Loading...
09-104380 CDraft Wetland Mitigation Plan 1-5 - SR 161/SR 18 Triangle Improvements Project Washington State Department of Transportation Appendix A Wetland N Memo MEMORANDUM CH2MHILL SR-5/SR-18/SR-161 Triangle Project: Delineation of Wetland N To: Jilma Jimenez/Berger ABANI COPIES: Jodi Ketelsen/CH2MHILL FROM: Katina Kapantais/CH2MHILL DATE: October 21, 2008 Introduction and Summary In 2006, field surveys were conducted to determine impacts to wetlands, streams, and fisheries resources from the construction of the proposed SR-5/SR-18/SR-161 Interchange "Triangle" Project. A total of 8 wetlands and 4 drainages were located in the study area (see original SR-5/SR-18/SR-161 Interchange, Wetland Discipline Report [WSDOT 2006]). The largest of the wetlands was Wetland M, which is located just northeast of the SR-18/SR-5 interchange. The four drainages in the study area (Trib16, Trib16A, Trib16B, and Trib16C) were classified as tributaries to East Hylebos Creek. A site visit by WSDOT staff revealed that Trib16B, originally characterized as a low functioning stream channel with characteristics of a bioswale, potentially met wetland criteria. CH21M HILL staff visited the site on July 28, 2008, and determined that a depressional scrub -shrub wetland was present in a portion of Trib16B. Both the wetland and Trib16B were hydrologically connected to Wetland M and Trib 16 approximately 200 feet down slope. Exhibit 1 shows the flow of water in the area, from Trib16B and its associated wetland to Wetland M.CH2M HILL staff returned on August 4, 2008, to conduct wetland delineation and to survey the boundary of the wetland now referred to as Wetland N. Field datasheets from the U.S. Army Corps of Engineers 2008 Wetland Delineation Manual Supplement for the region were used to record the characteristics of the vegetation, soils, and hydrology surrounding each soil pit (U.S. Army Corps of Engineers 2008). This technical memorandum is an addendum to the existing SR-5/SR-18/SR-161 Interchange Triangle Project Wetland Discipline Report (WSDOT 2006), and describes the characteristics of the 0.19-acre Wetland N and the rationale behind classifying it as a Category III depressional scrub -shrub wetland by Department of Ecology and the City of Federal Way guidelines. Wetland N Description Wetland N met the three criteria for hydric soils, hydrology, and vegetation (Tables 1 and 3). Historically, Wetland N was part of a salmon -bearing stream and wetland system that flowed through Wetland M and into Trib16. Past disturbances in the immediate area have UPDATED TRIANGLE INETLNED-N MEMO_01-12-09.DOC SR-51SR-181SR-161 TRIANGLE PROJECT: DELINEATION OF WETLAND N altered and fragmented the drainage feature, and as a result the remnant stream currently functions as a bioswale. Named Trib16B, the feature does not have a defined channel bed, and has no signs of erosional scour on either the stream bank or stream bed. The remnant channel is heavily vegetated by a dense salal thicket (Gaultheria slutllon) with a coniferous overstory of Douglas -fir (Pseudotsuga menreisii) and western hemlock (Tsuga heterophylla). Wetland N was classified as a depressional system based on the presence of a linear running depression in the center of the wetland that ponds water beyond normal storm flow events. Wetland N does not meet the qualifications of a riverine wetland, as the system it is hydrologically connected to no longer functions as a stream. Water enters Wetland N from several sources; flow from Trib16B during storm events, and as groundwater discharge and runoff from the abutting grassy hillside to the north. During storm events, runoff from the surrounding upland areas and roadways drain into Trib16B, which conveys water into Wetland N. Some water ponds in Wetland N, while the rest continues to flow east and down slope, past the berm, where it enters Wetland M and Trib16. Groundwater flow and runoff from the surrounding hillsides also provide Wetland N with water. Signs of seasonal ponding and saturation were evident during the July and August visits. The presence of water marks on low lying vegetation and on mature trees hydrology during part of the year. Debris dams were also present in the wetland. In addition, no upland vegetation occurred within roughly 40 feet of the wetland boundary. Wetland N has a hydric soil profile of 10YR 3/2 with approximately 30 percent of the soil profile containing redoximorphic features between 8-14 inches below ground surface. A total of three soil pits were dug to determine the soil characteristics in the immediate vicinity of Trib16B and Wetland M. Two wetland soil pits (SP1 and SP3) were examined, both having 10YR 3/2 silty loam with prominent, abundant redoximorphic features. Approximately 30 percent of the soil profile contained redoximorphic features between 8-14 inches below ground surface. The upland soil pit (SP2) had no redoximorphic features, and was keyed out to a 10YR 3/3. The upland soil texture was also silty loam, but had a gravel component and was compacted. Vegetation in Wetland N includes a dense shrub thicket of Douglas spirea (Spiraea dottglasit), willow (Salix sitchensis), and thimbleberry (Rebus parviflonts). Deciduous trees, including black cottonwood (Populus balsantifera), red alder (Alnus rubra), and willow form the forested overstory. A herbaceous layer is located in this reach, with slough sedge (Carex obnupta), and Dewey sedge (C. dezveyana) dominant. Wetland N ends approximately 10 feet west of a constructed berm. The upland vegetation surrounding Wetland N consists of Scot's broom (Cytisus scoparius) and grasses. The grasses were not identified as only stems remained from maintenance mowing activities. A distinct vegetative line between the wetland vegetation and the adjacent upland vegetation was observed. Black cottonwood, spirea, and willow were confined within the wetland, and were not located further upslope in the upland. Redoximorphic features were also confined within the wetland only, and were not found upslope in the upland area. UPDATED TRIANGLE WETLAED-N MEMO 01-12-09.DOC SR-SISR-181SR-161 TRWNGLE PROJECT: DELINEATION OF WETLAND N Wetland N was determined to be a Category III depressional wetland, according to the Wetland Rating System for Western Washington (Hruby 2004) (see attached rating form and Tables 1 and 3) and the City of Federal Way criteria. Wetland N is approximately 8,600 square feet or 0.19 acre in size. UPDATED TRL4NGLE_WETLNED-N MEMO 01-12-09.DOC SR-SISR-1&SR-161 TRIANGLE PROJECT: DELINEATION OF WETLAND N Table 1. Soil Hydrology and Vegetation Data from Wetland N, Soil Pit 1(SP1). Soil Pit Soil Depth Soil Matrix Data Soil Redox Data H drolo Observed Plants Percent Cover W-0016B-SP1 0-16" 10YR 3/2 silty loam 7.5YR 5/8 Depression Forest 50 Poptilus balsami era 20 Alnus ncbra Shrub Dotc Ias s irea 80 Salix lasiandra 10 Table 2. Soil, Hydrology and Vegetation Data from Wetland N, Soil Pit 2 (SP2) Soil Pit Soil Depth Soil Matrix Data Soil Redox Data Hydrology Observed Plants Percent Cover W-0016B-SP2 0-7" 10 YR 3/3 gravelly silty loam None Upland Forest Po thus balsami era 50 Alnus ncbra 20 Shrub Douglas spirea 10 Rebus lacinatus 10 Alnus ncbra 20 Rulnts discolor 10 Herbaceous Holcus lanatus 70 H1l ericum radicata 10 Poa ratensis 5 Carex obntc to 5 Trifolitcnt repens 10 UPDATED TRIANGLE WETLNED-N MEMO 01-12-09.DOC SR-51SR-181SR-161 TRIANGLE PROJECT: DELINEATION OF WETLAND N Table 3. Soil, Hydrology and Vegetation Data from Wetland N, Soil Pit 3 (SP3). Soil Pit Soil Depth Soil Matrix Data Soil Redox Data Hydrology Observed Plants Percent Cover W-0016B-SP3 0-16" 10 YR 3/2 silty loam 7.5YR 5/8 Depression Forest Populus balsarnifera 50 Shrub Oelmeria cerisormis 40 Rubus parviflonts 20 SaIiY lasisandra 20 Herbaceous Moss 10 Bare Ground 90 City of Federal Way Wetland Requirements The City of Federal Way Critical Areas Ordinance (FWCC Chapter 19) rates wetlands as Category I, II and III systems on several characteristics. Primary characteristics for rating wetlands include the size of the wetland, its connectivity to fish bearing streams, any association with state or federally listed species, and whether the wetland has any important, local significance. Wetlands between 2,500 to 10,000 square feet that do not exhibit category I or II characteristics are rated category III wetlands. Table 4 shows the wetland classification requirements for each wetland category in Federal Way, Table 4- C'itv of Federal Wav Wetland Cate- gory Characteristics City of Federal Way Wetland Category Characteristics Category 1 have one or more of the following: 1) contain special status and/or listed species by a state or federal agency 2) contain rare plant assemblages, irreplaceable ecological functions or have local significance 3 have three or more wetland classes, one of which is open water Category II have one or more of the following: 1) are contiguous with water bodies or tributaries to water bodies which contain or support fish population 2) are >1 acre in size 3) are less than or equal to one acre in size in its entirety and have 2 or more wetland classes not dominated by non-native invasive species Category III have one or more of the following: 1) >2,500 square feet in area 2) do not exhibit category I and II characteristics Source: Federal Way SALP, Appendix A: Critical Areas Ordinance UPDATED TRIANGLE_WETLNED-N-MEMO 01-12-09.DOC SR-51SR-191SR-161 TRIANGLE PROJECT: DELINEATION OF WETLAND N All wetlands rated as a Category III or higher are required to have a protective buffer surrounding the entirety of the wetland. Table 5 shows the difference buffer sizes regulated to category III wetlands depending on the amount of area they cover. Category III wetlands over 10,000 square feet require a 50 foot buffer. Wetland N is approximately 8,600 square feet or 0.19 acre in size. Wetlands within the City of Federal Way between 2,500 to 10,000 square feet require a 25 foot buffer. Table 5. City of Federal Way Wetland Categories and Buffer Sizes Wetland Category Buffer Size Categoa 1 200 feet Category 2 100 feet Category 3 Greater than 10,000 square feet in area 50 feet Category 3 between 2,500-10,000 square feet in area 25 feet Source: Federal Way S�>'IP, Appendix A: Critical Areas Ordinance The City of Federal Way CAO requires mitigation for impacts and disturbances to Category III and higher wetlands. Mitigation is required to offset the impacts to the wetland, and, if possible, improve the overall functions and values that were provided. Mitigation for wetland impacts occurs through restoring, creating or enhancing the impacted wetland, or another wetland of the same type that is located within the same basin. Based on City of Federal Way CAO, category III scrub/shrub wetlands have a 1.5:1 creation and restoration mitigation ratio, and a 2.5:1 enhancement ratio. Table 6 shows further details mitigation ratio guidelines. Table 6. City of Federal Way Mitigation Ratios Creation and Restoration Wetland Category (ratio of mitigation area to impacted area) Category 1 All Types 6:1 Forested Scrub/ Shrub Emergent Forested Scrub/Shrub Emergent Source: Federal Way S10, Appendix A. UPDATED TRIANGLE 'NETLNED-N MEMO 01-12-09.DOC Category II 3:1 2:1 2:1 Category III 2:1 1.5:1 1.25:1 Critical Areas Ordinance Enhancement (ratio of mitigation area to impacted area) 12:1 6:1 4:1 4:1 4:1 3:1 2.5:1 SR-SISR-181SR-161 TRIANGLE PROJECT: DELINEATION OF WETLAND N References: City of Federal Way. 2007. Shoreline Management Plan. Appendix A: Critical Areas Ordinance. t :Ilwww.citvoffederalway.corn/folders/homelbusinesseconomicdevelo ment/ roicctsconstruction/s bore inemast ro>7ramu datelShareline/n20ReQularions°I°20A endix°/°20A °IQ20Criticat°/20Areas %200rdinance.2df Hruby. 2004. Wetland Rating System of Western Washington. U.S. Army Corps of Engineers. 2008. Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region. httn:l/www.usace.artnv.mil/cwlcecwo/re west mt intersupp.odf WSDOT. 2006. SR-5/SR-18/SR-161 Interchange Triangle Project Wetland Discipline Report. UPDATED TRUINGLE_WETLNED-N MEMO 01-12-09.DOC x� mac- wcF • -- � li„ r m Z B c m v L x W WETLAND DETERMINATION DATA FORM — Western Kountajns, Valleys, and Coast Region p t yfet erZ WCv-/`�, q Projecd5ite: F! �Q�E 1 �0 1�VlCi , _ CitylcounW l� I �R Ga Lk_y 4 _ Sampling Data: V ug y �0 [7 ApplicamvCwner Wc%3DOT State- WA Sampling Point: investigalor(s):./t- !� i` f1�1 1' � �Section,7awnship, Range: -TZ- Landform (hiilslope, terrace, etc.): r�vr�ro_�.S l � _ Local relief (concave, convex, none). (n_n- c UP 5tape {°5j: �:�• rr Subregion (LRR): No CrAl-al. r rt Long: 172 O rt�V, tlbaturn: 1Cft1 oe-vfP i -WL SovfLC Soil Map Unit Name: M �rir fW4 r t +' �O NW[ classification: -i-.C�u -S cUJ Are climatic I hydrologic conditions an the site typical for This time of year'? Yes X No (if no, explain in Remarks.) Are Vegetalion Soii or Hydrology significantly disturbed? Are'Normat Circumstances' present? Yes -L No Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers In Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area Hydric Soil Present? Yes No within a Wetland? Yes ^ No Wetland Hydrology Present? Yes No _ Remarks: VEGETATION — Use scientific names of plants. Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size; —Tc- ) % Cover Specees? Status Number of Dominant Species S_ FAC_ That Are OBL, FACW, or FAC: (A) 2• C i)L —�4L9 19grL Total Number of Dominant 3 _ Species Across All Strata: (B) 4. Percent of Dominant Species ��_ = Total Cover That Are OBL, FACW, or FAC. (A/B) Sdplingf hrubSir�lum (Plot size: 15�E�t—} Q �/ C,nr t RI(ae.LI CtA sR�A.` [ : so i1�] Prevalence Index worksheet: 2 t Lp fjo Total °% Cover of - Mullioty bw 3. ( D (I► In FIV_U OBL species x t = 4 FACW species x 2 = 5 FAC species x 3 = ff�= Total Cover FACU species x 4 = Herb Stratum (Plot size: 3 ,,�� UPL species x 5 = 1, � �`� C)& Column Totals: (A) (B) 2. Prevalence Index = BIA = 3. 4 Hydrophytic Vegetation Indicators: Dominance Test is >50% 5. Prevalence Index is 53.0' 6. _ Morphological Adaptations' (Provide supporting 7 data in Remarks or on a separate sheet) 8. _ Wetland Non -Vascular Plants' g• _ Problematic Hydrophytic Vegetation' (Explain) 10. 'Indicators of hydric soil and wetland hydrology must 11. be present, unless disturbed or problematic. = Total Cover V_Jocd•r Vine Stratum (Plot size: ) 1. _ — Hydrophytic Vegetation 2. Present? Yes No Total Cover % Bare Ground in Herb Stratum_ Remarks: Lf .F� ^._, t C+ 114��c � c"- -� ,y`1 c�A„1-;a,'�rY f Ism !1 . � f '� 1 E�' O 31 C Z�_- I al rttA . WGif of �t r9�✓1 S�ofr« P+/ %t.�., - US Army Corps of Engineers Western Mountains, Valleys, and Coast - Interim Version SOIL Sampling Point: W- W I (oo- o r 1 Profile Description: (Describe to the depth needed to document the indicator or confirm lho absence of Indicators.) Depth Matrix Redox Features (inches) Color maisi is Cefor fmoist)_ %L Type'- Loc Texture Remarks tNZ '7D r7,5N s18 - I•�r,, (��rD�f r`� 'Type- C=Concentration, ❑=De letion. RM=Reduced Matrix. CS=Covered or Coated Sand Grains. 'Location: PL=Pore Lining, M=Malrix. Hydric Sol[ Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils': _ Histosol (At) _ Sandy Redox (S5) _ 2 cm Muck (A10) _ Histic Epipedon (A2) _ Stripped Matrix (S6) _ Red Parent Material (TF2) _ Black Histic (A3) _ Loamy Mucky Mineral (F1) (except MLRA 1) _ Other (Explain in Remarks) _ Hydrogen Sulfide (A4) _ Loamy Gleyed Matrix (F2) _ Depleted Below Dark Surface (At 1) _ Depleted Matrix (F3) _ Thick Dark Surface (At 2) Redox Dark Surface (F6) 'Indicators of hydrophytic vegetation and _ Sandy Mucky Mineral (S1) _ Depleted Dark Surface (F7) wetland hydrology must be present, _ Sandy Gleyed Matrix (S4) _ Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes _V_ No Remarks: 5 o'r l I/, 44,,t vpp-c-r SZ ill C. tZ Kag a. f"CL , X 0-1 3 and a C Pvr z>-� of 2, m bo, �0a �- bsh nc+ red.&X Go ice vr�,-<vnz 1,1 fic s-o r f e ro c he, HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one r_eauired: clierk all that apply) Secondary Indicators 12 or more reoulred] _ Surface Water (Al) Water -Stained Leaves (B9) (except MLRA _ Water -Stained Leaves (139) (MLRA 1, 2, _ High Water Table (A2) 1, 2, 4A, and 419) 4A, and 4B) _ Saturation (A3) _ Salt Crust (1311) XDrainage Patterns (B10) Water Marks (131) — Aquatic Invertebrates (B13) — Dry -Season Water Table (C2) — Sediment Deposits (132) _ Hydrogen Sulfide Odor (Cl) — Saturation Visible on Aerial Imagery (C9) — Drift Deposits (83) _ Oxidized Rhizospheres along Living Roots (C3) _ Geomorphic Position (D2) _ Algal Mat or Crust (134) _ Presence of Reduced Iron (C4) _ Shallow Aquilard (D3) _ Iran Deposits (B5) - _ Recent Iron Reductiodin Tilled Soils (C6) _ FAC-Neutral Test (135) _ Surface Sal Cracks (B6) _ Stunted or Stressed Plants (D1) (LRR A) _ Raised Ant Mounds (D6) (LRR A) _ Inundation Visible on Aerial Imagery (137) _ Other (Explain in Remarks) _ Frost -Heave Hummocks (D7) _ Sparsely Vegetated Concave Surface (BB) Field Observations: Depth Surface Water Present? Yes Water Table Present? Yes No (inches): No Depth (inches): y_ Saturation Present? Yes No Depth (inches): I Wetland Hydrology Present? Yes No Recorded Data (stream gauge, monitoring well, photos, previous inspections), if available: Remarks: wcde-c +1DQ(,,A tt! j+(Qe-�� i++_ M tA1.�iPe _m-} `i "I �Q. �� /� [5(. atn d l 5� 1` D C�c. Pam{ 4/1 A �OF� ftg(1 Q1 G /P/Vinp Gy (P�1 i f:Q l , w • fA I/u 7( C9�) C- ��i16✓l S Ti P�'v] Gc __ a b(as(„[e • r�J�-alyt.l rc lx�a �rounr�lrsc.-ar5e►-, IQ �r+M zvetx�S ��ewPA 4-r, L of c,,,� car► US Army Corps of Engineers Western Mountains, Valleys, and Coast - Interim Version WETLAND DETERMINATION DATA FORM — Western Mountains, Valleys, and Coast Region ProjeCJSlte: *i rev'-s A-r_ p4-01cc - AWE"e,- } _ ___ City/County: 1 [�W Sampling Date: Applicant(Owner: S T "T State: �� Sampling Point: V r001 i Investigator(s): !ti► Kaca _ AA':5 )Fr. TLd_ e____ Section. Township. Range: S21 TZI M RL I !,_� Landform (hilislope, terrace, eic_): IAS 1 2. I Local relief (concave, convex. none): (P-W)V" Slope (%); _ Subregion (LRR): '0Ckinu1t _E 10Ta : lr Long- 7'ZZo 17 i 41 • Yf r/ DaturnSa4jrM Soil Map Unit Name: AM - I NWI cfassifcav= D_Scr-.s rV10 Are climatic / hydrologic canditions on the site typical for this lime of year? Yes \,<' No (if no, explain in Remarks.) Y Are Vegetation , Soil , or Hydrology significantly disturbed? Are'Normat Circumstances" present? Yes f` No Are Vegetation . Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area 1 / Hydric Soil Present? YeS No \ / within a Wetland? Yes No x Wetland Hydrology Present? Yes No x ` Remarks: VEGETATION — Use scientific names of plants. r ADSOMe uominam Inaicawf Tree Siraium (Plot size: , Q t ) % Cover Species? Status 1. 0.5gn t IkEE %.9_ FA(__ 2. Ujkfa - PA C 3_ Total Cover Sal2finglShrub Stratum (Plot size: ) ��t 1. lnr t r+nxhJ_ I o moo L 2_ r =' 4. �� —pin 5. _ r r ) = Total Cover 1 r v {Plot size; � � W . . i 2. �. o F� 1f f R 4. 6. 7. — 9. — 10_ 11. — 9Q = Total Cover Woody Ana Strat+Um (Plot size: ) 1. - — 2. y_= Total Cover °.6 Bare Ground in Herb Stratum } Remarks: Ga-anx Db ''r,;,! '�wrbaceous ka , Dominance Testworksheet: Number of Dominant Species That Are OBL, FACW, or FAC: (A) Total Number of Dominant Species Across All Strata (B) Percent of Dominant Species That Are OBL, FACW, or FAC:-iQQ--(A/B) Prevalence Index worksheet: To over df Musliraly by _ OBL species ,jQ_ x 1 = FACW specles 1�0" x 2 = �� FAC species ESL— x 3 = FACU species q_ x 4 = _�(v UPL species 0 x 5 = _ V Column Totals: ZO (A) Prevalence Index = B/A = 11 h Dominance Testis >50% (I a) P-V Prevalence Index is 53.0`cmo) _ Morphological Adaptations` (Provide supporting data in Remarks or on a separate sheet) _ Wetland Non -Vascular Plants' _ Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturted or problematic. Hydrophytic Vegetation Present? Yes No Pew US Army Corps of Engineers Western Mountains, Valleys, and Coast - interim Version SOIL Sampling Point: W -006(0Pi-5PZ Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features , Inches) Color (moisttI % Color (moist) % TYpe' Loc Texture Remarks `Tvoe: C=Concentration. D=Deorelicn, RM=Reduced Matrix. CS=Coveted or Coated Sand Grains. 'Location: PL=Pore Lining_ M=Matrx. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils': _ Histosol (Al) _ Sandy Redox (S5) _ 2 cm Muck (A10) _ Hlstic Epipedon (A2) _ Stripped Matrix (S6) _ Red Parent Material (TF2) — Black Histic (A3) _ Loamy Mucky Mineral (Fi) (except MLRA 1) — Other (Explain in Remarks) — Hydrogen Sulfide (A4) _ Loamy Gleyed Matrix (F2) — Depleted Below Dark Surface (Al 1) — Depleted Matrix (173) _ Thick Dark Surface (Al2) _ Redox Dark Surface (F6) 'Indicators of hydrophytic vegetation and _ Sandy Mucky Mineral (S7) _ Depleted Dark Surface (F7) wetland hydrology must be present, _ Sandy Gleyed Matrix (S4) _ Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): j tom,' Type: H "o&,n 4 i D Dr o Ge^t Lv [+err ti ltco4t"fs. _ ri No :'a.f a PC-1 CC- Feg)sa No Depth (inches): t11cLLa Ij Hydric Soil Present? Yes Remarks: t rr,, l.2,,, I HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required Surface Water (Al) _ Water -Stained Leaves (B9) (except MLRA _ Water -Stained Leaves (139) (MLRA 1, 2, _ High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B) _ Saturation (A3) — Salt Crust (B11) _ Drainage Patterns (1310) _ Water Marks (Bi) ___, Aquatic Invertebrates (1313) _ Dry -Season Water Table (C2) _ Sediment Deposits (B2) _ Hydrogen Sulfide Odor (C1) _ Saturation Visible on Aerial Imagery (Cg) _ Drift Deposits (B3) _ Oxidized Rhizospheres along Living Roots (C3) _ Geomorphic Position (02) _ Algal Mat or Crust (B4) _ Presence of Reduced Iron (C4) _ Shallow Aquitard (D3) — Iron Deposits (85) — Recent Iron Reduction in Tilled Soils (C6) _ FAC-Neutral Test (05) _ Surface Soil Cracks (06) _ Stunted or Stressed Plants (01) (LRR A) _ Raised Ant Mounds (06) (LRR A) — Inundation Visible on Aerial Imagery (B7) _ Other (Explain In Remarks) _ Frost -Heave Hummocks (D7) _ Sparsely Vegetated Concave Surface (B8) Surface Water Present? Water Table Present? Saturation Present? (includes capillary fringe Describe Recorded Date Wetland Hydrology Present? Yes No (stream gauge. monitoring well, aerial photos, previous inspections), Remarks: �'% woo'vl Yes No — Depth (inches): Yes No_ Depth (inches): Yes No Depth (inches): Ire te.8,rc Cw-4-vceS pl Soil P H% US Army Corps of Engineers Western Mountains, Valleys, and Coast — Interim Version WETLAND DETERMINATION DATA FORM — Western Mountains, Valleys, and Coast Region ProjecUSite: rl an+z IP QrcltGt City/County: KI Ca So �, ' Sampling Date: �T L4, Z'2r✓ --�- �p Applicant/Owner: State: - I�J[ Sampling Point: Investigator(s)-YRnI'Ot S, -(,IA- l #c r Section, Township, Range. a♦ COI -Ry e % l Landform (hillslope, terrace, etc.):. i7wi S I � Slope Local relief (concave, convex, none): � P ' 34,$6 y+ Lon IZ l�7' q, Datum: Subregion (LRR): li}o t�i'�WQ.$#'' D fry t:i^ (,04�'}L3f:� f 9� . Soil Map Unit Name: fiord % Arf-b: NWI classificafion: C Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) scrUb-'a�vf V Are Vegetation Soil or Hydrology significantly disturbed? Are 'Normal Circumstances' present? Yes Y_ No Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks_) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Hydric Soil Present? Wetland Hydrology Present? Remarks: VEGETATION — Use scientific names of plants. Is the Sampled Area within a Wetland? Absolute Dominant Indicator Dominance Test worksheets Tree Sicatu (Plot size: % Gover Species? Status — Number of Dominant Species That Are OBL, FACW, or FAC: (A) 2. Total Number of Dominant 3 Species Across All Strata: (B) 4. Percent of Dominant Species = Total Cover That Are OBL, FACW, or FAC: (A/B) 5a tin 1Shrub Stratum (Plot size: l_� ta I r,, ,, L40 Not._ �4GV Prevalence Indexworkshoot' 1 2 �-���'t Total 96 Cover Multiply by: 1 i �� Zo�EAC7 OBL species x 1= 3. 4 S , fjjW FACW species x 2 = 5 FAC species x 3 = �_ = Total Cover FACU species x 4 = Herb Stratum � (Plot size: I f ` of UPL species x 5 = 1. Column Totals: (A) (8) 2. Prevalence Index = B/A = 3. Hydrophyttc Vegetation indicators: 4 _ Dominance Test Is >50% 5. Prevalence Index is s3.0' 6 Morphological Adaptations' (Provide supporting 7. _ data In Remarks or on a separate sheet) 8. _ Wetland Non -Vascular Plants' g- _ Problematic Hydrophytic Vegetation' (Explain) 10. — 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 11. �= Total Cover Woody Vie tralum (Plot size: ] 1 Hydrophytic VegetationX, 2. �= Present? Yes No Total Cover h % Bare Ground in Herb Stratum �i� Remarks: 1M01(IA �OCCi rn G i�\CAr-Q* ble3 %u 5 TQ� U{75 r JR fGY]r�wY1 5%(eQ'h C1•W,n�l Trl6l�hJ.