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HomeMy WebLinkAboutPermit MI98-0060 - LACY RODGER - FILLINGci9vr MIcti?‘•a CITY O( TUKWILA Permit Center 6300 Southcenter Boulevard, Suite 100 Tukwila, WA 98188 (206) 431 -3670 Miscellaneous Permit Application Application and plans must be complete in order to be accepted for plan review. Applications will not be accepted through the mall or facsimile. Pro ect Name/Tenant: Value of Construction: Will there be storage of flammable /combustible hazardous material in the building? ❑ yes PA no Attach list of materials and storage location on se.arate 8 1/2 X 11 •a•er indicatin..uantities & Material Safet Data Sheets Site Address' 5. / �'-.. S I. ,A- d 2 -5- City State /Zip: Tax Parcel Number: ' 1« 611'a Phone: (20&.,) r7..2,2 -- 6 o /-16 .-.1 7 /' `-i Property Owner: ") R Moo Y F. J__ A e ' f,;) Street Address: G .�� PVC' - City State /Zip: ( 7, L LC UC' 13.. 5t ei /-li IA,' !l Fax it: Address: r Contact Person: c -, A "y✓t C? cl 5 (1 6-1/-e, Phone: City /State /Zip: Street Address: City State /Zip: Fax #: 0 Sewer Contractor: 0 GO k)e.,, / ki 11CA `-e Y- Phone: Street Address: City State /Zip: - (%1Yv) , A` CI bUlf`(`!- Fax #: Architect: �� /0 i Phone: Street Address: City State /Zip: Fax #: Engineer: 11 ff (( IA J" G) U I,. c-17) t-- ' l e l,.) U 0 `!` Clt f ) Phone' (a a) ) 5-`1 l9 - 'q O I Street Address: ..) City tate /Zip: to . j N, ,ZoI Loyu -e. - , :Pctbii.e ,(A/A 61-16) 'J Fax #: MISCELLANEOUS PERMIT REVIEW AND` APPROVAL REQUESTED: (TO BE FILLED OUT:BY'APPLICANT) ":. Des ri.ti•n of work to,be done: 1ld ; ) e,.4a C) _ ._1 de - . Will there be storage of flammable /combustible hazardous material in the building? ❑ yes PA no Attach list of materials and storage location on se.arate 8 1/2 X 11 •a•er indicatin..uantities & Material Safet Data Sheets ■ Above Ground Tanks ■ Antennas /Satellite Dishes ■ Bulkhead /Docks ■ Commercial Reroof ❑ Demolition ❑ Fence ❑ Mechanical ❑ Manufactured Housing - Replacement only ❑ Parking Lots ❑ Retaining Wails ❑ Temporary Pedestrian Protection /Exit Systems ❑ Temporary Facilities ❑ Tree Cutting AP, PLICANTREQUEST ;FOR' MISCELLANEOUS' PUBLIC'WORKS PERMITS`'.'; ❑ Channelization /Striping ❑ Flood Control Zone ❑ Landscape Irrigation ❑ Storrn Drainage ❑ Water Meter /Exempt # ❑ Water Meter /Permanent it ❑ Water Meter Temp # ❑ Miscellaneous ❑ Curb cut /Access /Sidewalk ❑ Fire Loop /Hydrant (main to vault) #: Size(s): _ X Land Altering: 0 Cut cubic yards ,rie Fill jubic yards 0 sq. ft.grading /clearing ❑ Sanitary Side Sewer #: ❑ Sewer Main Extension 0 Private 0 Public ❑ Street Use ❑ Water Main Extension 0 Private 0 Public 0 Deduct 0 Water Only Size(s): Size(s): Size(s): Est. quantity: gal Schedule: ❑ Moving Oversized Load /Hauling MONTHLYSERVICEBILLINGS .TO;." Name: Phone: Address: City /State /Zip: 0 Water 0 Sewer 0 Metro 0 Standby WATER`METER'DEPOSIT /REFUND •BILLING:.. Name: Phone: Address: JCity /State /Zip: 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 extend the time for action by the applicant for a period not exceeding 180 days upon written request by the applicant as defined in Section 107.4 of the Uniform Building Code (current edition). No application shall be extended more than once. Date application accepted: y- .z- 98 Date application expires: /Q 2 - 2 a Application taken by: (initials) MISCPMT.DOC 7/11/96 ALL MISCELLANEOUS PER1i APPLICATIONS MUST BE SUBMI D WITH THE FOLLOWING: ➢ ALL DRAWINGS SHALL B AT A LEGIBLE SCALE AND NEATLY DRAWN BIJI itliG: A'F„ IN IS AND UTILITY PLANS ARE TO BE COMBINED ➢ ARCHITECTURAL DRAWINGS REQUIRE STAMP BY WASHINGTON LICENSED ARCHITECT ➢ STRUCTURAL CALCULATIONS AND DRAWINGS REQUIRE STAMP BY WASHINGTON LICENSED STRUCTURAL ENGINEER ➢ CIVIL/SITE PLAN DRAWINGS REQUIRE STAMP BY WASHINGTON LICENSED CIVIL ENGINEER (P.E.) SUBMIT APPLICATION AND REQUIRED CHECKLISTS FOR PERMIT REVIEW ❑ Above Ground Tanks/Water Tanks= Supported directly -upon grade. exceeding 5,000 gallons and a ratio of height to diameter, or width which exceeds 2:1 ;Submit checklist.:: Antennas /Satellite Dishes Submit checklist';: Awnings /Canopies - No`signage Commercial' Tenant.Improverpent Permit Bulkhead /Dock Submit ,checkiist`: ❑ Commercial.Reroof Subrnit checklist No::`M= Demolition Submit checklist' Fences - Over 6 feet in Height Submit checklist ..N6: Land Altering/Grading/Preloads. Submit checklist'': No:: Loading Docks Mechanical(Residential & Commercial) Miscellaneous Public;Works Permits Commercial Tenant: Improvement >: Permit. Submit: ci "ecklist No - H =:1;7" ` Submit checklist; Residential :oily ' Submit" checklist;: Manufactured Housing (RED INSIGNIA ONLY): Submit checklist:,;: _No: Moving Oversized:Load /Hauling Submit checklist: '-':`N Parking Lots Submit : checklist: : ' No:; ;''M_4: Residential Reroof Exempt with following exception :If :roof structure to be repaired or replaced Retaining Walls - Over 4 feet in height Residential' BUIlding` Permit "Submit,checklist Submit checklist';'; Temporary:Facilities .• Submit checklist ?:':No: Temporary Pedestrian Protection/Exit Systems Submit checklist: rNo: ' M-4,:'. Tree Cutting Submit checklist,: No: Mi =2 ❑ Copy of Washington State Department of Labor and Industries Valid Contractor's License. If not available at the time of application, a copy of this license will be required before the permit is issued, unless the homeowner will be the builder OR submit Form H -4, "Affidavit in Lieu of Contractor Registration ". Building.Owner /Authorized. Agent If the applicant is other than the owner, registered a rcllitect/ engineer;'or,contradtorIicepsed by the State of Washington, a notarized letter from the property owner authorizing the agent' to submit this:permit;appllcatlop and obtain the permit will be required as part of this submittal. 1 HEREBY CERTIFY THAT I 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 I AM AUTHORIZED TO APPLY FOR THIS PERMIT. BUILDING OWNER OR AUTHORIZEAGENTf / = . Signature: ,, ` f �- ) �,rr�ra�1% r ,,' :'1;//'.•���� r�:. _, f / /2 f , F Date: �, f .� f Print name: ,) C. o ,. Fax #: Address: 44 l ,1_ ; 1_i _S'- r" V' > 0 ( )f it ea St� ) l'PJAI l i rl MISCPMT.DOC 7/11/96 ?erntif c!oout PLAN REVIEW /ROUTING ACTIVITY NUMBER: M198 -0060 DATE: 4 -2 -98 PROJECT NAME: RODGER LACY DEPARTMENT: in Divisrlion FiPreienti rks truct I C Planning Division Permit Coordinator DETERMINATION OF COMPLETENESS: (Tues, Thurs) DUE DATE: 4 -7 -98 Complete n Incomplete Not Applicable E Comments: TUES /THURS ROUTING: Please Route ❑ No further Review Required ❑ Routed by Staff ` (if routed by staff, make copy to master file and enter into Sierra) REVIEWERS INITIALS: DATE: APPROVALS OR CORRECTIONS: (ten days) Approved ❑ Approved with Conditions REVIEWER INITIALS: DUE DATE: 4 -21 -98 Not Approved (attach comments) n CORRECTION DETERMINATION: ell' DATE: Approved ❑ Approved with Conditions E DUE DATE: Not Approved (attach comments) [,] REVIEWERS INITIALS: DATE: \PR"ROUTE,DOC 1/98 !roes Kelcie Peterson Tot Brian, Gary -B, City- PO.Jason Dates 9/11/98 10:29am Subjects Rodger Lacy Permit (MI98 -0060) Mr. Lacy's permit for land altering (filling low areas of property) will expire on October. 2, 1998. A correction letter was mailed to him on May 15, 1998. He has yet to respond. Please let me know what the status is of this permit application in your department (any correspondence, stop - works, etc.) I would appreciate a response by the end of next week (9/18/98). Thank you. CCs Jack, Joanna, Ross -E From: Brian Shelton To: Kelcie0TUK- MAIL.6300 -PO, Date: 9/17/98 10 :20am Subject: Rodger Lacy Permit (MI98 -0060) -Reply got your message. working on answer for you. City of Tukwila John W. Rants, Mayor May 15, 1998 Department of Community Development Steve Lancaster, Director Mr. Rodger Lacy 4133 - 46th Avenue South Seattle, Washington 98118 Dear Mr. Lacy: SUBJECT: CORRECTION LETTER #1 Development Permit Application Number MI98 -0060 Lacy, Rodger S 158 St & SR -518 This letter is to inform you of corrections that must be addressed before your application for 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 Public Works Department and the Planning Division At this time the Building Division and the Fire Department have no comments regarding your application for permit. The City requires that two (2) complete sets of revised plans be resubmitted with the appropriate revision block. In order to better expedite your resubmittal a Revision Sheet must accompany every resubmittal. I have enclosed one for your convenience. Corrections /revisions must be made in person and will not be accepted through the mail or by a messenger service. If you have any questions please contact me at the City of Tukwila Permit Center at (206) 431 -3672. Sincerely, . Kelcie J. Peterson Permit Coordinator Enclosures File: MI98 -0068 PUBLIC WORKS DEPARTMENT COMMENTS DATE: May 12, 1998 PROJECT: Lacy Land Altering PERMIT NO: MI98-0060 PLAN REVIEW) R: Contact Joanna Spencer at (206) 433-0179, if you have any questions regarding the following comments. 