Loading...
HomeMy WebLinkAboutTahuya Wetland Delinieation - PLN General - 11/18/2020 Ecological Land Services TAHUYA DELINEATION November 18, 2020 S x 7 iI y Delineation Report Tahuya, Washington Prepared for Clyde Corbin PO Box 2594 Silverdale, WA 98383 (360) 271-2804 Prepared by Ecological Land Services, Inc. 1157 3rd Avenue, Suite 220A • Longview, WA 98632 (360) 578-1371 • Project Number 3272.01 TABLE OF CONTENTS INTRODUCTION..........................................................................................................................1 METHODOLOGY......................................................................................................................... 1 SITEDESCRIPTION ......................................................................................................................1 VEGETATION.............................................................................................................................2 SOILS......................................................................................................................................2 WETLAND AND STREAM HYDROLOGY..............................................................................................3 NATIONAL WETLAND INVENTORY...................................................................................................4 MASONCOUNTY CRITICAL AREAS...................................................................................................4 CONCLUSIONS...........................................................................................................................4 WETLAND CATEGORIZATION ..............................................................................................................4 CRITICALAREA REGULATIONS.............................................................................................................4 REFERENCES..............................................................................................................................6 FIGURES&PHOTOPLATES Figure 1 Vicinity Map Figure 2 Site Map Figure 3 Soil Survey Map Figure 4 National Wetlands Inventory Figure 5 Mason County Critical Areas Map Figure 6 Wetland Rating Form-150'Offset Figure 7 Wetland Rating Form-1 KM Offset Figure 8 Wetland Rating Form Contributing Basin Figure 9 Wetland Rating Form-303(d) and TMDL Photoplates Site Photos APPENDIX A Wetland Determination Data Forms APPENDIX B Western Washington Wetland Rating Forms Wetland A Wetland B Corbin—Tahuya Delineation Ecological Land Services,Inc. Delineation Report i November 9,2020 SIGNATURE PAGE The information and data in this report were compiled and prepared under the supervision and direction of the undersigned. Laura Westervelt Biologist Corbin—Tahuya Delineation Ecological Land services,Inc. Delineation Report ii November 9,2020 INTRODUCTION Ecological Land Services, Inc. (ELS) was contracted by Clyde Corbin to complete a wetland delineation and report for the property located on NE Tahuya River Road, Mason County Parcel Number 322127500110, in Tahuya, Washington. The property is within a portion of Section 12, Township 22 North, Range 3 West of the Willamette Meridian, in Mason County, Washington (Figure 1). This report summarizes the findings of the wetland delineation and categorization according to the Mason County Code (MCC), Chapter 8.52.110 Wetlands for wetland categorization and required buffer widths. METHODOLOGY The onsite wetland determination followed the Routine Determination Method according to the U.S. Army Corps of Engineers, Wetland Delineation Manual (Environmental Laboratory 1987) and the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys and Coast Region, Version 2.0 (U.S. Army Engineer Research and Development Center, 2010). The Routine Determination Method examines three parameters—vegetation, soils, and hydrology—to determine if wetlands exist in a given area. Hydrology is critical in determining what is wetland, but is often difficult to assess because hydrologic conditions can change periodically (hourly, daily, or seasonally). Consequently, it is necessary to determine if hydrophytic vegetation and hydric soils are present, which would indicate that water is present for long enough duration to support a wetland plant community. By definition, wetlands are those areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands are regulated as "Waters of the United States" by the U.S. Army Corps of Engineers (USACE), as "Waters of the State" by the Washington Department of Ecology(Ecology), and locally by Mason County. To determine the wetland boundaries, ELS collected data on vegetation, soils, and hydrology. During the site visit on August 26, 2020, two wetlands and two streams were identified onsite. There were no offsite wetlands noted that might have buffers extending onsite. Vegetation, hydrology, and soil data was collected at seven test plots to verify the wetland boundaries (Appendix A). Consecutively numbered florescent flagging labeled "Wetland Delineation" were hung. The boundaries were determined through breaks in topography, changes in vegetation, and changes in water regime. Test plots, boundary flags, and ordinary high water marks (OHWM) were located using GPS to show their location on the site map (Figure 2). SITE DESCRIPTION The 5.23-acre property is located northwest of Tahuya, Washington, and accessed by NE Tahuya River Road (Figure 1). An existing driveway accesses the property from the road (Photoplate 1). The property is entirely undeveloped. There is a gently sloping terrace on the west half of the property that drops off an extremely steep bluff near the middle of the property (Photoplates 3 Corbin—Tahuya Delineation Ecological Land Services,Inc. Delineation Report 1 November 9,2020 and 7). There is another terrace at the toe of the bluff that slopes down gently to the ordinary high water mark of the Tahuya River (Photoplate 4). The west half of the property is dominated by a coniferous forest composed of Douglas fir (Pseudotsuga menziesii). The east half of the property is dominated by deciduous tree cover composed of bigleaf maple (Acer macrophyllum) and red alder (Alnus rubra) (Photoplates 2 and 4). Two wetlands were identified and delineated onsite. Wetland A is a riverine system associated with the Tahuya River that begins at the toe of the steep bluff and continues to the OHWM of the river (Photoplates 3 and 4). Wetland B is a depressional system positioned near the northwest property corner and continuing offsite to the north (Photoplate 8). There is a Type Ns stream which comes onsite at the north property line and the Tahuya River is a shoreline water (Photoplates 2 and 5). VEGETATION Wetland A is a riverine forested wetland that is dominated by vine maple (Acer circinatum, FAC), piggy-back plant (Tolmiea menziesii, FAC), lady fern (Athyrium cyclosorum, FAC), and palmate coltsfoot (Petasites palmatus, FACW). Bigleaf maple (Acer macrophyllum, FACU) was not rooted in the wetland but overhung the wetland boundary. Wetland B is a depressional forested wetland that is dominated by red alder (Alnus rubra, FAC), vine maple (Acer circinatum, FAC), slough sedge (Carex obnupta, OBL), and trailing blackberry(Rubus ursinus, FACU). Upland vegetation is dominated by Douglas fir (Pseudotsuga menziesii, FACU), western hemlock (Tsuga heterophylla, FACU), western redcedar (Thuja plicata, FAC), and bigleaf maple (Acer macrophyllum, FACU) in the tree layer. The shrub layer is dominated by vine maple (Acer circinatum, FAC), dull Oregon grape (Mahonia nervosa, FACU), salal (Gaultheria shallon, FACU), and beaked hazelnut (Corylus cornuta, FACU). Sword fern (Polystichum munitum, FACU), lady fern (Athyrium cyclosorum, FAC), vanilla leaf (Achlys triphylla, UPL), piggy-back plant (Tolmiea menziesii, FAC), and birds-foot trefoil (Lotus corniculatus, FACU) dominate the herbaceous layer. The dominant vegetation found onsite is recorded on the attached wetland determination data forms (Appendix A). The indicator status, following the common and scientific names, indicates how likely a species is to be found in wetlands. Listed from most likely to least likely to be found in wetlands,the indicator status categories are: ■ OBL (obligate wetland)—Almost always occur in wetlands. ■ FACW (facultative wetland)—Usually occur in wetlands, but may occur in non-wetlands. ■ FAC (facultative)—Occur in wetlands and non-wetlands. ■ FACU (facultative upland)—Usually occur in non-wetlands, but may occur in wetlands. ■ UPL(obligate upland)—Almost never occur in wetlands. ■ NI (no indicator)—Status not yet determined. SOILS As referenced on the Natural Resources Conservation Service (NRCS 2020) website, the soils Corbin—Tahuya Delineation Ecological Land Services,Inc. Delineation Report 2 November 9,2020 mapped onsite include Alderwood gravelly sandy loam, 8 to 15 percent slopes (Ab), and Everett very gravelly sandy, loam 15 to 30 percent slopes (Ek) and Juno sandy loam, 0 to 3 percent slopes (Jd) (Figure 3). Alderwood, Everett and Juno soils are not classified as hydric (NRCS 2018). Areas mapped as hydric soils do not necessarily mean that an area is or is not a wetland—hydrology, hydrophytic vegetation, and hydric soils must all be present to classify an area as a wetland. Wetland A was identified within the area mapped with Juno soils (id), and Wetland B was identified within the area mapped with Alderwood soils (Ab). Soil data in Wetland A revealed a dark brown (10YR 2/2) sandy loam in the first 10 inches with no redoximorphic features. In the 10-16 inches portion of the profile the soil was a dark grey-brown (10YR 4/2) gravely sandy loam. Redoximorphic features present at 3 percent concentrations of the matrix and were yellow-brown (10YR 5/8). The chroma and textures observed in the wetland are inconsistent with the mapped unit. The soil in Wetland A met hydric indicator F3, Depleted Matrix. Soil data in Wetland B revealed black (10YR 2/1) silt loam in the first 10 inches with no redoximorphic features. In the 10-16 inches portion of the profile the soil was dark grey (10YR 4/1) clay loam, with redoximorphic features present at 10 percent concentrations of the matrix that were dark yellow-brown (10YR 3/6). The soil in Wetland B met hydric indicator F3, Depleted Matrix. The upland soils evaluated onsite were composed of sandy silt loam with dark brown (10YR 3/2 to 10YR 3/3) matrix colors. None of the upland test plots met hydric indicators. Test Plot 2 was conducted in an area with mixed vegetation and saturation. The area was determined to be upland because the vegetation was not dominated by hydrophytic species and the soil did not meet hydric criteria. WETLAND AND STREAM HYDROLOGY Hydrology was observed in Wetland A during the August 26 ,2020 site visit as saturation to the soil surface. Wetland A is a riverine system that is partially fed by groundwater seepage and partially fed by seasonal flooding by the Tahuya River. The portion of Wetland A that is positioned near the toe of the bluff is sloping and fed by groundwater discharge. The terrace adjacent to the river is influenced by river flooding. Test Plot 2 was conducted in an area that resembled wetland conditions near the intermittent channel that was saturated to the surface. The area did not meet hydrophytic vegetation or hydric soil criteria and was determined to be upland. The water is likely due to seasonal changes in hydrology but is insufficient to support wetland conditions. Hydrology was observed in Wetland B as a water table at 10 inches below the soil surface. Wetland B is a depressional system that is seasonally flooded. The Tahuya River is designated as a Type S water according to Mason County. Water was flowing through the river during the late summer site visit, but flows were low. The channel occurs on a grade less than 16 percent and is greater than 20 feet on average, which supports the Type S Corbin—Tahuya Delineation Ecological Land Services,Inc. Delineation Report 3 November 9,2020 designation. The Type Ns channel was positioned on a grade greater than 16 percent and was less than 2 feet wide, which supports the Type Ns designation. NATIONAL WETLAND INVENTORY The National Wetlands Inventory (NWI) map does not indicate the presence of wetlands on or near the property but does indicate the presence of riverine systems in the approximate location of the Tahuya River and the side channel (Figure 4). The findings of the ELS site visit identified Wetland A between the toe of the bluff and the Tahuya River and Wetland B near the northwest corner of the property (Figure 2).1 MASON COUNTY CRITICAL AREAS The Mason County Critical Areas Map (MC 2020) identifies the presence of the Tahuya River as a shoreline water and the Type Ns channel in the approximate location it was mapped (Figure 5). ELS biologists identified Wetland A in the east half of the property and Wetland B in the northwest corner of the property. CONCLUSIONS WETLAND CATEGORIZATION Wetland A is on a terrace adjacent to the Tahuya River, and Wetland B is situated in a narrow depression near the northwest property corner. The wetlands were rated according to Washington State Wetlands Rating System for Western Washington-2014 Update (Rating System) (Hruby 2014). The rating is summarized in Table 1 below. Table 1: Wetland Ratings Wetland HGM Class Vegetation 2014 Wetland Rating System Wetland Class Water Hydrologic Habitat Total Category Quality A Riverine Forested 5 5 7 17 III B Depressional Forested 6 3 6 15 IV CRITICAL AREA REGULATIONS The MCC Chapter 8.52.110 specifies wetland buffers based on the wetland category and the intensity of land use proposed. The land use is assumed to be moderate because residential development on greater than one acre will likely be proposed. The MCC Chapter 8.52.170 specifies stream buffers based on the water type. A 15-foot building and impervious surface setback is specified from the edge of the wetland and stream buffers. The required buffer widths are summarized in Table 2 below. When a wetland falls within shoreline jurisdiction, as Wetland A does,the greater of the two buffers is used. Therefore, Wetland A requires the same buffer as the Tahuya River. The NWI maps should be used with discretion because they are used to gather general wetland information about a regional area and therefore are limited in accuracy for smaller areas because of their large scale. Corbin—Tahuya Delineation Ecological Land Services,Inc. Delineation Report 4 November 9,2020 Table 2. Critical Areas Buffers Critical Area Type/Category Habitat Score Required Buffer Wetland A Category III 7 150 feet Wetland B Category IV 6 40 feet Tahuya River S - 150 feet Unnamed channel Ns - 75 feet LIMITATIONS ELS bases this report's determinations on standard scientific methodology and best professional judgment. In our opinion, local, state, and federal regulatory agencies should agree with our determinations. However, the information contained in this report should be considered preliminary and used at your own risk until it has been reviewed and approved in writing by the appropriate regulatory agencies. ELS is not responsible for the impacts of any changes in environmental standards, practices, or regulations after the date of this report. Corbin—Tahuya Delineation Ecological Land Services,Inc. Delineation Report 5 November 9,2020 REFERENCES Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-1. U.S. Army Corps of Engineer Waterways Experiment Station, Vicksburg, Mississippi. Hruby, T. 2014. Washington State Wetland Rating System for Western Washington, 2014 Update. Washington State Department of Ecology Publication #14-06-029. Olympia, Washington. Effective January 1, 2015. Mason County. Critical Areas Inventory Parcel Search Website. 2020. https://gis.co.mason.wa.us/mason/. Website accessed November 2020. Mason County Code (MCC). 2020. Chapter 8.52.110 Wetlands and Chapter 8.52.170 Fish and Wildlife Habitat Conservation Areas. Mason County, Washington. Natural Resource Conservation Service (NRCS). 2020. WA635 Mason County Area. Online document <http•//www.or.nres.usda.gov/pnw soil/wa reports.html>. Website accessed November 2020. Natural Resource Conservation Service (NRCS). 2018. Washington Hydric Soils List. Online document. <http•//www nres.usda.gov/wps/portal/nres/main/soils/use/hydric/>. Website Accessed November 2020. U.S. Army Corps of Engineers (USACE). 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (Version 2.0), ed. J.S. Wakeley, R.W. Lichvar, and C.V. Noble. ERDC/EL TR-08-13. Vicksburg, Mississippi: U.S. Army Engineer Research and Development Center. Corbin—Tahuya Delineation Ecological Land Services,Inc. Delineation Report 6 November 9,2020 FIGURES& PHOTOPLATES 11/1 /2 20 9:15 AM :\ er \ri h\Box\EL \WA\Ma n\Con \3272- r in\ 72.01-ahu a Jelin a ion\ 272. 1-fi ur s\3272.01 DL.dwQ right r p Z O r m Q N 0 u' � � � y $ CA °o — w _ —, o r m •��y r ( i �.k Z c CL Xw m 4 ` c O • • C is '�y•. r11i�' "'��"7 . .fff✓a � C Cn v f l .y ,\ r o zQv r T fn j"1 A i a Z y o o o � O DATE: 11/18/20 Figure 1 1157 3rd Ave.,Suite 220A DWN: JLL VICINITY MAP 0 2000 4000 Longview,WA 98632 REQ.BY: Tahuya Delineation z Phone:(360)578-1371 PRJ.MGR:LW Clyde Corbin SCALE IN FEET Eco 'cal Fax:(360)414-9305 CHK: Mason County WA www.eco-land.com PROJECT NO: Section 12,Township 22N, Range 3W,W.M. m Land Services 3272.01 11/18/2020 9:15 AM c:\Users\right\Box\ELS\WA\Mason\County\3272-corbin\3272.01-tahuya delineation\3272.01-fig ures\3272.01_DL.dwg right - �✓ Type Ns Channel Wetland B / Category IV / Slope Forested z Tll� Seasonally Flooded Culvert TP-7• TP-2 I At3 , 1 Side.. 1 ChaMel Tahuya River • 1 (Type S) TP-5 � 1 TP-4•:'` TP15Q t—• *,TP • i Top of Slope LEGEND: �•� Site Boundary -- Wetland Boundary :Cqt gor A l Approx. Wetland Boundary -Wetland Buffer Forested_ OHWM ..8"aorially Flooded ; Permanently Flowing Stream Buffer Streem. -.. GTP-1 Test Plot Location NOTE(s): 1• Aerial from Google EarthTm. 2. Wetland and test plots located using handheld GPS with submeter aecuracy„ ,< :• N r DATE: 11/18/20 Figure 2 1157 3rd Ave.,suite 220A DWN: JLL SITE MAP 0 120 240 Longview,WA 98632 REQ.BY: Tahuya Delineation w E Phone:(360)578-1371 PRJ.MGR:LW Clyde Corbin SCALE IN FEET E� ;�' Fax:(360)414-9305 CHK: Mason County WA www.eco-Iand.com PROJECT NO: Section 12,Township 22N, Range 3W,W.M. 5 Land Services 3272.01 11/18/2020 9:15 AM c:\Users\ri-ght\Box\ELS\WA\Mason\Count \3272-corbin\3272.01-tahu a delineation\3272.01-fi ures\3272.01 DL.dw ri ht � z O o Q �• C- m 0 CD a ;. � mDcn m .+' . c < — r: CD o � � W m N Z V) O Z i nyli .rL f D fl d NED 1 3 < CD t, Q- Q.1< .s ... !- m 3 3 • 'F " K.. CD CD �. .w d r f CD CD At 0 CD a i Z .+ M. s Y Q n ♦ 1 .. T 4 9,, '' DATE: 11/18/20 Figure 3 1157 3rd Ave.,Suite 220A DWN: JLL SOIL SURVEY 0 300 600 Tahuya Delineation Longview,WA 98632 REQ.BY: z Phone:(360)578-1371 PRJ.MGR:LW Clyde Corbin SCALE IN FEET Ego 'cal Fax:(360)414-9305 CHK: Mason County WA www.eco-land.com PROJECT NO: Section 12,Township 22N, Range 3W,W.M. m Land Services 3272.01 11/18/2020 9:15 AM c:\Users\right\Box\ELS\WA\Mason\Coun \3272-corbin\3272.01-tahu a delineation\3272.01-fi ures\3272.01 DL.dw ri ht � z O N 0 N 0 n �J -n rCD " w . °_ M. m � m z 'm c c CD v 0 m cn co m o -D - o 0 (n • 90 CD GG -C CD I S 6(D Q n L (!) CD Q Cr 0 1 O fll < Q Q Ill CD CD Q < a n CD Q y a a y C � J• O C Q CA C C (D N 0 O O `G O O m OCL n a m m m x a DATE: 11/18/20 Figure 4 1157 3rd Ave.,Suite 220A DWN: JLL NATIONAL WETLANDS INVENTORY 0 500 1000 Longview,WA 98632 REQ.BY: Tahuya Delineation Z Phone:(360)578-1371 PRJ.MGR:LW Clyde Corbin SCALE IN FEET Eco 'Ca' Fax:(360)414-9305 CHK: Mason County,WA www.eco-land.com PROJECT NO: Section 12, Township 22N, Range 3W,W.M. m Land Services 3272.01 11/18/2020 9:15 AM c:\Users\ri ht\Box\ELS\WA\Mason\Coun \3272-corbin\3272.01-tahu a delineation\3272.01-fi ures\3272.01 DL.dwq right 2 9 m to i I u s u �! o. s Z r fl. oCA n aQp I ; t ttj O pp { 8 y it a 2 s e CL To' J 1 CD < T T S i m Q o v > > I o r > > 0 QCL � ! t 07 CND O 1 N _ A .m n - = j O O n O 40 7 II c u 3 m W 22 D a o ^ t �. .2 3 0 y ; 3 ! 0 o m II 0 N m 3 N 11 o � � l N DATE: 11/18/20 Figure 5 1157 3rd Ave.,Suite 220A DWN: JLL MASON COUNTY CRITICAL AREAS 0 300 600 Longview,WA98632 REQ.BY: Tahuya Delineation z Phone:(360)578-1371 PRJ.MGR:LW Clyde Corbin SCALE IN FEET ECD ;�' Fax:(360)414-9305 CHK: Mason County,WA www.eco-land.com PROJECT NO: Section 12, Township 22N, Range 3W,W.M. m Land Services 3272.01 11/18/2020 9:15 AM c:\Users\ri ht\Box\ELS\WA\Mason\Count \3272-corbin\3272.01-tahu a delineation\3272.01-figures\3272.01 DL.dwq right T I Co O _. C iJ' G i O 0 N m I Q C/) -n CA 0 /� 1 VJ yi 7 V 0 M CD (a ty =CD j' < W (n .� (D l N 0 -... (D 0 M - 0) 0 (D Q CL --- _ M 0 D C `� a _ �. -0 o m o ova o :: CL m a c C: CID CL C"L C0 " �. 2 U a d - 0 0 DATE: 11/18/20 Figure 6 1157 3rd Ave.,Suite 220A DWN: JLL WETLAND RATING FORM-150'OFFSET 0 250 500 Longview,WA 98632 REQ.BY: Tahuya Delineation z Phone:(360)578-1371 PRJ.MGR:LW Clyde Corbin SCALE IN FEET Eco 5 Fax:(360)414-930S CHK: Mason County,WA www'eco-land.com PROJECT NO: Section 12, Township 22N, Range 3W,W.M. m Land Services 3272.01 11/18/2020 9:15 AM c:\Users\ri ht\Box\ELS\WA\Mason\Coun \3272-corbin\3272.01-tahu a delineation\3272.01-fi ures\3272 01 DL dw ri ht N ' -t o D cn r 1 0 m m Ic (Aa o Z 1 c G CF a° C p 0 ©c = 3 C N Q coo Q p LT ID v a a ¢ - + m 10 7 'a 7 ACD 7 _ + ZD D cDi 0 z \ 9 ® _ N 0 Q — Q ,Fd NXCk — , W r - . C. > .. N C N y r o W N II 11 = C 7 � Q tDD V 'D C CA) O Q. V o o a oo -1 o n. N Cr of °•P rt DATE: 11/18/20 Figure 7 1157 3rd Ave.,Suite 220A DWN: JLL WETLAND RATING FORM-1 KM OFFSET 0 1300 2600 Longview,WA98632 REQ.BY: Tahuya Delineation z Phone:(360)578-1371 PRJ.MGR:LW Clyde Corbin SCALE IN FEET Eco ;�' Fax:(360)414-9305 CHK: Mason County WA www.eco-land.com PROJECT NO: Section 12,Township 22N, Range 3W,W.M. m Land Services 3272.01 11/18/2020 9:15 AM c:\Users\ri ht\Box\ELS\WA\Mason\Count \3272-corbin\3272.01-tahu a delineation\3272.01-fi ures\3272.01 DL.dw ri ht Dd♦ 7 ♦ Cl) `�. C s� �r w = m _ a° `� _ , ram• �•� 1 r r w v yr ♦, !w• "•�,��•��'� of .W-1 s r �r J Y jeae-r•s�sr:ter.�isr - - ri e • ♦r 16 jk— a r • r e � w� `MI.I. DATE: 11/18/20 Figure 8 115 7 3rd Ave.,Suite 220A DWN: JLL WETLAND RATING FORM CONTRIBUTING BASIN 0 10000 2000 Longview,WA 98632 REQ.BY: Tahuya Delineation Z Phone:(360)578-1371 PRJ.MGR:LW Clyde Corbin SCALE IN FEET • Fax:(360)414-9305 CHK: Mason County WA Eco gica www,eco-land.com PROJECT NO: Section 12,Township 22N, Range 3W,W.M. IL A m Land Services 3272.01 11/18/2020 9:15 AM c:\Users\ri ht\Box\ELS\WA\Mason\Count \3272-corbin\3272.01-tahu a del ineation\3272.01-fi ures\3272.01 DL.dwq right D 0 n� iv v v v m y 0 0 --0 J0 W m (0 (0 (0 (0 (0 (0 � m ': CL 0 N .A � .A cn CL < D g (D mco o n R W CDCL a c t� (D r(D �3(Dilk :,� �*^V �Ii •,:N(IN 0 0 n v N 0 (D (D m m (D m m — (0 (0 (0 (0 (0 (0 3 D CD N W "_ - m Z m = 0 m � mMv y 1 (D N n N "O 1 \ O O O - `< O CUI) n � T `� C - d , (D 3; '� ►` a (U 7 -i Mom.• ap a-0 CT y�r7�1 ?; a•IDr ; O N n N a� l% k \ N 3 �v � • _. V (D DATE: 11/18/20 Figure 9 1157 3rd Ave.,suite 220A DWN: JLL WETLAND RATING FORM-303(D)AND TMDL 0 3000 600 Longview,WA 98632 REQ.BY: Tahuya Delineation z Phone:(360)578-1371 PRJ. MGR:LW Clyde Corbin SCALE IN FEET Eco ww;�' Fax:(360)41a-93o5 CHK: Mason County,WA G vy www.eco-land.com PROJECT NO: Section 12, Township 22N, Range 3W,W.M. m Land Services 3272.01 �7f „ Photo 1 was taken from the west end of the property looking west at the gate which accesses the existing road. NE Tahuya River Road is on the other side of the gate. There is a gently slope down from the road to the property. Photo 2 was taken from the top of the steep bluff at the middle of the property x looking east towards the bluff. Topog- raphy drops off in this area. Photo 3 was taken of the area where Test Plot 1 was conducted. It is located near the south property line and at the top of the steep bluff. The test plot revealed upland vegetation, upland soils, and no Jr evidence of wetland hydrology. / •+r�M fa. 1157 3rd Ave.,Suite 220A DATE:11/18/20 Photoplate 1 Longview,WA 98632 DWN: LHW Tahuya Delineation Phone:(360)578-1371 PRJ.MGR: LHW Clyde Corbin o2roggiCea Fax:(360)414-9305 EC PROJ.#:3272.01 Mason County, Washington Land Services Photo 4 was taken from the north end of the onsite bluff looking east towards the bluff. This area appeared to be domi- nated by hydrophytic vegetation, so further investigation was warranted. . - � _fir ,- � f t' .-♦ y7-,�``*e.- ,R�'_ »__ Photo 5 was taken of the area where Test Plot 2 '" , k_ ? was conducted. It was located in an sa ". ' old road that appeared to exhibit hy- drophytic vegetation. Upon investiga- +' lion, the area did not meet any of the three wetland parameters and was de- , •� - '�''�1►► ,� termined to be upland. •� � f3• a � +7' , r►-« ,► '�+ �' �� Photo 6 was taken from the toe of the bluff be- low where Test Plot 2 was conducted. A Type Ns channel enters the north property line in this area and drains into Wetland A via a concrete culvert. 1157 3rd Ave.,Suite 220A DATE:11/18/20 Photoplate 2 Longview,WA98632 DWN: LHW Tahuya Delineation Phone: (360)578-1371 PR1. MGR: LHW Clyde Corbin Ex o ogical Fax:(360)414-9305 PROJ.#:3272.01 Mason County, Washington Land Services r� Photo 7 was taken from partway down the ' + ' steep bluff looking north along a game trail. The game trail made the steep slope traversable. The slope is vegetat- ed by bigleaf maple, vine maple, and sword fern. , a � ••'� Photo 8 was taken of the area where Test Plot 3 CAMA- ,, ' was conducted. It was located along the game trail where the soil became sticky and muddy. Upon investigation, 'max 1 ` �� ►.a _ the area met all three wetland parame- �. 'tti A• � � ' - ters. This area is in the west boundary of Wetland A. Photo 9 was taken of the area where Test Plot 4 was conducted. It is located in the up- MILO � �,� land upslope of Test Plot 3. The upland z• in this area was dominated by western r4,r3e_;u, ;� redcedar saplings and a sparse under- story of sword fern. Xxi- r '�_ - lam". Q � �•a;L: .'', �t�_ ���,�.��� 1157 3rd Ave.,Suite 220A DATE:11/18/20 Photoplate 3 Longview,WA98632 DWN: LHW Tahuya Delineation Phone:(360)578-1371 ECD'�a' Fax:(360)414-9305 PRJ.MGR: LHW Clyde Corbin g PROD.#:3272.01 Mason County, Washington Land Services Photo 10 was taken from partway down the steep bluff looking east at Wetland A r ^� where it is positioned between the toe of the slope and the Tahuya River. The wetland is dominated by red alder,vine maple, and lady fern. The portion of the wetland closest to the slope is pri- marily fed by groundwater discharge. Closer to the Tahuya River, hydrology is dominated by seasonal flooding of the river. a +, Photo 11 was taken from the side channel west Er , rd of the Tahuya River. The channel had water in it during the late summer site �'�* '� ► � r, �� �'� visit, but flow was quite low. Tf N i^ Z y> yy 4 s dr ,.. � �*,,;�•, Photo 12 was taken from the same location as Photo 11 looking south in the direction the side channel is flowing. The area was dominated by willows and vine ample and appeared to have recent beaver activity. This area also appears to be regularly flooded by the Tahuya River. i� 1157 3rd Ave.,Suite 220A DATE:11/18/20 Photoplate 4 Longview,WA 98632 DWN: LHW Tahuya Delineation Phone. (360)578-1371 PRJ.MGR: LHW Clyde Corbin Ecoo 3 ical Fax:(360)414-9305 PROD.#:3272.01 Mason County, Washington Land Services Photo 13 was taken from the west bank of the '� • t t Tahuya River looking north along the channel. The river was flowing slowly ' '`` ; - ��•;. , + �.►` ,{,ate-- during the late summer site visit. Photo 14 was taken from the same location as Photo 13 looking east across the river. '« v� The wetted portion of the channel was + . .,�, .., .,., •; - _ �, .; greater than 20 feet wide. The flood- -.•• . ,. , .� .. - -�. plain was in excellent condition, with gravel bars, riparian vegetation, woody debris, etc. The channel is allowed to migrate. - a. , ata.r y I• Si Photo 15 was taken from the same location as Photos 13 and 14 looking southeast as the river flows. Overhanging riparian vegetation was shading this part of the river and fish were seen using the deep, cool water. }, Ar 7. i� 1157 3rd Ave.,Suite 220A DATE:11/18/20 Photoplate 5 Longview,WA 98632 DWN: LHW Tahuya Delineation Phone: (360)578-1371 PRJ.MGR:LHW Clyde Corbin ECOry _a' Fax:(360)414-9305 .7 PROJ.#:3272.01 Mason County, Washington Land Services Photo 16 was taken from the west bank of the ,4 ��r� ¢rr` ..�� Tahuya River down at a muddy path- ,� '�`v �►�..� f .� �.' 4A '� a way that was likely left by beaver activi- +: ^iaMf F41 ty. .< 10. • * ,. r 3W - �1 k l ss�y ixml "J Photo 17 was taken from farther west into the e t y. "► , a �, i, vegetated wetland between the main channel and the side channel. Muddy j a.. r , .�,�,� _, ,\it.�a . , ✓,y-7y,��� paths indicated recent and ongoing 1 beaver activity in the area. Yd �3 z�_,t r�t�'. 'tea -'`�� ✓ x1 '' it•*+..ice �?. _ �, a r G- J`� L i Qyr - � .•,, •� �_ .,' 'rR Photo 18 was taken from the same location as •�• ^"�'&s ;s'' °�' 'C`>rr Photo 17. Chewed stumps also indicat- ed recent and ongoing beaver activity in the area. -7 - A✓� ft L n.y' a a+y�-b Ott ' w F• y , ,. �'r +�. ..:"� F"7 rTt 1157 3rd Ave.,Suite 220A DATE:11/18/20 Photoplate 6 Longview,WA 98632 DWN: LHW Tahuya Delineation Phone: (360)578-1371 PR1. MGR:LHW Clyde Corbin Ex o ogical Fax: (360)414-9305 PROD.#:3272.01 Mason County, Washington Land Services Photo 19 was taken from the upland terrace at the west half of the property. The up- land is dominated by Douglas fir trees, salal,vine maple,and sword fern. Photo 20 was taken from the same location as >a~ Photo 19 looking north. In the future, a single-family residence will be pro- posed in this approximate area. The ` �- area is level, upland, and outside any wetlands,streams,and buffers. Photo 21 was taken of the area where Test Plot 5 was conducted. It was located in the �✓ t approximate area that will eventually be used as a building site to indicate Yi , 10, that the area was unencumbered by critical areas. The area did not meet " - an of the three wetland y parameters and was determined to be upland. 1157 3rd Ave.,Suite 220A DATE:11/18/20 Photoplate 7 Longview,WA98632 DWN: LHW Tahuya Delineation Phone: (360)578-1371 pRJ. GR: LHW Clyde Corbin EC51' orryica� Fax:(360)414 9305 M 7 PROJ.#:3272.01 Mason County, Washington Land Services Photo 22 was taken of the area where Test Plot 7 was conducted. It is located outside the southwest boundary of Wetland B. The upland in this area is dominated by Douglas fir and low cover of sword fern. h' , s /�7��1 t +=sZ Photo 22 was taken from the boundary of Wet- land B looking north into the wetland. The wetland was narrow and dominat- ed by vine maple and slough sedge. -"WIWI Photo 24 was taken of the area where Test Plot "' 7y 6 was conducted. It was located in the boundary of Wetland B. The wetland had been delineated offsite to the north and some flags were found. 1157 3rd Ave.,Suite 220A DATE: 11/18/20 Photoplate 8 Longview,WA 98632 DWN: LHW Tahuya Delineation Phone:(360)578-1371 PRJ. MGR: LHW Clyde Corbin ECD1a' Fax:(360)414-9305 PROD.#:3272.01 Mason County, Washington Land Services APPENDIX A WETLAND DETERMINATION DATA FORM—Western Mountains,Valleys, and Coast Region Project Site: Tahuya Delineation City/County: Tahuya/Mason Sampling Date: 8-26-20 Applicant/Owner: Clyde Corbin State: WA Sampling Point: TP 1 Investigator(s): L.Westervelt&A.Randleman Section,Township,Range: S 12 T 23N.R 3W WM Landform(hillslope,terrace,etc.): terrace Local relief(concave,convex,none): concave Slope(%): 5°/u Subregion(LRR): MLRA 2 Lat: 47.4122681 Long: -123.0069969 Datum: NADH83 Soil Map Unit Name: Ab-Alderwood gravelly sandy loam 8 to 15 percent slopes NWI classification: None Are climatic/hydrologic conditions on the site typical for this time of year? Yes ® No ❑ (If no,explain in Remarks.) Are Vegetation ❑, Soil ❑, or Hydrology [I, significantly disturbed? Are"Normal Circumstances"present? Yes ® No ElAre 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 H dric Soil Present? Yes ❑ No ® Is the Sampled Area Yes [I No Y within a Wetland. Wetland Hydrology Present? Yes ❑ No Remarks: The property is located on the east side of NE Tahuya River Road in the Tahuya area of Mason County. The property extends east to the Tahuya River. There is a relatively level terrace on the west half of the property and a very steep slope at the middle which becomes the terrace on which the Tahuya River is situated on. Wetland A was identified partway up the steep slope and in the floodplain of the river. Wetland B was identified on the level terrace, near the existing road at the west end. Test Plot 1 was conducted at the top of the steep slope and near the south property line. VEGETATION—Use scientific names of plants Tree Stratum(Plot size:30'diameter) Absolute Dominant Indicator Dominance Test Worksheet: Cover Species? Status 1. Pseudotsuca menziesii 25 yes FACU Number of Dominant Species 3 (A) 2. Tsuca heterophylla 25 yes FACU That Are OBL,FACW,or FAC: 3. Thuia plicata 25 yes FAC Total Number of Dominant 9 (B) 4. Acer macrophvllum 25Les FACU Species Across All Strata: 50%=50,20%=20 100 =Total Cover Percent of Dominant Species 33 (A/B) Sapling/Shrub Stratum(Plot size:20'diameter) That Are OBL,FACW,or FAC: 1. Acercircinatum 20 yes FAC Prevalence Indexworksheet: 2. Mahonia nervosa 20 Y21 FACU Total%Cover of: Multiply by: 3. Gaultheda shallon 10 no FACU OBL species x1= 4. Vaccinium ovatum 10 no FACU FACW species x2= — 5 FAC species x3= — 50%=30,20%=12 60 =Total Cover FACU species x4= Herb Stratum(Plot size:10'diameter) UPL species x5= — 1. Polvstichum munitum 15 Xs FACU Column Totals: (A) (B) 2. Athyrium cvclosorum 10 yes FAC Prevalence Index=B/A= 3. Achlvs triphvlla 10 yes UPL Hydrophytic Vegetation Indicators: 4 ❑ 1—Rapid Test for Hydrophytic Vegetation 5 ❑ 2-Dominance Test is>50% 6. ❑ 3-Prevalence Index is<3.0' 7. El data -Morphological Adaptations'(Provide supporting 8 data in Remarks or on a separate sheet) 9 ❑ 5-Wetland Non-Vascular Plants' 10. ❑ Problematic Hydrophytic Vegetation'(Explain) 11. — ° 0 35 Total Cover 'Indicators of hydric soil and wetland hydrology must 50%=17.5,20%=7 be present,unless disturbed or problematic. Woody Vine Stratum(Plot size: ) Hydrophytic 2. - - Vegetation Yes ❑ No 50%_ ,20%_ =Total Cover — Present? %Bare Ground in Herb Stratum 65 Remarks: The hydrophytic vegetation criterion is not met because there is less than 50%dominance by FAC species. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 Project Site: Tahuva Delineation SOIL Sampling Point:TP 1 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) % Type' Locz Texture Remarks 0_2 Duff 2-16 10YR 5/3 100 ra sa to No redoximorphic features gr-gravelly sa-sandy to-loam 'Type:C=Concentration,D=Depletion,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. 2Location:PL=Pore Lining,M=Matrix,RC=Root Channel Hydric Soil Indicators:(Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils3: ❑ Histosol(Al) ❑ 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) ❑ Very Shallow Dark Surface(TF12) ❑ Hydrogen Sulfide(A4) ❑ Loamy Gleyed Matrix(F2) ❑ Other(Explain in Remarks) ❑ Depleted Below Dark Surface(Al 1) ❑ Depleted Matrix(F3) ❑ Thick Dark Surface(Al2) ❑ Redox Dark Surface(F6) ❑ Sandy Mucky Mineral(S1) ❑ Depleted Dark Surface(F7) 3Indicators of hydrophytic vegetation and ElSandy Gleyed Matrix(S4) ❑ Redox Depressions(F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer(if present): Type: Depth(inches): Hydric Soils Present? Yes ❑ No Remarks: The soil profile meets none of the hydric soil indicators and therefore the hydric soil criteria is not met. 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) ❑ Water-Stained Leaves(B9) ❑ High Water Table(A2) (except MLRA 1,2,4A,and 4B) (MLRA 1,2,4A,and 413) ❑ Saturation(A3) ❑ Salt Crust(B11) ❑ Drainage Patterns(B10) ❑ Water Marks(B1) ❑ Aquatic Invertebrates(B13) ❑ Dry-Season Water Table(C2) ❑ Sediment Deposits(B2) ❑ Hydrogen Sulfide Odor(Cl) ❑ Saturation Visible on Aerial Imagery(C9) ❑ Drift Deposits(B3) ❑ Oxidized Rhizospheres along Living Roots(C3) ❑ Geomorphic Position(D2) ❑ Algal Mat or Crust(84) ❑ Presence of Reduced Iron(C4) ❑ Shallow Aquitard(D3) ❑ Iron Deposits(135) ❑ Recent Iron Reduction in Tilled Soils(C6) ❑ FAC-Neutral Test(D5) ❑ Surface Soil Cracks(B6) ❑ Stunted or Stresses Plants(D1)(LRR A) ❑ Raised Ant Mounds(D6)(LRR A) ❑ Inundation Visible on Aerial Imagery(67) ❑ Other(Explain in Remarks) ❑ Frost-Heave Hummocks(D7) ❑ Sparsely Vegetated Concave Surface(B8) Field Observations: Surface Water Present? Yes ❑ No ® Depth(inches): Water Table Present? Yes ❑ No ® Depth(inches): Saturation Present?(includes capillary fringe) Yes ❑ No ® Depth(inches): Wetland Hydrology Present? Yes ❑ No Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous inspections),if available: Remarks: Hydrology was not present during the site visit and there was no evidence to indicate wetland hydrology. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 WETLAND DETERMINATION DATA FORM—Western Mountains,Valleys, and Coast Region Project Site: Tahuya Delineation City/County: Tahuya/Mason Sampling Date: 8-26-20 Applicant/Owner: Clyde Corbin State: WA Sampling Point: TP 2 Investigator(s): L.Westervelt&A.Randleman Section,Township,Range: S 12.T 23N,R 3W WM Landform(hillslope,terrace,etc.): terrace Local relief(concave,convex,none): concave Slope(%): 5% Subregion(LRR): MLRA 2 Lat: 47.4127343 Long: -123.0069477 Datum: NADH83 Soil Map Unit Name: Ab-Alderwood gravelly sandy loam.8 to 15 percent slopes NWI classification: None Are climatic/hydrologic conditions on the site typical for this time of year? Yes ® No ❑ (If no,explain in Remarks.) Are Vegetation ❑, Soil ❑, or Hydrology ❑, significantly disturbed? Are"Normal Circumstances"present? Yes ® 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 Hydric Soil Present? Yes ❑ No ® Is the Sampled Area Yes ❑ No within a Wetland? Wetiand Hydrology Present? Yes ❑ No ID Remarks: The property is located on the east side of NE Tahuya River Road in the Tahuya area of Mason County. The property extends east to the Tahuya River. There is a relatively level terrace on the west half of the property and a very steep slope at the middle which becomes the terrace on which the Tahuya River is situated on. Wetland A was identified partway up the steep slope and in the floodplain of the river. Wetland B was identified on the level terrace, near the existing road at the west end. Test Plot 2 was conducted at the top of the steep slope and near the north property line in an old road. VEGETATION—Use scientific names of plants Tree Stratum(Plot size:30'diameter) Absolute Dominant Indicator Dominance Test Worksheet: %Cover Species? Status 1. Acermacrophyllum 90 YMS FACU Number of Dominant Species 2. Pseudotsuga menziesii 10 no FACU That Are OBL,FACW,or FAC: 1 (A) 3. Total Number of Dominant q Species Across All Strata: (B) 50%=50,20%=20 100 =Total Cover Percent of Dominant Species Sapling/Shrub Stratum(Plot size:20'diameter) That Are OBL,FACW,or FAC: 50 (AB) 1. Prevalence Index worksheet: 2. Total%Cover of: Multiply by: 3. OBL species 10 x1= 10 4. FACW species x2= 5. FAC species 85 x3= 255 50%_ ,20%_ =Total Cover FACU species 100 x4= 400 Herb Stratum(Plot size:10'diameter) UPL species x5= 1. Tolmiea menziesii 70 Yes FAC Column Totals: 195(A) 665(B) 2. Athyrium cvclosorum 15 no FAC Prevalence Index=B/A=3.4 3. Carex obnupta 10 no OBL Hydrophytic Vegetation Indicators: 4. ❑ 1—Rapid Test for Hydrophytic Vegetation 5. ❑ 2-Dominance Test is>50% 6. ❑ 3-Prevalence Index is<3.0' 7. ❑ 4-Morphological Adaptations'(Provide supporting 8 data in Remarks or on a separate sheet) 9. ❑ 5-Wetland Non-Vascular Plants' 10. ❑ Problematic Hydrophytic Vegetation'(Explain) 11. — 50%=47.5,20%=19 95 =Total Cover 'Indicators of hydric soil and wetland hydrology must be present,unless disturbed or problematic. Woody Vine Stratum(Plot size: ) 1. _ 2 Hydrophytic Vegetation Yes ❑ No 50%_—,20°k=_ =Total Cover Present? %Bare Ground in Herb Stratum 5 Remarks: The hydrophytic vegetation criterion is not met because the prevelance index is greater than 3.0. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 Project Site: Tahuva Delineation SOIL Sampling Point:TP 2 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) % Type' LOc2 Texture Remarks 0=8 10YR 3/4 100 rg sa to No redoximorohic features or-gravelly sa-sandy to-loam 'Type:C=Concentration,D=Depletion,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. 'Location:PL=Pore Lining,M=Matrix,RC=Root Channel Hydric Soil Indicators:(Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils3: ❑ Histosol(Al) ❑ 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) ❑ Very Shallow Dark Surface(TF12) ❑ Hydrogen Sulfide(A4) ❑ Loamy Gleyed Matrix(F2) ❑ Other(Explain in Remarks) ❑ Depleted Below Dark Surface(A11) ❑ Depleted Matrix(F3) ❑ Thick Dark Surface(Al2) ❑ Redox Dark Surface(F6) ❑ Sandy Mucky Mineral(S1) ❑ Depleted Dark Surface(F7) 31ndicators of hydrophytic vegetation and wetland hydrology must be present, ❑ Sandy Gleyed Matrix(S4) ❑ Redox Depressions(F8) unless disturbed or problematic. Restrictive Layer(if present): Type: compacted rock Depth(inches): 8 Hydric Soils Present? Yes ❑ No Remarks: The soil profile meets none of the hydric soil indicators and therefore the hydric soil criteria is not met. HYDROLOGY Wetland Hydrology Indicators: Primary Indicators(minimum of one required;check all that apply) Secondary Indicators(2 or more required) ❑ Surface Water(A 1) ❑ Water-Stained Leaves(139) ❑ Water-Stained Leaves(B9) ❑ High Water Table(A2) (except MLRA 1,2,4A,and 4B) (MLRA 1,2,4A,and 4B) ❑ Saturation(A3) ❑ Salt Crust(1311) ❑ Drainage Patterns(1310) ❑ Water Marks(B1) ❑ Aquatic Invertebrates(613) ❑ Dry-Season Water Table(C2) ❑ Sediment Deposits(B2) ❑ Hydrogen Sulfide Odor(Cl) ❑ Saturation Visible on Aerial Imagery(C9) ❑ Drift Deposits(133) ❑ Oxidized Rhizospheres along Living Roots(C3) ❑ Geomorphic Position(D2) ❑ Algal Mat or Crust(134) ❑ Presence of Reduced Iron(C4) ❑ Shallow Aquitard(D3) ❑ Iron Deposits(135) ❑ Recent Iron Reduction in Tilled Soils(C6) ❑ FAC-Neutral Test(D5) ❑ Surface Soil Cracks(B6) ❑ Stunted or Stresses Plants(D1)(LRR A) ❑ Raised Ant Mounds(D6)(LRR A) ❑ Inundation Visible on Aerial Imagery(B7) ❑ Other(Explain in Remarks) ❑ Frost-Heave Hummocks(D7) ❑ Sparsely Vegetated Concave Surface(138) Field Observations: Surface Water Present? Yes ❑ No ® Depth(inches): Water Table Present? Yes ❑ No ® Depth(inches): Saturation Present? Yes ❑ No ® Depth(inches): Wetand Hydrology Present? Yes ❑ No (includes capillary fringe) Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous inspections),if available: Remarks: Hydrology was not present during the site visit and there was no evidence to indicate wetland hydrology. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 WETLAND DETERMINATION DATA FORM—Western Mountains,Valleys, and Coast Region Project Site: Tahuya Delineation City/County: Tahuya/Mason Sampling Date: 8-26-20 Applicant/Owner: Clyde Corbin State: WA Sampling Point: TP 3 Investigator(s): L.Westervelt&A.Randleman Section,Township,Range: S 12 T 23N.R 3W WM Landform(hillslope,terrace,etc.): terrace Local relief(concave,convex,none): concave Slope(%): 5/° Subregion(LRR): MLRA 2 Let: 47.4123245 Long: -123.0065948 Datum: NADH83 Soil Map Unit Name: Ek-Everett very gravelly sandy loam 15 to 30 percent slopes NWI classification: None Are climatic/hydrologic conditions on the site typical for this time of year? Yes ® No ❑ (If no,explain in Remarks.) Are Vegetation ❑, Soil ❑, or Hydrology ❑, significantly disturbed? Are"Normal Circumstances"present? Yes ® 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 El Yes ® No ❑ within a Wetland? Wetland Hydrology Present? Yes ® No ❑ Remarks: The property is located on the east side of NE Tahuya River Road in the Tahuya area of Mason County. The property extends east to the Tahuya River. There is a relatively level terrace on the west half of the property and a very steep slope at the middle which becomes the terrace on which the Tahuya River is situated on. Wetland A was identified partway up the steep slope and in the floodplain of the river. Wetland B was identified on the level terrace, near the existing road at the west end. Test Plot 3 was conducted on the slope where Wetland A begins. VEGETATION—Use scientific names of plants Tree Stratum(Plot size:3V diameter) Absolute Dominant Indicator Dominance Test Worksheet: %Cover Species? Status 1. Acermacrophyllum 70 yes FACU Number of Dominant Species 4 (A) 2. Alnus rubra 10 no FAC That Are OBL,FACW,or FAC: 3. Total Number of Dominant 4 (B) 4 Species Across All Strata: 50%=40,20%=16 80 =Total Cover Percent of Dominant Species SaotinglShrub Stratum(Plot size:20'diameter) That Are OBL,FACW,or FAC: 100 (A/B) 1. Acercircinatum 60 yes FAC Prevalence Index worksheets 2 Total%Cover of: Multiply by: 3 OBL species x1= 4 FACW species x2= 5 FAC species x3= 50%=30,20%=12 60 =Total Cover FACU species x4= Herb Stratum(Plot size:10'diameter) UPL species x5= 1. Tolmiea menziesii 25 YtS FAC Column Totals: (A) (B) 2. Athyrium cyclosorum 20 ,yes FAC Prevalence Index=B/A= 3. Petasites palmatus 15 yes FACW Hydrophytic Vegetation Indicators: 4. Dicentra tormosa 10 no FACU ❑ 1—Rapid Test for Hydrophytic Vegetation 5 ® 2-Dominance Test is>50% 6, ❑ 3-Prevalence Index is<3.01 7. ❑ 4-Morphological Adaptations'(Provide supporting 6 data in Remarks or on a separate sheet) 9 ❑ 5-Wetland Non-Vascular Plants' 10. ❑ Problematic Hydrophytic Vegetation'(Explain) 11. 50%=35,20%=14 70 Total Cover 'Indicators of hydric soil and wetland hydrology must be present,unless disturbed or problematic. Woody Vine Stratum(Plot size:_) 2 Hydrophytic Vegetation Yes ® No ❑ 50%= 20%_ =Total Cover Present? %Bare Ground in Herb Stratum 30 Remarks: The hydrophytic vegetation criterion is met because there is greater than 50 percent dominance by FAC and FACW species 'This tree was not rooted in the wetland boundary and was excluded from the dominance calculation. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 Project Site: Tahuva Delineation SOIL Sampling Point:TP 3 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(mast) % Type' Locz Texture Remarks 0-10 10YR 2/2 100 sa to No redoximorphic features 101016 10YR 4/2 97 10YR 5/8 3 C M gr sa to gr-gravelly sa-sandy to-loam 'Type:C=Concentration,D=Depletion,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. 2Location:PL=Pore Lining,M=Matrix,RC=Root Channel Hydric Soil Indicators:(Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils3: ❑ Histosol(Al) ❑ 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) ❑ Very Shallow Dark Surface(TF12) ❑ Hydrogen Sulfide(A4) ❑ Loamy Gleyed Matrix(F2) ❑ Other(Explain in Remarks) ❑ Depleted Below Dark Surface(A11) ® Depleted Matrix(F3) ❑ Thick Dark Surface(Al2) ❑ Redox Dark Surface(F6) ❑ Sandy Mucky Mineral(S1) ❑ Depleted Dark Surface(177) 3Indicators of hydrophytic vegetation and ❑ Sandy Gleyed Matrix(S4) El Redox hydrology must be present,Redox Depressions(F8) unless disturbed or problematic. Restrictive Layer(if present): Type: compacted rock Depth(inches): 8 Hydric Soils Present? Yes ® No ❑ Remarks: The soil profile meets hydric soil indicator F3,Depleted Matrix and therefore the hydric soil criteria is met. 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(139) ❑ Water-Stained Leaves(B9) ❑ High Water Table(A2) (except MLRA 1,2,4A,and 4B) (MLRA 1,2,4A,and 4B) ® Saturation(A3) ❑ Salt Crust(1311) ❑ Drainage Patterns(B10) ❑ Water Marks(131) ❑ Aquatic Invertebrates(1313) ❑ Dry-Season Water Table(C2) ❑ Sediment Deposits(82) ❑ Hydrogen Sulfide Odor(Cl) ❑ Saturation Visible on Aerial Imagery(C9) ❑ Drift Deposits(63) ❑ Oxidized Rhizospheres along Living Roots(C3) ❑ Geomorphic Position(D2) ❑ Algal Mat or Crust(134) ❑ Presence of Reduced Iron(C4) ❑ Shallow Aquitard(D3) ❑ Iron Deposits(65) ❑ Recent Iron Reduction in Tilled Soils(C6) ❑ FAC-Neutral Test(D5) ❑ Surface Soil Cracks(136) ❑ Stunted or Stresses Plants(D1)(LRR A) ❑ Raised Ant Mounds(D6)(LRR A) ❑ Inundation Visible on Aerial Imagery(B7) ❑ Other(Explain in Remarks) ❑ Frost-Heave Hummocks(D7) ❑ Sparsely Vegetated Concave Surface(138) Field Observations: Surface Water Present? Yes ❑ No ® Depth(inches): Water Table Present? Yes ❑ No ® Depth(inches): Saturation Present? (includes capillary fringe) Yes ® No ❑ Depth(inches): surface Wetland Hydrology Present? Yes ® No ❑ Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous inspections),if available: Remarks: Hydrology was present during the site visit observed as saturation to the soil surface. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 WETLAND DETERMINATION DATA FORM—Western Mountains,Valleys, and Coast Region Project Site: Tahuya Delineation City/County: Tahuya/Mason Sampling Date: 8-26-20 Applicant/Owner. Clyde Corbin State: WA Sampling Point: TP 1 Investigator(s): L.Westervelt&A.Rendleman Section,Township,Range: S 12,T 23N.R 3W WM Landform(hillslope,terrace,etc.): terrace Local relief(concave,convex,none): concave Slope(%): 5% Subregion(LRR): MLRA 2 Let: 47.4123869 Long: -123.0065688 Datum: NADH83 Soil Map Unit Name: Ek-Everett very gravelly sandy loam 15 to 30 percent slopes NWI classification: None Are climatic/hydrologic conditions on the site typical for this time of year? Yes ® No ❑ (If no,explain in Remarks.) Are Vegetation ❑, Soil ❑, or Hydrology ❑, significantly disturbed? Are"Normal Circumstances'present? Yes ® 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 Hydric Soil Present? Yes ❑ No ® Is the Sampled Area Yes ❑ No within a Wetland? Wetland Hydrology Present? Yes ❑ No Remarks: The property is located on the east side of NE Tahuya River Road in the Tahuya area of Mason County. The property extends east to the Tahuya River. There is a relatively level terrace on the west half of the property and a very steep slope at the middle which becomes the terrace on which the Tahuya River is situated on. Wetland A was identified partway up the steep slope and in the floodplain of the river. Wetland B was identified on the level terrace, near the existing road at the west end. Test Plot 4 was conducted on the sloe above Wetland A. VEGETATION—Use scientific names of plants Tree Stratum(Plot size:30'diameter) Absolute Dominant Indicator Dominance Test Worksheet: %Cover Species? Status 1. Acermacrophvllum 70 Yes FACU Number of Dominant Species 2. Tsuga heterophvlla 30 � FACU That Are OBL,FACW,or FAC: 1 (A) 3. Total Number of Dominant Species Across All Strata: 4 (B) 4. — 50%=50,20%=20 100 =Total Cover Percent of Dominant Species Sapling/Shrub Stratum(Plot size:20'diameter) That Are OBL,FACW,or FAC: 25 (A/B) 1. Acercircinatum 40 yes FAC Prevalence Index worksheet: 2 Total%Cover of: Multiply by: 3 OBL species x1= 4. FACW species x2= 5. FAC species x3= 50%=20,20%=8 40 =Total Cover FACU species x4= Herb Stratum(Plot size:10'diameter) UPL species x5= 1. Polvstichum munitum 10 yes. FACU Column Totals: (A) (B) 2 Prevalence Index=B/A= 3. Hydrophytic Vegetation Indicators: 4 ❑ 1—Rapid Test for Hydrophytic Vegetation 5 ❑ 2-Dominance Test is>50% 6. ❑ 3-Prevalence Index is<3.0' 7. ❑ 4-Morphological Adaptations'(Provide supporting 8 data in Remarks or on a separate sheet) 9. ❑ 5-Wetland Non-Vascular Plants' 10. ❑ Problematic Hydrophytic Vegetation'(Explain) 11. 50%=5,20%=2 10 Total Cover 'Indicators of hydric soil and wetland hydrology must be present,unless disturbed or problematic. Woody Vine Stratum(Plot size: ) 1. — 2 Hydrophytic Vegetation Yes ❑ No 50%_ ,20%_ =Total Cover Present? %Bare Ground in Herb Stratum 90 Remarks: The hydrophytic vegetation criterion is not met because there is less than 50%dominance by FAC species. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 Project Site: Tahuya Delineation SOIL Sampling Point:TP 4 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(mast) % Type' Loc2 Texture Remarks 0=5 Duff 5-16 2.5YR 4/4 100 ra sa to No redoximorohic features or-gravelly sa-sandy to-loam 'Type:C=Concentration,D=Depletion,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. 21-ocation:PL=Pore Lining,M=Matrix,RC=Root Channel Hydric Soil Indicators:(Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils3: ❑ Histosol(Al) ❑ 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) ❑ Very Shallow Dark Surface(TF12) ❑ Hydrogen Sulfide(A4) ❑ Loamy Gleyed Matrix(F2) ❑ Other(Explain in Remarks) ❑ Depleted Below Dark Surface(All 1) ❑ Depleted Matrix(F3) ❑' Thick Dark Surface(Al2) ❑ Redox Dark Surface(F6) ❑ Sandy Mucky Mineral(S1) ❑ Depleted Dark Surface(F7) 31ndicators of hydrophytic vegetation and wetland hydrology must be present, ❑ Sandy Gleyed Matrix(S4) ❑ Redox Depressions(F8) unless disturbed or problematic. Restrictive Layer(if present): Type: Depth(inches): Hydric Soils Present? Yes ❑ No Remarks: The soil profile meets none of the hydric soil indicators and therefore the hydric soil criteria is not met. 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(139) ❑ Water-Stained Leaves(69) ❑ High Water Table(A2) (except MLRA 1,2,4A,and 413) (MLRA 1,2,4A,and 4113) ❑ Saturation(A3) ❑ Salt Crust(1311) ❑ Drainage Patterns(1310) ❑ Water Marks(131) ❑ Aquatic Invertebrates(1313) ❑ Dry-Season Water Table(C2) ❑ Sediment Deposits(B2) ❑ 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 Aquitard(D3) ❑ Iron Deposits(B5) ❑ Recent Iron Reduction in Tilled Soils(C6) ❑ FAC-Neutral Test(D5) ❑ Surface Soil Cracks(B6) ❑ Stunted or Stresses 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(138) Field Observations: Surface Water Present? Yes ❑ No ® Depth(inches): Water Table Present? Yes ❑ No ® Depth(inches): Saturation Present?(includes capillary f ringe) Yes ❑ No ® Depth(inches): Wetland Hydrology Present? Yes ❑ No Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous inspections),if available: Remarks: Hydrology was not present during the site visit and there was no evidence to indicate wetland hydrology. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 WETLAND DETERMINATION DATA FORM—Western Mountains,Valleys, and Coast Region Project Site: Tahuva Delineation City/County: Tahuva/Mason Sampling Date: 8-26-20 Applicant/Owner: Clyde Corbin State: WA Sampling Point: TP 5 Investigator(s): L.Westervelt&A.Rendleman Section,Township,Range: S 12 T 23N R 3W WM Landform(hillslope,terrace,etc.): terrace Local relief(concave,convex,none): concave Slope(%): 5% Subregion(LRR): MLRA 2 Lat: 47.4124152 Long: -123.0078419 Datum: NADH83 Soil Map Unit Name: Ab-Alderwood gravelly sandy loam 8 to 15 percent slopes NWI classification: None Are climatic/hydrologic conditions on the site typical for this time of year? Yes ® No ❑ (If no,explain in Remarks.) Are Vegetation ❑, Soil ❑, or Hydrology ❑, significantly disturbed? Are"Normal Circumstances"present? Yes ® 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 H dric Soil Present? Yes ❑ No ® Is the Sampled Area Yes [I No y within a Wetland? Wetland Hydrology Present? Yes ❑ No Remarks: The property is located on the east side of NE Tahuya River Road in the Tahuya area of Mason County. The property extends east to the Tahuya River. There is a relatively level terrace on the west half of the property and a very steep slope at the middle which becomes the terrace on which the Tahuya River is situated on. Wetland A was identified partway up the steep slope and in the floodplain of the river. Wetland B was identified on the level terrace, near the existing road at the west end. Test Plot 5 was conducted in the level upland area where the residence will eventually be proposed. VEGETATION—Use scientific names of plants Tree Stratum(Plot size:30'diameter) Absolute Dominant Indicator Dominance Test Worksheet: %Cover Species? Status 1. Tsuga heferophylla 90 yes FACU Number of Dominant Species That Are OBL,FACW,or FAC: — (A) 2. — 3. Total Number of Dominant Species Across All Strata: 6 (B) 4. — 50%=45,20%=18 90 =Total Cover Percent of Dominant Species Sapling/Shrub Stratum(Plot size:20'diameter) That Are OBL,FACW,or FAC: 17 (A16) 1. Acer circinatum 25 yes FAC Prevalence Index worksheet: 2. Gaultheria shallon 10 yes FACU Total%Cover of: Multiply by: 3. Corylus comuta 10 yes FACU OBL species x1= — 4 FACW species x2= 5 FAC species x3= 50%=22.5,20%=9 45 =Total Cover FACU species x4= Herb Stratum(Plot size:10'diameter) UPL species x5= 1. Lotus comiculatus 30 yes FACU Column Totals: (A) (B) 2. Polys6chum munitum 15 yes FACU Prevalence Index=B/A=— 3. Lapsana communis 10 no FACU Hydrophytic Vegetation Indicators: 4. Dicentra formosa 5 no FACU ❑ 1—Rapid Test for Hydrophytic Vegetation 5 ❑ 2-Dominance Test is>50% 6. ❑ 3-Prevalence Index is<3.0' 7. ❑ 4-Morphological Adaptations'(Provide supporting 8 data in Remarks or on a separate sheet) 9 — — ❑ 5-Wetland Non-Vascular Plants' 10. ❑ Problematic Hydrophytic Vegetation'(Explain) 11. 50%=30,20%=12 60 Total Cover 'Indicators of hydric soil and wetland hydrology must be present,unless disturbed or problematic. Woody Vine Stratum(Plot size: 1. — 2 Hydrophytic ° Total Cover Vegetation Yes ❑ No 50%_ ,20%_ Present? %Bare Ground in Herb Stratum 40 Remarks: The hydrophytic vegetation criterion is not met because there is less than 50%dominance by FAC species. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 Project Site: Tahuva Delineation SOIL Sampling Point:TP 5 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) % Type' LOcz Texture Remarks 0_1 Duff 1-16 10YR 5/4 100 rO si to No redoximorohic features gr-gravelly si-silt to-loam 'Type:C=Concentration,D=Depletion,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. zLocation:PL=Pore Lining,M=Matrix,RC=Root Channel Hydric Soil Indicators:(Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils': ❑ Histosol(At) ❑ Sandy Redox(S5) ❑ 2 cm Muck(At0) ❑ Histic Epipedon(A2) ❑ Stripped Matrix(S6) ❑ Red Parent Material(TF2) ❑ Black Histic(A3) ❑ Loamy Mucky Mineral(Fi)(except MLRA 1) ❑ Very Shallow Dark Surface(TF12) ❑ Hydrogen Sulfide(A4) ❑ Loamy Gleyed Matrix(F2) ❑ Other(Explain in Remarks) ❑ Depleted Below Dark Surface(A11) ❑ Depleted Matrix(F3) ❑ Thick Dark Surface(Al2) ❑ Redox Dark Surface(F6) ❑ Sandy Mucky Mineral(S1) ❑ Depleted Dark Surface(F7) 3Indicators of hydrophytic vegetation and ElSandy Gleyed Matrix(S4) ElRedox Depressions(F8) wetland hydrology must e present, unless disturbed or roblematic. Restrictive Layer(if present): Type. Depth(inches): Hydric Soils Present? Yes ❑ No Remarks: The soil profile meets none of the hydric soil indicators and therefore the hydric soil criteria is not met. HYDROLOGY Wetland Hydrology Indicators: Primary Indicators(minimum of one required;check all that apply) Secondary Indicators(2 or more required) ❑ Surface Water(A 1) ❑ Water-Stained Leaves(139) ❑ Water-Stained Leaves(139) ❑ High Water Table(A2) (except MLRA 1,2,4A,and 413) (MLRA 1,2,4A,and 4B) ❑ Saturation(A3) ❑ Salt Crust(1311) ❑ Drainage Patterns(B10) ❑ Water Marks(131) ❑ Aquatic Invertebrates(1313) ❑ Dry-Season Water Table(C2) ❑ Sediment Deposits(132) ❑ Hydrogen Sulfide Odor(Cl) ❑ Saturation Visible on Aerial Imagery(C9) ❑ Drift Deposits(1313) ❑ Oxidized Rhizospheres along Living Roots(C3) ❑ Geomorphic Position(D2) ❑ Algal Mat or Crust(84) ❑ Presence of Reduced Iron(C4) ❑ Shallow Aquitard(D3) ❑ Iron Deposits(135) ❑ Recent Iron Reduction in Tilled Soils(C6) ❑ FAC-Neutral Test(135) ❑ Surface Soil Cracks(B6) ❑ Stunted or Stresses Plants(131)(LRR A) ❑ Raised Ant Mounds(D6)(LRR A) ❑ Inundation Visible on Aerial Imagery(B7) ❑ Other(Explain in Remarks) ❑ Frost-Heave Hummocks(137) ❑ Sparsely Vegetated Concave Surface(B8) Field Observations: Surface Water Present? Yes ❑ No ® Depth(inches): Water Table Present? Yes ❑ No ® Depth(inches): Saturation Present?(includes capillary fringe) Yes ElNo ® Depth(inches): Wetland Hydrology Present? Yes ElNo Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous inspections),if available: Remarks: Hydrology was not present during the site visit and there was no evidence to indicate wetland hydrology. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 WETLAND DETERMINATION DATA FORM—Western Mountains,Valleys, and Coast Region Project Site: Tahuya Delineation City/County: Tahuya/Mason Sampling Date: 8-26-20 Applicant/Owner: Clyde Corbin State: WA Sampling Point: TP 6 Investigator(s): L.Westervelt&A.Rendleman Section,Township,Range: S 12 T 23N.R 3W WM Landform(hillslope,terrace,etc.): terrace Local relief(concave,convex,none): concave Slope(%): 50/6 Subregion(LRR): MLRA 2 Lat: 47.4127626 Long: -123.0081177 Datum: NADH83 Soil Map Unit Name: Ab-Alderwood gravelly sandy loam.8 to 15 percent slopes NWI classification: None Are climatic/hydrologic conditions on the site typical for this time of year? Yes ® No ❑ (If no,explain in Remarks.) Are Vegetation ❑, Soil ❑, or Hydrology ❑, significantly disturbed? Are"Normal Circumstances"present? Yes ® 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 ❑ Hydric Soil Present? Yes ® No ❑ Is the Sampled Area Yes ® No ❑ within a Wetland? Wetland Hydrology Present? Yes ® No ❑ Remarks: The property is located on the east side of NE Tahuya River Road in the Tahuya area of Mason County. The property extends east to the Tahuya River. There is a relatively level terrace on the west half of the property and a very steep slope at the middle which becomes the terrace on which the Tahuya River is situated on. Wetland A was identified partway up the steep slope and in the floodplain of the river. Wetland B was identified on the level terrace, near the existing road at the west end. Test Plot 6 was conducted in Wetland B. VEGETATION—Use scientific names of plants Tree Stratum(Plot size:30'diameter) Absolute Dominant Indicator Dominance Test Worksheet: %Cover Species? Status 1. Alnus rubra 40 yes FAC Number of Dominant Species That Are OBL,FACW,or FAC: 3 (A) 2. — 3. Total Number of Dominant Species Across All Strata: 4 (B) 4. — 50%=20,20%=8 40 =Total Cover Percent of Dominant Species Sapling/Shrub Stratum(Plot size:20'diameter) That Are OBL,FACW,or FAC: 75 (A/B) 1. Acer circinatum 30 Les FAC Prevalence Index worksheet: 2. Total%Cover of: Multiply by: 3. OBI-species x1= 4. FACW species x2= 5. FAC species x3= 50%=30,20%=12 60 =Total Cover FACU species x4= Herb Stratum(Plot size:10'diameter) UP species x5= 1. Carex obnupta 80 y9_S OBL Column Totals: (A) (B) 2. Rubus ursinus 30 ves FACU Prevalence Index=B/A=— 3. Athyrium cyclosorum 15 no FAC Hydrophytic Vegetation Indicators: 4 ❑ 1—Rapid Test for Hydrophytic Vegetation 5. ® 2-Dominance Test is>50% 6. ❑ 3-Prevalence Index is<3.01 7. ❑ 4-Morphological Adaptations'(Provide supporting 8 data in Remarks or on a separate sheet) g. ❑ 5-Wetland Non-Vascular Plants' 10. ❑ Problematic Hydrophytic Vegetation'(Explain) 11. — 50%=62.5,20%=25 125 =Total Cover 'Indicators of hydric soil and wetland hydrology must be present,unless disturbed or problematic. Woody Vine Stratum(Plot size: ) 1. — 2 Hydrophytic Vegetation Yes ® No ❑ 50%_ ,20%_ =Total Cover Present? %Bare Ground in Herb Stratum 00 Remarks: The hydrophytic vegetation criterion is met because then:is greater than 50 percent dominance by FAC and FACW species. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 Project Site: Tahuva Delineation SOIL Sampling Point:TP 6 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) % Type' Loci Texture Remarks 0-10 10YR 2/1 100 si to No redoximorphic features 101016 10YR 4/1 90 10YR 3/6 10 C M cl to si-silt cl-clay to-loam 'Type:C=Concentration,D=Depletion,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. 2Location:PL=Pore Lining,M=Matrix,RC=Root Channel Hydric Soil Indicators:(Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils': ❑ Histosol(Al) ❑ 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) ❑ Very Shallow Dark Surface(TF12) ❑ Hydrogen Sulfide(A4) ❑ Loamy Gleyed Matrix(F2) ❑ Other(Explain in Remarks) ❑ Depleted Below Dark Surface(A11) ® Depleted Matrix(173) ❑ Thick Dark Surface(Al2) ❑ Redox Dark Surface(F6) ❑ Sandy Mucky Mineral(S1) ❑ Depleted Dark Surface(F7) 3Indicators of hydrophytic vegetation and wetland hydrology must be present, ❑ Sandy Gleyed Matrix(S4) ❑ Redox Depressions(F8) unless disturbed or problematic. Restrictive Layer(if present): Type: compacted rock Depth(inches): 8 Hydric Soils Present? Yes ® No ❑ Remarks: The soil profile meets hydric soil indicator F3,Depleted Matrix and therefore the hydric soil criteria is met. HYDROLOGY Wetland Hydrology Indicators: Primary Indicators(minimum of one required;check all that apply) Secondary Indicators(2 or more required) ❑ Surface Water(A 1) ❑ Water-Stained Leaves(B9) ❑ Water-Stained Leaves(B9) ® High Water Table(A2) (except MLRA 1,2,4A,and 4B) (MLRA 1,2,4A,and 4B) ❑ Saturation(A3) ❑ Salt Crust(B11) ❑ Drainage Patterns(910) ❑ Water Marks(B1) ❑ Aquatic Invertebrates(B13) ❑ Dry-Season Water Table(C2) ❑ Sediment Deposits(B2) ❑ Hydrogen Sulfide Odor(Cl) ❑ Saturation Visible on Aerial Imagery(C9) ❑ Drift Deposits(B3) ❑ Oxidized Rhizospheres along Living Roots(C3) ❑ Geomorphic Position(D2) ❑ Algal Mat or Crust(B4) ❑ Presence of Reduced Iron(C4) ❑ Shallow Aquitard(D3) ❑ Iron Deposits(B5) ❑ Recent Iron Reduction in Tilled Soils(C6) ❑ FAC-Neutral Test(D5) ❑ Surface Soil Cracks(B6) ❑ Stunted or Stresses Plants(D1)(LRR A) ❑ Raised Ant Mounds(D6)(LRR A) ❑ Inundation Visible on Aerial Imagery(B7) ❑ Other(Explain in Remarks) ❑ Frost-Heave Hummocks(137) ❑ Sparsely Vegetated Concave Surface(B8) Field Observations: Surface Water Present? Yes ❑ No ® Depth(inches): Water Table Present? Yes ® No ❑ Depth(inches): 10 Saturation Present? Yes ❑ No ® Depth(inches): Wetland Hydrology Present? Yes 0 No ❑ (includes capillary fringe) Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous inspections),if available: Remarks: Hydrology was present during the site visit observed as a water table at 10 inches below the soil surface. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 WETLAND DETERMINATION DATA FORM—Western Mountains,Valleys, and Coast Region Project Site: Tahuya Delineation City/County: Tahuya/Mason Sampling Date: 8-26-20 Applicant/Owner. Clyde Corbin State: WA Sampling Point: TP 7 Investigator(s): L.Westervelt&A.Randleman Section,Township,Range: S 12 T 23N.R 3W WM Landform(hillslope,terrace,etc.): terrace Local relief(concave,convex,none): concave Slope(%): 5% Subregion(LRR): MLRA 2 Lat: 47.412717 Long: -123.0082163 Datum: NADH83 Soil Map Unit Name: Ab-Alderwood gravelly sandy loam 8 to 15 percent slopes NWI classification: None Are climatic/hydrologic conditions on the site typical for this time of year? Yes ® No ❑ (If no,explain in Remarks.) Are Vegetation ❑, Soil ❑, or Hydrology ❑, significantly disturbed? Are"Normal Circumstances"present? Yes ® 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 H dric Soil Present? Yes ❑ No ® Is the Sampled Area Yes ❑ No Y within a Wetland? Wetland Hydrology Present? Yes ❑ No Remarks: The property is located on the east side of NE Tahuya River Road in the Tahuya area of Mason County. The property extends east to the Tahuya River. There is a relatively level terrace on the west half of the property and a very steep slope at the middle which becomes the terrace on which the Tahuya River is situated on. Wetland A was identified partway up the steep slope and in the floodplain of the river. Wetland B was identified on the level terrace, near the existing road at the west end. Test Plot 7 was conducted in the upland outside of Wetland B. VEGETATION—Use scientific names of plants Tree Stratum(Plot size:30'diameter) Absolute Dominant Indicator Dominance Test Worksheet: %Cover Species? Status 1. Number of Dominant Species 0 (A) 2 That Are OBL,FACW,or FAC: 3, Total Number of Dominant 1 (B) 4 Species Across All Strata: 50%_ 20%_ =Total Cover Percent of Dominant Species _ SablinglShrub Stratum(Plot size:20'diameter) That Are OBL,FACW,or FAC: — (�B) 1 Prevalence Index worksheet: 2 Total%Cover of: Multiply by: 3. OBL species x1= 4 FACW species x2= 5 FAC species x3= 50%= 20%_ =Total Cover FACU species x4= Herb Stratum(Plot size:10'diameter) UPL species x5= 1. Polyst/chum munitum 65 ves FACU Column Totals: (A) (B) 2. Rubus ursinus 10 no FACU Prevalence Index=B/A= 3 Hydrophytic Vegetation Indicators: 4 ❑ 1—Rapid Test for Hydrophytic Vegetation 5 ❑ 2-Dominance Test is>50% 6. ❑ 3-Prevalence Index is<3.01 7, ❑ 4-Morphological Adaptations'(Provide supporting 8 data in Remarks or on a separate sheet) 9 ❑ 5-Wetland Non-Vascular Plants' 10. — — ❑ Problematic Hydrophytic Vegetation'(Explain) 11. — =15 75 =Total Cover 'Indicators of s soil and wetland hydrology must 50%=37.5,20% be present,unless disturbed or problematic. Woody Vine Stratum(Plot size: Hydrophytic 2. - - Vegetation Yes ❑ No 50%= 20%_ =Total Cover Present? %Bare Ground in Herb Stratum 25 Remarks: The hydrophytic vegetation criterion is not met because there is less than 50%dominance by FAC species. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 Project Site: Tahuva Delineation SOIL Sampling Point:TP 7 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(mast) % Type' LOCI Texture Remarks 0_1 Duff 11=8 10YR 3/2 100 clay loam No redoximorphic features 8-16 7.5YR 4/4 100 rg cl to No redoximorphic features or-gravelly cl-day to-loam 'Type:C=Concentration,D=Depletion,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. zLocation:PL=Pore Lining,M=Matrix,RC=Root Channel Hydric Soil Indicators:(Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils3: ❑ Histosol(Al) ❑ Sandy Redox(S5) ❑ 2 cm Muck(At0) ❑ Histic Epipedon(A2) ❑ Stripped Matrix(S6) ❑ Red Parent Material(TF2) ❑ Black Histic(A3) ❑ Loamy Mucky Mineral(Fi)(except MLRA 1) ❑ Very Shallow Dark Surface(TF12) ❑ Hydrogen Sulfide(A4) ❑ Loamy Gleyed Matrix(F2) ❑ Other(Explain in Remarks) ❑ Depleted Below Dark Surface(At 1) ❑ Depleted Matrix(F3) ❑ Thick Dark Surface(Al2) ❑ Redox Dark Surface(176) ❑ Sandy Mucky Mineral(S1) ❑ Depleted Dark Surface(F7) 'Indicators of hydrophytic vegetation and wetland hydrology must be present, ❑ Sandy Gleyed Matrix(S4) ❑ Redox Depressions(F8) unless disturbed or problematic. Restrictive Layer(if present): Type. Depth(inches): Hydric Soils Present? Yes ❑ No Remarks: The soil profile meets none of the hydric soil indicators and therefore the hydric soil criteria is not met. HYDROLOGY Wetland Hydrology Indicators: Primary Indicators(minimum of one required;check all that apply) Secondary Indicators(2 or more required) ❑ Surface Water(At) ❑ Water-Stained Leaves(139) ❑ Water-Stained Leaves(69) ❑ High Water Table(A2) (except MLRA 1,2,4A,and 4B) (MLRA 1,2,4A,and 4B) ❑ Saturation(A3) ❑ Salt Crust(B11) ❑ Drainage Patterns(1310) ❑ Water Marks(131) ❑ Aquatic Invertebrates(1313) ❑ Dry-Season Water Table(C2) ❑ Sediment Deposits(132) ❑ Hydrogen Sulfide Odor(Cl) ❑ Saturation Visible on Aerial Imagery(C9) ❑ Drift Deposits(133) ❑ Oxidized Rhizospheres along Living Roots(C3) ❑ Geomorphic Position(D2) ❑ Algal Mat or Crust(B4) ❑ Presence of Reduced Iron(C4) ❑ Shallow Aquitard(D3) ❑ Iron Deposits(135) ❑ Recent Iron Reduction in Tilled Soils(C6) ❑ FAC-Neutral Test(D5) ❑ Surface Soil Cracks(B6) ❑ Stunted or Stresses 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(B8) 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 capillary fringe) Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous inspections),if available: Remarks: Hydrology was not present during the site visit and there was no evidence to indicate wetland hydrology. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 A z w a a Wetland name or number: A RATING SUMMARY — Western Washington Name of wetland (or ID#): Wetland A Date of site visit: 8/26/20 Rated by: L. Westervelt Trained by Ecology? X Yes No Date of training: 3/2017 HGM Class used for rating: Riverine Wetland has multiple HGM classes? X Y N NOTE: Form is not complete without the figures requested (figures can be combined). Source of base aerial photo/map: GooRle Earth OVERALL WETLAND CATEGORY III (based on functions X or special characteristics__) 1. Category of wetland based on FUNCTIONS Category I —Total score= 23—27 Score for each Category II—Total score = 20—22 function based X Category III—Total score = 16—19 on three ratings Category IV—Total score =9— 15 (order of ratings is not FUNCTION Improving Hydrologic Habitat important) Water Quality 1 1 9= H,H,H Circle the appropriate ratings 8= H,H,M Site Potential H M L H M L H M L 7= H,H,L Landscape Potential H M L H M L H M L 7= H,M,M Value H M L H M L H UM L TOTAL 6= H,M,L 6= M,M,M Score Based on 5 5 17 5 = H,L,L Ratings 5= M,M,L 4= M,L,L 3 = L,L,L 2. Category based on SPECIAL CHARACTERISTICS of wetland CHARACTERISTIC CATEGORY Estuarine I II Wetland of High Conservation Value I Bog I Mature Forest I Old Growth Forest I Coastal Lagoon I II Interdunal I II III IV None of the above None Wetland Rating System for Western WA:2014 Update 1 Rating Form-Effective January 1,2015 Wetland name or number: A Maps and figures required to answer questions correctly for Western Washington Depressional 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 anotherfigure) D 2.2, D 5.2 Map of the contributing basin D 4.31 D 5.3 1 km Polygon:Area that extends 1 km from entire wetland edge-including H 2.1, H 2.2, H 2.3 polygons for accessible habitat and undisturbed habitat 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 1,6 Hydroperiods H 1.2 1,6 Ponded depressions R 1.1 1,6 Boundary of area within 150 ft of the wetland(can be added to anotherfigure) R 2.4 6 Plant cover of trees,shrubs,and herbaceous plants R 1.2, R 4.2 6 Width of unit vs.width of stream(can be added to anotherfigure) R 4.1 6 Map of the contributing basin R 2.2, R 2.3,R 5.2 8 1 km Polygon:Area that extends 1 km from entire wetland edge-including H 2.1,H 2.2,H 2.3 7 polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d)listed waters in basin(from Ecology website) R 3.1 9 Screen capture of list of TMDLs for WRIA in which unit is found(from web) R 3.2, R 3.3 9 Lake Fringe Wetlands Map of: To answerquestions: Figure# Cowardin plant classes L 1.1, L 4.1, 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 anotherfigure) L 2.2 1 km Polygon:Area that extends 1 km from entire wetland edge-including H 2.1, H 2.2,H 2.3 polygons for accessible habitat and undisturbed habitat 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 Hydroperiods H 1.2 Plant cover of dense trees,shrubs,and herbaceous plants S 1.3 Plant cover of dense,rigid trees,shrubs,and herbaceous plants S 4.1 (can be added to figure above) Boundary of 150 ft buffer(can be added to another figure) S 2.1,S 5.1 1 km Polygon:Area that extends 1 km from entire wetland edge-including H 2.1, H 2.2, H 2.3 polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d)listed waters in basin(from Ecology website) S 3.1,S 3.2 Screen capture of list of TMDLs for WRIA in which unit is found(from web) S 3.3 Wetland Rating System for Western WA:2014 Update 2 Rating Form-Effective January 1,2015 Wetland name or number A HGM Classification of Wetlands in Western Washington For questions 1-7,the criteria described must apply to the entire unit being rated. If the 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? 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. NO-go to 3 YES-The wetland class is Flats Ifyour 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 anytime 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). 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? The wetland is on a slope (slope can be verygradual), 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 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. Wetland Rating System for Western WA:2014 Update 3 Rating Form-Effective January 1,2015 Wetland name or number A NO-go to 6 YES-The wetland class is Riverine NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface,at sometime during the year? This means that any outlet, if present, is higher than the interior of the wetland. NO-go to 7 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. NO -go to 8 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 HGM class to being rated use in rating Slope +Riverine Riverine Slope + Depressional Depressional Slope + Lake Fringe Lake Fringe Depressional + Riverine along stream Depressional within boundary of depression Depressional+ Lake Fringe Depressional Riverine+ Lake Fringe Riverine Salt Water Tidal Fringe and any other Treat as class of freshwater wetland ESTUARINE If you are still unable to determine which of the above criteria apply to your wetland, or ifyou 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 4 Rating Form-Effective January 1,2015 Wetland name or number A RIVERINE AND FRESHWATER TIDAL FRINGE WETLANDS Water Quality Functions - Indicators that the site functions to improve water quality R 1.0. Does the site have the potential to improve water quality? R 1.1.Area of surface depressions within the Riverine wetland that can trap sediments during a flooding event: 2 Depressions cover>3/ area of wetland points=8 4 Depressions cover>M. area of wetland points=4 Depressions present but cover<%area of wetland points=2 R 1.2.Structure of plants in the wetland(areas with>90%cover at person height,not Cowardin classes) 6 Trees or shrubs>2/3 area of the wetland points=8 Trees or shrubs>1/3 area of the wetland points=6 Herbaceous plants(>6 in high)>2/3 area of the wetland points=6 Herbaceous plants(>6 in high)>1/3 area of the wetland points=3 Trees,shrubs,and ungrazed herbaceous<1/3 area of the wetland points=0 Total for R 1 Add the points in the boxes above 8 Rating of Site Potential If score is:_12-16=H X 6-11=M _0-5=L Record the rating on the first page R 2.0. Does the landscape have the potential to support the water quality function of the site? R 2.1. Is the wetland within an incorporated city or within its UGA? Yes=2 No=0 0 R 2.2. Does the contributing basin to the wetland include a UGA or incorporated area? Yes=1 No=0 0 R 2.3. Does at least 10%of the contributing basin contain tilled fields,pastures,or forests that have been clearcut 0 within the last 5 years? Yes=1 No=0 R 2.4.Is>10%of the area within 150 ft of the wetland in land uses that generate pollutants? Yes=1 No=0 0 R 2.5.Are there other sources of pollutants coming into the wetland that are not listed in questions R 2.1-11 2.4 0 Other sources Yes=1 No=0 Total for R 2 Add the points in the boxes above 0 Rating of Landscape Potential If score is:-3-6=H _1 or 2=M X 0=L Record the rating on the first page R 3.0. Is the water quality improvement provided by the site valuable to society? R 3.1. Is the wetland along a stream or river that is on the 303(d)list or on a tributary that drains to one within 1 mi? 1 Yes=1 No=O R 3.2. Is the wetland along a stream or river that has TMDL limits for nutrients,toxics,or pathogens? Yes=1 No=O 0 R 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality? (answer 0 YES if there is a TMDL for the drainage in which the unit is found) Yes=2 No=0 Total for R 3 Add the points in the boxes above 1 Rating of Value If score is:-2-4=H X 1=M _O=L Record the rating on the first page Wetland Rating System for Western WA:2014 Update 5 Rating Form-Effective January 1,2015 Wetland name or number A RIVERINE AND FRESHWATER TIDAL FRINGE WETLANDS Hydrologic Functions - Indicators that site functions to reduce flooding and stream erosion R 4.0. Does the site have the potential to reduce flooding and erosion? R 4.1.Characteristics of the overbank storage the wetland provides: 2 Estimate the average width of the wetland perpendicular to the direction of the flow and the width of the stream or river channel(distance between banks). Calculate the ratio: (average width of wetland)/(average width of stream between banks). If the ratio is more than 20 points=9 If the ratio is 10-20 points=6 If the ratio is 5-<10 points=4 If the ratio is 1-<5 points=2 If the ratio is<1 points=1 R 4.2.Characteristics of plants that slow down water velocities during floods: Treat large woody debris as forest or 7 shrub. Choose the points appropriate for the best description(polygons need to have>90%cover at person height.These are NOT Cowardin classes). Forest or shrub for>1/3 area OR emergent plants>2/3area points=7 Forest or shrub for>1/10 area OR emergent plants>1/3area points=4 Plants do not meet above criteria points=0 Total for R 4 Add the points in the boxes above 9 Rating of Site Potential If score is:_12-16=H X 6-11=M _0-5=L Record the rating on the first page R 5.0. Does the landscape have the potential to support the hydrologic functions of the site? R 5.1. Is the stream or river adjacent to the wetland downcut? Yes=0 No=1 0 R 5.2. Does the up-gradient watershed include a UGA or incorporated area? Yes=1 No=0 0 R 5.3.Is the up-gradient stream or river controlled by dams? Yes=0 No=1 0 Total for R 5 Add the points in the boxes above 0 Rating of Landscape Potential If score is:_3=H _1 or 2=M X 0=L Record the rating on the first page R 6.0.Are the hydrologic functions provided by the site valuable to society? R 6.1. Distance to the nearest areas downstream that have flooding problems? 