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Home My WebLink AboutWetland Delineation Report - PLN General - 12/30/2010 THE WETLAND CORPS - Wetland Delineation • Habitat Management Plans • Riparian Restoration • Mitigation • Biological Evaluation Parcel 223315000063 Wetland Delineation Report Collins Lake#1 TR 63 Tahuya,Wa Mason County Prepared for: Steven Dameron c/o Rock Harbor Construction PO Box 8118 Lacey, Wa 98509 Prepared by: Lee Boad and Heather Lane December,2010 RECEI'�1'ED FEB 0 8 2011 MASON COUNTY, PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•wetlandcorps@hotmail.com AV THE WETLAND CORPS - Wetland Delineation - Habitat Management Plans • Riparian Restoration - Mitigation - Biological Evaluation PARCEL 223315000063 WETLAND DELINEATION REPORT TABLE OF CONTENTS INTRODUCTION......................................................................................................................... 1 GENERALSITE CONDITIONS................................................................................................ 1 METHODOLOGY.......................................................................................................................2 BACKGROUND INFORMATION ............................................................................................ 3 WETLAND DELINEATION RESULTS................................................................................... 3 WETLANDEVALUATION............................................................................................................................6 WETLAND CONCLUSION........................................................................................................ 6 REFERENCES.............................................................................................................................. 8 Figures Figure 1. Site Vicinity Map Figure 2. Wetland Boundary Map Figure 3. National Wetland Inventory Map Figure 4. Mason County Soil Survey Map Figure 5. Department of Natural Resources Water Resource Map Appendices Appendix A. Routine Wetland Determination Data Forms Appendix B. Soil Survey Text Appendix C. Washington State Wetland Rating System Form PO Box 2854 Belfair, Washington 98528-Cell Phone 360-620-0618.Office Phone 360-372-2421-wetlandcorps@hotmail.com THE WETLAND CORPS Wetland Delineation - Habitat Management Plans • Riparian Restoration • Mitigation • Biological Evaluation December, 2010 Project# TWCIOW76 Page 1 of 8 Parcel 223315000063 Wetland Delineation Report Collins Lake#1 TR 63 Tahuya,Wa INTRODUCTION The Wetland Corps has been authorized by Steven R. Dameron, c/o Rock Harbor Construction, to perform a wetland delineation at the above referenced property located in Tahuya, Mason County, Washington, (Tax Identification Number 223315000063). This delineation was performed to identify wetlands and associated buffers that would be applicable to future development of the parcel. The delineation was completed on December 6, 2010. The property is located in Section 31, Township 23 North, Range 02 West, off of Creek View Place within the Collins Lake Subdivision (Figure 1 Vicinity Map). The entire ownership is approximately one acre in size. For the purposes of federal, Washington State, and Mason County jurisdictional oversight, methodology used for the wetland delineation is consistent with the wetland definition provided in paragraph 25a of the Washington State Wetlands Identification and Delineation Manual (Washington State Department of Ecology, 1997). The sections below provide: (1) an introduction to the site; (2) a description of methods used in the field delineation; and, (3)technical results. GENERAL SITE CONDITIONS The parcel is bordered to the east by Creek View Place. Residential parcels of similar size border the ownership to the north, south and west. Topography within the property consists generally of moderate slopes towards a depressional wetland located in the south central portion of the property. An existing road grade runs generally along the northern property line. The property is well forested with partially cleared areas to the adjacent west of the wetland. The wetland is characterized by a dense vegetative community of spirea and slough sedge with willow and alder along the fringe. The upland portion of the property consists primarily of a Douglas fir overstory with an understory of salal, evergreen huckleberry and scattered patches of himilayan blackberry. PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421-wetlandcorps@hotmail.com Parcel 223315000063 Wetland Delineation Report TWC 10-W76 December,2010 Page 2 of 8 METHODOLOGY Review of Existing Information Consistent with procedures detailed in the Washington State Wetlands Identification and Delineation Manual (Washington State Department of Ecology, 1997) (1997 Manual), preliminary information was gathered on the project site prior to the field review and delineation. General information sources included: United States Geological Service (USGS) topographic maps, 1974 United States Fish and Wildlife Service (USFWS) National Wetland Inventory (NWI) maps, the Soil Survey of Mason County Area, Washington (USDA, 1951), and Mason County's critical areas regulations. Field Delineation Methodology used for wetland delineation was consistent with the technical approaches articulated in the 1997 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. The extent and location of suspect wetlands were determined during field work performed on December 6th, 2010. Field work was conducted under cloudy skies with an ambient temperature ranging between 45 and 50 degrees Fahrenheit. The time of year and recent precipitation history were considered in assessing the extent of the suspect wetland presumed to exist on site. Specific field methodology used in determining the extent and location of wetland areas include: 1. As part of the initial project site reconnaissance, the site was walked to determine the general extent and location of wetland areas; 2. Wetland and upland sample plots were established in the identified potential wetland areas and in the adjacent upland area; and 3. Wetland boundaries were determined 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 three sample plot locations. Data collected at each sample plot were entered onto a Routine Wetland Determination Data Form (Washington State Department of Ecology 1997). Copies of data forms for each sample plot are provided in Appendix A. PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•wetlandcorps@hotmail.com Parcel 223315000063 Wetland Delineation Report TWC 10-W76 December,2010 Page 3 of 8 BACKGROUND INFORMATION Mason County Soil Survey The soil survey of Mason County indicates two onsite soil types, (USDA, 1951): The onsite soil type occupying the western portion of the property has been identified as: Ab- Alderwood gravelly sandy loam, 5 to 15 percent slopes. The Alderwood series consists of brown, well-drained, upland soils. They have developed from mixed gravelly glacial till dominated by acid igneous rock. The imbedded gravel is mainly granite and quartzite. Rainfall is 45 to 60 inches a year. The native vegetation is a dense forest consisting almost entirely of Douglas-fir and a dense understory of salal, Oregon-grape, vine maple, and huckleberry. Northeast of the Hood Canal the understory is mainly rhododendron. Alderwood soils occupy the extensive rolling glacial moraines, and they are the dominant soils in the eastern part of the county. The Alderwood soils are associated with the somewhat excessively drained Everett and Indianola soils and with the moderately well drained Kitsap soils. Shelton and Hoodsport soils differ from the Alderwood soils in that they have developed under high rainfall and from glacial till having a much higher content of basic igneous rock. The Alderwood gravelly sandy loam, 5 to 15 percent slopes (Ab) is the most extensive, soil of the Alderwood series. It occupies undulating to rolling moraines. A more detailed soil description can be found in Appendix B Mason Soil Survey Text. The Mason Soil Survey map is shown in Figure 4. National Wetlands Inventory The USFWS NWI map (online wetlands mapper) shows Collins Lake as being the only wetland mapped in the vicinity of the parcel. (Figure 3. National Wetland Inventory Map). No other mapped wetlands are located within the parcel vicinity. Department of Natural Resources Water Resource Map The Department of Natural Resources Water Resource Map shows the nearest stream channel located east of the property on the opposite side of Creekview Place. The nearest mapped as a type f stream located approximately 700 feet east of the property (See Figure 5. WA DNR Water Resources Map). The on-site wetland has no connection or association with the stream. WETLAND DELINEATION RESULTS The identified wetland is a deppresional system that extends south off the property. The wetland is hydrologically connected to a second wetland directly to the south via a seasonal surface water connection. