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HomeMy WebLinkAboutWetland Delineation 90108102367 SOUTHPORT LANE M0,11[f1_1T_1:IA_T_IM114*1 11:1►" OCTOBER 23, 2020 BGE20_0750 *t7o7(A6eNVIFZNMeNTPL, LLG. WETLAND GONSuLTIN6 AND LAND Use PLANNING 67 SOUTHPORT LANE CRITICAL AREA ASSESSMENT OCTOBER 23, 2020 PROJECT LOCATION 67 SOUTHPORT LANE PORT TOWNSEND, WA TAX ACCOUNT 901-081-023 S081T29N,R01W,W.M. PREPARED FOR SCOTT & LINDA ABBEY 2551 ST HELENS PL PORT TOWNSEND, WA 98368 PREPARED BY BGE ENVIRONMENTAL LLc 2102 BRASHEM AVE BREMERTON, WA 98310 360.710.6066 www.bgeenvironmental.com BGE20_0750 CERTIFICATION All field inspections, jurisdictional wetland boundary delineations, and OHWM determinations were prepared by, or under the direction of Robbyn Myers of BGE Environmental, LLC. All technical information is current to best available science and in conjunction with method and manuals outlined in the methods section. All discussions, conclusions and recommendations reflect the best professional judgment of the author(s) and are based upon information available to us at the time the study was conducted. The findings are subject to verification and agreement by the appropriate local, State and Federal regulatory authorities. No other warranty, expressed or implied, is made. Robbyn Myers, Ape ROBBYN MYERS' 1286 I],,,'VAI Wetland Biologist/Environmental Pla Date 67 SOUTHPORT LANE CRITICAL AREA ASSESSMENT OCTOBER 23, 2020 BGE20_0750 *�666NVIF-DINMCNTAL, LLG. WETLAND CONSULTING AND LAND U5E PLANNING DELINEATION OG 0 40 SCALE TO MAP NOT A SURVEY; DRAINFiELD GARAGE C 40 FT WETLAND 5 FT SETBACK `. BUFFER a ti ... • �,�>� 1 S. n �,�, 50 FT STREAM BUFFER E Ns ..�. •Y� k� r -.... k< < .� ..... ......... WETLAND ,,y;�,�,�;' •...SPOT` �► `,.� �s ° t CATEGORY IV �` INTRODUCTION BGE completed a critical area assessment to a single family residential parcel located at 67 Southport Lane in unincorporated Jefferson County, Washington. As we understand the proposed project, the intent is redevelopment/replacement of the manufactured home. Wetlands associated with a non -fish habitat water were identified to a ravine bound setting in the southwestern portion of the property. The wetland was rated as a Category IV sloped complex. The typed water is seasonal with intermittent channel definition within the broad ravine bottom. This critical area assessment is provided for compliance with Title 18 of the Jefferson County Code (JCC). This document includes assessment and documentation of Fish and Wildlife Habitat Conservation Areas (FWHAs) and Wetlands pursuant JCC Title 18.22 for Critical Areas. This report includes the following: • Site description and area of assessment; • Background research and identification of priority, Candidate, Threatened, or Endangered species or habitat for Federal, State, and local determinations near the proposed project; • Background research and identification of potentially regulated critical areas, wetland and surface waters, near the proposed project; • Identification, determination, and assessment of jurisdictional wetlands; and • Review of regulations and standard buffer requirements for wetlands and Typed waters. PAGE ENVIRONMENTAL, LLG 56E20_0150 OGT05eFt 23, 2o2o (PI $OUTHPORT LANE CF4TIGAL AREA ASSESSMENT I I PAGE METHODS Resource information in the public -domain was reviewed for this delineation. Data researched included relevant mapping from U.S. Fish and Wildlife Service, Washington State Department of Fish and Wildlife (WDFW), and Washington Department of Natural Resources (WDNR) Natural Heritage Database, and the Jefferson County GIS mapping resource. Reference sources are summarized in Appendix A. The wetlands and surface waters were assessed by a Senior Professional Wetland Scientist (SPWS) on July 29, 2020. All wetland determinations were completed using observable and documented assessments of vegetation, hydrology, and soils. Wetland boundaries were determined using the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region. Wetland Regulatory Assistance Program, Army Corps of Engineer. May 2010. Areas meeting the criteria set forth in the Regional Supplement were determined to be wetland. Soil, Vegetation, and hydrologic parameters were sampled at several locations along the wetland boundary for confirmation of jurisdiction. All determination forms are provided in Appendix B. To mark the boundary between wetlands and uplands, orange surveyor's flagging was alpha -numerically labeled and tied to vegetation or wood lath along the wetland boundary. Delineated wetlands were classified using the Western Washington Wetland Rating System-2014 by the Department of Ecology (Ecology), provided in Appendix C. Ordinary High Water Mark (OHWM) was confirmed with Ecology method for Determining the Ordinary High Water Mark on Streams in Washington State (Olson, 2008) and definitions provided in RCW 77.55.011 (11) and WAC 220.16.030. Drainages not associated with wetland conditions were driven by a consistent and observable bank which provided a conservative, yet clear demarcation of a surface water conveyance. PAGE ENVIRONMENTAL, LLG BGE20 0150 OGTOW_ 2.3, 2020 UI 5OUTIV09T LANE GIZITIGAL AREA ASSESSMENT 2 I PAGE EXISTING CONDITIONS The subject parcel is developed with a manufactured home, out buildings, and associated use. The landform setting is a benched terrace with increasing elevations towards the east. A ravine formation occurs to the southern reach of the parcel. Powerlines delineate the eastern region of the parcel. Outside of the immediate residential development, the parcels character is mixed mature native forest with a developed understory. Surrounding use is moderate single-family residential land use and private timber forest land. Services are Port Hadlock and Port Townsend. P3,GE ENVIRONMENTAL, LLC 56qE20 0150 OCTOW- 23, 2.02.0 l01 SOUTHPORT LANE CRITICAL AREA ASSESSMENT 3 1 PAGE BACKGROUND INFORMATION Background research and data review are essential for the assessment of wetlands, surface waters and documented habitat and species within the vicinity of the project site. Data researched included relevant mapping from U.S. Fish and Wildlife Service, Natural Resources Conservation Service Web Soil Survey, Washington State Department of Fish and Wildlife (WDFW), and Washington Department of Natural Resources (WDNR) Natural Heritage Database. Included are resource searches under the local jurisdiction. Reports generated, when available, are in Appendix A. JEFFERSON COUNTY CRITICAL AREA MAP The Jefferson County parcel reviewer indicates a non -fish habitat water to the southwest corner of the property. Additional critical area features include landslide hazard (slight) and shoreline slope stability (unstable slope). U.S. FISH & WILDLIFE SERVICE NATIONAL WETLAND INVENTORY The US Fish and Wildlife Service National Wetland Inventory (NWI) indicates riverine habitat traversing the southwestern region of the property. The Cowardin classification is riverine intermittent streambed seasonally flooded (R4SBC). This system is presumed to be supported by a headwater wetland mapped in the east at higher elevations. The headwater complex is identified as being 3.48 acres of freshwater