� Oelr�aFia lcca#d tr el � lepfeSs�nn ,r , 5p1r ca IE Or1 CLITY1Gf11 4 fpllf l 943er f 4alvIl +^-► L41-HI` Western Mountains, Valleys, and Coast- Interim Version US Army Corps of Engineers oe-4ro'"Ea. SOIL Sampling Point: W' 0 o 6'Sf3 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist)_ % Tyr Loc Texture Remarks o-f (o 3 Z "70 r7,5Yf, sl $ 32 -L,_ '�51 S a M Type: C=Concentration. D=De felion, RM=Reduced Matrix. CS=Covered or Coated Sand Grains. Location: PL=Pore Lining. M=Matrix. Hydrfc Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydrtc Soils': _ Histosol (At) _ Sandy Redox (S5) _ 2 cm Muck (A10) _ Histic Epipedon (A2) _ Stripped Matrix (S6) _ Red Parent Material (TF2) _ Black Histic (A3) _ Loamy Mucky Mineral (F1) (except MLRA 1) _ Other (Explain in Remarks) _ Hydrogen Sulfide (A4) _ Loamy Gleyed Matrix (F2) _ Depleted Below Dark Surface (Al 1) Depleted Matrix (F3) _ Thick Dark Surface (Al2) _XRedox Dark Surface (F6) 3Indicators of hydrophytic vegetation and _ Sandy Mucky Mineral (S1) _ Depleted Dark Surface (F7) welland hydrology must be present, _ Sandy Gleyed Matrix (S4) _ Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: u Depth (inches): Hydric Soil Present? Yes � \ No 5 o �r`i n +'t. wpm IZ i�•�e� 1 v� c, r�i-+r ICE �,� � a ril'` Z. a A S4-i ni:4, re, I ex {,wFi' fa*101111", l'I^�35o i 1 p rah e . HYDROLOGY Wetland Hydrology Indicators: Primary indicators (minimum of one required: check all that apniv) Secondary Indicators (2 or more required) _ Surface Water (Al) Water -Stained Leaves (69) (except MLRA _ Water -Stained Leaves (B9) (MLRA 1, 2, High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B) _ _ Saturation (A3) _ Salt Crust (B11) Drainage Patterns (1310) Water Marks (B1) _ Aquatic Invertebrates (B13) _ Dry -Season Water Table (C2) _ Sediment Deposits (B2) _ Hydrogen Sulfide Odor (CI) _ Saturation Visible on Aerial Imagery (Cg) _ Drift Deposits (B3) _ Oxidized Rhizospheres along Living Roots (C3) _ Geomorphic Position (D2) _ Algal Mat or Crust (64) _ Presence,of Reduced Iron (C4) _Shallow Aqultard (D3) _ Iron Deposits (B5) _ _ Recent Iron Reduction in Tilled Soils (C6) _ FAC-Neutral Test (DS) _ Surface Soil Cracks (B6) _ Stunted or Stressed Plants (01) (LRR A) _ Raised Ant Mounds (D6) (LRR A) _ Inundation Visible on Aerial Imagery (67) _ Other (Explain in Remarks) _ Frost -Heave Hummocks (137) _ Sparsely Vegetated Concave Surface (BB) Field Observations. - Surface Water Present? Yes No Depth (inches): Water Table Present? Yes No Depth (inches): Saturation Present? Yes No Depth (inches): Wetland Hydrology Present? Yes No includes ca illa fringe) _ Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections). if available: Remarks: Gn lS � I r1 (a f-C e-'P"^q co 031 � C.01 xc Gu�cCQ/1��y �L^c+icr%5 a S a : Q= fs x�1� . V )04-ec P ow 5 -I4l(bV3- � l so�•"e /p+p-r�'-_0 LIP-"Si-o1-M _ -001,,0 e.,-j r Wa er C� t'50 iJftx LJE{ q"'G ct3 c0��!>O a vn-t 5�� ►'l 6:tnsi"SaA C t�F�. ,��(; �+ -. + f1 v2� rJ �,; al [ e a 2 on 10w, US Army Corps of Engineers Western Mountains, Valleys, and Coast — Interim Version 1 Wetland name or number �Wkvc N I WE, RATING FORNI — WESTERN WASHINGTON Version 2 - Updated July 2006 to increase accuracy and reproducibility among users Updated Oct 2008 with the new WDFW definitions for priority habitats Name of wetland (if known) We,tlw-�A tA Date of site visit: "� 91za ran Rated by 1 rat crn4.t5 � . Trained by Ecology? Yes No Date of training SEC: 21 TWNSU P: 21 NRNGE: HE Is SIT/R. in Appendix D? Yes, No� �[ti,;►foi t ` Map of wetland unit: Figure . Estimated size =, Soo 51 uc,.r4_-00 i` SUMMARY OF RATING Category based on FUNCTIONS provided by wetland I II III IV Category I = Score >=70 Category II = Score 51-69 Category III = Score 30-50 Category IV = Score < 30 Score for Water Quality Functions Score for Hydrologic Functions Score for Habitat Functions TOTAL score for Functions Category based on SPECIAL CHARACTERISTICS of wetland I II Does not Apply Final Category (choose the "highest" category from above) c..... .,....,P F.- :nfnrmatinn ahnnt the wetland unit El Vtretland Uri#;ltas�'�Speei<al Clia'ractcri tic Estuarine ' Wettand..HCM Class 'used for Itatin De ressional Natural Heritage Wetland Riverine Rog Lake -fringe Mature Forest Slope Old Growth Forest Flats Coastal Lagoon Freshwater Tidal Interdunal None of the above Check if unit has multiple l� HUMA classes present Wetland Elating Form —.western Washington i August 2004 version 2 To be used with Ecology Publication 04-06-025 Wetland name or number N C/Ij N Does the wetland unit being rated meet any of the criteria below? If you answer YES to any of the questions below you will need to protect the wetland according to the regulations regarding the special characteristics found in the wetland. c1>leck_ :i t fair Wetltinds` Tlit lla L'`ect� Additivnat;Prate,aion ES; Na in:a$c it ton 0. tire_ `roiectian irecomi� c»idetl fvr. its':c `t'` o SP 1. Has the wetland unit been documented as a habitat for any Federally listed Threatened or Endangered animal or plant species (TIE species)? For the purposes of this rating system, "documented" means the wetland is on the appropriate state or federal database. SP2. Has the wetland unit been documented as habitat for any State listed Threatened or Endangered animal species? For the purposes of this rating system, "documented" means the wetland is on the appropriate state database. Note: Wetlands with State listed plant species are Y categorized as Category I Natural Heritage Wetlands see p. 19 of data form). SPI Does the wetland unit contain individuals of Priority species listed by the WDFW for the state? SP4. Does the wetland unit have a local significance in addition to its functions? For example, the wetland has been identified in the Shoreline Master Program, the Critical Areas Ordinance, or in a local management plan as having special significance. To complete the next art of the data sheet you will need to determine the HvdrogeomoMhic Class of the wetland being rated. The hydrogeomorphic classification groups wetlands into those that function in similar ways. This simplifies the questions needed to answer how well the wetland functions. The Hydrogeomorphic Class of a wetland can be determined using the key below. See p. 24 for more detailed instructions on classifying wetlands. Wetland Rating Form — western Washington 2 August 2004 version 2 Updated with new WDFW definitions Oct. 2008 Wetland name or number 1s1101C.-A M Classification of Wetland Units in Western Washington -If the`hydrolabic.criteria Bted-in eaeh question do iaQt a. ' f?� a�a_ff�e entire unit being ra#ed,-yati probably.have a'uuit with multiple HGM.classes In this case; identify WhicIt hydrDlogic criteria in questions- l-7 apply; and go t6 Qi>Eesti6h`8. 1. e e water levels in the entire unit usually controlled by tides (i.e. except during floods)? NO go to 2 YES — the wetland class is Tidal Fringe If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? YES — Freshwater Tidal Fringe NO — Saltwater Tidal Fringe (Estuarine) If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is rated as an Estuarine wetland. Wetlands that were called estuarine in the first and second editions of the rating system are called Salt Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were categorized separately in the earlier editions, and this separation is being kept in this revision. To maintain consistency between editions, the term "Estuarine" wetland is kept. Please note, however, that the characteristics that define Category I and II estuarine wetlands have changed (see p. ). 2. The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. ndwater and surface water runoff are NOT sources of water to the unit. NO go to 3 YES — The wetland class is Flats If your wetland can be classified as a "Flats" wetland, use the form for Depressional wetlands. f 3. Does the entire wetland unit meet both of the following criteria? The vegetated part of the wetland is on the shores of a body of permanent open water (without any vegetation on the surface) at least 20 acres (8 ha) in size; At least 30% of the open water area is deeper than 6.6 ft (2 m)? iV0 — go to 4 YES — The wetland class is Lake -fringe (Lacustrine Fringe) 6 4. Does the entire wetland unit meet all of the following criteria? i The wetland is on a slope (slope can be very gradual), The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may flow subsurface, as sheetflow, or in a swale without 1 distinct banks. J The water leaves the wetland without being impounded? NOTE: Surface water does not pond in these type of wetlands except occasionally in 1 very small and shallow depressions or behind hummocks (depressions are usually J <3ft diameter and less than 1 foot deep). (90---0 to 5 YES — The wetland class is Slope Wetland Rating Form — western Washington 3 August 2004 version 2 Updated with new WDFW definitions Oct. 2008 Wetland name or number wvl 1.00'�& I v 5. Does the entire wetland unit meet all of the following criteria? The unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river The overbank flooding occurs at least once every two years. NOTE. The riverine unit can contain depressions that are filled with water when the river is of flooding. NO go to 6 YES —The wetland class is Riverine 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during the year. This means that any outlet, if present, is higher than the interior of the wetla � l5 .�of P4. Ili S> NO —go to 7 YES — I'he wetland class is Depressional 1 S 1 °C&}1_-j1 rrt fc-e ce^4-" a- "4'4' t. e Ala • 4ep(es-eccn n. s 7. Is the entire wetland unit located in a very flat area with no obvious depression and no overbank (j,%taj-, flooding. The unit does not pond surface water more than a few inches. The unit seems to ber maintained b high groundwater in the area. The wetland maybe ditched, but has no obvious Y g g Y 1�n" natural outlet..i NO — go to 8 YES — The wetland class is Depressional 1'+t'X GOeft" 1, '_'1 F1k,A 8. Your wetland unit seems to be difficult to classify and probably contains several different HGM clases. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less than 10% of the unit; classify the wetland using the class that represents more than 90% of the total area. 'HGM, Classets ttithin the. wetland uni :liein rated HG1 Class: to :Lase in Ratin Slope + Riverine Riverine Slope + Depressional Depressional Slope + Lake -fringe Lake -fringe Depressional + Riverine along stream within boundary Depressional Depressional + Lake -fringe Depressional Salt Water Tidal Fringe and any other class of freshwater wetland Treat as ESTUARINE under wetlands with special characteristics If you are unable still to determine which of the above criteria apply to your wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Wetland Rating Form — western Washington 4 August 2004 version 2 Updated with new WDFW definitions Oct. 2008 Wetland name or number �i�ov1(8 ( - D De ressionAl and Flats Wetlands WATER QUALITY F.UNCTIOI�iS Indicators that the, wetlarttl Liztit.fi� �ctiaiis Cc iovewarer,rialit , D D 1. Does the wetland unit have the rtotential to improve water quality? D 1.1 Characteristics of surface water flows out of the wetland: Unit is a depression with no surface water leaving it (no outlet) points = 3 D Unit has an intermittently flowine OR highly constricted permanently flowing outlet Dints - Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing) po - Unit is a "flat" depression (Q. 7 on key), or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch points = 1 (If ditch is not permanently flowing neat unit as "intermittently flowing ") Provide Dhoto or drawing Paints [only €ssaro ger hnx] (see p.38) Figure _ P S 1.2 The soil 2 inches below the surface (or duff layer) is clay or organic (use MRCS definitions) D � points = 4 Dints = 0 D 1.3 C aracteristics of persistent vegetation (emergent, shrub, and/or forest Cowardin class) Figure _ Wetland has persistent, ungrazed, vegetation > = 95% of area poi = 5 D Wetland has persistent, ungrazed, vegetation > = 1/2 of area points = 3 Wetland has persistent, ungrazed vegetation > = 1/10 of area porn = i Wetland has persistent, ungrazed vegetation <1/10 of area points = 0 Man of Cowardin vegetation classes DIA Characteristics of seasonal ponding or inundation. This is the area of the wetland unit that is ponded for at least 2 months, but dries out D sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition 5 out of 10 yrs. Area seasonally ponded is > '/2 total area of wetland Dints = 4 Area seasonally ponded is > '/4 total area of wetland points = 2 Area seasonally ponded is <'/ total area of wetland points = 0 Map of H dro eriods D Total for D 1 Add the points in the boxes above D D 2. Does the wetland unit have the opportune to improve water quality? Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from the wetland. Note which of the following conditions provide the sources ofpollutants. A unit may have pollutants comingfrom several sources, but any single source would qualify as opportunity. — Grazing in the wetland or within 150 ft — Untreated stormwater discharges to wetland Tilled fields or orchards within 150 ft of wetland A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields, roads, or clear-cut logging Residential, urban areas, golf courses are within 150 ft of wetland Wetland is fed by groundwater high in phosphorus or nitrogen Other YES multiplier ij 2 NO multiplier is 1 D TOTAL - NYater Quality Functions Multiply the score from D 1 by D2 Add scare to table on p. 1 Wetland Rating Form — western Washington 5 August 2004 version 2 Updated with new WDFW definitions Oct. 2008 Figure — multiplier 2- Wetland name or number }1Ov4 N D Depre5sional •and. Flats ,Wetlands �Oints =t :� WYi3RaLbGIC' FUNCTIOZ �`Tndic tors t 'at_ihe,we nits urii rtctibns to 11 1' 4only l:sevre . y , , . ti :. *6dueeOdin sand �stri ar ,'de aclafion; par box) D 3. Does the wetland unit have the potential to reduce flooding and erosion? (see p.46) D D 3.1 Characteristics of surface water flows out of the wetland unit Unit is a depression with no surface water leaving it (no outlet) points = 4 Unit has an intermittently flowing. OR highly constricted permanently flowing outlet points = 2 Unit is a "flat" depression (Q. 7 on key), or in the Flats class, with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch points = 1 (If ditch is not permanently flowing treat unit as "intermittently flawing ") Unit has an unconstricted, or slinhtly constricted, surface outlet { ermanentl o;vin ] points = 0 D D 3.2 Depth of storage during wet periods Estimate the height ofponding above the bottom ofthe outlet. For units with no outlet measure from the surface ofpermanent water or deepest part (if dry). Marks of ponding are 3 ft or more above the surface or bottom of outlet points = 7 The wetland is a "headwater" wetland" points = 5 Marks of ponding between 2 ft to < 3 ft from surface or bottom of outlet points = 5 Marks are at least 0.5 ft to < 2 ft from surface or bottom of outlet poi is = Unit is flat (yes to Q. 2 or Q. 7 on key) but has small depressions on the surface t rap water points = 1 Marks of ponding less than 0.5 ft points = 0 D D 3.3 Contribution of wetland unit to storage in the watershed Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself. The area of the basin is less than 10 times the area of unit points = 5 The area of the basin is 10 to 100 times the area of the unit Dints = The area of the basin is more than 100 times the area of the unit points = 0 Entire unit is in the FLATS class points = 5 D Total for D 3 Add the points in the boxes above _ D D 4. Does the wetland unit have the opportunity to reduce flooding and erosion? (see p: 49) Answer YES if the unit is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate, tide gate, flap valve, reservoir etc. OR you estimate that more than 90% of the water in the wetland is from groundwater in areas where damaging groundwater flooding does not occur. Note which of the following indicators of opportunity apply. Wetland is in a headwater of a river or stream that has flooding problems xWetland drains to a river or stream that has Hooding problems — Wetland has no outlet and impounds surface runoff water that might otherwise - flow into a river or stream that has flooding problems multiplier — Other YES multiplier i. 2 NO multiplier is 1 D TOTAL - Hydrologic Functions Multiply the score from D 3 by D 4 / Add score to table on p. 1 (o Wetland Rating Form — western Washington 6 August 2004 version 2 Updated with new WDFW definitions Oct. 2008 - I Wetland name or number e t-4 �J '7'hese guastiops apply to wetlands of aff q r � .,. J',:.... r. b - that f:FiYk ctir .. its 'ups ri :. p D }. i L MLA T' JTt (; )N S lsi i caTn s. tm . � 9: • �,t,.�: }. �: H 1. Does the wetland unit have the ot�entiai to provide habitat for many species? 111.1 Vegetation structtre (seep. 72) Figure Check the types of vegetation classes present (as defined by Cowardin)- Size threshold for each class is %a acre or more than 10% of the area if unit is smaller than 2.5 acres. Aquatic bed Emergent plants Scrub/shrub (areas where shrubs have >30% cover) rorested (areas where trees have >30% cover) If the unit has a forested class check if The forested class has 3 out of 5 strata (canopy, sub -canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the forested polygon Add the number of vegetation structures that qualify. If you have: 4 structures or more points = 4 Map of Cowardin vegetation classes 3 structures oints = 2 2 structures porn s - 1 1 structure points = 0 H 1.2. Hydroperiods (seep. 73) Figure Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or !% acre to count. (see text for descriptions ofhydroperiods) Permanently flooded or inundated 4 or more types present points = 3 Seasonally flooded or inundated 3 types present points = 2 Occasionally flooded or inundated 2 types present point = 1 Saturated only 1 type present points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake fringe wetland = 2 points Freshwater tidal wetland = 2 points Map of hydroperods H 1.3. Richness of Plant Species (seep. 75) Count the number of plant species in the wetland that cover at least 10 ft2. (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Ifilfoil, reed canarygrass, purple loosestrife, Canadian Thistle If you counted: > 19 species points = 2 List species below ifyou want to: 5 - 19 species Dints = < 5 species 5pirae-A 6zU3Ia5.11 Caxe_�c obnupk poputuS 6a.1W'Viia Cp&e.X ,vP�Q1rG SaUx lawG.cLca r Total for page Wetland Rating Form - western Washington 13 August 2004 version 2 Updated with new WDFW definitions Oct. 2008 Wetland name or number 'We c it M H 1.4. Interspersion of habitats (seep. 76) Decide from the diagrams below whether interspersion between Cowardin vegetation classes (described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats) is high, medium, low, or none. CD None = 0 points NOTE the r OOO Moderate = 2 points [riparian braided channels] High = 3 points If you have four or more classes or three vegetation classes and open water :ina is always "hich". Use mao of Cowardin vegetation classes re H 1.5. Special Habitat Features: (seep. 77) Check the habitat features that are present in the wetland. The number of checks is the number of points you put into the next column. Large, downed, woody debris within the wetland (>4in. diameter and 6 ft long). Standing snags (diameter at the bottom > 4 inches) in the wetland Undercut banks are present for at least 6.6 ft (2m) and/or overhanging vegetation extends at least 3.3 ft (lm) over a stream (or ditch) in, or contiguous with the unit, for at least 33 ft (1 Om) Stable steep banks of fine material that might be used by beaver or muskrat for denning (>30degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet turned grey/brown) At least'/t acre of thin -stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated. (structures for egg -laying by amphibians) Invasive plants cover less than 25% of the wetland area in each stratum of plants NOTE: The 20% stated in early printings of the manual on page 78 is an error. f H 1. TOTAL Score - potential for providing habitat r Add the.scoresfrom H1.1, H1.2, H1.3, HIA HI.S Comments Wetland Rating Form — westem Washington 14 August 2004 version 2 Updated with new WDFW definitions Oct. 2008 Wetland name or number WIF-'L01%t� N H 2. Does the wetland unit have the opportunity to provide habitat for many species? H 2.1 Buffers (seep. 80) Figure Choose the description that best represents condition of buffer of wetland unit. The highest scoring criterion that applies to the wetland is to be used in the rating. See text for definition of "undisturbed. " — 100 m (330ft) of relatively undisturbed vegetated areas, rocky areas, or open water >95% of circumference. No structures are within the undisturbed part of buffer. (relatively undisturbed also means no -grazing, no landscaping, no daily human use) Points = 5 — 100 m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water > 50% circumference. Points = 4 — 50 m (170ft) of relatively undisturbed vegetated areas, rocky areas, or open water >95% circumference. Points = 4 — 100 m (330ft) of relatively undisturbed vegetated areas, rocky areas, or open water> 25% circumference, . Points = 3 — 50 m (170ft) of relatively undisturbed vegetated areas, rocky areas, or open water for > 50% circumference. Points = 3 If buffer does not meet any of the criteria above — No paved areas (except paved trails) or buildings within 25 m (80ft) of wetland > 95% circumference. Light to moderate grazing, or lawns are OK. Points = 2 — No paved areas or buildings within 50m of wetland for >50% circumference. Light to moderate grazing, or lawns are OK. Points = 2 — Heavy grazing in buffer. Points =1 — Vegetated buffers are <2m wide (6.6ft) for more than 95% of the circumference (e.g. tilled fields, paving, basalt bedrock extend to edge of wetland Points = 0. XBuffer does not meet any of the criteria above. Points =1 Aerial ahoto showing buffers H 2.2 Corridors and Connections (seep. 81) H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian or upland) that is at least 150 ft wide, has at least 30% cover of shrubs, forest or native undisturbed prairie, that connects to estuaries, other wetlands or undisturbed uplands that are at least 250 acres in size? (dams in riparian corridors, heavily used gravel roads, paved roads, are considered breaks in the corridor YES = 4 points (go to H 2.3) NO go to H 2.2.2 H 2.2.2 Is the wetland part of a relatively undisturbed and token vegetated corridor (either riparian or upland) that is at least 50ft wide, has at least 30% cover of shrubs or forest, and connects to estuaries, other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake -fringe wetland, if it does not have an undisturbed corridor as in the question above? YES = 2 points (go to H 2.3) DO H 2.2.3 H 2.2.3 Is the wetland: within 5 mi (8km) of a brackish or salt water estuary OR within 3 mi of a large field or pasture (>40 acres) OR within l mi of a lake greater than 20 acres? YES = 1 {point M = 0 oints Total for page_ Wetland Rating Form — western Washington 15 August 2004 version 2 Updated with new WDFW definitions Oct. 2008 Wetland name or number Noff C,19 M H 2.3 blear or adjacent to other priority habitats listed by WDFW (see new and complete descriptions of WDFWpriority habitats, and the counties in which they can be found, in the PHS report hitp.11fvdfiv. iva govlltablphslist htn; ) Which of the following priority habitats are within 330ft (100m) of the wetland unit? NOTE: the connections do not have to be relatively undisturbed. Aspen Stands: Pure or mixed stands of aspen greater than 0.4 ha (1 acre). Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (full descriptions in WDFW PHS report p. 152). Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. Old-growth/Mature forests: (Old-4-rowth west of Cascade crest] Stands of at least 2 tree species, forming a multi -layered canopy with occasional small openings; with at least 20 trees/ha (8 trees/acre) > 81 cm (32 in) dbh or > 200 years of age. {Mature forests] Stands with average diameters exceeding 53 cm (21 in) dbh; crown cover may be less that 100%; crown cover may be less that 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old -growth; 80 - 200 years old west of the Cascade crest. Oregon white Oak: Woodlands Stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PFIS report p. 158). Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. Westside Prairies: Herbaceous, non -forested plant communities that can either take the form of a dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161). Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. (full descriptions of habitats and the definition of relatively undisturbed are in YVDFW report: pp. 167-169 and glossary in Appendix A). Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth in soils, rock, ice, or other geological formations and is large enough to contain a human. ,Cliffs: Greater than 7.6 m (25 ft) high and occurring below 5000 ft. Talus: Homogenous areas of rock rubble ranging in average size 0.15 - 2.0 m (0.5 - 6.5 ft), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast height of> 51 cm (20 in) in western Washington and are > 2 m (6.5 ft) in height. Priority logs are > 30 cm (12 in) in diameter at the largest end, and > 6 m (20 ft) long. If wetland has 3 or more priority habitats = 4 points If wetland has 2 priority habitats = 3 points If wetland has 1 priority habitat = I point No habitats = points Note: All vegetated wetlands are by definition a priority are not included in this list. Nearby wetlands are addressed in question II2.4) Ike : re.ceavez 1 { �rt1 a rQi ►tee - v e l a - (,u fli f. Vi'Uns Ck5 G (Tr, �_' 16 6) . `Tf i � I L doe,91 yr " a 54-fm�; uj(re_N#`I yt a5 i�� e ram; �ti�'S � s` s+&l i do l�l' 1,1.