WAY OP ET137000 JY"iMU 7EASTFPLYMONO SAID EA91E.NLr LINE ON A CURVE TOTH£ RIOT, WITH A RMIu30F TRW II>TF0T. FOR A LI0R OISTANCF SOUTH Ir2127 PAST 1i1,40 FEEF, uv.k. 1 EEx E WITH EAST 1.0 REEL THENCE NOR A 3a^.'EA5T MO DO FEETPhOR6 OP tr36. TO tH6 PONT OF 7E0•NNINC, (11.0 KNOWN 05 ME-U S.N. NOBS 21 TRACT). RAKE, Er !NAT VOID. YASI wAAIN 000l007;000UNTY WASHMGIDNBUL'11105 DAS OLTOWNS. LOWS, .11.IL✓K6 4 6E01m 1M AT 11:£ :NIERBECIIUN OP THE 9011114W08TERLY LINE M7 E0ST MARGINAL WAY AND ALOE MID BTHERLY LINE OF SOONG MIPLANL COMPANY PWMLANT 21 M IM1 OAS PEET SOUTHERLY OF AND pLLEL To THE GRHERLY LINE OF aAN DONATION CLAIM: ENCE ALONG SAID SOUTHWESTER, ME OP PAST WAY. aOiM2,'eT..21, OR SEPT. RE OR LESS, TO A CORNER OP DIE MAROPUL DIE TRACT OF LAND DE.N:RLDEU IN AN APPEND. TOT 2 COPT OF IHfi AUt.9000NTPACIBETWEEN THE VNTTEO STA.E3 OPA 00. AND ISAACSON IRON.R10.1G.. OA GUST 7, 800 AND KNOWN AS CONTRACT NOBASS NOT IS RECORDED IN VOLUME 25, N DEEDS, PAGE PyEIOO. COUNTY. WASHINGTON, 1MCEEC. TM LINE Or SAME. MENTIONED TRACT OF LAND. 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'n d0TermInf:yloeunon Ind 10. Pmralow.1014:Y Osman. Po. WMOmcd by The ww0r« to be In.fka111nw,0KMUro k a1... to I.furnwWxl 1 •na,IPM. 8 ZONING INFORMATION) S1E, 70,705CT1JN ZONING .w (Meru nabe1 'NMaAHmvy) SETBACKS MONT -l0' SIDE r own REAR 4 Nana HERM', t15' BULK - No reaulm ralrl nmm lone 1140O0K0 owrR omouirrnl xtsd pwx'fry r:m 1 Eon. owlMB 6p fl kmod.liar area All #Ie Inehieons Wem M.o.. Of GGG52w4nq ftSyaN, Y.nitN AryRT a, 2019 10 BASIS OF BEARING ) THE REARINOS ARE BASED ON R Or THE EOLITH LINE OFPARCEL "A'ASON DESCRIBE° IN STATUTORY WARRANTY DEED RECORDED AT RECEPTION N0 920522.1.1 RECORDS OF KING COUNTY STATE OP WASHINGTON, SAID LINE BEING MONI,MENTFU AS SHOWN HEREON AND \REARING 290'ASDdhv / 12 PARKING INFORMATION 7S9 77 703 9tnn0•M S1 6 1 2 S0,p*O HCMROP 5peus 4 101 TUN Sbiym P1M0 S0 2 TITLE INFORMATION ) ine Ttk CrulpmT Amf 80M0340 B Mm0 nm,M an. OPT FRI Arne., TON Insurimee Comp.,, Commimwrt •10204701252.wA3, Third Nsyon, Donn Se...), 2010, 5 FLOOD INFORMATION ) By TERM. D.. only. too PopmY 11reten m ono OM°TOR EN. Munn. R.Mnp Cmmrw4NPx,HOW a3070000UC0840P ANOfbeen tin 3ecbonve d8a M.IE. IRS!, and is NOT ma epM01 So *40A.1•n ann. Na nob ...vino was rmrManone.,Ieratkm melybn nee0eam vaeymn 0aennN4m anppy fur . Amer.,. Mafon.ra E:N0D.rx7 Rosier Minos. on.*00:m Rn ROD INOrh4M NM. ,r,-ISLE a'YNL"-eze i".�.iAvE.,drw ; 9 LEGEND (0 STORM ORAN GRATE CO SEWER MANHOLE O UDR/ POLE nT SRC HYDRANT WATER VALVE ® S1OR.M CPAN MM0HOL£ • BOLLARD (M) MEAYJRE0 (o) OEESED 3U.NO) UNLESS NOSED O7HE0A'6E As AS ROUND EH BEECN10 n,0.O.) LLI CONCRETE BIKE RACK • HANOCAP7£D RM..) ITN ELECT RC POLE -- DI OVERe7F00 ELECTRIC LINE '0 OUT WIRE ANCHOR PROPERTY LINE STORM LINE RATER ONE ---x - FENCE \ - SIGN OD TELEPHONE PEDESTAL ELEClRICA.L BOK * WATER ...CAE m) UNKNOWN MANHOLE IiQJ ELECTRIC PEDESTAL aul TELEPHONE 1/AIt1 EDI''IWATER METER ER3 RISER ® CLEANON • SET 95 ROAR 24' LO51 WITH GREEN PLASTC CAP sAMPEO 'PL5 45153- (O.N.O.) ELECTRICAL VAULT OAS METER Q HEIGHT 'MEN -as PANI1AR+ SEWER GAS LINE ---AARA1kOAD 14 BUILDING AREA ) 00103O NI NTlveim 2Ba.4a0 mover feel BuNding P'2 con.. ANTS s0uoru Ixl BNMAy 43 wnls . B3 Forme. Ins A.019 sotto'. ROM, RS col... 129 solve feel OUSauy PO contains 827 puma Not RM., cnnk:m 1123.32e4I 881 0u0ong A 2 1243111301. uMHN 0. 8 urvme feet B:Olry0 2b1511.01/an fad BWW J of l 4221a022,250 Morro Ian Duk.512 co .m D55. .Not Busslino 913 Tnrlinme 2,956 eguae fee 4u4mry Nut contains Sat rru.m 7cof B:'WNy ri5 contains 2a3 sows, am RAISIN A18 cow*m In INN ere lbt 1 16. A 1 I eom;lns J.-1a aminrA fast 6 CEMETERY C ,ThorehT I the hl oWUMrcemr er.Mer4Tamaaleaw MMaal or3wdy) aelrvp. Shunt 'of3 Key to CDS ALTA Survey [11 TIRE DESCRIPTION ) 1211 TITLE INFORMATION ) 131I SCHEM1LE D'ITEMB ) 14 110URVEYOR CERTiEiCAT10N ) r0 H FL000 INFORMATION ) 16ll CEMErear 171,036 BLE ENCROACHMENTS l811 zon1G 105070A117N 911 LEGEND I1011 BASISOF OENIG 11 SURVElOR4 NOYE-) 112Il PARKIG »,PDRMIT0N 114 LAND AREA I1911 autumn AREA ) �1 Q A 70001557 ) 11611 VICINIry MAP ) 11711 NOREN ARROW/SCALE ) 11811GH4NTINPDNMAT0NSOP ) 11411 80010Y DRAWN, Ito 11 r0OTE0r not* i ) ( 13 LAND AREA ) C0I 9T Sranm Pam _20.OM Acnf ) 15 BUILDING HEIGHT ) ( 1H.b'u1Lng h0gh1a BH2On0Ai nl20' il. W 12*41:4pN or8u ..No N2 a 000' �x 4.0 of 042000fnl.AS h I0mg opla is R:mloS AR 3l.5' o bailnin7 Kg. or BO:Idnp AS Is 6.5s TMbuWPy Iwiyhtd BOW)mg 21 re 13,0 The nation neve of Burning 91 M It,4' Rio 2.ne,0 h01Un0 N...oats TS.Y Ts bmMPy 05037 ORAWny Ag:sD6 1 r1.6 AMPn4 NTR!N1 cl euanmp PIO if 121• The OUE10109gn'&dmSE M .8#11 is 20 1n0OdmN1 d *41, or E.,* 412 it 1S S' fro aNanp h•9M of Buddry N12 N e0.0 ire Wrenn toper N 0:rq #tan tea 11n 1wl0410 hN,bgloM nit a 040 Bu1aa,p ine .110. Tissi e6.1rMg #10 te tan. Taw #WM rq (Well et eurk. PIE N 20.CT Approved CDS Surveyor s=wY ra rnr Pr Gregory A. Clark .'ARAM' lal0 .w WA. N 3323e8e5M 04324w ow &nor one to PO 1441 Uw 0484 H 18 ALTA/NSPS Land Title Survey ,Emmr.,,mn:.n ElMN Th. Work Co lmalae By: . 't. , o DIL1C lllLiC 1520 W Robinson Street. Th. Flow Normal, ON 13012 Oec•. n05.253.24.-Es. MIS 7021851 Toll Free: 888.457.7878 ,,,,, BY' _U 1 (Lino� i C0003a� DBto. 8.18-18 ._ FReNaon:p LM.iete.,8-3-i0='� j (AnMey .-IRONeTnp2- AC \__= i onto, 0.2.18 (nentD 4-iF LR ISO7 Ao -� N08 Data 11.22-16 C1.,:4(?' J �I8wl:00i8 7 Prepa ed For: 1 20 1F' if-PROJECT ADDRESS 8531 E Marginal Way South, Tukwila, WAName:Project -J Name: Constellation Enterprises LLC --_ COS Projert Number _ - 16-07-0159 J f f I Sound a ; ;.' Strategies W W W.SOUNDEARTH I NC.COM JORGENSON FORGE FACILITY 8531 EAST MARGINAL WAY SOUTH TUKWILA, WASHINGTON SOUNDEARTH PROJECT #0995-002 FIGURE 3A UTILITY LOCATION MAP (CDS SURVEY, 2016) PARCEL# 0001600023 P:\0995 JORGENSEN FORGE CORPORATION \0995 02 JORGENSEN FORGE\TECHNICAL\ CAD\2019\0995-002-06 UT.DWG L332 3:3331 A.b.V.A N .63.1a.. 1. &+r�ND it- I I I WITIMIV iY A PARCEL OF LAND SITUATED IN THE N OF SECTION 33, TOWNSHIP 24 NORTH, RANGE 4 EAST OF THE W.M.. COUNTY OF KING, STATE OF WASHINGTON iM.w.o;31 Woos 1O1Sseslarl N6B'39'23*0 i06a.00' (0) N69•S9'IS�r 1366.00' (0) ,r ..1645.92- 4.1965.1 1.0577.30 (0) 5+ 01 +000730) cx+Erz arum o°c. •PoS.111 E1,19a10.610 . MS. ).e 4 5a 0v. 11033 ON . to ;a_KFq 0 rtNrF r.lE .-% :.aiFlSry vx ( E u.:awcR91s1) u 34.0 04.4 i013 3-3303. k ° sn1 sw.ar RC xrE7 (_Wltel -67 CO 11 o r g CONSOSTS COROSTS 3 book 90.1E 3g4437 seem . 5A97Wn 3r.SR_� 3.03 tt.M 1,L0 .µ MrSeaf5- m �I - - 20939.25 0 a0.00 (6) al— V I Ix 6JMN Ftt7_ u0laru SRS -� 5. se539.23Y es..3• (0) 11,0 n^I0110 n7 9 0.073 608 O e m ial1111117.1 scvncc 3331 aratuu0433(133 937 ON W�`.0 NE, 0)N 244.400 EE7 003.0 101.5 000.131 153 m R•1969.13' .-N1Sx1'12.2 CR.•7a..9' (0) m 1/1..aOgNnrWN3 0w0.37E7r 191 r *Ant IN� I3 N m r OP SerSOIA 130.6 °roa' IA I q 1 1330 033610SIAMII bXINS. 9A5,5 Of BEARINR 650403W 356.90 (0) 995•.5.3C.'W 33000 (0) 3- °MSS VP 51m912 013 16 VICINITY MAP l 1N1TY kE.e Approved CDS Surveyor S+.r•+a nNM Gregory A. Clark o-11,..+s.4..,ee4hi ltene...sn7 � 120 rr...93434 ,i'3333, n•r1.e 3v-r.9-m. 18 ALTANSPS Land Title Survey m` uii4306 li.,e uup* �u (Ertncrva rMnuN x3.20103 21333 W010 OMI1,`L cawd1nnea 6y. DILI 3530 W. 000.04 Nam2n. dar.•: 403.2332.4 Toll 6 33300.113101 Fbw ON 73022 . far.05.70i.1053 ,ry gY_ 1_1.Lriree:ii88(8R.w.:::.._.14_,,.:8..7..; D 6-1 liU__ 1C.DDD,.rMr. __JPeENo: ay) I, R�qn: N2 OFC 1 ----- ---1 I(oo, 02-,e fl0Y1Dpta 3_4-16 f8e+bon:03 \\ l =43 II R5Halen:98 1 Prepa ed For: 1{ ) 20 PROJECT ADDRESS 1 8531E Marginal Way South. j Tukwila. WA i l( i Project Name: i Constellation Enterprises LLC I COS Project Number I 16-07-0159 0 50 100 APPROXIMATE SCALE IN FEET Strategies W W W.SOUNDEARTHINC.COM JORGENSON FORGE FACILITY 8531 EAST MARGINAL WAY SOUTH TUKWILA, WASHINGTON SOUNDEARTH PROJECT #0995-002 FIGURE 3B UTILITY LOCATION MAP WEST (CDS SURVEY, 2016) PARCEL# 0001600023 0 O 0 1 �tiryn e_u�:y_ A.L.W.A.M.S.P.S. LAND gLINNEWIE SURVEY A PARCEL OF LAND SITUATED IN THE N} OF SECTION 33, TOWNSHIP 24 NORTH, RANGE 4 EAST OF THE W.M., COUNTY OF KING, STATE OF WASHINGTON • ° TARO.Ir 20ER Ba N (n NBB']B'2]"E 1]tl0.00' e ]iG4W[ �GORR� 9.• ' Dim JF�... - .4...`�4O ASj[wq .} �I LJ FI> 2 -BroEv 6N:CN OVr awe Eli LY2 dF b' ...RIOT-Y 000R1 St. 9' boB =o �78 3 B' funRARr SnaER � %*=5V -%. w w • w—at 9 _ w . y72.0 N . 'a ,fa t0R OCT hiT w 77 • • • �iHIGa I TieI.P WrE<r I e Iab 8531 s Ist‘ttt• Ramiro q seam3-STORY 1414. rrncE � 6.e `I —co ea -0-1 a.o 0AI 231 • Buabwa�. arsatrreo (PR,ce0 Nb. ooa 8.0111 CO —A 121300. MT 7 ��n b2,� BiaR L,n.1.o "I(l._ �J' l.o � MKT 222 :"'"' "Val eR�] sM-- =a—.• =-e s c d :g„' "wb oB..b]-to3 REO 'wrwa• NI'BB•.]"E '1 0• (Y ]09']Bxl"W )BB.00' VARIER 1ao`bwn• Nvxo•a•w t.bb• (o .N,., 1. 625 maws muR.-/ route, Ross '11LLO8 CAP a,1'r.L1 008078 'rb5e' rntB. 3,10•40"E :70.00' (0) L50 \ E. UARGINWAY 5. \ \\ (vuk o.aPALutawl (sn' corm w:mnf \ \\•\ " 00'BEi5Aix s2S 212 nx.4B• (.Ijj ASwME2 \ ta ]xt.e•b'E 232.Bi (0) b ..N:AR. sr*ER� B A wl a. ] w B 1000„-- '14 Irj PROPANE W. \ N•2.. [Mlmrun B \\\i. aw a jLJ L_ w ~e; v.":(11. Of \ ®� "EY9 rAs<w.vr-/ Ann 8038Evr� L;/ (ma Nc.b>lb]Ict iREc.Na.b.xe,.; `yJ "BRn 1 PLC "WEaO' ,Rau mac wm: Si ON w°]rc un x imB' - 1111,3117, 111111004 Fl Sheol 3 of 3 Is+a 040 3•,v ,ua .rry wb+:+.�i kw.0 fr:i(ti r:�w 16 VICINITY MAP 34LY.7Y VAT_ Approved CDS Surveyor ~,�RB.r. Gregory A. Clark rah e,xs A.0;0r 18 ALTANSPS Land Title Survey °y hp TFeta:�n.obBury ,0 Tr30 Wak Coordinotao By: I•M�,� I.' I)ILK� 3560 W. Robinson Sava.. 'NM Roar Non0011. OR 22020 Me. 405.253.2 44. F•. <05.703. SW Toll Free: 888.457.7878 a n BY: rU 'ObtO: 818,6 Reakon: Ns Cato. &3L,8 RBCNo: IC000343 ,,,,w.l By _-- GA^ Row:slon. a2 _—_3- DeM 9:21 �Fleht Omm. a-n-i8ai- i. ��J Revision: N3 (Pole: 11.2246 •mow, Preps od For: .20 = m PROJECT ADDRESS 8531E Marginal Way South. Tukwila. WA _._.._. Project Ne Constellation Enterprises LLCLC CDS Project Number 16-07.0159 (01 I11 I l�. a LEGEND L f PROPOSED UTILITY CAP 0 50 100 APPROXIMATE SCALE IN FEET Strategies W W W.SOUNDEARTHINC.COM JORGENSON FORGE FACILITY 8531 EAST MARGINAL WAY SOUTH TUKWILA, WASHINGTON SOUNDEARTH PROJECT 80995-002 FIGURE 3C UTILITY LOCATION MAP EAST (CDS SURVEY, 2016) PARCEL# 0001600023 Attachment 5 Completed Public Works Bulletin A2 Type C Fee Estimate Worksheet 4.1 1908 PUBLIC WORKS BULLETIN A2 TYPE C FEE ESTIMATE WORKSHEET CITY OF TUKWILA Public Works Department 206-433-0179 Type C permit fees are based on the value of the construction work. The City collects an Application Fee when the application is submitted and a Permit Issuance and Inspection fee when the permit is issued. Applicable permits having flat rates are added to the calculated fees and are due when the permit is issued. You may use this form to estimate PW Permit fees. This is an estimate only. Actual fees may vary. If you do not provide contractor bids with your permit application, Public Works will review the cost estimates for reasonableness and may adjust estimates. The permit fee covers the cost for two reviews and two inspections. The permit fee does not include fees for additional reviews, additional inspections, or for revisions to approved plans. These fees are charged separately and must be paid before PW Final Inspection. Refer to Bulletins Al, A4, and A6 for more information. Three activities trigger a Type C permit. They are 1) Construction in the right-of-way, 2) Construction on private property, and 3) Grading. The following information should help you determine if you need a Type C permit. Tyne C Construction Issued for 180 days for activities in the right-of-way and/or on private property. These activities include sewer, water, surface water, grading, street improvements, boring, culverts, curb cuts, paving, driveways, fences, landscaping, painting/striping, sidewalks, trenching, or utility installation/repair. Tyne C Grading Fills in the regulatory floodway shall not be permitted. This Bulletin should not be used as a substitute for codes and regulations. Your project will be reviewed for specific compliance to codes and regulations. Approved 09.25.02 Last Revised 02/21/17 1.0 190E - PUBLIC WORKS BULLETIN A2 TYPE C FEE ESTIMATE WORKSHEET CITY OF TUKWILA Public Works Department 206-433-0179 Per TMC Chapter 16.54.050: • A grading permit does not include construction of retaining walls or other structures. • A grading permit is issued for 180 days for all grading operations, except for the listed exemptions: 1. Excavation for construction of a structure permitted under this code. 2. Cemetery graves. 3. Refuse disposal sites controlled by other regulations. 4. Excavations for wells or trenches for utilities. 5. Mining, quarrying, excavating, processing or stockpiling rock, sand, gravel, aggregate or clay controlled by other regulations, provided such operations do not affect the lateral support of, or significantly increase stresses in, soil on adjoining properties. 6. Exploratory excavations performed under the direction of a registered civil or geotechnical engineer. Exploratory excavation does not include grading to begin construction of a structure, prior to receiving a permit. This Bulletin should not be used as a substitute for codes and regulations. Your project will be reviewed for specific compliance to codes and regulations. Approved 09.25.02 Last Revised 02/21/17 BULLETIN A2 TYPE C PERMIT FEE ESTIMATE PLAN REVIEW AND APPROVAL FEES DUE WITH APPLICATION PW may adjust estimated fees PROJECT NAME Star Forge, LLC PERMIT # D19-0311 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 category: Mobilization 0 $250 (1) Erosion prevention 11500 Water/Sewer/Surface Water 10000 Road/Parking/Access 0 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 than $200,000 of A. 0 D. 1.5% of amount over $200,000 of A. 4. TOTAL PLAN REVIEW FEE (B+C+D) 21500 537.50 5. Enter total excavation volume cubic yards Enter total fill volume cubic yards 0 Use the following table to estimate the grading plan review fee. Use the reater of the excavation and fill volumes. 537.50 (4) QUANTITY IN CUBIC YARDS RATE Up to 50 CY Free 51-100 $23.50 101-1,000 $37.00 1,001 —10,000 $49.25 10,001 — 100,000 $49.25 for 1sT 10,000, PLUS $24.50 for each additional 10,000 or fraction thereof. 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 $ (5) TOTAL PLAN REVIEW FEE DUE WITH PERMIT APPLICATION (1+4+5) $ 787.50 The Plan Review and Approval fees cover TWO reviews: 1) 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 01.01.19 1 BULLETIN A2 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) $ 537.50 (6) 7. Pavement Mitigation Fee $ 0 (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 the greater of the excavation and fill volumes from Item 5. $ (8) QUANTITY IN CUBIC YARDS RATE 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 01.01.19 2 26.88 (9) BULLETIN A2 TYPE C PERMIT FEE ESTIMATE PLAN REVIEW AND APPROVAL FEES DUE WITH APPLICATION PW may adjust estimated fees 10. TOTAL OTHER PERMITS A. Water Meter — Deduct ($25) B. Flood Control Zone ($52.50 — includes Technology Fee) C. Water Meter — Permanent* D. Water Meter — Water only* E. Water Meter — Temporary* * Refer to the Water Meter Fees in Bulletin Al Total A through E $ 0 (9) 11. ADDITIONAL FEES A. Allentown Water (Ordinance 1777) $ B Allentown Sewer (Ordinance 1777) $ C. Ryan Hill Water (Ordinance 1777) $ D. Allentown/Foster Pt Water (Ord 2177) $ E. Allentown/Foster Pt Sewer (Ord 2177) $ F. Special Connection (TMC Title 14) $ G. Duwamish $ H. Transportation Mitigation $ I. Other Fees $ Total A through I $ 0 (10) DUE WHEN PERMIT IS ISSUED (6+7+8+9+10+11) $ 564.38 ESTIMATED TOTAL PERMIT ISSUANCE AND INSPECTION FEE This fee includes two inspection visits per required inspection. Additional inspections (visits) attributable to the Permittee's action or inaction shall be charged $70.00 per inspection. WATER METER FEE Permanent and Water Only Meters Size (inches) Installation Cascade Water Alliance RCFC 01.01.2019 —12.31.2019 Total Fee 0.75 $625 $6,416 $7,041 1 $1125 $16,040 $17,165 1.5 $2425 $32,080 $34,505 2 $2825 $51,328 $54,153 3 $4425 $102,656 $107,081 4 $7825 $160,400 $176,050 6 $12525 $320,800 $333,325 Approved 09.25.02 Last Revised 01.01.19 Temporary Meter 0.75" $300 2.5" $1,500 3 Attachment 6 Email Correspondence from Bill Billick With Ecology regarding Construction Stormwater General Permit From: Asnika Wallendahl To: Mindy Graddon Subject: FW: Follow -Up Re: Stormwater Permitting at Jorgensen Forge Date: Wednesday, October 23, 2019 4:59:56 PM Please print and include in the correction response. From: Billick, Ben (ECY) <BBIL461@ECY.WA.GOV> Sent: Wednesday, October 23, 2019 10:23 AM To: wturk@jorgensenforge.com; Annika Wallendahl <AWallendahl@soundearthinc.com> Cc: mhoman@jorgensenforge.com; Harvey, Katy (E:CY) <KGIB461@ECY.WA.GOV>; Sanchez, Maureen (ECY) <MASA461@ECY.WA.GOV> Subject: RE: Follow -Up Re: Stormwater Permitting at Jorgensen Forge Hello Wayne and Annika, Following up on my email below and my conversation with Annika last week about permitting for demolition activities at Jorgensen/Star Forge. Annika, based on our conversation it is my understanding that prior to any demolition of structures at the site, the pits inside the buildings will be filled and capped and all exposed soils will be paved. As a result, bare soils will not be exposed to precipitation during or after demolition. Operation of the treatment system and sampling under the ISGP will also continue during demolition activities. I provided this information to Ecology's Construction Stormwater General Permit (CSGP) Writer, and she confirmed that you do not need to obtain CSGP coverage for the demolition activities. Please let me know if I misunderstood your demolition plans or if your plans for demolition change, as that could affect the permit coverage determination. Please don't hesitate to contact me it you have any questions. Regards, Ben Billick Senior Water Quality Inspector Department of Ecology, Northwest Regional Office Office: (425) 649-7059 ; Cell: (425) 999-0642 bbil461Pecv.wa.gov From: Billick, Ben (ECY) Sent: Tuesday, October 15, 2019 4:03 PM To:'wturk@jorgensenforge.com' <wturkPjorgensenforge.com> Cc: 'mhoman@jorgensenforge.com' <rnhomanPjorgensenforge.com>; 'awallendahl@soundearthinc.com' <awallendahlPsoundearthinc.com>; Harvey, Katy (ECY) <KGIB461( ECY.WA.GOV>; Sanchez, Maureen (ECY) <masa461PECY.WA.GOV> Subject: Follow -Up Re: Stormwater Permitting at Jorgensen Forge Hello Wayne, I am writing to follow-up on the question of stormwater permitting at the Jorgensen Forge/Star Forge facility. Attached please find a copy of my report for the inspection I conducted in July to assess the facility's future eligibility for terminating Industrial Stormwater General Permit (ISGP) coverage. I apologize for the delay in getting this report issued. As described in the report, the plans for clean closure and vacating the site that you described during the inspection should make the facility eligible to terminate coverage under the ISGP. However, I recently learned from my colleagues in Ecology's Hazardous Waste and Toxics Cleanup Programs that Star Forge's plans for vacating the site have changed. Specifically, I was told that Star Forge will now be demolishing buildings on -site prior to the sale of the property. These activities could impact stormwater permitting requirements at the facility. Based on the description of the planned demolition activities that I received, it sounds to me as though you may need coverage under Ecology's Construction Stormwater General Permit (CSGP) before you can begin the work. Could you please provide me with additional information on the specific demolition activities that are Manned. and how stormwater will be manag d d gyring these activities as soon as possible? I understand that Star Forge is trying to get this work done quickly, so it is important to get this sorted out sooner rather than later. Thanks, and please don't hesitate to call if you have any questions. Regards, Ben Billick Senior Water Quality Inspector Department of Ecology, Northwest Regional Office Office: (425) 649-7059 ; Cell: (425) 999-0642 bbil461(ecy.wa.gov A K1=VIEWED FOR CODE COMPLIANCE APPROVED AUG 0 8 2023 City of Tukwila BUILDING DIVISION This Addendum to t e Former Jorgensen Forge Facility Demolition Work Plan, Revision 02, is being submitted on behalf of Star Forge, LLC (Star Forge) to address comments by the City of Tukwila Fire Marshall, and to clarify who will perform certain aspects of the work. The Interim Action work will be conducted independent of the building demolition by Star Forge's Contractor, Construction Group International (CGI), and overseen by Star Forge's environmental consultant, DH Environmental, Inc. (DH Environmental). CGI will provide an ICC Certified Decomissioner to conduct the removal and closure work, and DH Environmental will provide a WA State UST Site Assessor to perform the Site Assessment duties in accordance with WAC 173-360 and applicable ICC/IFC requirements. At the time of submittal of this permit application revision, legal and regulatory processes are being undertaken by Star Forge and the Washington Department of Ecology (Ecology) to address removal and final closure of the underground storage tanks at the site through a Model Toxics Control Act (MTCA) Interim Action. In addition, closure of the Dangerous Waste Management Units will be conducted as part of the Interim Action work. The work will be conducted under a MTCA Interim Action, pursuant to an Agreed Order currently being negotiated between Star Forge and Ecology. The MTCA Interim Action work will require an Interim Action Workplan, which is currently being developed by DH Environmental on behalf of Star Forge. After Ecology review, the Interim Action Workplan will be subject to a mandatory 8-12-week public review process. Due to the uncertainty of the timing of these processes, the timing for the decommissioning work will depend on the timeline for Ecology and public review of the Interim Action Work Plan. From the perspective of the demolition permit and scope, the Interim Action Work is a subset of the demolition with its own SEPA process and regulatory requirements. Therefore, Star Forge, LLC is requesting the City of Tukwila grant the demolition permit so that the demolition work that is not part of the Interim Action work can b gin�� ssable� would include filling..r of the deep pits and vaults to mitigate further riskvow rfirs APPROVED responders, and trespassers, followed by demolition of the buildings. Addendum / Revisions Section 1.1.3 of the Demolition Work Plan states the following: Dangerous Waste Clean Closure Former Jorgensen Forge Facility Demolition Work Plan Revision 02 ADDENDUM 01 Plan Check/Permit Number: D19-0311 30 June 2021 RECEIVED :4T V OF TUKWILA J;. L 01 2021 ERMIT CENTER AUG 0 8 2023 City of Tukwila BUILDING DIVISION DH Environmental prepared and submitted a Dangerous Waste Clean ClosureRciap7TYrtdie purpose of documenting the Clean Closure of Dangerous Waste Management Units (DWMUs) at the facility on 22 July 2020. The Clean Closure Report documented removal of Dangerous Waste from the facility and provided updated records of Dangerous Waste Designations of debris, slag, and materials associated with the DWMUs at the facility such as concrete slabs and foundations and containment areas. Attachment 1 is a letter from Ecology clarifying Ecology's position and expectations for remaining Clean Closure requirements. Following demolition of the buildings, remaining clean closure work will be conducted under a separate administrative process with Ecology. -� ^? tiro REVISION NO,l T1cj31s d Former Jorgensen Forge Facility Demolition Work Plan Revision 02 ADDENDUM 01 Plan Check/Permit Number: D19-0311 30 June 2021 This Addendum clarifies that the Dangerous Waste Clean Closure work will be conducted by Star Forge's contractor, Construction Group International (CGI), and overseen by Star Forge's environmental consultant, DH Environmental, Inc. (DH Environmental) once the Interim Action Workplan has been approved and authorized under an Agreed Order. Section 1.1.3 of the Demolition Work Plan states the following: Underground Storage Tank (UST) Regulations The facility has two separate structures encompassing 18 partially buried storage tanks that are regulated under WAC 173-360A. The tanks have been emptied, licensed with Ecology, and covered under appropriate financial assurance mechanisms. Decommissioning of the USTs will be conducted under a separate administrative process with Ecology. This Addendum clarifies that the Underground Storage Tank removal will be conducted by Star Forge's contractor, Construction Group International (CGI), and overseen by Star Forge's environmental consultant, DH Environmental, Inc. (DH Environmental) once the Interim Action Workplan has been approved and authorized under an Agreed Order. October 22, 2019 Annika Wallendahl, PE, SoundEarth Strategies 2811 Fairview Ave East Seattle, WA 98102 Reference: LG, MBA , Suite 2000 CODE COMPLIANCE APPROVED AUG 0 8 2023 City of Tukwila BUILDING DIVISION P002073.00 SoundEarth Jorgenson Site Demo Support Star Forge Facility Demolition Project l:➢ Harris Group REVIEWED FOR CODE COMPLIANCE APPROVED AUG 0 8 2023 City of Tukwila BUILDING DIVISION Support of Correction Letter #1 Development Permit Application Number D19-0311 Project Address: 8531 E Marginal Way South, Tukwila, Washington Dear Annika Wallendahl, This letter is provided in support of the Star Forge Facility Demolition project at 8531 E Marginal Way South, Tukwila, Washington. We understand approximately 16 buildings will be demolished, and a number of existing foundations and concrete lined equipment vaults or "pits" in the basement area are to remain in -place. This letter specifies the backfill, compaction, and special inspection requirements for the basement pits. These recommendations are contingent on the approval of the building official to perform work without a geotechnical report. In accordance with the Tukwila Municipal Code 16.54.060 and Appendix J of the 2015 International Building Code (IBC), suitable fill material for the abandoned pits includes imported Select Borrow or Gravel Borrow meeting the requirements of section 9-3.14(1) or 9-03.14(2) of the 2020 WSDOT Standard Specifications. 1 1/4 inch minus crushed rock would also be considered a suitable fill material. All fill material should be moisture conditioned (as necessary), placed in loose uniform lifts not to exceed 12 inches, and compacted to a minimum of 95 percent of its maximum dry density as determined by ASTM D1557 (modified proctor test method). These recommendations are consistent with generally accepted site backfill practices in this area of Washington State. Prior to backfilling activities, the existing concrete pits shall be cleared of all organic and non -suitable material. All pit concrete surfaces to receive backfill material shall be sound and intact; backfill shall not be placed over loose or broken concrete without proper preparation. Special Inspections and testing are required for the backfilling activities. The owner shall employ all special inspection and required material testing services. Special inspection and testing services shall be provided by an approved agency, regularly engaged in performing special inspection and testing services and approved by the local building official. Special inspections, tests, and reporting shall be performed in accordance with chapter 17 of the IBC. RECEIVED CITY OF TUKWILA OCT 2 8 2019 PERMIT CENTER Our difference is engineered. 2601 4t Avenue Suite 400 Seattle, WA 98121 (206) 494-9400 www.harrisciroup.com 1-1 Harris Group Required special inspection and tests: 1. Perform classification and testing of compacted fill materials (periodic special inspection). 2. Verify use of proper materials, densities, and lift thicknesses during placement and compaction of compacted fill (continuous special inspection). 3. Prior to placement of compacted fill, inspect existing concrete pit floor and verify any organic and non -suitable materials have been removed (periodic special inspection). We understand the pits will be covered by an impervious surface at the completion of the backfilling activities. The design of the impervious surface covering, any pit lining, evaluation and/or remediation of contaminated material, or alterations including any concrete pit removal or repair are outside of Harris Group scope. Currently, we are unaware of the future planned use of this site. These backfill recommendations are consistent with generally accepted site backfill practices in this area of Washington State. Future site development features such as roadways or buildings that may be supported by backfill will require a geotechnical investigation complete with recommendations specific to the future plianned development. Alternative backfill materials and techniques may be considered to improve schedule and/or reduce construction costs; evaluation and/or recommendations of alternates should be provided by a geotechnical engineer. Sincerely, Sean M. Duffy, PE, SE Structural Engineer cc: Leo Cosgrove, Jeff Ross, File Our difference is engineered. Engineering Controls on Brownfields Information Guide: How They Work with Institutional Controls; the Most Common Types Used; and an Introduction to Costs :.EPA UnitedEStates EnvironmentalProtection Agency Introduction Engineering controls (ECs) encompass a variety of engineered and constructed physical barriers (e.g., soil capping, sub- surface venting systems, mitigation barriers, fences) to contain and/or prevent exposure to contamination on a property. In contrast, institutional controls (ICs) are administrative or legal instruments (e.g., deed restrictions/notices, easements, covenants, zoning) that impose restrictions on the use of contaminated property or resources. ICs are also used to identify the presence of ECs and long-term stewardship (LTS) requirements. Long-term stewardship refers to the activities necessary to ensure that ECs are maintained and that ICs continue in force. Additional information regarding LTS can be found at: www.epa.gov/brownfields/tools/Its_fs_04_2008.pdf The need for ECs and/or ICs is identified as part of selecting a cleanup remedy and will vary depending on a number of factors, including but not limited to, the planned activity and land use for the property, the extent and location of contamination, and the environmental medium impacted. While it is not uncommon to find ICs without ECs, ICs are typically an integral part of EC protectiveness. For example, the most common ICs for brownfielld cleanup projects (e.g., deed notices/restrictions, environmental covenants, state registries) provide information or notifications that residual contamination may remain on a property and identify ECs such as caps, mitigation barriers, or fencing, which are intended to restrict access and exposure to contamination, and eliminate further migration of contamination. Over the past several years environmental covenants have become an increasingly popular form of LTS to address activity and land use restrictions and engineering control installation, operation, and maintenance. Environmental covenants provide a mechanism to ensure that land use restrictions, mandated environmental monitoring requirements, and a wide range of common engineering controls designed to control the potential environmental risk of residual contamination will be reflected on the land records and effectively enforced over time as valid real property servitude. Currently 25 states have enacted legislation to adopt a form of the Uniform Environmental Covenants Act (UECA). More information regarding UECA can be found at: www.environmentalcovenants.org/ There are many different types of ECs and they vary from property to property, depending on the contaminants found and the type of media impacted. The following is a list of the more commonly used ECs at brownfield properties. Capping in Place (Asphalt or Concrete) — The use of paved areas (e.g., parking lots, roadways) and building foundations as surface barriers or caps over contaminated soil. Capping in place involves creating and maintaining a hard surface, usually concrete or asphalt, over contamination. The result is a high strength, low permeability cover that reduces surface water infiltration and stabilizes contaminated soils. As a result, the cap prevents contact with the contaminated soil and contaminant mobility is limited protecting ground water. Paved areas such as parking lots and roadways can be used as caps over contaminated soil • Capping in Place (Clean Fill) — Placement of defined thickness of clean fill over an area of contaminated soil (e.g., 2-3 feet of soil for non-residential uses, 10 feet for residential uses) to prevent contact with the cont att dl,i p P Fl-03.11 CITY OFTUKWILA • Passive Depressurization Systems — Installation of a passive vapor control system in conjunction with a vapor barrier under buildings to minimize potential migration of volatile contamination to indoor air. A passive depressurization system relies on a natural convection of air to draw air from the soil beneath a building and discharges it to the atmosphere through a series of collection and discharge pipes. • Active Depressurization Systems — Installation of an active vapor control system in conjunction with a vapor barrier under buildings to minimize potential migration of volatile contamination to indoor air. An active depressurization system consists of a fan or blower which draws air from the soil beneath a building and discharges it to the atmosphere through a series of collection and discharge pipes. • Ground Water Migration Barriers (e.g., barrier wall, ground water depression systems) — The use of a vertical impermeable barrier to limit exposure by cutting off the route and preventing migration of contaminated ground water or leachate from a contaminated property. Engineering Controls Integrated Into Redevelopment An important consideration for ECs in the context of brownfields redevelopment is the benefit of integrating the implementation and long-term stewardship of the ECs into the redevelopment of a property. In some cases, elements of the redevelopment (e.g., paving, building foundations) can serve as the EC by providing barriers to eliminate potential exposures to soil, ground water, and other environmental media. In cases where ECs are an integral part of the redevelopment, however, it may be difficult to separate the specific cost of the EC from the redevelopment. For example, where a parking lot is used as a cap over contaminated soil, the cost of site preparation and paving would have already been a consideration for the cost of the redevelopment. The cost of the EC would be any incremental costs that would not have been incurred during the paving if the contaminants were not present in the soil. Although these five ECs are the most commonly used on brownfield redevelopment projects, other types of ECs are also used to reduce exposure to and migration of contamination left on the property. Other ECs used on brownfield properties include, but are not limited to: • Security Barriers and Fencing — Used to restrict access to contaminated and unsafe brownfield properties. • Solidification/Stabilization — Occurs by injecting or mixing cement into contaminated soil to lock contaminants into a structurally sound mass of solid material for disposal. • Geotextile Fabric Barriers — Separate, filter, drain, or reinforce soils. • Engineered Caps — Designed to meet specific performance and containment