1. Resolution of issues identified in May 4, 1998 memo from Steve Lancaster, Director of Community Development should be resolved before Public Works department can proceed with the site plan review. TO: FROM: Steve Lancaster L SUBJECT: Land Altering Permit Application #MI98 -0060 DATE: May 4, 1998 TUKWILA DEPARTMENT OF COMMUNITY DEVELOPMENT Kelcie Peterson INTER - OFFICE MEMO The purpose of this memo is to review the referenced Land Altering Permit application with regard to compliance with Chapter 18.45 TMC, Sensitive Areas Overlay (SAO) regulations. A wetland study was submitted with the application, as required by the SAO. The wetland study, prepared by Shapiro & Associates, was reviewed by Gary Schulz (April 9, 1998 memo attached). Mr. Schulz disagreed with the conclusions reached by Shapiro. I determined that an independent review by a third party would be appropriate, and retained the services of Adolfson Associates, Inc. to review the Shapiro study. The results of Adolfson's review is contained in a letter dated April 22, 1998 (copy attached). To summarize, Adolfson concluded that the wetland delineation prepared by Shapiro appears to be inaccurate. The ability to permit grading and filling as requested depends upon the nature and extent of sensitive areas on and adjacent to the site. The issues raised by Mr. Schulz and by Adolfson must be addressed by the applicant's consultant before application #MI98 -0060 can be processed further by this office. I would note that even if the wetland/upland boundary identified by Shapiro were verified as correct, grading and filling the property in the specific manner proposed by the application cannot be approved. The plans submitted do not provide sensitive area buffers as required by TMC 18.45.040. This could include an appropriate buffer from the watercourse along the southern boundary of the site. While I understand that the property owner hopes to pipe this watercourse, I believe that a Hydraulic Project Approval (HPA) from the State would be required to accomplish this. If the owner is unable to obtain such a permit and must leave the watercourse open, it will be subject to the appropriate buffer requirements of the SOA. I would urge the applicant to contact the State Department of Fisheries (425.391.4365) to investigate the need for an HPA prior to finalizing his plans. Finally, it appears that the subject site, and possibly some adjacent property, has been improperly cleared and graded without a land altering permit. By copy of this memo to the City Engineer, I am recommending that appropriate enforcement action be taken. cc: Brian Shelton, City Engineer Gary Barnett, Development Engineer Gary Schulz, Urban Environmentalist Rhonda Berry, Assistant City Administrator 22 April 1998 Jack P. Pace, Planning Manager Department of Community Development City of Tukwila 6300 Southcenter Boulevard Tukwila, Washington 98188 RE: Rodger Lacy, Sr. Property Wetland Study Dear Mr. Pace: FILE COPY 46411im ADOLFSON ASSOCIATES, INC. RECEIVED APR 2 4 1998 COMMUNITY DEVELOPMENT Adolfson Associates, Inc. (AAI) is pleased to present the following summary of my study of wetland conditions on the Rodger Lacy, Sr. Property in Tukwila. The subject property is located near Crystal Springs Park in Section 32, Township 23 North, Range 4 East (W.M.). The site is triangularly shaped, covering about 4,000 square feet. It is bounded to the south and west by additional property owned by Mr. Lacy, and to the north/northeast by right -of -way for State Route 518. My study consisted of a review of several pertinent documents, and a site visit conducted on Monday, 20 April 1998. Documents that I reviewed include: • A letter to Mr. Lacy, dated 27 March 1998, prepared by Shapiro & Associates, that describes the results of wetland delineations they conducted on the site (from data sheets appended to the letter, it appears that their field work was conducted on 24 March 1998); • A proposed grading plan sheet, dated 30 March 1998, prepared by The Galli Group; • A letter to the Tukwila Public Works Department, dated 31 March 1998, prepared by The Galli Group, that describes the proposed grading plan noted above; • A boundary and contour survey of the site, dated 28 February 1995 and revised on 1 March 1998, prepared by Lund & Associates; • A City of Tukwila Miscellaneous Permit Application for filling "low areas" of the subject property, dated 2 April 1998 (Permit No. MI98- 0060); • City of Tukwila Water Resource Rating and Buffer Recommendations (Jones & Stokes, 1990); and • City of Tukwila Watercourse Rating Data Sheets (Jones & Stokes, 1990). Based on the contour survey and as observed in the field, the site slopes down towards the northeast; The Galli Group letter states that the slope gradient is about 10 percent, and the contour survey indicates that elevations range from about 228 feet to about 250 feet. Note that the majority of the property, as well as nearly the entirety of the adjacent Lacy Property to the south, had been recently disturbed, From the dominance of grasses, and from the cemented nature of the soils, it appears that clearing and grading activities have occurred. tvifiBb�bO A channelized stream is located along the southern boundary of the property. The stream was flowing on the day of my site visit, although substantial rain had not occurred in the preceding week, and temperatures during that time approached 70 °F. The stream emerges from a forested wetland to the west of the site; presumably, stream flow noted on 20 April 1998 was due primarily to groundwater discharge. I used the definitions, criteria, and procedures of the 1997 Washington Stale Wetlands Identification and Delineation Manual to determine that much of the northern and western portions of the property boundary are wetlands. The wetland is an extension of the forested wetland to the west, and on the subject property, is located both along sloping portions of the western property boundary as well as in a depression that covers approximately 700 square feet. I could not determine how the depression was formed. However, at least the northernmost portion of the depression does not appear to have been recently created through site grading activities, as a fence along the State Route 518 right -of -way showed no signs of having been previously buried (the bottom of the fence is at the same elevation as the northern part of the depression) and a fallen red alder in the depression had also obviously been growing at that elevation for years. Soils throughout both the sloping portions of the wetland and within the depression were saturated during my field visit (again, substantial rain had not occurred for more than a week prior to my visit), and were clearly "hydric" soils, that is, indicative of long term anoxic /reducing conditions. Areas of standing water ranging up to seven inches in depth were found within the depression. From the saturated and /or inundated soils, it appears certain that wetland hydrologic conditions exist in these locations. As noted above, vegetation throughout the site has been altered, so plants would not be expected to be a good indicator of wetland conditions at this point. However, despite the recent site disturbance and the presence of seeded grasses, numerous common wetland plants - including skunk cabbage, an obligate wetland species - were noted within the wetland, Note I did not conduct a formal wetland delineation, and therefore, can only estimate the extent of the wetland. It would be particularly challenging to determine the wetland boundary on the south side of the depression, as the soils are disturbed (thus having become somewhat cemented). Further, the stream is located above the depression to the south - it would be important to determine if the stream "leaks" shallow groundwater that may create wetland conditions, thus connecting the stream to the depression. Based on my observations, the Shapiro & Associates wetland delineation appears inaccurate. While a professional survey of their delineation flagging was not included in their letter report (a hand sketch showing approximate locations was provided), I was able to located all four of their flags. The wetland clearly extends both south of Flag No. A2 (the southernmost on -site flag) and clearly extends east of Flag No, Al (the easternmost on -site flag). All four flags are located on the slope above the depression. I found saturated, hydric soils outside of the delineated wetland (that is, within areas identified as uplands in the Shapiro letter) as well as hydrophytic plants, including skunk cabbage. Further, the depression was identified as upland in the Shapiro letter. This is confusing, as their letter states that "surface water" was present at the time of their visit (on 24 March 1998, which is well into the growing season) and that the soil color was very dark gray (10 YR 3/1 on a Munsell Soil Color Chart). Dark soil colors, especially when standing water is present weeks into the growing season, are usually a strong indicator of wetland conditions. The text of the letter states that the depression is not a wetland due to the "depression microtopography," the "dominant upland" vegetation, and the upland soils surrounding the depression. However, microtopographic depressions are obvious locations in which wetlands might form, and would not be evidence that uplands occur there. Further, the appended vegetation data sheet (for Sample Plot 4, identified in the text and hand sketch as being within the depression) states that 75 percent of the dominant vegetation has a wetland indicator status of obligate wetland (OBL), facultative wetland (FACW), or facultative (FAC): this is wetland dominated vegetation, not upland dominated vegetation. Indeed, at the bottom of this data sheet Shapiro staff clearly state that hydrophytic (that is, wetland) vegetation is present. On the soils and hydrology data sheet for Sample Plot 4 (also appended to the letter), Shapiro staff state that all three mandatory criteria for wetland identification have been met. Curiously, they also indicate on that data sheet that there had been no significant disturbance to soils, hydrology, or vegetation, but also indicate on the data sheet that the vegetation had been recently removed. Lastly, the upland nature of the soils surrounding the depression would have little or no bearing on a wetland determination within the depression itself. Based on my observations, and assuming that the on -site wetland is an extension of the forested wetland to the west, then this wetland would likely be rated a Type 2 wetland according to the Tukwila Zoning Code. The City's Zoning Code requires 50 -foot buffers for Type 2 wetlands. I did not determine the rating of the stream along the southern property boundary; however, it is likely that this stream would be either a Type 2 or Type 3 watercourse. Type 2 watercourses require 35 -foot buffers and Type 3 watercourses require 15 -foot buffers. Given the location and rating of the wetland and stream, and their respective buffer requirements, it appears that that much, perhaps a majority, of the site is either a sensitive area or buffer. To accurately make this determination, further wetland delineation work - including a professional survey of wetland flagging - would be necessary. I very much appreciate the opportunity to conduct this study, and to provide these. comments. If you have any questions, please call me at (206) 789 - 9658. Thank you.' Sincerely, Andrew T. Chstelle, PWS, CPSS Director of Natural Sciences MEMORANDUM TO: Steve Lancaster, DCD Director FROM: Gary Schulz, Urban Environmentalist DATE: April 16, 1998 RE: Environmental Review for Land Altering Permit #MI98 -0060. FILE "OPY This memo is written to address any environmental impacts associated with the proposed fill activity on a parcel located north of the current Lacy building permit project, Tract 48. Shapiro & Associates, Inc. have investigated the site and reported their findings to Mr. Lacy in a letter report dated 3/27/98. My review requires a site visit to verify the report findings. The results of my review are as follows: Project site existing conditions The triangular piece of property is about 4,000 square feet in size and borders the Lacy property to the south and WSDOT's ROW to the northeast. A watercourse flows across the south edge of this site and enters a WSDOT drainage swale. Most of this parcel has been recently cleared to bare ground. There is evidence of native tree and shrub cover that was removed throughout the area of disturbed ground. Clearing has extended west onto Tax Lot 402. This area has also been very recently seeded with domestic grasses. The site slopes from west to east and north. The east portion of the site adjacent to WSDOT fencing is a low depression area extending across the subject property. Standing water and slow drainage to the north were observed in this depression. The estimated size of the depression is 600 square feet and is considered to be wetland area. If extended off -site either north or west, the wetland would be rated a Type 2 due to a forested component. Unauthorized clearing of wetland and wetland buffer areas has occurred on the parcel proposed for filling and also on the adjacent Tax Lot 402 to the west. Wetland assessment findings The wetland study by Shapiro & Associates determined that most of the subject parcel is upland. I have evaluated the site related to the findings of the wetland study and have the following comments. 1) The report does not refer to the City's wetland or watercourse inventories, conducted in 1990. The area of the subject property includes inventoried wetland #19 and inventoried watercourses 22 -7 and 22 -8. Watercourse 22 -8 is mostly contained within the adjacent WSDOT right -of -way. The referenced "stormwater ditch" on the site is a regulated watercourse supported by groundwater. 2) The SCS King County Area soil mapping, cited in the Shapiro report appears to be near the border of the property but located off -site to the east. Regardless of actual location the mapped soils do not correlate with report findings. 1 .I Lacy, #MI98 -0060 Memo April 16, 1998 Page 2 3) Because the area has been recently cleared, the wetland assessment could be subject to the Atypical Situations (Disturbed Area) methodology. The report and data forms refer to the site being cleared of blackberry (upland related), and therefore, the majority of data points were not included for the hydrophytic vegetation criteria. There was nor correlation to adjacent undisturbed vegetation or other observations. My observations of the disturbed ground includes remnant sahnonberry shrubs and red alder trees which are considered hydrophytic vegetation. Reliance on soil conditions is acceptable, however, the entire area does not appear to have been covered by blackberry. The on -site depression area is approximately 40 feet long and about 600 square feet in size. The area has standing water, hydric soils, and a drainage pattem that extends off -site to the north. Data Plot #4 confirms all three wetland criteria are met; however, the area was not determined as wetland. Groundwater is entering this depression from the adjacent disturbed slope to the west. In addition, skunk cabbage, an obligate wetland species, is growing on the slope area that appears to be outside the flagged wetland boundary. 