forested/shrub that is seasonally flooded (PSSC). Cowardin classifications are provided below. System Riverine (R): The Riverine System includes all wetlands and deepwater habitats contained within a channel, with two exceptions: (1) wetlands dominated by trees, shrubs, persistent emergents, emergent mosses, or lichens, and (2) habitats with water containing ocean -derived salts of 0.5 ppt or greater. A channel is an open conduit either naturally or artificially created which periodically or continuously contains moving water, or which forms a connecting link between two bodies of standing water. • Subsystem Intermittent (4): This Subsystem includes channels that contain flowing water only part of the year. When the water is not flowing, it may remain in isolated pools or surface water may be absent. PAGE ENVIRONMENTAL, LLG 156E20 0150 OCTOSER 2-3, 2-ou 41 SOUTHFORT LANE CRITICAL AREA ASSESSMENT 4 1 PACrE • Class Streambed (SB): Includes all wetlands contained within the Intermittent Subsystem of the Riverine System and all channels of the Estuarine System or of the Tidal Subsystem of the Riverine System that are completely dewatered at low tide. • Water Regime Seasonally Flooded (Q Surface water is present for extended periods especially early in the growing season, but is absent by the end of the growing season in most years. The water table after flooding ceases is variable, extending from saturated to the surface to a water table well below the ground surface. Palustrine (P): The Palustrine System includes all nontidal wetlands dominated by trees, shrubs, persistent emergents, emergent mosses or lichens, and all such wetlands that occur in tidal areas where salinity due to ocean -derived salts is below 0.5 ppt. It also includes wetlands lacking such vegetation, but with all of the following four characteristics: (1) area less than 8 ha (20 acres); (2) active wave -formed or bedrock shoreline features lacking; (3) water depth in the deepest part of basin less than 2.5 m (8.2 ft) at low water; and (4) salinity due to ocean -derived salts less than 0.5 ppt. • Class Scrub -Shrub (SS): Includes areas dominated by woody vegetation less than 6 m (20 feet) tall. The species include true shrubs, young trees (saplings), and trees or shrubs that are small or stunted because of environmental conditions. NRCS WEB SOIL SURVEY The Natural Resources Conservation Service (NRCS) of the United States Department of Agriculture identify the parcel soils as Tukey gravelly loam, 0 to 15 percent slopes. Characteristics of these soil types are provided below. (TuC) Tukey gravelly loam, 0 to 15 percent slopes. Commonly located on terraces consisting of basal till. Restrictive densic material is typical between 20 to 40 inches. Composition is gravelly loam. Moderately well drained soils with low water capacity. Not flooded or ponded. Water table occur anywhere from 18 to 36 inches below the surface. These soils are droughty and not hydric. WDNR NATURAL HERITAGE DATABASE According to Washington Department of Natural Resource (WDNR) records, no threatened or endangered species of plants are recorded as present within the immediate vicinity of the property. Qi(GE ENVIRONMENTAL, LLG NAW 0150 OGT05ER 23, 202o (A SOUTHPORT LANE C-MIGAL AREA ASSESSMENT 5 1 PAGE WASHINGTON DEPARTMENT OF ECOLOGY Washington Department of Ecology, Water Quality Atlas indicates no surface waters or water quality issues to associated surface water on or within the sub basin. WDFW PRIORITY SPECIES AND HABITAT (PHS) The US Fish and Wildlife Service National Wetland Inventory (NWI) indicates no priority habitat or species on or within the vicinity of the property to 300 ft. PAGE ENVIRONMENTAL, LLG 56qE2o_Mo OGT05ER 2.3, 2o2o (off SOUTHPORT LANE CRITICAL AREA ASSESSMENT (o I 'PAGE FINDINGS WETLAND DELINEATION The project area was assessed on July 29, 2020. The typical ambient temperatures ranged from 480 to 770 F. The field assessment and wetland determinations and delineations were conducted by Robbyn Myers, a Senior Professional Wetland Scientist (#1286 Certification under the Society of Wetland Scientists). A routine wetland delineation was performed. Characterization of climatic conditions for precipitation in the Wetland Determination Data Forms were determined using the WETS table methodology (USDA, NRCS 2015). The "Chimacum 1.8 SW" station from 2000-2020 was used as a source for precipitation data (htt a acis.rcc-acis_or ). The WETS table methodology uses climate data from the three months prior to the site visit month to determine if normal conditions are present in the study area region. Conditions were within the normal range. The site investigation includes the entire parcel and limited review outside of property boundaries. Aerials, LiDAR, and resource documents were used for interpolations with professional judgement to vicinity resources. The investigation concluded a Type Ns water and associated Category IV wetlands. WETLAND Wetlands located within the ravine setting are broadly defined within the approximate toe -of - slope. The wetland interior included areas of upland and a persistent show of surface water as braided water marks (sheet flow) or a defined bed and bank. Vegetation inventory within the wetland included cascara (Rhamnus purshiana, FAC-), red alder (Alnus rubra, FAC), Western red cedar (Thuja plicata, FAC), salmonberry (Rubus spectabilis, FAC), lady fern (Athyrium filix femina, FAC), stinging nettle (Urtica dioica, FAC), youth -on -age (Tolmiea menziesii, FAC), creeping buttercup (Ranunculus repens, FAC), Himalayan blackberry (Rubus armeniacus, FAC), and common sword fern (Polystichum munitum, FACU). Soils were brownish gray loam at the surface (10YR 4/1). Below four (4) inches the composition was loam sand, also brownish gray (10YR 6/1) with dull yellow and brown redox features. Hydrology was confirmed with observable water marks (stream) and secondary presumptions with drainage patterns and geomorphic position in the landscape. Wetlands are assigned a numeric score based on the combined scores for site, landscape potential and for society value. The numeric score determines the category rating of the wetland. Regulatory code then uses the rating for such issues as the width of buffers needed to protect $G£ £NVIRONM£NTAL, LLG 56£20_0150 0GT05f;F- 23, 2-ou (01 SOUTHVORT LAN£ CRITICAL AREA ASSESSMENT 1 I pAG£ the wetland from adjacent development, the amount of mitigation needed to compensate for impacts to the wetland and permitted uses in the wetland. Results of the project area wetland are summarized below. Water Quality Improvement Site Potential Low Landscape Potential Low Societal Value Low gic Function Habitat Function Low Low Low High Low Medium Hydrogeomorphic (HGM) classification is slope. Cowardin definition PFO. The wetland is a Category IV with a Habitat value of 6. J1 MAU I The ravine is natural forest with vegetation complexity to beyond the top -of -slope. The interior is decadent shrubs whereas the side slopes are open understory with a mostly closed canopy. Vegetation includes Bigleaf maple (Acermacrophyllum, FACU), Western red cedar, cascara, red alder, Pacific madrone (Arbutus menziesii, UPL), oceanspray (Holodiscus