requirements such as permeability. • Leachate Collection Systems — Direct and collect contaminated leachate, and then transport it offsite for disposal. • Permeable Reactive Barriers — Walls that are built below ground and are composed of materials that remove contaminants from ground water as it flows through the permeable barrier. In addition, remedial actions such as ground water pump and treat systems, soil vapor extraction systems, and monitored natural attenuation may continue beyond the change in use or redevelopment of a property. In these cases, long-term stewardship similar to engineering controls will be required and can be incorporated into institutional controls such as environmental covenants. Engineering Control Use at Brownfield Properties Each brownfield property redevelopment project is different and the need for ECs and/or ICs is based on several factors during the selection of the cleanup strategy. Property specific factors influence the selection of the cleanup remedy and control measures. A list of typical brownfield properties, the general types of contamination found at those properties, and the most common ECs follows. • Gasoline service stations and auto body repair shops are typically contaminated with petroleum hydrocarbons from underground storage tanks (USTs) and, in some cases, metals associated with motor and hydraulic oils and cleaning solvents. These properties generally use land use and resource restrictions (ICs) along with capping technologies and active/passive depressurization systems to address residual contamination left on the property. • Industrial properties are typically contaminated with asbestos, heavy metals, volatile organic compounds (VOCs), semi -volatile organic compounds (SVOC), and polychlorinated biphenyls (PCBs) from manufacturing operations at the property. These properties generally use land use restrictions (ICs) along with capping technologies, active/passive depressurization systems, and security barriers (e.g., fences) to mitigate exposure to contamination left on the property. • Commercial properties (e.g., dry cleaning operations) are typically contaminated with asbestos, VOCs, polycyclic aromatic hydrocarbons (PAHs), and PCBs from operations at the property. These properties generally use ICs (i.e., land use and resource restrictions) along with capping technologies (e.g., asphalt or clean fill) to address residual contamination left on the property. • Landfills and dumps are typically contaminated with oils, paints, solvents, corrosive cleaners, batteries, VOCs, Engineering Controls and Cleanup ECs are typically considered a form of cleanup; however, it is important to recognize that there is a distinction between ECs and other forms of cleanup. ECs are often installed during cleanup as a condition of a no further action determination and are generally intended to be in place for long periods of time. In many cases, the presence and long- term stewardship (e.g., O&M) of ECs are defined in environmental covenants, O&M agreements, or other instruments. Other forms of cleanup may reduce or remove contamination in soil, ground water, and other environmental media (e.g., soil removal and disposal, ground water treatment, soil vapor extraction and treatment). These remedial actions are designed to be short term and targeted to meet a defined endpoint (e.g., corrective action goal or risk -based concentration in soil or ground water). While ECs are intended to be in place beyond the no further action determination, cleanups to reduce or remove contamination are typically completed before a no further action determination is made. It is important to note that in some cases, the technology implemented for ECs may be very similar to the technology implemented for reduction or cleanup. For example, a ground water pump and treat system can be used to reduce contamination in ground water or it can be used as an EC to control ground water migration. PAHs, and PCBs from the waste disposal at the property. These properties generally use ICs (i.e., land use and resource use restrictions) along with capping technologies and ground water mitigation barriers to reduce exposure and migration of contamination from the property. Engineering Control Costs The cost of installing and maintaining ECs is different for each property. In many cases, the costs of installing an EC is an integral part of a property redevelopment (e.g., paving as capping, or a building foundation as a cap) with little additional costs attributable to the EC. The range of costs to install and maintain ECs is, therefore, dependent upon several factors, including but not limited to: construction activities on the property; size of the property; extent and concentration of contamination; size of the building(s) or structure(s) on the property; location of the property; and depth to ground water. There are three general types of costs associated with ECs: programmatic costs capital cnstg and operation and maintenance costs. • Programmatic costs are incurred when municipal or local governments develop and implement LTS programs. Programmatic costs include: preliminary costs to develop the program, long-term planning for implementation, public outreach, and developing monitoring and enforcement plans. • Capital costs are costs incurred for the design, construction, and installation of the EC. Capital costs may include, but are not limited to: mobilization and demobilization; monitoring, sampling, testing, and analysis; site work; design Type of EC Range of Capital Costs Activities included in Capital Costs Range of O&M Costs* Activities included in O&M Costs Capping in Place • Clearing: $5,000 to $7,500 • Site clearing • $1,000 annually • Long-term inspections (Asphalt or Concrete) per acre • Equipment mobilization • Repair of damages • 1" Sub -base: $2.50 to $7.00 • Initial surface compaction • Site supervision per square yard • Design and engineering • Security • 1.5" Surface: $12.00 to $20.00 per square yard • Swale: $15.00 to $25.00 per linear foot • • • Surface preparation Hard surface cap layer placement Edge drainage swale preparation • Site quality assurance and health and safety • CQA program Capping in Place • Excavation: $15 to $30 per • Site clearing • $5,000 annually • Long-term inspections (Clean Fill) cubic yard • Equipment mobilization (vegetative cover) • Repair of damages • Placement: $50 to $75 per cubic yard • Surface preparation • • • Initial surface compaction Design and engineering Surface preparation • Watering/irrigation system (to maintain vegetative cover) and Hydro -Seeding: • Cap layer placement • Mowing $100 to $200 per 1,000 square feet • Edge drainage swale preparation • • Utilities Site supervision • CQA program _ • Security • Irrigation system • Site quality assurance and health and safety Passive Depressurization • $2,000 to $5,000** • • Equipment mobilization Design and engineering • $1,000 to $5,000 annually • Long-term oversight and inspections Systems • Trenching and backfilling • Repair of damages • Vent piping • Site supervision • • Passive barrier installation Compaction and restoration • Site quality assurance and health and safety • GeoEngineer oversight Active Depressurization • $5,000 to $20,000** • • Equipment mobilization Design and engineering • $1,000 to $10,000 annually • Long-term oversight and inspections Systems • Trenching and backfilling • Performance and site • Vent piping Monitoring • Passive barrier installation • Utilities • Mobilize and install active system • • Repair of damages Site supervision • • Compaction and restoration GeoEngineer oversight • Site quality assurance and health and. safety Ground Water • Trench barrier: $200 to • Equipment mobilization • Trench barrier: $3,000 to • Long-term oversight and Migration Barriers $1,000 per linear foot of • Design and engineering $10,000 annually **** inspections trench*** • Migration wall construction • Ground water depression: • Repair of damages • Ground water depression: and installation $5,000 to $35,000 • Site supervision $50,000 to $500,000*** • GeoEngineer oversight annually **** • Site quality assurance and health and safety * Assumes length of post -closure care is 20-30 years. Assumes average building size of 4,000 square feet. The capital costs of ground water migration barriers are dependent on the type of barrier installed, the depth of the barrier and other site -specific conditions. The capital costs provide a range of costs considering the variability in these characteristics. Trenching assumes a maximum depth of 20 feet below the ground surface. Ground water depression assumes pumping rate of 1 to 10 gpm and that extracted water will be treated prior to discharge. **** Assumes periodic ground water monitoring for trench barrier. Assumes periodic ground water monitoring and inspection and maintenance of pumping and treatment systems. Note that the EC examples identified in the table do not include capital and operating costs associated with designing, installing, and operating a ground water monitoring program that may be required. Additional information regarding EC and IC costs can be found in An Introduction to the Cost of Engineering and Institutional Controls at Brownfield Properties at: www.epa.gov/brownfields/toolsAts cost fs.pdf and engineering; construction and installation; off -site treatment and disposal; construction quality assurance (CQA); and project and construction management. • Operation & Maintenance (O&M) costs associated with ECs should be considered throughout the lifecycle of property cleanup and post -cleanup care. O&M activities are conducted at a property after ECs are in place, to ensure that the action is effective and operating properly, and may include, but are not limited to: performance inspections and site monitoring; operating remediation systems, including sampling and analysis, preparing reports, and recordkeeping; maintaining caps and system maintenance; and site supervision. The following table provides a range and list of costs for the more common ECs implemented on brownfield properties. The examples provided below only include site -specific capital and O&M costs incurred when designing, implementing, and monitoring ECs. The table does not include the programmatic cost to a municipality or local government to develop and implement a LTS program. In addition, each EC design and implementation will incur indirect and variable costs. These indirect and variable costs are not listed in the table and may include, but are not limited to: project management, vendor selection, permit preparation and fees, regulatory interaction, and contingencies. Local Government Planning Tool to Calculate IC/EC Costs for Brownfield Properties The cost calculator is designed as a voluntary guide for municipal or local governments to assist in calculating their expected costs of implementing and conducting LTS of ICs and ECs at brownfield properties. In general, primary responsibility for maintaining ICs and ECs rests with the property owner and others responsible for cleanup. The state response program often plays a large role in selecting, implementing, and monitoring ICs and ECs; however, local governments, as controllers of local land use and zoning, often have responsibilities associated with ICs and ECs and LTS at brownfield properties. Each of these separate entities may have different roles, responsibilities and costs. It is important to calculate the full cost of LTS for ICs and ECs, both short- and long-term to ensure adequate resources are available for their management over time. Additional information on the institutional and engineering control costs calculating tool can be found in the Local Government Planning Tool to Calculate Institutional and Engineering Control Costs for Brownfield Properties at: www.epa.gov/brownfields/toolsitti_lucs.htm. Sources for Estimating Costs and Additional Resources EC capital and O&M cost estimates can be generated from several sources. Cost -estimating software and databases can be used to calculate the capital and O&M costs of ECs. The majority of available software tools are designed to estimate the cost for all or selected cost elements of an EC. Below is a list of several sources for estimating costs of ECs. • Cost Estimating Guides/References — Provide costs for a wide variety of construction activities, including those related to property cleanup. Some guides are specifically customized to estimate costs for environmental remediation projects. Cost data in guides or references are often broken down into labor, equipment, and material categories, and may or may not include contractor markups. Costs are typically provided on a national average basis for the year of publication of the reference. • Vendor or Contractor Quotes — Provide costs that are more site -specific in nature than costs taken from standard guides and references. These quotes usually include contractor markups and are typically provided as a total Cost rather than categorized as labor, equipment or materials. If possible, more than one vendor quote should be obtained. Quotes from multiple sources can be averaged, or the highest quote can be used in the cost estimate if the collected quotes seem to be at the low end of the industry range. • Experience with Similar Projects — Engineering judgment should be exercised if cost data from another project need to be adjusted to take into account site- or technology -specific parameters. In addition, sources of actual cost data from government remediation projects are maintained by various federal agencies. • Cost Estimating SoftwarelDatabases/Reports — The majority of available software tools are designed to estimate the cost for all or selected cost elements of an alternative. • Remedial Action Cost Engineering Requirements (RACER) —A cost estimating system originally developed by the U.S. Air Force. The system uses a patented methodology for generating location -specific program cost estimates. RACER calculates quantities for each technology; localizes unit costs for materials, equipment, and labor; adjusts unit prices for safety and productivity losses; and applies markups to account for indirect costs. It uses current multi - agency pricing data, and is researched and updated annually to ensure accuracy. This software is available for purchase at: www.frtr.gov/ec2/ecracersystem.htm CostPro —A software program developed by EPA to estimate costs for closure and post -closure plans prepared by Treatment, Storage, and Disposal Facilities (TSDFs) regulated under the Resource Conservation and Recovery Act (RCRA). Under RCRA, owners or operators of interim status and permitted TSDFs must prepare and annually update a cost estimate for closure and post -closure (if applicable) and provide corresponding financial assurance. CostPro uses data from RS Means and ECHOS for specific cost items. EPA limits free distribution of the software only to EPA and state personnel. Others interested in obtaining the software must pay a licensing fee to RS Means and ECHOS that provides the right to use the data incorporated into this software. To obtain further information about CostPro or how to obtain the software: contact Bob Maxey, EPA Headquarters, at (703) 308-7273 or maxey.robert@epa.gov. Micro Computer Aided Cost Engineering System (MCACES) —A program used by the U.S. Army Corps of Engineers that is linked to the Unit Price Book (UPB) database. www.hnd.usace.army.rnil/traces/ Federal Remediation Technology Roundtable (FRTR) — FRTR makes data more widely available on real experiences and lessons learned in selecting and implementing treatment and site characterization technologies to clean up soil and ground water contamination. The remediation case study reports describe the performance and cost of technology applications at full-scale and large-scale demonstration projects. www.frtr.gov/costperf.htm • Innovative Treatment Technologies — Provides information about characterization and treatment technologies for the hazardous waste remediation community. It offers technology selection tools and describes programs, organizations, publications for federal and state personnel, consulting engineers, technology developers and vendors, remediation contractors, researchers, community groups, and individual citizens. www.epa.gov/tio/remed.htm • EPA's Cleanup Information (CLU —IN) — Provides information about innovative treatment technologies and acts as a forum for all waste remediation stakeholders. www.clu••in.org/remediation/ • A Guide to Developing and Documenting Cost Estimates During Feasibility Study (July 2000) — This guide provides capital and O&M cost categories and details steps in calculating costs of ECs. www.epa.gov/superfund/ policy/remedy/pdfs/finaldoc.pdf • Florida Department of Environmental Protection Engineering Controls Report (1999) — This document considers the adequacy of ECs available for use at contaminated properties; summarizes the types of ECs currently available; evaluates the effectiveness of ECs in protecting human health, and the environment; and evaluates the ability of ECs to achieve risk -based corrective action criteria at contaminated properties. www.dep.state.fl.us/waste/ quick_topics/publications/wc/csf/focus/engineer.pdf For additional information regarding ECs/ICs and LTS, please visit the EPA Brownfields Program at www.epa.gov/brownfields or contact Ann Carroll at (202) 566-2748 or carroll.ann@epa.gov. .City of Tukwila Department of Community Development June 07, 2022 WAYNE TURK 8531 E MARGINAL WAY S TUKWILA, WA 98108 RE: Extension Letter # 3 DEVELOPMENT Application or Permit Number D19-0311 STAR FORGE, LLC - 8531 E MARGINAL WAY S Dear WAYNE TURK, Allan Ekberg, Mayor Nora Gierloff, Director This letter is in response to your written request for an extension to your Application or Permit D 19-0311. The Department Director, or the Building Official has reviewed your letter and considered your request to extend the above referenced application or permit. It has been determined that the City of Tukwila will be granting an extension to the permit through 9/25/2022. If you should have any questions, please contact our office at (206) 431-3670. Sincerely, Shana Markstrom Permit Technician File No. D19-0311 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 City of Tukwila Department of Community Development December 20, 2021 WAYNE TURK 8531 E MARGINAL WAY S TUKWILA, WA 98108 RE: Correction Letter # 1 to Revision 1 before Issue DEVELOPMENT Permit Application Number D19-0311 STAR FORGE, LLC - 8531 E MARGINAL WAY S Dear WAYNE TURK, Allan Ekberg, Mayor Nora Gierloff, Director This letter is to inform you of corrections that must be addressed before your development permit can be approved. The expiration date on your permit is 3/25/2022, please send an email to permits@tukwilawa.gov or call the Permit Center at 206-431-3670 if expiring within the next 30 days and you wish to extend. 