4. Although mentioned in the conclusion, the report does not identify the Sensitive Area Ordinance classification and standard buffer. Wetland A is a forested wetland that likely exceeds 1.0 acre and will be rated a Type 2. Type 2 wetlands have a standard 50 -foot buffer and are protected from most uses. In conclusion, I do not agree with the wetland determination conducted by Shapiro & Associates. If this proposal is continued the approved wetland delineation will need to professionally land surveyed and impacts identified. This project is not part of the Lacy Reasonable Use Permit and appears to be outside of the administrative approval process. cc: Gary Barnett, Project Development Engineer Jack Pace, Planning Manager GG THE GALLI GROUP Geocechnical Consulting March March 31, 1998 Project 98- 1041 -05 City of Tukwila Public Works 6300 Southcenter Blvd. Tukwila, WA 98188 Attention: Grading Permit Center Subject: Rodger Lacy Sr. Property Proposed Grading Plan A Portion of Sunnydale Gardens The Galli Group has prepared a proposed grading plan for the triangular piece of property north of Tract 48 and east of Tax Lot 402 in Sunnydale Gardens (see attached survey). The parcel is adjacent to property owned by Mr. Lacy which is currently planned for improvements under an approved building permit. The site is triangular in shape, and contains approximately 0.1 acres. It slopes toward the NE at a grade of about 10 percent. The proposed grading plans for receiving embankment fill from excavation activities on Tract 48. The embankment should be constructed of material compacted in nor greater than 10 -inch lifts to a minimum compaction of 88 percent modified proctor density. Maximum side slopes of the embankment should be limited to 3H:1 V to minimize sloughing of material.. The fill will approach 6 feet at it's maximum thickness, but the majority of the fill will be less than 3 to 4 feet thick and feather out to match existing grade at the property limits. We estimate the total fill amount to be on the order of 360 cubic yards. Fill placement will not adversely affect the stability of the site. A silt fence should be constructed prior to placing fill material, and should be maintained until permanent vegetation is established. Impact to existing FiECEIVED APR 2 - 1998 TUKWILA PUBLIC WC1Ptec..., -. Proposed Grading Plan Project 98- 1041 -05 Page 2 drainage patterns will be minimal. Sheet flow from the west will tend to collect against the fill and drain toward the north, but will still discharge overland to the existing WSDOT Swale.' Please contact us if you have any questions or something needs additional clarification. Sincerely, THE GALLI GROUP Paul L. Stoltenberg P.E. Project Engineer Attached: Boundary and Contour Survey Proposed Grading Plan (Enlarged Area) March 27, 1998 Nil IOW SHAPIRO & ASSOCIATES. INC. Mr. Rodger Lacy 4133 46th S. Seattle, Washington 98118 ' Re: Tukwila Wetlands Study Dear Mr. Lacy: At your request, Shapiro and Associates, Inc. (SHAPIRO) visited your property in the City of Tukwila, King County, Washington on September 25, 1997 in order to identify and delineate wetland boundaries. The site (Figure 1) is bounded by Crystal Springs Park on the south, SR518 to the north and 51st Avenue S. to the east (Township 23N, Range 4E, Section 22). Methods. Wetlands on the site were identified and their boundaries established using methods described in the, U.S. Army Corps of Engineers Wetlands Delineation Manual (Environmental Laboratory, 1987), commonly. referred to as the 1987 Manual. Wetland boundaries were marked with bright orange flagging labeled "WETLAND BOUNDARY" with red flagging. - Wetland flagging was numbered in sequential order. Sample plots were established at the site. Soil was characterized by digging a hole to a depth of at least 18 inches below the ground surface. Soil layers, or horizons, were described with regard to the soil texture, color, presence or absence of redoximorphic features (such as mottling or gley color formation), and organic matter content. All herbaceous plant species within a 5- foot radius of the soil pit were identified, and the percent of the ground each covered was estimated. All shrubs, saplings, and trees within a 30 -foot radius of the soil pit also were identified and their cover estimated. Data collected at each of these - sample plots were recorded. Data forms are attached. Results A review of existing literature, including the National Wetland Inventory, Des Moines, 4 rV. Washington uadran le U.S. Fish and Wildlife Service, 1987), and the King County • 1� WA 9B104 Wetlands Inventory (King County Environmental Division, 1990), indicates that the site e was not identified as a wetland at the time of those surveys. The King County Wetlands Inventory does not map wetlands less than 1 acre in size. The Soil Survey of King County Area, Washington (United States Department of .24 9190 .Agriculture: Soil Conservation Service, 1973) has mapped the site as containing the Arents, Alderwood soil series. This soil series is characterized as being so disturbed by urbanization that it can no longer be classified with the Alderwood series. The Arents, Alderwood series has not been classified as hydric according to Hydric Soils of the United States (United States Department of Agriculture: Soil Conservation Service, 1985). RECEIVED APR 2 - 1998 ogshap:com k1 •ooro TuKWILA PUBLIC WORKS Mr. Rodger Lacy Page 2 March 27, 1998 The investigated area is an approximately 4000- square -foot parcel in the northern section of the property (Figure 2). The triangular shaped parcel slopes downhill from southwest to northeast. A stormwater ditch traverses the property from west to east. The' ditch is the southern boundary of the investigated area. The northern boundary is the chain link fence that designates the right of way property line of SR518. The western boundary is forested with upland and wetland habitat. The vegetation on the investigated area includes recently planted grasses, bare ground, and clumps of blackberry bushes. There is evidence that a road previously existed along the north side of the ditch. A wetland was identified in the western area of the parcel approximately 40 feet east of the forested area of the property. This wetland boundary was designated Wetland A and flagged from Al to A4 in a north south line from the chain link fence to the ditch. This wetland would be classified as a palustrine emergent /scrub shrub wetland. The Wetland A boundary is approximately 80 feet long. The wetland was investigated for approximately 50 feet west of the wetland boundary. The area east of Wetland A was identified as upland. Eight sample plots were established at the site (see Figure 1). Sample Plots 1, 2, and 3 were characterized with vegetation dominated by what appears to be a recently planted commercial grass seed mixture including bluegrass (Poo sp.), bentgrass (Agrostis sp.),.and fescue (Festuca sp.). Vegetation also includes common horsetail (Equisetum arvense), Himalayan blackberry (Rubus discolor), and trailing blackberry (R. cusinus). The trees in Sample Plot 2 are on the north'side of the chain link fence and include big -leaf maple (Acer ncacrophyllurn) and red alder (Alms rubra). The soils at Sample Plots 1 and 3 are dark brown to brown (10YR 4/3 and 10YR 3/3) loams and sandy loams. The mottles are olive brown (2.5Y 4/3), few, and medium.. The soils at Sample Plot 2 are very dark grayish brown to yellowish brown (10YR 3/2 and 10YR 5/4) sandy loams. The mottles are olive brown (2.5Y 4/4), few, and fine. The soils had no hydrological indicators. None of the wetland parameters are met at Sample Plots 1., 2, and 3. Sample Plot 7 has soils and hydrological characteristics consistent with Sample Plots 1 and 3. Vegetation is the only wetland parameter met at Sample Plot 7. Sample Plot 4 is in a depression approximately 20 square feet in area. The dominant vegetation is Himalayan blackberry. The ground is mostly bare with traoe amounts of common horsetail. The soils are very dark gray to very dark brown (10YR 3/1 and 10YR 2/2) sandy loams with no mottles. There was surface, water at the time of the investigation. This area is not identified as a wetland due to the depression microtopography, the dominant upland vegetation, and the consistent upland soils surrounding the depression. Sample Plots 5, 6, and 8 characterize the wetland area of the parcel. Vegetation includes the grass seed variety, common horsetail, salmonberry (Rubus spectabilis), and large patches of bare ground. Soils are dark gray to very dark gray (10YR 3/1 and 10YR 2/2) loam and sandy loams. Mottles in Sample Plot 8 are yellowish brown (2.5Y 5/4), few, and medium. All three sample plots have saturated soils, and Sample Plots 6 and 8 had free standing water at 12 and 10 inches respectively. The vegetation, soil, and hydrology at Sample Plots 5, 6, and 8 are hydric according to wetland classification criteria. RECEIVE APR 2 --.1998 TUKWILA PUBLIC WORKS Mr. Rodger Lacy Page 3 March 27, 1998 Conclusions SHAPIRO delineated the eastern boundary of the wetland on Mr. Lacy's property on March 24, 1998. The wetland appears to meet the minimum criteria to be considered a jurisdictional wetland by the U.S. Army Corps of Engineers: the presence of wetland plants, hydric soil, and hydrology at or near the ground surface. Any development activities that may affect this wetland may require authorization from the U.S. Army Corps of Engineers. In addition to applicable federal regulations, the City of Tukwila has regulations that pertain to the altering of wetlands. . The wetland boundary, classification and recommended buffers described herein are Shapiro's best professional opinion based on the circumstances and site conditions at the time of our study. Final determinations of wetland boundaries, classifications, and the required buffers and setbacks are made by local, state, and federal jurisdictions. Thank you for the opportunity to, prepare this material for you. If you require additional assistance on this or any other project, please do not hesitate to call me or Mark Pedersen. Sincerely; SHAPIRO AND ASSOCIATES, IN Calvin Kelly Douglas Ecologist c^ F 6 NE Ag a N`f=1 0 (BASIS Cr DEARI i -PLAT) N 0YA'20t 65412 N U'0650t CI- sr ' ~i i �- /, 1 153459 1 1 I 1 I / // .',/ / / / I I I III lit/ / / / ,`I• ;,f __�� /,/ / 1 1 1 I 1 /// / i/ / / - ----...