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Wetland Delineation 801033009
MEEHAN-ROULST WETLAND DELINEATING Kimberly Meehan-Roulst, Wetland Specialist 407 Embody Rd., Port Ludlow, WA 98365 Phone:360-732-0073, Cell: 360-774-0551 Specializing In: Wetland and Stream Mapping, Delineation and Restoration 5/28/15 CRITICAL AREA INVESTIGATION: WETLANDS PARCEL NUMBER: 801033009 S 3, T28N, R1 W (3.4 acres) Client: Daniel Asper Physical Address: 5521 West Valley Rd, Chimacum WA 98325 Findings: Undelineated Class IV Investigator: Kim Meehan-Roulst TABLE OF CONTENTS Page CONSULTING COMPANY 1 TYPE OF ENVIRONMENTALLY SENSITIVE AREA INVISTIGATION 1 LAND OWNER 1 APPLICANT 3 PROPOSED PROJECT 1 PARCEL NUMBER I SITE LOCATION 1 EXISTING CONDITIONS 3 INVESTIGATION RESULT OF AREAS "A, B AND C" 4-8 CONCLUSION 10 CRITICAL AREA BUFFER 9 APPROACH AND METHODS I1-15 APPENDICES APPENDIX A - VACINITY MAPS AND LOCATION OF WETLAND AREA, FIGURE 1 APPENDIX C — WESTERN WASHINGTON RATING SHEETS AND FIGURES 2-5 (MAPS) PROPOSED PROJECT: R FcFi oF� 0 40 �3 Rope nemeryt / Ned th I, Meehan-Roulst Wetland Consulting, was contacted by Daniel Asper and Suzan Martin, septic designer, to investigate for wetlands on parcel number 801033009. The parcel is located in Chimacum Valley east of West Valley Road. The landowner, Daniel Asper, is proposing to build a new single family residence and have an existing drain field repaired. Study was conducted October 1, 2015 -October 7, 2015. EXISTING CONDITIONS: Having current knowledge of this area between Center Valley Road and West Valley Road, there are several pocketed Class IV wetlands in and around this area. All are broken up due to development and are not a mosaic of wetlands. Three areas on this parcel were investigated. Area A (see Map in appendix A for location) is a small Swale. Area B is a depression of slough sedge next to a man made pond. Area C is a Class IV wetland. See map in appendix A for exact locations of all three. The landowner, Daniel Asper, has requested to not have a full wetland delineation. Under JCC 18.22.330(2) (moderate impacts) it was investigated to see if the building pad and new drain field would be out of a Class IV wetland boundary, forty feet with the addition of twenty feet. Totaling sixty feet from the wetland boundary. As this report will show, all proposed projects are outside of the required distance and property does not need a full wetland delineation. As per JCC 18.22.330(2), "Note: Wetlands shall be classified using the 2004 Washington State Department of Ecology's Wetland Raing System for Western Washington (Ecology Publication No. 04-06-025), the 2014 Washington State Department of Ecology's Update (Publication No. 14-06-019), or as amended", the wetland was still rated and the rating sheets can be found in Appendix B. 3 'r oF�cF/,lid. R��✓ewe 40 onc'01, 32p�s INVESTIGATION RESULTS OF AREAS "A. B. AND C" e t lllx hed/fh 'Although the landowner requested to not have a full wetland delineation conducted, no flagging of wetland boundary, soils, vegetation and hydrology must still be investigated and results are below. AREA A: Area A is located in the north west corner of the parcel (lo the left of the drive way coming into parcel). The area looks like a small swale that has a slope of 8-10%. Vegetation: The area is vegetated with Agrostis (FACW), Reed Canary Grass (FACW) and lawn grasses. Soils: The area is mapped as Alderwood gravelly sandy loams which are moderately well drained soils. This area was a Alderwood variant: 0-4" 10YR212 sandy loam, weak granular structure, many medium roots. 4-12" t0YR2/3 gravelly sandy loam, weak granular structure, some fine roots. 12-16" 10YR2/3 gravelly loamy sands, compact at 16"'s. Hvdroloav: None Upland Plot: Please refer to upland data soils under Area C. Upland soils for Area A and B were very similar to Area C which all did not meat the definition of hydric soils. El Conclusion:o rso �1S Although the area met the definition of hydric vegetation, it did not meet the definition 'ed h hydric soils and hydrology. This area has a large slope and water most likely drains out during high rain events onto the parcel north of this one. Wetlands on the parcel north can be seen from West Valley Road. Measurements were taken from that property line to show that if there was wetlands on the parcel to the north, the proposed projects Conclusion Continued: would still be cleared of its buffers. The new proposed reserve area was 150' away and same as with the proposed building pad. See map in Appendix A for measurements. AREA B: Area B is located next to a man made pond towards the North East property line. See map in Appendix A for location. Vegetation: The area is 100% dominated by slough sedge (OBL). Soils: Soils were 10YR2/1 in the upper eight inches with mottling. Soils were not heavily investigated due to slough sedge being present. Slough sedge can only exist in saturated soils (greater then 90% of the time). Hydrology: Not present during site visit. Ponding is unlikely to occur being next to a man made pond. There is a small ditch landscaped with rock that drains the area. Given that slough sedge is growing, hydrology is present at some time of the year. It is most likely saturated soils. Man made ponds have a tendency to lower the water table when they are next to wetlands, `4�c � UFCU Fj�� P��,o erso ?1p Q Conclusion: '�P�teC The depression next to the pond is