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: PLANNING - R DEPARTMENT: Nancy Eklund at 206-431-7141 if you have questions regarding these comments. • The Department of Community Development (DCD) is unable to continue reviewing the demolition permit application D19-0311 for Star Forge until the SEPA determination is issued for application E19-0008. The City Fire Marshall and the Department of Ecology support a plan that removes the underground storage tanks. Given that UST removal was not part of the original SEPA submittal, and numerous other documentation about site conditions have been submitted since the original SEPA materials were submitted, the City has requested that the SEPA be updated to reflect the current plan, and that the SEPA be again released for public comment. Once the SEPA determination has been issued, DCD will continue review of D19-0311. PW - R DEPARTMENT: Joanna Spencer at 206-431-2440 if you have questions regarding these comments. • PW is unable to continue this project review until SEPA E19-0008 is approved. If more than 1 acre of land will be disturbed as result of this project, applicant shall obtain a Notice of Intent -Storm Water Construction permit from Ecology. Please address the comments above in an itemized format with applicable revised plans, specifications, and/or other documentation. The City requires that two (2) 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 'Correction 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. Sincerely, Shana Markstrom Permit Technician 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 File No. D19-0311 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 City of Tukwila Department of Community Development 8/2/2021 WAYNE TURK 8531 E MARGINAL WAY S TUKWILA, WA 98108 RE: Permit Application No. D19-0311 STAR FORGE, LLC 8531 E MARGINAL WAY S Dear WAYNE TURK, Allan Ekberg, Mayor Nora Gierloff, Director In reviewing our current application files, it appears that your permit applied for on 9/25/2019, has not been issued by the City of Tukwila Permit Center. Per the International Building Code, International Mechanical Code, Uniform Plumbing Code and/or National Electrical Code every permit application not issued within 180 days from the date of application shall expire and become null and void. Currently your application has a status of UNDER REVIEW and is due to expire on 9/25/2021. If you still plan to pursue your project, you are hereby advised to do one of the following: 1) If the plan review is complete for the project and your application is approved, you may pick up the application before the date of expiration. At the time of permit issuance the expiration date will automatically be extended 180 days. -or- 2) If the plan review is not completed submit a written request for application extension (7) seven days in advance of the expiration date. Address your extension request to the Building Official and state your reason(s) for the need to extend your application. The Building Code does allow the Building Official to approve one extension of up to 90 days. If it is determined that your extension request is granted, you will be notified by mail. In the event that we do not receive your written request for extension or request is denied, your permit application will expire and your project will require a new permit application, plans and specifications, and associated fees. Thank you for your cooperation in this matter. Sincerely, Amy Wardian Permit Technician File No: D19-0311 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 °City of Tukwila Department of Community Development December 20, 2021 WAYNE TURK 8531 E MARGINAL WAY S TUKWILA, WA 98108 RE: Correction Letter # 3 DEVELOPMENT Permit Application Number D19-0311 STAR FORGE, LLC - 8531 E MARGINAL WAY S Allan Ekberg, Mayor Nora Gierloff, Director Dear WAYNE TURK, This letter is to inform you of corrections that must be addressed before your development permit can be approved. The expiration date on your permit is 3/25/2022, please send an email to permits@tukwilawa.gov or call the Permit Center at 206-431-3670 if expiring within the next 30 days and you wish to extend. 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: PLANNING - C DEPARTMENT: Nancy Eklund at if you have questions regarding these comments. • The Department of Community Development (DCD) is unable to continue reviewing the demolition permit application D19-0311 for Star Forge until the SEPA determination is issued for application E19-0008. The City Fire Marshall and the Department of Ecology support a plan that removes the underground storage tanks. Given that UST removal was not part of the original SEPA submittal, and numerous other documentation about site conditions have been submitted since the original SEPA materials were submitted, the City has requested that the SEPA be updated to reflect the current plan, and that the SEPA be again released for public comment. Once the SEPA determination has been issued, DCD will continue review of D 19-0311. PW - C DEPARTMENT: Joanna Spencer at 206-431-2440 if you have questions regarding these comments. • PER PLANNING DEPT. PW IS UNABLE TO PROCEED WITH REVIEW UNTIL SEPA DOCUMENT ARE RESUBMITTED AND SEPA IS APOROVED. Please address the comments above in an itemized format with applicable revised plans, specifications, and/or other documentation. The City requires that two (2) 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 'Correction 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. Sincerely, 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 Shana Markstrom Permit Technician File No. D19-0311 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 April 5, 2021 Rachelle Sagen Permit Supervisor Department of Community Development City of Tukwila 6300 Southcenter Boulevard, Suite 100 Tukwila, Washington 98188 CORRECTION LT RIL/ t 9` —..g., r) ION "HI 3 Environmental . RErE1VED CITY OF TUKWILA 1 4 ii PERMIT CENTER SUBJECT: RESPONSES TO CORRECTION LETTER # 1, DATED OCTOBER 18, 2019 and CORRECTION LETTER #2 JANUARY 22, 2020 for Permit Application Number D19-0311 8531 East Marginal Way South, Tukwila, Washington 98108, Parcel ID No. 0001600023 The following responses to the City of Tukwila Correction Letter Number 1, dated October 18, 2019 and Correction Letter #2 dated January 22, 2020 are being provided by DH Environmental, Inc. on behalf of StarForge, LLC in support of Permit Application Number D19-0311, submitted on September 25, 2019. These responses replace previously submittal provided to the City of Tukwila on 10/28/2019. This letter provides addition information and modifications to the original responses based on discussion and agreements made with the Department of Ecology since the original submittal. On March 1, 2021, the Department of Ecology approved the Former Jorgensen Forge Facility Demolition Work Plan Revision 02. CORRECTION LETTER #1 — OCTOBER 18, 2019 BUILDING DEPARTMENT—ALLEN JOHANNESSEN 1. Provide the following as requested in the pre-app meeting. a. The basements to remain shall be filled with compacted fill. An engineer shall specify the compacted fill -method with special inspections. Those inspections shall be included in the demo permit. Concrete floor ofthe basements shall have drainage holes at differentlocations to allow for moisture drainage of the filled basement. RESPONSE: The Property consists of multiple pits and one basement under the main office building. All pits and the basement will be filled with compacted fill material prior to demolition as specified by a licensed engineer. The pits with concrete floors should not be drilled to allow drainage because the pits will be filled and paved with asphalt, which will prevent stormwater infiltration. Additionally, this Property is a known contaminated site thatis regulated by the Washington State Model Toxics Control Act. Therefore, we should avoid providing a conduit for stormwater to infiltrate into the underlying soil and/or groundwater. Attachment 1 of this submittal includes the Former Jorgensen Forge Facility Demolition Work Plan Revision 02 (Demolition Plan) prepared by DH Environmental, Inc and CGI Construction Group International. Refer to the Demolition Plan, Attachment 2 Fill Specifications Letter and Attachment 3 Fill Material Sampling Work Plan. The requirements and details for suitable fill material, compacted fill method, and special inspections to be completed by a qualified third -party inspection firm are included here as Attachment 2, signed by a Washington State Licensed Engineer, Sean Duffy. This letter is titled DH Environmental, Inc. 11011 SW Klickitat Way, Suite 107 ( Seattle, WA 98134 Di° 11 )L.I—L Environmental "Support of Correction Letter #1 Development Permit Application Number D19-0311". Special inspections will be completed by a qualified third -party inspection firm. b. Provide all the documentation from the EPA and all other legal documents specifying the approval for keeping the basements intact. RESPONSE: Per email confirmation dated March 1, 2021, the Washington State Department of Ecology has approved the site Demolition Plan. The plan includes details related to final disposition of all site pits and basements, as well as discussion of final surface stabilization and general site conditions. The approval email from Maureen Sanchez, with the Department of Ecology is included as Attachment 3. Per the approved Demolition Plan, after the pits and exposed soil areas are filled, compacted, and temporarily covered, the structures will be deconstructed following any special requirements detailed in the pre -demolition engineering survey. The site will then be cleared of demolition debris and dust. Finally, four inches of asphalt pavement will be laid over previously covered areas of the Property (which consist of the recently filled pits, vaults, trenches, and exposed soil areas). These areas will be crowned so water will be directed to the existing stormwater collection system on -site. Other previously covered areas of the property are concrete slab on grade and will remain intact. A Washington State licensed engineer will inspect the storm system at the conclusion of demolition activities to verify the system components are functioning adequately and may work with CGI during the demolition process to ensure the condition of the site at completion of demolition supports appropriate drainage. c. A site plan shall be provided fordocumentation_ and showing .the .location of the basements to remain for record. RESPONSE: The Ecology -approved Demolition Plan includes Figure 4, Planimetric Survey of Site Pits, as an 11x17-inch figure that includes the location of the existing pits and basement that will be filled as part of the demolition activities. 2. In addition to item #1, provide a schedule to indicate the proposed scheduled sequence of buildings to be removed. RESPONSE: The approved Demolition Plan includes Figure 1 - Demolition Plan Site Map and Sequencing Plan as 11x17-inch figure, that outlines the buildings to be demolished during each phase of work completed sequentially. The approved Demolition Plan also includes Figure 2 Tentative Schedule, a Gannt chart that was developed by CGI. A substantially similar schedule will be updated to reflect actual start date and progressive dates once the demolition permit is issued. 3. Land and survey maps are reduced size sheets making fonts and other similar information difficult if not impossible to read. Please do not send reduced sized sheets and document shall be legible and to scale, no exceptions. RESPONSE: Attachment 4 Utility Locate Maps that have been reprinted as the maximum size 24x36-inch. These figures include the surveyed location of Property features including, but not limited to, existing buildings, utilities, and proposed utility capping locations. DH Environmental, Inc. 1 1011 SW Klickitat Way, Suite 107 Seattle, WA 9E134 2 13 MI5 Environmental ' PUBLIC WORKS DEPARTMENT — DAVID MCPHERSEN 1. Provide a completed Public Works permit fee estimate sheet(PW Bulletin Enclosed). (For Public Works activities to include — EROSION CONTROL and WATER and SANITARY SEWER CAPPING. RESPONSE: Attachment 5- includes the completed Public Works Bulletin A2 Type C Fee Estimate Worksheet. 2. Show Clearly all utilities and locations where these utilities are going to be capped. Provide full sized plan sheets (22"x34" or 24"x36") for review by Public Works. RESPONSE: Attachment 4 Utility Locate Maps that have been reprinted as the maximum size 24x36-inch. These figures include the surveyed location of Property features including, but not limited to, existing buildings, utilities, and proposed utility capping locations. 3. Since the storm system will be left active, please provide an engineering inspection/assessment/ evaluation that the system is working properly. RESPONSE: A Washington State Licensed engineer will inspect the storm system at the conclusion of demolition activities to verify the system components are functioning adequately. 4. For electrical service capping/removal contact SCL. RESPONSE: Star Forge, LLC engaged Seattle City Light, and the power has been terminated as of October 28, 2019. Contractors will be providing their own power, using generators, for the duration of the demolition activities. Verify this project has the required Notice of Intent (NOI) application form -construction Stormwater General Permit form Washington State DOE. Contact phone number for Ecology is 360-407-6556. RESPONSE: Attachment 6 — Email correspondence from Ben Billick with Ecology sent to Wayne Turk with Jorgensen Forge on October 23, 2019, documenting this demolition project does not require a construction stormwater general permit (CSGP). The site will continue to operate under the Industrial Stormwater General Permit (ISGP), Permit # WAR 003132, and Administrative Order # 18074 and 18160 throughout duration of the project. CORRECTION LETTER #2 — JANUARY 22, 2020 ■ Permit cannot be approved until SEPA is approved. E19-0008. • The Department of Community Development (DCD) is unable to continue reviewing the demolition permit application D19-0311 for Star Forge until the SEPA determination is issued for application E19-0008. The applicant's responses to Department of Ecology's comments on SEPA application E19-0008 have been forwarded to Ecology. Once the City receives a response back from DOE and a SEPA determination is issued, DCD will continue review of D19-0311. DH Environmental, Inc. 1011 SW Klickitat Way, Suite 107 ( Seattle, WA 98134 .3 rim Fs 5 Environmental P RESPONSE: On March 1, 2021, the Department of Ecology confirmed approval of the Former Jorgensen Forge Facility Demolition Work Plan Revision 02. This demolition plan addresses all comments originally identified by Ecology during the SEPA review process. Sincerely, David J. Hill, PE, CHMM, CPEA Principal DH Environmental, Inc Attachments: Attachment 1 - Attachment 2 Attachment 3 - Attachment 4 Attachment 5 - Attachment 6 - Former Jorgensen Forge Facility Demolition Work Plan Revision 02 — Support of Correction Letter #1 Development Permit Application Number D19 -0311 Demolition Plan approval email dated March 1, 2021 from Maureen Sanchez, Department of Ecology — Utility Locate Maps Completed Public Works Bulletin A2 Type C Fee Estimate Worksheet. Email correspondence from Ben Billick with Ecology regarding Construction Stormwater General Permit DH Environmental, Inc. 11011 SW Klickitat Way, Suite 107 I Seattle, WA 98134 4 City of Tukwila Department of Community Development 2/9/2021 WAYNE TURK 8531 E MARGINAL WAY S TUKWILA, WA 98108 RE: Permit Application No. D19-0311 STAR FORGE, LLC 8531 E MARGINAL WAY S Dear WAYNE TURK, Allan Ekberg, Mayor Jack Pace, Director In reviewing our current application files, it appears that your permit applied for on 9/25/2019, has not been issued by the City of Tukwila Permit Center. Per the International Building Code, International Mechanical Code, Uniform Plumbing Code and/or National Electrical Code every permit application not issued within 180 days from the date of application shall expire and become null and void. Currently your application has a status of COMMENTS OUT and is due to expire one 3/25/2021. If you still plan to pursue your project, you are hereby advised to do one of the following: 1) If the plan review is complete for the project and your application is approved, you may pick up the application before the date of expiration. At the time of permit issuance the expiration date will automatically be extended 180 days. -or- 2) If the plan review is not completed submit a written request for application extension (7) seven days in advance of the expiration date. Address your extension request to the Building Official and state your reason(s) for the need to extend your application. The Building Code does allow the Building Official to approve one extension of up to 90 days. If it is determined that your extension request is granted, you will be notified by mail. In the event that we do not receive your written request for extension or request is denied, your permit application will expire and your project will require a new permit application, plans and specifications, and associated fees. Thank you for your cooperation in this matter. Sincerely, Laurie Werle Permit Technician File No: D19-0311 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 110 MARTEN LAW March 10, 2020 Via E-Mail and Certified Mail RECEIVED MAR 12 2020 DEVELOPMENT Lynn Miranda Planning Supervisor Department of Community Development 630o Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Lynn.Miranda@TukwilaWA.gov RE: Request for extension of application for Demolition Permit No. Di9-o311 ("Permit"), for Jorgensen Forge Facility at 8531 E. Marginal Way South, Tukwila Dear Ms. Miranda This request is submitted on behalf of our client, Star Forge, LLC ("the Company"), to request a go -day extension of the City's consideration of Permit Application No. Dig-o311("Application") for demolition of buildings at the former Jorgensen Forge Facility, located at 8531 E. Marginal Way South. The reason the Company seeks this extension is to resolve issues raised by the Washington Department of Ecology ("Ecology") during its SEPA review of the Company's demolition permit application, including in letters submitted by Ecology to the City on February 11, 2020 and November 18, 2019. The Company has been diligently working with Ecology to address the issues it has raised in its letters and in other correspondence and will submit a revised SEPA Checklist to the City this week addressing all of those issues. Please do not hesitate to contact me if you have any questions or need any further information in support of this request. Thank you for your consideration. Sincerely, 3/k/k/.4. Bradley M. Marten Direct: (206) 292-2604 Email: bmarten@martenlaw.com Request for Permit Application Extension # Current Expiration Date: 3-a s'2-o 2-d Extension Request: rApproved for 7(d Denied (provide explanation) days Signature/initials Cd(A r D - 206 . 