-/ .J ::( II }' i �1i / //. / // /� /I1/S(�1.,1 // /` // /"(111 ^1 - -// ,/ I\_ ---- .,1 �' �_IIP..' -r %%/ // / 9Z " // r / 1 ter' 7 , _,....4,/ _/r" - , / ///1- / 0r '/-- / / // 0,----A, - - -Ai 1_" /.. ;/V'__— //_ l 1r /', ). //O, -- .=-00_!/ u^ 11 i/ J�I't1' /J // tp' // //3// /./...././„...238.0 .. .` // f ,I e } -1 -4-I .1. J N 0'09'20E 674]3 S 0'06'5011 49376 RECEIVEr APR 2 -- 1998 PUBLIC O KS N ,5- Ct06AK1Y C 4 3 r, 301 x 1 !IIUI9i31 7'931 SNI:JOAA 0111311ct .=11.r7 86R - .1c1V (•.) tnim>ini 6 0 tel .40,0 i fl 0 4 a CISIA13331A 7 0 , tti ___r fa, n A in ..-1 4 -0.- 4) k eih ✓ 43 --C- E4 / •.3 3 ())" (:‘ / ..01,... < 0 / ce 0 it tt 1 / •-• N 0 •1 • 9dp i—ezz®? 0 it 0 /1 1E96 MS2.90 0 S 0 c 1, D ttz• ivk .......-- k. „, / ,46,4112k 3 / CU .0..00. 43e / cr so I • WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD VEGETATION UNIT SAMPLING PROCEDURE Project /Site: 1981020p Sample Plot #: 1 Field Investigator(s): CKD Date: 3/24/98 Sp Code.. Herbs & Bryophytes SHAPIRO & ASSGEIATES2 Indicator %Areal Cover Status " Cover Class Midpoint Rank agsp Agrostis sp. FACW -FACU 30 4 38.0 fesp Festuca sp. FACW -UPL " 30 4 38.0 posp Poa sp. FACW -UPL " 30 4 38.0 eqar Equisetum arvense FAC 5 1 3.0 amanlo 0' VW/2W Sp Code Shrubs rudi Rubus discolor ruur Rubus ursinus Sum of Midpoints: Dominance Threshold: Indicator Status ** FACU FACU %Areal Cover 15 117.0 58.5 Cover Class Midpoint Rank 2 10.5 1 10 2 10.5 1 Sum of Midpoints: Dominance Threshold: 21.0 10.5 Sp Code Saplings Indicator Status** % Areal Cover Cover Class Midpoint Rank Sum of Midpoints: Dominance Threshold: Sp Code Trees Indicator Status " %Areal Cover Cover Class Midpoint Rank Sum of Midpoints: Dominance Threshold: RECEIVED APR 2 - 1998 TUKWILA PUBLIC WORKS ;JO 'Atrir,.jf;6a•iti. its: 4 Ur..?. itf:'-. i• s..#, Ywyo1:..:': i.$ n' a>: i. T9+ t. 9viaSl: •.aN ^.�w:ahl;^?:.irJ.'.v.:wrv; ✓. % of Dominants that are OBL, FACW, and /or FAC: undetermined Hydrophytic Vegetation? Comments: it appears the site has recently been cleared of blackberry vegetation and grass mixture has been planted in recent weeks, identification of new grass insufficient to make hydrophytic vegetation call, To determine dominants, first rank species by midpoints. Then sum midpoints In order •" Species that do not appear on the National List (Reed, 1988) may have been assigned an Indicator until 50% of total for all species (dominance threshold) Is Immediately exceeded. All status based on field observations and habitat information from the literature. species contributing to this cumulative total plus any others having 20% of the total midpoint value are marked with an asterisk. WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD VEGETATION UNIT SAMPLING PROCEDURE Project /Site: 1981020p Sample Plot #: 2 Field Investigator(s): CKD Date: 3/24/98 Sp Code_ Herbs & Bryophytes SHAPIRO & ASSC(EIATES2 Indicator % Areal Cover Status** Cover Class Midpoint Rank agsp Agrostis sp. FACW -FACU 30 4 38.0 fesp Festuca sp. FACW -UPL " 20 3 20.5 posp Poa sp: FACW -UPL " 20 3 20.5 Sum of Midpoints: Dominance Threshold: 79.0 39.5 Sp Code Shrubs rudi Rubus discolor pomu Polystichum munitum ruur Rubus ursinus Sp Code Saplings Indicator Status" FACU FACU FACU %Areal Cover. 60 Cover Class Midpoint Rank 5 63.0 1 2 1 3.0 10 2 10.5 Sum of Midpoints: 76.5 Dominance Threshold: 38.3 Indicator Status** 411=11211=11111211111191611111, densmsemoscommi % Areal Cover Cover Class Midpoint Rank Sp Code Trees acma Acer macrophyllum alru Alnus rubra RECEIVED TUKWiLA PUBLIC WOHKS Sum of Midpoints: Dominance Threshold: Indicator Status** FACU FAC % Areal Cover Cover Class Midpoint Rank 10 2 10 2 Sum of Midpoints: Dominance Threshold: qi' ;. •i'1 10.5 1 10.5 1 21.0 • 10.5 % of Dominants that are OBL, FACW, and /or FAC: undetermined Hydrophytic Vegetation? Comments: it appears the site has recently been cleared of blackberry vegetation and grass mixture has been planted in recent weeks, identification of new grass insufficient to make hydrophytic vegetation call, bare ground 20% To determine dominants, first rank species by midpoints. Then sum midpoints in order until 50% of total for all species (dominance Threshold) is Immediately exceeded. All species contributing to This cumulative total plus any others having 20% of the total midpoint value are marked with an asterisk. " Species that do not appear on the National Usl (Recd, 1088) may have been assigned an Indicator status based on field observations and habitat information from the literature. WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD VEGETATION UNIT SAMPLING PROCEDURE Project /Site: 1981020p Field Investigator(s): CKD Sp Code,_ Herbs & Bryophytes Sample Plot #: 3 Date: 3/24/98 SHAPIRO & ASSc. 1ATES2 Indicator % Areal Cover Status ** Cover Class Midpoint Rank agsp Agrostis sp. ' FACW -FACU 30 4 38.0 fesp Festuca sp. FACW -UPL ** 30 4 38.0 posp. Poa sp. FACW -UPL "* 30 4 38.0 eqar Equisetum arvense FAC 5 1 3.0 cear cerastium arvense FACU 5 1 3.0 Sp Code Shrubs rudi Rubus discolor Sp Code Saplings Sum of Midpoints: Dominance Threshold: Indicator Status** FACU %Areal Cover 120.0 60.0 Cover Class Midpoint Rank 20 3 20.5 1 Sum of Midpoints: Dominance Threshold: 20.5 10.3 Indicator Status ** % Areal Cover Cover Class Midpoint Rank Sum of Midpoints: Dominance Threshold: Sp Code Trees Indicator Status`* % Areal Cover . Cover Class Midpoint Rank Sum of Midpoints: Dominance Threshold: RECEIVED APR 2 - 1998 TU KIM LA PUBLIC WORKS •4%..7 r .,:G..,pj1. .j v.,e •.. % of Dominants that are OBL, FACW, and /or FAC: undetermined Hydrophytic Vegetation? Comments: it appears the site has recently been cleared of blackberry vegetation and grass mixture has been planted in recent weeks, identification of new grass insufficient to make hydrophytic vegetation call To determine dominants, first rank species by midpoints, Then sum midpoints In order " Species that do not appear on the National Ust (Reed, 1988) may have been assigned an indicator until 50% of total for all species (dominance threshold) Is Immediately exceeded. AU status based on field observallona and habitat Information from the literature. species contributing to this cumulative total plus any others having 20% of the total midpoint value are marked with an asterisk. WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD VEGETATION UNIT SAMPLING PROCEDURE Project /Site: 1981020p Field Investigator(s): CKD Sp Code,. Herbs & Bryophytes Indicator Status ** Sample Plot #: 4 Date: 3/24/98 eqar Equisetum arvense FAC Sp Code Shrubs rudi Rubus discolor rusp Rubus spectabilis %Areal Cover 5 Cover Class 1 SHAPIRO& ASSalATFS2 Midpoint Rank 3.0 1. Sum of Midpoints: 3.0 Dominance Threshold: 1,5 Indicator Status" FACU FAC+ %Areal Cover Cover Class Midpoint Rank 30 4 38.0 1 15 2 10.5 2 Sum of Midpoints: Dominance Threshold: 48.5 24.3 Sp Code Saplings Indicator Status" %Areal Cover Cover Class Midpoint Rank WNW Sp Code Trees alru Alnus rubra Sum of Midpoints: Dominance Threshold: RECEIVED APR 2 - 1998 TUKWILA Indicator Status** FAC %Areal Cover 10 Sum of Midpoints: Dominance Threshold: Cover Class 2 p.4'. •r y, .uL,, i•.• -, 4.r 4i +.h4'v Midpoint Rank 10.5 1 % of Dominants that are OBL, FACW, and /or FAC: Hydrophytic Vegetation? Comments: it appears site recently cleared of blackberry toe of slopes To determine dominants, first rank species by midpoints, Then sum midpoints In order until 50% oI total for all species (dominance threshold) Is immediate exceeded. All species contributing to this cumulative total plus any others having 20% of the total midpoint value are marked with an asterisk. 10.5 5.3 75% yes vegetation, 95% bare ground or open water, a depression at the " Species that do not appear on the National List (Reed, 1988) may have been assigned an indicator status based on field observations and habitat information from the literature. WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD VEGETATION UNIT SAMPLING PROCEDURE Project /Site: 1981020p Sample Plot #: 5 Field Investigator(s): CKD Sp Code Herbs & Bryophytes Date: 3/24/98 SHAPIRO& ASSC(EIATES2 :M'n Indicator % Areal Cover Status" Cover Class Midpoint _. Rank agsp Agrostis sp. FACW -FACU 20 3 20.5 fesp Festuca sp. FACW -UPL ** 20 3 20.5 posp Poa sp. FACW -UPL ** 20 3 20.5 eqar Equisetum arvense FAC 12 2 10.5 2 Iyam Lysichitum americanum OBL 6 2 10.5 2 tisomosessasissuosaszemiar Sum of Midpoints: Dominance Threshold: Indicator Sp Code Shrubs Status ** rusp Rubus spectabilis FAC+ Sp Code Saplings %Areal Cover 20 Sum of Midpoints: Dominance Threshold: Indicator Status ** %Areal Cover 82.5 41.3 Cover Class Midpoint Rank 3 20.5 1 20.5 10.3 Cover Class Mid . oint Rank Sp Code Trees alru Alnus rubra Sum of Midpoints: • Dominance Threshold: Indicator Status ** %Areal Cover Cover Class Midpoint Rank RECEIVED APR 2 -- 1998 FAC 10 2 10.5 1 Sum of Midpoints: Dominance Threshold: 10.5 5.3 'VA 4lk'.I6 r1:. x•.t,.t,w': =.rn.r. r. :.�.'cr .'rl�:.:w^.'�r•rc.,:;r _,.:s i:'.a ,.a w,ce4,:. �.tf�tf.�:.s..fi l,xb .::•�:. TUKWiLA PUBLIC WORKS % of Dominants that are OBL, FACW, and /or FAC: undetermined Hydrophytic Vegetation? Comments: it appears the site has recently been cleared of blackberry vegetation and grass mixture has been planted in recent weeks, identification of new grass insufficient to make hydrophytic vegetation call, 20% bare ground To determine dominants, first rank species by midpoints. lhen sum midpoints In order ** Species that do not appear on the National Ust (Reed, 1988) may have been assigned an indicator until 50% of total for all species (dominance threshold) Is immediate exceeded. All . status based on field observations and habitat Information from the literature. species contributing to this cumulative total plus any others having 20% of the total midpoint value are marked with an asterisk. WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD VEGETATION UNIT SAMPLING PROCEDURE Project /Site: 1981020p Field Investigator(s): CKD Sp Code_., Herbs & Bryophytes Sp Code Shrubs rusp Rubus spectabllis Sample Plot #: 6 Date: 3/24/98 SHAPIRO& ASSCCIATES2 Indicator % Areal Cover Status** Cover Class Midpoint Rank Sum of Midpoints: Dominance Threshold: Indicator Status ** Sp Code Saplings FAC+ % Areal Cover 25 3 Cover Class Midpoint Rank Sum of Midpoints: Dominance Threshold: 20.5 20.5 10.3 Indicator % Areal Cover Status" Cover Class Midpoint Rank Sum of Midpoints: Dominance Threshold: Sp Code Trees Indicator Status ** %Areal Cover Cover Class Midpoint Rank Sum of Midpoints: Dominance Threshold: RECEIVED APR 2 - 1998 PURL C WlORKS ,. '.i,. �....r..l'.iyi,.9':v KitilM.r. u.,r�d.::.. ...�.l i•.7:kaYicu u4.5, % of Dominants that are OBL, FACW, and /or FAC: Hydrophytic Vegetation? Comments: mostly bare ground To determine dominants, first rank species by mkdpoints. Then sum midpoints in order until 501 of total for all species (dominance threshold) is immediately exceeded, All species contributing to this cumulative total plus any others having 20% of the total midpoint value are marked with an asterisk. 100% Yes. " Species That do not appear on the National Ust (Reed, 1988) may have been assigned an indicator status based on field observations and habitat Information from the literature.: WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD VEGETATION UNIT SAMPLING PROCEDURE Project /Site: 1981020p Sample Plot #: 7 Field Investigator(s): CKD Date: 3/24/98 Sp Code, Herbs & Bryophytes SHAPIRO& ASSCiEIATES$ Indicator % Areal Cover Status** Cover Class Midpoint Rank agsp Agrostis sp. FACW -FACU 15 2 10.5 fesp Festuca sp. FACW -UPL ** 15 2 10.5 posp Poa sp. FACW -UPL" 15 2 10,5 eqar Equisetum arvense FAC 3 1 3.0 Sp Code Shrubs Sp Code Saplings Sum of Midpoints: 34.5 Dominance Threshold: 17.3 Indicator % Areal Status" Cover Class Midpoint Rank Cover 111111111111112101 Sum of Midpoints: Dominance Threshold: Indicator % Areal Cover Status ** Cover Class Midpoint Rank Sp Code Trees Sum of Midpoints: Dominance Threshold: Indicator Status'• % Areal Cover Cover Class Midpoint Rank Sum of Midpoints: Dominance Threshold: RECEIVED APR 2 - 1998 TUKWILA PUBLIC WORKS 4 .H�Mt it thud +:v,1 :r•i� 0‘x;.,• .'r�:`• r v + viK -'ya :v• +(+. Sith�:f l�..y.., of Dominants that are OBL, FACW, and /or FAC: undetermined Hydrophytic Vegetation? . Comments: it appears the site has recently been cleared of blackberry vegetation and grass mixture has been planted In recent weeks, identification of new grass insufficient to make hydrophytic vegetation call, 50% bare ground To determine dominants, first rank species by midpoints, Then sum midpoints in order " Species that do not appear on the National Ust (Reed, 1988) may have been assigned an Indicator until 5096 of total for all species (dominance Threshold) is immediately exceeded. Al status based on field observations and hab8at information from the literature. species contributing to this cumulative total plus any others having 20% of the total midpoint value are marked with an asterisk, WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD VEGETATION UNIT SAMPLING PROCEDURE Project /Site: 1981020p Sample Plot #: 8 Field Investigator(s): CKD Date: 3/24/98 SHAPIRO& ASSCWIATFS2 Indicator % Areal Cover Sp Code._ Herbs & Bryophytes Status ** Cover Class Midpoint Rank agsp Agrostis sp. FACW -FACU 7 2 10.5 fesp Festuca sp. FACW -UPL ** 7 2 10.5 posp Poa sp. FACW -UPL ** 7 2 10.5 eqar Equisetum arvense FAC 8 2 10.5 1 Sp Code Shrubs Sum of Midpoints: 42.0 Dominance Threshold: 21.0 1621111131126 11110SIMINISIMILIMSSINECO111111116112=11 Indicator %Areal Cover Status ** Cover Class Mid oint Rank rusp Rubus spectabills Sp Code Saplings vontemovaanammak Sp Code Trees FAC+ 40 4 38.0 1 Sum of Midpoints: Dominance Threshold: 38.0 19.0 Indicator % Areal Cover Status ** Cover Class Mid • olnt Rank Sum of Midpoints: Dominance Threshold: Indicator Status ** % Areal Cover Cover Class Midpoint Rank Sum of Midpoints: Dominance Threshold: RECEIVED APR 2 - '1998 TUKWILA PUBLIC WORKS a�.IrJ1ra .t :d ,i4-11:4 4. r; "• % of Dominants that are OBL, FACW, and /or FAC: undetermined Hydrophytic Vegetation? Yes Comments: grass mixture has been planted in recent weeks, identification of new grass insufficient to make hydrophytic vegetation call, 60% bare ground To determine dominants, first rank species by midpoints. Then sum midpoints in order until 50% of total for all species (dominance threshold) Is Immediately exceeded. All species contributing to this cumulative total plus any others having 20% of the total midpoint value ate marked with an asterisk. '• Species that do not appear on the National List (Reed, 1988) may have been assigned an Indicator status based on field observations and habitat Information from the literature. WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD SOILS, HYDROLOGY & SUMMARY Project Number: 1981020p Project /Site: Tukwilla Field Investigator(s): CKD SOILS SCS Mapping Unit: Arent's, Alderwood series Field Identification: No Is soil on hydric soils list? No Date: 3/24/98 Sample Plot #: 1 Is soil a histosol? No Histic epipedon present? No Is soil mottled? Yes Is soil gieyed? No Horizon Horizon Depth Texture Matrix Color Mottle Color Occurrence of Mottles Gley Organic Color Content 0 -6" 6 " -18" Loam sandy loam 10YR 4/3 none none 10YR 3/3 2.5Y 4/3 f, 2, f none low none low Landform /Topography: sloped grass field, enclosed by roads, park, forested wetland, and SR518 ROW forested area Comments: parcel cleared of vegetation in recent past, now has planted grass, stormwater ditch traverses parcel Hydric Soils? No Basis: high chromas, mottling is sparse HYDROLOGY Is ground surface inundated? No Is soil saturated? No Depth to free - standing water In pit: None ❑ Yes ® No - Oxidized root zones ❑ Yes ® No -Water marks. ❑ Yes ® No -Drift lines ❑ Yes ® No - Water -borne sediment deposits Comments: No hydrologic features Surface water depth: None Depth to saturation: None ❑ Yes IR No - Water - stained leaves ❑ Yes ® No - Surface scoured areas ❑ Yes ® No - Wetland drainage patterns ❑ Yes IN No - Morphological plant adaptations Wetland Hydrology? No