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Wetland Delineation and Stream Type Report - PLN General - 1/30/2016
TIDE NWTLAND COMPS Wetland Delineation • Habitat Management Plans • Riparian Restoradw • Mitigation • Biological Evaluation RECEIVED AUG 0 7 2017 MASON COS PARCELS: WETLAND DELINEATION AND STREAM TYPE REPORT Bed,Wa pempared ibr: Cady Tree Farm LLC Prepared by: Lee Dead sad$ewer Lase 1 ZU9.16- }PK�i�uz 4'l�ir,�Vatlrm�uoe'9id3�•�I�liosc 380-fi�A�06�g•i0�'iCe�36�0-372-?.�2i TpH,�.E�xWETLAND• CORPS i;�'u_` WcdnWw- HatH�tL�&VcBifE • * wl M r :. mA`gimi aftb fim MASON COUNTY PARCn Sc, Z 280 and IZ379-44-08000; DnVaAnON AND STRPAM TYPE REPORT Bdwr,Ws TAM OF CON UM IINM CnON................................................................................................................... i GENERAL SITE COMMONS.......................................................................................... 1 X9MODOLOOY.............................................................-----................................... 2' BACKGROUND]ONFORSATI+6.............................................._. __.._... ..............---...4 WETLAND DELINEATION RESULTS.............................................................................4 WETLANDEVALUATION..................................................................................................b STREAM EVALUATION..............................................................................7 ,SU140M RY ................................................................................................................8 REFERENCES..........................................................................................................10 UP= Figu.ne 1. Site Vicinity Map, Figure 2. Site Map Figure 3. Nation Wedund1 ►emory Map Figure 4. Mason County Soil Survey Map Figure 3. DNR Water Resource Map Appendix A. Routine Wetland DdiernA ation Data Forms Appendix D. Sod Survey Text Appendix C. Wetland Rating Form The Wetland Corps w. - HaWW Management Plans- Ripanan MmP"on • Biological Evahsation January 2016 Project#TWC16W03 Page 1 of 10 MASON COUNTY PARCELS: 1232941-00180 and 1232944400000 WETLANDDELINEATION AND STREAM TYPE REPORT- Betaic,Wn INTROOUCTKW, The Wetland: Corps has been a>xffiOrlized by Cady Tree Farm LLC to perform a viand delineation and stream type analysis at the properly I xmW m Beffim, Wad, (Taos Identification Number : 12329-41-00180 and 12329-44-00000). The delineation was performed to identify wetlands, streams, and associated buffers that would be applicable to fixture,use.and Zevelopement of the pwveL The s3bjec1t,prmpeVty is located Section 29, of Township 23 North, Range 01 West WM (Figw 1 Viciu:tty )dap). Accoroling to the Mason County Assessor, the properties coliectively occupy 49 acres. For the purposes of federal, Washington State,.and Masan County juriadictional ovesigbt, this wetland defineshm followed the;methodology outlined in the Regional,Supplement to the Corps of l Agmeers Wetland Delineation Manual: Westan Mounttam, Valleys; and Coast Rem (Versim 2.a)U.S. Amy Corps o(FAgivem May 2014. WAC 173�-222-035 states delineations should be done according to this manual and supplements. Tyne changes became effective March 14, 2011. The sections below provide` (1)an Wroduction to the site; (2)a description of methods used in the field delineation; and,(3)technical results. For the purposes of federal, Washington State,and A -Couunty junsdictiomd oveisigK the stream was evaluated according-to The Department of Natural Resources Water Typing criteria(WAC 16.222.03) GENERAL SITE CONDITIONS Ilia properties am situated east and with of the St me e Rmwe.3 coridor m Belfam. There are a series of small commencial properties thm border the p mperties to the north and west along Ste. Large forte residential`owmerahips banter the site on die eat sWe while dw Romance Hill developrnew boulders the property to the souk % general, topography within the property enter steeps moderate, and gentle slopes to the northwest dawn toward a riverine wetland area which occupies the northwestern portion of the site. The wetland is associated with a series of small streams. PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.office Phone 360-372-2421•wetiandcorpS@h0 mail.com Wetland Delineation TWC No.16W03 January 2016 Page No.2 Z 1232941-00180 ENE BELFAIR gr F ��� '' 12.�24.4r-INNNMI r Photo 1.Subject properties as shown on the Mas County GIS. The ownership within and in proximity to the wetland area generally consists of two vegetative communities. A forested upland vegetative community surrounds the wetland within the property, and is comprised of a dense, mature overstory consisting of Douglas fir, red alder, and western red cedar with an understory dominated by swordfern. A wetland community is situated within the lowest point of landscape topography, consisting of deer fern, slough sedge, devils club, various willow species, salmonberry, and skunk cabbage with forested areas consisting of red alder, and western red cedar. METHODOLOGY Consistent with procedures detailed in the Washington State Wetlands Identification and Delineation Manual (Washington State Department of Ecology, 2011) (2011 Manual), preliminary information was gathered on the project site prior to the field review and delineation. General information sources included: 1974 United States Fish and Wildlife Service (USFWS) National Wetland Inventory (NWI) maps, the Soil Survey of Mason PO Box 2854 Belfair,Washington 88528•Cell Phone 360-620-0618-Office Phone 360-372-2421•wetlandcorps a@hotmail.com Wetland Delineation TWC No.16W03 January 2016 Page No.3 County Area, Washington (USDA, 1960), the Washington Department of Natural Resources Water Resource Map, and Mason County's critical areas regulations. Field Delineation The methodology used for this wetland delineation was consistent with the technical approaches articulated in the 2011 Manual. This document is the wetland delineation manual that is used in determining wetland areas when applying state and local government regulations under the Shoreline Management Act and the Growth Management Act in Washington State. Water Type Classifications The following table provides a general description of forest practices water type classifications used to classify identified streams. Type"S"=Shoreline Streams and waterbodies that are designated "shorelines of the .(formerly type 1) state"as defined in chapter 90.58.030 RCW. Type"F"= Fish Streams and waterbodies that are known to be used by fish, or #brmeriy type 2 or 3) meet the physical criteria to be potentially used by fish. Fish streams may or may not have flowing water all year; they may be perennial or seasonal. Type"Np"= Non-Fish Streams that have flow year round and may have spatially Perennial intermittent dry reaches downstream of perennial flow. Type Np (formerly type 4) streams do not meet the physical criteria of a Type F stream. This also includes streams that have been proven not to contain fish using methods described in Forest Practices Board Manual Section 1 Forest Practices Board Manual Section 13. Type"Ns"=Non-Fish Streams that do not have surface flow during at least some portion ,Seasonal of the year, and do not meet the physical criteria of a Type F stream. ffor type§)- -- _ --- _ --- -- ---------— --- --- -- --- -- - Typemery X is a symbol on DNR maps that identifies various water features (E.g. in igation ditches, sanitation ponds, pipeline, etc.) which are not part of the above classifications. Type U is a symbol on DNR maps that identifies untyped water features that need to be verified and identified on proposed forest practices activity maps. The extent and location of suspect wetlands and streams were determined during field work performed in January, 2016. Field work was conducted under rainy conditions with an ambient temperature ranging between 40 and 50 degrees Fahrenheit. The time of year and recent precipitation history were considered in assessing the extent of the suspect wetlands and streams presumed to exist on site. Specific field methodology used in determining the extent and location of wetland and stream areas include: 1. As part of the initial project site reconnaissance, the site was walked to determine the general extent and location of potential wetland and stream areas; 2. Wetland and upland sample plots were established in the identified potential wetland areas and in the adjacent upland area; and PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-312-2421•wetlandcorps@hotmail.com Wetland Delineation TWC No.16W03 January 2016 Page No.4 3. Wetland boundaries were delineated by noting localized topography and vegetation patterns and comparing parameters of hydrology, soil, and vegetation with data collected at the wetland and upland sample plots. The project area was investigated and data was collected at four sample plot locations. Data collected at each sample plot were entered onto a Routine Wetland Determination Data Form. BACKGROUND INFORMATION Mason County Soil Survey The soil survey of Mason County indicates three onsite soil types,(USDA, 1960): Eh—Everett very gravelly sandy loam, 8 to 15 percent slopes Ek—Everett very gravelly sandy loam, 15 to 30 percent slopes A detailed soil description can be found in Appendix B Mason County Soil Survey Text. The Mason County Soil Survey map is shown in Figure 4. National Wetlands Inventory The USFWS NWI map (online wetlands mapper) does not show the wetland within the site location. An extensive estuarine wetland complex is mapped approximately %2 mile to the west. The streams identified on these properties eventually flow into the wetland shown on the NWI. Department of Natural Resources Water Resource Map The Department of Natural Resources Water Resource Map shows three streams within the site. Two of the streams are tributaries to a main channel. The main channel and the lower portions of the two tributaries are labeled as Type F while the upper portions of the tributaries are labeled Type N (Figure 5. DNR Stream Map). For the purpose of rating, this wetland was considered to be associated with the stream and was rated as a riverine wetland. Three other unmapped streams were identified during this review. WETLAND DELINEATION RESULTS One wetland was identified within the ownership. The wetland is saturated at least once a year by overbank flooding and is therefore considered a riverine wetland for the purpose of rating. The entire wetland contains a forested community with a consistent herbaceous/shrub layer in the understory. The wetland is supported by a high water table year round in addition to the overbank flooding. PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•wettandcorps@hotmail.com 0• • • 1 INV AW iz 1 • • 1 - • • 1 1 • 1 1 1 • 1• J • 1 11 . 1 1 1 1 • 1 ' 1 t 1 1 • • 1 � f" L • 1 ! ' _ 11 - _ • 1 f 1 / U - 1 1 • •/� • / •• 1 1 1• •• - /• 1 • 1 1_ 1 1 K fY 'i - +•n« « �. - � �'t4: - it y� Y r /"'l � •.�i -� � .ate ���y ;' t `-' _��' •++::: ;,is�t -�� _ .� _ J ` - � . _ �•-•' y ,F� .Y J�'Ir 't'c_ , ` /+yam yet��; I 1 '• .• • " • •1 • 1 1• • i •1 •1 1 - I•1 0 1 Wetland Delineation TWC No.16W03 January 2016 Page No.6 Vegetation The majority of the wetland is dominated by a community of various willow species (Salix sp.), Horsetail (Equisetum sp.), devils club(Oplopanax horridus), and salmonberry (Rubis spectabilis). Forested portions of the wetland consist of red alder(Alma rubra, FAC)and western red cedar (Thuja plicata, FAC). Wetland vegetation is indicated by hydrophytic vegetation FAC and OBL dominating over 50 percent of the vegetation community in wetland data plots. The upland vegetation adjacent to the wetland area is comprised of Douglas fir (Pseudotsuga mennesii, FACU), red alder (Alnus rubra) and western red cedar (Thuja plicata, FAC). Understory species within the property is primarely swordfern (Polystichum munitum, FACU). Hydophytic vegetation occupies less than 50 percent of the vegetative community in upland data plots. Soils The profiles within the wetland test pits consisted of a single layer profile consisting of muck 10YR 3/1 and 10YR 2/1. Wetland hydric soils are indicated by a loamy, mucky mineral soil containing a low-chrome(equaling one)in all wetland test pits. The soil profiles observed in known upland test pits were consistent with the mapped soil type, EIS--Everett very gravelly sandy loam. The surface layer is dark brown (7.5YR4/3) gravelly loamy sand about 6 inches thick which transitions to a brown very gravelly sandy loam about 15 inches thick (I OYR4/3). Hydrology Wetland hydrology is indicated by drift lines, FAC-neutral vegetation, drainage patterns, water stained leaves, and presumed inundation during the growing season. In addition,the sample plots within the wetland area revealed free water in the test pits at a 3 inch depth and soil saturation to the surface. Upland test pits showed no indicators of wetland hydrology. WETLAND EVALUATION The wetland was classified as a riverine wetland per Washington State Wetland Rating System for Western Washington (Hruby 2004). Based on functional attributes associated with the wetland including habitat, water quality, and hydrology functions, it has been rated as a Category I wetland, scoring 79 points on the state rating form. The score for water quality functions in this wetland is 24, hydrological functions scored 32, and the score for habitat functions is 23 (see Appendix C for rating form). According to Title 17.01.070 of Mason County Code, the base buffer width for Category I Wetlands scoring 23 points in habitat function,within parcels intended for Moderate Impact Land Use is 110 feet with an additional 15-foot building setback. Moderate Impact Land Use is described as single-family residential lots,residential subdivisions with I unit/acre or less, Moderate- PO Box 2954 Belfair,Washington 98528-Cell Phone 360-620-0618•Office Phone 360-372-2421•wetlandcorps®hotmail.com Wetland Delineation TWC No.I6W03 January 2016 Page No.8 do not maintain year round flow, they meet the Department of Natural Resources Water Typing Criteria (WAC 16.222.031) for a type Ns stream. Type Ns streams in Mason County require a 75-foot buffer with an additional 15-foot building setback. If it could be verified through dry season observation that the stream channels maintain consistent flow throughout the year, they would be classified as Type Np streams requiring a 100-foot buffer with a 15-foot building setback. M �r r4 Photo 5. Representative portion of streams B,C,and E. Channels less than 2'wide. SUMMARY This report documents the presence of a wetland meeting criteria for a Category I Wetland associated with a series of stream channels within the subject property. According to Mason County Code, the wetland requires a 110-foot buffer with additional 15-foot building setback. The Type F streams require a buffer of 150-feet with an additional 15- foot building setback. Type Ns streams require a 75 foot buffer with a 15' building setback. See Figure 2. Site Map for the approximate location of the wetland and the type F streams. PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•wedandcorps@hotmail.com 110W.—M Type F Stream Type Ns Stream { Wetland Edge Wetland Buffer 1 This site map was created by TWC by coordinating measurements and information from several sources, including - the Mason County Assessor Aerial Photo M '* 2009 and GoogleEarth aerial images and field review. All locations are approximate. FIGURE 2. SITE MAP MASON COUNTY PARCELS: M29-41-00180 and M29- 44-00000 WETLAND DELINEATION AND STREAM TYPE REPORT Project Number: TWC16-WO3 j Client:Cady Tree Farm LLC THE WETLAND CORPS Location: Belfair,WA Date: 1/2016 Wetland Delineation TWC No.16W03 January 2016 Page No.7 intensity open space(parks), New agriculture (moderate-intensity such as orchards and hay fields),and Transportation enhancement projects. 1 If the intended land use meets criteria for High Impact Land Use the base buffer width Z� would be increased to 200 feet with an additional 15-foot building setback. High Impact Land Use is Commercial, Urban, Industrial, Institutional, Retail Sales, Residential subdivisions with more than 1 unit/acre, New agriculture (high-intensity processing such as dairies, nurseries and green houses,raising and harvesting crops requiring annual tilling, raising and maintaining animals), New transportation corridors, High intensity recreation (golf courses,ball fields),and hobby farms. STREAM EVALUATION Six streams were identified within the site. The map shown in figure 2 shows the approximate location and extent of the streams channels. During the field review all channels were inundated one to four inches in depth with contiguous flow. The portion of streams A, D, and F within the property maintain a channel width greater than 2 feet with gradient ranging from 1 to 3 percent. Such characteristics meet criteria for Type F Streams. -r �{ 4 -S t � t I . Photo 4. Type F Stream Channels Greater than 2'wide. Streams B, C, and E maintain channel widths less than 2 feet and appear to flow seasonally. The channel gradient ranges from eight to twelve percent which meets the gradient criteria for potential fish bearing habitat. However, since the channels are less than two feet in width, they cannot be considered Type F Streams. Presuming the streams PO Box 2854 Belfair,Washington 98528-Cell Phone 360-620-0618-Office Phone 360-372-2421-wetlandcorps@hotmail.com Wetland Delineation TWC No.16W03 January 2016 Page No.9 Thank you for choosing the Wetland Corps as your environmental consultant. If you have any questions, feel free to call. Respectfully submitted, The Wetland Corps "izz:l . &'---e— Heather Lane Staff Wetland Specialist Lee Boad Senior Ecologist PO Box 2854 Belfair,Washington 98528-Cell Phone 360-620-0618.Office Phone 360-372-2421-wetlandcorps@hotmail.com REFERENCES Cowardin, L.M., V. Carter,F.C. Golet and E.T. LaRoe, 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S. Fish and Wildlife Service document FWS/OBS-79/31. 84 pp. Washington, D.C. Hitchcock, L.C. and A. Cronquist, 1973. Flora of the Pacific Northwest. University of Washington Press.. 730 pp. Hruby, T.,2004. Washington State Wetland Rating System for Western Washington—Revised. Washington State Department of Ecology Publication#04-06-025. Munsell Soil Color Charts, 1998. GretagMacbeth. New Windsor,New York. Pojar,J. and A. MacKinnon, 1994.Plants of the Pacific Northwest Coast. Lone PinePublishing. 528 pp. Vancouver,British Columbia. Speare-Cooke, S., 1997. A Field Guide to the Common Wetland Plants of Western Washington and Northwestern Oregon. Seattle Audubon Society. 417 pp. US Department of Agriculture, Soil Conservation Service. Soil Survey of Pierce County Area, Washington. September, 1977. US Fish and Wildlife Service. National Wetlands Inventory. 1978. Washington State Department of Ecology, 1997. Washington State Wetland Identification and Delineation Manual. Ecology Publication#96-94, various pagination. Olympia, Washington. Washington State Department of Ecology, 1993. Washington State Wetlands Rating System, Western Washington Second Edition. 61 pp.Ecology Publication#93-74. Olympia, Washington. Washington State Department of Ecology, 1999. Methods for Assessing Wetland Functions for Reverine and Depressional Wetlands in the Lowlands of Western Washington. Ecology Publication#99-115. Olympia, Washington. United States Fish and Wildlife Service, 1993.National List of Plant Species that Occur in Wetlands Region 9—Northwest. Resource Management Group PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•wetlandcorps@hotmail.com Y t i t' ! I` --- F i *� HEyv � Beifrit s t v I-41n?C ra Aroz UJ r Approximate Site Location :i sr�a r:rA RE Beta Hs FIGURE L SITE MAP MASON COUNTY PARCELS: 12329-41-00190 and 1232944--00000 WETLAND DELINEATION AND STREAM TYPE ur REPORT THE WETLAND CORPS Project Number: TLL 03 Client:Cady Tree Farm arm LLC Location: Belfair,WA Date: 1/2016 National Wetlands lnvento U.S,Fish arid Vhldlll- S—C� Available Layers Approximate Site Location Its WeGandy 0 ©ltt�wlr.wa t'wirt Dt.r•.Nr Etdrrir.wy 1'.An'::.Il.r� fnit..l41 Ent�Irl 5'71GIr! fnd,ntu renrt.s;FnF t7.tbr! �rnrt.narrve l.4 FIv.Yr♦ Wattandy FIDDpta9 Statat tw Dr4 Figure adapted from the NWI Mapping Website Figure 3. NWI Map Section 33 Township 27 North Range 2 West FIGURE 3. NWI WETLANDS MAP MASON COUNTY PARCELS: 1232941-00180 and 12329- 44-00000 WETLAND DELINEATION AND STREAM TYPE THE WETLAND CORPS REPORT Project Number: TWC16-W03 Client:Cady Tree Farm LLC Location: Belfair,WA Date: 1/2016 Eh Ek E IffffI II I Mason County Soil Survey { Eh—Everett eery gravelly sandy loam, 8 to 15 percent slopes Ek—E verett very gravelly sandy loam, 9.5 to 30 percent slopes I FIGURE 4. MASON COUNTY SOIL SURVEY MASON COUNTY PARCELS: 1232941-00190 and 12329- 44-00000 WETLAND DELINEATION AND STREAM TYPE REPORT it Project Number: TWC16-W03 THE WETLAND C®I%X DDS Location: tree Farm LLC Locaation:n: Belfair,WA Date: 1/2016 x imratc ��� neMrt . - f I 1 1tWBN t7. •,?r*IA6 Water Bodies � :'hater Bodies j FtatvC-r vei Bar. ice f s ® Liar,wade Features !` Open%'ater `:. .•'let Area Streams Streams — Type Apx"o - ateSite — Type F Xlm --- Type r:.N*D.N* LOCadon U.unkno :n X.non-typed per:..:G 222 6 FIGURE 5. WA DNR WATER RESOURCE MAP MASON COUNTY PARCELS: 12329-41-00180 and 1=9-44- 00000 WETLAND DELINEATION AND STREAM TYPE REPORT -�� Project Number: TWC16-W03 Client:Cady Tree Form LLC THE WETLAND CORPS LOeanon: BeMir,WA Date: 112016 APPENDIX B Soil Survey Teat The Everett series consists of somewhat excessively drained, pale-brown gravelly soils. They occur as inextensive gravel ridges on the glacial moraines or, more commonly, asfairly continuous outwash channels between ridges of Alderwoodsoils. They have developed upon assorted glacial rill andoutwash material. The rainfall is 45 to 60 inches a year.The vegetation is mainly drought-resistant madrone,manzanita, and kinnikinnick.Everett soils are droughty because the loose gravel andsandy subsoil and substratum offer little resistance todownward movement of water. The capacity of the surface soilto hold available moisture is low.Everett soils are in the eastern half of the county, inassociation with the Alderwood soils. They also occur in intricatepatterns with the Kitsap and Indianola soils. Compared tothe Grove soils, the Everett soils have a paler surface soiland subsoil and, in development, were dominated more by acidigneous parent rock. Everett gravelly sandy loam,5 to 15 percent slopes (Eh).-This is the most extensive Everett soil. In undisturbed forests 1 to 2 inches of very dark grayish-brown material, amixture of needles, leaves, twigs, cones, moss, and roots,covers the surface. The surface soil is loose, single-grained,pale-brown, gravelly sandy loam, 6 to 8 inches thick. The upper2 or 3 inches normally contains aggregates that are slightlyhard and redder than the others in the layer. To depthsranging from 18 to 24 inches, the subsoil is loose, singlegrained,light yellowish-brown gravelly sandy loam or gravellyloamy sand. The amount of shot decreases with depth; inthe lower part only a few shot occur.The subsoil grades to a substratum of poorly assorted.predominantly yellowish-brown sand, gravel, and cobblymaterial that is extremely loose and porous. However, inplaces, this material will stand in banks. The color of thismaterial is largely determined by the gavel, coarse sand,and cobbles, which are olive gray, pale olive, yellowishbrown, light brownish gray, gray, and dark gray. Many ofthe cobbles, as well as much of the gravel, are faintly tomoderately stained by iron.The amount of gravel ranges from about 20 percent to 50percent in the subsoil to as much as 80 percent in thesubstratum. The soil is medium to strongly acid andbecomes less acid with depth. Use and suitability.-This soil is too droughty for mosttilled crops--it dries out before crops mature. Only a verysmall acreage is cultivated, and this is ordinarily farmedalong with better adjacent soils. Most of this soil is in brushand trees, for which it is suited best. It is one of the bettersoils for growing Douglasfirs that are cut for Christmas trees.This is an important use of the soil; large acreages are usedfor Christmas trees.This soil is in capability subclass VIs and in site class 4for Douglas-fir. Everett gravelly sandy loam, 15 to 30 percent slopes (Ek).-This soil is on the steeper slopes of glacial moraines,sides of gullies, and terrace fronts. It is closely associatedwith other Everett soils and the Alderwood gravelly sandyloams.This soil is more variable than Everett gravelly sandyloam, 5 to 15 percent slopes. The depth to substratum rangesfrom 12 to 36 inches, and the amount of gravel in the surfacesoil and subsoil varies greatly from place to place. Where thesoil is in close association with the Alderwood soils, thesubstratum, in places, is compact and weakly cemented.Inciuded are a few areas having slopes slightly greaterthm 30 percent.Use and suitability.-This soil is suitable only forforestry because it is strongly sloping,droughty, and low infertility. It is in capability subclass VIs and in site class 5 forpouglas-fir. Appendix C Washington State Wetland Rating System Form Wetland name or number WETLAND RATING FORM — WESTERN WASHINGTON Version 2—Updated July 2006 to increase accuracy and reproducibility among users Updated Oct.2008 with the new WDFW definitions for priority habitats Name of wetland(if known):Belfair Wetland Date of site visit: 1/16 Rated by:ft Trained by Ecology? Yes IR No ❑ Date of training:l /06 SEC:29 TOWNSHP: 23N RNGE: 1 W Is S/T/R in Appendix D? Yes❑ No Map of wetland unit: Figure 2 Estimated size>5 acres SUMMARY OF RATING Category based on FUNCTIONS provided by wetland: ®I ❑II ❑ III ❑ IV Category I = Score> 70 Score for Water Quality Functions 24 Category II= Score 51 -69 Score for Hydrologic Functions 32 Category III = Score 30—50 Score for Habitat Functions 23 Category IV = Score<30 TOTAL Score for Functions 79 Category based on SPECIAL CHARACTERISTCS of Wetland ® I ❑II ❑Does not apply Final Category(choose the"highest"category from above") j • Summary of basic information about the wetland unit. Estuarine 7Fresh!wa!ter l Natural Heritage Wetland Bo Lake-fringe Mature Forest slope Old Growth Forest Coastal Lagoon Tidal Interdunal -H- _ 77 None of the above ❑ Check if unit has multiple HGM classes present Does the wetland being rated meet any of the criteria below? If you answer YES to any of the questions below you will need to protect the wetland according to the regulations regarding the special characteristics found in the wetland. SP 1. Has the wetland unit been documented as a habitat for any Federally listed Threatened or Endangered animal or plant species (TIE species)? ❑ For the purposes of this rating system, "documented"means the wetland is on the appropriate state or federal database. SP2. Has the wetland unit been documented as habitat for any State listed Threatened or Endangered animal species? For the purposes of this rating system, "documented"means the wetland is on the appropriate state database. Note: Wetlands with State listed plant species are categorized as Category I Natural Heritage Wetlands see p. 19 of data form . SP3. Does the wetland unit contain individuals of Priority.species listed by the WDFW or the state? ❑ SP4. Does the wetland unit have a local significance in addition to its functions? For example, the wetland has been identified in the Shoreline Master Program,the Critical Areas Ordinance, or ❑ in a local management plan as having special significance. To complete the next cart of the data sheet you will need to determine the Hydrogoomorphic Class of the wetland being rated The hydmgmmaphic classifiwtim groups ucdmds in to those that f mcbm in smilw ways. This similifies the qua needed to mswcr how well doe wdimd finctiam The Hydnogeomorphic Class ofa wedmr d can be dete mmed using the key below. Seep.24 formre det W irstnrtiorts on cj&ssifyitg wetian& Wetland Rating Form—Western Washington,Version 2(1/06),updated with new WDFW definitions Oct.2008 Page l of 12 Wetland name or number Classification of Vegetated Wetlands for Western Washington 1. Are the water levels in the entire unit usually controlled by tides(i.e. except during floods)? ❑NO-go to 2 ❑ YES-the wetland class is Tidal Fringe If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt(parts per thousand)? ❑YES-Freshwater Tidal Fringe ❑NO-Saltwater Tidal Fringe(Estuarine) Ifyour wetland can be classified as a Freshwater Tidal Fringe use the forms for Rtuine wetlanu&. ff it is a Saltwater Tidal Fringe it is rated as an Estuarine wetb id Wetlands that were call estuarine in the first and second editions of the rating system are called Salt Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were categorized separately in the earlier editions,and this separation is being kept in this revision. To maintain n consistency between editions,the term"Estuarine"wetland is kept Please Hobe,however,that the characteristics that define Category I and 11 estuarine wetlands have changed(see p ) 2. The entire wetland unit is flat and precipitation is 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 If your wetland can be classified as a"Flats"wetland,use the form for Depressional wetlands 3. Does the entire wetland meet both of the following criteria? ❑ The vegetated part of the wetland is on the shores of a body of permanent open water(without any vegetation on the surface)where at least 20 acres (8ha) in size; ❑At least 30%of the open water area is deeper than 6.6(2 m)? NO-go to 4 YES-The wetland class is Lake-fringe(Lacustrine Fringe) 4. Does the entire wetland meet all of the following criteria? ® The wetland is on a slope (slope can be very gradual). ® The water flows through the wetland in one direction(unidirectional)and usually comes from seeps. It may flow subsurface,as sheetflow, or in a swale without distinct banks. ❑The water leaves the wetland without being impounded? NOTE: Surface water does not pond in these types of wetlands except occasionally in very small and shallow depressions or behind hummocks(depressions are usually<3 ft diameter and less than I foot deep). ®NO-go to 5 ❑YES-The wetland class is Slope 5. Does the entire wetland meet all of the following criteria? ® The unit is in a valley or stream channel where it gets inundated by overbank flooding from that stream or river. ®The overbank flooding occurs at least once every two years. NOTE: The riverine unit can contain depressions that are filled with water when the river is notJlooding.. ❑NO-go to 6 0 YES-The wetland class is Riverine 6. Is the entire wetland unit in a topographic depression in which water ponds,or is saturated to the surface, at some time of 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 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 IDEN71FY WHICH OF THE HYDROLOGIC REGMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT(matte a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within your wetland. NOTE: Use this table only ifthe class that is recommended in the second cohuun represents 109/o or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less than 100/0 of the unit,classify the wetland using the class that represents more than 900/6 of the total area. -Slope+Riverine Riverine -Slope+Depressional Depressional Slope+Lake-fringe Lake-fringe Depressional+Riverine along stream within boundary_ De ressional Depressional+Lake-fringe Depressional Salt Water Tidal Fringe and any other class of Treat as ESTUARINE under wetlands with special freshwater wetland characteristics If you are unable still to determine which of the above criteria apply to your wetland, or you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Wetland Rating Form-Western Washington,Version 2(7/06),updated with new WDFW definitions Oct.2008 Page 2 of 12 Wetland name or number R 1 Does the wetland have the potential to improve water quality?(see p.52) R 1.1 Area of surface depressions within the riverine wetland that can trap sediments during a flooding4en • Depressions cover>3/4 area of wetland.........................................................................pointsure j] • Depressions cover> 1/2 area of wetland.........................................................................points (If depressions>1/2 of area of unit draw polygons on aerial photo or map) • Depressions present but cover< 1/2 area of wetland.......................................................points• No de ressions resent................................ p .....;gh) ...... oints4 ........ . ........R 1.2 Characteristics of the vegetation in the unit(areas with>90%cover at erson hei t :• Trees or shrubs>2/3 area of the unit........................ points ure......................................................• Trees or shrubs> 1/3 area of the wetland .................................................... points..................• ngrazed,herbaceous plants>2/3 area of unit............... ...........points.....................................• Ungrazed herbaceous plants> 1/3 area of unit................................................ points• Trees,shrubs and un '."" "" grazed herbaceous< I/3 area of unit......................... points 8 Aerial photo or map showing Polygons of different vegetation types Add the points in the boxes above 1 R 2 Does the wetland have the opportunity to improve water quality? (seep. 53) Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from the wetland. Note which of the following conditions provide the sources of pollutants. A unit may ave pollutants coming from several sources, but any single source would qualify as opportunity. Grazing in the wetland or within 150 ft Untreated stormwater discharges to wetland Tilled fields or orchards within 150 ft.of wetland A stream or culvert discharges into wetland that drains developed areas,residential areas, farmed fields, roads,or clear-cut logging ® Residential, urban areas,golf courses are within 150 ft.of wetland The river or stream linked to the wetland has a contributing basin where human activities have raised levels of sediment,toxic compounds or nutrients in the river water above standards for water Multiplier quality. ❑Other 2 YES multiplier is 2 NO multiplier is 1 ♦ TO —Water Quality Functions Multiply the score from R1 by R2•then add score to table on . 1 R 3 Does the wetland have the 22ftntiLl to reduce flooding and erosion? R 3.1 Characteristics of the overbank storage the wetland provides: 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 Figure II banks). Calculate the ratio: (average width of unit)/(average width of stream between banks). • If the ratio is more than 20.............................................................................. points=9 • If the ratio is between 10—20 .""'""""'........................................................................................points=6 • If the ratio is 5-<10....................................................................................... ...........points=4 • If the ratio is l-<5........ .. . • If the ratio is< 1 .......................:.............................................. .................................... points=2 9 ................................. .................................................points= 1 Aerial Photo or in showin avers a widths R 3.2 Characteristics of vegetation that slow down water velocities duringfloods. Treat large woody debris as 'forest or shrub". Choose the points appropriate for the best description. (polygons need to have >90 Figure[j cover at person height NOT Cowardin classes): • Forest or shrub for> 1/3 area OR herbaceous plants>2/3 area......................................points=7 • Forest or shrub for> 1/10 area OR herbaceous plants> 1/3 area.....................................points=4 • Vegetation does not meet above criteria........ . ...points=0 . . . . ........................................ Aerial bolo or ma showin Polygons of different vegetation es __ _ Add the points in the boxes above 1r R 4 Does the wetland have the opportunity to reduce flooding and erosion? (see p.57) Answer YES if the wetland is in a location in the watershed where the flood storage,or reduction in water velocity,it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Note which of thefollorwing conditions apply. ®There are human structures and activities downstream(roads,buildings, bridges,farms)that can be damaged by flooding. 8 There are natural resources downstream(e.g.salmon redds)that can be damaged by flooding Other Multiplier (Answer NO if the major source of water to the wetland is controlled by a reservoir or the wetland is tidal fringe along the sides of a dike) 2 ®YES multiplier is 2 ❑ NO multiplier is I ♦ TOTAL—Hydrologic Functions --Multiply the score from R3 by R4,then add score to table on p. 1 Comments: Wetland Rating Form—Western Washington,Version 2(7/06),updated with new WDFW definitions Oct.2008 Page 5 of 12 i Wetland name or number H 1 Does the wetland have the 2gkotia to provide habitat for many species? H 1.1 Vegetation structure(see P. 72): Check the types of vegetation classes present(as defined by Cowardin)—Size threshold for each class is Figure 114 acre or more than 10%of the area if unit is smaller than 2.5 acres. Aquatic Bed Emergent plants Scrub/shrub(areas where shrubs have>30%cover) Forested(areas where trees have>30%cover) I the unit has a forested class check if: The forested class has 3 out of 5 strata(canopy,sub-canopy,shrubs,herbaceous,moss/ground-cover) that each cover 20%within the forested polygon. Add the number of vegetation types that qualify. If vou have: Map of Cowardin vegetation classes 2 4 structures or more.......points=4H 3 structures.............points=2 2 structures....................points= ] 1 structure...............points=0 H 1.2 Hydroperiods(see p.73): Check the types of water regimes(hydroperiods)present within the wetland The water regime has to Figure cover more than 10%of the wetland or 114 acre to count(see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present points=3 Seasonally flooded or inundated 3 or more types present points=2 Occasionally flooded or inundated 2 types present points= I Saturated only type p points=0 Permanently flowing stream or river in,or adjacent to,the wetland Seasonally flowing stream in,or adjacent to,the wetland Lain-fringe wetland.....................=2 points Freshwater tidal wetland.............=2 points Map of hydroperiods 2 H 1.3 Richness of Plant Species (seep. 75): Count the number of plant species in the wetland that cover at least 10 ft'(different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass,purple loosestrife, Canadian Thistle. If you counted: > 19 species.......................points=2[[]] 5— 19 species....................points= I p9 l List species below if you want to: <5 species............... �� ]]....... .points=0 H 1.4 Interspersion of Habitats (see p. 76): Decided from the diagrams below whether interspersion between Cowardin vegetation(described in H1.1),or the classes and unvegetated areas(can include open water or mudflats)is high,medium,low,or none. -O _) (4) Figure None=0 points Low=1 point Moderate=2 points [riparian braided chaanels7 High =3 points 3 Note: If you have 4 or more classes or 3 vegetation classes and open water,the rating is always"high". H 1.5 Saecial Habitat Features(seep. 77): Use map of Cowardin classes. Check the habitat features that are present in the wetland. The number of checks is the number of point you put into the next column. Large,downed,woody debris within the wetland(>4 in.diameter and 6 ft.long) Standing snags(diameter at the bottom>4 inches)in the wetland Undercut banks are present for at least 6.6 ft.(2m)and/or overhanging vegetation extends at least 3.3 ft.(lm)over a stream(or ditch)in,or contiguous with the unit,for at least 33 ft.(I0m) ❑ Stable steep banks of fine material that might be used by beaver or muskrat for dennmg (> 30 degree slope)OR si s of recent beaver activity are present(cut shrubs or trees that have not yet turned grey/brown ® At least 1/4 acre of thin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-la)ing by amphibians) ®Invasive plants cover less than 25%of the wetland area in each stratum of plants NOTE: The 20%stated in early printings of the manual on page 78 is an error. 4 H 1 TOTAL Score—potential for providing habitat Add the points in the column above 12 Wetland Rating Form—Western Washington,Version 2(7/06),updated with new WDFW definitions Oct.2008 Page 8 of 12 i Wetland name or number H 2 Does the wetland have the opportunity to provide habitat for many species? H 2.1 Buffers(see P. 80): Choose the description that best represents condition of buffer of wetland unit. The highest scoring Figure criterion that applies to the wetland is to be used in the rating. See text for definition of"undisturbed". ❑ l 00m(330 ft)of relatively undisturbed vegetated areas,rocky areas,or open water> 95%of circumference. No structures are within the undisturbed part of buffer (relatively undisturbed also means no grazing,no landscaping,no daily human use).............points=5 ❑ 100m(330 ft)of relatively undisturbed vegetated areas,rocky areas,or open water> 50%circumference........................................................................................................points=4 ❑ 50m(170 ft)of relatively undisturbed vegetated areas,rocky areas,or open water >95%circumference....................................................................................................points=4 ❑ 100m(330 ft)of relatively undisturbed vegetated areas,rocky areas,or open water> 25%circumference........................................................................................................points=3 ®50m(170 ft)of relatively undisturbed vegetated areas, rocky areas,or open water for >50%circumference....................................................................................................points=3 If buffer does not meet any of the criteria above: ❑No paved areas(except paved trails)or buildings within 25m(80 ft)of wetland >95% circumference. Light to moderate grazing or lawns are OK..........................................points= ❑No paved areas of buildings within 50m of wetland for>50%circumference. Light to moderate grazing or lawns are OK.............................................................................points=2 ❑Heavy grazing in buffer.....................................................................................................points= 1 ❑ Vegetated buffers are<2m wide(6.6 ft)for more than 95%circumference (e.g.tilled fields,paving,basalt bedrock extend to edge of wetland).............................points=0 ❑Buffer does not meet any of the criteria above...................................................................points= 1 3 Arial photo showing buffers H 2.2 Corridors and Connections(seep. 81) H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor(either riparian or upland)that is at least 150 ft. wide,has at least a 30%cover of shrubs, forest or native undisturbed prairie,that connects to estuaries, other wetlands or undisturbed uplands that are at least 250 acres in size? (Dams in riparian corridors, heavily used gravel roads,paved roads, are considered breaks in the corridor). ❑YES=4 points(go toH2.3) 0NO=gotoH2.2.2 H.2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor(either riparian or upland)that is at least 50 ft.wide,has at least 301/6 cover of shrubs or forest,and connects to estuaries,other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake- fringe wetland, if it does not have an undisturbed corridor as in the question above? ®YES=2 points(go to H 2.3) ❑NO=go to H 2.2.3 H. 2.2.3 Is the wetland: • Within 5 mi(8km)of a brackish or salt water estuary OR • Within 3 miles of a large field or pasture(>40 acres)OR ❑ YES= I point 2 • Within I mile of a lake greater than 20 acres? ❑ NO=0 points Comments- Wetland Rating Form—Wcstern Washington,Version 2(7/06),updated with new WDFW definitions Oct.2008 Page 9 of 12 Wetland name or number H 2.3 Near or adiacent to other priories habitats listed by WDFW(see p. 82): (see new and complete descriptions of WDFW priority habitats, and the counties in which they can be found in the PHS report htW://wd .wa.gov/hab Phslisi.him) Which of the following priority habitats are within 330 ft.(10(hm)of the wetland unit? NOTE:the connections do not have to be relatively undisturbed ❑Aspen Stands:Pure or mixed stands of aspen greater than 0.4 ha(1 acre). ❑Biodiversity Areas and Corridors:Areas of habitat that are relatively important to various species of native fish and wildlife(full descriptions In WDFW PHS report p. 152). ❑Herbaceous Balds:Variable size patches of grass and forts 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 20 trees/ha(8 trees/acre)>81 cm(32 in)dbh or> 200 years of age.(Mature forests)Stands with average diameters exceeding 53 cm(21 in)dbh;crown cover may be le °less that loo/o;decay,decadence,numbers of ,and quantity of a downed�� q h' �g material is generally less than that found in old-growth;80-200 years old west of the Cascade crest. ❑Oregon white Oak.Woodlands Stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important(full descriptions in WDFW PHS report p. 158). ®Riparian:The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. ❑Westside Prairies:Herbaceous,non-forested plant communities that can either take the form of a dry prairie or a wet prairie(full descriptions in WDFW PHS report p. 161). ®Instream:The combination of physical,biological,and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. ❑Nearshore:Relatively undisturbed nearshore habitats.These include Coastal Nearshore,Open Coast Nearshore, and Puget Sound Nearshore.(full descriptions of habitats and the definition of relatively undisturbed are in WDFW report:pp. 167-169 and glossary in Appendix A). ❑Caves:A naturally occurring cavity,recess,void,or system of interconnected passages under the earth in soils, rock,ice,or other geological formations and is large enough to contain a human. ❑Cliffs:Greater than 7.6 in(25 ft)high and occurring below 5000 ft. ❑Talus:Homogenous areas of rock rubble ranging in average size 0.15-2.0 in(0.5-6.5 ft),composed of basalt, andesite,and/or sedimentary rock,including riprap slides and mine tailings.May be associated with cliffs. ®Snags and Logs:Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife.Priority snags have a diameter at breast height of>51 cm(20 in)in western Washington and are>2 in(6.5 ft)in height.Priority logs are>30 cm(12 in)in diameter at the largest end,and>6 in(20 ft)long. If wetland has 3 or more priority habitats=4 points If wetland has 2 priority habitats=3 points If wetland has 1 priority habitat=1 point = Note:All vegetated wetlands are by definition a priority habitat but are not included in this list.No habitats 0 points 3 Nearby wetlands are addressed in question H 2.4 H 2.4 Wetland Landscape: Choose the one description of the landscape around the wetland that best fits(seep. 84) • There are at least 3 other wetlands within 1/2 mile,and the connections between them are relatively undisturbed(light grazing between wetlands OK,as is lake shore with some boating, but connections should NOT be bisected by paved roads,fill,fields,or other development....points=5 ❑ • The wetland is Lake-fringe on a lake with little disturbance and there are 3 other lake-fringe wetlandswithin 1/2 mile.............................................................................................. .points=5 ❑ • There are at least 3 other wetlands within 1/2 mile,BUT the connections between them are disturbed...................................................................................................................... .points=3 • The wetland fringe on a lake with disturbance and there are 3 other lake-fringe wetlands within1/2 mile............................................................................................................. .points=3 ❑ • There is at least 1 wetland within 1/2 mile......................................................................points=2 ❑ • There are no wetlands within 1/2 mile ......points=0❑ 3 . . ................................................... H 2 TOTAL Score—opportunity for providing habitat Add the scores from H2.1, H2.2, H2.3, H2.4 11 TOTAL for H 1 from page 8 12 ♦ Total Score for Habitat Functions Add the points for H 1 and H 2;then record the result on p. I Comments: "��""J CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Wetland Rating Form—Western Washington,Version 2(7/06),updated with new WDFW definitions Oct.2008 Page 10 of 12 Wetland name or number CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Please determine if the wetland meets the ath►ibutes described below and circle the appropriate answers and Category. SC Estuariae wetlands? (see p.86) Does the wetland unit meet the following criteria for Estuarine wetlands? ❑The dominant water regime is tidal, ❑ Vegetated,and ❑ With a salinity eater than 0.5 ppt. U YES =Go to SC 1.1 ® NO SC 1.1 Is the wetland unit within a National Wildlife Refuge,National Park,National Estuary Reserve,Natural Cat. 1 Area Preserve, State Park or Educational,Environmental, or Scientific Reserve designated under WAC ❑ 332-30-151? ❑YES =Category I ❑NO=go to SC 1.2 SC 1.2 Is the wetland at least 1 acre in size and meets at least two of the following conditions? ❑YES =Category I ❑NO=Category II Cat. I ❑The wetland is relatively undisturbed (has no diking,ditching, filling,cultivation,grazing,and has ❑ less than 10%cover of non-native plant species. If the non-native Spartina spp,.are only species Cat.II that cover more than 10%of the wetland,then the wetland should be given a dual rating(I/I1). ❑ The area of Spartina would be rated a Category II while the relatively undisturbed upper marsh with native species would be a Category 1. Do not,however,exclude the area of Spartina in determining the size threshold of 1 acre. Dual ❑At least 3/4 of the landward edge of the wetland has a 100 ft.buffer of shrub, forest,or un-grazed or Rating un-mowed grassland I/II ❑The wetland has at least 2 of the following features: tidal channels,depressions with open water, or ❑ contiguous freshwater wetlands. C2 Natural Heritage Wetlands (seep. 87) Natural Heritage wetlands have been identified by the Washington Natural Heritage Program/DNR as either high quality undisturbed wetlands or wetlands that support state Threatened,Endangered,or Sensitive plant species. SC 2.1 Is the wetland being rated in a Section/Township/Range that contains a natural heritage wetland? (This question is used to screen out most sites before you need to contact WNHP/DNR.) ❑ S/T/R information from Appendix D ®or accessed from WNHP/DNR web site ❑YES Contact WNHP/DNR (see p. 79)and go to SC 2.2 ®NO SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as a site with state threatened or endangered plant species? Cat I [3YES =Category 1 ® NO not a Heritage Wetland ❑ C3 Bogs(see p. 87) Does the wetland(or any part of the unit)meet both the criteria for soils and vegetation in bogs? Use the key below to identify if the wetland is a bog. if you answer yes you will still need to rate the wetland based on its function. 1. Does the unit have organic soil horizons(i.e. layers of organic soil),either peats or mucks,that compose 16 inches or more of the first 32 inches of soil profile? (See Appendix B for a field key to identify organic soils)? ❑YES=go to question 3 ®NO=go to question 2 2. Does the wetland have organic soils,either peats or mucks that are less than 16 inches deep over bedrock, or an impermeable hardpan such as clay or volcanic ash,or that are floating on a lake or pond? ❑YES=go to question 3 ®NO=is not a bog for purpose of rating 3. Does the unit have more than 70%cover of mosses at ground level, AND other plants, if present, consist of the"bog"species listed in Table 3 as a significant component of the vegetation(more than 30%of the total shrub and herbaceous cover consists of species in Table 3)? ❑YES=Is a bog for purpose of rating ❑NO=go to question 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"deep. If the pH is less than 5.0 and the"bog"plant species in Table 3 are present,the wetland is a bog. 4. Is the unit forested(>30%cover)with sitka spruce,subalpine fir,western red cedar,western hemlock,lodgepole pine,quaking aspen,Englemann's spruce,or western white pine. WITH any of the species(or combination of species)on the bog species plant list in Table 3 as a significant component of the ground cover(> 30%coverage of the total shrub/herbaceous cover)? Cat. I ❑YES=Category I ❑ NO =Is not a bog for purpose of rating Wetland Rating Form—Western Washington,Version 2(7/06),updated with new WDFW definitions Oct.2008 Page i l of 12 Wedand name or number C4 Forested Wetlands (seep. 90) Does the wetland have at least 1 acre of forest that meet one of these criteria for the Department of Fish and Wildlife's forests as priority habitats? If you answer yes you will still need to rate the wetland based on its function. ❑Old-growth forests: (west of Cascade Crest) Stands of at least two three species forming a multi- layered canopy with occasional small openings;with at least 8 trees/acre(20 trees/hectare)that are at least 200 years of age OR have a diameter at breast height(dbh)of 32 inches(81 cm or more). NOTE: The criterion for dbh is based on measurements for upland forests. Two-hundred year old trees in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW criterion is and"OR"so old-growth forests do not necessarily have to have trees of this diameter. ®Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80—200 years old OR have an average diameters(dbh)exceeding 21 inches(53 cm);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. Cat.I ®YES=Category I ❑ NO=not a forested wetland with_special characteristics C5 Wetlands in Coastal Lagoons (seep. 91) Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? ❑The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks,gravel banks,shingle,or,less frequently,rocks. ❑The lagoon in which the wetland is located contains surface water that is saline or brackish(>0.5 ppt)during most of the year in at least a portion of the lagoon (needs to be measured near the bottom.) ❑ YES=Go to SC 5.1 ® NO not a wetland in a coastal lagoon SC 5.1 Does the wetland meet all of the following three conditions? ❑ The wetland is relatively undisturbed(has no diking,ditching,filling,cultivation,grazing)and has less than 20%cover of invasive plant species(see list of invasive species on p. 74). ❑ At least 3/4 of the landward edge of the wetland has a 100 ft.buffer of shrub, forest,or un-grazed or Cat.I un-mowed grassland. ❑ ❑ The wetland is larger than 1/10 acre(4350 square ft.) Cat. II ❑YES=Category I ® NO =Category Il C6 Interdunal Wetlands(seep. 93) Is the wetland west of the 1889 line(also called the Western Boundary of Upland Ownership or WBUO)? ❑YES=Go to SC 6.1 ® NO not an interdunal wetland for rating If you answer yes you will still need to rate the wetland based on its junctions. In practical terms that means the following geographic areas: • Long Beach Peninsula-- lands west of SR 103 • Grayland-Westport-- lands west of SR 105 • Ocean Shores-Copalis—lands west of SR 115 and SR 109 SC 6.1 Is the wetland one acre or larger,or is it in a mosaic of wetlands that is one acre or larger? Cat.II ❑YES=Category 11 ®NO =go to SC 6.2 ❑ SC 6.2 Is the wetland between 0.1 and I acre,or is it in a mosaic of wetlands that is between 0.1 and 1 acre? Cat.III ❑YES=Category III Category of wetland based on Special Characteristics ♦ Choose the "highest"rating if wetland falls into several categories, and record on p. 1. If you answered NO for all types enter"Not Applicable"on p. I Comments: Wetland Rating Form—Western Washington,Version 2(7/06),updated with new WDFW definitions Oct 2008 Page 12 of 12