292. 2604 1 E - bmarten@martenlaw.com l 1191 Second Ave, Suite 2200, Seattle, WA 98101 Ms. Villegas March 18, 2020 Page 2 CC: Andrew Tsoming (City Attorney) James Robertson (Star Forge) Stephen Busby (Star Forge) City of Tukwila Department of Community Development 2/3/2020 WAYNE TURK 8531 E MARGINAL WAY S TUKWILA, WA 98108 RE: Permit Application No. D19-0311 STAR FORGE, LLC 8531 E MARGINAL WAY S Dear WAYNE TURK, Allan Ekberg, Mayor Jack Pace, Director In reviewing our current application files, it appears that your permit applied for on 9/25/2019, has not been issued by the City of Tukwila Permit Center. Per the International Building Code, International Mechanical Code, Uniform Plumbing Code and/or National Electrical Code every permit application not issued within 180 days from the date of application shall expire and become null and void. Currently your application has a status of COMMENTS OUT and is due to expire on 3/25/2020. If you still plan to pursue your project, you are hereby advised to do one of the following: 1) If the plan review is complete for the project and your application is approved, you may pick up the application before the date of expiration. At the time of permit issuance the expiration date will automatically be extended 180 days. -or- 2) If the plan review is not completed submit a written request for application extension (7) seven days in advance of the expiration date. Address your extension request to the Building Official and state your reason(s) for the need to extend your application. The Building Code does allow the Building Official to approve one extension of up to 90 days. If it is determined that your extension request is granted, you will be notified by mail. In the event that we do not receive your written request for extension or request is denied, your permit application will expire and your project will require a new permit application, plans and specifications, and associated fees. Thank you for your cooperation in this matter. Sincerely, Elisa Villegas Permit Technician File No: D19-0311 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 City of Tukwila Department of Community Development January 22, 2020 WAYNE TURK 8531 E MARGINAL WAY S TUKWILA, WA 98108 RE: Correction Letter # 2 DEVELOPMENT Permit Application Number D19-0311 STAR FORGE, LLC - 8531 E MARGINAL WAY S Dear WAYNE TURK, 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: PLANNING - C DEPARTMENT: Lynn Miranda at 206-433-7162 if you have questions regarding these comments. • Permit cannot be approved until SEPA is approved. E19-0008. • The Department of Community Development (DCD) is unable to continue reviewing the demolition permit application D19-0311 for Star Forge until the SEPA determination is issued for application E19-0008. The applicant's responses to Department of Ecology's comments on SEPA application E19-0008 have been forwarded to Ecology. Once the City receives a response back from DOE and a SEPA determination is issued, DCD will continue review of D19-0311. Please address the comments above in an itemized format with applicable revised plans, specifications, and/or other documentation. The City requires that two (2) sets of revised plan pages, specifications and/or other documentation lbe 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. Sincerely, `Q.Q Bill Rambo Permit Technician File No. D19-0311 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 SoundEa Strategies SoundEarth Strategies, Inc. 2811 Fairview Avenue East, Suite 2000 Seattle, Washington 98102 FINAL October 28, 2019 Rachelle Ripley, Permit Coordinator Department of Community Development City of Tukwila 6300 Southcenter Boulevard, Suite 100 Tukwila, Washington 98188 SUBJECT: RESPONSES TO CORRECTION LETTER # 1, DATED OCTOBER 18, 2019 Permit Application Number D19-0311 8531 East Marginal Way South, Tukwila, Washington 98108 Parcel ID No. 0001600023 The following responses to the City of Tukwila Correction Letter Number 1, dated October 18, 2019, are being provided by SoundEarth Strategies, Inc. on behalf of Star Forge, LLC in support of Permit Application Number D19-0311, submitted on September 25, 2019. BUILDING DEPARTMENT—ALLEN JOHANNESSEN 1. Provide the following as requested in the pre-app meeting. a. The basements to remain shall be filled with compacted fill. An engineer shall specify the compacted fill -method with special inspections. Those inspections shall be included in the demo permit. Concrete floor of the basements shall have drainage holes at different locations to allow for moisture drainage of the filled basement. RESPONSE: The Property consists of multiple pits and one basement under the main office building. All pits and the basement will be filled with compacted fill material prior to demolition as specified by a licensed engineer in Attachment Al. The pits with concrete floors should not be drilled to allow drainage because the pits will be filled and capped with asphalt, which will prevent stormwater infiltration. Additionally, this Property is a known contaminated site that is regulated by the Washington State Model Toxics Control Act;, so providing a conduit for stormwater to infiltrate into contaminated soil should be avoided using the planned filling and capping activities. Attachment Al includes the suitable fill material, compacted fill method, and special inspections. signed by a Washington State Licensed Engineer, Sean Duffy. This letter is titled Support of Correction Letter #1 Development Permit Application Number D19-0311. Special inspections will be completed by a qualified third -party inspection firm. RECEIVED CITY OF TUKWILA OCT 2 8 2019 PERMIT CENTER www.soundearthinc.com 1866.850.1900 "Always do right. This will gratify some people and astonish the rest." -Mark Twain DVi- 011 FINAL City of Tukwila October 28, 2019 b. Provide all documentation from the EPA and all other legal documents specifying the approval for keeping the basements intact. RESPONSE: Capping in place (asphalt or concrete) is recognized by the US Environmental Protection Agency (EPA) as an Engineering Control method to prevent the migration of soil and groundwater contaminants. Capping in place is "the use of paved areas (e.g., parking lots, roadways) and building foundations as surface barriers or caps over contaminated soil. Capping in place involves creating and maintaining a hard surface, usually concrete or asphalt, over contamination. The result is a high strength, low permeability cover that reduces surface water infiltration and stabilizes contaminated soils. As a result, the cap prevents contact with the contaminated soil and contaminant mobility is limited protecting ground water.' (More information on Engineering Controls at Brownfields is provided by the EPA at the following website and is included as Attachment B1: https://www.epa.gov/sites/production/files/2015- 09/documents/ec jnformation_guide.pdf. c. A site plan shall be provided for documentation and showing the location of the basements to remain for record. RESPONSE: Attachment Cl includes Figure 4, Pit Map, as an 11x17-inch figure. The Pit Map includes the location of the existing pits and basement that will be filled as part of the demolition activities. 2. In addition to item #1, provide a schedule to indicate the proposed scheduled sequence of buildings to be removed. RESPONSE: Attachment D1 includes Figure 5A, Construction Group International, LLC (CGI) Logistics and Phasing Plan, as an 11x17-inch figure, that outlines the buildings to be demolished during each phase of work completed sequentially. The schedule, Figure 5B, includes a Gannt chart that was developed by CGI for bidding purposes and is dependent on the permit issuance date. A substantially similar schedule, updated to reflect the actual start date, will be made. 3. Land and survey maps are reduced size sheets making fonts and other similar information difficult if not impossible to read. Please do not send reduced -sized sheets. Plan sheets and documents shall be legible and to scale, no exceptions. RESPONSE: Attachment El includes Figures 3A, 3B, and 3C that have been reprinted as the maximum size 24x36-inch. These figures include the surveyed location of Property features including, but not limited to, existing buildings, utilities, and proposed utility capping locations. 1 US Environmental Protection Agency. (2010). Engineering Controls on Brownsfields Information Guide: How They Work with Institutional Controls; the Most Common Types Used; and an Introduction to Costs. Engineering Controls Fact Sheet. EPA-560-F-10-005. November. SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation \0995.002 Jorgensen Forge\Deliverables\0995-002-06 Permitting\Construction Permit Application \Tukwila Comment and Response \0995-002_Response Letter_F.doa Page 12 FINAL City of Tukwila October 28, 2019 PUBLIC WORK DEPARTMENT—DAVID MCPHERSEN 1. Provide a completed Public Works permit fee estimate sheet (PW Bulletin A2 enclosed). (For Public Works activities to include — EROSION CONTROL, AND WATER & SANITARY SEWER CAPPING. RESPONSE: Attachment F1 includes the completed Public Works Bulletin A2 Type C Fee Estimate Worksheet. 2. Show clearly all utilities and locations where these utilities are going to be capped. Provide full sized plan sheets (22'x 34" or 24"x36") for review by Public Works. RESPONSE: See Attachment El that includes the proposed utility capping locations. These figures are provided as 24x36-inch size (see response to Number 3 above). 3. Since the storm system will be left active, please provide an engineering inspection/assessment/evaluation that the system is working properly. RESPONSE: A Washington State licensed engineer will inspect the storm system at the conclusion of demolition activities to verify the system components are functioning adequately. 4. For electrical service capping/removal contact SCL. RESPONSE: Star Forge, LLC has initiated electrical service removal and capping with Seattle City Light. Power will be terminated at the Property on October 28, 2019. Contractors will be providing their own power, using generators, for the duration of the demolition activities. Verify this project has the required Notice of Intent (N01) application form -construction Stormwater General Permit from Washington State DOE. Contact phone number for Ecology is 360-407-6556. RESPONSE: Attachment G1 includes the email correspondence from Ben Billick with Ecology sent to Wayne Turk with Jorgensen Forge on October 23, 2019, documenting this demolition project: does not require a construction stormwater general permit (CSGP). Respectfully, SoundEarth Strategies, Inc. Mindy Graddon, LG, PMP Annika Wallendahl, PE, LG, MBA Associate Geologist Principal Attachments: Al, Support of Correction Letter #1 Permit Application Number D19-0311, prepared by Harris Group, dated October 22, 2019 B1, EPA Engineering Controls on Brownfields Information Guide Cl, Figure 4, Pit Map D1, Figure 5A, CGI Logistics and Phasing Plan, and Figure 5B, CGI Jorgensen Forge Schedule 9.6.19 El, Figure 3A, Utility Location Map Figure 3B, Utility Location Map West SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-002-06 Permitting \Construction Permit Application\Tukwila Comment and Response \0995-002 Response Letter F.doca Page 13 FINAL City of Tukwila October 28, 2019 Figure 3C, Utility Location Map East F1, Public Works Bulletin A2 Type C Fee Estimate Worksheet G1, Email from Ben Billick with Ecology sent to Wayne Turk with Jorgensen Forge on October 23, 2019 SoundEarth Strategies, Inc. P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge \ Deliverables \0995-00206 Permitting\Construction Permit Application \Tukwila Comment and Response \0995-002 Response Letter_F.doa Page 14 From: Annika Wallendahl To: Mindy Graddon Subject: FW: Follow -Up Re: Stormwater Permitting at Jorgensen Forge Date: Wednesday, October 23, 2019 4:59:56 PM Please print and include in the correction response. From: Billick, Ben (ECY) <BBIL461@ECY.WA.GOV> Sent: Wednesday, October 23, 2019 10:23 AM To: wturk@jorgensenforge.com; Annika Wallendahl <AWallendahl@soundearthinc.com> Cc: mhoman@jorgensenforge.com; Harvey, Katy (ECY) <KGIB461@ECY.WA.GOV>; Sanchez, Maureen (ECY) <MASA461@ECY.WA.GOV> Subject: RE: Follow -Up Re: Stormwater Permitting at Jorgensen Forge Hello Wayne and Annika, Following up on my email below and my conversation with Annika last week about permitting for demolition activities at Jorgensen/Star Forge. Annika, based on our conversation it is my understanding that prior to any demolition of structures at the site, the pits inside the buildings will be filled and capped and all exposed soils will be paved. As a result, bare soils will not be exposed to precipitation during or after demolition. Operation of the treatment system and sampling under the ISGP will also continue during demolition activities. I provided this information to Ecology's Construction Stormwater General Permit (CSGP) Writer, and she confirmed that you do not need to obtain CSGP coverage for the demolition activities. Please let me know if I misunderstood your demolition plans or if your plans for demolition change, as that could affect the permit coverage determination. Please don't hesitate to contact me it you have any questions. Regards, Ben Billick Senior Water Quality Inspector Department of Ecology, Northwest Regional Office Office: (425) 649-7059 ; Celli: (425) 999-0642 bbil461Pecy.wa.g_ov From: Billick, Ben (ECY) Sent: Tuesday, October 15, 2019 4:03 PM To:'wturk@jorgensenforge.com' <wturkPjorgensenforge.com> Cc: 'mhoman@jorgensenforge.com' <mhoman@jorgensenforge.com>; 'awallendahl@soundearthinc.com' <awallendahk soundearthinc.com>; Harvey, Katy (ECY) <KGlB461PECY.WA.GOV>; Sanchez, Maureen (ECY) <masa461PECY.WA.GOV> Subject: Follow -Up Re: Stormwater Permitting at Jorgensen Forge p1°\�0�11 Hello Wayne, I am writing to follow-up on the question of stormwater permitting at the Jorgensen Forge/Star Forge facility. Attached please find a copy of my report for the inspection I conducted in July to assess the facility's future eligibility for terminating Industrial Stormwater General Permit (ISGP) coverage. I apologize for the delay in getting this report issued. As described in the report, the plans for clean closure and vacating the site that you described during the inspection should make the facility eligible to terminate coverage under the ISGP. However, I recently learned from my colleagues in Ecology's Hazardous Waste and Toxics Cleanup Programs that Star Forge's plans for vacating the site have changed. Specifically, I was told that Star Forge will now be demolishing buildings on -site prior to the sale of the property. These activities could impact stormwater permitting requirements at the facility. Based on the description of the planned demolition activities that I received, it sounds to me as though you may need coverage under Ecology's Construction Stormwater General Permit (CSGP) before you can begin the work. Could you Please provide me with additional information on the specific demolition activities that are Planned. and how stormwater will be managed during these activities. as soon as possible? I understand that Star Forge is trying to get this work done quickly, so it is important to get this sorted out sooner rather than later. Thanks, and please don't hesitate to call if you have any questions. Regards, Ben Billick Senior Water Quality Inspector Department of Ecology, Northwest Regional Office Office: (425) 649-7059 ; Cell: (425) 999-0642 bbiI461Pecv.wa.gov City of Tukwila Department of Community Development October 18, 2019 WAYNE TURK 8531 E MARGINAL WAY S TUKWILA, WA 98108 RE: Correction Letter # 1 DEVELOPMENT Permit Application Number D 19-0311 STAR FORGE, LLC - 8531 E MARGINAL WAY S Dear WAYNE TURK, 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: Allen Johannessen at 206-433-7163 if you have questions regarding these comments. • (GENERAL INFORMATION NOTE) PLAN SUBMITTALS: (Min. size 11 x 17 to a preferably maximum size of 24x36; all sheets shall be the same size; larger sizes may be negotiable. "New revised" plan sheets shall be the same size sheets as those previously submitted.) "STAMP AND SIGNATURES" (If applicable) For Engineers: "Every page of a plan set must contain the seal/stamp, signature of the licensee(s) who prepared or who had direct supervision over the preparation of the work, and date of signature. Specifications that are prepared by or under the direct supervision of a licensee shall contain the seal/stamp, signature of the licensee and the date of signature. If the "specifications" prepared by a licensee are a portion of a bound specification document that contains specifications other than that of an engineering or land surveying nature, the licensee need only seaUstamp that portion or portions of the documents for which the licensee is responsible." It shall not be required to have each page of "specifications" (calculations) to be stamped and signed; Front page only will be sufficient (WAC 196-23-010 & 196-23-020). Architects: "date" only not required (WAC 308-12-081). (BUILDING REVIEW NOTES) 1. Provide the following as requested in the pre-app meeting. * "The basements to remain shall be filled with compacted fill. An engineer shall specify the compacted fill - method with special inspections. Those inspections shall be included in the demo permit. Concrete floor of the basements shall have drainage holes at different locations to allow for moisture drainage of the filled basement." * "Provide all documentation from the EPA and all other legal documents specifying the approval for keeping the basements intact." * "A site plan shall be provided for documentation and showing the location of the basements to remain for record." 