>✓I ��. C� Wetland Rating Form — western Washing -ton 16 f A gr ,st 2 0 , version 2 Updated with new WDFW definitions Oct. 2008 S{ o' rj r T �0-6 "_J beJ o r 1bcv ,K . Wetland name or number \,je*4Crt. V,-) H 2.4 Wetland Landsca e (choose the one description of the landscape around the wetland that best fits) (seep. 84) - There are at least 3 other wetlands within % mile, and the connections between them are relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating, but connections should NOT be bisected by paved roads, fill, fields, or other i development. points = 5 The wetland is Lake -fringe on a lake with little disturbance and there are 3 other lake -fringe wetlands within %2 mile points = 5 There are at least 3 other wetlands within '/2 mile, BUT the connections between the are disturbed ants — 3 The wetland is Lake -fringe on a lake with disturbance and there are 3 other lake -fringe wetland within `/z mile points = 3 There is at least 1 wetland within '/z mile. points = 2 There are no wetlands within % mile. points = 0 H 2. TOTAL Score - opportunity for providing habitat Add the scores f+-om H2. I, H2.2, H2.3, H2.4 TOTAL for H 1 from page 14 Total Score for Habitat Functions — add the points for H 1, H 2 and record the result on n. 1 I Wetland Rating Form — western Washington - 17 August 2004 J version 2 Updated with new WDFW definitions Oct. 2008 Wetland name or number CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Please determine if the wetland meets the attributes described below and circle the appropriate answers and Category. Wetland Type Category Check off any criteria that apply to the wetland. Circle the Category when the appropriate criteria are. met: SC 1.0 Estuarine wetlands (seep. 86) Does the wetland unit meet the following criteria for Estuarine wetlands? — The dominant water regime is tidal, — Vegetated, and — With a salinity greater than 0.5 ppt. YES = Go to SC 1.1 LN :0 SC 1.1 Is the wetland unit within a National Wil tfe Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park or Educational, Cat. I Environmental, or Scientific Reserve desig nder WAC 332-30-151? YES = Category I NQ to SC 1.2 SC 1.2 Is the wetland unit at least 1 acre in size is at least two of the following three conditions? YES = Category I NQ Category II Cat. I — The wetland is relatively undisturbed (has no ' g, ditching, filling, Cat. II cultivation, grazing, and has less than 10% cover of non-native plant species. If the non-native Spartina spp. are the only species that cover more than 10% of the wetland, then the wetland should be given a dual Dual rating (I/II). The area of Spartina would be rated a Category II while the rating relatively undisturbed upper marsh with native species would be a Category 1. Do not, however, exclude the area of Spartina in I/II determining the size threshold of 1 acre. — At least'/4 of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un-mowed grassland. — The wetland has at least 2 of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. Wetland Rating Form — western Washington 18 August 2004 version 2 Updated with new WDF W definitions Oct. 2008 IWetland name or number wempv-� N SC 2.0 Natural Heritage Wetlands (seep. 87) Natural Heritage wetlands have been identified by the Washington Natural Heritage Cat. I Program/DNR as either high quality undisturbed wetlands or wetlands that support state Threatened, Endangered, or Sensitive plant species. SC 2.1 Is the wetland unit being rated in a Section/Township/Range that contains a Natural Heritage wetland? (this question is used to screen out most sites before you need to contact KVHPIDiVR) S/T/R information from Appendix D _ or accessed from WNHP/DNR web site YES — contact WNHP/DNR (see p. 79) and go to SC 2.2 NOX SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as or as a site with state threatened or endangered plant ctes. YES = Category I NO not a Heritage Wetland SC 3.0 Bogs (seep. 87) Does the wetland unit (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below to identify if the wetland is a bog. If you answer yes you will still need to rate the wetland based on its functions. 1. Does the unit have organic soil horizons (i.e. layers of organic soil), either peats or mucks, that compose 16 inches or more of the first 32 inches of the soil profile? (See Appendix B fo field key to identify organic soils)? Yes - go to Q. 3 �n to Q. 2 2. Does the unit have organic soils, either peats or mucks that are less than 16 inches deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on a ke. or pond? Yes - go to Q. 3 No - Is not a bog for purpose of rating 3. Does the unit have more than 70% covet of mosses at ground level, AND other plants, if present, consist of the "bog" species listed in Table 3 as a significant component of the vegetation (more than 30% of the total shrub and herbaceous cover consists of species in Table 3)? Yes — Is a bog for purpose of rating CNcf - go to Q. 4 NOTE: If you are uncertain about the extent o mosses in the understory you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16" deep. If the pH is less than 5.0 and the "bog" plant species in Table 3 are present, the wetland is a bog. 1. Is the unit forested (> 30% cover) with sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Englemann's spruce, or western white pine, WITH any of the species (or combination of species) on the bog species plant list in Table 3 as a significant component of the ground cover (> 30% coverage of the total shrub/herbaceots cover)? 2. YES = Category I ED— Is not a bog for purpose of rating Cat. l Wetland Rating Form — western Washington 19 August 2004 version 2 Updated with new WDF W definitions Oct. 2008 Wetland name or number I ti SC 4.0 Forested Wetlands (seep. 90) Does the wetland unit have at least 1 acre of forest that meet one of these criteria for the Department of Fish and Wildlife's forests as priority habitats? If you answer yes you will still need to rate the wetland based on its functions. — Old -growth forests: (west of Cascade crest) Stands of at least two tree species, forming a multi -layered canopy with occasional small openings; with at least 8 trees/acre (20 treesihectare) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 inches (81 cm) or more. NOTE: The criterion for dbh is based on measurements for upland forests. Two -hundred year old trees in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW criterion is and "OR" so old -growth forests do not necessarily have to have trees of this diameter. — Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80 — 200 years old OR have average diameters (dbh) exceeding 21 inches (53cm); crown cover may be less that 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old -growth. Cat. I YES = Category I n _ flot a forested wetland with special characteristics SC 5.0 Wetlands in Coastal Lagoons (seep. 91) Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? — The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks — The lagoon in which the wetland is located contains surface water that is saline or brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be meas2 • near the bottom) YES = Go to SC 5.1 not a wetland in a coastal lagoon SC 5.1 Does the wetland meets all of the following three conditions? — The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less than 20% cover of invasive plant species (see list of invasive species on p. 74). — At least'/a of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un-mowed grassland. Cat. I — The wetland is larger than 1/10 (4350 square feet) YES = Category I NO - Category It Cat. II Wetland Rating Form — western Washington 20 August 2004 version 2 Updated with new WDF W definitions Oct. 2008 Wetland name or number W- `w-& M SC 6.0 Interdunal Wetlands (seep. 93) Is the wetland unit west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? YES - go to SC 6.1 not an interdunal wetland for rating If you answer yes you will still n o rate the wetland based on its functions In practical terms that means the following geographic areas: • Long Beach Peninsula- lands west of SR 103 • Gray land -Westport- lands west of SR 105 • Ocean Shores-Copalis- lands west of SR 115 and SR 109 SC 6.1 Is the wetland one acre or larger, or is it in a mosaic of wetlands that is once acre or larger? YES = Category II NO go to SC 6.2 Cat. II SC 6.2 1s the unit between 0.1 and I acre, or is it in a mosaic of wetlands that is between 0.1 and I acre? YES = Category III Categnr�r of �vetlariil Eased on Sp&ial Characteristics rab've fhe:"htghGst " ralin r vetlriticlfcrlls rrzo several C tegot ie:c; ciircl tec611cl Uix If Wou'ai swered . 0 fnr all types enter "hot Applicably oil p.I Wetland Rating Form — western Washington 21 August 2004 version 2 Updated with new WDFW definitions Oct. 2008 Cat. III Draft Wetland Mitigation Plan 1-5 - SR 161/SR 18 Triangle Improvements Project Washington State Department of Transportation Appendix B Wetland Impact Plan Sheets T.21 N. RAE. W.M. S 324TH ST r 1 i 17 s 3]OTH sr E a BEGIN CONSTRUCTION SR 18 MP 2.428 S 338TH ST WE-01 10+00.0 ... ....._.._..._......._..... _..�.-... ............:::........:.. _ EW-01 10+00.69 CITY of FEDERAL WAY S 344TH ST 21 END CONSTRUCTION _ €n SR 161 MP 34.32 20 NS-03 22+86.0 BEGIN PROJECT SR 161 MP 34.26 NS-03 19+17.7 29 �Wkd AUBURN FEDERAL WAY 1 1 F " 1 REGIONAL VICINITY MAP APPLICANT: DEFT. O GTSTATE DEPT. OF TRANSPORTATION BBC" 0�1;�AAI USAGE REFERENCE NUMBER: LOCATION ADDRESS: FEDERAL WAY, KING CO., WA 16 NW-02 LINE 1 END PROJECT ,j I-5 MP 143.00 W 543+03.95 Narh 15 ND CONSTRUCTION S 3A SR 18 MP 0.82 ES-01 LINE EW-01 74+50.00 rL.. LINE .. WE-WE74+80.46 .......................................... ... .. ... .Lyre .. ........ LW LINE NS-OS LINE BEGIN NS-03 LINE CONSTRUCTION 1-5 MP 141.28 5 3t�-'M ST LW 464+00.00 LE 463+74.31 28 a 0 150 300 SCALE IN FEET PURPOSE: IMPROVE SAFETY AND INCREASE INTERCHANGE CAPACITY DATUM: NADV BB LATITUDE: LONGITUDE: SR 1611SR 16 INTERCHANGE IMPROVEMENTS NEAR: FEDERAL WAY, KING CO., WA DATE: 2/9i09 SHEET 1 OF 25 T. 21N. R.4E. W.M. 0 cao 1200 SCALE IN FEET _ r I 13 +I `I 12 . I +I 1 f .le + � � l �. 1s l _ SHEET INDEX REF.SHEET SHEET TYPE 1 COVER SHEET ' • 7 2 INDEX SHEET Yr + 3 PLAN VIEW i ; 4 PLAN VIEW i I 8 5 PLAN VIEW 6 PLAN VIEW " ' 7 PLAN VIEW 8 PLAN VIEW 5 9 PLAN VIEW 10 PLAN VIEW ( •' 11 PLAN VIEW ,!- a 12 PLAN VIEW 13 PLAN VIEW 14 PLAN VIEW 3 PLAN VIEW WETLAND INDEX 16 CROSS SECTION <<. DETAIL DRAWINGS REF. SHEET 17 CROSS SECTION 18 CROSS SECTION '. WETLAND AB 3, 4, 5 19 CROSS SECTION WETLAND K 16 S. 28. T. 21 N. R. 4E. W.M. MATCH TO SHEET 4 I 0.01 ACRES OF PERMANENT STREAM SUFFER DISTURBANCE A 1 Ut1 w EXISTING EDGE- 0.02 ACRES OF TEMPORARY OF PAVEMENT,, I STREW BUFFER DISTURBANCE �• RETAINING CFI WALL _� FUTURE EDGE f i 1 j (NAVD) B8 Cj? • � OF PAVEMENT 1 ffff I{� ah " EXISTING EDGE OF PAVEMENT `' PROPOSED / STORMWATER POND EXPANSION PROPOSED EOGE I. 2 i OF ►L! Z PAVEMENT rll : 1J LIMBS OF GRADING t PROPOSED ' V FOR STORMWATER �� .•1 • POND EXPANSION 40 ► �' I t g ` i� /► 1 to '% 1 qj TRIBUTARY I / ti, �" ► Ij WETLAND AB n I +, 1 / 1 x DIRECTION OF l FLOW ,f� ► s} I BARRIER \ ,'p BEGIN PROJECT 1 0.09 ACRES OF PERMANENT 1 4WETIAHD BUFFER M$TURBAHCE MACH IS ALSO 0.06 ACRES 1� °' OF PERMANENT STREAM I-5 MP 141.28 - - i J 1 BUFFET) LW 464+00.00 w \ '` ------------- • __________________' AA '0.. ACRES OF PERMANENT LE 463+74.31 .STREAM BUFFER DISTURBANCE �+ '• \ 0 60 '100 SCALE IN FEET PLAN LEGEND & SUMMARY OF IMPACTS EXISTING ENT DGE PERMANENT AETLAHD SUFFM IMPACT mm TEMPORARY WETLAND BUFFER IMPACT :a �' I TEMPORARY WETLAND "-----� IMPACT 465 DITCH IMPACT NENT WETLAND WETLAND ® ® BUFFER IMPACT STREAM TEMPORARY PERMANENT STREAM BUFFER IMPACT EF- IMPACTENT STREAM - LIMIT OF CUT OR FILL JjJf] PROPOSED EDGE OF �•,•- - - ALIGNMENT & STATION RIGHT OF WAY WETLAND BOUNDARY • ' STREAM BUFFER ......••. WETLAND BUFFER PAVEMENT WETIANP NUMBER WETLAND AB WETLAND K WETLAND M WETLAND N WETLAND P WETLAND U WETLAND CATEGORY fECOLDGYI I11 III 11 nc II III VVETLANO SIZE 042 ACRE 013 ACRE 11B ACRE 020 ACRE 191 ACRE 013 ACRE PERMANENT WETLAND IMPACT 0 ACRE 0 ACRE 003 ACRE 020 ACRE 0 ACRE 0 ACRE TEMPORARY VYETLANO TOTAL V.ETLANO IMPACT BUFFER IMPACT 0 ACRE 023 ACRE 0 ACRE 0 ACRE 002 ACRE 056 ACRE 0 ACRE 0 ACRE 0 ACRE 012 ACRE 0 ACRE 014 ACRE TEMPORARY BUFFER IMPACT 014 ACRE 001 ACRE 017 ACRE 0 ACRE 024 ACRE 004 ACRE TOTAL TOTAL STREAM TOTAL TEMPORARY STREAM STREAM IMPACT BUFFER IMPACT STREAM BUFFER IMPACT 0016A 012 ACRE 444 ACRE 12B ACRE 0016 000 ACRE 020 ACRE 000 ACRE USAGE REFERENCE NUMBER: a S. 28. T. 21N. R. 4E. W.M. MATCH TO SHEET 5 DATUM + EXISTING EDGE f I OF PAVEMENT (NAND) 88 I - PROPOSED EDGE OF PAVEMENT l ft$7AINIHG '1 i' + J VUT URE EOGE OF OF PAVEMENTENT .r EXISTIRD EDGE , 2 +r / OF PAVEMENT 1 ' FUTURE EDGE OF PAVEMENT 40 lu Zy 4 ' y O TRIBUTARY �'+ • 0016A i W DIRECTION OF FLOW rr � rr +r 014 ACRES OF TEMPORARY i If WE7LANO BUFFER DISTIIRBAKCE ^ + d (NTRCN iS ALS0 014 ACRES OF TgLNCTHEVIhI BUFFER DISTUPAIA +�r + i+ p 0.10 ACRES OF PERMANENT WETLAND BUFFER DISTURBANCE �i+ 0 (WFBCH 1S ALSO G10 ACRES OF RETAINING PERMANENT STREAM BUFFER WALL DISTURBANCE] VIETLAND AB j 0-05 ACRES OF TEMPORARY STREAM BUFFER DISTURBANCE 0-02 ACRES OF'PERIJANENT STREAM BUFFER DISTURBANCE r+ 0� 0 50 100 I 1 SCALE IN FEET 1 _ MATCH TO SHEET 3 PLAN LEGEND & SUMMARY OF IMPACTS - - - - - - - - - EXISTING EDGE OF PAVEMENT PERMANENT WETLAND ® TEMPORARY WETLAND TEMPORARY WE LAND 7 DITCH BUFFER IMPACT BUFFER IMPACT IMPACT 465 PERMANENT WETLAND ® BUFFER IMPACT IMPACT STREAM ALIGNMENT B STATION PERMANENT STREAM RIGHT OF WAY WETLAND ® BUFFER IMPACT LIMIT OF CUT OR FILL +---~ PROPOSED EDGE OF WETLAND BOUNDARY • • • STREAM BUFFER ••••'• " ' WETLAND BUFFER PAVEMENT • PERLIANEN7 TEMPORARY WETLAND TOTAL WETLAND TEMPORARY WETL.A7'TO WETLI4N0 CATEGORY WETLAND VyETLAND IMPACT IMPACT BUFFER IMPACT BUFFER Ib1PACT NVMe1FlLECOLOOY3 SIZE WETLAND AB 14 042 ACRE 0 ACRE 0 ACRE 023 ACRE 014 ACRE WETLAND K 111 AC 013 RE 0 ACRE 0 ACRE 0 ACRE 001 ACRE WETLAND M II 115 ACRE 003 ACRE 0.02 ACRE 056 ACRE 017 ACRE WETLAND N III 020 ACRE 020 ACRE 0 ACRE 0 ACRE 0 ACRE ]I 1 91 ACRE 0 ACRE 0 ACRE 0.12 ACRE 024 ACRE WETLAND P 014 ACRE 004 ACRE WETLAND U I0 0.13 ACRE 0 ACRE 0 ACRE TOTAL TOTAL STREAM TOTAL TEMPORARY STREAM STREAM IMPACT BUFFER IMPACT STREAM BUFFER IMPACT 0018A 012 ACRE 444 ACRE 128 ACRE 0016 000 ACREJ 020 ACRE 000 ACRE REFMItENCE TEMPORARY STREAM 1 SUFFER IMPACT FOR STREAM CONSTRUCTION 1 RELOCATE STREAM PROPOSED CULVERT RELOCATED STREAM - RELOCATED STREAM BUFFER S. WALL 28. T. 21 N. R. 4E. W.M. MATCH TO SHEET 6 v 0O I • vT e RETAINING i WALL 0 18 ACRES OF TEMPORARY STREAM BUFFER DLSTIIRBANCE 134 ACRES DF PERMANENT ^S h STREAM BUFFER 918'fI1RA1WCE STRF-ku CHANNEL TO r"''•^h %f' EDGE BE ABANDONED ^-^•-.. EXSTING /or PAVEN NT r I � W r Ell W J 006 ACRES OF PERMANENT STREAM DISTURBANCE PROPOSED EDGE • OF PAVEMENT EXISTING CULVERT PROPOSED CULVERT EXTENSION - _ -_� FUTURE EDGE L. ^J OF PAVEMENT • Nr RETAINING ' `� WALL _ J RETAINING I `EXISTING EDGE f ;/ OF PAVEMENT FJ !y FOURE EDGEOF PAVEMENT 007 ACRES OF PEWHANENT O �•`� WETLAND BUFF€R OSTURBANCE N ,•r (WHICH IS ALSO 0.07 ACRES OF D A UM W • rC `• DST RBANCE)MANENT TREAM BUFFER , CN u r` a (NAVD) 88 2 rL r MATCH TO SHEET 4 PLAN PERMANENT WETLAND BUFFER IMPACT PERMANENT WETLAND IMPACT WETLAND ' • • • • STREAM BUFFER WETLANO WETLAND CATEGORS NUMBER IECOLODYI WETLAND AB III WETLAND K III WETLAND M II WETLAND N III WEfLANO P II WETLAND U III ti DIRECTION OF FLOW ter- TRIBUTARY 0016A r WETLAND AS LEGEND & SUMMARY OF IMPACTS EXISTING EDGE OF PAVEMENT ®TEMPORARY WETLAND BUFFER IMPACT TEMPORARY WETLAND IMPACT 465 DITCH TEMPORARY STREAM BUFFER IMPACT �. �. PERMANENT STREAM IMPACT ALIGNMENT & STATION ® PERMANENT STREAM OF CUT OR FILL OF WAY .. . • .. BUFFER IMPACT WETLAND BUFFER PROPOSED EDGE OF PRO PAVEMENT _ _ _ „• WEND BOUNDARY WETLAND WETUWD 3�2E PERMANENT WIETLAND IMP4C' TEMPORARY VTTLAND IMPACT TOTAL WETLAND SUFF'A. IMPACT TEMPORARY SUFFER IMPACT 0.42 ACRE 0 ACRE 0 ACRE 023 ACRE 014 ACRE 71.3 ACRE 0 ACRE 0 ACRE 0 ACRE 001 ACRE 1.16 ACRE 003 ACRE 002 ACRE 056 ACRE 017 ACRE 020 ACRE 020 ACRE 0 ACRE 0 ACRE 0 ACRE 191 ACRE 0 ACRE 0 ACRE 012 ACRE 024 ACRE 013 ACRE 0 ACRE 0 ACRE 014 ACRE 004 ACRE STREAM TOTAL TOTAL STREAM TOTAL TEMPORARY STREAM IMPACT BUFFER IMPACT STREAM BUFFER IMPACT 0018A 012 ACRE 444 ACRE 128 ACRE 0016 000 ACRE 020 ACRE 000 ACRE S. 28. T. 21 N. R. 4E. W.M. MATCH TO SHEET 7 FUTURE EDGE OF PAVEMENT ✓;[l rr EXISTING EDGE '• � U � OF PAVEMENT 1 3 In W PROPOSED EDGE �. $ • OF PAVEMENT • RETAINING WALL 3 U w w h TRIBUTARY 001eA � FW DIRECTION OF FLOW G F.� DATUM WETLAND D • f� co I a' TEMPORARY STREAM BUFFER IMPACT FOR 1 Z STREAM CONSTRUCTION (NAND) 88 •063 ACRES �OF PERMANENT FUTURE EDGE •.. STREAM BUFFER MSTURCE OF PAVEMENT BINI i• r 021 ACRES OF TEMPORARY �r EXISTING EDGE STREAM BUFFER DISTURBANCE OF PAVEMENT • � +� 0.02 ACRES OF PERMANENT 0 • • STSCALE 50 IN FEET 100 RFIMS DISTURBANCE MATCH TO SHEET 5 PLAN LEGEND & SUMMARY OF IMPACTS --------- OFISPTII`NGGMEDNGE BUFFER PERMANENT WETLAND ® TEM ERARY V T LAND (= I— IMPACTTEMPORARY VVETLAND > DITCH 465 'k • .' IPERMANENT WETLAND Gy�1l TEMPORARY STREAM�] IMPA ERMANENT STREAM - ALIGNMENT & STATION MPACT BIJPPERMANENT STREAM-on--ru- LIMIT OF CUT OR FILL 7717i7i%7 RIGHT OF WAY WETLAND � BUFFER IMPACT PROPOSED EDGE OF _ _ - - - WETLAND BOUNDARY • • • STREAM BUFFER WETLAND BUFFER PAVEMENT WETLAND WEMND CATEGORY WETLAND PERMANENT TEMPORARY WE7LAND TOTAL YVETLAHO TEMPORARY NUMBER ECOLOGII SIZE WETLAND IMPACT IMPACT BUFFER IMPACT SUFFER IMPACT WETLAND AB 01 042 ACRE 0 ACRE 0 ACRE 0.23 ACRE 0.14 ACRE WETLAND K Tfl 013 ACRE 0 ACRE 0 ACRE 0 ACRE 001 ACRE WETLAND M 11 116 ACRE 003 ACRE Q02 ACRE 055 ACRE 017 ACRE WETLAND N III 020 ACRE 020 ACRE 0 ACRE 0 ACRE 0 ACRE WETLAND P 0 1.81 ACRE 0 ACRE 0 ACRE 0.12 ACRE 024 ACRE WETLAND U III 013 ACRE 0 ACRE 0 ACRE 0.14 ACRE 004 ACRE Rt htNtrv(.t NUMBER: SR 16LSR 18 STREAM TOTAL STREAM IMPACT TOTAL STREAM BUFFER IMPACT TOTAL TEMPORARY STREAM BUFFER IMPACT INTERCHANGE IMPROVEMENTS aF�l(^.A� APPLICANT BY: DEPTH OFTON STATE TRANSPORTATION 0016A 012 ACRE 444 ACRE 120 ACRE E N\ 1 N E l i< {■V�{ LOCATION ADDRESS: FEDERAL WAY, KING CO., WA 0016 oap ACRE ago ACRE oao ACRE USAGE REFERENCE NUMSERt ' TUM FUTURE EDGE OF PAVEMENT PROPOSED EDGE OF PAVEMENT (NAND) 88 RETAINING 0.19 ACRES OF TEMPORARY STFIEAM BUFFER DISTURBANCE ' • DIRECTION OF FLOW ' TRIBUTARY 0016A PERMANENT WETLAND BUFFER IMPACT PERMANENT WETLAND IMPACT WETLAND STREAM BUFFER WETLAND AB III VVETLAND K n1 WETLAND M II WETLAND N tll WETLAND P B WETLAND U ✓<I S. 28. T. 21N. R. 4E. W.M. MATCH TO SHEET 8 MATCH TO SHEET 6 PLAN LEGEND & SUMMARY OF -IMPACTS TEMPORARY WETLAND JI:. �.(I� TEMPORARY WETLAND BUFFER IMPACT IMPACT TEMPORARY STREAM PERMANENT STREAM BUFFER IMPACT IMPACT PERMANENT STREAM LIMIT OF CUT OR FILL BUFFER IMPACT PROPOSED EDGE OF ......... WETLAND BUFFER PAVEMENT V7TLANLI PERMANENT TEMPORARY YVETUND T( 512E WETLAD IMPACT 0�1PACY 12 ACRE 0 ACRE 0 ACRE 013 ACRE 0 ACRE 0 ACRE 1.16 ACRE 0.03 ACRE 002 ACRE 020 ACRE 020 ACRE 0 ACRE 191 ACRE 0 ACRE 0 ACRE 013 ACRE 0 ACRE 0 ACRE TOTAL TOTAL STREAM TOTAL TEMPORARY STREAM STREAM IMPACT BUFFER IMPACT STREAM BUFFER IMPACT 0016A 012 ACRE 444 ACRE 128 ACRE 0016 000 ACRE 020 ACRE 000 ACRE USAGE REFERENCE NUMBER: EXISTING RAMP TO BE REMOVED F 4 0 50 100 SCALE IN FEET - - - - • - - - - EXISTING EDGE OF PAVEMENT DITCH 465 - ALIGNMENT & STATION RIGHT OF WAY WETLAND BOUNDARY BUFFER IMPACT 0.23 ACRE 0 ACRE 0.56 ACRE 0 ACRE 0.12 ACRE 014 ACRE 0.14 ACRE 001 ACRE 0.1T ACRE 0 ACRE 0.24 ACRE 004 ACRE 0.15 ACRES OF STREAM BUFFER 1 A 002 ACRES OF TEMPORARY STREAM BUFFER DISTURBANCE • yw PROPOSED CULVERT EXTENSION I TRIBUTARY •0016A S. 28. T. 21 N. R. 4E. W.M. MATCH TO SHEET 9 MATCH TO SHEET 7 PLAN FUTURE EDGE OF PAVEMENT r' ATum (NAVD) 0 50 100 SCALE IN FEET LEGEND & SUMMARY OF IMPACTS PERMANENT WETLAND BUFFER IMPACT TEMPSUFFORARY VIVICTLAND ��- I_I I _ _ _ _ _ _ _ _ _ EXISTING EDGE OF PAVEMENT ORARY WETLAND Li � DITCH PERMANENT WETLAND IMPACT BE IMPACT BUFIFER IMPACTREAM ® PERMANENT STREAM IMPACT - ALIGNMENT & STATION ,W. '� WETLAND � PERMANENT STREAM BUFFER IMPACT -wl--m.- LIMIT CUT OR FILL 7777TT777 RIGHT OF WAY • ' ' • STREAM BUFFER ......••• WETLAND BUFFER PROPOSED EDGE OF PAVEMENT - - - - - WETLAND BOUNDARY V''FT�� Nl11ABER WETLAND CATEGORY (ECOLOGY) VWETLMPO Stu PEAMANENf WE'iLAND IMPACT TEMPORARY VYE'ILANO TOTAL riETLAl10 TEMPORARY WETLAND AS III 0.42 ACRE 0 IMPACT BUFFER IMPACT BUFFER IMPACT WETLAND K III 0.13 ACRE ACRE 0 ACRE 023 ACRE 014 ACRE WETLAND M 11 116 ACRE 0 ACRE 0 ACRE 0 ACRE 0 01 ACRE WETLAND N III 003 ACRE 0.02 ACRE 056 ACRE 017 ACRE 020 ACRE 020 ACRE 0 ACRE 0 ACRE 0 ACRE WETLAND P !I 191 ACRE 0 ACRE 0 ACRE 012 ACRE 024 ACRE WETLAND U ill 0.13 ACRE 0 ACRE 0 ACRE 014 ACRE 004 ACRE STREAM TOTAL TOTAL STREAMBn STREAM IMPACT BUFFER IMPACT0016A 012 ACRE 444 ACRE0016 USAGE REFERENCE NUMBER: S. 28. T. 21N. R. 4E. W.M. MATCH TO SHEET 10 I I , 0.00 ACRES OF TEMPORARY W ry i I TRIBUTARY 0016A STREAM BUFFER ¢ Z 1 1 ((U DISTURBANCE (4 1� 1 • PROPOSED CULVERT ~ !} h 1 ' , EXTENSION DIRECTION LOW 4�4� 1w I � r•EXISTING RAMP TO BE REMOVED 0.02 ACRES OF PERMANENT STREAM � DISTURBANCE S FUTURE EDGE •`, OF PAVEMENT l 9 • 0.22 ACM OF PERNANEHY 1 •, Ha; • ...-• _ ... f .•��.'r'STREAM BUFFER ry- I !'f NA") 88 2 _ DISTURBANCE r j j _ _---- - - - - _ -rZ EW 61 LINE j f r EWUNO RAMP TO EE REPLACED ,'i E711STWG OF PA ' r a �7;WE=-OILINE 1' +• 0.3E ACRES OF PERMANENT STREAM; BLUFFER CiSTURSANCE .. _�_,...... .rn ;irl r 11+1f } • ` r,.• �. � DIRECTION •+ + � r r 7 1 r r r + OF FLOW 1 TRIBUTARY 0016A EXISTIN EDGE r �- WETLAND U OF PAY MENT �' 15 lB7� —71 XS I'OF PA MENr' y 1 -0.03 ACRES OF TEMPORARY O I 9 WETLANO BUFFER DISTURBANCE 1 MAIICH IS ALSO 003 ACRES OF I +n ± TEMPORARY STREAM BUFFER+' / p DISTURBANCE) y I O p 0.10 ACRES OF PER ENT `! M LAND SUFFER OIST"ANCE ; / p 50 100 I� "UCH IS ALSO 010 ACRES OF PERMANENT STREAM BUFFER% SCALE IN FEET DISTURBANCE? �' J .1 MATCH TO SHEET 8 —LNU LEGEND & SUMMARY OF IMPACTS - - - - - - - EXISPTII `NGGMEDGE PERMANENT WETLAND Em TEMPORARY WETLAND I TEMPORARY WETLAND L-—� DITCH BUFFER IMPACT BUFFER IMPACT IMPACT 466 � PERMANENT WETLAND ® TEMPORARY STREAM IMPACT PERMANENT STREAM ® IMPACT ALIGNMENT & STATION E: ]OnC.rn�n y� IMPACT WETLAND ® BUFFER PERMANENT STREAM BUFFER IMPACT •�.--..+— LIMIT OF CUT OR FILL Tli77T177 RIGHT OF WAY PROPOSED EDGE OF _ ,• _ _ _ WETLAND BOUNDARY • STREAM BUFFER ......... WETLAN D BUFFER PAVEMENT WETLAND WETLAND CATEGORY WETLAND PERMANENT WETLAND IMPACT TEMPORARY WETLAt+O IMPACY TOTAL WETS,AT+D BUFFER IMPACT TEMPORARY BVFFER IMPACT ULN.IBER (ECOLOGY! S17.E 0 ACRE 023 ACRE 014 ACRE WETLAND AB III 0.42 ACRE 0 ACRE WETLAND K III 0.13 ACRE 0 ACRE 0 ACRE 0 ACRE 0ACRE LA WETLAND M 11 1.16 ACRE 003 ACRE 0.02 ACRE O58 ACRE 017 ACRE XI 020 ACRE 020 ACRE 0 ACRE 0 ACRE 0 ACRE WETLAND N 191 ACRE 0 ACRE 0 ACRE 0.12 ACRE 024 ACRE WETLAND P II 0 ACRE 0 ACRE 0.14 ACRE 004 ACRE WEfLANO U 01 013 ACRE 70TAL TOTAL STREAM TOTAL TEMPORARY STREAM STREAM IMPACT BUFFER IMPACT :STREAM BUFFER IMPACT 0016A 012 ACRE 1 444 ACRE 128 ACRE 001g 000 ACRE 020 ACRE 000 ACRE USAGE REFERENCE iFUMSER: S. 28. T. 21 N. R. 4E. W.M. TRIBUTARY 0016A OA U it FUTURE EDGE OF PAVEMENT (NAND) 88 i 1+' /- li+11 14) r.J "•• f EXISTFW EDGE �� - -� EXISTING EDGE./ OF ENT 1 PAV&I r OF PA ENT � 1 6 • li �♦ rr w'r '•• +� 'I � 1 C +'1 • _- I I I i_ • Q' 1 / 1 ?1 • W V Tq x ,' 15 ' 11 n• I • • /� ynfnn • ^M � J Z = EXISTING RAMP '' • 'I '1 TO BE REMOVED 1 p T Z I F' + + RETAINING WALL • -.. __ - II iSE -`�� $ U 11 � _,_. •-- _ --.._ .• 3 U it _ Q J 1k_ ju ' '+ a FUTURE EDGE OF PAVEMENT RESTORED STREAM BUFFER ,` li •EXISTING CULVERTS • TO BE REMOVED • • i� 03 ACRES • •TF3APORARY Ilr ' STREAM BUFFER DISTURBANCE J WETLAND T �• A .YA F I I. W ACRES OF 0AC STREAM SUFFER DISTURBANCE I f 1 0 50 100 I SCALE IN FEET DIRECTION OF FLOW MATCH TO SHEET 9 PLAN LEGEND & SUMMARY OF IMPACTS _ _ _ _ .... - EXI TINGPAVEMENTE PERMANENT WETLAND TEMPORARY WETLAND TEMPORARY WETLAND I 7 DITCH BUFFER IMPACT SUFFER IMPACT IMPACT 465 PERMANENT WETLAND ecv TEMPORARY STREAM PST %S- PERMANENT BTREAM L^YjTI. IMPACT ALIGNMENT & STATION IMPACT WETLAND BUFFER IMPACT BUFFER PERMANENT EMPACT� LIMIT OF CUT OR FILL TTirinn RIGHT OF WAY PROPOSED EDGE OF � _ _ _ � WETLAND BOUNDARY • • • • • STREAM BUFFER ......••• WETLAND BUFFER PAVEMENT SNETIJ�ND 1NELLANO CATEGORY Y.ETL+INO PERIANENT TEMPORARY WETLANO TOTAL AETLIND IMPACT BUFFER IMPACT TEMPORARY BUFFER IMPACT NUMBER IECOLOOYI SIZE WETLAND IMPACT 014 ACRE WETLAND AB 01 042 ACRE 0 ACRE 0 ACRE 023 ACRE WETLAND K lil 0.13 ACRE 0 ACRE 0 ACRE 0 ACRE 001 ACRE WETLAND M Il 1.16 ACRE 003 ACRE 002 ACRE 056 ACRE 0,17 ACRE III 020 ACRE 020 ACRE 0 ACRE 0 ACRE 0 ACRE WETLAND N 1.91 ACRE 0 ACRE 0 ACRE 012 ACRE 024 ACRE WETLAND P WETLAND U II III 013 ACRE 0 ACRE 0 ACRE 014 ACRE 004 ACRE STREAM TOTAL TOTAL STREAM TOTAL TEMPORARY STREAM IMPACT BUFFER IMPACT ;rREAM BUFFER IMPACT 0016A 012 ACRE 444 ACRE 120 ACRE 0010 000 ACRE 020 ACRE 000 ACRE USAGE REFERENCE NUMBER: I I VA.. " — S. 28. T. 21 N. R. 4E. W-M. MATCH TO SHEET 12 ,FUIURE SOLE - i pF PAVEMENT � ' + i + DATUM FUTUREEDGE OF PAVEMENT I (NAND) 88 024 ACRES OF TEMPORARY yy1 STREAM BUFFER 015TURB+WCE fr us •• WETLAND U-1 WETLAND G • DIRECTION OF FLOW 1 TRIBUTARY 0011 gB 100 . I + rJ SCALE IN FEET I � a' p LEGEND & SUMMARY OF IMPACTS EXISTING EDGE OF PAVEMENT PERMANENT WETLAND BUFFER IMPACT TEMPORARY WETLAND BUFFER IMPACT I— TEMPORARY WETLAND �— IMPACT _7 465 DITCH PERMANENT WETLAND IMPACT WETLAND C]11'�11511`�BUFFER TEMPERA STREAM PERMANENT STREAM BUFFER IMPACT �{ L IMPACT ENT STREAM an LIMIT OF CUT OR FILL PROPOSED EDGE OF T%7777T1% _ _ — _ _ ALIGNMENT & STATION RIGHT OF WAY WETLAND BOUNDARY • • • • • STREAM BUFFER WETLIINO CATEGORY LEMOGY1 01 91 II 01 II 01 •••••• ..' riETIJWR sjZE, 0.42 ACRE 013 ACRE 1.16 ACRE 020 ACRE 1.91 ACRE 0.13 ACRE WETLAND BUFFER PERMANENT YmtLAND IMPACT 0 ACRE 0 ACRE 003 ACRE 020 ACRE 0 ACRE 0 ACRE PAVEMENT TEMPORARY 4V-TLRNO TOTAL WETLAND IMPACT BUFFER IMPACT 0 ACRE 023 ACRE 0 ACRE 0 ACRE 002 ACRE Q56 ACRE 0 ACRE 0 ACRE 0 ACRE 012 ACRE 0 ACRE 014 ACRE TEMPORARY BUFFER iTAPACY 014 ACRE 001 ACRE 017 ACRE 0 ACRE 0ACRE 004 4 ACRE VYETSAHO NVMBER WETLAND AB WETLAND K WETLAND M WETLAND N WETLAND P WETLAND U TOTAL TOTAL STREAM TOTAL TEMPORARY STREAM STREAM IMPACT BUFFER IMPACT STREAM BUFFER IMPACT 0010A 012 ACRE 444 ACRE 128 ACRE 0016 000 ACRE 020 ACRE 000 ACRE NUMBER: asrsn 3aOV 000 38DV OZ0 3HOV 000 1 SL00 3aoV ozL 3aOV VVV 3NOV Z10 tlB100 13VdWl a3ddns m3ws ANtlaodw3l iV101 1DVdwl a33dne iW3als IYlol lOVdWI WV3a1S 1V101 Wtl3a1S 3HOV V00 g 380V 010 380V 0 380V 0 3NOV EVO 111 In ONV113M 3HOV VZO 3aotl ZLO 3aotl 0 380V 0 3aDV 16L 11 d ONV113M 3aov 0 380V 0 380V oZ0 3a3V OZO VI! N ONV113M 3a0tl 0 3aOV BSO 380V zoo 3NOV E00 3aDV Bl'L O W ONVURM 3aOV LLO 3HOV 0 3aDtl 0 3a0tl El0 IN H ONV'lL3M 380V L00 3aotl 0 31dDtl 0 380V ZV0 IN BV ONVILBM 383V VLO 3aOV EZO 380V 0 3ZIs US7OlOD3} a3BY[nN LDtldWI il3djn9 Aiowi is W3L 17YdWl a33dn8 ONYlL3hV N101 1'3tldwL OHV313M AatlaOdW31 :OVdwl ONVILW LN3NYWa3d ONYIi351 Aa0931V0 ONVI!-3h7 OHVuyd` 1N31`43AW mmuns ONVIOM ••••••••• a3djnB WV381S . . AaVONnOB ONV113M — ^ — — ' AO 3003 03SOdOad 1DtldWI bialine 1f1 llld a0 D d0 llWn—,w--uo- WV381S 1N3NVWW3dtlWH3d ® ONV113M AVM d0 11-1Ola • 1OVdW1 1OW" aadene ® 1DVdV11 e : NOLLVIS 8 I.N3ANEMW �� WV3a1S 1N3NVWa3d nva AlMaPdW31 ONV113M 1N3NVwa3d = lOtldWl 1DVaWl a3diflB — 0Ntl113M AHVHDdw31 1DtldWl a3ddnB ONtlILIM 1N3NVWa3d HO11O ONVIL3M ANWOdW31 1N3WaAVd j0 3003 ONIISIX3 - - - - - - • -- SloHdWl d5 ),*dVWil nS 'S ❑N3031 KTFA 66 133HS Ol HO1VW $ 3DNYBanlsln a3j�nB lYY3als � ' 1333 NI 31— ' 1H3HVWa3d 3O 53aDtl L0-B 3DNYBfn:ufla 001 OS 0 FaYuodK3LJO S3aOY LOD ip 1N3VMVd d0 . 1N3W3h1d jO� 3003 ONLLSIX3 - 3003 ONILSOC3 , ee (OAVN) i w ; f �1N3W3AVd j0' , - •I 3D03 0350d0#d � � I' 14 3 � '� �S- `� i • . ' 0 1 ••. m CID + I rrl I � • / NYBan18L0 11k d ONVIL3N1 a3djn9 WV32L1,s-I1N3NYwa3d 1 i0 53aDY BOB OSW SL HOIHM} 3DNVBanLSM a33dns ONVIL3M 1 1 1N 3/1YWkl3d :�D s3wv 600 a3d9PI0 wrilll5 AHV�aOdW3l I 30 S3aDY 8O'O OsIY SL HOINMI 35I(YBilnlsltl a331ns.0NV11316 1� �nvavdW31 d0 s3aDr u o 1 �, � 1 r LNBW3AVd d0 1 f f MOI.4 d0 3003 3arunl 1 F i + NOlL5+1illaf CL 133HS 01 H31VW WM '3V 'H 'N I Z 'l '8Z 'S J J S. 28. T. 21 N. R. 4E. W.M. TRIBUTARY O1BA DIRECTION 1 OF FLOW • � r WETLANG•P 1 y r y 1 1 y y / Y • y ' / I 011 ACRES - OF TEMPORARY WER.4NO BUFFER+ DISTURBANCE 1 1 a Y i � 1 1 f"ll"PTEMPowy [ WEN-14Np BUFFER I - DISTURBAN'E I• PERMANENT WETLAND BUFFER IMPACT •`may• PERMANENT WETLAND IMPACT WETLAND ' • • • STREAM BUFFER NUMBER WETLAND AB WETLAND K WETLAND M WETLAND N WETLAND P WETLAND U � r r r r r � - rp � g 0113 ACRES OF PERMANENT I 1M1ETLAN0 BUFFER DISTURBANCE PROPOSED OF PAVEAIEHT I Ir DUSTING EDGE Ir/ OF PAVEMENT i r /l r `POSTING EDOE Ir /I !/ OF PAVEMENT . / .dco 10 I I I DA iIJM rl FUTURE EDGE � rr QP PAVEMENT U fVn rr ;A 41 I (NAVD) 88 1 r 1 r , r rII r �7 rr ` 0 50 100 iR SCALE IN FEET MATCH TO SHEET 12 p LEGEND & SUMMARY OF IMPACTS EXISTING EDGE EM TEMPORARY WETLAND TEMPORARY WETLAND OF PAVEMENT . DITCH omTEMPORARY BUFFER IMPACT STREAM IMPACT PERMANENT STREAM 465 BUFFER IMPACT .. 3-.{ IMPACT ALIGNMENT & STATION PERMANENT STREAM BUFFER IMPACT LIMIT OF CUT OR FILL? RIGHT OF WAY ......••• WETLAND BUFFER PROPOSED EDGE OF PAVEMENT _ _ _ WETLAND BOUNDARY TIANID I PLRMAKENi FEMPORARY WEI{ VLuIiTJ ryjg TOTAL WETLAND TEMPORARY WT'TW1D LMPAC7 IMPACT BUFFER IMPACT BUFFER IMPACT 91 0.42 ACRE 0 ACRE 0 ACRE 0.23 ACRE 0.14 ACRE AI 0.13 ACRE 0 ACRE 0 ACRE 0 ACRE 001 ACRE B 1.16 ACRE 003 ACRE 0-02 ACRE 0.56 ACRE 017 ACRE 0i 0.20 ACRE 020 ACRE 0 ACRE 0 ACRE 0 ACRE tl 191 ACRE 0 ACRE 0 12 ACRE 024 ACRE ACRE 0 NI U13 ACRE 0 ACRE 0 ACRE 014 ACRE 004 ACRE STREAM TOTAL FM TOTAL TEMPORARY STREAM IMPACT STREAM BUFFER IMPACT 0016A 012 ACRE 12B ACRE 0018 000 ACRE I 0.00 ACRE USAGE REFERENCE NUMBER: S. 28. T. 21 N. R. 4E. W.M. MATCH TO SHEET 15 M / / � y 001 ACRES OF TEMPORARY WETLAND BUFFER DISTURBANCE WETLAND 0.06 ACRES OF TEMPORARY RETAINING WETLAND BUFFER WALL DISTURBANCE S{�. .. EXISTINd EDGE �}�' , •�'a OF PAVEMENT A ,1 0.03 ACRES OF PERMANE n d' PROPOSED EDGE �Y1'ERATIO 016T�CE „ - OF PAVEMENT - 002 ACRES OF TEMPORARY n WETLAND DISTURBANCE 0,19 ACRES OF PERMANENT WETLAND BUFFER DISTURBANCE,' Rr FUTURE EDGE ,y FUTURE EDGE OF PAVEMENT OF PAVEMENT 3 C� 'IT 11 PROPOSED STORMWATER POND LIMITS OF GRADING FOR �� II PROPOSED STORMWATER POND y„I11 �15 • ' . �� w TRIBUTARY 0016 �1 gDIRECTION OF FLOW ACRES OF PERMANENT AM BUFFER DISTURBANCE EDGE �OATLIM (NAVD) 88 p 50 100 SCALE IN FEET ELAM LFC7END & SUMMARY OF IMPACTS - - -- - - - - EXISTING EDGE OF PAVEMENT PERMANENT WETLAND BUFFER IMPACT �.,w is TEMPORARY WETLAND BUFFER WACT I—_ TEMPORARY WETLAND 465 DITCH PERMANENT WETLAND IMPACT WETLAND b}k ]7]LS2 TEMPORARY STREAM BUFFER IMPACT PERMANENT STREAM BUFFER IMPACT PERMANENT STREAM . IMPACT _ -an -nu LIMIT CUT OR FILL CUT PROPOSS EDGE OF �fjjjJJ7 _ _ «. ALIGNMENT & STATION RIGHT OF WAY WETLAND BOUNDARY � • • • • STREAM BUFFER ••••••... WETLAND BUFFER PAVEMENT YJE7LANp NUMBER WETLAND AB WETLAND K WETLAND M WETLAND N WETLAND P WETLAND U WEi1AH0 CATEGORY fECOLOGYy 111 III II III II 61 Y,E7LAN6 SIZE 0.42 ACRE 013 ACRE 1.16 ACRE 020 ACRE 1.91 ACRE 013 ACRE PERMANENT WETLAND IMPACT 0 ACRE 0 ACRE 003 ACRE 020 ACRE 0 ACRE 0 ACRE TEMPORARY VYfTLAND IMPACT 0 ACRE 0 ACRE 002 ACRE 0 ACRE 0 ACRE 0 ACRE TOTAL WETLAND BUFFER IMPACT 0.23 ACRE 0 ACRE Q56 ACRE 0 ACRE 012 ACRE 0.14 ACRE TEMPORARY BUFFER IMPACT 0ACRE 001 ACRE 0.17 ACRE 0 ACRE 024 ACRE 004 ACRE TOTAL TOTAL STREAM TOTAL TEMPORARY STREAM STREAM IMPACT BUFFER IMPACT STREAM BUFFER IMPACT 0016A 012 ACRE ,," ACRE 120 ACRE 0016 000 ACRE 020 ACRE 000 ACRE REFERENCE I S. 28. T. 21N. R. 4E. W.M. ATLIu (NAVD) 88 INDIRECT WETLAND IMPACTS OF 1,306 SO FT Y� IMPACTS MITIGATED AS DIRECT DUE TO ANTICIPATED LOSS OF WETLAND FUNCTIONS NO BUFFER ON WETLAND N AS ENTIRE `\ WETLAND WILL BE IMPACTED AND MITIGATED 020 ACRES OF TOTAL PERMANENT WETLAND DISTURBANCE WETLAND N ' PROPOSED EDGE OF PAVEMENT 1 RETAINING all I WALL I WETLANO M �1 0.10 ACRES OF TEMPORARY G{C� WETLAND BUFFER DISTURBANCE OorURE EE AVEMENT f '1 EXISTING EDGE /f V`r y`OF PAVEMENT •, 037 ACRES OF PERMANENT WETLAND B FFFJi DlS111RBANGE MATCH TO SHEET 14 PLAN LEGEND & SUMMARY OF IMPACTS PERMANENT WETLAND 11- + TEMPORARY WETLAND TEMPORARY WETLAND BUFFER IMPACT BUFFER IMPACT c �— IMPACT PERMANENT WETLAND 4-�1tia BBUFFER IMPSTREAM {S'� � IMPAMCT ENT STREAM IMPACT WETLAND BUFFER EMPACT EAM an f6L LIMIT OF CUT OR FILL PROPOSED EDGE OF STREAM BUFFER WETLAND BUFFER PAVEMENT PERMANENT TEMPORARY WETLANQ TO WETLAND AB III WETLAND K 01 WETLAND M 0 ± ERANO N 111 WETLAND P 17 WETLAND U 01 F A,p 51- tiG F gr�A 0 50 100 SCALE IN FEET --------- EXISTING EDGE OF PAVEMENT ORCH 465 ALIGNMENT 6 STATION 7T1777777 RIGHT OF WAY WETLAND BOUNDARY we rva+o 512E WETLAND IMPACT IMPACT BUFFER IMPRC 0.42 ACRE 0 ACRE 0 ACRE 023 ACRE 0,13 ACRE 0 ACRE 0 ACRE 0 ACRE 1.16 ACRE 003 ACRE 002 ACRE 0.56 ACRE 020 ACRE 020 ACRE 0 ACRE 0 ACRE 191 ACRE 0 ACRE 0 ACRE 012 ACRE 0.13 ACRE 0 ACRE 0 ACRE 014 ACRE TOTAL TOTAL STRFJU41 TOTAL TEMPORARY STREAM STREAM IMPACT BUFFER IMPACT >iREAM BUFFER IMPACT 0016A 012 ACRE 444 ACRE 126 ACRE 0016 000 ACRE 020 ACRE 000 ACRE 014 AGRE 001 ACRE 017 ACRE 0 ACRE 024 ACRE 004 ACRE USAGE REFERENCE NUMBER; DATE: 1"91 SHEET 15 OF 25 pA M (NAVD) 88 S. 28. T. 21 N. R. 4E. W.M. 001 ACRES OF TEMPORARY WETLAND BUFFER DISTLIFUU O 50 100 SCALE IN FEET PLATY LEGEND & SUMMARY OF IMPACTS EXISTINGDGE T VG ENT ..�""�'"". ...._. PFRMANE.4T WETLAND ND TEMPORARY WET ND - TEMPORARY WETLAND II -� DITCH BUFFER IMPACT BUFFER IMPACT IMPACT 465 PERMANENT WETLAND ® STREAM ..UT !"L PERMANENT STREAM ALIGNMENT & STATION IMPACTIMPACT WETLAND ® BUFF RRIMPA EMPACT STREAM m ru. LIMIT OF CUT OR FILL TiiTm" RIGHT OF WAY BUER FFERNNT PROPOSED EDGE OF _ _ _ •� WETLAND BOUNDARY • • • • STREAM BUFFER • • • • • "' • WETLAND BUFFER PAVEMENT NIELANO WETLAND CATEGORY WETLAND PERMANENT TEMPORARY WETLAND TOTAL WETLAND BVFF=R IMPACT TEMPORARY BUFFER IMPACT NUMBER IECOLOGI'7 $17E YW_YLAHD IMPACT IMPACT 014 ACRE WETLAND AB Ill 0.42 ACRE 0 ACRE 0 ACRE 023 ACRE WETLAND K 111 013 ACRE 0 ACRE 0 ACRE 0 ACRE 001 ACRE WETLAND M II 1.18 ACRE 003 ACRE 0.02 ACRE 056 ACRE 017 ACRE 111 020 ACRE 020 ACRE 0 ACRE 0 ACRE 0 ACRE WETLAND N 1.91 ACRE 0 ACRE 0 ACRE 012 ACRE 024 ACRE WETLAND P 11 0.13 ACRE 0 ACRE 0 ACRE 014 ACRE 004 ACRE WETLAND U 01 REFERENCE NUMBER: 1-5 STREAM TOTAL STREAM IMPACT TOTAL STREAM BUFFER IMPACT TOTAL TEMPORARY STREAM BUFFER IMPACT U w I. t n INTERCHANGE IMPROVEME IN ERCH APPLICANT BY: WASHINGTON STATE DEPT. OF TRANSPORTATIOF LOCATION ADDRESS: FEDERAL WAY, KING CO., 0016A 012 ACRE 444 ACRE 128 ACRE 0018 000 ACRE 020 ACRE 1 000 ACRE REFERENCE owow uoi}uaulflaa puenom ovs uoi}u�i}iw 3 xi p ueddd uolle:podsueal jo }uawpedaa GIBIS u00uiyseM 109[oad s}uawanoadwi el�ueial SZ aS/T9Z US - 9-1 ue1d UOIIB�IIIW puLMaM }}eaa T099-LSE/90Z xed • 0099-L9E/90Z auoyd TOT86 VM'alueaS • ooTT allnS'AeM GA110 OZL • 'Ou1 sJaau12u3 PVVGV/213J838 (G86I 'Azo1ezoge'1 ie;uauniozTnua) lenuL,W Z86I aq; se o; pazza;az zaULazaq 'Z861 'I-LS-A podag Ivaluilial uiv'SO-td tl.1.tvasag spuvl;aM :lvnuvW uot3vauilaQ puviiaM snautsug fo sd toJ fiuuV 'S'n alp pue (Z66I 'ASoloag;o;uauipzeda(j a;u;S uo;SuTgseM) lvnuvjN not;vauilaQ puv uotavj9puap1 spuvpaM aav;S uo;8u.' M aq; ui paquasap uaeozdde aupnoz aqp 2uisn papeauTiap pue pai}puapi azam spuel;am arts-uo atu AJOl040HI3W IN3WSS3SSV 'ails uo}2uuzoJ ail; ioj 2uTuueld uope�i;nu puelpan� a;eznaae algeua op adoas;uaTa. ns Io sT;nq 'a;eldwap uopeauilap puelpam s,ZOQSM 2uTsn;zodaz uoi auilap puelpam Ieuuo; e;uasazdaz o; papua;uT you si uinpuezouiaui uopeauilap puelpam siq; '33e4s IOQSM Xq paadu Xlsnoinazd sd ',LOQSM Aq pa;aiduioa ails uol2uizzo, alp jo puauissasse puepam AzeuTuiTiazd a }o s;insaz ag; slre;ap pegp zaipal ZOOZ zaquianol�l 6I ag; spuauialddns uinpuezouiaui snLL 'spold alduies puepam uigp!m sail3ozd lios 3o uopeunuexa g2nonp Apzadozd aqp uo sii3 uq Io ;uil ap aeuxzddop duape puails uopuuonq' alp uo spuelpam 3o;uapxa aqp Alapeznaae auTuizapap o; sem uoi;EauTlap aq; Io asodznd ajU 'auI szaauTEug WVgV/ggOggg Aq ails uol;e�pnu uop�uuzoJ aq;;e pa;alduioa uopeauTlap puepam aqp saquasap uinpuezouiaui sign 'ssaaozd niainaz pue uopenlena ails (LOQSM) uopepzodsuezl, 3o puauipzedaQ ape;S uol2uigseM Ieuizo; e q�nozq; sapTnpae uopu2pitu uieaz;s pue puepam a;alduioa o; ails algepins;sous aqp se uasogz) sem Apzadozd uop$uuzoJ ag1, ';aafozd al2ueuZ aq; }o uopalduio,3 aqp uioz; pinsaz pinon1 s;aeduii puepam alqupioneun Io punouie Iieuis e;uq; pa;edopue si pi 'seaze ai;Iez; g�iq ui sauel XeMpeoz njau 2uTppe op uoT;ippe uT'szanoAU ssaaau;aazip gp!m sduiez dooi jeaizanoia �upsixa ontip Io;uauiaaeldaz agp ui pinsaz 11!m paafozd al2ueizZ aiU 'sa2uegaza4uT St dS pue 191 (?IS) apno21 a;epS pue (S-D S ape;sza;ui ag; Io 6pTuTain alp uT suzaauoa dales ssazppe pue auip Ianez; anozduii op sasodozd (paafozd al2ueul) paafozci s;uaivanozdull a2uegaza4ul SI ds/191 uS/S-I a'U NOu1.3f100UINI :o; a;nog uopepzodsuezZ 3o puauipzedaQ a;e;S u042uigsrm zaauiBug paafO-ld '3d 'p;iggaN aarug :o j, zauauzijeui11f :uioz3 ails uo'4u214 w uo42uuzo' — uoTpuuiuizapaQ Azepunog uivazpS pue uotpeauilaQ spuepaM plezQ paafozd spuaulanozdull aSuegazapui si gs/I9I 2IS/S-I :paafgnS SOOZ aunj S :a;eQ uinpueaowow 'Ieo� �xisaa3woh3 Wb'St�/?1��N3S aze spuod za;um uado ARuauetuzad Iezanas 'spuepaM asatp o; uopippe ul a;is uo;.uuzoJ au; }o;sam pue 'Tpnos'tpzou au; o; pa;saol aze spuel;am pa;sazoj pue 'gruas/grutls';ua%atug sza;auiuzud ACiTlunb za;ens ui autlaap Iiuzano ue pue szagtunu piuotules ui sauTl:)ap :)T;utuuzp ui pa;insaz anetl uopu;sazojap pue;uauzdolanap uegzn;o s4aa;3a anpu.2au aip'.ila;uun;zojun •pagsza;unt Suruniuds pue 2uizuaz uouzIus anpanpozd u aauo sem;i 'ants Iluzano Jo stuza; uT Ilutus zatpuz si pagsza;em atp il2notpld •Xeg;uatuaauaulwOD JO sza;unt algUSTneu alp puu Xuntza;uM sogalXH aip o;ul suTuzp XIleryuana JaazJ sogalXH •paqua;um jaaz'sogalXH alms-azunbs-S1 Xla;uuiTxozddu atp }o uopzod zaddn atp unpT^t pa;uaol si ails uo;�uuzo' atis f,2010JPAH ntolaq uoissnasrp spuepaM atp ul pa;uasazd sr suopuaol Ilos 2unuaauoa uopeuuojtTi paliu;ap azow suopduasap lios SJ?IN atp uz);utu;ou pip lijzadozd atp 3o suopzod ui saldtuus Ilos'tlms sd •02uzu.2 patlau:puun Iletus a 3o uor -gsuoa puu atuotl allgow aplm-alSuis u jo;uatuaauld aTl; q;>M uopuTaossu uT III; puu 2uTpuz2 jo;unowu;uuaTyRBIs u o;;aafgns uaaq suip4zadozd ails, (i�00Z SDUN 'dQSfl)1:)nuz ullmNns, puu 'tueol;Its tuuti2uiiiag 'tuuol;lis tlsnuogouS 3o suazu zallutus tplm jantu zualugS se pa;sq si X;zadozd atp uTipIM ITos;ueunuopazd atU •sltos aupXij azu tlaTtlm 3o ile 'X;zadozd uo42uTzzoJ atp ;o sauepunoq atl; unpins znaao s;Tun 2uiddutu Ilos zno; ;utl; a;uaTpul f}unoJ $ui>i zoo sdutu ITos (SJ2IN) aatnzaS uopenzasuoJ az)znosag IuuO. N atlj Silos •;sang pue tl;nos ail; o; supuzp pue 2uidols Apua�? o; 4ui3 sl ails uo42uuzoJ aTp 3o Alduz2odo; atu IZ661 'Sf)Sfl) �laazJ sogalXH jo s>Izo3 tpzoN pue;saM atp ti;oq suTe;uoa;uip uiseq @Suuiuzp Awl a jo a2pa uza;sea atp uo pa;un;is sT X4zadozd atp ;etp sa;ez;snlll uaze atp jo dew:). dez2odo; Aug Ajzanod (sgsfI) ,CanznS aT2oloaLj •S• fl atlZ •Aizadozd uo42uu1oJ atp ;o;sam laa; 00:p Xjapnuixozdde aauapisaz AInuu;-al2uTs u;u sa;eunuza; puu satuotl Aiitue3-abuts anT; o; ssaaau su sanzas puoz IanuB SltU •XuM tpip9£ tpnoS uiozj tpzou spua;xa;utp peoz lanuz2 abuts a Aq passaaau si klzadozd uo42uuzo' atIl •Ajzadozd ail; jo;sant pue tpzou pa;mol aze puepsazo; padolanapun 3o s;aez; a2zuZ •aauds uado uegzn puu;uatudolanap Iepuapisaz A4 ap-naol o; pa;nuil asn peel 2uipunozzns tpyA 'padolanapun Xla2zel sT ails alp 2uipunozzns uazu atis, •sazae l;G•£ ;o azis lu;o; u tp!m (S£g pauoz) Iaazud lepuapisaz Ieznz a To s;sTsuoa a;Ts u042uuzoJ atls, SNOI114N00 JNIISIX3 •paXanzns Xpuanbasgns azam pue 'uogqu s,zo�ianzns �jmd pue s2uU uld Turd pazaqu nu XIanl;rTaasuoa Aq pajzutu azam sauepunoq puepaM •Iuua;utu IIIj anpeu-uou a;euTixozddu o;;duTaiie uu ui suopuaol;old aldtuus uT 4IM suoprpuoa lios pue AtiduiSodo; o; pied sen� uopua�u IuTaadS aauauadxa puu ';uauidpn[ luuoissa;ozd 'uoT;uuuojm alqultunu Buisn paljquapT azam sauepunoq puepam ails sauepunoq pueldn/pool;any pa;edi�pue atp jo apis zatl�Ta uo;aa; 0t o; c, uaanyaq pa;e:)oi sold aldtues;e a;up Bolozpk4 puu'j!oS'uoi;e;a.2an papzoaaz pue panzasgo s;si2oloiq 'silsin ails atp,9uunQ •szo;eaipuT plaT3 anzasgo o; 800Z XEW 6Z Pu-e £Z uo ails 110421JuzoJ atp o; s;ism ails pa;aldwoa;3u;s y VqV/gg f)ggg 's;TsTn a;is XJUUrLuilazd o; uopippu uI Z a,9ud 80OZ aun f 5 44IggaN aaTug 'JW 1 1 allgoui alp;o 4uauiaasld ag; ipiM pa}uiaosse 2uipuz2 alp 2uunp paprduii sem }nq za2ml uanw sent Alluu,2uo puepam sigh 4ptp Alalil si 4I •y xipuaddV jo £ azn2i3 ul pa4uasazd azp V puppaM 3o sgdpz,9o;ogd •(+M'V3's}suagad siumadoly) Iiu4xo3 mopeawjo;unoure Ilvws u o} uopippu ui (M:)Vq'vaivutpunty stzvlvgd) sspz2�izuupa paaz Aq paleunuop si puupam snp ui uopp4a2an •(Z azaid 'd )ipuaddV) Pam pamow/umul se paun4uiuui si 4plp puupam 4ua2zauia auL.4snlud Iluuis AlauiaAxa up se s}sixa 'Ajzadozd aLp jo uopzod uzalpzou age ui pa�eaol 'd puupaM •(Z am2i3'y xipuaddV) ,�zadozd ag; jo suopzod uzag4nos pup le4uaa aLp 2uppunuop (J puppaM) spuepam 4ua2zawa alp;o auo g4lm 'A4zadozd aLp uo pai3quapi azam spuppam IuAzauia ony pue puepam pa;sazo; auo;o Ip404 d SdN11113M *molaq pa4uasazd azu sza4Lmaaejjns pup spuppam aill;o silelaa •plat; alp ui pa22eu pue palpaol azam �IaazJ soq@IAH Io Izo3 LpzoN alp pup 'slauupgz) moU4no puu mo13ui 'puod alp Io qzplu za4um g2ig Xzpuipzo alp 'spuppamjuagzauia alp o4 uopippu uI •papaugap sauepunoq s4i pue pal;puapi spn, puppam }uaBzauia aBzul auo 'uopuauilap puegam aupnoz alp Io asznoa alp g2nozgZ •A4zadozd - aLp;o sauppunoq uza4sam pup uia4sea alp 2uole pa4mol Aluuluizd azp saaz4 azn4uw 'puod apeui -uuui alp ;o Lpnos Ala4eipauiuii spazu alp zo3 4daaxg •(MJd3 'vllofilvl snuixv t3) gsu uo2azp pule '(fIDVJ 'MutS.Olua snulud) AuaLp za:piq '(JV3 'vd tvaoilai q snlndod) p00muo44oa �Iapiq '(DV!l 'n,qu snuly) zaplu paz apnpui gulp saa4 snonppap pup '(JV3 'vinild viniLL) zppao paz uza}sam (f1JHd 'ysagum vgnslopansd) zi; sul2noCl apnpui 4plp saa4 snozaliuoa paza:Ppas 'suazp uMpl se pauie4uiuui uaaq anpq 4ug; sasspB azn4sed puuldn Ieaid,,4 sasizdwoa a4is alp uo uopu;asan +' •Ipua}uuz iii3 Pup Ianpz2;o zaAel unp p }o pa4an4suoa J AeMaAup mozzeu p Aq passaaap si pup )4zadozd alp;o zauzoa 4samipzou alp ui pa4mol st a2uzu2 aiU -puod pa4anz4suoa u aq o; szuaddu 4egna o; umop sadols Al;ua2 4ul4 Ipuaiulu iii3 snoingo ;o;lags peozq a uo s;is auiog aligoui aLU •a4ls alp 3o uopzod jw4uaa-4spa alp ui pa4uaol asnoLl duind Iluws u pup Aqzadozd alp Io suopzod uzalpzou ag; ui paleaol a2ezu2 palpplap Pup a4is awoll aligoui u o4 pa4nutl Apuazzna si Apadozd alp uo juauidolanaQ •(I azn2i3'y xipuaddV) uojSuigsuM'AuM luzapa3 ui 4aa4S Lpf9£ LpnoS 3o apis Lpnos alp uo pa4uaol si A4zadozd aiLL -800Z APW 6Z PUP £Z uo pa}alduioz) azam a}is u042uizzoJ alp uo spuupam aauouilap 04 s4isin a4!S S1inS3a NOliV3NI13a •f4zadozd alp gSnozlp }sang pue Lpnos 2uinolu za4pm aau;znsgns Io junowe autos puu slanal za}pnlpunoz2 gsig XIlpuoseas Xq paauanpui XIinpag azp spuppam a4is uo42uuzoJ alp 4PLp pauinsazd si 41 •spuupam pup span za4um uado asag}:poddns slndui za4um amyns pup salgp4 za}pmpunoiS q2T •Xjzadozd ag; 3o Azppunoq wa}sam alp 2uolp smoU �IaazJ sogalXH 4saM Io �Izo3 LpzoN age 'dpsu-I -pan, 2uipunozins a4uipaunui agp ui pup fjzadozd uol2inzzoJ agp Lpoq uo pa4paol £ a2rd 800Z aun j s 44iggaN aanzg *JW •adols au; uo pa;pool spudpam au; o;;uaopfpr algiuzaosip;ou azana—stua44rd II?j snomgo snip pup—azn;xa; pup zoloo Ilos ul s;spz;uoo �Izp;s'suoppool;id;sa; ul;uazuddu azam zoloo Ipos ui sa$uptlo g2no-I4Id •zoioo Ilos ui saguetlo aligns tputi uopoun[uoo ui uoprzn;us llos ui a2upzlo pidrz u zl�nozzl; algrypuapi Xlzualo SUM raze sill; uz,(zppunoq puelpam atU •smoU za4rm aou;znsgns tuoz; s;ndui oTBolozp)izl saniaoaz pugl;am azl; }o uopzod snU •auzoq aligoui atp spzumo; 'adolsdn 'pzrnatpzou pua;xa saop puul;am atp;o agol p 'a;is atp;o suopzod;ui3 atl; unl;im pa;pool si uza44pd uo4r4a2an site g4lm up pm ate;o;sotu aT.t1M '(£ azrtdid'y xrpuaddV) dnoza44nq 2uidaazo pup'('y3'vIvloaouvl 0Sv}uvld) uiu;uuld usilsua '(flDvq 'alvuzj�(fo wnovx-mvZ) uozlapuep uounuoo 'ssrz2)(zrugo pail '(JV3 'sq.uvll}dvo 9t3so dV) sspz24uaq lunzoloo 'Iie;xo; mopuatu '(-Jy3 'vaovutpundv vonisad) anosa; Ilu; o; pa;nuzl si pazp slIp ul uopp;a$an;ugunuoQ 2uintOtu aupnoz o;;oafgns uaaq anpll;ptp sgzo; pup sasspz2 azryspd uotutuoo Xq pazua;ogzgtlo alp puppam snp 3o suoi;zod uzatpzou aILLL •(E azn%j 'V xipuaddV) puod apvuz-um azl; }o u;nos XIa;uzpaunui pup laazJ sogalXH 3o �Izo; tplou alp o; ;uaoufpu puppam atl; jo fzrpunoq uza;sam alp 2uole pa;pool alp saaz; Ilse u02azp ma; u pup 'zppaa pal uza;sam poomuo;;oo �Ioplq'zaple pal paza;;uos g2notplu'azr4pu ui;ua2zatua si puel;any atp 3o;souz 'Iaozud;oafgns atp ultl}IM •s;uauoduzoo pa;sazoj pup 'gnzos/gnztls '4ua2zauza sapnloui;ptl; purl;any aulzaniz/uoissazdap za2zrl gz)ntu u jo uopzod Ilezus u sz J puupaM'A;zadozd uo;2uuzoJ atl; u g4jM •(Z azn2i3'V xipuaddV) ails atp;o suopzod tuatl;nos pup luz;uao atp sa;ruiuzop tlz)Rm ID puel;aM si a;is atp uo puppam;sa2zul al.LL • s;isin plan atl; 2uunp pauip;go aq;ou pinoo uopoatzuoo snl; 04p214sanui zatpzn3 o; laozed 2uuogl421au alp ssaoog o; uoissituzad pale snp ui panzasgo aq pinoo uopr;a2an pupl;aM Jo szo;poipui ON •suazg untpl paum umuT Alzeln2w jo a2pa atp;p spua AI;dnzqu pa;sazoj;i Il:)Rm J purI m 3o uopzod uzatpnos atp ;ptl; szuaddu 41 •J puppaM Jo suoT}.zod a4ts33o alp o; ;oauuoo;ou saop g purl4aM;o uoi;zod a;is-;io atl;;pqa saeaddp;X pupl;any atl; jo suo pod ails-j3o atl; tl2norti;j tl;nos smolt;ptp lauuetlo a2euipzp IleuYs e;o $uipooT; Airzodtual g2nortp pug 'silos pa;oedwoo pup spuoz;uamfpr uiozj;jouna aoujzns'algg; za;ent g2iu AIlguosuas atp y1m suopopza;ui tl nortl; pauir;sns si puppanl situ sapiununuoo u01.41!4a2an ui sa-gugtlo opruzpzp g4yA papuodsazzoo ;gtp AtldrzSodo; ui sa2tzpzlo pidrz Aq paijijuap! Alzualo azam purlpam si jo saurpunoq aqj, •y xipuaddy;o £ azn2id ul pa;uasazd azu g puupaM jo stlduz2o;otld •(MDVd 'suada t snlnounuvy) dnoza44nq 2uidaazo pup 'zaplu pal '(+Jy3's!gv.}oad9 sngnu) fulaquotules '(f1J`d3 's:us,cofisv.4ao Vu9jusap) Azzagoso Aq pa;uunuop si puupam azl;;o uopzod sill; ui uope;a�an •laazud Buuogz42zau atl; uo pa;pool puepant pa4sazo3 auu;snled za2zrl r jo uopzod;sounua;sant atp Allunpu si pup A4zadozd ail; jo zauzoo;spatpzou auzaz;xa all; ui pa;uool si g puel;aM •;aaz;S tpt gc g4noS;o apis tl;.zou ate uo spurpam ate uzoz} moU aoe3znsgns tuozj pup algr; za;pm u2•t1 XUuosras atp tl4lm suopouza;ui tl$nonl; paumisns si purl;ant snp;gtl; pauinsazd si ;I •uopu;a2an to a2upllo p tl;tn-t papuodsazzoo osle;ezl; uopezn;rs Iios }o slanal pup azn;xa; pup zoloo Ilos atp ui sa2ump pidgz g2nozzl} pappuapi azant V pzzpl;aM jo sauupunoq aiU •silos pupl;aM 3o uopptuzo3 atl;;uanazd o; XpuaioT33ns spazp;uaoefpr atl; suzpzp I(Ia3ilT4rz4; Tpiza;gtu TI.3 UIroT X11anpz$ Xpues;o suazp Xq popunozzns si puepam atll, •auzotl :P aspd 90OZ aun j g :plggaN aozug *IW Mr. Bruce Nebbitt 5 June 2008 Page 5 The southern portions of the wetland are dominated almost entirely by reed canarygrass, although a few small patches of soft rush (Juncos effuses, FACW+), Nootka rose (Rosa nutkana, FAC), Himalayan blackberry (Rubes armenicus, UPL) and Douglas spiraea (Spiraea douglasii, FACW) are scattered throughout the wetland (Appendix A, Figure 3). Small upland islands were identified directly south and southwest of the man-made pond. Vegetation within the southwest upland island is dominated entirely by Himalayan blackberry, while the upland island directly adjacent to the man-made pond is dominated by common mixed pasture grasses and forbs. WETLAND RATINGS The wetlands within the Corrington property were rated using the Washington State Wetland Rating System for Western Washington, Revised (Ecology, 2004) and the Federal Way City Code (FWCC), Critical Areas Ordinance, Chapter 22-1357 Wetland Categories, and Standard Buffers (FWCC, 2005). In addition, the Cowardin classification for each wetland was determined using the Classification of Wetlands and Deepwater Habitats of the United States (Cowardin, 1979). Wetland C was previously rated in November 2007 by WSDOT.1 The ratings forms were reviewed and concurred with and have been included in Appendix B of this report. Wetland rating forms for Wetlands A and B are also included in Appendix B. The results of the ratings are summarized in Table 1 below. or ki I WMbmd 1%14celifi an ions and RatinGt ,y Wetland Namew Cowardln Class Ecology Rating (Total Score) City of Federal Way Rating Wetland A Palustrine Emergent Category IV (29) Not rated -exempt* Wetland B Palustrine Forested Category II (64) Category I Wetland C Palustrine Emergent Category 1 (71) Category *Wetland A most closely matches the City's description of Category III wetlands, although Category III wetlands less than 2,500 sq. ft. in size are not subject to regulation by the City. Wetland A was rated as a Category IV wetland due to its lack of hydrologic functions and very low habitat functions. Wetland B was rated as a Category II wetland due to its high water quality and hydrologic function score, in addition to a relatively high habitat score of 26. Wetland C was scored high in all three functional areas, achieving a total score of 71 points, placing it in the Category I classification. SURFACEWATERS Several different surfacewaters flow through the project site; all represent jurisdictional waters of the state due to their connection to the North Fork of West Hylebos Creek (Appendix A, Figure 2). i Tatiana Craig and Patricia McQuery, Corrington Mitigation Site Memo, November 2007, Mr. Bruce Nebbitt 5 June 2008 Page 6 The most important surfacewater within the Corrington property is the North Fork of West Hylebos Creek (Appendix A, Figure 2), which enters the property after passing through a culvert under the gravel of South 364th Street. The creek flows south along the western edge of the property for a total distance of approximately 400 feet. During the site visit, the ordinary high water mark of the stream channel was identified and flagged with orange survey tape for subsequent surveying. The North Fork of West Hylebos Creek drains into West Hylebos Creek approximately three- quarters of a mile after leaving the property, converging with the East Fork of Hylebos Creek at river mile 5.1 located near Porter Way in Tacoma. As it borders the project area, the North Fork has an average wetted channel width of approximately 10 feet (Appendix A, Figure 4). Average water depths at the time of the site visits varied from 8 inches to almost 2 feet. Little channel form diversity was observed within the project area, and the North Fork currently exists as one long riffle. Substrate material is dominated by small -sized cobble and areas of sand/silt. Downstream reaches of West Hylebos Creek (near the confluence of West and East Hylebos) are known to support runs of coho, chum, and chinook salmon, and steelhead and cutthroat trout. Of these species, the North Fork of West Hylebos within the project area is known to support coho salmon in addition to cutthroat trout. The other surfacewater feature on the property is a medium-sized man-made pond in the central portion of the property. The pond receives water inputs via a small inflow channel that drains west from the adjacent property (Appendix A, Figure 4). The inflow channel has an average width of approximately 2.5 feet and, at the time of the site visit, had an average depth of 1 foot. The source of the input water is groundwater discharge from the large wetland complex located north