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16-100208 (4)Table 11 Property North of Western Pacific, Plot F Located in shrub area on west edge of cleared wet area cover VE—GETATION Cover WIS Product of Index Class Index Midpoint and Scientific Name Value Midpoint Value WIS Value Trees 4 615 3. 187.5 Alnus rubra Shrubs 2316 66.0 5.0 S— 167.5 486.1 Weighted Mean Index: % of dominant species with a WIS Hydrophytic vegetation (1997 methodology): Yes index of 3.0 or less: ...... VagNotes . ........... ........ . ..... ........ ........... . ... . ..... ...... ...... -- ..... . ...................... . .... . . ........... Habitat Features ....... ............ . ... .......... . (snags, logs, etc.) ......... .... r #. . . ..... . ....... Field Date: 11/14/00 Observers: DG, RL Project Number: 99046-001 Table 11 Continued. e. SOIL Soil pit number Jf=.................. Field observations confirm mapped type? ❑ Yes im No Map Unit (Series/Phase) On hydric list? Yes M No Map Symbol Et ............. Ivam .................• • •• Hydric Inclusion? N Yes ❑ No Profile: Matrix Color Mottle Quantity, Mottle Color Depth Horizon (moist) Size, Contrast (moist) Texture 0-6 brown - dark brown SANDY LOAM (10YR 4/3) 6-14 + light olive brown (2.5Y common, coarse, faint dark yellowish SANDY LOAM 5/3) brown (10YR 4/6) 14+ light olive brown (2.5Y common, coarse, faint darkyallowlsh SILT LOAM/LOAMY 5/3) brown (10YR 4/6) SAND Soil Profile $pils..Yery..slighih!.mo!At..at 1.4.+................. ............................................................................................ Notes:......... .*.......... ...». .... >.... ,...a Hydric Soil Indicators (check): Histosol -1 Aquic Moisture Regime Concretions Histic Epipedon _ Reducing Conditions _ High Organic Surface (sandy soils) Sulfidic Odor Gley/Low Chroma __ Organic Streaking (sandy soils) Hydric Soil Criteria Met? ❑ Yes ® No Rationale anlY..feint.�apttiina.in.uRper..i2.�nha..m;�trix.lrbrplea.Xao.kriahk....................:....................................... e«..:w..»...ari.•.*,.n , aa:.w .e..x.*. ..*«« w....,K...wac«.. : ..<> a ..., ......,.. , .....,m .....+-a.n r.,...a,.,...... HYDROLOGY Field Date: 11/14/00 Field Observations: Recorded Data (gauge or well): Depth of pit -..... ................ Depth to saturation Slighity. m.giALa1-1.4............. Notes (inlet/outlet, etc.): Depth to free water/water table aonr............. 00A.»................................................................................................... Inundation depth t Qtl .. .......... . ........ Otherindicators:....................................................................................................................... Wetland Hydrology? y Yes g No Rationale: oa..iltdiealtQls.at.this..tirr�a..n�n�.asumd.d��in9.ih�.gr.Awia9.sasQa................................................. „ ....... m........ ...... *.......,............ ... �.,. CLASSIFICATION Wetland Criteria Met? -Yes ®No Classification f # lti l ai. i. .( 9tki li i 1' „..... ..., m.....x . Field Date: 11/14/00 Observers: DG, RL Project Number: 99046-001 Table 12 Property North of Western Pacific, Plot G Located in deciduous forest 30 feet west of Plot F west of cleared area VEGETATION Cover over WIS Product of Index Class Index Midpoint and Scientific Name Value Midpoint Value wIS Value revs lnua rubs _ 5 87.5 3.0 _ 262.5 „ Shrubs 233. ambucus racemosa w 1 4 0 0' Herbs Pteridium aquillnum 1 2.5 4.0 10,0 SUMS 192.5 566.1 Weighted Mean Index: .............. 2,9.............. % of dominant species with a WIS Hydrophytic vegetation index of 3.0 or less: 5407 .„....., (1987 methodology): Yes VegNotes ..... .............. �... „ M .. � ..,.4... HabitatFeatures ..... ... .. ..... .. ..a... M ....,,... ...... », ..... ..,.. .a (snags, logs, etc.) ......... ,.... ,, Field Date: 11/14/00 Observers: RL, DG Project Number: 99046-001 Table 12 Continued. N-W W SOIL ervations confirm mapped type? Yes r3No Sail pit number .0 .................... Field obs On hydric list? [3 Yes lig No Map Unit (Series/Phase) Map Symbol EWC,,,. . ..... . —Joam . . ..... Hydric inclusion? E3 Yes Ill No Profile: Matrix Color Mottle Quantity, Mottle Color Depth Horizon (moist) Size, Contrast (moist) Texture 0-8 dark yellowish brown SANDY LOAM (1 OYR 314) --f-1-2--dark brown (I OYR 3/3) SANDY LOAM 12-18 light olive brown (2.5Y SANDY LOAM 5/3) SoilProfile . .. . ........... ............................................................................................. Notes: .... .1 .............. _.__ ...... . ....... Hydric Sail Indicators (check): Histosol = Aquic Moisture Regime Concretions Histic Epipedon = Reducing Conditions = High Organic Surface (sandy soils) Sulfidic Odor Gley/Low Chroma = Organic Streaking (sandy soils) Hydric Soil Criteria Met? -_J Yes g, No Rationale J5.right...rhr.omas...O.Q..hY.df 11r.-,s.gjJ..iRdioWr.& .......................................................................................................... HYDROLOGY Field Date: 11/14/00 Field Observations: Recorded Data (gauge or well): Depthof pit . ........ ....... . _ NIA ............................................................................... ............................... Depth to saturation Notes (inlet/outlet, etc.): Depth to free water/water table njQrip ............ am ............... ........................................................ I ............................ Inundation depth rmna .... ...... . . . .......... ....... ....... . ... ....... Other indicators: ___, ................... - .......... ...... _ .... .. ...... Wetland Hydrology? —Yes E No Rationale: ().QJ0.dj.rMQM ... . . ................................................................ ......................................... . ................. .......................... ........ . .. . .. . .. ..... CLASSIFICATION Wetland Criteria Met? :3Yes ZNo Classification.......................................................................................................................... .......... ..... .. ...... - ....... Field Date: 11/14/00 Observers: RL, DG Project Number: 99046-001 Table 13 Property north of Western Pacific, Plot H Located in small topographic "swale", North of Plot G VEGETATION Cover Zover WIS Product of Index Class Index Midpoint and Scientific Name Value Midpoint Value WIS Value Trees Arius ubra 5 87.5 3.0 262.5 Shrubs ,Rubus spectaDYIS 4 0.0 �Sambucus racemosa 15 �emihe-Ra —ice sl rMIS 3 150-0 12.5 SUMS 227.5 741.9 Weighted Mean Index: ..............13.............. % of dominant species with a WIS Hydrophytic vegetation index of 3.0 or less: . .......... 50A0.0-1 . ...... (1987 methodology): No VegNotes ....... . ..... .......... **"** ...... HabitatFeatures ...... . ..... .......... (snags, logs, etc.) >» ...... 1� .... . Field Date: 11/14/00 Observers: RL, DG Project Number: 99046-001 Table 13 Continued. ,r SOIL Soil pit number H.................... Field observations confirm mapped type? iiiii Yes ❑ No Map Unit (Series/Phase) On hydric list? ❑ Yes N No Map Symbol JEWIC......... loam Hydric inclusion? ❑ Yes g No Profile: Matrix Color Mottle Quantity, Mottle Color Depth Horizon (moist) Size, Contrast (oast) Texture 0-6 dark brown (10YR 3/3) SANDY LOAM a —wA --- 8-12 brown -dark brown SANDY LOAM (10YR 4/3) x SANDY LOAM 18-24 olive brown (2.5Y 4/3) SoilProfile 1inch.duff. a.er....... ...........................................................................................................................I............. Notes: ..,.......