Basis: No evidence of hydrology SUMMARY Do normal environmental conditions exist at the plant community? Yes Has the vegetation, soils, and /or hydrology been significantly disturbed? No Disturbed area? No Basis: No evidence Problem area? No Basis: No evidence APR 2 - 1998 TUKWILA PUBLIC WORKS Comments: it appears blackberry vegetation was cleared in recent past and grass mixture has been planted in recent weeks, therefore soils and hydrology have been used to determine wetland/upland distinction where grass is dominate Is the hydrophytic vegetation criterion met? ? Is the hydric soil criterion met? No Is the wetland hydrology criterion' met? No Is the vegetation unit or plot wetland? No Rationale for jurisdictional decision: soil and hydrology parameters not met WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD SOILS, HYDROLOGY & SUMMARY Project Number: 1981020p Project /Site: Tukwilla Field Investigator(s): CKD SOILS SCS Mapping Unit: Arent's, Alderwood series Field Identification: No Is soil on hydric soils list? No Date: 3/24/98 Sample Plot #: 2 Is soil a histosol? No Histic epipedon present? No Is soil mottled? Yes Is soil gleyed? No Horizon Horizon Depth Texture Matrix Color Mottle Color Occurrence of Mottles 0 -7" sandy loam 7 " -19" sandy loam 10YR 3/2 none none 10YR 5/4 2.5Y 4/4 f, 1, f Gay Organic Color Content none low none low Landform /Topography: sloped grass field, enclosed by roads, park, forested wetland, and SR518 ROW forested area Comments: parcel cleared of vegetation in recent past, now has planted grass, stormwater ditch traverses parcel Hydric Soils? No basis: high chromas, mottling is sparse HYDROLOGY Is ground surface inundated? No Is soil saturated? No Depth to free- standing water in pit: None ❑ Yes RI No - Oxidized root zones ❑ Yes ® No -Water marks ❑ Yes No -Drift lines ❑ Yes IN No - Water -borne sediment deposits Comments: No hydrologic features Surface water depth: None Depth to saturation: None ❑ Yes ® No - Water- stained leaves ❑ Yes ® No - Surface scoured areas ❑ Yes IN No - Wetland drainage patterns ❑ Yes ® No - Morphological plant adaptations Wetland Hydrology? No Basis: No evidence of hydrology SUMMARY Do normal environmental conditions exist at the plant community? Yes Has the vegetation, soils, and/or hydrology been significantly disturbed? No Disturbed area? No Basis: No evidence Problem area? No Basis: No evidence APR 2 - 1998 TUKWILA PUBLIC WORKS Comments: it appears blackberry vegetation was cleared in recent past and grass mixture has been planted in recent weeks, therefore soils and hydrology have been used to determine wetland/upland distinction where grass is dominate Is the hydrophytic vegetation criterion met? ? Is the hydric soil criterion met? Is the wetland hydrology criterion met? Is the vegetation unit or plot wetland? No No No Rationale for jurisdictional decision: soil and hydrology parameters not met Project Number: 1981020p Project /Site: Tukwilla Field Investigator(s): CKD WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD SOILS, HYDROLOGY & SUMMARY Date: 3/24/98 Sample Plot #: 3 SOILS SCS Mapping Unit: Arent's, Alderwood series Field Identification: No Is soil on hydric soils list? No Is soil a histosol? No Histic epipedon present? No Is soil mottled? Yes Is soil gleyed? No Horizon Horizon Depth Texture Matrix Color Mottle Color Occurrence of Mottles Gley Color Organic Content 0 -18" sandy loam 10YR 4/3 2.5Y 4/3 f, 1, f none low Landform /Topography: sloped grass field, enclosed by.roads, park, forested wetland, and SR518 ROW forested area Comments: parcel cleared of vegetation in recent past, now has planted grass, stormwater ditch traverses parcel Hydric Soils? No Basis: high chromas, mottling is sparse HYDROLOGY Is ground surface inundated? No Is soil saturated? No Depth to free - standing water in pit: None CI Yes ® No - Oxidized root zones o Yes ® No -Water marks I] Yes ® No -Drift lines n Yes ® No - Water -borne sediment deposits Comments: No hydrologic features Surface water depth: None Depth to saturation: None ❑ Yes ® No - Water - stained leaves O Yes ® No - Surface scoured areas O Yes ® No - Wetland drainage patterns O Yes M No - Morphological plant adaptations Wetland Hydrology? No Basis: No evidence of hydrology SUMMARY Do normal environmental conditions exist at the plant community? Yes Has the vegetation, soils, and /or hydrology been significantly disturbed? No Disturbed area? No Basis: No evidence Problem area? No Basis: No evidence APR 2 - 1995 TUKWILA PUBLIC WORKS Comments: it appears blackberry vegetation was cleared in recent past and grass mixture has been planted In recent weeks, therefore soils and hydrology have been used to determine wetland/upland distinction where grass is dominate Is the hydrophytic vegetation criterion met? ? Is the hydric soil criterion met? No Is the wetland hydrology criterion met? No Is the vegetation unit or plot wetland? No Rationale for jurisdictional decision: soil and hydrology parameters not met Project Number: 1981020p Project /Site: Tukwilla Field Investigator(s): CKD WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD SOILS, HYDROLOGY & SUMMARY Date: 3/24/98 Sample Plot #: 4 SOILS SCS Mapping Unit: Arent's, Aldeiwood series Field Identification: No Is soil on hydric soils list? No Is soil a histosol? No Histic epipedon present? No Is soil mottled? No Is soil gleyed? No Horizon Horizon Depth Texture Matrix Color Mottle Color Occurrence of Mottles Gley Organic Color Content 0 -18" sandy loam 10YR 3/1 & none none 10YR 2/2 none low Landform /Topography: sloped grass field, enclosed by roads, park, forested wetland, and SR518 ROW forested area Comments: small depression with upland soils along border of pooled area Hydric Soils? Yes Basis: low chromes HYDROLOGY Is ground surface inundated? Yes Is soil saturated? Yes Depth to free - standing water in pit: surface water D Yes D Yes D Yes D Yes ® No - Oxidized root zones ® No -Water marks ® No -Drift lines ® No - Water -borne sediment deposits Surface water depth: 1" Depth to saturation: D Yes D Yes D Yes D Yes No - Water - stained leaves No - Surface scoured areas ® No - Wetland drainage patterns ® No - Morphological plant adaptations Comments: small, 2' X 10" depression, slopes from all sides, upland soils surround pooled area Wetland Hydrology? Yes Basis: pooled water SUMMARY Do normal environmental conditions exist at the plant community? Yes Has the vegetation, soils, and /or hydrology been significantly disturbed? No Disturbed area? No Basis: No evidence Problem area? No Basis: No evidence APR 2 - 1998 TUKWILA PUBLIC WORKS Comments: it appears blackberry vegetation was cleared in recent past and grass mixture has been planted in recent weeks, therefore soils and hydrology have been used to determine wetland /upland distinction where grass is dominate Is the hydrophytic vegetation criterion met? Yes Is the hydric soil criterion met? Yes Is the wetland hydrology criterion met? Yes Is the vegetation unit or plot wetland? No Rationale for jurisdictional decision: small pooled depression area surrounded by upland soils, dominant vegetation Rubus discolor, mostly bare ground, Project Number: 1981020p Project /Site: Tukwilla Field Investigator(s): CKD WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD SOILS, HYDROLOGY & SUMMARY uate: j/ 24/9e3 Sample Plot #: 5 SOILS SCS Mapping Unit: Arent's, Alderwood series Field Identification: No Is soil on hydric soils list? No Is soil a histosol? No Histic epipedon present? No Is soil mottled? No Is soil gleyed? No Horizon Horizon Depth Texture Matrix Color Mottle Color Occurrence of Mottles Gley Color Organic Content 0 -18" Loam to sandy loam 10YR 3/1 & none none none 10YR2/2 low Landform /Topography: sloped grass field, enclosed by roads, park, forested wetland, and SR518 ROW forested area, Comments: parcel cleared of vegetation in recent past, now has planted grass, stormwater ditch traverses parcel Hydric Soils? Yes Basis: Iowchromas, Is ground surface inundated? No Is soil saturated? Yes Depth to free - standing water in pit: none ❑ Yes ❑ Yes ❑ Yes ❑ Yes Comments: HYDROLOGY ® No - Oxidized root zones ® No - Water marks IN No -Drift lines ® No - Water -borne sediment deposits Wetland Hydrology? Yes Basis: saturated soils SUMMARY Surface water depth: None Depth to saturation: 8" ❑ Yes ® No - Water - stained leaves ❑ Yes ® No - Surface scoured areas ❑ Yes ® No - Wetland drainage patterns ❑ Yes ® No - Morphological plant adaptations