dominated with slough sedge and is only about forty ed h feet long by twenty feet wide (approximately 800 square feet). It moves into uplands towards the North East property corner marker and drains into the man made pond towards the West. Due to its small size and lack of ponding, it would not support habitat for amphibians and is less then a 1/10 of an acre (4,356 square feet). This area meets the definition of JCC 18.22.300. Conclusion Continued: 18.22.300 Classification/designation. SHARE (1) Classification. Wetlands shall be classified using the 2004 Washington State Department of Ecology's Wetland Rating System for Western Washington (Ecology Publication No. 04-06-025), or as amended. Welland rating categories shall not be determined based upon illegal modification of the land. Wetland delineations shall be determined by using the Washington State Wetlands identification and Delineation Manual, March 1997, or as amended hereafter. (2) Designation. As determined using the 1997 Washington State Department of Ecology's Washington State Wetlands Identification and Delineation Manual (Ecology Publication No. 96-94 or as amended), wetlands shall be designated as critical areas and regulated under this article regardless of size; provided, that Category IV wetlands less than one-tenth acre (4,356 square feet) shall be exempt from the requirements of this article when all of the following criteria are met: (a) The wetland does not provide breeding habitat for native amphibian species. Breeding habitat is indicated by adequate and stable seasonal inundation, presence of thin -stemmed emergent vegetation, and clean water; (b) The wetland does not have unique characteristics that would be difficult to replace through standard compensatory mitigation practices; (c) The wetland is not located within a fish and wildlife habitat conservation area (FWHCA) as defined in the section of this chapter dealing with FWHCAs, and is not integral to the maintenance of habitat functions of an FWHCA; (d) The wetland is not located within a Floodplain, (e) The wetland is not associated with a shoreline of the state as defined by the county's shoreline master program; In the event it was a regulated Class IV wetland, measurements were made from the boundary out of the slough sedge to the proposed projects. From the proposed building pad to the boundary, the building pad was 155' away. The drain field repair was 135' feet from the boundary. This is over the 60' buffer for a un delineated regulated Class IV wetland. See map in Appendix A for measurements. AREA C: REGULATED CLASS IV WETLAND Area C is towards the south east corner of parcel. Vegetation: The vegetation is a thicket of Hooker's Willow (FACW), some Hardhack (FACW) with upland species such as Indian Plum and Snowberry. It is a Shrub/Scrub wetland. It is very densely covered. Wetland plants with a FAC indicator status or wetter dominated the area. Wetland species was seventy percent and upland species coverage was thirty percent. It thereby met the definition of hydric vegetation. Soils: Wet Plot Wet variant of the Alderwood series. 0-8" t0YR2/2 silt loams, medium sub angular blocky structure. Many large roots and some common roots. 8-11" 10YR2/2 gravelly sandy loams, weak sub angular blocky structure, some common roots. 7.5YR3/4 redoximorphic features covering 20% of profile. 7 Soils: Up Plot: Alderwood variant 0-4" 10YR3/2 sandy loams, weak angular blocky structure, many common roots. 4-12" 10YR313 gravelly sandy loams, weak sub angular blocky structure. 30% medium gravel. Vegetation: Wet Plot Area was a shrub/scrub wetland dominated by hooker's willow (FACW). Other shrubs included hard hack (FACW), snow berry (FACU) and indian plum (FACU). The area was 70% wetland vegetation and upland vegetation was 30%. Vegetation: Up Plot The wetlands uplands is dominated with western sword fern (FACU) and douglas fur (FACU). *Location of plots can be found on the map in Appendix A. Conclusion: This area is a Class IV wetland dominated by hooker's willow. Judging from how low the mottles were in the profile, it is most likely saturated only and an elevated water table is its water source. The edge of the wetland is pretty distinct. It quickly moves from hooker's willow into western sword fern and douglas fir. As mentioned earlier, the property owner requested to not have a full wetland delineation conducted. Under Jefferson County Codes it states: E J 0• Pn�.o�eso �Z�/S Q n ne co n� Pd�rh Table 18.22.330(2) WETLAND CATEGORIES, RATING SCORES AND BUFFER WIDTHS FOR MODERATE IMPACT LAND USES Moderate impact land uses shall include the following: • Single-family residential use on parcels of one acre or larger; • Private roads or driveways serving three or more residential parcels; Paved trails; Passive recreation areas; Utility corridors (private or public) with a maintenance road; Class IV -General forest conversions, including conversion option harvest plans. +An Additional Buffer Width with an Wetland Characteristics: Distance from an Identified Wetland Weiland Category • Habitat (H) Apparent Welland Boundary • Water Quality (WQ) Boundary (Delineated) (Not Delineated) ry (Total of scores less than 15 40 feet +20 feet (Total of scores for all points] functions is less than 15 points) Conclusion Cont: OSO S 7 c P7td/� 7� P`�rh For a Class IV un delineated wetland boundary, 20 feet must be added to it giving it a 60 feet wetland