<......,, Hydric Soil Indicators (check): - Histosol - Aquic Moisture Regime ` Concretions Histic Epipedon 7, Reducing Conditions ` High Organic Surface (sandy soils) Sulfidic Odor Gley/Low Chroma Organic Streaking (sandy soils) Hydric Soil Criteria Met? Yes E No Rationale........................................................................................................... HYDROLOGY Field Date: 11/14/00 Field Observations: Recorded Data (gauge or well): Depth of pit ....» ....,,.... r ....... , .,.4..... ........ „ ...4 . .................................................... Depth to saturation O.RR ..„............. 1•--l-... Notes (inlettoutlet, etc.). Depth to free water/water table DAJI�t..... ,... ti0it ........ ..........4...4...., ...,4.... ,............ Inundationdepth aorw....-..... .............. —................. .............. ................ ..... .... ............................................................................ Other indicators: {� ..,.. ...... .......... ......y.. .....,.. ;....... 11 .r.a..rnN ..r4+r.e.t .rxn.r.x. w.+ .m.r.rrae y.vcare� Wetland Hydrology? - Yes F., No Rationale: ............................................................................................................................. CLASSIFICATION Wetland Criteria Met? J Yes $ No Classification gpliNldm.dlt6.6.gctiiliClt-r,......4..-.. Field Date: 11/14/00 Observers: RL, DG Project Number: 99046-001 Table 14 Property north of Western Pacific, Plot I Located north of Plot J at north edge of offsite wetland. - over over -Cave class "His Ind ex Frou"UPTS" Midpoint and - index Value Midpoint Value WIS Value Scientific Name Trees car Alnus ruDra Shrubs 2. u5u�sspec�tabffis . u us ursinus 1 0 0 4�01 sera "I uc ta Herbs SUMS 97.5 284.4 Weighted Mean Index: % of dominant speoies with a WIS Hydrophytic vegetation index of 3.0 or less: -- ..... -0167--.- (1987 methodology): Yes Veg Notes ...... . . . ..... ...... ..... ...... . . ....... . ---- ...... . "A Habitat Features ........... ...... ....... ......... ....... . ...... (snags, logs, etc.) - ......... . .......... ............ . . ......... ..... . -- ........ Field Date: 11/14/2000 Observers: RL, DG Project Number: 99046-001 Table 14 Continued. OIL Field observations confirm mapped type? g Yes ❑ No Soil pit number 1 .................. Map Unit (Series/Phase) On h'ydric list? ❑ Yes g No Map Symbol ` `................ loam •. ... Hydric inclusion? a Yes ❑ No Profile: Matrix Color Mottle Quantity, Mottle Color moist Depth Horizon (moist) moist Texture Size, Contrast (moist) pu SILT LOAM 0-17 brown - dark brown (10YR 4/3) 17_24 grayish brown (2.5Y light olive brown SILT LOAM 5/2) (2.5Y 5/6) COURSE SANDY L 24+ (7.5Y 5/2) LOAM Soil Profile ...... K,. ,....,........ ...,µ Notes: .,.,, .,.......,.. ,................... ....... ..,. ,..,,.,., .... ......,. Hydric Soil Indicators (check): Histosol Aquic Moisture Regime - Concretions Histic Epipedon J Reducing Conditions _ High Organic Surface (sandy soils) Sulfidic Odor = Gley/Low Chroma - Organic Streaking (sandy soils) Hydric Soil Criteria Met? ` Yes S No Rationale filnc(It701�.t1.9ytim.oi3.t10i16.1ti..OpC..i1Oh. ,. * ..* ........... HYDROLOGY Field Date: 11/14/2000 Field Observations: Recorded Data (gauge or well): Depthof pit Z4+.............................................................. .. .......... ,,...,...w .. , Depth to saturation nan.......................................... Notes (inlet/outlet, etc.): Depth to free water/water table owe ............ ORl1.�..........................»............................_............................................... Inundation depth Gong. ............................................. ...... Other indicators: a , .... ,......,, Wetland Hydrology? ❑ Yes Z. No Rationale: n.Q.w.QiJ.and.hxdr.y.indicators.......................................................................................... , Wetland Criteria Met? p Yes Z No Classification............. ,.........., ,,..... ,. .m_ ..., �.., Field Date: 11/14/2000 Observers: RL, DG Project Number: 99046-001 Table 15 Property North of Western Pacific, Plot J Wetland, located in topographic love VE--GETATION Co11 rner over WIS " Class Index Product of Midpoint and Index Value Midpoint Value WIS Value Scientific Name trees ® + 2.5 _ e_ _ 7.5 IA/nus rubra I Shrubs�.:__�� ma.., .. Herbs 2.5 SUMS 7.5 Weighted Mean Index: ...„.„..„.A ............ „ % of dominant species with a WIS Hyd ophytic vegetation index of 3.0 or less: ....NQ.dQMiKIArxt.„. 1967 methodology): No species found Veg Notes eltsltiRt.fit?.plli4«I1.1»ill SQItI#li ilylo1e i�P� ' ............... ..... . Habitat Features „ ....., .,>....a.,....»,.„.. (snags, logs, etc. „, . ,., ..„....„ .„..»..„.„,.....„... w.„., .. , ..„..„ ..... > ...,. m,.....,.. ........ «...., Field Date: 11/14/00 Observers: DG, RL Project Number: 99046-001 Table 15 Continued. SOIL..._ Soil pit number Field observations confirm mapped type? ❑ Yes No .................. Map Unit (Series/Phase) 'saa On hydric list? ❑Yes No Map Symbol EWC, .............. lo6m ••• Hydric inclusion? N Yes ❑ No Profile: Matrix Color Mottle Quantity, Mottle Color Depth Horizon (moist) Size, Contrast iTexture 0-3 black (10YR 2/1) ORGANIC 3-15 dark grayish brown common, medium, dark yellowish FINE SANDY LOAM (2.5Y 4/2) distinct brown (10YR 4/6) mmon, medium, light olive brown FINE SANDY L OAM 15-18 light brownish gray co (2.5Y 6/2) faint (2.5Y 5/4) SoilProfile ........ ; •........ . .... .... * ,... <,....... .A.. ........ Notes: . N •. Hydric Soil Indicators (check): Histosol = Aquic Moisture Regime Concretions Histic Epipedon g Reducing Conditions High Organic Surface (sandy soils) -- Sulfidic Odor g Gley/Low Chroma Organic Streaking (sandy soils) Hydric Soil Criteria Met? S Yes ;I No Rationale 1..m.0mma.tNith.M.011105...................................................................................... HYDROLOGY Field Date: 11/14/00 Field Observations: Recorded Data (gauge or well): NIA Depth of pit �iJt1:� :..,.,>„ , ...... .... ,Net ..rx,..+nnNM,d S •itii•N+•++A "ti. Depth to saturation Q.ntge N.(fi1.01 tts. t!!i!.. •..i. Notes (inlet/out Iet, etc.): Depth to free water/water table w i! ...... D .pbary6d.......,... ..N.,......................................... Inundation depth nAtllt................. .................... Other indicators. ....... ..... ..,•.,. ...N Wetland Hydrology? -Si Yes No Rationale: Soll;?.fJOGIIt,..Q:•"...•,., ..•„i ••., . :a<.iN....�. ... iN..,Ni.ix.N.-„ :,..