Do normal environmental conditions exist at the plant community? Yes Has the vegetation, soils, and /or hydrology been significantly disturbed? No Disturbed area? No Basis: No evidence Problem area? No Basis: No evidence 7lJW PUBLIC O Wt�RKS Comments: It appears blackberry vegetation was cleared in recent past and grass mixture has been planted in recent weeks, therefore soils and hydrology have been used to determine wetland/upland distinction where grass is dominate Is the hydrophytic vegetation criterion met? ? Is the hydric soil criterion met? Yes Is the wetland hydrology criterion met? Yes Is the vegetation unit or plot wetland? Yes Rationale for jurisdictional decision: soil and hydrology parameters hydric APR 2 - 1998 WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD SOILS, HYDROLOGY & SUMMARY Project Number: 1981020p vale: J/44/o Project /Site: Tukwiila Sample Plot #: 6 Field investigator(s): CKD SOILS SCS Mapping Unit: Arent's, Alderwood series Field Identification: No Is soil on hydric soils list? No Is soil a histosol? No Histic epipedon present? No Is soil mottled? Yes Is soil gleyed? No Horizon Horizon Depth Texture Matrix Color Mottle Color Occurrence of Mottles Gley Organic Color Content 0 -18" sandy loam 10YR 3/1 none none none low Landform /Topography: sloped grass field, enclosed by roads, park, forested wetland, and SR518 ROW forested area Comments: parcel cleared of vegetation in recent past, now has planted grass, stormwater ditch traverses parcel Hydric Soils? Yes Basis: lowchromas Is ground surface inundated? No Is soil saturated? Yes Depth to free - standing water in pit; 12" o Yes o Yes ❑ Yes ❑ Yes Comments: HYDROLOGY ® No - Oxidized root zones ® No -Water marks ® No -Drift lines ® No - Water -borne sediment deposits Surface water depth: None Depth to saturation: 8" I] Yes ® No - Water- stained leaves O Yes ® No - Surface scoured areas p Yes ® No - Wetland drainage patterns o Yes ® No - Morphological plant adaptations Wetland Hydrology? Yes Basis: saturation and standing water SUMMARY Do normal environmental conditions exist at the plant community? Yes Has the vegetation, soils, and /or hydrology been significantly disturbed? No Disturbed area? No Basis: No evidence Problem area? No Basis: No evidence APR 2 - 1998 TUKWILA PUBLIC WORKS Comments: it appears blackberry vegetation was cleared in recent past and grass mixture has been planted in recent weeks, therefore soils and hydrology have been used to determine wetland/upland distinction where grass is dominate Is the hydrophytic vegetation criterion met? Yes Is the hydric soil criterion met? Yes Is the wetland hydrology criterion met? Yes is the vegetation unit or plot wetland? Yes Rationale for Jurisdictional decision: Three parameters met 11...... oi' Alrl° WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD SOILS, HYDROLOGY & SUMMARY Project Numoer: i s iu'zup Project /Site: Tukwilla Field Investigator(s): CKD SOILS SCS Mapping Unit: Arent's, Alderwood series Field Identification: No Is soil on hydric soils list? No IJalt7. J /44/.70 Sample Plot #: 7 Is soil a histosol? No Histic epipedon present? No Is soil mottled? No Is soil gleyed? No Horizon Horizon Depth Texture Matrix Color Mottle Color Occurrence of Mottles Gley Organic Color Content 0 -12" 1 2"-1 8" sandy loam sandy loam 10YR 3/3 none 10YR 4/3 none none none none low none low Landform /Topography: sloped grass field, enclosed by roads, park, forested wetland, and SR518 ROW forested area Comments: parcel cleared of vegetation in recent past, now has planted grass, stormwater ditch traverses parcel Hydric Soils? No Basis: high chromas, no mottling Is ground surface inundated? No Is soil saturated? No Depth to free- standing water in pit: None HYDROLOGY i] Yes IN No - Oxidized root zones ❑ Yes ® No -Water marks o Yes ® No -Drift lines o Yes ® No - Water -borne sediment deposits Comments: No hydrologic features Surface water depth: None Depth to saturation: None ❑ Yes ® No - Water- stained leaves I] Yes ® No - Surface scoured areas o Yes ® No - Wetland drainage patterns ID Yes ® No - Morphological plant adaptations Wetland Hydrology? No Basis: No evidence of hydrology SUMMARY Do normal environmental conditions exist at the plant community? Yes Has the vegetation, soils, and /or hydrology been significantly disturbed? No Disturbed area? No Basis: No evidence Problem area? No Basis: No evidence RECEIVE! APR 2 _.1998 TUKWILA Comments: it appears blackberry vegetation was cleared in recent past and grass mixture has been plantedn WORKS weeks, therefore soils and hydrology have been used to determine wetland/upland distinction where grass is dominate Is the hydrophytic vegetation criterion met? ? Is the hydric soil criterion met? Is the wetland hydrology criterion met? Is the vegetation unit or plot wetland? Rationale No No No for jurisdictional decision: soil and hydrology parameters not met nlata• 1/04 /QR WETLAND DETERMINATION INTERMEDIATE -LEVEL ONSITE METHOD SOILS, HYDROLOGY & SUMMARY rrojeci Numner: tvolueup Project /Site: Tukwilla Field Investigator(s): CKD SOILS SCS Mapping Unit: Arent's, Alderwood series Field Identification: No Is soil on hydric soils list? No v 11.1 •V • VI i.T /NV Sample Plot #f: 8 Is soil a histosol? No Histic epipedon present? No Is soil mottled? Yes Is soil gleyed? No Horizon Horizon Depth Texture Matrix Color Mottle Color Occurrence of Mottles Gley Organic Color Content 0 -18" silt loam 10YR 3/1 2.5Y 5/4 f, 2, d none low Landform /Topography: sloped grass field, enclosed by roads, park, forested wetland, and SR518 ROW forested area Comments: parcel cleared of vegetation in recent past, now has planted grass, stormwater ditch traverses parcel Hydric Soils? Yes Basis: lowchromas Is ground surface inundated? No Is soil saturated? Yes Depth to free - standing water in pit: 10" 0 Yes D Yes o Yes D Yes Comments: HYDROLOGY ® No - Oxidized root zones ® No -Water marks ® No -Drift lines ® No - Water -borne sediment deposits Surface water depth: None Depth to saturation: at surface o Yes ® No - Water - stained leaves ❑ Yes ® No - Surface scoured areas ❑ Yes ® No - Wetland drainage patterns ID Yes ® No - Morphological plant adaptations Wetland Hydrology? Yes Basis: standing water and saturation SUMMARY Do normal environmental conditions exist at the plant community? Yes Has the vegetation, soils, and /or hydrology been significantly disturbed? No Disturbed area? No Basis: No evidence Problem area? No Basis: No evidence TUKWILA PUBLIC WORKS Comments: it appears blackberry vegetation was cleared in recent past and grass mixture has been planted in recent weeks, therefore soils and hydrology have been used to determine wetland/upland distinction where grass Is dominate Is the hydrophytic vegetation criterion met? Yes Is the hydric soil criterion met? Yes Is the wetland hydrology criterion met? Yes Is the vegetation unit or plot wetland? Yes Rationale for jurisdictional decision: soil and hydrology parameters hydric, grass mixture not dominant RECEIVED APR 2 - 1998 05',Q57. 1, v1 /4 Ni IDL . 402 \i t , .A c I ,, Re N �J \ t4 \ _ , \ \ \ .....,� \\ e... NE39'331321•4 ` \ 156.92 1 \. 4 a II ■ \I ' I 1 ■ ro s b& I b 'N I ) --Ii L _= -,.. -- Planned Improvements under separate permit 1 .,,. , .. .._. kl.) // /, %,�. Emil Concoor�(Typ) '� Tract 48 �'� f;�'- • • ''; ;• o ..4c1).4.4. .� //, O 11 JJ '� Fneh or = 2. b� �;, i '1 �r FcotEtev. - ;r4 CG ; l \ �� . \ r. , .. l ;\ O IA / / -----4.-7:-.1* . 1 is I \,\ \. •\ Gee F•• • '• cn - 4 05' Area to be left undisturbed Provide silt fence during construction. Maintain antii permanent vegetation is established 3H:1V Maximum Embankmen 224 Match planned grades on Tract 48 The Gaih 628N20. - 4.05' Area to be left undisturbed Legend: Proposed 2' Contour Line Existing 2' Countour Line Total estimated Fill = 360 yards Provide silt fence during construction. Maintain until permanent vegetation is established 22V 3H:1V Maximum Embankment Owner: ;S)11.1OM Ofl fd U�IIr1a > {fl_!.. 966 — 1 1dV Scale 1" = 20' Rodger E. Lacy Sr. 4133 - 46th Avenue S. -; L Seattle, WA 98118 �l.r :,; wal 'R I, Match planned grades on Tract 48 •—.•'ti� ,...-..- -.. •� •••,'••••••'•:-•• "fir .1 ' 4- - -- \ •.�; ..L. '-'\. ••a• `C......•�. `--•. permit P7IsTEP3Peomm. EXPIRES / 2 - /4 IP 91. 1 Proposed Grading Plan SCALE: APPROVED SY: ?L. 6. DATE: .30 • 98 Tre Galh Group 628 N 201 Lane. Seattle, WA 98133 200. 546.8901 A portion of Sunnydale Gardens DRAWING NUMBER 98- 1041.- 05- M1'Is c.o