discolor, FACU), red elderberry (Sambucus racemosa, FACU), salal (Gaultheria shallon, FACU), salmonberry, common sword fern, lady fern, bracken fern, bleeding heart (Dicentra Formosa, UPL), stinging nettle, (Pteridium aquilinum, FACU), white -stem raspberry (Rubus leucodermis, FACU), and Himalayan blackberry. Soils were brown to grayish yellow brown, chroma 10YR 4/2 loam sand to 15 inches. The profile lacked hydric features. Hydrology was absent. SURFACE WATERS A Type Ns water is observed to the ravine setting in the southwest corner of the property. It enters the ravine from a culvert set to the topography within the utility easement. The channel was intermittent with observed bed, bank, or braided sheet flow through wetland conditions. Immediately off -site to the west both the stream and wetland conditions stop. No further investigation was done due to trespass. PNGE ENVIRONMENTAL, LLG 5GE20 0150 OGTO5ER 23, 2020 (01 $OUTHpORT LANE GRITIGAL AREA ASSESSMENT 9 1 VALE REGULATORY REVIEW Prescribed wetland buffer widths are based on wetland category, habitat scoring, and the expected level of impact. Buffers shall remain intact with native vegetation adequate to protect wetland functions, value, and structural stability. The ravine bound wetlands are Category IV, habitat 6, under a moderate land intensity. The standard buffer width is 40 ft (1CC Title Table 18.22.730(1)(a)). Type Ns waters are designated as fish and wildlife habitat conservation areas. The on -site water is a non -fish bearing seasonal stream with less than 20% grade. A standard buffer of 50 ft applies per JCC Title Table 18.22.630(1). All buffers shall be measured horizontally from a perpendicular line established at the wetland edge or stream bank -full width. For stream in ravines setbacks for geologically hazardous areas may still apply if determined necessary. A 5-ft building or impervious surface setback is required from the edge of any critical area buffer. The setback shall be identified on the site plan. Buffers shall remain as undisturbed or enhanced vegetation areas for the purpose of protecting the integrity, function, and value of the critical area habitat and/or species use. Any buffer modification proposed shall comply in accordance with development standards provided that the applicant demonstrates the need for modification through mitigation sequencing. Equal or greater function and value must be demonstrated through buffer width averaging or buffer width reduction. PMGE ENVIRONMENTAL, LLG P,GiE20_0150 DC— 23, 2020 U-1 $01 ITHPORT LANE CFATIGAL AREA ASSESSMENT q I pAGE VEGETATION %A/CTI A AI n A WETLAND DETERMINATION Dominance Test is > 50% RATING IV WETLAND SIZE < 2.5 ACRES COWARDIN PFO WETLAND SP01 DATA NONWETLAND SP02 DATA SOILS Redox Dark Surface (F6) HYDROLOGY Drainage Patterns (1310), Geomorphic Position (D2) Immediate relief of hydrology or topography. Vegetation mixed along DELINEATION RATIONALE ecotone. WETLAND RATING WETLAND UNIT Unit determination is based on field observations and wetland area DETERMINATION limited to parcel boundaries. HGIVI CLASS slope MAPPING TOOL Jefferson County Critical Area Map, Google Earth, Bing Maps IMPROVING WATER QUALITY 3 (L, L, L) HYDROLOGIC 3 (L, L, L) HABITAT 6 (L, H, My PAGE ENVIRONMENTAL, LLC P,GE2o_0150 OCTOSER V, 2ozo 0 SOUTHPORT LANE CRITICAL AREA ASSESSMENT Ilo I PAGE AP+ i tl�a r�` _ . 'sue' �.� k��..i :� • '� �.. �� �' I AP r ' . _.. .t •` i T MW­ w 7 ,� IL 11 •4e w - f tir .- f�• 1 fo �'• � Y._•r. ' �-, !` '�:: �* � � ' � rt. � ��•, �"� Y 1 fi p Mau ` :r� ; 4A 00- +� Aft �_ sit 4 � it do 409 APPENDIX A - REFERENCE SOURCES WETLAND DELINEATION USACE 1987 http://el.erdc.usace.army. _ Environmental Laboratory. 1987. Corps of Engineers Wetlands Wetland mil/elpubs/pdf/wlman87.p Delineation Manual. Technical Report Y-87-1, US Army Engineer Delineation Manual df Waterways Experiment Station, Vicksburg, Mississippi. Western Mountains, http://www.usace.army.m U.S. Army Corps of Engineers. 2010. Regional Supplement to the Valleys, and Coast it/CECW/Documents/cecw Corps of Engineers Wetland Delineation Manual: Western Region Interim o/reg/west_mt_finalsupp. Mountains, Valleys, and Coast Region (Version 2.0), ed. J. S. Regional pdf Wakeley, R. W. Lichvar, and C. V. Noble. ERDC/ELTR-10-3. Supplement Vicksburg, MS: U.S. Army Engineer Research and Development Center. _ WETLAND CLASSIFICATION USFWS / Cowardin http://www.fws.gov/nwi/P Classification ubs_Reports/Class_Manua System I/class_titlepg.htm Hydrogeomorphic http://el.erdc.usace.army. Classification mil/wetlands/pdfs/wrpde4 (HGM) System .pdf WETLAND RATING Washington State https:Hfortress.wa.gov/ec Wetland Rating y/publications/SummaryPa Svstem ees/1406029. htm I WETLAND INDICATOR STATUS Northwest (Region http://www.fws.gov/nwi/b 9) (Reed, 1988) and ha/list88.html Northwest (Region 9) Supplement (Reed et al., 1993) Cowardin, L. M., V. Carter, F. C. Golet, E. T. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. Government Printing Office, Washington, D.C. Brinson, M. M. (1993). "A hydrogeomorphic classification for wetlands," Technical Report WRP-DE-4, U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS. Hruby. 2014 Update. Washington State wetland rating system for western Washington —Revised. Publication #14-06-029. Reed, P.B. Jr. 1988. National list of plant species that occur in wetlands: Washington. Biological Report NERC-88/18.47 for National Wetlands Inventory, Washington, D.C. Reed, P.B. Jr. 1993. Northwest supplement (Region 9) species with a change in indicator status or added to the Northwest 1988 list, wetland plants of the state of Washington 1988. U.S. Department of Interior Fish and Wildlife Service WELUT - 88 (26.9). Washington, D.C. SOILS DATA NRCS Soil Survey http://websoilsurvey.nres. Website GIS data based upon: usda.gov/app/WebSoilSury McMurphy, Carl J. 1980. Soil Survey of King County, ey.aspx Washington. United States Department of Agriculture, Soil Conservation Service in cooperation with Washington State Department of Natural Resources. THREATENED AND ENDANGERED SPECIES Washington Natural Heritage Program Washington Priority Habitats and Species http://www.dnr.wa.gov/n h p/ and http://wwwl.dnr.wa.gov/ n hp/refdesk/datasearch/w nhpwetlands.pdf http://wdfw.wa.gov/hab/p hspage.htm Washington Natural Heritage Program (Data published 10/15/08). Endangered, threatened, and sensitive plants of Washington. Washington State Department of Natural Resources, Washington Natural Heritage Program, Olympia, WA Priority Habitats and Species (PHS) Program Washington Department of Fish and Wildlife (WDFW). 4]y BGE ENVIRONMENTAL, LLG OGT0561?- 23, 2.020 (A $OUTHP09T LANE GRITIGAL AREA ASSESSMENT 56rE2o - _075o �i k g § / k � .k.� . 2 ?IotBOtoe . , . k , k $ - ���$� > � � \ . k ; ±» W l a m iv C y fn o BUOJPCYY r � oa 05 n d N N 4 M 0 ra o aD c Y L N O IX ®❑❑ L c a) � .r cn E O O w LL a 3 3 3 L L L 0 to 0 a) N N LL LL LL El ❑ L -1 a) 3 c fl. � o � a) a) c c m cc c c m m a) a> c c o N 7 7 N W W W ti C N _ �, __� j j l l— .l � r 2 V OMeg M.6b4 dZT a OLflBI£5 OMBLE9 OLZUs9 OMES OMES OMUM OZE66E5 1 I'u7f— r 2 OME'4 M.6bb oM O m O O N � n d 0 rn � m a Z O Q 0 _Z Ca C Z W a W J a O Cl) N — O O N N cc CD cm n m 0 0 wo N m L f0 to a) ,ac�N d 0. m Z miO n =E w co 0 o ro,E a c� E E`o a�v� co c n m r- - m o E m m "_ o �� N E N coo V'� y m- E m r g Z cor, v c E LD rn � Q $Yr 3 N .0 a y C cc aa) my m Z o �o .