•..N..., .N ....,.., CLASSIFICATION Wetland Criteria Met? Z Yes ❑ No Classification4( pt01tI.iStil*I,,11CGl,l6t»I.I:1tift.i6tN.. ..,.A ..e Field Date: 11/14/00 Observers: DG, RL Project Number: 99046-001 • i PREPARED FOR: Mr. Ken Singh 3817 South 3371h Street Federal Way, WA 98001 PREPARED Y: Wetlands & Wildlife, Inc. 7721-153rd Street SE Snohomish, Washington 98296 (425) 337-6450 March 20, 2015 TABLE OF CONTENTS INTRODUCTION AND BRIEF SITE DESCRIPTION STATEMENT OF QUALIFICATIONS TO CONDUCT THIS CRITICAL AREAS EVALUATION METHODOLOGIES OF CRITICAL AREAS EVALUATION RESULTS AND FINDINGS OF CRITICAL AREAS EVALUATION SUMMARY OF CRITICAL AREAS DETERMINATION LIMITATIONS AND USE OF THIS REPORT REFERENCES AND LITERATURE REVIEWED 1 INTRODUCTION AND BRIEF SITE DESCRIPTION The parcel is located at 35505 Pacific Highway South (tax parcel #292104-9127). The property is located within the incorporated city of Federal Way, Washington. The site is currently undeveloped, primarily comprised of a forested canopy and shrub understory, Wetlands & Wildlife, Inc. was retained to conduct a detailed evaluation of the subject property in relation to the City of Federal Way's Revised Code (FWRC) outlined in Title 19, Division V (Critical Areas) of the City's Zoning and Development Code. Wetlands & Wildlife, Inc. conducted two separate site visits to the subject property, with one visit occurring on February 12, 2015 and one visit occurring on March 10, 2015. The purpose of conducting the Critical Areas reconnaissance visits on the property was to determine if any regulated Critical Areas are located on the property, pursuant to ecological professional industry standards and City of Federal Way requirements. Specifically, Wetlands & Wildlife, Inc. was retained to determine if any wetlands, streams, or associated protective buffer areas regulated by the FWRC exist on the property. In addition to assessing the subject site, Wetlands & Wildlife, Inc. also visually assessed the surrounding properties within approximately 200 feet of the subject property to the extent feasible without accessing adjacent properties due to a lack of legal access, per City requirements. Please review the RESULTS AND FINDINGS OF CRITICAL AREAS EVALUATION section of this report for further information. STATEMENT OF QUALIFICATIONS TO CONDUCT THIS CRITICAL AREAS EVALUATION The following provides a brief overview of my experience and credentials to conduct the detailed evaluations on the subject property. I am the Founder, Owner, and Principal Wetland and Wildlife Ecologist of Wetlands & Wildlife, Inc. I attended the University of Montana where I graduated cum laude with a degree in Wildlife Biology. As of 2015, 1 have 14 years of direct experience as a professional Biologist/Ecologist in western Washington and 18 years of overall experience completing natural resource assessments among many different ecosystems across the western United States. I have worked as a professional Biologist/Ecologist for federal, state, and county environmental agencies, as well as several private environmental consulting firms with specialties in wetlands, streams, rivers, lakes, and wildlife habitat. In my 18 years of experience, I have specialized in review of proposed land use and building development permit applications as they pertain to Critical Areas (wetlands, rivers, streams, lakes, and habitats of protected fish and wildlife species). Much of that experience came as a Senior Reviewing Ecologist for King County DDES and a Regulatory Biologist for Snohomish County PDS. I am listed on several Preferred / Qualified Consultant Rosters throughout western Washington. I am highly experienced with the required U.S. Army Corps of Engineers and Washington State wetland delineation methods. In addition to the wetland delineation certification, I am trained by the Washington Department of Ecology and have 10 years of experience in the use of the required Wetland Rating Form for western Washington (since its inception). I am trained by the Washington Department of Ecology to determine Ordinary High Water Mark (OHWM) locations for rivers, streams, and lakes. In addition to my expertise related to wetlands and streams, I have many years of experience conducting surveys of special -status wildlife species in the western U.S. I received certifications from the Washington Department of Fish and Wildlife for terrestrial wildlife habitat assessments and surveys of special -status wildlife species. Over the past 18 years, I have conducted literally over 1,400 biological I ecological assessments in different Wetlands & Wildlife, Inc. March 20, 2015 Critical Areas Reconnaissance Report Incorporated City of Federal Way (Tax Parcel #292104-9127) Page 1 capacities on properties with many habitat types and zoning designations, from small, urban properties (0.25 acres) to large, rural properties (up to 2,000 acres in size). I have been selected by several local city jurisdictions to provide on -call 3rd-party environmental reviews of proposed development projects for compliance with local Critical Areas Ordinances and the FEMA Floodplain Habitat Assessment and Mitigation document. Wetlands & Wildlife, Inc. used the methodologies described in Determinin the Ordina lei h Water ark on Streams in Washington State (Washington Department of Ecology Publication #08-006-001, April 2008) to make a determination regarding any potential regulated streams, lakes, or rivers on the subject site. Wetlands & Wildlife, Inc. also used the routine methodologies described in the Washington State Wetlands Identification and Delineation Manual (Washington State Department of Ecology Publication #96-94, March 1997) to make a determination regarding the presence of any regulated wetlands. In addition, Wetlands & Wildlife, Inc. evaluated the site using the U.S. Army Colps of Engineers Wetland Delineation Manual produced in 1987 and the U.S. Army Co s of Engineers Regional Sugglement to the Corps of Engineers Wetland Delineation Manual: Western Mountains Valleys and Coast Re ion produced in May 2010 (hereinafter referred to as the "Regional Supplement"). The Regional Supplement is designed for concurrent use with the 1987 Corps Wetland Delineation Manual and all subsequent versions. The Regional Supplement provides technical guidance and procedures for identifying and delineating wetlands that may be subject to regulatory jurisdiction under Section 404 of the Clean Water Act. Where differences in the two documents occur, this Regional Supplement takes precedence over the Corps Manual for applications in the Western Mountains, Valleys, and Coast Region. According to the federal and state methodologies described above, identification of wetlands is based on a three -factor approach involving indicators of hydrophytic vegetation, hydric soils, and presence or evidence of persistent hydrology. Except where noted in the manuals, the three -factor approach discussed above requires positive indicators of hydrophytic vegetation, hydric soils, and wetland hydrology to make a determination that an area is a regulated wetland. Using the aforementioned manuals, the site characteristics for making a wetland determination include the following: 1.) Examination of the site for hydrophytic vegetation (species present/percent cover); 2.) Examination for the presence of hydric soils in areas where hydrophytic vegetation is present; and 3.) Examination to determine if adequate hydrology exists for sufficient durations during the early part of the growing season in the same locations as the previous two steps. Per industry standards, Wetlands & Wildlife, Inc. examined the entire subject site. Per industry standards and City requirements, Wetlands & Wildlife, Inc. also assessed the nearby properties adjacent to the subject property's boundaries, to the maximum extent possible without entering adjacent private properties. While a detailed assessment of Critical Areas on adjacent private properties was not possible due to lack of legal access, Wetlands & Wildlife, Inc. conducted a review of all readily available information to assess the presence of off -site Critical Areas in close proximity to the subject site. The evaluation of adjacent properties is necessary to determine if any regulated Critical Areas exist off -site which would cause Wetlands & Wildlife, inc. March 20, 2015 Critical Areas Reconnaissance Report Incorporated City of Federal Way (Tax Parcel #292104-9127) Page 2 associated protective buffers to extend onto the property and potentially affect a future development proposal on the subject