buffer. This must be met in order to avoid a full wetland delineation. I took measurements from the wetland boundary to the proposed building pad. Originally, it was two feet to close to meet the 60' buffer required for an un delineated wetland. The owner was informed that the proposed building pad must be moved back two feet in order to meet Jefferson Counties Codes to avoid a delineation and agreed to move back the proposed building pad. See map in Appendix A for the location of the new proposed building pad site. Because this is an un delineated wetland, JCC does not require soil pit data to be reported on the Wetland Field Data forms. The Western Washington Rating Sheets, 2014, are required and can be found in Appendix B. No delineation whips will be found either. I did mark out the sample plots with orange wired whips to help the biologist reviewing these findings in the field. In the future, I, Meehan-Roulst Wetland Delineating, will provide all the data on the field data sheets to make it easier for the county reviewer. Please feel free to contact myself, Meehan-Roulst Wetland Delineating if there are further questions. I can also be contacted to go out in the field with the county reviewer too to show quickly the locations of the areas investigated. I am very familiar with this area and live just down the road and would be happy to help the counties wetland biologist reviewing it. Sincerely, Kim Meehan-Roulst Meehan-Roulst Wetland Delineating 10 �Fc �npy oz's o'ZOJS o n�enr 1 y ntJ- Pa7rh APPROACH AND METHODS CRITICAL AREA DETERMINATION. DELINEATION & CLASSIFICATION: WETLAND DELINEATION BASED ON: STATE OF WASHINGTON DEPARTMENT OF ECOLOGY, Washington State Wetlands identification and Delineation Manual, Ecology Publication No. 96- 94, adopted under WAC 173-22-08, March 1997and its applicable regional supplements. Manual was updated in 2010. Wetland Determination Two levels of information were gathered to do a routine wetland determination. These included: a) Review of preliminary site data and, b) On-site investigation to determine the presence of wetlands and non wetland waters. a) A review of existing information was conducted to develop background knowledge of physical features, and to identify the potential for wetland occurrence on the subject property. The resource documents available for preliminary review of the site conditions included: USDA Soil Conservation Service (SCS), "Soil Survey of Jefferson County Area Washington", 2013 and 1994, Jefferson County aerial photography, and Jefferson County Planning Department data. b) During the on-site investigation, wetland areas were determined and verified on the basis of three Darameters: Hydrophytic Vegetation, Hydric Soils, and Wetland Hydrology, as recommended in the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys and Coast Region (Version 2.0), May 2010. Hydric soils are classified using Filed Indicators of Hydric Soils in the United States, Version 7.0, 2010. Aosp itiye wetland determination is made when all three parameters are present, or in certain situations determined following the guidelines recommended in wetland determination procedures, or for atypical situations or problem areas. c) The wetland was classified as to type (category) by using the Washington State wetland rating system for western Washington -October -2014. Effective January 2015, 11 Forms Efon Stateanuary 1, ent of 20]5 Ecology's Publication No. 03-06-029 and applicable Rating �e td�y�� Pd�th Hvdroohvtic Vegetation Areas where more than 50% of the dominant species present from all strata are hydrophytes (plants adapted to growth and reproduction in saturated soil conditions) are considered to be inside the wetland boundary, unless clear evidence of hydric soils or wetland hydrology cannot be established. A species is considered dominant if it is equal to or greater than 20% areal cover, or exerts a controlling influence on, or defines the character of a community. Hydrophytic vegetation is determined to be present, when under normal circumstances: More than 50% of the dominant plant species in a plant community have an indicator category of ObligatC Wetland (OBL), Facultative Wetland (FACW), and/or Facultative (FAC) as listed in "National List of Plant Species that Occur in Wetlands: Northwest (Region 9)", (Reed, Porter B., Jr., 1988), and the "1993 Supplement to National List of Plant Species That Occur in Wetlands: Northwest (Region 9)" dated December 1993 that became effective on March 31, 1994. This Plant Indicator Status Categories system was developed for the USFWS National Wetlands Inventory by Cowardin at al. (1979). The National Plant List Panel, Reed, Porter B., and Jr. modified it in 1988 and 1993. The Wetland Indicator Category (WIC) used in this report refers to the plants Indicator Symbol as referred to in the table below. There have been changes to the list since 1993. In 2012 the list was updated and was used for this report. Purpose and Approach Continued 12 rF °FCc`c��o� /S' National Indicators reflect the range of estimated probabilities (expressed �tol 1) as a frequency of occurrence) of a species occurring in a wetland versus a non- ea�rh wetland across the entire distribution of the species. ("National List of Plant Species that Occur in Wetlands: Northwest (Region 9)", Reed, Porter B., Jr., 2012), Supplement to List of Plant Species That Occur in Wetlands: Northwest (Region 9) Percentages expressed as estimated probability. OBLIGATE WETLAND (estimated PLANTS natural FACULTATIVE WETLAND 67-99% and PLANTS FACULTATIVE PLANTS FAC and FACULTATIVE UPLAND FACU 99%, PLANTS 1-33%. OBLIGATE UPLAND non -wetlands of Plants Hydric Soils OBL Occur almost always, >99% probability) in wetlands under conditions. <I% in non wetlands. FAC W Usually occur in wetlands, 1-33% in non -wetlands. Equally likely to occur in wetlands non -wetlands 34-66%. Usually occur in non wetlands 67 - but occasionally found in wetlands UPI, Almost always occur in Northwest Region 9, >99%. Q% in wetlands. There have been tremendous scientific changes since 1991 in several of the indicators such as the introduction of aquic conditions to cover the requirements for saturation, reduction, and morphological indicators used to define the modified aquic moisture regime, and mottles and low chroma colors being replaced by redoximorphic features. Because of these changes, we consult the US Department of Agriculture, Natural Resource Conservation Service. 2007. Field Indicators of Hydric Soils in the United States, Version 7.0". G. W. Hurt, L. M. Vasilas . (eds.), USDA, NRCS, in cooeation with the National Technical Committee for Hydric Soils guidance and decision in making final hydric soils determinations. 13 Field indicators of hydric sod conditions in this document, (Land Resource Region (LRR) A Mob O (., includes Western Washington), are presented here: �Pd�y �� (1) ALL SOILS: Pd�th Al. Histowls; A2. Histic Epipedoos; A4. Hydrogen sulfide; A6. Organic Bodies; A7. Mucky mineral; A8. Muck Presence; A10.2 cm Muck; All. Depleted Below Dark Surface; and Al2. Thick Dark Surface (2) SANDY SOILS: Sl. Sandy Mucky Mineral; S4. Sandy Gleyed Matrix; SS.Saady Redox; and S6. Stripped Matrix (3) LOAMY AND CLAYEY SOILS: Fl. Loamy Mucky Mineral; F2. Loamy Gleyed Matrix; F3. Depleted Matrix; F6. Redox Dark Surface; F7.Depleted Dark Surface; and F8. Redox Depressions; Wetland Hydrology Water is the driving force for wetlands. Indications of wetland hydrology are those where the presence of water has an overriding influence on characteristics of vegetation and soils due to anaerobic and reducing conditions, respectively. Areas that are seasonally saturated and/or inundated to the surface for a consecutive number of days for more than 12.5% of the growing season are wetlands provided the soil and vegetation parameters are met. Areas wet between 5% and 12% of the growing season in most years may or may not be wetlands. Areas saturated to the surface for less than 5% of the growing season are non -wetlands. Wetland hydrology exists if field indicators are present. Field indicators of wetland hydrology may include, but are not limited to visual observations of inundation, ponding, soil saturation, oxidized root channels (rhizospheres) associated with living roots and rhizomes, watermarks, drift lines, water -borne sediment deposition, or wetland drainage patterns. The growing season starting and ending dates are required to evaluate hydrologic data. For wetland determinations, the growing season is determined using the local SCS county soils surveys. 14 40�e� CO Generally, the growing season is calculated based on the "28 degrees F or lower" temperature/,y �tJ, threshold at a frequency of "5 years in 10". For much of western Washington at low elevations, the mesic growing season (March 1 to October 31) has been considered a good rule. However, in some areas of the Puget Sound Lowlands and coastal areas the growing season occurs all year round because the soil temperature at 19.7 inches below the soil surface is higher than 41 degrees F. Plant Identification and Classification Primary references used for scientific plant names and the endemic and non-native or exotic status of plants to the North Olympic Peninsula were determined as found in Flom of the Pacific Northwest by Hitchcock and Cronquist, Univ. of Washington Press, 1972. Other references referred to included: (1) A Field Guide to the Common Wetland Plants of Western Washington & Northwestern Oregon by Sarah Spear Cooke, editor, Washington Native Plant Society, May 1997; Wetland plants of Oregon & Washington by Jennifer Guard, Lone Pine Publishing, 1995; (2) Plants of the Pacific Northwest Coast- Washington, Oregon, British Columbia & Alaska edited by Pojar and Mackinnon, D.C. Forest Service, Research Program, Lone Pine Publishing, 1994 and, D.C. Forest Service, Research Program, Lone Pine Publishing, 1994; and (3) Northwest Weeds by Ronald J. Taylor, Mountain Press Publishing Company, 1990 15 APPENDIX VACINITY MAP AND LOCATION OF INVESTIGATED AREAS tac Pa AND THERE LOCATIONS (FIG 1) 1 ft p Page 1 of 1 QT Yu'ancc-, O Ift Rd } 2 U2FS: a�Y A,nY, y0••r: ir1 tl0'ri_'-iVN &': OaIWY Ply "Nx. J,' -CA �, •rall_b Iery 0 3 ?015 �nV /'e�ma f / Hnty ea/rh http://maps.co.jefferson.wa.us/output/parcels_gisse"er10424103961774.jpg 11/2/2015 SL'M4CW ✓ i1.13 X2 - Jylwu '::3'r rW r gvn3YgJ W" 1f f.: Vi K' r_'O]N.Ur _ _ _ _ _y_t W YC']4,Y Eagkrleanl Rd n �: aysal aP° .wY "oz K ; •,.,1i,•s x� •Ov=I a+•'W;�a N Sa,dY 51-e Rd•,A,.,�.1; G'f iviln, Pti': •�9n'J ti iWl:'. w",NfL.S 2 U2FS: a�Y A,nY, y0••r: ir1 tl0'ri_'-iVN &': OaIWY Ply "Nx. J,' -CA �, •rall_b Iery 0 3 ?015 �nV /'e�ma f / Hnty ea/rh http://maps.co.jefferson.wa.us/output/parcels_gisse"er10424103961774.jpg 11/2/2015 APPENDIX B WESTERN WASHINGTON RATING SHEETS AND REQUIRED EST RNREQUIRED FIGURES GHEETS SP'rd/ya h Wetland name or number RATING SUMMARY —Western �FFc` � 0- F��. ofFP sa �1p/S Q n�e�t0/a`0�), (� 1 Washington "tPd7s Name of wetland (or IDN): 4Q0.frp k "'Ir5(0�[�"'�ib0 Date of site visit: �* l li j Rated bygained by Ecology?_ YesNo Date of training f fA DIA15 HGM Class used or raYin Wetland has multiple HGM classes? 'Y �N SStoNa�l NOTE: Form is not complete without Ituu�rles hal reque ed gyres can be c bined). r Source of base aerial photo/map Swe �cc©a A P,,f. OVERALL WETLAND CATEGORY (based on functions�r special characteristics_) 1. Category of wetland based on FUNCTIONS Category I — Total score = 23 - 27 Category II — Total score = 20 - 22 Category III —Total score = 16 - 19 Category IV —Total score = 9 - 15 FUNCTION Improving Water Quality Hydrologic Habitat Wetland of High Conservation Value _ circle tit appropriate ratings Bog Site Potential H '�M L H M I L 1 H '.. M. L I Landscape Potential H M L H M L M L None of the above Value H M L I H M L H M L TOTAL score Based on Ratings J 2. Category based on SPECIAL CHARACTERISTICS of wetland CHARACTERISTIC CATEGORY Estuarine I I[ Wetland of High Conservation Value 1 Bog I Mature Forest t Old Growth Forest I coastal Lagoon I It IMerdunal I II III IV None of the above Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Score for each function based on three ratings (order of ratings is not important) 9 = H,H,H 8=H,H,M 7=H,H,L 7 = H,M,M 6 = H,M,L 6 = M,M,M 5 = H,L,L 5 = M,M,L 4 = M,L,L 3 = L,L,L Wetland name or number Maps and figures required to answer questions correctly'E@�o Western Washington td y'tj Deoressional Wetlands Pd�th : To answer questions: FI ure# in plant clasiofTMDts D 1.3, H 1.1, H 1.4 eriods D 1.4, H 1.2 n of outlet (ded to map o h droperiods) D 1. 1, D 4.1 ry of area wit of the wetland (can be added to another figure) scapture D 2.2, D 5.2 the contribuin D 4.3, D 5.3 lygon: Areands 1 km from entire wetland edge- including ns for accesstat and undisturbed habitat H 2.1, H 2.2, H 2.3 f the contributing basin capture of m3(d) listed waters in basin (from Ecology website) D 3.1, D 3.2 capture of liLs for WRIA in which unit is found (from web) I D 3.3 Riverine Wetlands : To answer questions: Figure# in plant classes H 1.1, H 1.4 eriods H 1.2 depressions R 1.1 ary of area within 150 It of the wetland(can be added to anotherfigure) R2.4 over of trees, shrubs, and herbaceous plants mcapture R 1.2, R 4.2 of unit vs. width of stream (can be added to another figure) R 4.1 f the contributing basin R 2.2, R 2.3, R 5.2 olygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 capture of map of 303(d) listed waters in basin (from Ecology website) H 2.1, H 2.2, H 2.3 Screen capture of list of TMDL5 for WRIA in which unit is found (from web) R 3.2, R 3.3 Lake Fringe Wetlands To answer questions: F ure# plant classes L 1.1, L 4.1, H 1.1, H 1.4 ant classes er of trees, shrubs, and herbaceous plants L 1.2 of area within 150 ft of the wetland (can be added to another i ure) L 2.2 H 1.2 ygon: Area that extends 1 km from entire wetland edge- Including H 2.1, H 2.2, H 2.3 for accessible habitat and undisturbed habitat K f dense trees, shrubs, and herbaceous plants apture of map of 303(d) listed waters in basin (from Ecology website) L 3.1, L3.2 apture of list of TMDLs for WRIA in which unit is found (from web) L3.3 S4.1 Slope Wetlands Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 To answer uestions: Figure# ant classes H 1.1, H 1.4 s H 1.2 f dense trees, shrubs, and herbaceous plants S1.3 of dense, rigid trees, shrubs, and herbaceous plants d to figure above) Imoflist S4.1 150 ft buffer(can be added to anotherggure) 52.1,55.1 n: Area that extends 1 km from entire wetland edge - including r accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 ure of map of 303(d) listed waters in basin (from Ecolo website) S3.1,S3.2 ure of list ofTMDLs for WRIA in which unit is found (from web) S3.3 Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetland name or number HGM Classification of Wetlands in Western Wash%4pn 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. a salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? O Saltwater Tidal Fringe (Estuarine) YES - Freshwater Tidal Fringe 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 your wetland can be classified as a Flats wetland, use the form for Depressional wetlands. 3. Does the entire wetland unit meet all of the following criteria? The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; _At least 30% of the open water area is deeper than 6.6 ft (2 m). 10 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). S. 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. Wetiand Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wedand name or number go to 6 YES - The wetland class is Riven'k t. E: The Riverine unit can contain depressions that are filled with water when the river^sa' i�ayo� qty flooding Poi 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during the year? This means that any outlet if present, is higher than the interior of the wetland. f- 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 The wetland class is Depressional B. 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 9O% of the total area. HGM classes within the wetland unit being rated HGM class to use in rating Slope + Riverine Riverine Slope+ Depressional Depressional Slope+Lake Fringe [iDepressional+ Lake Fringe Riverine along stream within boundary of depression Depressional Depressional+Lake Fringe Depressional Riverine + Lake Fringe Riverine Salt Water Tidal Fringe and any other class of freshwater wetland Treat as ESTUARINE 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 Rating Form - Effective January 1, 2015 Wetland name or number Rating of Sfte Potential If score Is:_12-16 = H '_6-11= M 0.5 = L Recortl the rating on the first page D SA. Does the landscape have the potential to support hydrologic functions of the site? DEPRESSIONAL AND FLATS WETLANDS e� co Hydrologic Functions - Indicators that the site functions to reduce flooding and stream degrad�3i'i t, 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: D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human land uses (residential at >3 residence/ac, urban, commercial, agriculture, etc.)? Yes = 1 No = Wetland is a depression or flat depression with no surface water leaving it (no outlet) Lorants=4 Total for D 5 1 Add the points in the bones above Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outletp nts�= 2 • Flooding occurs in a sub -basin that is immediately down -gradient of unit. points =2 Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch points - I I Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing points -0 Flooding from groundwater is an Issue in the sub -basin. points = 1 D 4.2. Depth of storage during wet periods: Estimate the height of ponding above the bottom of the outlet. For wetlands The existing or potential outflow from the wetland is so constrained byn or nat ral conditions that thG, water stored by the wetland cannot reach areas that flood. Explain why C ora® with no outlet, measurefrom the surface of permanent water or if dry, the deepest part. There are no problems with flooding downstream of the wetland. ' points =0 Marks of ponding are 3 It or more above the surface or bottom of outlet \ '\�(- points =7 D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control 1 7 Marks of ponding between 2ftto<3 ft from surface or bottom of ouu�,\ points =5 Yes -2 No=O Marks are atleast 0.5 ftto< 2ftfrom surface or bottom of outlet points =3 Total for D 6 Add the points in the boxes above The wetland is a "headwater" wetland ,1 points = 3 Wetland is flat but has small depressions on the surface that trap water > t:"° I Marks of pandin less than 0.5 ft (6 in) ° D 4.3. Contribution of the wetland to storage in the watershed: Estimate the ratio of the area of upstreamcontributing surface water to the wetland to the area of the wetland unit itself.The %basin area of the basin is less than 30 times the area of the unit 5The area of the basin is 10 to 100 times the area of the unit 3The area of the basin is more than 100 times the area of the unit Entire wetland is in the Flats class 5Total for D 4 Add the points in the be Rating of Sfte Potential If score Is:_12-16 = H '_6-11= M 0.5 = L Recortl the rating on the first page D SA. 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 = D 5.2. Is >10% of the area within 150 ft of the wetland in land uses that generate excess runoff? Yes= D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human land uses (residential at >3 residence/ac, urban, commercial, agriculture, etc.)? Yes = 1 No = Total for D 5 1 Add the points in the bones above Rating of Landscape Potential If score is -.---3 = H _I or 2 = M L/ 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 la ndscglie that has flooding problems. Choose the description that best matches conditions around the wetland unit being rated. Do not add points. Choose the hiahest 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 byn or nat ral conditions that thG, water stored by the wetland cannot reach areas that flood. Explain why C ora® 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 1 7 Yes -2 No=O Total for D 6 Add the points in the boxes above Rating of Value If score is:_2-4= H _3 = M J40 = L Record the rating on the first page Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetland name or number J J �PLr PFF �pa These questions apply to wetlands of all HGM classes. P C' HABITAT FUNRIONS -Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the Forested class. Check the ' Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold of 9 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 mergent 3 structures: points = 2 Scrub -shrub (areas where shrubs have > 30% cover) 2 structures: points = 1 _Forested (areas where trees have > 30% cover) 1 structure: points = 0 If the unit has a Forested class, check if: _The Forested class has 3 out of 5 strata (canopy, sub -canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon H 1.2. Hydroperiods Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or Is ac to count (see text for descriptions of hydroperiods). _Permanently flooded or inundated 4 or more types present: points = 3 _Seasonally flooded or inundated 3 types present: points = 2 Occasionally flooded or inundated 2 types present: points - � 1 type Saturated only present: point _Permanently flowing stream or river in, or adjacent to, the wetland _Seasonally flowing stream in, or adjacent to, the wetland _lake Fringe wetland ',,. �- - e •' 2 points _Freshwater tidal wetland ,Y , 2 points - H 1.3. Richness of plant species Count the number of plant species in the wetland that cover at least 10 W. Different patches of the some species can be combined to meet the size threshold and you do not have to name the species. Do not Include Eurasian milfail, reed canorygrass, purple loosestrife, Canadian thistle If you counted:> 19 species aj)t''.r. points =2 5-19'Pedes ---1, 'OQ.ttvt)�,-.• Points=l <5 species Dints=0 H 1.4. Interspersion of habitats Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, low, or none. If you have four or more plant classes or three classes and open water, the rating is always high. O O None =0 points w=1 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 H 1.5. Special habitat features: Fj JP Check the habitat features that are present in the wetland. The number of checks is the number of points. o N T _Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long). 07 �� Standing snags (dbh> 4 in) within the wetland C` oG Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) — os yo over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m) B —Stable steep banks of fine material that might be used by beaver or muskrat for damning (> 30 degree OA slope) OR signs of recent beaver activity are present (cutshrubs or trees that have not yet weathered <10%of I km Polygon\ points =0 where wood is exposed) H 2.2. Undisturbed habitat in I km Polygon around the wetland. At least %ac of thin -stemmed persistent plants or woody branches are present in areas that are Calculate: %undisturbed habitat_+J(%mo erate and low intensity land uses)/2]_=% ermanently or seasonally inundated (structures for egg -laying by amphibians) Undisturbed habitat> 50% of Polygon points = 3 vasive plants cover less than 25% of the wetland area in every stratum of plants (see H 1.1 for list of Undisturbed habitat 10-50% and in 1-3 patches points =.2 strata) Undisturbed habitat 10-50%and > 3 patches Cpoints = Total for H 1 Add the points in the boxes above Undisturbed habitat < 10% of I km Polygon points = 0 Rating of Site Potential If score is:_35-38 = H V7-14 = M _p-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). . '� Calculate: %undisturbed habltat]�+(I%moderate and low intensity land uses)/2]_= % If total accessible habitat is: lk _ >'/s (33.3%) of 1 km Polygon 'a _ points = 3 20-33% of 1 km Polygon pN points = 2 10-19% of I km Polygon '_\i ,r � -+points =1 _ <10%of I km Polygon\ points =0 H 2.2. Undisturbed habitat in I km Polygon around the wetland. Calculate: %undisturbed habitat_+J(%mo erate and low intensity land uses)/2]_=% 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 Cpoints = Undisturbed habitat < 10% of I km Polygon points = 0 H 2.3. Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points= (- 2) <- 50% of 1 km Polygon is high intensity Nktints = b Total for H 2 Add the points in the boxes above Rating of Landscape Potential If score is:%Z4-6 = H _3-3 = M _< 1= L Record the rating on the first page H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highestscore 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 tints=9 Rating of Value If score is:_2=H _3=M VO=L Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Re ro ng on the first page 14 Wetland name or number WDFW Priority Habitats P Priority h bitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in which they ty be found, in: Washington Department of Fish and Wildlife.2008. Priority Habitat and Species List Olympia Washington. d/t4 177 pp. hup'it dfw g21➢ bl'cations/00165/wdfw00165.udf or access the list from here: blip I/ w d&,I / C / hs/fst/) Count how many of the following priority habitats are within 330 it (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 Meas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (full descriptions in WDFW PHS report). — Herbaceous Raids: Variable size patches of grass and (orbs 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°/x; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth; 80-200 years old west of the Cascade crest. — Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 -see web link above). — Riparian: The area adjacent to aquatic systems with Rowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. — Westside Prairies: Herbaceous, non -forested plant communities that can either take the form of a dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161 -see web link above). — Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. — Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. (full descriptions of habitats and the definition of relatively undisturbed are in WDFW report - see web link on previous page). — Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth in soils, rock, ice, or other geological formations and is large enough to contain a human. Cliffs: Greater than 25 ft (7.6 m) high and occurring below 5000 it elevation Tal : Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0.15 - 2.0 m), composed of basalt, andesite, a /or sedimentary rock, including ripmp 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 k (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. Weiland Rating System for Western WA: 2014 Update 15 Rating Form - Effective January 1, 2015 Wetland name or number A COo Please determine wetland meets the attributes described below and circle the 01h�a appropriate answers and Category. Wetland Type Category Check off any criteria that apply to the wetland. Circle the Category when the appropriate criteria are met. SC 1.0 Estuarine wetlands (seep. 86) Does the wetland unit meet the following criteria for Estuarine wetlands? — The dominant water regime is tidal, — Vegetated, and — With a salinity greater than 0.5 ppt. ' YES= Go to SC 1.1 NO SC 1.1 Is the wetland unit within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park or Educational, Cat. I Environmental, or Scientific Reserve designate under WAC 332-30-151? YES = Category I kq o to SC 1.2 SC 1.2 Is the wetland unit at least I acre in size and mcW at least two of the following three conditions? YES = Category I O – Category II Cat. I — The wetland is relatively undisturbed (has no diking, ditching, filling, Cat. II cultivation, grazing, and has less than 100% cover of non-native plant species. If the non-native Spartina spp. are the only species that cover more than 10% of the wetland, then the wetland should be given a dual Dual rating (1/II). The area of Spartina would be rated a Category II while the rating relatively undisturbed upper marsh with native species would be a IRI Category 1. Do not, however, exclude the area of Spartina in determining the size threshold of 1 acre. — 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 2 of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. Wetland Rating Form— western Washington Is August 2004 version 2 Updated with new WDFW definitions Oct. 2008 Waders! name or number SC 2.0 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 unit being rated in a Section/Township/Range that contains a Natural Heritage wetland? (this question is used to screen out most sites before you need to contact WNHP/DNR) S/F/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 VL— SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as or as a site with state threatened or endangered plant species9 YES = Category I NO V not a Heritage Wetland SC 3.0 Bogs (seep. 87) Does the Wetland unit (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below to idents if the wetland is a bog. If you answer yes you will still need to rate the wetland based on its functions. 1. Does the unit have organic soil horizons (i.e. layers of organic soil), either peats or mucks, that compose 16 inches or more of the first 32 inches of the soil profile? (See Appendix B �ft'a field key to identify organic soils)? Yes - go to Q. 3 tNo - go to Q. 2 2. Does the unit have organic soil`s; either pears 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 lak _ or pond? Yes - go to Q. 3 Nods 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 `°% go to Q. 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. 1. Is the unit forested (> 30% cover) with sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Englemann's spruce, or western white pine, WITH any of the species (or combination of species) on the bog species plant list in Table 3 as a significant component of the ground cover (> 30% coverage of the total shrublherbaceous cover)? 2. YES= Category I C04— Is not a bog for purpose of rating Cat. I Wetland Rating Form— western Washington 19 August 2004 version 2 Updated with new WDFW definitions Oct. 2008 Wetland name or number o,y e/72'.&e,� ZS/5 Wetland Rating Form— western Washington 20 August 2004 version 2 Updated with new WDFW definitions Oct. 2008 SC 4.0 Forested Wetlands (seep. 90) entdtNn Does the wetland unit have at least I acre of forest that meet one of these criteria for e the Department of Fish and Wildlife's forests as priority habitats? Ifyou answer yes you will still need to rate the wetland based on its functions. — Old-growth forests: (west of Cascade crest) Stands of at least two tree species, forming a multi -layered canopy with occasional small openings; with at least 8 trees/acre (20 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 average diameters (dbh) exceeding 21 inches (53cm); crown cover may be less that 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth. YES= Category 1 6--. ot a forested wetland with special characteristics Cat. I SC 5.0 Wetlands in Coastal Lagoons (seep. 91) Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? — The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks — The lagoon in which the wetland is located contains surface water that is saline or brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be mea near the bottom) YES = Go to SC 5.1 O not a wetland in a coastal lagoon SC 5.1 Does the wetland meets all of the following three conditions? — The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less than 20% cover of invasive plant species (see list of invasive species on p. 74). — At least'/. of the landward edge of the wetland has a 100 It buffer of shrub, forest, or un -grazed or un -mowed grassland. Cat. I — The wetland is larger than 1/10(4350 square feet) YES = Category I NO Category 11 Cat. II Wetland Rating Form— western Washington 20 August 2004 version 2 Updated with new WDFW definitions Oct. 2008 Welland name or number SC 6.0 Interdunal Wetlands (seep. 93) ° 4�P' Is the wetland unit west of the 1889 line (also called the Western Boundary of Upland aCy O Ownership or c 'dt YES go to SC 6.1 NO not an interdunal wetland for rating - go to S If you answer yes you will stil to rate the wetland based on its functions. In practical tenns 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 once acre or larger? YES = Category II �O -, go to SC 6.2 Cat. II SC 6.2 Is the unit between 0.1 and I acre, or is it in a mosaic of wetlands that is between 0.1 and I acre? 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