- o E> w o o c� y m o a N m m 0 NN o -a a� �� m .92 0. U mar � U) av ca Q m c L�' wa yc c� m 0 N E LE U O N p y m o = �' c O O Q T m > > m� o o m CS m c� c mtiw o a) � o » o m a m O a- y ma aE a �'m oL O c �� ° m oa c ym. a N E CL ID m �Np (D 7 ww O y p a -u 'O c O O_ N m L m m L O C E O U c T N a 7 L m 0 U N C.l w O dC O .2 m w N— N� IG a) a N 3 m a) D_ t 7 L'O m E no .O.J� m� tmn �Q a� w Ni m y a� O o N oa w (n a m m rn L C y y w Z E T a� o ns m o L `1 a) f0 aci °?o tm m m m d m p� m � O� T 7 T O .0Oc0 C y O- N T a) L m M O 'O d Q Q O ..+ m f0 O m O_ L C o m w E c E > E � :? ca E m: cr ='E m CD m o W m onm� E O 0- Of 'C a1 Epc N N p0� 'O c U)-2 � O� m .a) ) c O? O_ i� N m 0 E O 0 .y-. O L�� p o LN E m m� a Q) c Ln c 3 0 m m a E ` �a o LO) to CL m ava a) N« •IL- o cn - Z in in -o c-n� :?N 0� ar E m$ H 8 E M E-� E= w E_ w m T a) 7 � O � Z N 7 > - m O a) U n a o a� w m % t U LL � m U a m O m _ a1 O O L Z Q co a m N S3 E N f9 40' 'o tr 6 a C $. OC to > O USfn N tZ C J Q c QD o a : 3 c O N C O N C o C N ~O �a WCOL m O C O a a yy Spa h a a) CL O D n a m m m y a 5 rj a c -- d c `o O a m co o Q N LL 3 0 O T tI1 > > v m - N Wy,7 c o N Y N V �n Q .sOO (n y !A p 0 p�p m m m o U U La �CNp U (D J J m 2 C 2 2 N O a a' i0 Cl) N N C rn N U) N O co m a c o � ? © y 21 X o X . 0 --4 4c O > +X 4 0.0►� ; z E • oy Q O (A — O C d 'a0�+ d' � al 7 N m O Zq V O�`3A Soil Map —Jefferson County Area, Washington Map Unit Legend Map Unit Symbol Map Unit Name TuC Tukey gravelly loam, 0 to 15 percent slopes Acres In AOI Percent of AOI 26.6 100.0% Totals for Area of Interest 1 26.61 100.0% usax Natural Resources 3� Conservation Service Web Soil Survey National Cooperative Soil Survey 7/27/2020 Page 3 of 3 srnt.ir� Priority Habitats and Species on the Web Report Date: 07/30/2020 The Priority Habitats and Species (PHS) datasets do not contain information for your project area. NOTE: This does not mean that Priority Species and/or Priority Habitats are not associated with your project area. WDFW maps Priority Habitats and Priority Species based on field observations; your project site may not show PHS records because we have not surveyed it. Also, some Priority Habitats are currently not mapped (e.g. riparian habitat). If you think your project area may contain a Priority Habitat or Priority Species, please contact your regional WDFW Habitat Biologist. DISCLAIMER. This report Includes information that the Washington Departrnent of Fish and Wildlife (VVDFW). maintains In a central compular database. 11 Is not an at tempt to provide yarr with an official agency response as to the impaon of your project on fish and wlldllfe. TN Information orl y documents the location of fish and wildlife resources to the best or our knowledge. It Is not a complete inventory and it is Important to note that fist and witdllfe resources may occur In areas not currently known to WDF W biologiills , or In areas for which comprehensive surveys have not bean condtMed, Site specific surveys are frequently necasseary to rule out the presence of priority resources. Locations of Flsh and wildlife resources are suNect to varWicn caused by disturbance, changes In season and Weather, and other factors. WDFW does not recommend using reports more than s}x months old. 4x 3 1'•� a u Pa A9nQn M � r it a r` 4d Rkl°Nrll*tun8 Oc ,_; L O M Z a u O a 3 g w w = w f w Q � z Z N oe = L 2 (D M V:� CDo 3 � a N V) 0 0 � L = u O O 5 w w — V) U) o Co Lb O 't C C O O >+ o U 2 N M APPENDIX B DATA FORMS WETLAND DETERMINATION } eGE ENVIRONMENTAL, LLG OCT05fF- 23, 2020 W SOUTHVORT LANE CRITICAL AREA ASSESSMENT 56E20_0150 WETLAND DETERMINATION DATA FORM — Western Mountains, Valleys, and Coast Region City/Coy: '�IFC�� Sampling Date: 7n ProProject/Site:unt� Applicant/Owner: State: �_ Sampting Point:aw _ Investlgetor(s): i Section, Township, Range: 16. ' bi W W.rr,. Landform (hilisiope, terrace, etc.): t«= Local relief (concave, convex, none): 1r1�Ine Slope Subregion (LRR): A Lat: Long: — Datum: Soil Map Unit Name: IQNnr-,-t NWI classification: Are climatic / hydrologic conditions on the site typical for this time of year? Yes 1 No (If no, explain in Remarks.) Are Vegetation Soil or Hydrology significantly disturbed? Are "Normal Circumstances' present? Yes k 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, transacts, important features, etc. Hydrophytic Vegetation Present? Yes Hydric Soil Present? Yes Wetland Hydrology Present? Yes No No Is the Sampled Area Na_ within a Wetland? Yes �— No _� Remarks: pl^D Irv, c(�jl�l�-�lli1�DC• lrVlYl itt�'JpC1P�'Cl�1D VEGETATION — Use scientific names of plants. Tree 5tral (Plot size: _ ] Absolute Dominant Indicator °% C vC v-r Species? rJSta s -ominance Test worksheet: Number of Dominant Species 1 i l�f�rli &-Vc L COO T1�� That Are OBL, FACW, or FAC: (A) 2. Total Number of Dominant 3 Species Across All Strata: {B} 4. ��,--� = Total Cover Percent of Dominant Species That Are OBL, FACW, or FAC: �Z (A/B) I' n /Shrub Stratum (Plot size:. U } c _ prevalence Index workshest: 1• _� Total i 2. OBL species x 1 w 3. FACW species x 2 - 4. FAC species x 3 R 5. FACU species x 4 = ~l V = Total Cover UPL species x 5 = filer 5lratuR1 (Plot size:- Column Totals: (A) [B) 1. 2 1 t"1 Prevalence Index = BIA = 3 "i' �_ n— Hydrophytic Vegetation Indicators: 4 _ 1 - Rapid Test for Hydrophytic Vegetation 5 __,K,2 - Dominance Test Is >50°% 6 _ 3 - Prevalence Index is 53.0' 7 — 4 - Morphological Adaptations' (Provide supporting data In Remarks or on a separate sheet) 8. 5 -Wetland Non -Vascular Plants' 9. _ Problematic Hydrophytic Vegetation' (Explain) 10. 'Indicators of hyddc soil and wetland hydrology must 11. be present; unless disturbed or problematic. MW Total Cover woody one Stra I m (Plot size: 1 1 Hydrophytic 2. Vegetation Present? Yes K No °% Bare Ground In Herb Stratum ❑ �' = Total Cover Remarks: r�-� i�. Ck01lin0-(1C-0. OF 4ce- US Army Corps of Engineers Western Mountains, Valleys, and Coast - Version 2.0 SOIL vj J��k� C �� Lp Sampling Pout 6—fan hmnrnauan: It7escrlbe t fire depth needed todocurnarrt the Indicator orrorrfhm fire at�snce � indicators) Depth Ma6 _ Redox Features Remarks __ n Co or moist 96 Color (moist) L° f l f TmLA 104-Jox"—yl L� 'T e: G=+Gencerttnation. �DsRLRRs, unless otha sevnred or obed.)C�E� SandGl Hydric Sall ImllcaWls: (APPltca6letoa _ Histosot (Al) Hlstic EPIPedon 02) _ Black HISnc (A3) Hydrogen Sulfide (M) Depleted Below Dark Surface (All) _ Thick Dark Surface (Al2) Sandy Mucky Mineral (S1) Sandy Gleyed Matrbk (Sa) Ftestrlc I e Layer (i present): _ Sandy Redox (Sj _ Stripped Matrix (SB) _ Loamy Mucky Mineral (F7) (a *--8Pt tIII1.RA 1) Loamy Gleyed Matrix (r2) _ _ Depleted Matrix (F3) V-Redox Dark Surface (FS) Depleted Dark Surface (F7) RedoxDepresfiions (179) Type: Depth (inches)_ marks: �1 . o f (L. HYDROLOGY HYDROLOGY Location: PL=Pare Lintn , M=Matrix. Indicators for Probtemstic Hydrtc Solls' _ 2 om Muck (A10) _ Red Parent Material (TF2) Very Shallow Dark Surface (TF12) _ other (Explain in Remarks) 'Indicators of hydrophytic vegetation and Weiland trydrology must be present. unless disturbed or problematlo. Hydric Sail Present? Yes K, No — — Prima Indicators minimum of one uired• the all the a 2iEludace Water (Ai) , Water-Stalned Leaves (89) (except High Water Table (AZ) MLRA 1, 2, 4A, and 413) Saturation (A3) ` Salt Crust (B11) _ Water Marks (131) Aquatic invertebrates (1313) Sediment Deposits (B2) — Hydrogen Sulfide odor (Cl) oxidized Rh€zosphems along Living Rook (C3) Drift Deposits 03) Algal Mat or Crust (134) , ^ Presence of Reduced Iran (C4) iron Deposits (FIS) _ Recent Iron Reduction in Tilted Soils (GO) Surface Soil Cracks (SO) Stunted or Siressed Planls (Di) (1"FtFt A) Inundation Visible on Aerial Imagery (B7) tither (Explain in Remarkks) Sparsely Vegetated Concave Surface (Ba) F— Surface Water Present? Water Table Present? " Saturation Present? $econdary lndlcstars f2 ar more [squired Water -Stained Leaves (BR) (11111-RA 1, 2." 