property. In addition to on -site field reviews, Wetlands & Wildlife, Inc. examined aerial photographs and topographical data (elevation contours) on King County's iMAP system. National Wetlands Inventory (NWI) maps produced by the U.S. Fish and Wildlife Service (USFWS), SalmonScape fish distribution maps produced by the Washington Department of Fish and Wildlife (WDFW), StreamNet fish distribution maps produced by Pacific States Marine Fisheries Commission, and Priority Habitats and Species (PHS) maps produced by the Washington Department of Fish and Wildlife (WDFW) were also evaluated as part of our consultation and evaluation of the subject property. Based on our detailed on -site reconnaissance and research of all readily available online materials, it is the professional opinion of Wetlands & Wildlife, Inc. that the subject property does not contain any regulated wetlands, streams, fish and wildlife habitats of importance, or associated protective buffer areas. During our on -site evaluations, Wetlands & Wildlife, Inc. observed an area among the north -central portion of the subject property which is located in a topographic depression. This area contained approximately 12 inches of standing water at the time of our investigations in February and March. However, based on several factors described below in this report, it is our professional opinion that the conditions of this area were unintentionally created after the storage facility and associated infrastructure were built on the property immediately north of the subject property. As part of our detailed evaluation of the subject property, Wetlands & Wildlife, Inc. examined the Revised Wetland Addendum associated with the Western Pacific Property (north of the subject property) which was prepared by Raedeke Associates, Inc. and dated January 23, 2001. The 2001 Revised Wetland Addendum was prepared for the development of the storage facility to the north (Western Pacific Property). The 2001 Revised Wetland Addendum states that the Army Corps of Engineers attended an on -site meeting for that property in 1993 and agreed with the findings of the original wetland delineation. The 2001 Revised Wetland Addendum also states that the City's 3rd-party review consultant (Sheldon & Associates, Inc.) conducted on -site assessments of the property to the north of the subject property and areas within close proximity of that property. Based on the revision requirements provided in October of 2000 by Sheldon & Associates, Inc., the 2001 Revised Wetland Addendum was submitted to the City for additional review. In this 2001 Revised Wetland Addendum dated January 23, 2001, Raedeke Associates, Inc. observed and discussed the subject topographically low area. The top portion of page 7 of the 2001 Revised Wetland Addendum describes the vegetation among the topographically low area as including big - leaf maple (Acer macrophyllum), black cottonwood (Populus balsamifera), common snowberry (Symphoricarpos albus), bracken fern (Pteddium aquilinum) and Himalayan blackberry (Rubus armeniacus). The conclusion regarding this area was that the low area did not appear to meet wetland parameters, in part because of the dominance of vegetation which is rated Facultative Upland (FacU) and in part due to the bright soil conditions along that property's southern border. Of the five vegetation species listed in the 2001 report as being present in this topographically low area, only one of the five species (black cottonwood) has a wetland indicator status of Facultative or wetter, resulting in only 20% of the Wetlands & Wildlife, Inc. March 20, 2015 Critical Areas Reconnaissance Report Incorporated City of Federal Way (Tax Parcel #292104-9127) Page 3 species mentioned meeting the criteria for hydrophytic vegetation. Per the federal and state wetland delineation manuals, a dominance of hydrophytic vegetation is required (>50% of dominant species) in order to meet the vegetative wetland parameter of a given area. Based on this information, the 2001 Revised Wetland Addendum clearly states that this area does not meet wetland parameters as related to hydrophytic vegetation. The Army Corps of Engineers and Sheldon & Associates, Inc. also conducted wetland assessments on the property to the north of the subject property and did not require the area in question to be considered a wetland. The City of Federal Way eventually approved the storage facility project in part based on the wetland evaluations by the professional wetland ecologists, thereby agreeing with the project proponents that no regulated wetlands or streams existed south of the proposed storage unit property (on the current subject property). During our site visit on March 10, 2015, Wetlands & Wildlife, Inc. collected representative data related to the existing vegetation among the area in question, using the Army Corps of Engineers methodologies outlined on the Wetland Determination Data Form for the Western Mountains, Valleys, and Coast Region (Version 2.0). Using these methodologies, only 2 out of the 5 dominant species (40%) have a wetland indicator status of Facultative (Fac) or wetter (hydrophytic vegetation). The federal and state wetland delineation manuals require >50% of the dominant species to be rated as Facultative or wetter to make a positive wetland determination when applying the dominance test. Therefore, the existing vegetation among the area in question does not contain a dominance of hydrophytic vegetation. Due to the marginal nature of this area and obvious hydrology, Wetlands & Wildlife, Inc. also evaluated the existing vegetation using the prevalence index test per the current wetland determination methodologies. Using the prevalence test, a positive hydrophytic vegetation indicator is achieved if the resulting score is less than or equal to 3.0. For this specific area, based on actual data taken among the area in question, the prevalence index is 3.37. Therefore, the vegetation among the area in question does not meet a positive wetland determination based on the dominance test OR the prevalence index. As previously stated in this document, the three -parameter approach to wetland determinations requires positive indicators of hydrophytic vegetation, hydric soils, and wetland hydrology to make a determination that an area is a regulated wetland. In this case, hydrophytic vegetation is not currently present and was not present during all of the previous evaluations by other professional wetland ecologists. Based on the information gathered and reviewed for this project, it is apparent that no regulated wetlands are located on the subject property, and that all areas which may currently display certain wetland characteristics (soils and hydrology) were unintentionally created by the construction of the storage facility to the north of the subject property. The wetland report(s) which was submitted to the City of Federal Way in 2001 (and subsequently approved by the City of Federal Way) provides strong evidence that this area was examined as part of the review associated with the storage facility project. As clearly stated in that report which was approved by the City of Federal Way, no regulated wetlands were located in close proximity to that property's southern property line. Please view the top three (3) paragraphs on Page 7 of the Revised Wetland Addendum associated with the Western Pacific Property (north of the subject property) prepared by Raedeke Associates, Inc. and dated January 23, 2001. As previously stated, the area in question was approved by the City of Federal Way as not being a regulated wetland based on multiple previous evaluations by professional wetland ecologists. The development of the storage facility and the amount of impervious surfaces approved on the property to the Wetlands & Wildlife, Inc. March 20, 2015 Critical Areas Reconnaissance Report Incorporated City of Federal Way (Tax Parcel #292104-9127) Page 4 north of the subject property has significantly altered the local hydrological regime. The retention of hydrology has apparently significantly increased on -site in the topographic low point, creating ponding. Based on all available information, it is highly likely that the extent of impervious surfaces and significant amount of fill associated with the storage unit property caused an interruption in the natural historical stormwater and groundwater regime, ultimately resulting in a significant amount of water collecting in this topographically low point among the north -central portion of the property. In short, it is in our professional opinion that the non -regulated area which currently displays some wetland characteristics was unintentionally created due to its landscape position in relation to the storage facility property which was constructed in either late 2005 or early 2006 (based on review of Google Earth dated aerial photographs). While no regulated wetlands or streams were located on the project site, there are known regulated wetlands and streams located to the northwest and southeast of the subject parcel. The off -site wetland to the northwest is part of the West Hylebos State Park, approximately 313 feet from the subject property at its closest point. Another large wetland complex is mapped as being located to the southeast of the subject site. This wetland system is approximately 350 feet from the subject property at its closest point. Per the FWRC section 19.175, the largest wetland buffer is 200 feet. Therefore, the standard protective buffers from the nearest known off -site wetlands would not extend on -site even if the wetlands required the largest protective buffers to be applied. West Hylebos Creek, a fish -bearing stream, is located within the West Hylebos State Park wetland system previously mentioned. According to the FWRC section 19.165, the largest stream buffer is 100 feet from the Ordinary High Water Mark (OHWM). Therefore, the stream buffer from West Hylebos Creek will not extend on -site. In addition, a tributary to West Hylebos Creek flows through the Hylebos wetland system located southeast of the subject parcel. The stream buffer from the tributary will not extend on -site since it is greater than 350 feet from the nearest property line. SUMMARY OF CRITICAL AREAS DETERMINATION It is the professional opinion of Wetlands & Wildlife, Inc. that no regulated wetlands, streams, or associated buffers are located on the subject property. This determination is a result of our detailed on -site evaluations, review of the previously approved wetland reports associated with the property to the north of the subject property, review of the City of Federal Way's current Critical Areas Regulations, and review of several publicly available map systems and online resources. The extent of development (significant amount of fill and impervious surfaces) associated with the storage unit property to the north of the subject property likely caused an interruption in the natural historical stormwater and/or groundwater regimes, ultimately resulting in a significant amount of water collecting in a topographically low point among the north -central portion of the property. However, multiple professional wetland ecologists conducted wetland evaluations on the property to the storage unit property and also examined areas within close proximity to the storage unit property prior to the storage units and associated infrastructure being constructed. Those wetland professionals included employees from Raedeke Associates, Inc. who conducted multiple different site visits, the Army Corps of Engineers, and the City's own 3rd-party review wetland consultant (Sheldon & Associates, Inc.). None of those professional wetland ecologists stated that a wetland existed in close proximity to the storage unit property's southern property boundary, and that is where the topographically low area is located. In fact, the 2001 Revised Wetland Addendum from Raedeke Associates, Inc. specifically discusses the area in question and concluded that the area did not meet wetland parameters. Furthermore, the City of Federal Way approved the permits associated with the storage unit facility Wetlands & Wildlife, Inc. March 20, 2015 Critical Areas Reconnaissance Report Incorporated City of Federal Way (Tax Parcel #292104-9127) Page 5 development on that parcel, thereby agreeing with the determinations of multiple professional wetland ecologists that no wetlands were located in close proximity off -site to the south of that property where the storage units were ultimately constructed. Based on the information discussed above and discussed previously in this report, it is apparent that no regulated wetlands are located on the subject property, and that the area observed in the north -central portion of the subject property which currently displays some wetland characteristics was unintentionally created by the construction of the storage facility and associated infrastructure to the north of the subject property. Based on our determination that no regulated wetlands, streams, or buffers are located on the project site, it is our professional opinion that no adverse environmental impacts will occur to any such regulated Critical Areas or associated protective buffer areas as a result of any future project activity on the subject parcel. This Critical Areas Reconnaissance Report is supplied to Mr. Ken Singh as a means of determining whether any wetlands, streams, or associated buffers regulated by the Federal Way Revised Code exist on the site or within close proximity of the site which would affect any future proposed activities on the site. This report is intended to provide information deemed relevant in the applicant's attempt to comply with the regulations currently in effect. Please note that Wetlands & Wildlife, Inc. did not have legal access to traverse adjacent private properties in order to determine the extent, location, and classification of any Critical Areas on adjacent properties. The work for this report has conformed to the standard of care employed by professional ecologists in the Puget Sound region. No other representation or warranty is made concerning our professional evaluations or this report. This report is based largely on readily observable conditions and, to a lesser extent, on readily ascertainable conditions. No attempt has been made to determine hidden or concealed conditions. If such conditions arise, the information contained in this report may change based upon those conditions. Please note that Wetlands & Wildlife, Inc. did not provide detailed analysis of other permitting requirements not discussed in this report (structural, drainage, geotechnical, other engineering requirements, etc.). The laws applicable to Critical Areas are subject to varying interpretations. While Wetlands & Wildlife, Inc. upheld professional industry standards when completing this review, the information included in this report does not guarantee agreement or approval by any federal, state, and/or local permitting agencies. Therefore, no work shall commence until permits have been obtained from all applicable agencies. Similarly, I recommend obtaining agreement and/or approval of the information contained in this report by the City of Federal Way and any other applicable agency prior to purchasing the subject property for the purpose of any future development on the parcel. If any questions arise regarding this review, please contact me directly at (425) 337-6450. Wetlands & Wildlife, Inc. Scott Spooner Owner / Principal Wetland & Wildlife Ecologist Wetlands & Wildlife, Inc. March 20, 2015 Critical Areas Reconnaissance Report Incorporated City of Federal Way (Tax Parcel #292104-9127) Page 6 REFERENCES AND LITERATURE REVIEWED Cowardin, et al, 1979. Classification of Wetlands and Dee water Habitats of the United States. U.S.D.I Fish and Wildlife Service. FWS/OBS-79131. December 1979. Environmental Laboratory. (1987). "Corps of Engineers Wetlands Delineation Manual," Technical Report Y- 87-1, U.S. Army Engineer Waterways Experiment Station, Vicksburg, Miss. Federal Way Revised Code. Title 19, Division V, Chapters 19.165 (Streams) and 19.175 (Wetlands). City of Federal Way, Washington. King County iMAP: Interactive Mapping Tool. Administered by the King County GIS Center. hftp:/Iwww.kiagcounly.gov/ogerationsl is1Ma sli AP.as x. Website viewed for project on March 16, 2015. Olson, P. and E. Stockdale. 2010. Determining the Ordinary High Water Mark on Streams in Washington State. Second Review Draft. Washington State Department of Ecology, Shorelands & Environmental Assistance Program, Lacey, WA. Ecology Publication # 08-06-001. PHS on the Web. Web -based interactive map administered by the Washington Department of Fish and Wildlife. htt :itwdf r wa. ovlmagoingi hs . Website last visited for this project on March 16, 2015. SalmonScape. Interactive Mapping website administered by the Washington Department of Fish and Wildlife. hftp://wdfw.wa.gov/mappingisalmonscape/index.html. Website last visited for this project on March 16, 2015. StreamNet. Fish Data for the Northwest. Administered by the Pacific States Marine Fisheries Commission, httlt streamnet.org'. Website last visited on March 16, 2015. U.S. Army Corps of Engineers (2010). 'Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (Version 2.0)," ERDCIEL TR-10-3, U.S. Army Engineer Research and Development Center, Vicksburg, MS. U.S. Fish and Wildlife Service. National Wetlands Inventory Wetlands Mapper. htt : /107,20,228,1'8/Wetlands/W tiand Ma er.html . Washington State Wetlands Identification and Delineation Manual. Washington State Department of Ecology. Publication #96-94. March 1997. Wetlands & Wildlife, Inc. March 20, 2015 Critical Areas Reconnaissance Report h ' Incorporated City of Federal Way (Tax Parcel #292104-9127) Page 7 June 25, 2015 Rob Rueber Clerget Evergreen Limited Partnership 1542 NE 49th Street Tacoma, Washington 198422 RE; Critical Area Report- Parcel #292104-9127 City of Federal Way, Washington SC Job #15-143 Dear Rob, This report describes our observations of jurisdictional wetlands, streams and buffers on or within 225'on Parcel #292104-9127, located at 35505 Pacific Highway South, in Federal Way, Washington (the "site"). The site is an irregular shaped, 4.2 acre parcel located within the NW 1/4 of Section 29, Township 21 NorthRange� 4 East of the W.M. M JUN 2 9-2015 CITY OF FEDERAL WAY CDS Clerget/#15-143 Sewall Wetland Consulting, Inc. June 25, 2015 Page 2 F00yo-tue 11 Ed Sewall of Sewall Wetland Consulting, Inc, inspected the site on June 9, 2015. The site was reviewed using methodology described in the Cor of Engineers Wetlands Delineation Manual (Environmental Laboratory, 1987), and the Western Mountains, Valleys and Coast region Supplement (Version 2.0) dated June 24, 2010, as required by the US Army Corps of Engineers. Soil colors were identified using the 1990 Edited and Revis Edition of the Munsell Soil Color Charts (Kollmorgen Instruments Corp. 1990). 1 The Corps of Engineers Wetlands Delineation Manual/Regional Supplement all require the use of the three -parameter approach in identifying and delineating wetlands. A wetland should support a predominan, ce -of-hydrophytic vegetation,, have-hydric..soils, d.display, wetland hydrology. To be considered hydrophytic vegetation, over 50% of the dominant species in an area must have an indicator status of facultative (FAC), facultative wetland (FACW), or obligate wetland (OBL), according to the National List of Plant Species That Occur in Wetlands - Northwest (Region 9) (Reed, 1988). A hydric soil is "a soil that is saturated, flooded, or ponded long enough during the growing season to -develop - an . aerobic conditions in the 'upper part". Anaerobic cdfiditi6hi are indicated in the field by soils with hydric features such as iron oxide mottles; hydrogen sulfide odor and other indicators. Generally, wetland hydrology is defined by inundation or saturation to the surface for a consecutive period of 12.5% or greater of the growing season. Areas that contain indicators of wetland hydrology between 5%-12.5% of the growing season may or may not be wetlands depending upon other indicators. Field indicators include visual observation of soil inundation, saturation, oxidized rhizospheres, water marks on trees or other fixed objects, drift lines, etc. Under normal circumstances, indicators of all -ieters will be resent in wetland areas three parameters p Clerget/#15-143 Sewall Wetland Consulting, Inc. June 25, 2015 Page 3 Existing Site Documentation. King County Map website According to the King County iMap website (see Vicinity map page 2 of this report), there is a stream located approximately 300' northwest of the site. No wetlands or streams are mapped on the site. Soil Survey According to the NRCS Soil Mapper website, the site is mapped as containing moderately well drained Everett-Alderwood gravelly loam soils. This soil series is not considered "hydric" or wetland soils according to the publication Hydric Soils of the United States (USDA NTCHS Pub No.1491, 1991). Clerget/##15-143 Sewall Wetland Consulting, Inc. June 25, 2015 Page 4 National Wetlands Inventory 1 ) The NWI map depicts no wetlands or streams on the site. The closest wetland is a large wetland associated with Hylebos Creek located approximately 300' northwest of the site. There is also another forested wetland located approximately 250' southeast of the site across SR99. -- Above: NWI Map of the study area BNR Development on Parcel to the north The BNR development to the north, which is a storage facility, mapped the large Hylebos wetland to the west as shown on the map below as well as its associated 200' buffer at that time. At its closest point this wetland is 300' northwest of the site. They did not identify any other wetlands off -site onto the study site. Clerget/#15-143 Sewall Wetland Consulting, Inc_ June25, 2015 Page 5 the site. The closest mapped priority habitat is the large wetland to the wets of the site approximately 300'associated with Hylebos Creek. Clerget/#15-143 Sewall Wetland Consulting, Inc. June 25, 2015 Page 6 Above: WD14'l Field observations The site consists of an undeveloped forested parcel with scattered homeless encampments throughout. The site is generally vegetated with a mix of mature western red cedar and big leaf maple in the overstory with red elderberry, snowberry, vine maple, indian plum, stinging nettle, sword fern, and Himalayan blackberry in the understory. Scattered homeless encampments were noted along with trash and human waste associated with this use. Clerget/#15-143 Sewall Wetland Consulting, Inc. June 25, 2015 Page 7 shrubs and trees within the long ponded portions of the center of the wetland, as well as mature trees within the wetland which have recently become uprooted from being inundated. It is undetermined what has caused this change in hydrology. it is possible the pump and hose noted earlier coming in from the northwest corner of the site has been pumping substantial amounts of water into the site which has caused this change in the wetland. It is also possible the newly developed area to the north has somehow changed the hydrology of this area either trapping more water on the site that may have drained on the surface or subsurface to the north, or just changing subsurface conditions from the construction, or seepage from the storm ponds. It is clear that some recent change has impacted this wetland as areas that had upland plants such as elderberry were observed to have water marks of deep ponding up to 12" deep. Clergetl#15-143 Sewall Wetland Consulting, Inc. June 25, 2015 Page 8 Soils within the wetland were found to be a mix of low chroma sandy loams to.a sapric muck in the low central portion of the wetland. Soils were saturated to within 6" of the surface in the lower portions of the wetland during our site inspection. It appears ponding up to 18" occurs now in this wetland based upon water and sediment marks on vegetation. Using the US Fish and Wildlife Wetland Classification Method (Cowardin et al. 1979), this wetland would be classified as PF01C and PSSL Using the ADOE Wetland Rating System for Western Washington 2014 Update, and rating the wetland as a depressional wetland, this wetland scored a total of 17 points with 4 points for habitat. This indicates a Category III wetland. Under City of Federal Way Ordinance 19.145.420 Vr4L-Gateg4i� 141 xw"Wet have a buffer of 60'. If you have any questions in regards to this report or need additional information, please feel free to contact me at (253) 859-0515 or at esewal L(Zi�sewallwcxom . Sincerely, Sewall Wetland Consulting, Inc. Rd Sewall Senior Wetlands Ecologist PWS #212 Attached: Wetland Rating Forms Data Forms Rating Form maps Survey map Clerget/#15-143 Sewall Wetland Consulting, Inc. June 25, 2015 Page 9 REFERENCES Cowardin, L., V. Carter, F. • and E. '• 1979. • • Wetlands and Deepwater Habitats • the United States. U.S. Fish and Wildlife Service, FWS/OBS-79-31, Washington, D. C. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual, Technical '-■• Y-87-1. U. S. Army Corps •I Engineers Waterways Experiment Station, Vicksburg, Mississippi. Muller-Dombois, D. and H. Ellenberg. • Aims • Methods Vegetation Ecology. John Wiley & Sons, Inc. New York, New Yo 11 r Munsell Color. 1988. Munsell Soil Color Charts. Kollmorgen Instruments Corp., Baltimore, • National Technical Committee for 14ydric Soils. 199 1, Hydric Soils of th�; United States. USDA Misc. Publ. No. 149 1. Reed, P., Jr. 1988. National List of Plant Species that Occur in -Wetlands: Xorthw-'--e-st (Region 9). 1988. U. S. Fish dnd-Wildlift` Ser�rice, Inland Freshwater Ecology Section, St. Petersburg, Florida. Reed, P.B. Jr. 1993. 1993 Supplement to the list of plant species that occur in wetlands: Northwest (Region 9). USFWS supplement to Biol. Rpt. 88(26.9) May 1988. USDA NRCS & National Technical Committee for Hydric Soils, September 1995. Field Indicators of Hydric Soils in the United States - Version 2.1 Western Mountains, Valleys and Coast Regional Supplement (Version 2.0) dated June 24, 2010. USACOE Washington State Wetlands Rating System for Western Washington Revised 2008. 01 .6 1-1 �wwW C) w L'i0 x 0 0 L) LLE rL z < t.!l Ln LLJ LD cr Lo D-- loo F- CL A IN CL C7, SZ! LO m Lj c C:) ;z P Ln (D Lj LL) cn Lij 9 II it W IL v LO L.J 000 L) < 0 C) E� In m caa cq L) U CD 0 0 0 z z C) 1,4 wtcli C) L) M Nc� z co 00 1911P 3: P C17 < LLJ CD m F- rq Ln -n CD LJ CL 0 0 CD r- m < CLI C3 LLJ ii Li L LLJ U/ cr- C:� co ro Cl- �J- < 2c 4� CE j = 0 Li CD 04 C14 CD co cli 4 �q- Lo CD C) C, aC�f "4 U� 2! cl, Lj L'i z z CD w "I (n 42 IL 00,a z ' Hamm 0 z o P 00 co Of Lj U-� En CC) uj — Z, m tL C�l X 00 8 0 LLj 1 '%0 10; - - 0 M m IC14 IC-4 cy- < LLJ 0-j 03 Ld I CD < it Cf) Z� 0 Li cli :z � �; o LO 2 uj En V) to C) z C, LO 7--0 s I LQ-< X"0 Ln . COC, 2 11 m EZ md i, 1, R m JH f d Q, CL C, w MIA, w w Cc cr q:l m '6 g� cu 5 5t M!s I"j to At— 'U r 0 �N cc w 13 sa 45 D 5, 1W ALL i I TE 0 I 0 I I dx R 71 9A FA i IM1111.114 film fill 1 HIM, `c rya nar -9- 1E M Jz" 2.5 5 E !I lu 21 al 15 11 I- I I m 0 v F a'i cy b d a a I3 I F- 3 E 0 A I i a l fit q 7's 9 1-JI an, 1:1 USIVI I 4 1 1 14 1 P, a I 144 b h A 5 3 9 i ,gig ff�f,,f,ff� o n aVa n V s w $ h° f..r ,,r i t r r r 31 3 Q o � a g p 40 K� 3 en 4 — w n a r S I 'A A44 !11 z IL- - W, lit 'o co A, t A 'AIR 0► A itid jill EN Holl G-1 I h 11 11 11.1 1' 'A I ha it -ij, 1� ISX I, is ISM 11 44 1 it ',A Ilk riR A 1AA Fw. TMIK BOUNDARY AND TOPOGRAPHIC SURVEY or MW114. OF THE MEIM OF GEC 2%, KDn 9OW2 —X41 FAK ENwRommEmrAL "M THE 10771 C/O KEN SWOH TWP. It W., PM 4 EAST. W. Y. — — (475)zw-sw F. 11220 BE MOTH PLACE CITY Of FEDERAL WAY We MESTY STATE Of WAMMS7001 -Owlt KENT, WA 90039 i J wjoj� uopzpoqjnV lu-eilnsuoD Put pa/)L\ CaSPUBBOAL, 'gt'1'61 i0jdTaq3 Al ajoi.Ijv T :X11upodso (L6L-gT *oNj oomuT M -P gluuOJIAUH,, piond polupdn flimmi) ,'scoiv 11ROT -IDKll lu 'gtl'61 -'Oldpqo (DXA,,,4) apoD pqs�,,tayfvA lzgdapajjo sluouiojinbai oql,qllm Xoualsisuoo ioi mvp PolepossU PUP UOTILpullop puLjjgjA oT41 moup-d - I :adoaS 31sujL (g,OZ,gZaunf:pgd,Lu,clsXaAjns)u3snv,q�i.iugi�qpQj-edo.id'XoAjnSVj,,IV * (g I OZ IgZ ounf :olep liodai) 11-emgS Aq pajedaid '�Vodmj LQ.IV jvoil�ID o :pap!AojjsjuaWnao(tj Iliodoid oqljo suam, ojqvsnun/ojq'3stl qsllquISO ol polsonbai st podoi uoiluouilop pu-eli,3m oql jo mQTAOl 'SUOT11031TWe ijlwod 2upiluips ol Joild TgAj L, sm• jjoTqm,ojjs ajo-o-OZ-t, --iql 5uTdoloAop ul poisojolu! si lueoildd7a oill :punox2)java joafold PUL B luoo - TISTOAN XPOMS JOULILIcl JOTUOS :iauuvlj parola joqno-d qo-,�] LZ16-t,OTZ6Z# IQOJLd XUM IB-Iopod "IMOS fOMIPH OUID-Od 9099E u 1,913 Uop-eg 110(l pLTEIIDAk — &I UQ 3 .10.IQAH JOA 1 .... . ....... ... ..... ...... . ......... . . ....... ... .. OZO86 VAN 'sPUO'LuPa ,ql,noS QnUaAV P,Z OE I -oul solploossV nupuu-I umuopeno oAgIS MAN RIN w 2 Ll :Iuauodo.ia pa.oaj E0086 VAk'K'uAk IPJOPQJ T41noS onuDAV ,,S gZCEE juaLupodo(I juotudojOAQ(:[4j!untuuioD AVA AjL:IjQpQJJOXjj3 :S41D RTIWr HI Task Scope: 2. Conduct site visit as necessary. 3. Provide written response to findings, recommendations, and request additional information from applicant if needed. 4. Possible meeting with applicant's wetland biologist. 5. Review of resubmitted/corrected documents as needed. 6. Project management as necessary if additional land use review is required. Task Cost: Not to exceed $ without a prior written amendment to this Task Authorization. F.ITTMMS= Consultant Date Applicant EM FITO Wetland Consultant Authorization Form Wetland DeUneadon/15-103153-00-AD Page 2 I-M 1ANDAU ASSOCIATES TECHNICAL MEMORANDUM MMMMeM I OEOMCMr-AL I WUM RESOURCES TO: Stacey Welsh, AICP; Senior Planner City of Federal Way Development Services Department FROM: Steven Quarterman Qsuk RE: PEER REVIEW CRITICAL AREA REPORT — PARCEL #292104-9127 FEDERAL WAY, WASHINGTON INTRODUCTION This technical memorandum provides Landau Associates' peer review comments regarding the Critical Area Report — Parcel #292104-9127 (Critical Area Report; Sewall Wetland Consulting, Inc. 2015) for the existing vacant lot located at 35505 Pacific Highway South, Federal Way, Washington. We also reviewed the ALTA/ACSM Land Title Survey (land survey) that shows the wetland delineated on the property. The purpose of this peer review is to provide a professional opinion regarding applicable regulatory requirements in the City of Federal Way Revised Code (FWRQ Title 19, specifically under G 1. Landau Associates wetlands staff conducted a reconnaissance of the onsite portion of the wetland (identified as Wetland A) on August 19, 2015, and agree with the boundary determination, which generally follows slope •i depression. 