and east of the Corrington property. The water is presumed to flow year-round. The water level within the pond is controlled by a small concrete and timber weir located at the west edge of the pond (Appendix A, Figure 4). From this point, outflows from the pond travel west through a channel of the same size and character as the inflow channel for a distance of approximately 110 feet before the outfall channel makes a 90-degree turn and flows north (Appendix A, Figure 4). Outflows continue through this north -south oriented channel for a distance of approximately 50 feet before entering an east -west oriented culvert and outfalling to the North Fork of West Hylebos Creek. HISTORIC WETLAND FILLS In addition to formally delineating the boundaries of the on -site wetlands, BERGER/ABAM staff roughly calculated the extent of historic fill activity within the bounds of the study area. Throughout the delineation, special attention was paid to dramatic differences in soil structure and color that would indicate past fill activity. Although in a few instances, areas of fill were identifiable, conditions on the property did not lend themselves to easy identification of historic fill activities. This is despite the fact that based on topography, it is obvious that there has been a considerable amount of earthwork done on the site. Mr. Bruce Nebbitt 5 June 2008 Page 7 Soil pit data from the slopes immediately south of the mobile home suggests that wetland soils were redistributed throughout the northern portion of the site as a topsoil layer, presumably i after preliminary grading was completed. Sample plots in some of these areas revealed soil l matrices colors indicative of mixing or artificial layering. Although the slope in question was obviously graded and portions of Wetland C extend up the hillside, soil samples taken in upland plots immediately adjacent to Wetland C did not provide evidence of fill activity but lacked positive indicators of wetland hydrology. The portions of Wetland C that extend up the . _ hillside are supported by subsurface water flow that is causing saturation within 6 inches of the 1 surface. Local topography indicates that subsurface water is flowing from the northern portions of the property (north of the mobile home). It is reasonable to assume that the grading and compacting of soil performed during the placement of the mobile home have severed some of the hydrologic linkages that would have supported wetlands immediately east of the hillside portions of Wetland C. The areas adjacent to Wetland C that could have been hydrologically impacted were not included as areas of historic fill since no evidence of actual fill activity was 1 observed. The areas in which fill activity was observable and identified as historic fill areas are described below and shown in Appendix A, Figure 5. Soil samples in the immediate vicinity of the single -car garage and driveway revealed the presence of gravel -like material close to highly saturated soils. Deep fire ruts and woody material placed on the ground to allow access to the garage were also observed. Positive indicators of hydrology in these areas coincided with their close proximity to Wetland C. These areas were obviously filled during the construction of the driveway and garage (Appendix A, Figure 5). Areas adjacent to Wetland A were also suspected to have been wetlands prior to the completion of grading activities on the site. Soil test pits in these areas revealed the presence of higher amounts of sand and gravel material in addition to rapid changes in soil color by location. Unfortunately, due to the sheer volume of manipulation in the area, it was difficult to estimate the extent of fill that occur within wetlands. It is likely that a significant portion of the driving and mobile home site that are presently gravel existed as marginal wetlands in the past. An estimation of the extent of disturbance or fill in these areas are presented in Appendix A, Figure 5. Lastly, the portions of Wetland C immediately south of the excavated pond were obviously j disturbed in the past. Spoil piles from the excavation of the pond were probably placed in this area based on the presence of uneven topography. It is interesting to note, however, that although this area is obviously composed of dredge spoils, all three wetland indicators were observed during the delineation. Approximate boundaries of the dredge spoils were mapped based on topography and are shown in Appendix A, Figure 5. REGULATORY ISSUES Wetland and streams are regulated on federal and state levels by the U.S. Army Corps of Engineers and Washington State Department of Ecology respectively. These critical areas and Mr. Bruce Nebbitt 5 June 2008 Page 8 their buffers are regulated on a local level by the City of Federal Way under the FWCC. Based on the FWCC, Wetland A would not have a base buffer as it best matches the description of a Category III wetland, but is less than 2,500 square feet in size and, therefore, the City would not require buffers. Wetland B would be classified as a Category H wetland under the FWCC with a corresponding buffer of 100 feet. Wetland C would be classified by the FWCC as a Category I wetland and have a base buffer of 200 feet. These base buffer widths can be further reduced, up to 50 percent of the base width, through a City -approved buffer enhancement plan. The North Fork of West Hylebos Creek would be regulated by the City as a major stream with a 100-foot base buffer. The man-made pond and inflow/outflow channels would be regulated as minor streams with a base buffer of 50 feet. It should be noted that direct impacts to any of the on -site wetlands would require prior approval by the U.S. Army Corps of Engineers, Ecology, and the City of Federal Way. LITERATURE CITED Cowardin, L. M., V. Carter, F. C. Golet, and E. T. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. US Fish and Wildlife Service, Washington, DC. Craig, Tatiana and Patricia McQuery. 2007. Corrington Mitigation Site Memo. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-1, U.S. Army Engineer Waterways Experiment Station, Vicksburg, Mississippi. Federal Way. 2005. Federal Way City Code (FWCC), Critical Areas Ordinance, Chpater22-1357 Wetland Categories and Standard Buffers. Available online at: http: Lwww.citvoffederalway.com/search.aspx?srch=critical+areas. Reed, P.B., Jr. 1993. Supplement to List of Plant Species that Occur in Wetlands: Northwest Region 9. U.S. Fish and Wildlife Service National Ecology Research Center, St. Petersburg, Florida. Reed, P.B., Jr. 1988. National List of Plant Species that Occur in Wetlands: Northwest Region 9. Biological Report 88(26.9). U.S. Fish and Wildlife Service National Ecology Research Center, St. Petersburg, Florida. Snyder, Dale E., Philip Gale, and Russell Pringle (USDA). 1973. Soil Survey of King County Area, Washington. USDA Soil Conservation Service. National Cooperative Soil Survey. Washington, DC. US Geological Survey (USGS). 1997. U.S. Geological Survey, 1:24,000-scale topographic map of the Poverty Bay 7.5' quadrangle (1957, revised 1997). Denver, Colorado. Mr. Bruce Nebbitt 5 June 2008 Page 9 Washington Department of Ecology (Ecology). 2004. Washington State Wetland Rating System for Western Washington —Revised. Publication #04-06-025.Olympia, Washington. Washington Department of Ecology (Ecology).1997. Washington State Wetland Identification and Delineation Manual. Publication #96-94.Olympia, Washington. Appendix A Wetland Figures Orth Lake Kitsap —' �..... King 5.336th St ederal ay Pierce _ .5.34-{th_5i_ D 99 Lake KCillarn y --i-S.356th St — _ `'■ r i I C Im ; r. I Corrington i Mitigation Site _ „ �64 h St S. ¢L�idCy •.-. �� v •IN - r loll S.373rd St_. 9 NCQ o Figure 1 Project Area Vicinity Map 1-5 - SR 161/SR18 Triangle Improvements Legend ® 0 1000 2000 Feet I Mitigation Site ^I I 1-1 I Figure 2 Wetland Delineation Results Legend 1-5 - SR 161/SR18 Triangle Improvements Mitigation Site Boundary OHWTVI Delineated Wetland Boundary Culvert J Major Stream Sample Plot Minor Stream e0 50 100 Feet f I I I_ J d S;,41a , l - J t _ • ! 'F- ���.: �'_ �' _ ' � 1 ..c.;f - Wit. 19. Xi • ,r r_ r_ 'y�Y _ r • � �'�r:,s.�^��� - - . � y it - ..i[ . - ^.1.•ydi � i%1 �r-�v�-i�ti��Sry . .. r -fir �}F-{, - '•.". Y�.., �' 1 - - 1 • mot- .�.� _ �,�^ :- _ �,C•• •• •ro��. . Legend Mitigation Site Boundary Delineated Wetland Boundary Major Stream Minor Stream - I OHWM — — — Culvert Approximate Fill Boundary Figure 5 Approximate Fill Locations 1-5/SR 161/SR18 Triangle Improvements e0 50 100 Feet Appendix B Wetland Rating Forms I 11 11 � j I I j I i Wetland name or number A WETLAND RATING FORTH — WESTERN WASHINGTON Version 2 - Updated June 2006 to increase accuracy and reproducibility among users Name of wetland (if known): Wet land A Date of site visit: _4/23/08 Rated hy_Brian Bie& er _ Trained by Ecology? Yes_No—X_ Date of training SEC: 29_ TWNSHP: —21N RNGE: 4E_ Is S/T/R in Appendix D? Yes_ No Map of wetland unit: Figures 2 & 3 Estimated size 500scl. f.t SUMMARY OF RATING Category based on FUNCTIONS provided by wetland I II III IV X Category I = Score >=70 Category II = Score 51-69 Category III = Score 30-50 Category IV = Score < 30 Score for Water Quality Functions Score for Hydrologic Functions Score for Habitat Functions TOTAL score for Functions Category based on SPECIAL CHARACTERISTICS of wetland I 11 Does not Apply X Final Category (choose the "highest" category from above) Summary of basic information about the wetland unit Wetland Unit has S ecial , - Cltara�teiis cs �:"� "• '' 'We#land' a ss edr o n . , Estuarine De ressional x Natural Heritage Wetland Riverine Bog Lake -fringe Mature Forest Slope Old Growth Forest Flats Coastal Lagoon Freshwater Tidal Interdunal None of the above Check if unit has multiple HGM classes present z 16 3 10 29 IV Wetland Rating Form — western Washington 1 August 2004 version 2 Wetland name or number B _ WETLAND RATING FORM — WESTERN WASHINGTON Version 2 - Updated June 2006 to increase accuracy and reproducibility among users Name of wetland (if known): _Wetland B Date of site visit: 4/23/08 Rated by_Brian Biet?er Trained by Ecology? Yes—No—X— Date of training SEC: 29 TWNSHP: 21N RNGE: 4E Is S/T/R in Appendix D? Yes_ No Map of wetland unit: Figures 2 & 3 Estimated size 1.5 acres SUMMARY OF RATING Category based on FUNCTIONS provided by wetland I II X III IV Category I =Score >=70 Score for Water Quality Functions Category II = Score 51-69 Score for Hydrologic Functions Category III = Score 30-50 Score for Habitat Functions Category IV = Score < 30 — TOTAL score for Functions Category based on SPECIAL CHARACTERISTICS of wetland I II Does not Apply X Final Category (choose the "highest" category from above) Summary of basic information about the wetland unit WetlandT7nit;has.,Srecia etlandHG As s~ 'd.�fo`Ra i Estuarine De ressional x Natural Heritage Wetland Riverine Bog Lake -fringe Mature Forest Slope Old Growth Forest Flats Coastal Lagoon Freshwater Tidal Interdunal None of the above Check if unit has multiple HGM classes present Wetland Rating Form — western Washington E August 2004 version 2 20 18 23 61 Wedwid name or namber: A11 Classifiention of vegetated Wetlands for Western Washington if.dta„hydrae c.,cnttrrn;lisle to C7Ch UCSStUtI d6nat a 1 'lo the ..,_....ii, _ . Y- _ ogj ` - - q - pp y emus unit bctnl; rotrii, ynu prn{ia 7 ia��s:utttt wish ntuitiyiejiliM:classes. Ir this. ease, identify which hydrologic criteria in questivtLs 1-7'ap ly acid ea to estion t I Are the water levels in the entire unit usually controlled by tides (i.e. except during floods)? 4t7 - YES - the wetland class is Tidal Fringe If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)'? YES -Freshwater Tidal Fringe NO- Saltwater Tidal Fringe (Estuarine) If vaurxetlarsdca+rbecfassifredasaFreJ�urrteiTiclalFringerurthefomtsforRl+wl6renetiands if iti_saSaftwaterTidal Frurgeit is rated as an F-rruarine wedmuf Wetlands that were call esnxtrine it the firm and second editions of the rating system are called Salt Water Tidal Frime in the Hydrogeomorphic Classification Estuarine wedands were categorized separately in the artier editions. and this separation is being kept in trig revision To maintain consistency between editions, the tern "Fswarine" wetland is kept Pluaw mote. however, cart the chaTacteristtns that define Catecory Land ri e_stuarine wetlands Kxc chrvxttt five n. 1 2. The entire wetland unit is flat and precipitation is only source (>9o%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. NO - go to 3 YES - The wetland class is Flats If vour wetland can be classified as a -Flats" wetland_ use the form for De ressional wetlands 3. Does the entire wetland meet both of the following criteria'? No X The vegetated part of the wetland is on the shores of a body of permanent open water (without any vegetation on the surface) where at least 20 acres (Sha) in size. Nn X At least 3096 of the open water area is deeper than 6 6 (2 m)'? NO go to 4 YES - The wetland class is lake-rrinav (Lae.ustrine Fringe) 4. Does the entire wetland meet all of the following criteria? io X The wetland is on a slope (slope can be very gradual) Vo ti The :wafer flows through the wetland in one direction (unidirectional) and usually comes from seeps; It may flow subsurface. as sheetfiow, or in a swale without distinct banks Zoo X :The water leaves the wetlarid without being impounded? NOTE::Surface,water does nat pond in these types of wetlands except occasio►rally in very small and shallow:depressions or behind hammocks (depressions are usually -e3 fr diameter and less than 1 foot deep). No - eo to 5 YES - The wetland class is Slope 3. Does the entire wetland meet all of the following criteria" Yes The unit is in a valley or stream channel where it gets inundated by overbank flooding from that stream or riv er 5 es k The overbenk flooding occurs at least once every two years. NOTE: The riverine unit cart contain deprtssiarrs that are filled with water when the river is rrol flaadhi NO - Lo to 6 ti-HS - The wetland clas.� is Riverinc 6. Is the emir{ wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time of the year. This means that any outlet, if present is higher than the interior of the wetland. NO - Lo to 7 YES -The wetland class is Depressionul 7 Is the entire wetland located in a very flat area with no obvious depression and no overbank flooding- The uni€ does not pond surface water more then a few, inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched, but has no obvious. natural outlet. No-eo to S YES -'the wetland class is Deartssionul H. Your wetfandiinit seems to Ix difficult its classify and probably cmt airm several differmt HOM cLwsses. For p mptc, uepcs at the bane tlf t slope may grade into a rwer ne floodplain or a small stream within a depressiorml wedmd has a torte of flooft along its sides. GO 1 AcK aND IDLXrjf Y WMCH OF THE HYDROLOGIC RE011ME,`' DkS RLB] L) UN QUFS (TUNS 1-7 APPLY TO 17UTSk Wl' AV LAS iN THE l,'h'IT (make a rough skekh to ia:lp you decided Use the fallv"Vg table to identify the appropriate cis to use for the ratinL System if ynu have several I10M claws pn-:uatt wOin your wet1w%1 NOTE: Use €(ties Isbin anly if the class that is recovnmerwied in 6k- secsxxl coltamt represents 100vor mare of the natal urar of the wetland unit being; rated ICtha are t oi'the class listed in autumn 2 is Its; them IM,6 of the unit eisysifv the wedattl us¢tu Ilse clan; tan rcrfacnts more that 9r,6 of tine tend area p, g 9HCxW ike werla6rd:rmit'bain retail Slop,: •- Rrverine fig • 'Ag1GM'Cldssatn Ilse `in,Ratrri °,. Rrvertnc Slue T Lie ressronal Dtnresswnal Sla c - l aka-frmae I Lakc-frtnee Depressrona1 * Riverene alone stream iv1th tr+ tioundary I Dt ressional Depressional _ Lake-trtri c De ressional Salt. Water Tidal Fringe and any other class of freshwater wetland Treat as ESTUARINE under walands with spacial charactcrrsties If you are unable still to determine which of the+ above criteria apply to your wetiand, oryou trove mote than 2 IICM classes within a wetland boundary, classify the wetland as Depres4ortal for the rating. Welland Rating 17 ms - western Washiin9ton4 versiat 2 (7106) Page 2 dM November 21, 2007 13 Welland name or number. A W 1Y Ff7I is.ihai; lli�� EI�TLONS :.1r�i 1 � w4itor.'giFalil $$ ca vc(uuoli-cxui-i _ ,u{tprovo .,�. "� 'R 1 Does the wetland have the green al to Improve water quality? (see p.52) R 1.1 Area of surface deprrastons within the riverine wetland that can trap sediments during a rlo"ag event • Depressi ons cover .> 314 at ea eif wetland ....... ...... Figure 1 • Depressions cover > V2 area of we@and.............................................................................. points # 4 '>1/2of 4 (l! depressions 2rea of unit draw palyponit on aortal photo or map] . Dcpressions ewer grescm but c It2 area of wetland ..................... ...........................•-- points -2 . Ain de ressinns revens....................................................................................................... ntnic - 0 R 1.2 Characteristics of the vegetation in the unit (areas with >90% cover at person height): • Trees or shrubs > J3 area of the unit ........ ....._,.............. .. point$ = B Figure 2 . Trees or shrubs > 113 arcs of the wetland............................................................................. points - 6 . Un rated, herbaceous plants> 2i3 area of onir....................................... ............ ......­nitAs =5 6 • ngrazc r aeeous plants area a trtut.......................................................- ....... points - • Trees, shrubs, and ung.ramd herbaceous < I/3 area of tent ................................................... points = 0 Aerial photo or map showing olv ons of different veaewtian tv es Add the unints in the boxes above 10 1t 2 Does the Welland have the aimportunity to improve water quality? (ice p..S3) Armwer YES iryou L•now or believe there are pollutanrs in gmundwater• or surface ware coming iato the wetland that would otherwise reduce we ter quality in streams, lakes or groundwarer dowatgradicnt from the wetland. Note which of the following canditions pro vida the sources of pollutants. A emir may hQVP pollutants cow''" front sawral sources, hru any single sour" would quay as opporrrnfry. c;ra�ng in the wetland or within 150 ft Untreated lrormweter disehars.es to wetland Tilled field$ or arehards %0thtn 150 ft. of wetland A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fir el ds, roads, or clear-cut IDgga ag Ratidcnlial, urban areas, gulf courses ore within 150 It. of we[ The river or suuam linked to the wetland has a contributing basin where human activities have raised levels of sethmem, toxic compounds or nutrients in Ilse river water above standards fur NLultiPlirs water quality. Lather TYES multinifer is 2 NO multiplier is 1 TOTAL —Water Quality Functions Multi iv the score from Ri by R2: Shen add score to table on . I 20 .• +;x�%7YflROLi7CiICFi3NG'f! � N�Isidiea�oita ihiiC�iibilgitd'iviiCtivaii�8+odrice'ti .'-daii`rt3iu'biosiiia�'�`��'4�' .iM1��% R3',�ad Does the wetland have the nafratial to reduce flooding and erosion? R 3-1 Characteristics of the overbank storage the wetland provides- Esrteoote the averags width of the wartand perpendicular to the direction of the flaw and the width of ncol stream or river channel (distance between Figure 3 banks.). Calealare the ratio- (average width of unit) /(average width of stream between baffW • If the ratio is more than 20......................................_........................................................... points = 9 4 . lrthe raga is between 10 - 20......................................................................................._.... peinIs - 6 ■ If the ratio is 5- eta ......... ............ ....---- .......... ......._.....,.._................... ........... ..... .............. . poinm - 4 . If the ratio is I- -;�5.................................................................................. ....................... points - 2 • If the ratio is -� 1...................... __............................................ ...........�..............................paints = 1 Aerial hato or ma shawin average widths R 3.2 Characteristics of vcgctauon that slow down water velocities during floods: Treat large woody debris as ':forest or shrub " Choose the palms approprrate for the best description. (polygons nett to have >903r Figure 4 cover at person height NOT Coweerdtn classes). 7 ■ Forest or shrub fora 113 area OR herbaceous plants> 213 area ............................................ points = 7 . Forest or shrub for > II10 area OR herbaceous plants > i13 area... ...............•--.................... points - 4 ■ Vegetation does vol meet above criteria .......................... ................:........:......................points - 0 Aerial heto or toe show in a1v ant of difiererrt v etatloa tvp is Add the aims in the boxes above 16�� �1 R 4 Does the wetland have the opitartuntty to reduce flooding and erosion? (soe p.S7). Answer YES if the wetland is in a location in tiro walershcd where the flood storazc. or reduction in water velociry, it provides helps protect downstream properly and aquatic resaurres. from flooding or excessive and/ erosive flems- Wont which of elm following condinorrs apply. Nr There are huntan strudiares and activities downstream (roads. buildings, bridges, farms) that ran be damaged by flooding. 2L__ There lire vatural resources downstream (e.g, sal men red&) that can he damaged by flooding _ Other Multiplier (4nswer NO if the major source of water to the wetland is controlled by a reservoir. or the wetland is .!idol fringe along the sides of a dike) YES multiplier is 2 No multi tzar is 1 * T(YFAT. - Flydrolo le Functions stultipiv the score from R3 by R4; eher: add-reare to table on p. 7 32 Comments: W ctlaW Rating Form-wcatem Washington, version 2 (7I06) lvll•. 11Gll aurgCllt November 21, 2007 14 Page:3of8 W,edandneme-arn!mkW7 AW a xsK W i urn o - des? g 1 Does the wetland have the aatentlal to provide habitat for many species? 1.1 Vegetation structure (see P. 72): Check the types ofvegetation classes present (as defined by Coivardtn) = Size tlrraahptd for ea:7t ciass a Figure.5 114 acre or more than 10%of the area if unit is smaller than 2.5 acres. 0 Aquatic Bed x Emergent plaits Scrublshruh (areas where shrubs have 3 3004. cover) Forested (areas where trees have > 30% cover) ;f [xe :spot has.a forestedclass check if. - The forested class has 3 out of 5 strata (canopy, sub -canopy, shrubs, herbaceous; moss/gruund- caver) that each cover 20% within the forested polygon. Ada the number of vegetation types that gualtfy. ff you have: Map of Cowardla vegetatfan classes 4 structures a more ....... .poiats = 4 3 structures................... paints - 2 2 structures.................... paints = 1 1 strucrure .................... Ro rots = 0 H 1.2 .livdroptrip ds (see p.73): Cheek rile rAaasCfwaterregimes (hydrapertcds}prw_reret:wl hln the wetland The .nrer fagtme has to Flgare 6 cover more than e0%ojthe wetland or 114 acre to cottni (sae text far descriphons ofhydroperiodsJ. 2 permanently flooded or inundated 4 or more types present paints s 3 a = Seasonally flu oded or inundated 3 armore types present ...... points Occasionally flooded or inundated 2 types present ...................paints - 1 5s� Saturated only 1 type present ....... .............points -0 r Permanently flowing stream or river in. or adjacent to. the -wet and Seasonally flawing stream in. or adjacent to, the wetland Lake-Mage wetland. ...«_....- 2 points _ Freshwater tidal wetland .....r.. = 2 points Hap of hydrop erEods. H 1.3 Richness of Plant Species (seep. 73): Count the onmber of p[an t species in the wetland chat raver. at least 10 ft (rllf ererapatche: afthe same species cox -be cornbitned to meet the sue threshold) You do not have to name the species. Do not include ELr=var ,bir,'fotl, reed caaarygrass purple ICosestrtf2 :Canadian Thistle. 1Fyou counted: a 19 species ..................... points - 2 Y 5 -19 species...» ............... paints = 1 List eciesbeiow if you want to: - 5 species ........................ points = 0 T H 1A Interspersion of Habitats (seep. 76): Decided from the diagrams below whether interspersion between Cowardin vegaiatiou (described is HI A)i or the classes and uavegetated areas (can include open water or vmudflats) is high, medium, law, ormone. • 1!l ie: Ifyou have 4 or more c*ees or 3 rating Figure 7 2 isad. ped mratatian ` open water,'ihe rating is Nape 0 poems ;Low - 1 point Modmift m 2 points elways' :liigh". Usetaap:of Cowwdln.dassw �' r,ipat;eirtir�idedclsiomelsj Hi - 3 m H 1.5 Srciil Habitat Features (seep. 77): Check the habitat fedturesthat are preseniinfne,vwlland, fhenumberofchecksis,thenumberofgout youpur Into inenext Column. Large, downed woody debris within the worlaad (> 4 in- diameter and 6. L1ong) _ _ Standing mass (diameter at the bottom > 4 inches) in the wetland Uodercnt banks are for at least 6,611, (2m) and/or overhanging vegetalion wends al least present — 3.3 6, (1m) over a stream (or ditch) in, or contiguous with the unit, far at least 33 ft. (f 0m) 0 Stable steep hanks of Fme material that might be used by beaver or muskrat for de aning _ (;- 30 degree slope) OR signs of recent beaver actiyiry are present (cut shrubs or 00esthat have not yet turnad greyebrownj At least 1/4 acre ofthin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated (s-&ucturesfor egg -laving 69 amphibWas) invasive plants cover less than 25% of the wetland area in each stratum.of plants NOTE: Ph, manual on.page 73:s an error. l H-1 TOTAL Score-. potential for pmviding habitat Add the Doi -its to the column above S Wetland RatingFomi - westem W asbingtoa, vets on 2 (7/06) November 21, 2007 15 Pagc4 of 8 Wellavid name ornlmrber. AW }I 2 Does the welland have the opportunity to prm*ide habitat for many species? (ugly 2gcm - fiar l) '_. I i3uffers (see P_ 80)r Chooser the description rl+ar $est rapro"nis oortdiMon of haffvr of wul?and unlr. The highdsi scaring Figure 3 trtlarion Aral applies ru ihu wadand is ro ae used in rho rating. Sm tex► f-or def?onion nj " undislarh ed ". 