2. In addition to item # 1, provide a schedule to indicate the proposed scheduled sequence of buildings to be removed. 3. Land and survey maps are reduced size sheets making fonts and other similar information difficult if not impossible to read. Please do not send reduced size sheets. Plan sheets and documents shall be legible and to scale, no exceptions. Note: Contingent on response to these corrections, further plan review may request for additional corrections. 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 PW DEPARTMENT: Dave McPherson at 206-431-2448 if you have questions regarding these comments. • PLAN REVIEWER: Contact David McPherson at (206) 431-2448, if you have any questions/comments regarding the following comments. David.McPherson@TukwilaWA.gov 1. Provide a completed Public Works permit fee estimate sheet (PW Bulletin A2 enclosed). (For Public Works activities to include — EROSION CONTROL, AND WATER & SANITARY SEWER CAPPING. 2. Show clearly all utilities and locations where these utilities are going to be capped. Provide full sized plan sheets (22'x 34" or 24"x36") for review by Public Works. 3. Since the storm system will be left active, please provide an engineering inspection/assessment/evaluation that the system is working properly. 4. For electrical service capping/removal contact SCL. 5. Verify this project has the required Notice of Intent (NOI) application form -construction Stormwater General Permit from Washington State DOE. Contact phone number for Ecology is 360-407-6556. Public Works contact for sanitary sewer & water information. Pat Brodin, P.E. (Development Manager) City of Tukwila Public Works Department (206) 431-2441 pat.brodin@tukwilawa.gov Public Works contact for NPDES information. Greg Villanueva (NPDES Coordinator) 6300 Southcenter Boulevard Tukwila, WA 98188-2544 206-431-2442 Office / 206-571-6321 Cell greg.villanueva@tukwilawa.gov Please address the comments above in an itemized format with applicable revised plans, specifications, and/or other documentation. The City requires that two (2) 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. Sincerely, Bill Rambo Permit Technician File No. D19-0311 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 PERMIT COORD COP PLAN REVIEW/ROUTING SLIP PERMIT NUMBER: D19-0311 DATE: 7/17/ ' _ PROJECT NAME: Star Forge, LLC SITE ADDRESS: 8531 E Marginal Way S Original Plan Submittal Revision # before Permit Issued X Response to Correction Letter # 3 Revision # after Permit Issued DEPARTMENTS: Building Division ri I Public Worlds !l� Fire Prevention Structural TDd ,v oT ,SS v& Planning Division (jam ❑ Permit Coordinator PRELIMINARY REVIEW: Not Applicable ❑ (no approval/review required) DATE: Structural Review Required REVIEWER'S INITIALS: DATE: El APPROVALS OR CORRECTIONS: DUE DATE: 8/14/2023 Approved Approved with Conditions ri Fire Fees Apply El Corrections Required ❑ Denied ❑ (corrections entered in Reviews) (ie: Zoning Issues) Notation: REVIEWER'S INITIALS: DATE: Permit Center Use Only CORRECTION LETTER MAILED: Departments issued corrections: Bldg ❑ Fire ❑ Ping ❑ PW ❑ Staff Initials: 12/18/2.013 PERMIT COORD COP', PLAN REVIEW/ROUTING SLIP PERMIT NUMBER: D19-0311 PROJECT NAME: Star Forge, LLC SITE ADDRESS: 8531 E Marginal Way S Original Plan Submittal DATE: 4,11 Revision # before Permit Issued X Response to Correction Letter # 1 to REV 1 Revision # after Per it issue° DEPARTMENTS: Building Division n Fire Prevention Public Works Structural d ,for issue._ UP r< L. A. F r( 1!2Y12, g9 40C- 71"9�23 Planning Division Permit Coordinator PRELIMINARY REVIEW: DATE: Not Applicable n (no approval/review required) Structural Review Required REVIEWER'S INITIALS: DATE: APPROVALS OR CORRECTIONS: Approved Corrections Required ❑ ❑ (corrections entered in Reviews) DUE DATE: 8/14/2023 Approved with Conditions Denied (ie: Zoning Issues) Fire Fees Apply Notation: REVIEWER'S INITIALS: DATE: Permit Center Use Only CORRECTION LETTER MAILED: Departments issued corrections: Bldg ❑ Fire ❑ Ping ❑ PW ❑ Staff Initials: 12/18/2013 PLAN REVIEW/ROUTING SLIP PERMIT NUMBER: D19-0311 DATE: 07/01/21 PROJECT NAME: Star Forge, LLC SITE ADDRESS: 8531 E Marginal Way S Original Plan Submittal X Revision # 1 before Permit Issued Response to Correction Letter # Revision # after Permit Issued DEPARTMENTS: i;LS ,A JC Building Division 1 J36 C2 fot 0/ /2( Public Works 601 kik 7(»f)- ( Of, CO e&u 7/6 /2/ Fire Prevention Planning Division WI Structural ❑ Permit Coordinator PRELIMINARY REVIEW: DATE: 07/06/21 Not Applicable ❑ Structural Review Required (no approval/review required) REVIEWER'S INITIALS: DATE: APPROVALS OR CORRECTIONS: Approved ❑ DUE DATE: 09/07/21 Approved with Conditions Corrections Required ❑ Denied ❑ (corrections entered in Reviews) (ie: Zoning Issues) Fire Fees Apply El Notation: REVIEWER'S INITIALS: DATE: Permit Center Use Only CORRECTION LETTER MAILED: Departments issued corrections: Bldg ❑ Fire 0 Ping ❑ PW ❑ Staff Initials: 12/18/2013 PLAN REVIEW/ROUTING SLIP PERMIT NUMBER: D19-0311 PROJECT NAME: Star Forge LLC SITE ADDRESS: 8531 E Marginal Way S Original Plan Submittal X Response to Correction Letter # 1 & 2 DATE: 04/14/21 Revision # Revision # before Permit Issued after Permit Issued DEPARTMENTS: fLS Building Division Public Works Fire Prevention Structural N6 c°,e R &a 7V2I ❑ Planning Division ❑ Permit Coordinator PRELIMINARY REVIEW: Not Applicable ❑ (no approval/review required) REVIEWER'S INITIALS: DATE: 04/15/21 Structural Review Required DATE: El APPROVALS OR CORRECTIONS: Approved ❑ Corrections Required (corrections entered in Reviews) Approved with Conditions Denied (ie: Zoning Issues) DUE DATE: 06/10/21 Fire Fees Apply [1 Notation: REVIEWER'S INITIALS: DATE: Permit Center Use Only CORRECTION LETTER MAILED: Departments issued corrections: Bldg ❑ Fire ❑ Ping ❑ PW ❑ Staff Initials: 12/18i2013 PLAN REVIEW/ROUTING SLIP PERMIT NUMBER: D19-0311 DATE: 10/30/2019 PROJECT NAME: STARFORGE, LLC SITE ADDRESS: 8531 E MARGINAL WAY S Original Plan Submittal X Response to Correction Letter # 1 Revision # before Permit Issued Revision # after Permit Issued DEPARTMENTS: PCJ P(W / tit Building Division r kt\tlittiblic Works Fire Prevention Structural 111 1A4 Cori11±11 Planning Division ❑ Permit Coordinator PRELIMINARY REVIEW: DATE: 10/31/19 Not Applicable ❑ Structural Review Required (no approval/review required) REVIEWER'S INITIALS: DATE: APPROVALS OR CORRECTIONS: Approved Corrections Required (corrections entered in Reviews Notation: 111 Approved with Conditions Denied (ie: Zoning Issues) DUE DATE: 11/28/2019 111 REVIEWER'S INITIALS: DATE: Permit Center Use Only CORRECTION LETTER MAILED: Departments issued corrections: Bldg ❑ Fire ❑ Pingr PW ❑ Staff Initials: 12/18/2013 MIT COORD COP? PLAN REVIEW/ROUTING SLID' PERMIT NUMBER: D19-0311 PROJECT NAME: STAR FORGE, LLC SITE ADDRESS: 8531 E MARGINAL WAY S X Original Plan Submittal Response to Correction Letter # DATE: 10/01/2019 Revision # Revision # before Permit Issued after Permit Issued DEPARTMENTS: uildicow ►O-i-1 �� �. �b �� n Division Fire Prevention PlanningDivision g ® bovi Co riZ 1-1 °I Public Works Structural ❑ Permit Coordinator n PRELIMINARY REVIEW: Not Applicable ❑ (no approval/review required) REVIEWER'S INITIALS: DATE: 10/01/19 Structural Review Required APPROVALS OR CORRECTIONS: Approved Corrections Required n n (corrections entered in Reviews) Approved with Conditions Denied (ie: Zoning Issues) DATE: DUE DATE: 10/29/2019 n Notation: REVIEWER'S INITIALS: DATE: Permit Center Use Only CORRECTION LETTER MAILED: 10 V 1 1 Departments issued corrections: Bldg' Fire ❑ Ping 0 PW ( Staff Initials: 12/18/2013 City of Tukwila Allan Ekberg, Mayor Department of Community Development Nora Gierloff, Director Revision submittals must be submitted via paper if started as paper at the Permit Center. Revisions must be attached to your permit if started electronically at Construction Permits (aspgov.com). Please notify staff of your submittal by emailing permits@tukwilawa.gov Correction Letter #1 to Revision 1: Permit Application Number: D19-0311 STAR FORGE, LLC - 8531 E MARGINAL WAY S Contact Name: Wayne Turk Contact Phone: 206-255-8177 Contact Email: wturk@jorgensenforge.com RECEIVE© JUL17 2023 Community Development Summary of Corrections: See responses below and associated attached documents. 1. The SEPA determination was issued on 07/13/2023 (attachment 1). 2. City of Tukwila Fire Permit # F23-0135 was issued on 5/26/2023 (attachment 2). Permit is for the decommisioning and removal of 18 UST's and 2 AST's. The pre -construction meeting was held with Eric Pritchard on 7/11/2023, and the projected start date is 08/01/2023. 3. The Department of Ecology has issued a determination that the project is not required to obtain coverage under the Constuction Stormwater General Permit, because the site is already being managed under an Industrial Stormwater General Permit (ISGP) and will continue to maintain compliance with the ISGP through the completion of the project (see email from Ben Billick of Ecology in attachment 3). CORRECTION 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 Attachment 1 SEPA Determination of Non -Significance RECEIVED JUL 17 Community Development CORRECTION LTR# 1 o v1 City of Tukwila Allan Ekberg, Mayor Department of Community Development - Nora Gierloff, AI CP, Director DETERMINATION OF NON -SIGNIFICANCE (DNS) File Number: E19-0008, Star Forge Demolition SEPA Applied: September 25, 2019 Issue Date: July 13, 2023 Applicant: Wayne Turk, Jorgensen Forge Lead Agency: City of Tukwila Description of Proposal: Address: Parcel Number: Star Forge is closing its manufacturing operations at their 20-acre facility and proposes to demolish 17 existing buildings totaling 323,118 square feet. Existing concrete foundations will remain in place, and concrete -lined equipment vaults will be filled to surface grade and paved with asphalt or covered before building demolition. The project also proposes to remove 18 underground storage tanks (USTs), decontaminate and/or remove concrete and asphalt slabs, and remove limited soil to facilitate paving. 8531 E. Marginal Way S. 0001600023 This notice is to confirm the decision reached by Tukwila's SEPA Official to issue a Determination of Non -significance (DNS) for the above project based on the environmental checklist and the underlying permit application. The City has determined that the proposal does not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 43.21c.030(2) (c). This decision was made after reviewing a completed environmental checklist and other information on file with the lead agency. This information is available to the public on request. Project materials including the application,any staff reports, and other studies related to the permits are available online at https://tukw- egov.aspgov.com/PZ/index.html (click on "Search..." in the upper left corner), or by contacting the project planner, Breyden Jager at (206) 431-3651 or Breyden.Jager@TukwilaWA.gov for further information. This DNS is issued under WAC 197-11-340(2). Comments on this Determination of Nonsignificance must be submitted to 6300 Southcenter Blvd, Suite 100, Tukwila, WA 98188 C/O Breyden Jager, or via email to Brevden.Jager@TukwilaWA.gov by July 27th, 2023. Tukwila City Hall • 6200 Southcenter Boulevard • Tukwila, WA 98188 • 206-433-1800 • Website: TukwilaWA.gov E19-0008 SEPA DNS July 13, 2023 The lead agency will not act on the proposal for 14 days (July 27th, 2023) from the DNS Issuance date. The City previously requested comments on the proposal during a nonformal SEPA consultation process. Comments received during that period have been considered here. The decision is appealable to the Superior Court pursuant to the Judicial Review of Land Use Decisions, Revised Code of Washington (RCW 36.70C). Any appeal shall be linked to a specific governmental action. The State Environmental Policy Act is not intended to create a cause of action unrelated to a specific governmental action. Appeals of environmental determinations shall be commenced within the time period to appeal the governmental action that is subject to environmental review (RCW 43.21C.075). Nora c,t,erLo �r 2023 Nora Gierloff, Responsible Official City of Tukwila 6300 Southcenter Blvd. Tukwila, WA 98188 (206) 431-3670 J vLl/ 13, Date Cc: Stacy Fox Nathan Moxley David Hill Wayne Turk James Robertson Ben Billick Maureen Sanchez Drew Imke Holly Borth David Puki Chul and Min Kim WA Office of the Governor US EPA US Army Corp of Engineers National Marine Fisheries Service King County Department of Natural Resources Puget SoundKeeper WA Department of Ecology Phone: 206-433-1800 • Email: Mayor@TukwilaWA.gov • Website: TukwilaWA.gov E19-0008 SEPA DNS July 13, 2023 WA Department of Natural Resources WA Dept of Ash & Wildlife WA State Attorney General King County Assessor's Office King County Watershed Coordination WRIA 9 Kind County Dev & Environmental Services Port of Seattle Cascade Water Alliance Seattle City Light Tukwila Public Works Department Tukwila Building Division Puget Sound Regional Fire Authority Muckleshoot Cultura► Resources Program Muckleshoot Fisheries Program Muckleshoot Wildlife Program Duwamish River Clean Up Coalition Duwamish Indian Tribe People for Puget Sound Tukwila Historical Society City of Renton City of Burien City of Seattle Phone: 206-433-1800 • Email: Mayor@TukwilaWA.gov • Website: TukwilaWA.gov Attachment 2 Fire Tank Removal Permit No. F23-0135 Parcel No: Address: City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Fire Marshal's Office Web site: http://www.TukwilaWA.gov/departments/fire-marshals-office FIRE PERMIT FIRE TANK - TANK REMOVAL OR ABANDONMENT PERMIT NUMBER:F23-0135 0001600023 Permit Number: F23-0135 8531 E MARGINAL WAY 5 Project Name: Star Forge Tank Removal Issue Date: 5/26/2023 Permit Expires On: 11/22/2023 Owner: Name: Address: Contact Person: Name: Address: Contractor: Name: Address: License No: STAR FORGE LLC 8531 E MARGINAL WAY S TUKWILA WA 98108 Wayne Turk Phone: (206) 762-1100 8531 E. Marginal Way S. Tukwila WA 98108 CONST GRP INTERNATIONAL LLC Phone: (425) 487-2618 19407 144TH AVE NE BLDG D WOODINVILLEWA 98072 CONSTGI953NA Expiration Date: 8/10/2023 DESCRIPTION OF WORK: Decommission, by removal, 18 USTs and 2 ASTs Project Valuation: $200,000.00 Type of Fire Protection: Sprinklers: Fire Alarm: Type of Construction: Electrical Service Provided by: Tukwila Fees Collected: $8,400.00 Occupancy per IBC: Water District: Tukwila Sewer District: Tukwila Fees Collected: Electrical Service Provided by: Water District: Sewer District: Current Codes adopted by the City of Tukwila: International Fire Code Edition: International Building Code Edition: International Residential Code Edition: International Mechanical Code Edition: Uniform Plumbing Code Edition: International Fuel Gas Code: 2018 2018 2018 2018 2018 2018 National Electrical Code: WA Cities Electrical Code: WAC 296-46B: WA State Energy Code: 2020 2020 2020 2018 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 local laws regulating construction or the performance of work. 