2. During the reconnaissance, staff from Landau Associates observed dead vegetation on upland • within the wetland and uprooted trees. This may be due to wetter normal conditions that may have occurred as noted in the report, however it is also noteworthy that the region is in a declared drought (Ecology 2015), which may also affect vigor of vegetation observed during the reconnaissance. 3. The Critical Areas Report includes data forms for four sample points, and the land survey only identifies two of the • sample points. While not a requirement • the FWRC, we recommend that all sample point locations be identified on the land survey. 4. Landau Associates agrees with the wetland rating. The Critical Areas Report identifies the required buffer width associated with the rating of the onsite wetland, and while not a requirement of the FWRC, we recommend that the buffer be included on the land survey. 5. The Critical Areas Report includes a number •I • and we ••:- scales be included on figures, particularly to support evaluation of critical area conditions within 225 feet of the subject property in accordance with FWRC 19.145.410(2). 6. The Critical Area Report provides discussion of USDA Soil Survey information and references that the mapped soil series (i.e., Everett-Alderwood • loam) • the property is not considered a hydric soil in a publication dated 1991. The Everett-Alderwood gravelly loam is listed on the current National List of hydric soils (USDA 2014) with components of the Norma, Seattle, and Tukwila soil series located in depressions. 130 2nd Avenue South • Edmonds, WA 98020 • (425) 778-0907 • fax (425) 778-6409 9 www.landauinc.com 7. Soils identified in sample plot DP#3 are identified as a sapric muck. As detailed in the USACE Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (USACE delineation manual; USACE 2010), the determination of mucky soil material is difficult to distinguish without laboratory testing, however, Landau Associates staff observation of wetland soils in a portion of the onsite wetland appear to satisfy the field procedures for determining the texture of soil materials high in organic carbon provided in the USACE delineation manual. 8. Based on presence of hydric soils and maturity of wetland vegetation, it appears that that changes of hydrology noted have not caused significant change to the forest wetland type. Applicant may elect to further monitor hydrologic conditions to determine wetland extent, which could require several years of monitoring (refer to USACE 2005). -2�M This technical memorandum has been prepared for use by the City of Federal Way in evaluating the adequacy of the Critical Areas Report for the 35505 Pacific Highway South property. The focus of this review was the wetland delineation. The purpose of the review was to assess the adequacy of the submitted documents for compliance with City requirements as promulgated in FVFRC Title 19 and conformance with conventionally accepted critical areas delineation practices. We appreciate this opportunity to be of service to the City. Please contact us if you have any I . - MW = 1, HIM M USACE. 20 10. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region. Technical Report ERDC/EL TR-08-13. U.S. Army Corps of Engineer Research and Development Center Environmental Laboratory. Vicksburg, Mississippi. April. USACE. 2005. Technical Standardfor Water -Table Monitoring of Potential WRAP-05-2. June. USDA Natural Resource Conservation Service. 2014. National Hydric Soils List. http://www.nrcs.usda.gov/wps/PA—NRCSConsumption/download?cid=stelprdbl248596&ext--xlsx. March 8/27115 N238MAMCIerget Crit Area Peer Review TM.doex LANDAU ASSOCIATES 2 Date: March 9, 2016 TO: Balbir Birk Birk Environmental LLC PROJECT -Report 3126 South I'Federal'III 1. O II' Off -Site Stormwater ConveyanceReport 1 INTRODUCTION The main goals of this report is to focus on the assessment off -site drainage conveyance onto the subject property located at 35505 Pacific Hwy S, Federal Way. The task includes the observation of the existing conditions on adjacent properties that may improperly convey storm water onto this property. The parcel in question is located at the NW corner of Pacific Hwy S and S. 356th St. in Federal Way. The parcel number is #2921049127. The parcel is fronted by Pacific Hwy S. to the East, S. 356th St. to the West, Heated Storage facility to the North and Brooklake Community Center to the West. The parcel slopes from East to West. Within the subject parcel there is a closed depression where standing water appeared on the date of observation. The parcel is heavily forested. 3 ExISTING OFF -SITE AND ON -SITE STORMWATER CONVEYANC! The subject site appears to convey all stormwater to the closed depression in the middle of the site. See owner provide survey for location of closed depression. ).W. to the East does not appear to convey stormwater onto the subject site. S. 356tn Community Center (BCC) to the West appears to slope away from the subject site and therefore does not appear to convey stormwater onto the subject site. However, there was a record of a sump pump conveying water from the BCC to the subject;. parcel that has since been abandoned. Heated Storage at the,Crossing H C to the North apoears to convey stormwater onto the subject site. During field observation of the HSC storage facility site, it was observed that much of the stormwater generated from the southernmost building roofs is allowed to convey stormwater directly onto the subject site. It was observed that only half of the roof stormwater was being directed to downspouts while the other half of the roof stormwater was uncontrolled. The half of the roofs that did have downspouts were in disrepair and not tightlined to the stormwater control system. Therefore, at time of observation nearly 100 % of roof stormwater from the southernmost storage buildings was being conveyed onto the subject site. Furthermore, if the storage facility was to repair the existing downspouts only 50% of the stormwater from these roofs would be controlled by the neighboring site. It was observed that holes in the gutters are currently allowing the other 50% of stormwater to convey onto the subject site. It is recommended that the HSC storage facility direct all stormwater from their site to the HSC on -site stomwater facilities. KAUL DESIGN ASSOCIATES, LLC ARCHITECTURE & ENGINEERING Bradley Kaul, RA Principal Figure 1 - Down Spouts disconnected Figure 2- Uncontolled Stormwater i WETLAND BQ FOR ARCO AM/PM-FEDERAL WAY CITY OF rCOUNTY; / CB CURB INLET r«: t 72 o L GE NE 19 J 72 6,4 i.E W 17:` 18' CONC I E 691, Preliminary oNnot For C"';"balftistructioll p ARCO NTI R 0 3000 am/pm FUEL CANOPY w/ B MPD's - 24x48 CAR WASH ^ fit mofta 35505 PACIFIC HWY S 0 r ®swsemsmFEr FEDERALWAY.WA `+ FACiLiTY # TBD E LFJ 16777 3 PERMIT NO. XX-XXXXXX-XX-XX 1OF 1'