4A, and 413) ,Drainage Patterns (B10) _ DrySeason Water Table (C2) _ SBWM* n Visible on Aerial Imagery (C9) DC Geomorphic Position (D2) ShanowAqurtard (139) _ FAC-Nft" Test (135) _ Raisert Ant Mounds (DO) (LRR A) Frost Heave Hummocks (137) Yes No Depth Cm)= Yes No Depth (inches): V Yes No D8PIh pnches): Wetland Hydrology Present? Yers�- No Describe Recorded Dala (stream gauge, monitoring well. aerla lit Remarks: u � r--)e� liC�r" � 1L�a J t V PAOt n C-- US Army Corps of Engineers Western Mountains, Valleys. and Coast -Version 2.0 WETLAND DETERRMIINNATION DATA FORM — Western Mountains, Valleys, and Coast Region 70 Project/Site: , (0vi l�-CJi� City/county: Sampling Date: �" Applicant/Owner: State: 1. ��- ��S��am//pp�ling Point: Investigator(s): Section, Township, Range: it t'• LJt i�-� fly-)' Landforrn (hillslope, terrace, etc.): Local relief (concave, convex, none): X3 Slope (%): 1 Subregion (LRR): LX..i9_A Let: Long: Datum: — Soil Map Unit Name:1t1 ts� 1`�7 a0 — NWI classification: r1"� Are climatic / hydrologic conditions on the site typical for this time of year? Yes b- No (If no, explain In Remarks.) Are Vegetation Soil or Hydrology significantly disturbed? Are 'Normal Circumstances" present? Yes K. 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, transacts, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes Na Is the Sampled Area Wetland Hydrology Present? Yes No �� within a Wetland? Yes No Remarlcs pea- -W w�►c0mCxSG- VEGETATION — Use scientific names of plants. Absolute Dominant Indicator Tres a 51rat4m (Plot size:----------) 96�r ecies? Status 1. 2. 3. 4. Total Cover b m (Plot size: ] C 2. 4. 5. � Jam —=Total Cov— er i {P)fit size: �f ► ' 2. 3. 4. 5. -- 6. — 7. — B. — 10 11. - If L =Total Cover Woody Vine Skre um (Plot size: ) 2. — = Total Cover % Bare Ground in Herb Stratum Dominance Test worksheets Number of Dominant Species 1 That Are OBL, FACW, or FAC: ` (A) Total Number of Dominant '] Species Across All Strata: — Percent of Dominant Species That Are OBL, FACW, or FAC: Prevalence Index workshant: Total °% Cover Ol. Multioly by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: L• 1y (A) Prevalence Index = B/A= �=7•� Hydrophytic Vegetation Indicators: _ 1 - Rapid Test for Hydrophytic Vegetation _ 2 - Dominance Test Is >50% _ 3 - Prevalence Index is 53.01 _ 4 - Morphological Adaptations' (Provide supporting data In Remarks or on a separate sheet) _ 5 - Wetland Non -Vascular Plants' _ Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydrtc soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes No K- Remarks- g. U& t cU m+c pwj--�!) r no dov-)� i ncLnef—�" C -. e_ COfC&b US Army Corps of Engineers Western Mountains, Valleys, and Coast -Version 2.0 _ Hlstosol (All) _ Histic EPipedon 02) _ Black Histic (A3) _ Hydrogen Stttflde (A4) _ Depleted Below Dark Surface (A11) _ Thick Dade Surface (Al2) _ Sandy Mucky Mineral (S7) _ Sandy Gleyed MOW (S4) Rastrtctiva Layer (if present): Type: Depth (inches): p"" C!)U � nc) tnU VI'1,U" `lJ� d�. SOIL L-� �� Point rn-crAho thn d&a needed to document the indicator or confirm the absence ai lndfcatnrs ) Redox at Depth CofOi moist % e��Lae Textu Remarks inc as M%— _� ) — 'Ty B: Concentration. D=Deplellan RM=Redued Matrix, CS�overed or Hydrfc Soil Indicators: (Applicable to all L.RR.% unless otherwise noted.) — Sandy Redox(W — Shipped Matrix (SS) _ Loamy Muc:1:y Mineral (F1) (except NIRA 1) — Loamy r31eyed Matrix (F2) — Depleted Matrix (F3) _ Redox Dark Surface (F6) — Depleted Dark Surface (Fi) RedoxDeprassions (F8) Send sins, 'Location: PL=Pore Lin , M=Matrix. Indieatm for Pnoblan 01110 Hydrae S0110' 2 Crr Muck (A10) — Red Parent Material ff 2) Very Shaitow Dark Surface (TF12) Other (Explain In Remadw) 'Indkg tors or hydrophytic vegetation and wetland hydrology must be Present unless disturbed or problematle. — "Tv'i�? .11S :440 01L�J 1 HydNc Soft Present? Yes— No- L-i Wetland Hydrology InmC.sranic Second 1rulfratvrs 12 or mere n=_ wised rims Inds rs ini m ni one uE • check all that apply) Water -Stained Leaves (138) (vxcopt — WaterSta;ned Leaves (S9) (WIA' 1, 2, _ Surface Water (Al) High Water Table (A2) — BURA 1, 2, 4A, and 4B) 4A, and 40) r Saturation (A3) —_ — Salt Cyst (811) — Drainage Pauems (B10) DrySeason Water Table (C2) Water Marks (BI) — Aquatic Invertebrates (B13) _ Hydrogen Sulfide Odor (Cl) — Saturatlon Visible on Aerial Imagery (C9) Sediment Deposits (B2) — Oxidized Rhizospheres along Living Rack (C3) _ Geomorphic Position (D2) Drift Deposits (133) — Presence of Reduced Iran (C4) — ShaltowAqur'tard (D3) — Algal Mat or Crust (84) — Recent Iron Reduction in haled Sdis (C6) _ FAC-Neutral Test (135) — Iron Deposits (55) Surface Soli Cranks (Sfi) — _ Stunted or Stressa— d Plants (D1) (LRR A) Raised Ant Mounds (DO) (LRR A) — Inundstlon Visible on Aerial Imagery (BT) — Other (Explain in Remartrs) — Frost-Heave Hummocks (137) _ gpatseiy Vegetated Concave Surface (88) Surface Water Present? Yes No Depth (inches): _ Water Table Present? Yes No Depth (ink)" Wetland Hydrology Present? Yes: No Saturation Present? Yes No Depth (Inches): (streef0 gouge, monitoring wet, aeilal priotos, previous lnspedlans),It available: us Army Corps of Engineers Western Mountains, Valleys, and Coast —Version 2.0 APPENDIX C WETLAND RATING FORM PAGE fNVIR.ONMeNTAL, LLG OCTMf,7- 23, 2020 (ol SOUTHVORT LANE CRITICAL ARIA ASSESSMENT 56E20 0-150 Wetland name or number RATING SUMMARY —Western Washington Name of wetland (or ID #): 67 SOUTHPORT LANE Date of site visit: 07.29.20 Rated by RMYERS; BGE ENVIRONME Trained by Ecology? El Yes ❑ No Date of training 2017 HGM Class used for rating Slope Wetland has multiple HGM classes? ❑ Yes 21 No NOTE: Form is not complete with out the figures requested (figures can be combined). Source of base aerial photo/map KCGIS; BING; GOOGLE OVERALL WETLAND CATEGORY IV (based on functions Dor special characteristics ❑ ) 1. Category of wetland based on FUNCTIONS Category I - Total score = 23 - 27 Category II - Total score = 20 - 22 Category III - Total score = 16 - 19 X Category IV - Total score = 9 - 15 Improving Hydrologic Habitat FUNCTION Water Quality I I List appropriate rating (H, M, Q Site Potential L L L Landscape Potential L L H Value L L M Total Score Based on 3 3 6 12 Ratings 2. Category based on SPECIAL CHARACTERISTICS of wetland CHARACTERISTIC Category Estuarine Wetland of High Conservation Value Bog Mature Forest Old Growth Forest Coastal Lagoon Interdunal None of the above X Score for each function based on three ratings (order of ratings is not important) 9 = H, H, H 8=H,H,M 7=H,H,L 7=H,M,M 6 = H, M, L 6 = M, M, M 5=H,L,L 5 = M, M, L 4=M,L,L 3=L,L,L Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 1 WSDOT Adapted Form - January 14, 2015 Wetland name or number Maps and Figures required to answer questions correctly for Western Washington Derarassional Wetlands Map of: To answer questions: Figure # Cowardin plant classes D 1.3, H 1.1, H 1.4 Hydroperiods D 1.4, H 1.2 Location of outlet (can be added to map of hydroperiods) D 1.1, D 4.1 Boundary of area within 150 ft of the wetland (can be added to another figure) D 2.2, D 5.2 Map of the contributing basin D 4.3, D 5.3 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) D 3.1, D 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) D 3.3 Riverine Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 Hydroperiods H 1.2 Ponded depressions R 1.1 Boundary of area within 150 ft of the wetland (can be added to another figure) R 2.4 Plant cover of trees, shrubs, and herbaceous plants R 1.2, R 4.2 Width of unit vs. width of stream (can be added to another figure) R 4.1 Map of the contributing basin R 2.2, R 2.3, R 5.2 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) R 3.1 Screen capture of list of TMDLs for WRIA in which unit is found (from web) R 3.2, R 3.3 Lake Fringe Wetlands Map of: To answer questions: Figure # Cowardin plant classes L 1. 1, L4.1, H 1. 1, H 1.4 Plant cover of trees, shrubs, and herbaceous plants L 1.2 Boundary of area within 150 ft of the wetland (can be added to another figure) L 2.2 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2. 1. H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) L 3.1, L 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) L 3.3 Slope Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 1 Hydroperiods H 1.2 1 Plant cover of dense trees, shrubs, and herbaceous plants S 1.3 1 Plant cover of dense, rigid trees, shrubs, and herbaceous plants (can be added to another figure) S 4.1 1 Boundary of area within 150 ft of the wetland (can be added to another figure) S 2.1, S 5.1 1 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 2 Screen capture of map of 303(d) listed waters in basin (from Ecology website) S 3.1, S 3.2 3 Screen capture of list of TMDLs for WRIA in which unit is found (from web) S 3.3 3 Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 2 WSDOT Adapted Form - January 14, 2015 Wetland name or number HGM Classification of Wetland in Western Washington For questions 1 -7, the criteria described must apply to the entire unit being rated. If hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1 - 7 apply, and go to Question 8. 1. Are the water levels in the entire unit usually controlled by tides except during floods? 0 NO - go to 2 ❑ YES - the wetland class is Tidal Fringe - go to 1.1 1.1 Is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? ❑ NO - Saltwater Tidal Fringe (Estuarine) ❑ YES - Freshwater Tidal Fringe 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 an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. 2. The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. R1 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. 3. Does the entire wetland unit meet all of the following criteria? ❑ The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; ❑ At least 30% of the open water area is deeper than 6.6 ft (2 m). 121 NO - go to 4 ❑ YES - The wetland class is Lake Fringe (Lacustrine Fringe) 4. Does the entire wetland unit meet all of the following criteria? 0 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 distinct banks. The water leaves the wetland without being impounded. ❑ NO - go to 5 PI YES - The wetland class is Slope NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 ft deep). 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 2 years. El NO-goto6 ❑ YES - The wetland class is Riverine NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 WSDOT Adapted Form - January 14, 2015 Wetland name or number 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 wetland. E NO-goto7 ❑ YES - The wetland class is Depressional 7. Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding? The unit does not pond surface water more than 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. 21 NO-goto8 ❑ YES - The wetland class is Depressional 8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. 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 the wetland unit being scored. 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 HGM 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 classes within the wetland unit being rated HGM class to use in rating Slope + Riverine Riverine Slope + Depressional Depressional Slope + Lake Fringe Lake Fringe Depressional + Riverine along stream within boundary of depression Depressional Depressional + Lake Fringe Depressional Riverine + Lake Fringe Riverine Salt Water Tidal Fringe and any other class of freshwater wetland Treat as ESTUARINE If you are still unable 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 System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 4 WSDOT Adapted Form - January 14, 2015 Wetland name or number SLOPE WETLANDS Water Quality Functions - Indicators that the site functions to improve water quality S 1.0. Does the site have the potential to improve water quality? S 1.1. Characteristics of the average slope of the wetland: (a 1% slope has a 1 ft vertical drop in elevation for every 100 ft of horizontal distance) Slope is 1 % or less points = 3 1 Slope is > 1 % - 2% points = 2 Slope is > 2% - 5% points = 1 Slope is greater than 5% points = 0 S 1.2. The soil 2 in below the surface (or duff layer) is true clay or true organic 0 (use NRCS definitions): Yes = 3 No = 0 S 1.3. Characteristics of the plants in the wetland that trap sediments and pollutants: Choose the points appropriate for the description that best fits the plants in the wetland. Dense means you have trouble seeing the soil surface (>75% cover), and uncut means not grazed or mowed and plants are higher than 6 in. Dense, uncut, herbaceous plants > 90% of the wetland area points = 6 1 Dense, uncut, herbaceous plants >'/2 of area points = 3 Dense, woody, plants >'/Z of area points = 2 Dense, uncut, herbaceous plants > % of area points = 1 Does not meet any of the criteria above for plants points = 0 Total for S 1 Add the points in the boxes above 2 Rating of Site Potential If score is: ❑ 12 = H ❑6 -11 = M [J]0 - 5 = L Record the rating on the first page S 2.0. Does the landscape have the potential to support the water quality function of the site? S 2.1. Is > 10% of the area within 150 ft on the uphill side of the wetland in 0 land uses that generate pollutants? Yes = 1 No = 0 S 2.2. Are there other sources of pollutants coming into the wetland that are not listed in question S 2.1? 