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: FIRE CONDITIONS - A site investigation/assessment is required prior to taking a tank permanently out of service. - TANKS MAY BE REMOVED ONLY AFTER FIRE DEPARTMENT INSPECTION. - Two (2) 20 BC portable fire extinguishers are to be on site within 50 ft. of the operation. - Work are shall be cordoned off or be enclosed in a fenced yard. - "No Smoking" signs must be posted in readily visible locations. - Remove all flammable or combustible liquids from tank and from connecting lines. - Tanks shall be inerted and must be certified gas free by a Marine Chemist or Petroleum Industry Safety Engineer regularly engaged in that business, prior to removal. - All exterior above -grade fill and vent piping shall be permanently removed. - Tanks shall be disposed of in accordance with federal, state and local regulations. - Call twenty-four (24) hours prior to removal to arrange the required fire department inspections. PERMIT INSPECTIONS REQUIRED TANK REMOVAL FINAL [ ] Comment Date State of Washington Business Licensing Service PO Box 9034 Olympia, WA 98507-9034 360-705-6741 Underground Storage Tank Addendum (For new tanks and change in ownership) UBI number 604 027 650 Owner name Star Forge, LLC Ecology Use Only Site # Region FS # County This form must accompany a Business License Application. Keep a copy of the completed form and the instruction sheet for future reference. Tank site information See pages 1 and 2 of the instructions for proper codes. 1. Site Location Star Forge DBA Jorgensen Forge LLC (253)) 878-6415 PRINT or TYPE Site name 8531 E. Marginal Way S. On -site telephone number ( ) PRINT or TYPE Physical location of si Tukwila, WA 98108 Altemate number City, State, Zip code 2a. Tank Owner Information (if different than business owner) Star Forge DBA Jorgensen Forge LLC County Name (253 )878-6415 ( ) msanesi@jorgensenforge.cc Telephone number 8531 E. Marginal Way S. Alternate number Email address Mailing address Tukwila, WA 98108 City, State, Zip code 2b. Tank Operator Information (if different than tank owner) Name ( ) ( ) Telephone number Alternate number Email address Mailing address City, State, Zip code 2c. On -site Contact Person Matteo Sanesi Name 253 878-6415 ( ) msanesk jorgensenforge.a Telephone number 8531 F Marginal Way S Alternate number Email address Mailing address Tukwila WA 98108 City, State, Zip code For assistance or to request this document in an alternate format, please call 360-705-6705. Teletype (TTY) users may use the Washington Relay Service by calling 711. BLS-700-041 (10/21/19) PAGE 1 OF 4 Tank site information (coat.) Ecology UST ID (if known) This application is for: ❑✓ A change of ownership of an existing site (complete sections I, II & VI) ❑ A new facility with underground storage tanks (complete all sections) ❑ A new tank installation at existing site (complete all sections) 5 Tank site use type (NAICS Code) 6. Number of dispensers at the facility 7a. Number of dispensers at facility with under dispenser containment 7b. Number of dispensers at facility with double walled under dispenser containment 8. If you would like a technical assistance inspection, please check this box 6 1 6 3 4 2 3 5 1 Financial responsibility information See Pages 1 and 2 for the instructions for Proper Codes 1. Financial responsibility limits category 2. Method of compliance with financial responsibility requirement 3. Attach the appropriate proof of financial responsibility as described in the instructions. 4. Retroactive date Site plan (FOR NEW TANKS ONLY) Please ensure the following have been completed: Local authorities have been consulted about local permitting requirements. An as -built site plan of the tank and piping installation has been attached. (Include all information requested in the instructions.) The installation supervisor has signed the last page. The Manufacturer's Installation Checklist has been sent to: n n Department of Ecology Underground Storage Tanks PO Box 47600 Olympia WA 98504-7600 For assistance or to request this document in an alternate format, please call 360-705-6705. Teletype (TTY) users may use the Washington Relay Service by calling 711. BLS-700-041 (10/21/19) PAGE 2 OF 4 UBI number 604 027 650 Individual tank information See pages 2 and 3 of the instructions for proper codes before completing this section. First Tank Second Tank Third Tank Fourth Tank Fifth Tank A Tank name UST-15 UST-16 UST-17 UST-18 UST-19 B Tank installation date - 1942 - 1942. - 1942 - 1942. - 1942 D Tank material A A A A A El Tank construction A A A A A E2 Manifolded tank A PAS A A A F Tank release detection 0 0 IV 0 0 0 H Tank corrosion protection 0 0 i" 0 0 0 1 Spill prevention 0 0,T► 0 0 0 J Overfill protection 0 0 `BOA 0 0 K2 Piping Installation Date - 1942 - 194214 - 1942 - 1942 K1 Piping material A A A -' y,. A A L Piping construction A A A 0,- A A M1 Piping release detection (primary) 0 0 0 ., TT 0 M2 Piping release detection (secondary) J J J J J M3 Turbine sump construction 0 0 0 0 0 01 Piping corrosion protection 0 0 0 0 .a f� 02 Steel flex connector at tank j J J J 4 03 Steel flex connector at dispenser/pump J J J J J P Pumping system 0 0 0 0 0 Compartments 1 2 3 1 2 3 1. 2 3 1 2 3: 1 2 3 Q Substance stored D D D D D R Substance use B B B B B S Compartment capacity 12,000 12,nnn 12,nn11 12,000 11 (VIA For assistance or to request this document in an alternate format, please call 360-705-6705. Teletype (TTY) users may use the Washington Relay Service by calling 711. BLS-700-041 (10/21/19) PAGE 3 OF 4 UBI number 604 027 650 Individual tank information See pages 2 and 3 of the instructions for proper codes before completing this section. 6th Tank 7th Tank 8th Tank 9th Tank 10th Tank A Tank name UST-20 UST-21 UST-22 UST-26 UST-27 B Tank installation date - 1942 -- 1942 - 1942 -1975 -1975 D Tank material A A A A A. El Tank construction A AN. A A A A E2 Manifolded tank A ( A A A F Tank release detection 0 O 0 0 0 0 H Tank corrosion protection 0 0 O O O Spill prevention 0 0 ir,..),4 0 0 0 J Overfill protection 0 0 a 0 0 K2 Piping Installation Date - 1942 - 1942 9' -1975 -1975 K1 Piping material A A A / r A A L Piping construction A A A COA, A A M1 Piping release detection (primary) 0 0 0 d (r/ xi 0 M2 Piping release detection (secondary) J J J J J M3 Turbine sump construction 0 0 0 0 kl4 0 Piping corrosion protection 0 0 0 '1/401 0 Q 02 Steel flex connector at tank J J J J t J 03 Steel flex connector at dispenser/pump J J J J J P Pumping system 0 0 0 0 0 Compartments 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 Q Substance stored D D D 0 0 R Substance use B B B G G S Compartment capacity 12,000 12,000 12,000 13,500 13,500 For assistance or to this document In an alternate format, please call 360 '05-6705. Teletype (T i) users may use the'vvashington Relay Service by calling /11. BLS-700-041 (10/21/19) PAGE 3 OF 4 UBI number 604 027 650 Individual tank information See pages 2 and 3 of the instructions for proper codes before completing this section. 11th Tank 12th Tank 13th Tank 14th Tank 15th Tank A Tank name UST-28 UST-29 UST-30 UST-31 UST-32 B Tank installation date -1975 -1975 -1975 -1975 -1975 D Tank material A A A A A El Tank construction A AN. A A A A E2 Manifolded tank A (.,.!A� A A A F Tank release detection 0 0 0 0 0 H Tank corrosion protection 0 0 0 0 0 Spill prevention 0 0 tiff• 0 0 0 J Overfill protection 0 0 (%(4 0 0 K2 Piping Installation Date -1975 -1975 19; -1975 -1975 K1 Piping material A A A tYsiA A L Piping construction A A A �-es- A A M1 Piping release detection (primary) 0 0 0 e Er4.7 FQ 0 M2 Piping release detection (secondary) J J J J rid J M3 Turbine sump construction 0 0 0 0 0 01 Piping corrosion protection 0 0 0 0 .Q 02 Steel flex connector at tank J J J J 03 Steel flex connector at dispenser/pump J J J J J P Pumping system 0 0 0 0 0 Compartments 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 Q Substance stored 0 0 0 0 0 R Substance use G G G G G S Compartment capacity 13,500 13,500 13,500 13,500 13,500 For assistance or to request this document In an alternate format, please call 360-705-6705, Teletype (TTY) users may use the Washington Relcy Service by calling 711. BLS-700-041 (10/21/19) PAGE 3 OF 4 UBI number 604 027 650 Individual tank information See pages 2 and 3 of the instructions for proper codes before completing this section. 16th Tank 17th Tank 18th Tank 19th Tank 20th Tank A Tank name UST-33 UST-34 UST-35 B Tank installation date -1975 -1975 -1975 D Tank material A A A El Tank construction A As. A A E2 Manifolded tank A C A+ A F Tank release detection 0 0 0 0 H Tank corrosion protection 0 0 , 0 Spill prevention 0 0 0 O J Overfill protection 0 0 P01, K2 Piping Installation Date -1975 -1975 f7 K1 Piping material A A A %,� , L Piping construction A A A 1L., Mi Piping release detection (primary) 0 0 0 .. >T M2 Piping release detection (secondary) J J J 41,..... M3 Turbine sump construction 0 0 0 mom; P., 01 Piping corrosion protection 0 0 0 ,. e 02 Steel flex connector at tank J J J • 03 Steel flex connector at dispenser/pump J J J P Pumping system 0 0 0 Compartments 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 Q Substance stored 0 0 0 R Substance use G G G S Compartment capacity 13,500 13,500 13,500 For assistance or to request this document In an alternate format, please call 360-705-6705. Teletype (TTY) users may use the Washington Retay Service by callina 711. BLS-700-041 (10/21/19) PAGE 3 OF 4 604 027 650 112 Installer certification I hereby certify that the installation of the new underground tank system listed on this form was completed according to all applicable regulations. codes and standards and that a certified service provider was on site during all required installation activities. Flint comae certification number SeMce prowler mane (Nee coda) Telephone number Gay. State, Emai addreirs X Signature of service provtoer Date 0 r operator agreement to terms and conditions of UST compilanco tay Owners and operators of petroleum underground storage tanks (USTs) must: • maintain proof of financial responsibility for taking corrective action and compensating third parties for bodily injury and property damages caused by petroleum releases. • provide release detection for petroleum USTs that can detect a release from any part of the tank and piping. If tanks andfor piping were installed October 1, 2012, or later, they must be interstitially monitored for releases. • operate and maintain corrosion protection systems in accordance with WAC 173-360A-0430 for new or upgraded steel tanks and piping installed after December 22, 1988. • provide spill and overfill protection for new or upgraded tanks installed after December 22, 1988, that are filled with more than 25 gallons at a time. • report, investigate and clean up any spills and overfills in accordance with WAC 173-360A-0740. • use a certified UST supervisor to perform all UST service activities: repairs, tank installation, retrofitting, tank decommissioning, tightness testing, corrosion protection installation and testing and site assessment. notify Ecology of intent to install a new UST system at least 30 days. but not more than 90 days, prior to installation. • permanently close a tank after it has been temporarily dosed or out of service for 12 months and does not meet the performance standards for new UST systems or the upgrading requirements in WAC 173-360A-0320. • notify Ecology at least 30 days before beginning either a permanent closure or a change in service. • have a certified UST supervisor conduct a site assessment at permanent closure or a change -In-service as required under WAC 173-360A-0810 through 0820. • not operate an UST or accept delivery of regulated substances without a valid compliance tag. • notify Ecology within 30 days after bringing any newly installed UST system into use. • ensure mandatory operator training for Class A, B, and C as required under WAC 173-350A-0530. • comply with emergency signage requirement per WAC 173-360A-0550(2). Violations of these conditions may result in compliance tag revocation and/or civil penalty up to $5,000 for each tank involved, for each day of the violation. As the owner and/or operator of the Underground Storage Tank (UST) system described on this application, I certify that I have reed and agree to abide by the foregoing terms and conditions, and that I understand that having an UST compliance tag requires that I corn* with the provisions contained in chapter 90.76 RCW the statute governing USTs, and its implementing regulations, chapter 173-360A WAC. James Robertson Print end Ir 6/10/2020 For assistarirc or to request this document in an alternate format. please call 360:705-6705, Teletype (ITV) users may use the Washington Relay Service by calling 711. Elks-me-041 1147111qt PAGE 4 Or 4 • 30-DAY NOTICE FOR UNDERGROUND STORAGE TANK SYSTEMS UST ID#:t CRL IVEDr. 7 DEPARTMENT OF This form provides Ecology ECOLOGY by Chapter 173-360A State of Washington Please ✓ the appropriate box: ❑ Intent to 30-days' advanced WAC. Instructions Data notice for projects, as required are on the back page. JUN 0 i 70?3 Washington I13:•:‘ter Dr parlrrlent of Ecoic Intent to Close ❑ Change-in-eNjce;r;;..,;;;,rp program Install El I SITE INFORMATION I) OWNER/OPERATOR INFORMATION Tag or UBI # (if applicable): 604 027 650 Owner/Operator Name: Star Forge UST ID # (if applicable): 6163 Business Name: Star Forge Site Name: Former Jorgensen Forge Mailing Address: 8531 E. Marginal Way S. ' Site Address: 8531 E. Marginal Way S. City: Tukwila State: WA Zip: 98108 City: Tukwila, WA ' Phone: Wayne Turk; 206-255-8177 Phone: Wayne TurkL206-255-8177 Email: . wturk@jorgensenforge.com Ill Check the appropriate for Note: individuals performing another qualifying CERTIFIED SERVICE boxes. if more; than tl# f cct this ro p outsboth PROVIDERS) vne service provider sections. MUST be 1CC-certified by the Department is required UST services exam approved or have passed of Ecology. ,ar'k � y�j rs w , •:- ,.°,!,-- ntj �10�"S„ .. installer tkF F t { ,Decommissronet Si Assessor �+ t �� r �J '�4l +grit 1.1 11 � Jr Company Name: Construction Group international Certification Type: UST Decommissioner Service Provider Name: Brad Reilly Cert. No.:. 8289423 Exp. Date: 3/4/2024 Provider Phone: 425-487-2618 Provider Email: markm@cgius.net 0 r }, � Mar�Ct arOelli CGIµPro ect 2) ❑Installer err,. D&amrr Issr ner S1 e<Assessar , _.::. (°.#_ .. }t Company Name: DH Environmental, Inc. Certification Type: WA State Site Assessor Service Provider Name: Nathan Moxley Cert. No.: WA LHG 3024 Exp. Date: 6T(/2024 Provider Phone: 509-332-9281 Provider Email: nathan.moxley@dhenviro.com TANK ID TANK CAPACITY IV TANK AND/OR PIPING INFORMATION DATE PROJECT IS EXPECTED TO BEGIN _ PIPING SUBSTANCE INSTALLATION OR STORED REPLACEMENT ONLY (Y/N) ' COMMENTS 18 USTs identified on pg 3-6 of attached UST Addendum form. Tanks are empty, and work is approved by Ecology Agreed Order No. DE 21034. Expected start date pending permits from City of Tukwila. Start date will be confirmed 3-days before starting as required by WAC 173-360A-0810(1), and we will keep your office apprised of any scheduling updates. 30-DAY NOTICE FOR UNDERGROUND STORAGE TANK SYSTEMS GENERAL INSTRUCTIONS Under WAC 173-360A-0300, 173-360A-0810 and 173-360A-0820, owners and/or operators are required to notify the Department of Ecology (Ecology) at least 30 days prior to beginning underground storage tank (UST') and/or piping installation, decommissioning, or change -in-service projects by hailing this notice to the address below. A separate form must be used for each project type (e.g. install, removal). Once this form is received by Ecology, it is date -stamped and returned to the owner/operator listed on the form. Installation and decommissioning projects cannot begin within the first 30 days after the date stamped on this form unless the wait -period has been waived by a regional Ecology UST inspector. If a project cannot meet the deadlines described below, an additional 30-Day Notice may be required. Department of Ecology Underground Storage Tank Section PO Box 47655 Olympia, WA 98504-7655 SITE AND OWNER/OPERATOR INFORMATION Fill in the site/owner information completely. The contact person listed on this form must confirm the exact date an installation or decommissioning project will begin by contacting the regional UST inspector at least 3 business days before proceeding. INSTALLATION/REPLACEMENT OF TANK AND/OR PIPING Installation projects must begin within 90 days of the date stamped on this notice. Complete the Tank Information section by assigning Tank ID numbers that have not previously been used at the facility. Once processed, this form allows a one-time drop of product for UST system testing purposes only. The fuel drop is not required to occur within the 90-day period. Once your tank(s) store more than one inch of product, leak detection equipment and monitoring must be in place. To receive additional deliveries and operate the new tanks/piping, you must submit the Business License application, UST Addendum, and the tank/piping Manufacturer's Installation Checklists to the Department of Revenue (DOR) within 30 days of completing the installation. This activates the mailing of your Business License with tank endorsement(s) from DOR and the facility compliance tag from Ecology. If only piping is being installed or replaced piping, the ICC-certified installer must certify the installation by completing the Retrofit/Repair Checklist with the Manufacturer's Installation Checklist and submitting it to the owner/operator. The form packet must be submitted by the owner/operator to Ecology within 30 days of completing the piping installation. PERMANENT CLOSURE OF TANK ANDIOR PIPING Decommissioning projects must be completed within 90 days after the date stamped on this returned notice. Complete the Tank Information section using Tank ID numbers listed on the Business License. Use the Comments box to include additional information, such as the date when product was removed from both the piping and the tank to less than one inch. Contact your local fire marshal and planning department prior to tank closure to procure any permits required by county or other local jurisdictions. Compliance with the State Environmental Policy Act (SEPA) Rules, Chapter 197-11 WAC may also apply. A site assessment is required at the time of closure. If contamination is not discovered, a site assessment report must be , submitted to the above address within 30 days. If contamination is discovered or confirmed, it must be reported to the appropriate Ecology regional office within 24 hours and a site characterization report must be submitted to the above address within 90 days. The following are some examples of tanks that are exempt from the UST regulations. • Farm or residential tanks, 1,100 gallons or less, used to store motor fuel for personal or fain use only. The fuel must be used for farm purposes and cannot be for resale. • Tanks used for storing heating oil that is used solely for the purpose of heating the premises. d• Tanks with a capacity of 110 gallons or less. • Emergency overflow tanks, catch basins, or sumps. if you need Ms document in a format for the visually impaired, call Toxics Cleanup Program at (360) 407-7170. Persons with hearing loss can call 711 for Washington Relay Service. Persons with speech disability, call (877) 833-6341. ECY 020-95 (Revised May 2019) LJ I number 604 027 650 individual tank informationSee NagBS a and J uI the IIIJIIui.uuliS for proper codes before (.lAllpiCtlrlg this section. Illlllllll P First Tank Second Tank Third Tank Fourth Tank Fifth Tank A Tank name UST-15 UST-16 UST-17 UST-18 • UST-19 B Tank installation date - 1942 - 1942 - 1942 - 1942 -- 1942 D Tank material A A A A A El Tank construction A -f<444 A A A A E2 Manifolded tank A A A A F Tank release detection 0 0 412C% 0 0 0 H Tank corrosion protection 0 0 0 0 0 1 Spill prevention 0 0 up O O O J Overfill protection 0 0 ®A 0 0 K2 Piping Installation Date -- 1942 - 1942 ... " - 1942 - 1942 KI Piping material A A A �� A A L Piping construction A A A e�,� A A M1 Piping release detection (primary) 0 O OOp E g O M2 Piping release detection (secondary) J J J J Cr'',J 0 _ M3 Turbine sump construction 0 0 0 0 0' .