4 100m t33u ft] of relatively undisturbed vegetated areas. rocky areas, or open water >• 95% of circumference. No %auaure-Acme within the undisturbed part cif buffer [relatively uridismrbed aisn means nograring, no landsedpurg. no dailyluirnan use)-.. ... _.._.::points-= 5 Y 100ni (330 ftt of reladvely undisturbed vegetated areas, rocky areas, Or open water > 504E circtmtferertcc................ ..... _..... .:............ :..,...:...:,.-- ........... :...:....... _..........,..,:Points =4 _ 50m (170 R) of relatively undisturbed vegetated areas, rocky areas,.or open water n 95%arrertmference......... ......... . ...I .......... .. ....... ...................... .............. --•---- ------ --- -points -4 M)m (33010 of relatively undisturbedvegelttled an:tx, nrckyareas, or open water r 25% sires-rnferattce............... ..................................•....._....................................:......points = 3 _ 30m (170 ft) of relatively undisturbed vegetated areas, rocky areas.. or open w-irer fat-.] 5V4. circu ni Feren ca ....... ..................................... ...................... - - ._....points =3 If'butfer:doej notnieet any of the criteria above- _ No paved areas -(except puved trails}•or buildings withiu.25m (8o n) of wetland = 95`a circumference. Light to moderute grazing or lawns are 0K .........._....................... points = 2 _ No paved areas of buildings within 5rhr of wetland forte 30% circumference. Light m. moderate granng or lawns are OK ................... a ................. ..-_..._................ ..paints = 2 Heavy grazing in buffer.......................................................................:.........................points = I _ Vegetated buffers are < 2m wide (G..G 110 for snare than 95 .o ci'rcurnrerance (e.g. lilted 15eldr. . paving, hasalt bedrWk exten,to ddLe of wet'land) ..............................points = a Buffet' does not mect,anv of the criteria above ..... ..... .................... .................. .._..-... poinik = } Arlal photo showing buffers FI 2^< Gnmcfnsg and (MMmictYrraia (see p_ Nl) H.:. 2:1: Is the wetland p-.irl of a relatively undisturbed and unbroken vegetated corridor (either riparian or upland) that is at lent 150 ft. wide, has at least a 30% cover of shrubs, forest or native undisturbed prairie, that connects ro estuanes, other wetiands or undisturbed uplands, that are 7r least _50 acre% in sir? (Dams in riparian corrridorsi heavily used grave?muds, paved raads, are considered braaka:in the corridor). YES - 4 points (gd to it 2.3) NO = go to H 12.2 H-1 2 is the wetland part Ora relatively undisturbed and unbroken vegetated corridor (either riparian or upland) that is at least 50 ft- wide, has ao least 30% cover of shrubs or forest, and connects rr estuaries, other wetlands Or undisturbed uplands that are at lead 25 acres in si/e? OR a: Lake - fringe wetland, if it does not have an undisturbed corridor as in the question above? YES - 2 points:(go to H 2 3) NO = go to H 2.2.3 H. 2.2.3 Is the wetland: • Wilhin•5 mi (Skni) of a brackish or salt wearer estuary OR • Within 3 miles ern larga::fieLdorpasiurc (=• au acres) Oi? YES = i point Within i toile of a lake grea4•r thtiu 3") sere;' NO = 0 r><+riri, CateIpents: Wetland Rating roan - western Washington; version 2 (77106) November 21, 2007 16 Page 5 ofs Watlamt time ornumber. 'AW IT 2.3 ?Sear or ndiscrnt to naher _o_rinrin' hsibitats listed by WDFW (sec p. 83): Which of the follotwtg priority habitats are within 331) ft (190m) of thewcdand? .-VOTE: the eoameOlons do: not harp to he relarliwh• a ndasnrrhed. 77hrsr are DF3-def rPWo r 0reck wish your 1aea1DFW 8ao(ogur+f there an any gaerMmi _ Riparlan. Tho area adjacent to aquatic systems with Ilowme, water that ooittaim dumonts ofboth aquatic and terrestraI ecc6l stems which intmiall Y indutr1re each ether. _ Aspen Stands; Pure or mixed stands of aspen greater than 0.8 he (2 acres) CMU: Greater than 7.6m (25 ft) high and occurring below 5000 ft. _ Old -growth forests: (Old grow -tit west of Cascade Crest) Stands of at least 2 tree species, forming a mule -layered canopy with occasional small openings, with atleast 20 trees,ha (8 trees acre) > 81cm (32 in) dbh or > 200 years of age X Mature forests: 5lunds will: average dramelers exceeding 53cm (21 in) dbh, crens•n cover may be less than 100%-. decay. dcradcnce, numbers of snags, and quantity of large downed material is generally less than that found in old -growth; 80 - 200 years old west of the Cascade Crtsl. Prairies: R-ladvelynnndisnuhed areas (as indicated by dominance of narive plaritsJwhere greases andor farhs form the natural climax pfant community. Talus. Homogenous areas cf rock rubble riming in average size 0.15 - Min (0.5 =6.5 0), composed of basalt, widesitc. and/or sedimentary rock, including riprap slides and mine udisngs Mir be associated with cliffs. _ :Caves- A naturally occurring cavity, tecess, void, or system of interconnected passages- f)repon white Oak: Woodlands stands of pure oak or oaklconifer as.4ociations where canopy cawemge of the oak ccmpomnc of the stand is 25%. _ ilrtran Natural Open Space A priority• species reside% within or is adjacent to the open rpxce and acts tt for breeding and/or regular feeding: and/or rite open Space Rut ctiors as a ccrador connecting other prlcrov hobtrarr, espcctaiiy those slut would otherwise be isolated; andlorthe open space is an isolutrd remnant of nunzal habitat iwSar dui 4 Ito (10 acres) and is surrounded by urban development. Estrrary1Estnarv-like: D.epwatcr tidal hebmt-s and adjacent tidal wc4ands, usually 5cmi-caclosed _ by land but whit open, partly obstructed or sporadic access lc, !hn open ocean. and in which occan water is a least occasionally diluted by ffrshwater runoff from the land. The salinity may Im periodically increased above that of the open ocean by evaporation. Along some low -energy coastlines three is appreciable dilution of sca water. Estuarmc habitat extends upstream and landwrd to where ocean -derived saJtt measure less than 0.5 ppt- during the period of average annual low 17ow. Includes both estuaries and lagoons. Marin0E:wttxvrinr Shorellnex Shorelines 'include the intertidal and subtidal Dynes orbeaches, mid _ may also include the bat kshore and adjacent eampomnts of the terrestrial landscape (c.g., cliffs. shags. manse trees, Junes. meadows) that art trnporusn[ to sboreline ossocisted fish and wildlife and that cantribu[e it, shoreline function {e-g., sandrrxVJtog rccrwuntnt. nutnent eoatnbubon, erosion control). If wedend has 3 or more priority habitats-.= 4:poinL% If wetland has l:priority'habit ..- I point If wetland has 2 priority habitats ............... 3 points No habitats.......:...................... ­ 0. pants Note: All vegetated wetlands are by definition a priority Habitat but are not included in this list (Negrbv wetlands are addressed in question H 2.4). H 2.4 W edMd 4andacgpt Choose the one description ofthe lundsco pe around tlrr wetland that hest f)u (.tee p..84) • There are at least 3 other wetlands within 12 mile. and the connections between them are relatively taidi st tid)ed (highI gr rig belwern well:enix Of;, a:� is Wks shore wiiln wme bmiing, but connectons shotild'NOT be bisected by paved roads, fill. fields. or other dcvdopment...... ... points . The welIand ns Lakt-fringe on a lake witls IiWe disturbance and there are 3 other lake fringe wetlands within 112 mile ......... .... ...... .. .. ..._. .,.points g5 5 . There are at least 3 other.wetlands-within 112 mild; BUT die connections between them are dulurbed..:...�.................................................................. ......>. ............... T/oials" 3 at The wattand fringe bn a lake with disturbance and theie'are 3'olber. fake-fringe:wa�tlands within1l2 toile..............................................................................I.............::,.....................points e 3 • There is atIc ash 1 weland within I/2 urile ....... .. .-. ...points - 2 • Them: are no wetlamis :within 1/2 mile ........................................ � H 2 TOTAL Score --opportunity for prnr.dirig habitat Add the scores from HZ1, H2.2, 92.3, H2.4 � 14 � TOTAL for H 1 from p,tg.� 8 5 Total Scare for ]Habitat Functions Add the pot ors for H 1 and H 2; then record the result art p. 1 J � 19� ` Comments: Wetland:tstirig Fotm-wastam, Wastangicn, versioni2 (7/06) Mr. Ken Sargent November 21, 2007 17 Page 6 of8 Welland name ormunber. A W CATEGORIZATION BASED ON SPECIAL CHARXCTERISTICS Please derermine if the wetland meets the amibuter describedGelmv unit circle the appropriate anstt ers and Categorp- ►Yel:Iaterl:Type - Check n(f anyrrilaria that ejililj m }he xdlinnrl. Clrch the:Cdie&ry irhtin IHe appropriate yC•i £. lit erine. wet Fandi? (see p-86) Does the wetland unit curet the following criteria for Estuarine wellands? The dorrtinont water regime is tid;il, _ Vegetated, and With a salinity greater than 0-5 ppt YES 3 Go to SC 1.1 NO x SC 1;1 Is the Welland unit within a National Wildlife Refuge. National Park, National Estuary Reserve. Natural Arcs Preserve. State Park or Educational, Environmental. or Scientific Reserve designated under WAC Cat 1 332-30-151? YES 1 Category i NO - go to SC 1.2 SC 1.2 1, the wetland at least i acre. in si7x and rivets at lewr mro, of the following condlhon.0 YES - Category 1 NO - Category I1 'Rie Cat. I _ wei[an d is relative€v undisturbed (has no dikiu?. ditching, filling_ cultivation, gratin,;, and has ILht% [hart 10% ctaver of ntm-it aIive pliant xpectea. I l the. nets-nallvv SParttna npp,. are oil IV X7E-ex chat cover more than i(t% or the Overland, then the wetland should be given a dual rating (UfI). (.at 11 The axe of Sparring would be ratrrl a Category 11 while the relatively undisEll rbed upper mar%h with native species woui[1 Ise a car tmory I 17r) not, however. axcludtg the area of Spxrtimt in determining rho size threshold of 1 ". Dual At least 31d of the landward edge of the wetland has a 100 ft. buffer of shrub, forest or cur -crazed Ratio g or un-mowed graisiand - The wetland fills at leant ? rf the. following features: lidal Channels. depressions .with Optal water, UII Or conti irony freahwarer wetlands. tsc2 Naturml Tlrrita-c Wetlands (tee p 87) Natural Heritage wetlands have been identified by the Washington ,ants] Heritage Program/DNR as 61her high quality undisturbed wetlands or wetlands that support state 'I'llrea rened, Endangered, or Sensitive plant species. SC Z.1 Ts the wetland being rated in a Section,Towmship/Range that contains a natural heritage wetland? fl9tis question is used to screen out ano,f sites before you need to contact R-MIMQJMIZ.) SrriR information from Appendix D or accessed front W NlIPtDNR web -site YES _ Contact WNHP/DNR (see p. 74) and go to SC 2.2 NO SC 2.2 Has DNR Identified the wetland as a high quality undisturbed wetland or us a site With state threatened or endangered plant species? Cat I YES = Calegory 1 NO not a Heritage .Welland SCC3 Ban' (sve p. 8 "1 poa, the wetland for any part of tho unit) meet bolh the criteria for soils and vcgelaui on in bogs? Use Rig key below to identi ry 1r[lie wetiand is :r bag. If you arwver qts Batt will Will need to rate the rvedland bused ore its fltnctiorL 1. Does the unit have organic soil horizons fi e. lavers• of organic soil)_ either pests or mucks. that compose-16 inches or inure of the fast 32 inches dif %oil prnfile? {See Appendix R tiir a fitlltI key, to identify organtc soils)? YES - go to poguen 3 NO - go to question 2 2. lDors 11it wet) Mld have organic soils, ei11ter peals or mucks I[Lit are Iess th$n 16 Inches deep over bedrock, or an impermeable hurdpau such It,; cloy or volcanic malt, or r€uit rare Floating on a hake or palul? YE* - go to questiaat 3 NO k is not o bog far purpose nr rating 3 Dues 1114 until ]tine more Iltmi 70% cover orinusses at xround IevOe AND other p€altls, of present, consist of the "bog" species Iired rn Table 3 as a significant component or the vcgatalron. (more thatt 3014 of the coral shrub and herbaceous Dover consists Or SpCCIC9 iu Table 3l? YES _ Is a Ix+g for propose of raring NO j go to question 4 NOTE: If you are uncertain about the extent of mosses in the understory you may substitute that Criterion by nteasurisig the pH of the water ihar xecps into u hole dog at least 16" deep. Il• the pH is less: than 5.0 and the "bog" plant specter in Table 3 air present, Ia %etland in a bog. 4, Is the unit farcxred c, 30% cover) with Mika apnice. xubalpine fir- western red cedar, western hemlock htdgepoir pine, tlnakiing ieaprrt. i:uldenlann"a spruce, or wvxtern while pine. WITH any of the specie.: for wmbittutroi, orhp!cicto on the bike spLcit% p]arit list in "fable 3 as a siganificeat component of the ground c'ovar (% 30°.6 doverase of fire totoI shrubMerbaceous cover)? Cat. I YES = i:alegnry I No = is nor a 110%r for purrxixd orrtting Welland Ritling i omi - weslLrn Washington, veixiari 2 (7106) November 21, 2007 18 Puge 7 ofS Wetland-nameormimber. AW C4 Yorrxred W MIzrtdx (see p. 90) Does the- wetland have at least t arse of forest that meet one of these criteria for the Department of Fish and W ildli€e's forests as priority habitats? f you answer yes you will still need to rate the wetland basadon ftsfunction old -growth forests: (west of Cascade Crest) Stands of at least two three species forming a multi -layered canopy with occasional small openings; with at least 8 trewacre (20 treeslhectare) that are at least 700 years of age OR have a diameter at breast height (dbh) of 32 inches (81 cin or more). NOTE: The criterion for dbh is based on measurements for upland forests. Two -hundred year old trees in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW criterion is and "OR" so old -growth forests do not necessarily have to have trees of this diameter htature forests: (west of the Cascade Crest) Stands where the largest trees are 80 - 200 years Old _ OR have an average diameters (dbh) exceeding 21 inches (53 cm); crown cover may be less than 1000%; decay, decadence, numbers of snags, and quantity of large downed material is generally lea than that found in old -growth. Cat. I Yes - Category I NO = X not a forested wetland with ipecial characteristics C$ Wc030t in Coastal 1d1gg!nnx fire P. 91) Docs the wetland meant all of the following criteria of a wetland in a coastal lagoon? The wetland lies in a depression adjacent to marine waters that is wholly or partially separated frortt marine waters by saadbankr. gszvcl banks, shigdcl . or, lass frequently. rocis. The lagoon in which the wetland is located contains surface water that is saline or Irrackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs ro 8e mdasurwd favor the bottom.) YES = Go to SC 5.1 NO 2j not a wetland in a coastal lagoon SC 5.1 Does the wetland meet all:of the following three conditions? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grating) and he--, _ leas than 20% cover ofinvasive plant species (see list of invasive species on p. 74)_ At least 3f4 of the landward edge of the wetland has a 106 ft. buffer of shrub, forest, or un-grazed or un-mowed grassland Cat.1 The wetland is larger than 1110 acre (4350 square ft.) YES - Cetegort l NO - Categury I I Cat. 11 C8 1 rifeto(roe P. 93) Is the wetland west of the 1889 line (also called the Western Boundary of Upland ownership or WBUO)? YES = Go to SC 6.1 NO X not an interduaal wetland for rating Ifyou answer pen you will still need to rate th¢.wdlattd based on its frtttclions. in practical terns that means the following geographic areas: • Long Beach Peninsula -- lands west of SR 103 • Grayland-Westport — lands west of SR 105 . Ocean Shores-Copalis — lands west of SR 115 and S R 109 SC 6.1 Is the wetland one acre or larger, or is it in a mosaic of wetlands that is one acre or larger? Yra = Category II No = go to SC 6.2 Cat. II SC 6_2 is the wcdmd between 0-1 and I acre. or is it in a mosaic of wetlands that is between 0.1 and l acre? YES = Category I II Cat. lIl Category of wetland based on Special Characteristics Choose rho 'highest" raring #'Overland falls into several categories, and record on p. 1. If you answered N a for all types enter "Not Applicable" on p. 1 Comments, Wetland Rating Form — western Washington, version 2 (7l06) 1VJ1. 11Cll ZiWg'r= November 21, 2007 19 Page- 8 of 8 Mr. Ken Sargent November 21, 2007 Figure 1: Area of surface depressions 20 Mr. Ken Sargent November 21, 2007 Figure 2: Area of ungrazed, herbaceous vegetation 21 Figure 3: Average width of wetland compared to width of stream Mr. Ken Sargent November 21, 2007 22 CBWorlCerel Atev oat Vrtted •gyp � � ., :. �:Ilk fir':_ - - � •� � _ � •- .i't'.' Mr. Ken Sargent November 21, 2007 Figure 6. Hydroperiods 25 GGwombeacl.m1w Dal! ifBhC jo 'FRIAMOMM1 _ • •`ham• 4 _ Appendix C Wetland Data Sheets Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4123/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No ` ` Plot ID: 1 (If needed, explain on reverse side.) VEGETATION Species Present TREE STRATUM Total Cover: 2. i 3. 4. 5. 6. SAPLING/SHRUB STRATUM Total Cover., 60% 1. Rubus discolor 2. 3. 4. 5. 6. Status I Cover FACU 100% 7. % Percent of Dominant Species that are OBL, FACW, FAC: HYDROLOGY Dominant Species Species Present ❑ IVY STRATUM Total Cover. 1. 2. 3. HERB STRATUM Total Cover: 40 % 1. Phalaris arundinacea ❑ ❑ ❑ ® 2. 3. 4. ❑ 5. ❑ 6. ❑ 7. ❑ 8. ❑ F1 9. 10. i so -nno[ ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Other ❑ Saturated in Upper 12 inches ® No Recorded Data Available ❑ Water Marks ❑ Drift Lines Field Observations: ❑ Sediment Deposits Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 in. Remarks: no positive hydro indicators % Dominant Status Cover Species FACW 1 100% Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data ®FAC-Neutral Test ❑ Other (Explain in Remarks) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 1 (If needed, explain on reverse side.) VEGETATION Dominant Species Present Status Cover I Species TREE STRATUM Total Cover: % 1. % 2. % 3. % 4 % 5. % 6. % SAPLING/SHRUB STRATUM Total Cover 60% 1. Rubus discolor FACU 100% 2. 3. % 4. % 5. _ % 6. % 7. % Percent of Dominant Species that are OBL, FACW, FAC: HYDROLOGY ❑ Recorded Data (Describe in Remarks): ❑ Stream, Lake, or Tide Gauge ❑ Aerial Photographs ❑ Other ® No Recorded Data Available Field Observations: Depth of Surface Water 0 in. Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 in. Remarks: no positive hydro indicators Species Present IVY STRATUM Total Cover: _ 1. % Dominant Status Cover Species % 1 ❑ 2. 1 % I ❑ 3. 1 % I ❑ HERB STRATUM Total Cover: 40 % 1. Phalaris arundinacea FACW 100% 2. % ❑ 3. % ❑ 4. % ❑ 5. % ❑ 6. % ❑ 7. % ❑ 8. % ❑ 9. % ❑ 10. % I ❑ Wetland Hydrology Indicators: Primary Indicators: ❑ Inundated ❑ Saturated in Upper 12 inches ❑ Water Marks ❑ Drift Lines ❑ Sediment Deposits ❑ Drainage Patterns in Wetlands Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data ®FAC-Neutral Test ❑ Other (Explain in Remarks) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 2 (If needed, explain on reverse side.) VEGETATION Species Present Status % Cover Dominant Species % Species Present Status Cover Dominant Species TREE STRATUM Total Cover. 0% 1. % ❑ IVYSTRATUM Total Cover. 1. % ❑ 2. % ❑ 1 2. 1 % ❑ 3. % ❑ 3. 4. % HERB STRATUM Total Cover. 100% 1. Pholaris aruridinacea FACUV 1 100% 5• % ❑ 6. % ❑ SAPLING/SHRUB STRATUM Total Cover. 0% 1. % El 2. 1 °% ❑ 3. °% ❑ 4. %❑ 2. °I° ❑ 5. °I° ❑ 3. % I ❑ 6. °% ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 1 9. % ❑ 7. % ❑ I 10. °% ❑ Percent of Dominant Species that are OBL, FACW, FAC: 1 of 1=100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 inches ❑ Other ❑ Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ®FAC•Neutral Test ❑ Other (Explain In Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 In. Remarks: no positive hydro indicators SAILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Terric Medisaprists Plot ID:2 Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ❑ Yes ® No Profile Description Depth Matrix Mottle Colors Mottle (inches) Horizon (Munsell Moist) (Munsell Moist) _:;' Abundance/Contrast 0 to 18+ A 10YR 2/1 - - Texture, Concretions, Structure, etc. Silty clay loam Hydric Soil Indicators: ❑ Histosol ❑ Concretions ❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils ❑ Sulfidic Odor ❑ Organic Streaking In Sandy Soils ❑ Aqutic Moisture Regime ❑ Listed on Local Hydric Soils List ❑ Reducing Conditions ❑ Listed on National Hydric Soils List ❑ Gleyed or Low-Chroma Colors ❑ Other (Explain in Remarks) Remarks high amounts of sand in soil profile, likely due to floodplain adjacent to stream AI=TI Akin n=TFRMINATlnN Hydrophytic Vegetation Present? ® Yes ❑ No Wetiand Hydrology Present? ❑ Yes ® No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: no hydrology apparent despite darker soils and presence of reed canarygrass Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 3 (If needed, explain on reverse side.) VEGETATION Dominant % Dominant Species Present Status Cover Species Species Present Status Cover Species TREE STRATUM IVY STRATUM Total Cover. 0% Total Cover. 1. i % ❑ 1. % ❑ 2. % ❑ 2. % ❑ 3. % ❑ 3. °I° ❑ 4. % ❑ HERB STRATUM 5. % ❑ Total Cover. 100% 6. % ❑ 1. Phalaris arundinacea FACW 100% SAPLING/SHRUB STRATUM 2. % ❑ Total Cover. 0% 3. % ❑ 1. I % ❑ 4. % ❑ 2. % ❑ 5. % ❑ 3. °% ❑ 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. °% ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 1 of 1=100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): ❑ Stream, Lake, or Tide Gauge ❑ Aerial Photographs ❑ Other ® No Recorded Data Available Field Observations: Depth of Surface Water 0 in. Depth to Free Water in Pit >18 in. Depth to Saturated Soil: 10 in. Remarks: Wetland Hydrology Indicators: Primary Indicators: ❑ Inundated ® Saturated in Upper 12 inches ❑ Water Marks ❑ Drift Lines ❑ Sediment Deposits ❑ Drainage Patterns in Wetlands Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data ®FAC-Neutral Test ❑ Other (Explain in Remarks) Plot ID: 3 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Terric Medisaprists Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix (inches) Horizon .(Munsell Moist) Mottle Colors (Munsell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 18+ A 1 OYR 2/1 - - Clay loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ® Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ® ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks WFTI ONn nFTFRMINATION Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ® Yes ❑ No Remarks: Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 4 (If needed, explain on reverse side.) VEGETATION Species Present Status % Cover Dominant Species Species Present Status % Cover Dominant Species TREE STRATUM Total Cover. 0% 1. % ❑ IVY STRATUM Total Cover. 1. % I ❑ 2. 1 % ❑ 2. % I ❑ 3. % ❑ 3. % I ❑ 4. % HERB STRATUM Total Cover. 100% 1. Phalads arundinacea FACW 100% 5. % ❑ 6. % ❑ SAPLINGISHRt1B STRATUM Total Cover. 0% 1. I °% ❑ 2. % 3. % ❑ 4. % ❑ 2. °% ❑ 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. °% ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 1 of 1=100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots In Upper 12 inches ❑ Other ® Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ®FAC-Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit 14 in. Depth to Saturated Soil: 8 in. Remarks: Plot 11:3:4 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Terric Medisaprists Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ❑ Yes ® No Profile Description Depth Matrix (inches) Horizon (Mansell Moist) Mottle Colors (Mansell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 14 A 10YR 2/1 - Clay loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ® Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ® ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks WFTI ONn nFTFRMINATION Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ® Yes ❑ No Remarks: 11 Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 5 (If needed, explain on reverse side.) VEGETATION Species Present Status % Cover Dominant Species % Species Present Status Cover Dominant Species TREE STRATUM Total Cover. 0% 1. 1 % ❑ IVY STRATUM Total Cover. 1. % ❑ 2. % ❑ 2. % ❑ 3. % ❑ 3. % ❑ 4. % ❑ HERB STRATUM Total Cover. 0% 1. % ❑ 5. % ❑ 6. % ❑ SAPLING/SHRUB STRATUM Total Cover. 100% 1. Rubus discolor FACU 100% ® 2. % ❑ 3. % ❑ 4. % ❑ 2. % ❑ 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % ❑ 1 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 0 of 1= 0% HYDROLOGY ❑ Recorded Data (Describe in Remarks): ❑ Stream, Lake, or Tide Gauge ❑ Aerial Photographs ❑ Other ® No Recorded Data Available Field Observations: Depth of Surface Water 0 in. Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 in. Remarks: Wetland Hydrology Indicators: Primary Indicators: ❑ Inundated ❑ Saturated in Upper 12 inches ❑ Water Marks ❑ Drift Lines ❑ Sediment Deposits ❑ Drainage Patterns in Wetlands Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data ❑FAC-Neutral Test ❑ Other (Explain in Remarks) Plot ID: 5 F*ell1K Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Terric Medisaprists Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ❑ Yes ® No Profile Description Depth Matrix (inches) Horizon (Mansell Moist) Mottle Colors (Munsell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 14 A 1 OYR 5/1 5YR 5/6 Few/Distinct Clay loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ® Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ® ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks WFTI ANf] nFTFRMINATION Hydrophytic Vegetation Present? ❑ Yes ® No Wetland Hydrology Present? ❑ Yes ® No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: obvious break in topographic with changes in vegetation- upland plot Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetiand Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 6 (If needed, explain on reverse side.) VEGETATION % Species Present Status Cover Dominant Species Species Present Status % Dominant Cover Species TREE STRATUM Total Cover. 0% 1. %j ❑ IVY STRATUM Total Cover. 1. % ❑ 2. % ❑ 2. % I ❑ 3. % ❑ 3. % 1 ❑ 4. % ❑ HERB STRATUM Total Cover. 100% 1. Phalads anmdlnacea FACW 100% 5. % ❑ 6. % ❑ SAPLING/SHRUB STRATUM Total Cover. % 1. % ❑ 2. % ❑ 3. % ❑ 4. % ❑ 2. % ❑ 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % I ❑ 9. % ❑ 7. % ❑ 110. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 1 of 1=100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 inches ❑ Other ® Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ®FAC-Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit 15 in. Depth to Saturated Soil: 6 in. Remarks: Plot ID:6 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Terric Medisaprists Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ❑ Yes ® No Profile Description Depth Matrix (inches) (Munsell Moist) Mettle Colors (Munseli Moist) Mottle Texture, Concretions, Abundance/Contrast Structure, etc. 0 to 14 A 10YR 2/1 Clay loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ® Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ❑ ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks 1A/C7I Akin n MT=0U1K1AT1r)Kl \\V I VAS\V ✓ Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ® Yes ❑ No Remarks: C:\Users\Brian\Desktop\Revised data sheet.doc Data Form —Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: WSDOT Triangle Mitigation site- Corrington County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No i Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 7 (If needed, explain on reverse side.) VEGETATION % Dominant % Dominant Species Present Status Cover Species Species Present Status Cover Species TREE STRATUM IVY STRATUM Total Cover. % Total Cover. 1. % ❑ 1. % ❑ 2. % ❑ 2. °% ❑ 3. % ❑ 3 % I ❑ 4. % ❑ HERB STRATUM 5. % ❑ Total Cover. 50% 6. % ❑ 1. Phalads arundinacea FACW 30°% SAPLING/SHRUB STRATUM 2. Ranunculus re ens FAC 10% ❑ Total Cover. 50% 3. Holcus lanatus FAC 10% 1. Rubus discolor FACU 100% ® 4. A rostis ca illaris FAC 50°% 2. 1 % El 5. °% ❑ 3. % 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % I ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 2 of 3 = 67°% HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 inches ❑ Other ® Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ®FAC-Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit >18 in. Depth to Saturated Soil: 10 in. Remarks: Plot ID:7 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Terric Medisaprists Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix (inches) Horizon (Munsell Moist) Mottle Colors (Munsell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 14 A 10YR 2/1 Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ❑ Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ❑ ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks WFTI Amn DETERMINATION Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ® Yes ❑ No Remarks: 3 C:\Users\Brian\Desktop\data7. doe Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 8 (If needed, explain on reverse side.) VEGETATION % Dominant Species Present Status Cover Species Species Present Status % Dominant Cover Species TREE STRATUM Total Cover. % 1. % ❑ IVY STRATUM Total Cover. 1. % I ❑ 2. % ❑ 2. % ❑ 3. % F1 3. % 4. % 0 HERB STRATUM Total Cover. 90 % 1. Phalads arundinacea FACW 10% ❑ 5. % ❑ 6. % ❑ SAPLINGISHRUB STRATUM Total Cover. % 1. °k ❑ 2. A rostis ca illaris FAC 50% 3. Taraxacum officinale FACU 30% 4. % ❑ 2. 1 % El 5. % ❑ 3. % ❑ 6. 6k ❑ 4. % ❑ 7. 1 % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 1 of 2 = 50% HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 inches ❑ Other ❑ Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ❑FAC-Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 in. Remarks: Plot iD:8 enn c Map Unit Name (Series and Phase: Shalcar Muck- Sm Drainage Class: Very Poorly Taxonomy (Subgroup): Terric Medisaprists Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix (inches) Horizon (Munsell Moist) Mottle Colors (Munsell Moist) Mottle Texture, Concretions, AbundanceiContrast Structure, etc. 0 to 14 A 10YR 2/1 - Sandy loam Hydric Soil Indicators: ❑ Histosol ❑ Concretions ❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils ❑ Sulfidic Odor ❑ Organic Streaking in Sandy Soils ❑ Aqutic Moisture Regime ❑ Listed on Local Hydric Soils List ❑ Reducing Conditions ❑ Listed on National Hydric Soils List ❑ Gleyed or Low-Chroma Colors ❑ Other (Explain in Remarks) Remarks soil quite a bit more sandy, no hydro 1A/CTI AIUII n=TGRMINATInN Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ❑ Yes ® No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: despite dark soil, marginal plants and no hydro C:\Users\Brian\Desktop\data8.doc Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 9 (If needed, explain on reverse side.) VEGETATION Species Present Status Cover Dominant Species % Species Present Status Cover Dominant Species TREE STRATUM Total Cover. % 1, I % ❑ IVY STRATUM Total Cover. 1. % ❑ 2. % ❑ 2. % ❑ 3. % EJ 3. 4. % HERB STRATUM Total Cover. 90 % 1. Phalaris arundinacea FACW 20°/4 5. % ❑ 6. % ❑ SAPLINGISHRUB STRATUM Total Cover. % 1. I % ❑ 2. A ros2 ca illaris FAC 70% 3. % 4. % ❑ 2. % ❑ 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. 1 °% ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. 1 °/9 ❑ 7. % ❑ 10. 1 % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 2 of 2 =100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 inches ❑ Other ❑ Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ®FAC-Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 in. Remarks: Plat ID:9 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Terric Medisaprists Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix {inches) Horizon (Mansell Moist) Mottle Colors (Munsell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 14 A 10YR 212 Sandy loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ❑ Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ❑ ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks WFTI ANTI nl=TFRMINATInN Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ❑ Yes ® No Hydric Soils Present? ❑ Yes ® No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: brighter soil than sample plot 8 C:\Users\Brian\Desktop\data8.doe Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 10 (If needed, explain on reverse side.) VEGETATION % Dominant _ % Dominant Species Present Status Cover Species Species Present Status Cover Species TREE STRATUM IVY STRATUM Total Cover. % Total Cover. 1. % ❑ 1. % ❑ 2. % ❑ 2. % ❑ 3. % ❑ 3. % ❑ 4. % ❑ HERB STRATUM 5. % ❑ Total Cover. 90 % 6. % ❑ 1. Phalaris arundinacea FACW 10% ❑ SAPLING/SHRUB STRATUM 2. A mstis cWta6s FAC 50% Total Cover. % 3. Galium a an'ne FACW 10% ❑ 1. % ❑ 4. Utica dioica FAC 30% 2. % ❑ 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. 1 % El9. % ❑ 7. 1 % ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 2 of 2 =100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 inches ❑ Other ❑ Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ®FAC-Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 in. Remarks: Plot ID:10 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Drainage Class: Very Poorly Field Observations Taxonomy (Subgroup): Terric Medisaprists Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix Mottle Colors Mottle Texture, Concretions, - (inches) Horizon (Munsell Moist) (Munsell Moist) AbundancelContrast Structure, etc. 0 to 17 A 10YR 2/2 Sandy loam Hydric Soil Indicators: ❑ Histosol ❑ Concretions ❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils ❑ Sulfidic Odor ❑ Organic Streaking in Sandy Soils ❑ Aqutic Moisture Regime ❑ Listed on Local Hydric Soils List ❑ Reducing Conditions ❑ Listed on National Hydric Soils List ❑ Gleyed or Low-Chroma Colors ❑ Other (Explain in Remarks) Remarks wcTr Arun n=,rFRMINATInN Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ❑ Yes ® No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: high amounts of organic material similar to composted material- no hydrology Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 11 (If needed, explain on reverse side.) VEGETATION Species Present Dominant Status Cover Species Species Present Status % Cover Dominant Species TREE STRATUM Total Cover. % 1. %I ❑ IVY STRATUM Total Cover. 1. % ❑ 2• % ❑ 2. % I ❑ 3. % ❑ 3. % ❑ 4• % ElHERB STRATUM Total Cover. 100% 1. % ❑ 5. % 6. % SAPCINGISHRUBSTRATUM Total Cover. % 1. % ❑ 2. % ❑ 3. Phalans arundinacea FACW 100% 4. % ❑ 2. % ❑ 5. % ❑ 3. % ❑ 6. 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % ❑ J 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 1 of 1=100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 Inches ❑ Other ® Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ®FAC•Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit >18 in. Depth to Saturated Soil: 10 in. Remarks: Plot ID: II SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Terric Medisaprists Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ❑ Yes ® No Profile Description Depth Matrix (inches) Horizon (Mansell Moist) Mottle Colors (Munsell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 12 A 10YR 211 - Silty clay loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ® Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ❑ ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks WRTI ANP1 nI=TFRMINATIC)N Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetiand? ® Yes ❑ No Remarks: dramatic change in vegetation as well as hydrology Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 12 (If needed, explain on reverse side.) VEGETATION % Dominant % Dominant Species Present status Cover Species Species Present Status Cover Species TREE STRATUM IW STRATUM Total Cover. % Total Cover. 2. % ❑ 2. % I ❑ 3. % 1 ❑ 3. 1 % I ❑ 4. % HERB STRATUM 5. % Total Cover. 90 % 6. % I ❑ 1. Phalads arundinacea FACW 30% SAPLING/SHRUB STRATUM 2. A rostfs ca ilfads FAC 70% Total Cover. 10% 3. % ❑ I. S Eiaeadou lasif FACW 70% ® 4. % ❑ 2. Rubus s shills FAC, 30% 5. % 3. % I ❑ 6. % 1 ❑ 4. % 1 ❑ 7. % ❑ 5. % I ❑ 8. % ❑ 6. % I ❑ 9. % ❑ 7. % ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 3 of 4 = 75% [Ni 11 :is] 11191CYA ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 Inches ❑ Other ® Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ®FAC-Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit 10 in. Depth to Saturated Soil: 2 in. Remarks: Plot iD:12 �-1ell�1 Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Terric Medisaprists Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix (inches) Horizon (Munsell Moist) Mottle Colors (Munsell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 17 A 10YR 2/1 - - Sandy loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ® Gleyed or Low•Chroma Colors ❑ ❑ ❑ ❑ ❑ ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks WGTI ANr1 n1=T1=RMiNATInN Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ® Yes ❑ No Remarks: edge of pond - influenced by pond water levels, obvious wet bench Data Form - Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 13 (If needed, explain on reverse side.) VEGETATION % Species Present Status Cover TREE STRATUM Total Cover. % 1. fI % 2. % 3. % 4. % 5. % 6. % SAPtINGISHRUB STRATUM Total Cover. % 1. I % 2. % 3. % 4. % 5. % 6. % 7. % Percent of Dominant Species that are OBL, FACW, FAC: HYDROLOGY ❑ Recorded Data (Describe in Remarks): ❑ Stream, Lake, or Tide Gauge ❑ Aerial Photographs ❑ Other ® No Recorded Data Available Field Observations: Depth of Surface Water 0 in. Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 in. Remarks: Dominant Species Species Present ❑ IVY STRATUM Total Cover. 1. 2. 3. HERB STRATUM Total Cover. 90 % 1. Festuca arundinacea 2. 3. 4. 5. 6. ❑ ❑ FJ ❑ ❑ ❑ ❑ _❑ ❑ 7. ❑ 8. ❑ 9. 10. ❑ Wetland Hydrology Indicators: Primary Indicators: ❑ Inundated ❑ Saturated in Upper 12 inches ❑ Water Marks ❑ Drift Lines ❑ Sediment Deposits ❑ Drainage Patterns in Wetlands Dominant Status Cover i Species Q, �o °lo FAC- 100% °lo Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data ❑FAC-Neutral Test ❑ Other (Explain in Remarks) Plot ID:13 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Tenic Medisaprists Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix (inches) Horizon (Mansell Moist) Mottle Colors (Munsell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 17 A 1 OYR 2/1 - - Sandy loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ® Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ® ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks WGTI ANTI nF:TFRMINATInM Hydrophytic Vegetation Present? ❑ Yes ® No Wetland Hydrology Present? ❑ Yes ® No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: hydric soil but plot on higher ground above pond Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 14 (If needed, explain on reverse side.) VEGETATION % Dominant % Dominant Species Present Status Cover Species Species Present Status Cover Species TREE STRATUM IVY STRATUM Total Cover. % Total Cover: 1. % ❑ 1. °% 2. °% ❑ 2. % ❑ 3. % ❑ 3. 1 % I ❑ 4. % ❑_ HERB STRATUM 5. °% ❑ Total Cover. 100 6. % I EJ 1. Holcus lanatus FAC 70% SAPLJNGISHRUB STRATUM 2. Taroxacum offlcinale FACU 20% Total Cover. °% 3. Poa ralensis FAC 10% ❑ 1. % ❑ 4. % ❑ 2. % ❑ 5. °% ❑ 3. % ❑ 6. % ❑ 4. °% ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % 1 ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 1 of 2 = 5% HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 Inches ❑ Other ® Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ®FAC-Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit 15 in. Depth to Saturated Soil: 9 in. Remarks: Plot ID:14 PZTi71 C9 Map Unit Name (Series and Phase: Shalcar Muck- Sm Drainage Class: Very Poorly Taxonomy (Subgroup): Terric Medisaprists Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix (inches) Horizon (Mansell Moist) :'=Mottle Colors (Mansell Moist) ,,,,,..,a Texture, Concretions, Abundance/Contrast Structure, etc. 0 to 17 A 10YR 2/1 - Sandy loam Hydric Soil Indicators: ❑ Histosol ❑ Concretions ❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils ❑ Sulfidic Odor ❑ Organic Streaking in Sandy Soils ❑ Aqutic Moisture Regime ❑ Listed on Local Hydric Soils List ❑ Reducing Conditions ❑ Listed on National Hydric Soils List ® Gleyed or Low-Chroma Colors ❑ Other (Explain in Remarks) Remarks WETLAND DETERMINATION Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ® Yes ❑ No Remarks: fairly obvious vegetation patterns, slight topographic difference. wetland likely supported from subsurface water flow from adjacent slopes Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 15 (If needed, explain on reverse side.) VEGETATION Species Present Dominant Status Cover Species �« Species Present % Status Cover Dominant Species TREE STRATUM Total Cover. % 1. 1 % ❑ IVY STRATUM Total Cover. 1. % ❑ 2. % ❑ 2. % ❑ 3. % 11 3. 4. % ❑ HERB STRATUM Total Cover. 100 % 1. Holcus lanalus FAC 30% 5. % ❑ 6. % ❑ SAPLINGISHRUBSTRATUM Total Cover. % 1. I % ❑ 2. Taraxacumohicinate FACU 25% 3. Poa ratensls FAC 20% 4. Ranunculus re ens FACW 20% 2• 1 % ❑ 5. Jimcus effusus FACW 5% ❑ 3. 1 % ❑ 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % ❑ 10. °I° ❑ Percent of Dominant Species that are OBL, FACW, FAC: 3 of 4 = 75% HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 inches ❑ Other ❑ Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ❑FAC-Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 in. Remarks: Plot ID:15 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Drainage Class: Very Poorly Field Observations Taxonomy (Subgroup): Terric Medisapdsts Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix Mottle Colors Mottle Texture, Concretions, (inches) Horizon (Munseft Moist) (Munsell Moist) Abundance/Contrast Structure, etc. 0 to 17 A 10YR 2/2 Silty clay loam Hydric Soil Indicators: ❑ Histosol ❑ Concretions ❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils ❑ Sulfrdic Odor ❑ Organic Streaking in Sandy Soils ❑ Aqutic Moisture Regime ❑ Listed on Local Hydric Soils List ❑ Reducing Conditions ❑ Listed on National Hydric Soils List ❑ Gleyed or Low-Chroma Colors ❑ Other (Explain in Remarks) Remarks WETLAND DETERMINATION Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ❑ Yes ® No Hydric Soils Present? ❑ Yes ® No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 16 (If needed, explain on reverse side.) VEGETATION % Dominant Species Present Status Cover Species Species Present Status % Dominant Cover Species TREE STRATUM Total Cover. % 1. I % ❑ 1W STRATUM Total Cover. 1 % ❑ 2. % ❑ 2. % ❑ 3. % ❑ 3. % ❑ 4• % ❑ HERB STRATUM Total Cover. 100 % 1. Holcus lanatus FAC 50% 5. % ❑ 6• % ❑ SAPLfNGISHRUS STRATUM Total Cover. % 1. % ❑ 2. Taraxacum otFicinale FACU 10% ❑ 3. Juncus effusus FACW 20% 4. Ranunculus re ens FACW 30% 2. % ❑ 1 5. % ❑ 3. %n ❑ 6. % ❑ 4. % El 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 3 of 3 =100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 inches ❑ Other ® Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ®FAC-Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit 17 in. Depth to Saturated Soil: 4 in. Remarks: Plot ID:16 Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Terric Medisaprists Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix (inches) Horizon (Mansell Moist) Mottle Colors (Muns"ell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 17 A 10YR 2/1 - Silty clay loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ® Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ® ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks WFTI ANn DETERMINATION Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ® Yes ❑ No Remarks: Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 17 (If needed, explain on reverse side.) VEGETATION Species Present Status % Dominant Cover Species Species Present Status % Dominant Cover Species TREE STRATUM Total Cover. % I. I % ❑ IVY STRATUM Total Cover. 1. % ❑ 2. % ❑ 2. % I ❑ 3. % ❑ 3. °� ❑ 4. % ❑ HERB STRATUM Total Cover. 100 % 1. Holcus lanatus FAC 50% 5. % ❑ 6. % I ❑ SAPLINGISHROB STRATUM Total Cover. % 1. I % ❑ 2. Taraxacum ofrclnale FACU 20% 3. % ❑ 4. Ranunculus re ens FACW 30% 2. % ❑ 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 2 of 3 = 67% HYDROLOGY ❑ Recorded Data (Describe in Remarks): ❑ Stream, Lake, or Tide Gauge ❑ Aerial Photographs ❑ Other ® No Recorded Data Available Field Observations: Depth of Surface Water 0 in. Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 in. Remarks: Wetland Hydrology Indicators: Primary Indicators: ❑ Inundated ❑ Saturated in Upper 12 inches ❑ Water Marks ❑ Drift Lines ❑ Sediment Deposits ❑ Drainage Patterns in Wetlands Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data ®FAC-Neutral Test ❑ Other (Explain in Remarks) Plot ID:17 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Terric Medisaprists Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix (inches) Horizon (Munseil Moist) Mottle Colors (Mansell Moist) Mottle . Texture, Concretions, AbundancelContrast Structure, etc. 0 to 14 A 10YR 313 - - Silty clay loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ❑ Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ❑ ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks WFTI ANTI nF:TFRMINATInN Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ❑ Yes ® No Hydric Soils Present? ❑ Yes ® No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 18 (If needed, explain on reverse side.) VEGETATION % Species Present Status Cover Dominant Species Species Present Status % Dominant Cover Species TREE STRATUM Total Cover. % 1. % ❑ IVY STRATUM Total Cover. 1. % I ❑ 2. % ❑ 2. % ❑ 3. % ❑ 3. % ❑ 4. % HERB STRATUM Total Cover. 70% 1. Phalads arundinacea FACW 100% 5. % ❑ 6. % ❑ SAPLINGISHRUS STRATUM Total Cover. % 1. % ❑ 2. % 3. % ❑ 4. % ❑ 2. % ❑ 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. o1a ❑ 7. % I D 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 1 of 1=100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): ❑ Stream, Lake, or Tide Gauge ❑ Aerial Photographs ❑ Other ® No Recorded Data Available Field Observations: Depth of Surface Water 0 in. Depth to Free Water in Pit 12 in. Depth to Saturated Soil: Surface in. Remarks: Wetland Hydrology Indicators: Primary Indicators: ❑ Inundated ® Saturated in Upper 12 inches ❑ Water Marks ❑ Drift Lines ❑ Sediment Deposits ❑ Drainage Patterns in Wetlands Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data ®FAC-Neutral Test ❑ Other (Explain in Remarks) Plot ID:18 SOILS Map Unit Name (Series and Phase: Bellingham Silt Loam- Bh Taxonomy (Subgroup): Vertic Endoaquepts Drainage Class: Poorly Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix Mottle Colors (inches) Horizon (Munsell Moist) (Munsell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 14 A 10YR 3/2 10YR 5/6 Common/Distinct Silt loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ® Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ❑ ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks WFTI ANTI n1=TFRMINATIC)N Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ® Yes ❑ No Remarks: Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Bieger State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 19 (If needed, explain on reverse side.) VEGETATION Species Present 1 Status % Dominant Cover Species Species Present Status % I Dominant Cover I Species TREE STRATUM Total Cover. % 1. % ❑ IVY STRATUM Total Cover. 1. % ❑ 2. % 1 ❑ 2. % 1 ❑ 3. % ❑ 3. % 1 ❑ 4. % ❑ HERB STRATUM Total Cover. 70% 1. Holcus lanatus FAC 500% 5. % ❑ 6. % I ❑ SAPLINGISHRUB STRATUM Total Cover. % 1. % ❑ 2. Taraxacum officinale FACU 20% 3. Phalaris arundinacea FACW 10% ❑ 4. Ranunculus re ens FACW 20% 2. % ❑ 5. % ❑ 3. % ❑ 6. % El 1 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % I ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 2 of 3 = 67% HYDROLOGY Plot ID:19 Pre7I16-1 Map Unit Name (Series and Phase: Bellingham Silt Loam- Bh Taxonomy (Subgroup): Vertic Endoaquepts Drainage Class: Poorly Field Observations Confirm Mapped Type? ❑ Yes ® No Profile Description Depth Matrix Mottle Colors (Inches) Horizon (Munsell Moist) (Munsell Moist) Mottle Texture, Concretions, Abundance/Contrast Structure, etc. 0 to 14 A 10YR 3/3 Gravelly clay loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aqutic Moisture Regime ❑ Reducing Conditions ❑ Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ❑ ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks WGTI ANrI n1=T9=RMINATInN Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ❑ Yes ® No Hydric Soils Present? ❑ Yes ® No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: upland soils, high gravel content- disturbed Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Cary State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 20 (If needed, explain on reverse side.) VEGETATION % Dominant % Dominant Species Present Status Cover Species Species Present Status Cover Species TREE STRATUM IVY STRATUM Total Cover. 30% Total Cover. 1. Pseudotsu a menriesPi FACU 100% ® 1. % ❑ 2. % ❑ 1 2. % I ❑ 3. % ❑ 3. % I❑ 4. % ❑ HERB STRATUM 5. % ❑ Total Cover. 80 6. % 1. Holcus lanatus FAC 60% SAPLINGISHRUS STRATUM 2. E uiselum arvense FAC 20% Total Cover. 25% 3. Carexobnu la OBL 20% 1. Ruhus discolor FACU 60% 0 4. % ❑ 2. Salix scoulerane FAC 40% ® 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % ❑ 10. 1 % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 4 of 6 = 67% wetland v etation HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 Inches ❑ Other ❑ Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ®FAC-Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 in. Remarks: Plot ID:20 SOILS Map Unit Name (Series and Phase: Bellingham Silt Loam- Bh Drainage Class: Poorly Field Observations Taxonomy (Subgroup): Vertic Endoaquepts Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix Mottle Colors Mottle Texture, Concretions, (inches) Horizon (Munsell Moist) (Mansell Moist) AbundancelContrast Structure, etc. 0 to 16 A 10YR 2/1 - Silt loam Hydric Soil Indicators: ❑ Histosol ❑ Concretions ❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils ❑ Sulfidic Odor ❑ Organic Streaking in Sandy Soils ❑ Aqutic Moisture Regime ❑ Listed on Local Hydric Soils List ❑ Reducing Conditions ❑ Listed on National Hydric Soils List ® Gleyed or Low-Chroma Colors ❑ Other (Explain in Remarks) Remarks highly organic 1A/C71 AK1r% r1CT1=0U1MATlr11U Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ❑ Yes ® No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: Sample plot adjacent to pond Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Cary State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 21 (If needed, explain on reverse side.) VEGETATION % Dominant I % Dominant Species Present + Status Cover Species I Species Present Status Cover Species TREE STRATUM IVY STRATUM Total Cover. % Total Cover. 