0 Other Sources Yes = 1 No = 0 Total for S 2 Add the points in the boxes abovel 0 Rating of Landscape Potential If score is: ❑1 - 2 = M RI0 = L Record the rating on the first page S 3.0. Is the water quality improvement provided by the site valuable to society? S 3.1. Does the wetland discharge directly (i.e., within 1 mi) to a stream, river, 0 lake, or marine water that is on the 303(d) list? Yes = 1 No = 0 S 3.2. Is the wetland in a basin or sub -basin where water quality is an issue? 0 At least one aquatic resource in the basin is on the 303(d) list. Yes = 1 No = 0 S 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality? Answer YES if there is a TMDL for the basin in 0 which the unit is found? Yes = 2 No = 0 Total for S 3 Add the points in the boxes above 0 Rating of Value If score is: ❑ 2 - 4 = H ❑ 1 = M 2 0 = L Record the rating on the first page Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 WSDOT Adapted Form - January 14, 2015 Wetland name or number SLOPE WETLANDS Hydrologic Functions - Indicators that the site functions to reduce flooding and stream erosion S 4.0. Does the site have the potential to reduce flooding and stream erosion? S 4.1. Characteristics of plants that reduce the velocity of surface flows during storms: Choose the points appropriate for the description that best fits conditions in the wetland. Stems of plants should be thick enough (usually > 118 in), or dense enough, to remain erect during surface flows. 0 Dense, uncut, rigid plants cover > 90% of the area of the wetland points = 1 All other conditions points = 0 Rating of Site Potential If score is: ❑1 = M DO = L Recora me rating on me tirsr page S 5.0. Does the landscape have the potential to support hydrologic functions of the site? S 5.1. Is more than 25% of the area within 150 ft upslope of wetland in land 0 uses or cover that generate excess surface runoff? Yes = 1 No = 0 Rating of Landscape Potential If score is: ❑ 1 = M El 0 = L Record the rating on the first page S 6.0. Are the hydrologic functions provided by the site valuable to society? S 6.1. Distance to the nearest areas downstream that have flooding problems - The sub -basin immediately down -gradient of site has flooding problems that result in damage to human or natural resources (e.g., 0 houses or salmon redds) points = 2 Surface flooding problems are in a sub -basin farther down -gradient points = 1 No flooding problems anywhere downstream points = 0 S 6.2. Has the site been identified as important for flood storage or flood 0 conveyance in a regional flood control plan? Yes = 2 No = 0 Total for S 6 Add the points in the boxes above 0 Rating of Value If score is: ❑ 2 - 4 = H ❑ 1 = M LJ0 = L NOTES and FIELD OBSERVATIONS: Kecora the rating on me nrsr page Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 6 WSDOT Adapted Form - January 14, 2015 Wetland name or number These questions apply to wetlands of all HGM classes. HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold of % ac or more than 10% of the unit if it is smaller than 2.5 ac. Add the number of structures checked. ❑ Aquatic bed 4 structures or more: points = 4 ❑ Emergent 3 structures: points = 2 ❑ Scrub -shrub (areas where shrubs have > 30% cover) 2 structures: points - 1 0 Forested (areas where trees have > 30% cover) 1 structure: points = 0 If the unit has a Forested class, check if: R 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 H 1.2. Hydroperiods Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or %4 ac to count (see text for descriptions of hydroperiods ). ❑ Permanently flooded or inundated 4 or more types present: points = 3 ❑ Seasonally flooded or inundated 3 types present: points = 2 1 ❑ Occasionally flooded or inundated 2 types present: points = 1 121 Saturated only 1 types present: points = 0 ❑ Permanently flowing stream or river in, or adjacent to, the wetland E Seasonally flowing stream in, or adjacent to, the wetland ❑ Lake Fringe wetland 2 points ❑ Freshwater tidal wetland 2 points H 1.3. Richness of plant species 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 and you do not have to name the species. Do not include Eurasian milfoil, reed canarygrass, purple loosestrife, Canadian thistle If you counted: > 19 species points = 2 5 - 19 species points = 1 < 5 species points = 0 H 1.4. Interspersion of habitats Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1. 1), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, low, or none. If you have four or more plant classes or three classes and open water, the rating is always high. (D (*) ( 0 ) 0 None = 0 points Low = 1 point Moderate = 2 points All three diagrams--'-�-- -- -- _ in this row are = HIGH 3 points Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 7 WSDOT Adapted Form - January 14, 2015 Wetland name or number H 1.5. Special habitat features: Check the habitat features that are present in the wetland. The number of checks is the number of points. ❑ Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long) 0 Standing snags (dbh > 4 in) within the wetland ❑ Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m) 2 ❑ Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet weathered where wood is exposed) ❑ At least % ac of thin -stemmed persistent plants or woody branches are present in areas that are permanently or seasonally inundated (structures for egg -laying by amphibians) 0 Invasive plants cover less than 25% of the wetland area in every stratum of plants (see H 1.1 for list of strata) Total for H 1 Add the points in the boxes above 5 Rating of Site Potential If Score is: ❑ 15 -18 = H ❑ 7 -14 = M E] 0 - 6 = L Record the rating on the page H 2.0. Does the landscape have the potential to support the habitat function of the site? H 2.1 Accessible habitat (include only habitat that directly abuts wetland unit). Calculate: 0 % undisturbed habitat + ( 35 % moderate & low intensity land uses / 2) = 17.5% If total accessible habitat is: 1 > 1/3 (33.3%) of 1 km Polygon points = 3 20 - 33% of 1 km Polygon points = 2 10 - 19% of 1 km Polygon points = 1 < 10 % of 1 km Polygon points = 0 H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: 35 % undisturbed habitat + ( 40 % moderate & low intensity land uses / 2) = 55% 3 Undisturbed habitat > 50% of Polygon points = 3 Undisturbed habitat 10 - 50% and in 1-3 patches points = 2 Undisturbed habitat 10 - 50% and > 3 patches points = 1 Undisturbed habitat < 10% of 1 km Polygon points = 0 H 2.3 Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points = (-2) 0 s 50% of 1 km Polygon is high intensity points = 0 Total for H 2 Add the points in the boxes above 4 Rating of Landscape Potential If Score is: EZ 4 - 6 = H ❑ 1 - 3 = M ❑ < 1 = L Record the rating on the first page H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score that applies to the wetland being rated. Site meets ANY of the following criteria: points = 2 ❑ It has 3 or more priority habitats within 100 m (see next page) ❑ It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) ❑ It is mapped as a location for an individual WDFW priority species 1 ❑ It is a Wetland of High Conservation Value as determined by the Department of Natural Resources ❑ It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan Site has 1 or 2 priority habitats (listed on next page) with in 100m points = 1 Site does not meet any of the criteria above points = 0 Rn+inn of Vnhia If Rnnra is• 11 9 = W .1 1 = M I i n = i Rarnrrl Me rating nn thy± first naae Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 8 WSDOT Adapted Form - January 14, 2015 Wetland name or number WDFW Priority Habitats Priority habitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympia, Washington. 