� 0 01 Piping corrosion protection 0 0 0 0E>O 02 Steel flex connector at tank J J J J - u i r 03 Steel flex connector at dispenser/pump J J J J . J P Pumping system 0 - 0 0 0 0 'Cann artments i, c 3 , 1 ... 3' " . 'r 2 : 1 2 1 3 Q Substance stored D D D D D R Substance use B B B B B S Compartment capacity 12,000 12,000 12,000 12,000 12,000 For assistance or to request this document in an alternate format, please call 360.705-6705. Teletype (TTY) users may use the Washington Relay Service by calling 711. BLS-700-041 (1 0/21119) PAGE 3 OF 4 I UF31 number 604 027 650 es 2 and 3 of the instructions for proper codes before completing this section. 6th Tank 7th Tank 8th Tank 9th Tank 10th Tank A Tank name UST-20 UST-21 UST-22 UST-26 UST-27 B Tank installation date . 1942 - 1942 - 1942 -1975 -1975 D Tank material A A A A El Tank construction III' A A A A E2 Manifolded tank Ai A A A F Tank release detection Q 0 rioct, 0 0 0 H Tank corrosion protection b 0 0 0 0 1 Spill prevention O 0 g% O 0 O J Overfill protection O 0 0 0 K2 Piping Installation Date .-1942 - 1942 14d — -1975 -1975 K1 Piping material A A A �� ,, A A L Piping construction Al A A r,4, A A MI Piping release detection (primary) I 0 0 g a» 0 M2 Piping release detection (secondary) 7 J J J ,_ J M3 Turbine sump construction b 0 0 a 0 m._ 0 01 Piping corrosion protection b 0 0 0 %A 02 Steel flex connector at tank if J J tl 03 Steel flex connector at dispenser/pump J J J J P Pumping system b 0 0 0 0 Compartments ,.<;.._ y.` ,. {.,,:.,,,, .'..". 1 2 a 1:: 2 _ 3 :. .. 3 1 2 3 Q Substance stored D D D 0 0 R Substance use B B B G G S Compartment capacity .2,000 12,000 12,000 13,500 13,500 For assistance or to request this document in an alternate format. please call 360-705.6705. Teletype (TM users may use the Washington Relay Service by calling 711. BLS-700-041 (10/21119) PAGE 3 OF 4 Individual tank information I UBI number 604 027 650 ee pages 2 and 3 of the instructions for proper codes before completing this section. 11th Tank 12th Tank 13th Tank 14th Tank 15th Tank A Tank name UST-28 UST-29 UST-30 UST-31 UST-32 B Tank installation date -1975 -1975 -1975 -1975 -1975 D Tank material A A A A A El Tank construction A A A A A E2 Manifolded tank A 0®A4 A A A F Tank release detection 0 0 I7 0 0 0 H Tank corrosion protection 0 0 0 0 0 Spill prevention 0 0 0 0 0 J Overfill protection 0 0 QPR 0 0 K2 Piping Installation Date -1975 -I975 Y9m„ -1975 -1975 K1 Piping material A A A V,,,C� -„ A A L Piping construction A A A elf.e_ A A M1 Piping release detection (primary) 0 0 0 d. ti 2 0 M2 Piping release detection (secondary) J J J J _ J M3 Turbine sump construction 0 0 0 O t414 AIR, O 01 Piping corrosion protection 0 0 0. 0 xi 02 Steel flex connector at tank J . J J J V v. 03 Steel flex connector at dispenser/pump J J J J J P Pumping system 0 0 0 0 0 Compairtments .,,t :�. ` ` .<,s .. " ` `'' ,-;: . ; . 2 3 ` 3 `.. ..... 2 3 :: 1 >; 2 '. 3 .. Q Substance stored 0 0 0 0 0 R Substance use G G G- G G S Compartment capacity 13,500 13,500 13,500 13,500 13,500 For assistance or to request this document in an alternate BLS-7U0-04t (10,21J19) PAGE 3 OF 4 rmat, please call 360-705-6705. Teletype (TTY) users may use the Washington Relay Service by calling 711. !OW number 604 027 650 Indiviidual tank information See pages 2 and 3 of the instructions for proper codes before completing this section. 16th Tank 17th Tank 18th Tank 19th Tank 20th Tank A Tank name U UST-33 UST-34 UST-35 B Tank installation date -1975 -1975 -1975 D Tank material A A A El Tank construction A A A E2 Manifolded tank A ()� • A F Tank release detection 10 0 412c.1 0 H Tank corrosion protection 0 0 0 f Spill prevention 0 0 0/4 0 J Overfill protection 0 • 0 Q A K2 Piping Installation Date -1975 -1975 IiC ^ K1 Piping material A A A kl,Vrict_.. L Piping construction A A A �y „.., M1 Piping release detection (primary) 0 0 off 0 M2 Piping release detection (secondary) J J J c' M3 Turbine sump construction 0 - 0 0 dAsi ,0..‘ Piping corrosion protection 0 0 0 �01 ,, , 02 Steel flex connector at tank J 3 J 03 Steel flex connector at dispenser/pump J J J P Pumping system 0 0 0 Compartments ` ` 1. 3A 2 3 :.. Q Substance stored 0 0 0 R Substance use G G G S Compartment capacity 13,500 13,500 13,500 For assistance or to request this document in an alternate BLS-7o0-041 00/21119) PAGE 3 OF 4 ormat, please caU 360-705-6705. Teletype (TTY) users may use the Washington Relay Service by calling 711. Attachment 3 Email from Ben Billick at Ecology Confirming Determination that the Project is not Required to Obtain Coverage Under the Construction Stormwater General Permit From: Billick, Ben (ECYZ To: Turk. Wayne; awallendahk soundearthinc.com Cc: Homan, Mike; Harvey, Katy (ECYl; Sanchez, Maureen (ECYI Subject: RE: Follow -Up Re: Stormwater Permitting at Jorgensen Forge Date: Wednesday, October 23, 2019 10:20:41 AM Hello Wayne and Annika, Following up on my email below and my conversation with Annika last week about permitting for demolition activities at Jorgensen/Star Forge. Annika, based on our conversation it, is my understanding that prior to any demolition of structures at the site, the pits inside the buildings will be filled and capped and all exposed soils will be paved. As a result, bare soils will not be exposed to precipitation during or after demolition. Operation of the treatment system and sampling under the ISGP will also continue during demolition activities. I provided this information to Ecology's Construction Stormwater General Permit (CSGP) Writer, and she confirmed that you do not need to obtain CSGP coverage for the demolition activities. Please let me know if I misunderstood your demolition plans or if your plans for demolition change, as that could affect the permit coverage determination. Please don't hesitate to contact me it you have any questions. Regards, Ben Billick Senior Water Quality Inspector Department of Ecology, Northwest Regional Office Office: (425) 649-7059 ; Cell: (425) 999-0642 bbil461Pecy.wa.gov City of Tukwila Department of Community Development Allan Ekberg, Mayor Nora Gierloff, Director Revision submittals must be submitted via paper if started as paper at the Permit Center. Revisions must be attached to your permit if started electronically at Construction Permits (aspgov. com). Please notify staff of your submittal by emailing permits@tukwilawa.gov Correction Letter #3: Permit Application Number: D19-0311 STAR FORGE, LLC - 8531 E MARGINAL WAY S Contact Name: Wayne Turk Contact Phone: 206-255-8177 Contact Email: wturk@jorgensenforge.com RECEIVED 1U17 Community Development Summary of Corrections: The SEPA determination was issued on 07/13/2023. The revised SEPA included removal of the 18 underground storage tanks and additional information related to the current demolition plan. The revised documents were released for public comment and the comment period ended on 06/26/2023. A copy of the SEPA determination of non -significance is included in Attachment 1. CORRECTION LTR# 6300 Southcenter Boulevard Suite #100 • Tukwila Washington 98188 • Phone 206-431-3670 • Fax 206-431-3665 City of Tukwila Allan Ekberg, Mayor Department of Community Development - Nora Gierloff, AICP, Director DETERMINATION OF NON -SIGNIFICANCE (DNS) File Number: E19-0008, Star Forge Demolition SEPA Applied: September 25, 2019 Issue Date: July 13, 2023 CORRECTION Applicant: Wayne Turk, Jorgensen Forge Lead Agency: City of Tukwila LTR# RECEIVED JUL 17 30 Community Development Description of Proposal: Address: Parcel Number: Star Forge is closing its manufacturing operations at their 20-acre facility and proposes to demolish 17 existing buildings totaling 323,118 square feet. Existing concrete foundations will remain in place, and concrete -lined equipment vaults will be filled to surface grade and paved with asphalt or covered before building demolition. The project also proposes to remove 18 underground storage tanks (USTs), decontaminate and/or remove concrete and asphalt slabs, and remove limited soil to facilitate paving. 8531 E. Marginal Way S. 0001600023 This notice is to confirm the decision reached by Tukwila's SEPA Official to issue a Determination of Non -significance (DNS) for the above project based on the environmental checklist and the underlying permit application. The City has determined that the proposal does not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 43.21c.030(2) (c). This decision was made after reviewing a completed environmental checklist and other information on file with the lead agency. This information is available to the public on request. Project materials including the application, any staff reports, and other studies related to the permits are available online at https://tukw- egov.aspgov.com/PZ/index.html (click on "Search..." in the upper left corner), or by contacting the project planner, Breyden Jager at (206) 431-3651 or Brevden.Jager@TukwilaWA.gov for further information. This DNS is issued under WAC 197-11-340(2). Comments on this Determination of Nonsignificance must be submitted to 6300 Southcenter Blvd, Suite 100, Tukwila, WA 98188 C/O Breyden Jager, or via email to Brevden.Jager@TukwilaWA.gov by July 27th, 2023. Tukwila City Hall • 6200 Southcenter Boulevard • Tukwila, WA 98188 • 206-433-1800 • Website: TukwilaWA.gov E19-0008 SEPA DNS July 13, 2023 The lead agency will not act on the proposal for 14 days (July 27th, 2023) from the DNS Issuance date. The City previously requested comments on the proposal during a nonformal SEPA consultation process. Comments received during that period have been considered here. The decision is appealable to the Superior Court pursuant to the Judicial Review of Land Use Decisions, Revised Code of Washington (RCW 36.70C). Any appeal shall be linked to a specific governmental action. The State Environmental Policy Act is not intended to create a cause of action unrelated to a specific governmental action. Appeals of environmental determinations shall be commenced within the time period to appeal the governmental action that is subject to environmental review (RCW 43.21C.075). Nora cli,erLo rr 2023 Nora Gierloff, Responsible Official City of Tukwila 6300 Southcenter Blvd. Tukwila, WA 98188 (206) 431-3670 Date Cc: Stacy Fox Nathan Moxley David Hill Wayne Turk James Robertson Ben Billick Maureen Sanchez Drew Imke Holly Borth David Puki Chul and Min Kim WA Office of the Governor US EPA US Army Corp of Engineers National Marine Fisheries Service King County Department of Natural Resources Puget SoundKeeper WA Department of Ecology ' 13, Phone: 206-433-1800 • Email: Mayor@TukwilaWA.gov • Website: TukwilaWA.gov E19-0008 SEPA DNS July 13, 2023 WA Department of Natural Resources WA Dept of Fish & Wildlife WA State Attorney General King County Assessor's Office King County Watershed Coordination WRIA 9 Kind County Dev & Environmental Services Port of Seattle Cascade Water Alliance Seattle City Light Tukwila Public Works Department Tukwila Building Division Puget Sound Regional Fire Authority Muckleshoot Cultural Resources Program Muckleshoot Fisheries Program Muckleshoot Wildlife Program Duwamish River Clean Up Coalition Duwamish Indian Tribe People for Puget Sound Tukwila Historical Society City of Renton City of Burien City of Seattle Phone: 206-433-1800 • Email: Mayor@TukwilaWA.gov • Website: TukwilaWA.gov City of Tukwila REVISION SUBMITTAL Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Phone: 206-431-3670 Web site: http:l/www.TukwilaWAsiov Revision submittals must be submitted in person at the Permit Center. Revisions will not be accepted through the mail, fax, etc. Date: 06/30/2021 Plan ChecWPermit Number: D 19-0311 Response to Incomplete Letter # Response to Comments from Fire Marshall Revision # ! 'after -Permit is Issued Revision requested by a City Building Inspector or Plans Examiner Deferred Submittal # Project Name: Star Forge LLC Project Address: 8531 E. Marginal Way S Contact Person: Wayne Turk RECEIVED CITY OF TUKWILA JUL 01' PERMIT CENTER Phone Number: 206-255-8177 Summary of Revision: Revision is submitted to clarify that the Underground Storage Tanks on the site will be removed and disposed of as part of the project but will be subject to Ecology oversight and requirement to conduct the removal under a Model Toxics Control Act Interim Action. The demolition of the buildign is not subject to the Interim Action requirement. Sheet Number(s): "Cloud" or highlight all areas of revision including date of revision Received. at .the City of Tukwila Permit Center by:. Lk) Entered in TRAKiT on 67 /C W:\Fermit Center\ Templates\Forms\Revision Submittal Form doe Revised: August 2015 City of Tukwila REVISION SUBMITTAL Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Phone: 206-431-3670 Web site: http://www.TukwilaWA.gov Revision submittals must be submitted in person at the Permit Center. Revisions will not be accepted through the mail, fax, etc. Date: 4/5/2021 Plan Check/Permit Number: :D 19-0311 ❑ Response to Incomplete Letter # Response to Correction Letter # 1 & 2 ❑ Revision # after Permit is Issued ❑ Revision requested by a City Building Inspector or Plans Examiner ❑ Deferred Submittal # Project Name: Star Forge LLC Project Address: 8531 E. Marginal Way S Contact Person: Wayne Turk Summary of Revision: •!-s'v i a r t; CITY OF TUKWILA 1 it ; PERMIT CENTER Phone Number: 206-255-8177 See Responses to Correction Letter #1 and #2 Revisions to the Development Permit application, including the Ecology approved Demolition Plan, three revised Utility Capping figures (located in Attachment 4). The figures in Attachment 4 were resized for clarity so the scale adjustment was not highlighted. Public Works Bulletin A2 and the requirements and details for suitable fill material, compacted fill method, and special inspections. 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 W:\Pcrnttl Center\'Pcmplales'J or s'Rcvision Submittal 1'orm.doc Revised: August 2015 City of Tukwila REVISION SUBMITTAL Department of Community Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Phone: 206-431-3670 Web site: http://www.TukwilaWA.gov Revision submittals must be submitted in person at the Permit Center. Revisions will not be accepted through the mail, fax, etc. Date: 10/28/19 Plan Check/Permit Number: D 19-0311 ❑ Response to Incomplete Letter # ® Response to Correction Letter # 1 Revision # after Permit is Issued ❑ Revision requested by a City Building Inspector or Plans Examiner ❑ Deferred Submittal # Project Name: Star Forge LLC Project Address: 8531 E Marginal Way S Contact Person: Wayne Turk Phone Number: 206-255-8177 Summary of Revision: See responses to Correction Letter # 1 comments. RECEIVED CITY OF TUKWILA OCT 282019 °ERMIT CENTER Sheet Number(s): Revisions to the Development Permit application include two new figures not previously submitted (located in Attachments Cl and D1 and labeled as Figure 4 and Figure 5, respectively), and three revised figures (located in Attachment El and labeled as Figure 3A, 3B, and 3C). The figures in Attachment El were resized for clarity so the scale adjustment was not highlighted, but the revision date is highlighted in yellow. "Cloud" or highlight all areas of revision including date of revisio Received at the City of Tukwila Permit Center by: Entered in TRAKiT on t Vim) 8--1 P:\0995 Jorgensen Forge Corporation \0995-002 Jorgensen Forge\Deliverables\0995-002-06 Permitting\Construction Permit Application\Tukwila Comment and Response\Revision Submittal Form_Fdoc Revised: August 2015