1. 1 % ❑ 1. % ❑ 2. % ❑ 2. % 1 ❑ 3. % ❑ 3. %1 ❑ 4. % ❑ HERB STRATUM 5. % ❑ Total Cover. 100 6. % I ❑ 1. Hokus lanatus FAC 70% SAPLINGISHRUB STRATUM 2. Carex obnu fa OBL 20% Total Cover. % 3. % ❑ 1. I % ❑ 4. % ❑ 2. % ❑ 5. % ❑ 3. % 1 ❑ 6. % ❑ 4. % ❑ 7. % El 5. % ❑ 8. % I ❑ 6. % ❑ 9. % El7. % ❑ 10. % 1 ❑ Percent of Dominant Species that are OBL, FACW, FAC: 2 of 2 =100% wetland vegetalion HYDROLOGY ❑ Recorded Data (Describe in Remarks): ❑ Stream, Lake, or Tide Gauge ❑ Aerial Photographs ❑ Other ® No Recorded Data Available Field Observations: Depth of Surface Water 0 in. Depth to Free Water in Pit 16 in. Depth to Saturated Soil: 1 in. Remarks: Wetland Hydrology Indicators: Primary Indicators: ❑ Inundated ® Saturated in Upper 12 inches ❑ Water Marks ❑ Drift Lines ❑ Sediment Deposits ❑ Drainage Patterns in Wetlands Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data ®FAC-Neutral Test ❑ Other (Explain in Remarks) Plot 0:21 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Drainage Class: Very Poorly Taxonomy (Subgroup): Terric Medisaprists Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix (inches) Horizon (Munsell Moist) Mottle Colors (Munsell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc- 0 to 16 A 10YR 2/1 Clay loam Hydric Soil Indicators: ❑ Histosol ❑ Concretions ❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils ❑ Sulfidic Odor ❑ Organic Streaking in Sandy Soils ❑ Aqutic Moisture Regime ❑ Listed on Local Hydric Soils List ❑ Reducing Conditions ❑ Listed on National Hydric Soils List ® Gleyed or Low-Chroma Colors ❑ Other (Explain in Remarks) Remarks highly organic, less silt more clay WFTI AAlil n1=TFRMINOTInN Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ® Yes ❑ No Remarks: Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4/23/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Cary State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 22 (If needed, explain on reverse side.) VEGETATION Dominant % Dominant Species Present Status Cover Species Species Present Status Cover I Species TREE STRATUM IVY STRATUM Total Cover. % Total Cover. 1. %I ❑ 1. % ❑ 2. % ❑ 2. % I ❑ 3. % ❑ 3. 4. % ❑ HERB STRATUM 5. % ❑ Total Cover. 100 6. 1 % ❑ 1. Holcus lanatus FAC 40% SAPtINGISHRUB STRATUM 2. Ranunculus repens FACW 30% Total Cover. % 3. Taramcum officinale FACU 25% 1. 1 % ❑ 4. % ❑ 2. % ❑ 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 2 of 3 = 67% wetland v elation HYDROLOGY ❑ Recorded Data (Describe in Remarks): ❑ Stream, Lake, or Tide Gauge ❑ Aerial Photographs ❑ Other ® No Recorded Data Available Field Observations: Depth of Surface Water 0 in. Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 in. Remarks: no Primary indicators of hydrology Wetland Hydrology Indicators: Primary Indicators: ❑ Inundated ❑ Saturated in Upper 12 inches ❑ Water Marks ❑ Drift Lines ❑ Sediment Deposits ❑ Drainage Patterns in Wetlands Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data ®FAC-Neutral Test ❑ Other (Explain in Remarks) Plot ID:22 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Drainage Class: Very Poorly Field Observations Taxonomy (Subgroup): Tenic Medisaprists Confirm Mapped Type? ❑ Yes ® No Profile Description Depth Matrix Mottle Colors (inches) Horizon (Mansell Moist) (Mansell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 5 A 10YR 2/2 - Sandy loam 5 to 8 A 10YR 2/1 - 8 to 16 A 10YR 4/3 Hydric Soil Indicators: ❑ Histosol ❑ Concretions ❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils ❑ Sulfidic Odor ❑ Organic Streaking in Sandy Soils ❑ Aqutic Moisture Regime ❑ Listed on Local Hydric Soils List ❑ Reducing Conditions ❑ Listed on National Hydric Soils List ❑ Gleyed or Low-Chroma Colors ❑ Other (Explain in Remarks) Remarks very sandy soil, obvious fill associated with construction of garage WFTI ONn nFTFRMINATION Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ❑ Yes ® No Hydric Soils Present? ❑ Yes ® No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4123108 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Cary State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes N No Transect ID: Is the area a potential Problem Area? ❑ Yes N No Plot ID: 23 (If needed, explain on reverse side.) VEGETATION Species Present FStatus Cover Dominant Species Species Present Status % Dominant Cover Species TREE STRATUM Total Cover. % 1. % ® IVY STRATUM Total Cover. 1. % I ❑ 2. % 2. % ❑ 3. % ❑ 3. % I❑ 4. % ❑ HERB STRATUM Total Cover. 100 1. Ranunculus re ens FACW 25% 5. % ❑ 6. %.L ❑ SAPLING/SHRUB STRATUM Total Cover. % 1. I % ❑ 2. Taramcum offidnaJe FACU 25% 3. Agmsfis ca Illarrs FAC 25% 4. Holcus lanatus FAC 25% 2. % ❑ 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 4 of 4 =100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): ❑ Stream, Lake, or Tide Gauge ❑ Aerial Photographs ❑ Other N No Recorded Data Available Field Observations: Depth of Surface Water 0 in. Depth to Free Water in Pit 8 in. Depth to Saturated Soil: Surface in. Remarks: Wetland Hydrology Indicators: Primary Indicators: ❑ Inundated ® Saturated in Upper 12 inches ❑ Water Marks ❑ Drift Lines ❑ Sediment Deposits ❑ Drainage Patterns in Wetlands Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data NFAC-Neutral Test ❑ Other (Explain in Remarks) Plot ID: 23 F*a7i�I Map Unit Name (Series and Phase: Shalcar Muck- Sm Taxonomy (Subgroup): Terric Medisaprists Drainage Class: Very Poorly Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix (inches) Horizon (Munsell Moist) Mottle Colors (Mvnseii Moist) Mottle Texture, Concretions, Abundance/Contrast Structure, etc. 0 to 16 A 10YR 2/1 - Silt loam Hydric Soil Indicators: ❑ Histosol ❑ Histic Epipedon ❑ Sulfidic Odor ❑ Aclutic Moisture Regime ❑ Reducing Conditions �1Z Gleyed or Low-Chroma Colors ❑ ❑ ❑ ❑ ® ❑ Concretions High Organic Content in Surface Layer in Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (Explain in Remarks) Remarks Wr-TI eNn nFTFRMINATION Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ® Yes ❑ No Remarks: native soil, end of garage fill Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4123108 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Cary State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 24 (If needed, explain on reverse side.) VEGETATION % Dominant Species Present Status Cover Species Species Present [status I % Cover I Dominant I Species TREE STRATUM Total Cover. 100% 1. Alnus rubra FAC 100% ® IW STRATUM Total Cover. 1. % ❑ 2. % ❑ 2. % I ❑ 3. % ❑ 3. 4. % ❑ HERB STRATUM Total Cover. 75 1. A rostis ca illads FAC 50% 5. o� ❑ 6. % ❑ SAPLING/SHRUB STRATUM Total Cover. 25% 1. Rubus discolor FACU 100% ® 2. Holcus Ianalys FAC 50% 3. % ❑ 4. % ❑ 2. 1 % ❑ 5. % ❑ 3. % 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. 1 % ❑ 9. % ❑ 7. j % ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 3 of 4 = 75% JUDIZ%111111GICTA ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: Secondary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Oxidized Roots in Upper 12 inches ❑ Other ❑ Saturated in Upper 12 inches ❑ Water -Stained Leaves ® No Recorded Data Available ❑ Water Marks ❑ Local Soil Survey Data ❑ Drift Lines ❑ Sediment Deposits ®FAC-Neutral Test ❑ Other (Explain in Remarks) Field Observations: Depth of Surface Water 0 in. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit >18 in. Depth to Saturated Soil: >12 in. Remarks: Plot ID: 24 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Drainage Class: Very Poorly Field Observations Taxonomy (Subgroup): Terric Medisaprists Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix (inches) Horizon (Munsell Moist) Mottle Colors (Munsell Moist) Mottle Texture, Concretions, Abundance/Contraist Structure, etc. 0 to 12 A 10YR 2/2 - Sandy loam 12 A 2.5YR 4/5 - Sandy loam to 16 Hydric Soil Indicators: ❑ Histosol ❑ Concretions ❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils ❑ Sulfidic Odor ❑ Organic Streaking in Sandy Soils ❑ Aclutic Moisture Regime ❑ Listed on Local Hydric Soils List ❑ Reducing Conditions ® Listed on National Hydric Soils List ❑ Gleyed or Low-Chroma Colors ❑ Other (Explain in Remarks) Remarks UU=T1 Amn nPTFRMINATInN Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ❑ Yes ® No Hydric Soils Present? ❑ Yes ® No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine IfWetiand Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4123/08 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Cary State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 25 (If needed, explain on reverse side.) VEGETATION Species Present Status % Cover Dominant Species Species Present Status % Cover Dominant Species TREE STRATUM Total Cover. % 1. % ❑ IW STRATUM Total Cover. 1. % ❑ 2. % ❑ 2. % ❑ 3. % ❑ 3. % ❑ 4. % ❑ HERB STRATUM Total Cover. 75 1. A rostis ca illads FAC 35% 5. % ❑ 6. % ❑ SAPLING/SHRUB STRATUM Total Cover. % 1. % ❑ 2. Holcus lanatus FAC 40% 3. Ranunculus re ens FACW 25% 4. % ❑ 2. % ❑ 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. % 5. % ❑ 8. % ❑ 6. % ❑ 9. % ❑ 7. % ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 3 of 3 =100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): ❑ Stream, Lake, or Tide Gauge ❑ Aerial Photographs ❑ Other ® No Recorded Data Available Field Observations: Depth of Surface Water 0 in. Depth to Free Water in Pit 6 in. Depth to Saturated Soil: Surface in. Remarks: Wetland Hydrology Indicators: Primary Indicators: ❑ Inundated ® Saturated in Upper 12 inches ❑ Water Marks ❑ Drift Lines ❑ Sediment Deposits ❑ Drainage Patterns in Wetlands Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data ®FAC-Neutral Test ❑ Other (Explain in Remarks) Plot ID: 25 SOILS Map Unit Name (Series and Phase: Shalcar Muck- Sm Drainage Class: Very Poorly Field Observations Taxonomy (Subgroup): Terric Medisaprists Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix Mottle Colors Mottle Texture, Concretions, (inches) Horizon (Munsell Moist) (Munsell Moist) AbundancelContrast Structure, etc. 0 to 16 A 10YR 2/1 - Sandy loam Hydric Soil Indicators: ❑ Histosol ❑ Concretions ❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils ❑ Sulfidic Odor ❑ Organic Streaking in Sandy Soils ❑ Aclutic Moisture Regime ❑ Listed on Local Hydric Soils List ❑ Reducing Conditions ® Listed on National Hydric Soils List ❑ Gleyed or Low-Chroma Colors ❑ Other (Explain in Remarks) Remarks high organic content in silt loam soil WETLAND DETERMINATION Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ElNo Is this Sampling Point Within a Wetland? ® Yes ❑ No Remarks: I I I J Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4123108 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Cary State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 26 (If needed, explain on reverse side.) VEGETATION Species Present Status Dominant Cover Species Species Present Status % Cover Dominant Species TREE STRATUM Total Cover. 50% 1. A1nus rubra FAC 100% ® IVY STRATUM Total Cover. 1. % ❑ 2. % ❑ 2. % ❑ 3. % 3. % ❑ 4• % ❑ HERB STRATUM Total Cover. 50% 1. Ranunculus reWs FACW 100% 5. % ❑ 6. % I ❑ SAPLINGISHRUB STRATUM Total Cover. 40% 1. Rubus s ectahilis FAC, 100% 2. % ❑ 3. 3 ❑ 4. % ❑ 2. % 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % EJ 9. % ❑ 7. % ❑ 10._ % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 3 of 3 =100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): ❑ Stream, Lake, or Tide Gauge ❑ Aerial Photographs ❑ Other ® No Recorded Data Available Field Observations: Depth of Surface Water 0 in. Depth to Free Water in Pit 2 in. Depth to Saturated Soil: Surface in. Remarks: Wetland Hydrology Indicators: Primary Indicators: ❑ Inundated ER Saturated in Upper 12 inches ❑ Water Marks ❑ Drift Lines ❑ Sediment Deposits ❑ Drainage Patterns in Wetlands Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data ®FAC-Neutral Test ❑ Other (Explain in Remarks) Plot ID: 26 SOILS Map Unit Name (Series and Phase: Bellingham Silt Loam- Bh Drainage Class: Poorly Field Observations Taxonomy (Subgroup): Vertic Endoaquepts Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix Mottle Colors (inches) Horizon (Munsell Moist) (Munsell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 6 A 10YR 3/2 - Sandy loam 6 to 16 A 10YR 2/1 Sandy loam Hydric Soil Indicators: ❑ Histosol ❑ Concretions ❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils ❑ Sulfidic Odor ❑ Organic Streaking in Sandy Soils ❑ Aqutic Moisture Regime ❑ Listed on Local Hydric Soils List ❑ Reducing Conditions ❑ Listed on National Hydric Soils List ® Gleyed or Low-Chroma Colors ❑ Other (Explain In Remarks) Remarks gravel and pebbles in lower soil profile WETLAND DETERMINATION Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ® Yes ❑ No Hydric Soils Present? ® Yes ❑ No Is this Sampling Point Within a Wetland? ® Yes ❑ No Remarks: obvious wetland that extends off of property Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Routine Wetland Determination Data Form (1987 COE Wetlands Delineation Manual) Project/Site: WSDOT Triangle Mitigation site- Corrington Date: 4123108 Applicant/Owner: Washington State Dept. of Transportation County: King Investigator: Cary State: WA Do Normal Circumstances exist on the site? ® Yes ❑ No Community ID: Is the site significantly disturbed (Atypical Situation)? ❑ Yes ® No Transect ID: Is the area a potential Problem Area? ❑ Yes ® No Plot ID: 27 (If needed, explain on reverse side.) VEGETATION Species Present % i Dominant Status Cover Species Species Present Status % Cover Dominant Species TREE STRATUM Total Cover. % 1. % ❑ IVY STRATUM Total Cover. 1. % ❑ 2. % ❑ 2. % ❑ 3. % ❑ 3. % ❑ 4. % ❑ HERB STRATUM Total Cover. 100% 1. Ranunculus repens FACW 10% ❑ 5. % ❑ 6. °Io ❑ SAPLING/SHRUB STRATUM Total Cover. % 1. % ❑ 2. Poa s . FAG 80% 3. Taraxacam ofrcinale FACU 10% ❑ 4. % ❑ 2. % ❑ 5. % ❑ 3. % ❑ 6. % ❑ 4. % ❑ 7. % ❑ 5. % ❑ 8. % ❑ 6. % ❑ 9. °lo ❑ 7. % ❑ 10. % ❑ Percent of Dominant Species that are OBL, FACW, FAC: 1 of 1=100% HYDROLOGY ❑ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators: ❑ Stream, Lake, or Tide Gauge Primary Indicators: ❑ Aerial Photographs ❑ Inundated ❑ Other ❑ Saturated in Upper 12 inches ® No Recorded Data Available ❑ Water Marks ❑ Drift Lines Field Observations: ❑ Sediment Deposits Depth of Surface Water 0 In. ❑ Drainage Patterns in Wetlands Depth to Free Water in Pit 16 in. Depth to Saturated Soil: >12 in. Remarks: Secondary Indicators: ❑ Oxidized Roots in Upper 12 inches ❑ Water -Stained Leaves ❑ Local Soil Survey Data ®FAC•Neutral Test ❑ Other (Explain in Remarks) Plot ID: 27 SOILS Map Unit Name (Series and Phase: Bellingham Silt Loam- Bh Drainage Class: Poorly Taxonomy (Subgroup): Vertic Endoaquepts Field Observations Confirm Mapped Type? ® Yes ❑ No Profile Description Depth Matrix Mottle Colors (inches) Horizon RMunsell Moist) (Munsell Moist) Mottle Texture, Concretions, AbundancelContrast Structure, etc. 0 to 16 A 10YR 3/2 - Sandy loam - - Sandy loam Hydric Soil Indicators: ❑ Histosol ❑ Concretions ❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils ❑ Sulfidic Odor ❑ Organic Streaking in Sandy Soils ❑ Aqutic Moisture Regime ❑ Listed on Local Hydric Soils List ❑ Reducing Conditions ❑ Listed on National Hydric Soils List ❑ Gleyed or Low-Chroma Colors ❑ Other (Explain in Remarks) Remarks WFTI ONII nl:TFRMINATION Hydrophytic Vegetation Present? ® Yes ❑ No Wetland Hydrology Present? ❑ Yes ® No Hydric Soils Present? ❑ Yes ® No Is this Sampling Point Within a Wetland? ❑ Yes ® No Remarks: obvious break in slope --upland plot Data Form — Routine Wetland Determination Page 2 (1987 COE Wetlands Delineation Manual) Draft Wetland Mitigation Plan 1-5 - SR 161/SR 18 Triangle Improvements Project Washington State Department of Transportation Appendix D Mitigation Site Plan Sheets Draft Wetland Mitigation Plan 1-5 - SR 161/SR 1S Triangle Improvements Project Washington State Department of Transportation Appendix E Wetland Rating Form for Anticipated Conditions of Mitigation Site at End of Monitoring -(9661'aOD) sanlrA puE suogaun3 purllaM zo3;uauialddnS looq>IioM ASolopog;aW XL'm'121H agl uioz3 pa;drpy -►��v�- .nd off,. ��� -c� � r� n. � v { JN-4G+" -;t) ('alEuor}r.I mOX alr1S) 'aplAoad of ,CIwItl lou io ,�Ixl i 3va fs Q/4 ��c tp z --.z (aluuotlri mox alr1S) •aptAoid of AlON!l lou -10 Aloln OZ N•purpam ui luasaid air slisodap luaunpoS 9 Apuullom oql ui sm000 lol-em jo Suipuod •S 'pIIrlJOAN III g2Ig Si I31rM PIIE uOIJUjaSOA JO uoisndsSalul • j7 Ajuasoid si UO11ula2DA snoaougiaq osuo(I £ •pIIEIIaM aql ul luosaid air auligEq zalumdaap E so/puE ialEm OuiAOUI-MOTS 'Z N -pur pom agl3o luaipLjSdn lumaid am (uo[lon.ilsuoo zo aDullll uzol]) luouiipas ssaoxa jo soomoS 'I IenoucaH luatulpaS •g L mod IauuEgo uEgl iaglrl MOIJ hags su auioo sJalrmpooi3 'L asmoo ialEm luaoufpE uE IUOtg 131Empooll saAtaaai puEllaAk 'g /V 'uOTIVIOSaA APOOM asuap suq puuilaM 'S N•sugap palpol ao/pue `slum Iral¢ `slanal ialem �u31¢nlonll ]o sugis gltm lallno paloLusuoo suq purllam `giino.tgpmoU jI 't7 uiolsfs (ILuoissaadop) pasolo E s[ pulelloAk £ •suoilipuoo IlujutEz Iuuuou npun will `sluana uzzols Suunp zalEM ]o saumlOA iaq Tq $uTUlElaz ].o olgrdEo st pur rair JBU XI.IAilrla.i E ut st puEllaM 'Z /V -pags.ialum sll jo uoi:pod iaddn aql ui sm000 puEllo,YA 'I (uO►lurtuoigouxsaQ pur aDEzolS) uouuaalld Mold poold 'd :Istfololg L'o, �� _ w p1l :ZIUUN purllaM uopuzpapu.�ug3 tdg s�.LOQSAt — tuJ0A uILM piai3 suo�aun3 puui;aAA '(966I 'a0D) sanlrA pue suoyaun3 puellaM zo; luauzalddnS xoogxzoM A2olopoglajN kemij rIH aql uzozy paldrpd pagsnU sT mu uT oiut,Dzo goigM Tuoij lallno srq PupllaAl •9 UOSEM DuIMoiD aql,3uunp luaAO JVUOSraS r si OuTPOOU Imp S.IOIBOTpui srq io palupunui si puEllaM s . '?5�}.�? 1. � � •i. *w,cJ� �/ w:JY�G� — 1 puEl;aM uT I12Iq sI IaJEM puE UOIIMZ20A JO uoisndsiolul •17 ' •luosa.Td `,4lTsuop ssougo►i sands puE `a.irTlonils uogE133aA ,,4tununuoo;urld jo aa.i2ap gBIH '£ •snonptoap ,CllsoTu an puEllaM utluuld KpooM 'Z z •UOljUjQ2aA snoaOE Ia aSua O lOAOO t,alr u q q P.� I /00£ lsral lE sEq purllaM 'I (a;iruoltEs snOA alms) •apinoid of A1xiil lou io XIOT-1 laodxj sai puE .ialltN aiuu&ip 3o um.4anpo zd •� 0 ��/c"�"�/�'Sl�� z u011E1009A asuap slgl jo uEd oslE on, sluana pool} OAISOla PUUISgliM of algr sgrugs put, saaiZ •£ I !`li3L� t✓Z1 -f �Cr, /,w� w l /� UOTIVIORM asuap siq; jo yTEd sT ioXul snoaoegIaq d 'Z ' VO!5Oj -2` IY UOISO.ID JO OOuapiAZ Ou puE asdnoa IOIEM Oqj Duuapaoq uoillopZM Duigaosqu an= `asuap seq puEl;aM 'i aurjaToys ao asrnoo ialvm gli,.K pwz�loossv fj (•alruoilri .ino,C alt,ls) •aplAo.Id of /,lo3lil lou io Xjay7 uoi4uzlllgcjS autla.iouS puu lo.IauoD uoisoig •Q iv •purllaM aql uT luasazd azE silos mut,D10 to IEiauitu paumB-aura 'S A•TloilrlaDaA snoaorgiaq p aV 06 L� .��?J? �'� , 1s f3v�G asuap aA11 JO lanoo lra.Tt, %0£ lsral lr SEg purllaM 'l, 'UOTIuajZP ouol '£ 30JEM JOJ uOTIEmp sopiAoid purpoM IN lam, J •uosuas DuiMoB oql DuT.Inp Juana lEuoSeaS r SI Oulpoogjugl siopoTpui SEq 7o palepimu! ST Put'POAA, Z ��� >a��('arj' ►+� yr 7. y? y�v,! I %v•putllaM aql I jo j=ipuiOdn luosoid air (sjlgow KAEaq puE sop►mIsad) (aluuotlui.inoX oj%) sluroixol put, (simpliaj) sluaulnu ssaoxa jo saomog •l •OPiAo.id of A103lil lou so xlz)T-I JEAoulag;nEJixOjL puE;ual.ilnN •D IZ 25 N. Uniqueness and Heritage © Wetland contains documented occurrence of a state — or federally listed threatened or endangered species. 2. Wetland contains documented critical habitat, high quality ecosystems, or priority species respectively designated by the U.S. Fish and Wildlife Service, the WDNR's Natural Heritage Program, or WDFW's Priority Habitats and Species Program. wo 3. Wetland is part of a National Natural Landmark designated by the National Park Service or a Natural Heritage Site designated by WDNR. ,t/v 4. Wetland has biological, geological, or other features that are determined rare by the local jurisdiction. V,, 5. Wetland has been determined significant by the local jurisdiction because it provides functions scarce for the area. /a ' 6. Wetland is part of ... NO ➢ an estuary, ➢ a bog, ➢ a mature forest. Likely or not likely to provide. (State your rationale.) // OPP r 41141� r * Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). 6. Wetland contains invertebrates, amphibians, and/or fish. 7, Buffer contains relatively undisturbed grassland shrub and/or forest habitats. 8. Lands within 1 km (0.6 mi) of the wetland are greater than or equal to 40% undeveloped (e.g., green belts, forest, grassland, agricultural). K. General Fish Habitat (Must be associated with a fish -bearing water.) 1. Wetland has a perennial or intermittent surface -water connection to a fish -bearing water body y j 2. Wetland has sufficient size and depth of open water so as not to freeze completely during winter. Y_-Cf 3. Observation of fish. 411l� 4. Herbaceous and/or woody vegetation is present in wetland and/or buffer,5 provide cover, shade, and/or detrital matter. 5. Spawning areas are present (aquatic vegetation and/or gravel beds). A,,o L. Native Plant Richness 1. Dominant and codominant plants are native. yts 2. Wetland contains two or more Cowardin Classes. 3. Wetland has three or more strata of vegetation. ( _d AIL)/ 4. Wetland has mature trees. M. Educational or Scientific Value 1. Site has documented scientific or educational use. 2. Wetland is in public ownership. Y_s 3. Parking at site is suitable for a school bus�v 24 Likely or not likely to provide. (State your rationale.) Likely or not likely to provide. (State your rationale.) F 54 ARI /'�'k 4z lei 9V1.10 6r j �59 . Likely or not likely to provide. (State your rationale.) C ��b� ,� � Y • C �n�r-u u :7 1L Likely or not likely to provide. (State your rationale.) Pamir le.(•j err fJ(lannrrl Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). 4. Woody debris present within wetland. Yy 5. Lands within 1 km (0.6 mi) of wetland are //greater than or equal to 40% undeveloped (e.g., green belts, forest, grassland, agricultural). Cf 6. Other wetlands and/or an intermittent or perennial stream within 1 km (0.6 mi) of wetland. I. Habitat for Wetland -Associated Mammals 1. Permanent water present within the wetland. (Must be present for this function to be provided.) Y--eS 2. Presence of emergent vegetation in `ar'eaass of permanent water. 7 3. Areas containing dense shrubs and/or trees are present within wetland or its buffer. r S 4. Interspersion between different strata of vegetation. Y3; 5. Interspersion between permanent open water cc (without vegetation) and permanent water with vegetation. 6. Presence of banks suitable for denning. Y� I 7. Evidence of wildlife use, e.g., dens, tracks, scat, gnawed stumps, etc., is present. J. Habitat for Wetland -Associated Birds 1. Wetland has 30 to 50% shallow open water and/or aquatic bed classes present within the wetland. /t/o 2. Emergent vegetation class present within the wetland. s 3. Forested and scrub -shrub classes present within the wetland or its buffer. 3r;�S 4. Snags present in wetland or its buffer. 145 5. Sand bars and/or mud flats present within the wetland. / /O 23 Likely or not likely to provide. (State your tianale.) J Y lr'�111 h -,i '1- 11 V4 u-W 5v Cq5, Likely or not likely to provide. (State your rationale.) Core W_ t�.� r zw� ��► �.--��, � �„r4-fir � �F_1rCC'ac.�i ,n.rW, ha�,`FnT f r J,,,t ct r] 1-4 Likely or not likely to provide. (State your rationale.) S0 G,�, �� ��-� A'-r41' iSLz Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE, 1995). F. General Habitat Suitability 1. Wetland is not fragmented by development. �rvt 2. Upland surrounding wetland is undeveloped. IPNo 3. Wetland has connectivity with other habitat types. ! � 4. Diversity of plant species is high. A;& Y-6 5. Wetland has more than one Cowardin Class, i.e., (PFO, PSS, PEM, PAB, POW, etc.) ;5; y.{S 6. Has high degree of Cowardin Class interspersion. �'J­t_5 7. Evidence of wildlife use, e.g., tracks, scat, gnawed stumps, etc., is present - IV1 A. G. Habitat for Aquatic Invertebrates 1. Wetland must have permanent or evidence of seasonal inundation for this function to be provided. �a� 2. Various water depths present in wetland V'd 3. Aquatic bed vegetation present. 4,/0 4. Emergent vegetation present within ponded area. Lf 5. Cover (i.e., woody debris, rocks, and leaf litter) present within in the standing water area. 1- 6. A stream or another wetland within 2 km (1.2 mi) of wetland. yt5 H. Habitat for Amphibians 1. Wetland contains areas of seasonal and/or permanent standing water in most years. (Must bpresent for this function to be provided) 2. Thin -stemmed emergent and/or floating aquatic vegetation present within areas of seasonal and/or perennial standing water. Y X) 3. Wetland buffer < 40% developed, i.e., by pavement and/or buildings. 1 _4� Likely or not likely to provide. (State your rationale.) prop-) PCµ-, ` ) w( y����� S�Cr�4c�v. hb. 4�j svr4V' � ' Likely or not likely to provide. (State your rationale.) ('� PJ1s1(� i .�l%�v �T vi.�i li•� d Likely or not likely to provide. (State your rationale.) (� n� rr�a✓L, Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE, 1995). �. CD � ���� g5 gCD '* cn I'll C. C cDCD y 0 CD p, G C Xt,, ^. p CD CDi CDEn r cr p ~ O C LA77 o CD CD °< G CD CD CD CD G. � � h �' '� A C � 1•tii Diz 3 �� "� � G (� S ;A,,ZS ��^ cA rs rl IN , i •s IN 0 n_ d t � T4 b- 0 O 0. c CD � z� n CD CD r O 1h �! b a o� in Ln CD y CD rt7 r R