177 pp. htt .//wcifw.wa. ov! ubiir,ations/00165/wdfw00165. df or access the list from here: htt ://wdfw.wa, ov/conservation/ hs/list/ Count how many of the following priority habitats are within 330 ft (100 m) of the wetland unit: NOTE: This question is independent of the land use between the wetland unit and the priority habitat. ❑ Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha). ❑ 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). ❑ Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. El Old-growth/Mature forests: Old -growth west of Cascade crest — Stands of at least 2 tree species, forming a multi -layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) > 32 in (81 cm) dbh or > 200 years of age. Mature forests — Stands with average diameters exceeding 21 in (53 cm) dbh; crown cover may be less than 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: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 — see web link above). ❑ 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— see web link above). ❑ 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 WDFW report — see web link on previous page). ❑ 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 25 ft (7.6 m) high and occurring below 5000 ft elevation. ❑ Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0.15 - 2.0 m), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. RI 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 > 20 in (51 cm) in western Washington and are > 6.5 ft (2 m) in height. Priority logs are > 12 in (30 cm) in diameter at the largest end, and > 20 ft (6 m) long. Note: All vegetated wetlands are by definition a priority habitat but are not included in this list because they are addressed elsewhere. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 9 WSDOT Adapted Form - January 14, 2015 Wetland name or number I'_ATFr.0Rl7ATl0N RASED ON SPECIAL CHARACTERISTICS ------ ----------- Wetland Type Category Check off ar;y criteria that apply to the wetland. List the card ory when the a ro riate criteria are met. SC 1.0. Estuarine Wetlands Does the wetland 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 ❑ No = Not an estuarine wetland SC 1.1. Is the wetland within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC 332-30-151? ❑ Yes = Category I ❑ No - Go to SC 1.2 SC 1.2. Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions? ❑ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. (If non-native species are Spartina , see page 25) ❑ At least % 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 two of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. ❑ Yes = Catesory I ❑ No = Category II SC 2.0. Wetlands of High Conservation Value (WHCV) SC 2.1. Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High Conservation Value? ❑Yes - Go to SC2.2 ❑No - Go to SC2.3 SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? ❑ Yes = Category I ❑ No = Not WHCV SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? htlr)'//wwwl.dnr.wa. ov/nh/refdesk/datasearch/wnhPwetlands.odf ❑ Yes - Contact WNHP/WDNR and to SC 2.4 ❑ No = Not WHCV SC 2.4. Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Value and listed it on their website? ❑ Yes = Category I ❑ No = Not WHCV SC 3.0. Bogs Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below. If you answer YES you will still need to rate the wetland based on its functions. SC 3.1. Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or more of the first 32 in of the soil profile? ❑ Yes - Go to SC3.3 ❑ No - Go to SC3.2 SC 3.2. Does an area within the wetland unit have organic soils, either peats or mucks, that are less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on top of a lake or pond? ❑Yes - Go to SC3.3 ❑ No=Isnot a bog SC 3.3. Does an area with peats or mucks have more than 70% cover of mosses at ground level, AND at least a 30% cover of plant species listed in Table 4? ❑ Yes = Is a Category I bog ❑ No - Go to SC 3.4 NOTE: If you are uncertain about the extent of 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 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present, the wetland is a bog. SC 3.4. Is an area with peats or mucks forested (> 30% cover) with Sitka spruce, subalpine fir, western red cedar, western hemlock, Iodgepole pine, quaking aspen, Engelmann spruce, or western white pine, AND any of the species (or combination of species) listed in Table 4 provide more than 30% of the cover under the canopy? I I Yes - is a Category I bog ❑ No = is not a bog[ Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 10 WSDOT Adapted Form - January 14, 2015 Wetland name or number SC 4.0. Forested Wetlands Does the wetland have at least 1 contiguous acre of forest that meets one of these criteria for the WA 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/ac (20 trees/ha) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 in (81 cm) or more. ❑ Mature forests (west of the Cascade Crest): Stands where the largest trees are 80- 200 years old OR the species that make up the canopy have an average diameter (dbh) exceeding 21 in (53 cm). ❑ Yes = Cate o I ❑ No = Not a forested wetland for this section SC 5.0. Wetlands in Coastal Lagoons 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 ponded 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 measured near the bottom) ❑ Yes - Go to SC 5.1 ❑ No = 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, grazing), and has less than 20% cover of aggressive, opportunistic plant species (see list of species on p. 100). ❑ At least $/ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un- grazed or un-mowed grassland. ❑ The wetland is larger than'/10 ac (4350 ft2) ❑ Yes = Category I ❑ No = Cate_qory II SC 6.0. Interdunal Wetlands Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? If you answer yes you will still need to rate the wetland based on its habitat functions. In practical terms 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 SR 109 ❑ Yes - Go to SC 6.1 ❑ No = Not an interdunal wetland for rating SC 6.1. Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form (rates H,H,H or H,H,M for the three aspects of function)? ❑ Yes = Category I ❑ No - Go to SC 6.2 SC 6.2. Is the wetland 1 ac or larger, or is it in a mosaic of wetlands that is 1 ac or larger? ❑ Yes = Category II ❑ No - Go to SC 6.3 SC 6.3. Is the unit between 0.1 and 1 ac, or is it in a mosaic of wetlands that is between 0.1 and 1 ac? ❑ Yes = Categou III ❑ No = Category Iv Category of wetland based on Special Characteristics If you answered No for all types, enter "Not Applicable" on Summwy Form Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 11 WSDOT Adapted Form - January 14, 2015 0 7 R 7 z z a S S 0 m z O c, e 1�1 A IY ,4 Y y ? Q 3 � 'IJf rt. NI INE h �drti'6y a = u 1 E ro n 6crlc; Y T I n M1 y. W 13PGC £NVIRONM£NTAL, LLG. Wetland consulting and Land Use planning vo2 t3rashem Ave t3remerton, WA gS310 (3(0o) 110 - (00(0(0 www. bgeenvironmental, com