1 Choose the description that best fits the site. The sub-basin immediately down-gradient of the wetland has flooding problems that result in damage to human or natural resources(e.g.,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 R 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? 0 Yes=2 No=O Total for R 6 Add the points in the boxes above 1 Rating of Value If score is:-2-4=H X 1=M _0=L Record the rating on the first page Wetland Rating System for Western WA:2014 Update 6 Rating Form-Effective January 1,2015 Wetland name or number A 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 i Cowardin plant classes in the wetland. Up to 10 patches maybe combined for each class to meet the threshold of Xac 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 X Forested(areas where trees have>30%cover) 1 structure:points=0 If the unit has a Forested class,check if.• X 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 1 Check the types of water regimes(hydroperiods)present within the wetland. The water regime has to cover more than 10%of the wetland or Y.ac to count(see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present:points=3 X Seasonally flooded or inundated 3 types present:points=2 Occasionally flooded or inundated 2 types present:points=1 X Saturated only 1 type present:points=0 X 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 H 1.3. Richness of plant species 1 Count the number of plant species in the wetland that cover at least 10 ftZ. 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 canarygross,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 3 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 (::O ) (*) (0) None=0 points Low=1 point Moderate=2 points All three diagrams in this row are HIGH=3points Wetland Rating System for Western WA:2014 Update 13 Rating Form-Effective January 1,2015 Wetland name or number A H 1.5.Special habitat features: 4 Check the habitat features that are present in the wetland. The number of checks is the number of points. X Large,downed,woody debris within the wetland(>4 in diameter and 6 ft long). Standing snags(dbh>4 in)within the wetland X 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) X 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) X At least X 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) _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 10 Rating of Site Potential If score is:_35-18=H X 7-14=M _0-6=L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat functions of the site? H 2.1.Accessible habitat(include only habitat that directly abuts wetland unit). 3 Calculate: %undisturbed habitat 49 +[(%moderate and low intensity land uses)/2J 8_3= 57.3%If total accessible habitat is: >V3(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. 3 Calculate: %undisturbed habitat 76.6 +[(%moderate and low intensity land uses)/21 11.1= 87.7% 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 0 >50%of 1 km Polygon is high intensity land use points=(-2) <-50%of 1 km Polygon is high intensity points=0 Total for H 2 Add the ooints in the boxes above 6 Rating of Landscape Potential If score is: X 4-6=H _1-3=M _<1=L Record the rating on the first page s the habitat provided y 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 — 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)within 100 m oints=1 Site does not meet any of the criteria above points=0 Rating of Value If score is:-2=H X 1=M _0=L Record the rating on the first page Wetland Rating System for Western WA:2014 Update 14 Rating Form-Effective January 1,2015 Wetland name or number A 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.httpl/wdfw.wa.gov/publications/00165/wdfw00165 pdf or access the list from here: http•//wdfw wa gov/conservation[phs/listl) 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. — 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). —X 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). —X 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. — 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 15 Rating Form-Effective January 1,2015 Wetland name or number A CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS 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 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 a arine 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 Cat.I 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) Cat. —At least%of the landward edge of the wetland has a 100 ft buffer of shrub,forest,orun-grazed or un- mowed grassland. —The wetland has at least two of the following features:tidal channels,depressions with open water,or Cat.II contiguous freshwater wetlands. Yes=Category 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 Wetla i h Conservation Value? Yes-Go to SC 2.2 Cat.I SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? Yes=Category l No=Not a WHC SC 2.3.Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://wwwl.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.pdf Yes-Contact WNHP/WDNR and go to SC 2.4 No =Not a 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 a 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 cqjup or more of the first 32 in of the soil profile? Yes-Go to SC 3.3 No-Go to SC 3. SC 3.2. Does an area within the wetland unit have organic soils,either peats or mucks,that are less than in eep over bedrock,or an impermeable hardpan such as clay or volcanic ash,or that are floating on or pond? Yes-Go to SC 3.3 No=Is not a bo SC 3.3. Does an area with peats or mucks have more than 70%cover of mosses at ground level,AND at ea a 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. Cat. SC 3.4. Is an area with peats or mucks forested(>30%cover)with Sitka spruce,subalpine fir,western red cedar, western hemlock,lodgepole 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? Yes=Is a Category I bog No=Is not a bog Wetland Rating System for Western WA:2014 Update 16 Rating Form-Effective January 1,2015 Wetland name or number A 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= Category I<No=Not a for ted wetland for this section Cat.I 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 tn hp mpasured near the bottom) Cat. Yes-Go to SC 5 No=Not a tland 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). Cat.II —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 1/Io ac(4350 ftZ) Yes=Category I No=Category 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 Cat — Ocean Shores-Copalis:Lands west of SR 115 and SR 109 Yes-Go to SC 6.1<No=not an in dunal 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 Cat.11 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 Cat.III 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=Category III No=Category IV Cat.IV Category of wetland based on Special Characteristics If you answered No for all types,enter"Not Applicable"on Summary Form Wetland Rating System for Western WA:2014 Update 17 Rating Form-Effective January 1,2015 Wetland name or number This page left blank intentionally Wetland Rating System for Western WA:2014 Update 18 Rating Form-Effective January 1,2015 Wetland name or number: B RATING SUMMARY - Western Washington Name of wetland (or ID#): Wetland B Date of site visit: 8/26/20 Rated by: L. Westervelt Trained by Ecology? X Yes No Date of training: March 2017 HGM Class used for rating: Depressional Wetland has multiple HGM classes?_—Y X N NOTE: Form is not complete without the figures requested (figures can be combined). Source of base aerial photo/map: GooRle Earth OVERALL WETLAND CATEGORY IV (based on functions X or special characteristics__) 1. Category of wetland based on FUNCTIONS Category I —Total score = 23—27 Score for each Category II—Total score = 20—22 function based Category III—Total score = 16—19 on three ratings X Category IV—Total score =9— 15 (order of ratings is not FUNCTION Improving Hydrologic Habitat important) Water Quality 9= H,H,H Circle the Iappropriate ratings 8= H,H,M Site Potential H M L H M UL H M L 7 = H,H,L Landscape Potential H M L H M L H M L 7= H,M,M Value H M L H M L H M L TOTAL 6= H,M,L Score Based on 6= M,M,M Ratings 6 3 6 15 5 = H,L,L 5= M,M,L 4= M,L,L 3= L,L,L 2. Category based on SPECIAL CHARACTERISTICS of wetland CHARACTERISTIC CATEGORY Estuarine I II Wetland of High Conservation Value I Bog I Mature Forest I Old Growth Forest I Coastal Lagoon I II Interdunal I II III IV None of the above X Wetland Rating System for Western WA:2014 Update 1 Rating Form-Effective January 1,2015 Wetland name or number: B Maps and figures required to answer questions correctly for Western Washington Depressional Wetlands Map of: To answer questions: Figure# Cowardin plant classes D 1.3, H 1.1,H 1.4 2,6 Hydroperiods D 1.4, H 1.2 2,6 Location of outlet(can be added to map of hydroperiods) D 1.1, D 4.1 2,6 Boundary of area within'150 ft of the wetland(can be added to anotherfigure) D 2.2, D 5.2 6 Map of the contributing basin D 4.3, D 5.3 8 1 km Polygon:Area that extends 1 km from entire wetland edge-including H 2.1, H 2.2,H 2.3 7 polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d)listed waters in basin(from Ecology website) D 3.1, D 3.2 9 Screen capture of list of TMDLs for WRIA in which unit is found(from web) D 3.3 9 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 anotherfigure) 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 anotherfigure) 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 H 2.1, H 2.2, H 2.3 polygons for accessible habitat and undisturbed habitat 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, L 4.1, 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 anotherfigure) L 2.2 1 km Polygon:Area that extends 1 km from entire wetland edge-including H 2.1, H 2.2,H 2.3 polygons for accessible habitat and undisturbed habitat 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 Hydroperiods H 1.2 Plant cover of dense trees,shrubs,and herbaceous plants S 1.3 Plant cover of dense,rigid trees,shrubs,and herbaceous plants S 4.1 (can be added to figure above) Boundary of 150 ft buffer(can be added to another figure) S 2.1,S 5.1 1 km Polygon:Area that extends 1 km from entire wetland edge-including H 2.1, H 2.2, H 2.3 polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d)listed waters in basin(from Ecology website) S 3.1,S 3.2 Screen capture of list of TMDLs for WRIA in which unit is found(from web) S 3.3 Wetland Rating System for Western WA:2014 Update 2 Rating Form-Effective January 1,2015 Wetland name or number B HGM Classification of Wetlands in Western Washington For questions 1-7,the criteria described must apply to the entire unit being rated. If the 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? 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 Ifyour 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 notscored. 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. NO -go to 3 YES- The wetland class is Flats Ifyour 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 anytime 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). 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? _The wetland is on a slope (slope can be verygradual), 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 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. Wetland Rating System for Western WA:2014 Update 3 Rating Form-Effective January 1,2015 Wetland name or number B NO -go to 6 YES-The wetland class is Riverine NOTE:The Riverine unit can contain depressions that are filled with water when the river is not flooding 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface,at sometime during the year? This means that any outlet, if present, is higher than the interior of the wetland. NO-go to 7 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. NO-go to 8 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 HGM class to being rated use in rating Slope +Riverine Riverine Slope + Depressional Depressional Slope + Lake Fringe Lake Fringe Depressional + Riverine along stream Depressional within boundary of depression Depressional+ Lake Fringe Depressional Riverine+ Lake Fringe Riverine Salt Water Tidal Fringe and any other Treat as class of freshwater wetland ESTUARINE Ifyou are still unable to determine which of the above criteria apply to your wetland, or ifyou 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 4 Rating Form-Effective January 1,2015 Wetland name or number B DEPRESSIONAL AND FLATS WETLANDS Water Quality Functions - Indicators that the site functions to improve water quality D 1.0. Does the site have the potential to improve water quality? D 1.1.Characteristics of surface water outflows from the wetland: 2 Wetland is a depression or flat depression(QUESTION 7 on key)with no surface water leaving it(no outlet). points=3 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet. points=2 Wetland has an unconstricted,or slightly constricted,surface outlet that is permanently flowing points=1 Wetland is a flat depression(QUESTION 7 on key),whose outlet is a permanently flowing ditch. points=1 D 1.2.The soil 2 in below the surface(or duff laver)is true clay or true organic(use NRCS definitions).Yes=4 No=0 0 D 1.3. Characteristics and distribution of persistent plants(Emergent,Scrub-shrub,and/or Forested Cowardin classes): 3 Wetland has persistent,ungrazed,plants>95%of area points=5 Wetland has persistent,ungrazed,plants>% of area points=3 Wetland has persistent,ungrazed plants>1/,o of area Wetland has persistent,ungrazed <1 points=1 p g razed plants /roof area points=0 D 1.4.Characteristics of seasonal pondingor inundation: 2 This is the area that is ponded for at least 2 months.See description in manual. Area seasonally ponded is>%total area of wetland points=4 Area seasonally ponded is>Y.total area of wetland points=2 Area seasonally ponded is<X total area of wetland points=0 Total for D 1 Add the points in the boxes above 7 Rating of Site Potential If score is:_12-16= H X 6-11= M _0-5=L Record the rating on the first page D 2.0. Does the landscape have the potential to support the water quality function of the site? D 2.1. Does the wetland unit receive stormwater discharges? Yes=1 No=0 0 D 2.2. Is>10%of the area within 150 ft of the wetland in land uses that generate pollutants? Yes=1 No=0 0 D 2.3.Are there septic systems within 250 ft of the wetland? Yes=1 No=0 0 D 2.4.Are there other sources of pollutants coming into the wetland that are not listed in questions D 2.1-D 2.3? 0 Source Yes=1 No=0 Total for D 2 Add the points in the boxes above 0 Rating of Landscape Potential If score is:_3 or 4=H _1 or 2=M X 0=L Record the rating on the first page D 3.0. Is the water quality improvement provided by the site valuable to society? D 3.1. Does the wetland discharge directly(i.e.,within 1 mi)to a stream,river,lake,or marine water that is on the 1 303(d)list? Yes=1 No=0 D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d)list? Yes=1 No=0 1 D 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality(answer YES 0 if there is a TMDL for the basin in which the unit is found)? Yes=2 No=0 Total for D 3 Add the points in the boxes above 2 Rating of Value If score is: X 2-4=H _1=M _0=L Record the rating on the first page Wetland Rating System for Western WA:2014 Update 5 Rating Form-Effective January 1,2015 Wetland name or number B DEPRESSIONAL AND FLATS WETLANDS Hydrologic Functions- Indicators that the site functions to reduce flooding and stream degradation D 4.0. Does the site have the potential to reduce flooding and erosion? D 4.1.Characteristics of surface water outflows from the wetland: 2 Wetland is a depression or flat depression with no surface water leaving it(no outlet) points=4 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outletpoints=2 Wetland is a flat depression(QUESTION 7 on key),whose outlet is a permanently flowing ditch points=1 Wetland has an unconstricted,or slightly constricted,surface outlet that is permanently flowing points=0 D 4.2. Depth of storage during wet periods:Estimate the height of ponding above the bottom of the outlet.For wetlands 3 with no outlet,measure from the surface of permanent water or if dry,the deepest part. Marks of ponding are 3 ft or more above the surface or bottom of outlet points=7 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 points=3 The wetland is a"headwater"wetland points=3 Wetland is flat but has small depressions on the surface that trap water points=1 Marks of ponding less than 0.5 ft(6 in) points=0 D 4.3.Contribution of the wetland to storage in the watershed:Estimate the ratio of the area of upstream basin 0 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 the unit points=5 The area of the basin is 10 to 100 times the area of the unit points=3 The area of the basin is more than 100 times the area of the unit points=0 Entire wetland is in the Flats class points=5 Total for D 4 Add the points in the boxes above I 5 :j Rating of Site Potential If score is:_32-16=H 6-11=M X 0-5=L Record the rating on the first page D 5.0.Does the landscape have the potential to support hydrologic functions of the site? D 5.1. Does the wetland receive stormwater discharges? Yes=1 No=0 0 D 5.2. Is >10%of the area within 150 ft of the wetland in land uses that generate excess runoff? Yes=1 No=0 0 D 5.3. Is more than 25%of the contributing basin of the wetland covered with intensive human land uses(residential at 0 >1 residence/ac,urban,commercial,agriculture,etc.)? Yes=1 No=0 Total for D 5 Add the points in the boxes above 0 Rating of Landscape Potential If score is:_3=H _1 or 2=M X 0=L Record the rating on the first page D 6.0.Are the hydrologic functions provided by the site valuable to society? D 6.1.The unit is in a landscape that has flooding problems.Choose the description that best matches conditions around 0 the wetland unit being rated. Do not add points.Choose the highest score if more than one condition is met. The wetland captures surface water that would otherwise flow down-gradient into areas where flooding has damaged human or natural resources(e.g.,houses or salmon redds): • Flooding occurs in a sub-basin that is immediately down-gradient of unit. points=2 • Surface flooding problems are in a sub-basin farther down-gradient. points=1 Flooding from groundwater is an issue in the sub-basin. points=1 The existing or potential outflow from the wetland is so constrained by human or natural conditions that the water stored by the wetland cannot reach areas that flood.Explain why points=0 There are no problems with flooding downstream of the wetland. points=0 D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? 0 Yes=2 No=O Total for D 6 Add the points in the boxes above 0 Rating of Value If score is:-2-4=H _1=M X 0=L Record the rating on the first page Wetland Rating System for Western WA:2014 Update 6 Rating Form-Effective January 1,2015 Wetland name or number B 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 1 Cowardin plant classes in the wetland.Up to 10 patches may be combined for each class to meet the threshold of Y.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 X Forested(areas where trees have>30%cover) 1 structure:points=0 If the unit has a Forested class,check if.• X 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 0 Check the types of water regimes(hydroperiods)present within the wetland. The water regime has to cover more than 10%of the wetland or%ac to count(see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present:points=3 X Seasonally flooded or inundated 3 types present:points=2 Occasionally flooded or inundated 2 types present:points=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 H 1.3. Richness of plant species 0 Count the number of plant species in the wetland that cover at least 10 ftz. 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 0 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. O 0 None=0 points Low=1 point Moderate=2 points All three diagrams in this row are HIGH=3points Wetland Rating System for Western WA:2014 Update 13 Rating Form-Effective January 1,2015 Wetland.name or number B H 1.5.Special habitat features: 1 Check the habitat features that are present in the wetland. The number of checks is the number of points. X Large,downed,woody debris within the wetland(>4 in diameter and 6 ft long). _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) _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 Y.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) _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 2 Rating of Site Potential If score is:_35-18=H _7-14=M X 0-6=L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat functions of the site? H 2.1.Accessible habitat(include only habitat that directly abuts wetland unit). 3 Calculate: %undisturbed habitat 49.0+[(%moderate and low intensity land uses)/2]8_3 =57.3 % If total accessible habitat is: >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. 3 Calculate: %undisturbed habitat 76.6 +[(%moderate and low intensity land uses)/2]11.1 = 87.7% 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 0 >50%of 1 km Polygon is high intensity land use points=(-2) <-50%of 1 km Polygon is high intensity points=0 Total for H 2 Add the points in the boxes above 6 Rating of Landscape Potential If score is:-4-6=H X 1-3=M _<1=L Record the rating on the first page s the habitat prove a y 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 — 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)within 100 m points=1 Site does not meet any of the criteria above points=0 Rating of Value If score is:-2=H X 1=M _0=L Record the rating on the first page Wetland Rating System for Western WA:2014 Update 14 Rating Form-Effective January 1,2015 Wetland name or number B 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.http://wdfw.wa.govipublications/001651wdfw00165 pdf or access the list from here: http://wdfw.wa.gov/conservation/phs/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. — 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). —X 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). —X 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. — 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 15 Rating Form-Effective January 1,2015 Wetland name or number B CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Wetland Type CatWry Check off any crltedo that apply to the wetland.Circle the category when the appropriate crlterkr.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= of 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? Cat. 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) Cat. —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 Cat.II contiguous freshwater wetlands. Yes=Category I No=Category 11 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 ofnds of High Conservation Value? Yes-Go to SC 2.2 No Go to SC 2.3 Cat.1 SC 2.2.Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? Yes=Category I No=Not a WHCV SC 2.3.Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://wwwl.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.pdf Yes-Contact WNHP/WDNR and go to SC 2.4 No =Not a WHCV SC 2.4. Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Va nd listed it on their website? Yes=Category I No=Not a 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,tha mpose 16 in or more of the first 32 in of the soil profile? Yes-Go to SC 3.3 No Go to SC 3.2 SC 3.2. Does an area within the wetland unit have organic soils,either peats or mucks,that are less an 16 in deep over bedrock,or an impermeable hardpan such as clay or volcanic ash,or that are floating op of a lake or pond? Yes-Go to SC 3.3 No Is not a bog SC 3.3. Does an area with peats or mucks have more than 70%cover of mosses at ground level,AN 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. Cat.1 SC 3.4. Is an area with peats or mucks forested(>30%cover)with Sitka spruce,subalpine fir,western red cedar, western hemlock,lodgepole 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? Yes=Is a Category I bog No=Is not a bog Wetland Rating System for Western WA:2014 Update 16 Rating Form-Effective January 1,2015 Wetland name or number B 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= Category I E>ot a forested wetland for this section Cat.I 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 measured near the bottom) Cat. Yes-Go to SC 5.1 kZ= of 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). Cat.II —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 1/10 ac(4350 ftz) Yes=Category I No=Category 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 Cat — Ocean Shores-Copalis:Lands west of SR 115 and SR 109 Yes-Go to SC 6.1 Onot 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 Cat.II 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 Cat.III 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=Category III No=Category IV Cat.IV Category of wetland based on Special Characteristics If you answered No for all types,enter"Not Applicable"on Summary Form Wetland Rating System for Western WA:2014 Update 17 Rating Form-Effective January 1,201S Wetland name or number This page left blank intentionally 1 1 l 1 Wetland Rating System for Western WA:2014 Update 18 Rating Form-Effective January 1,2015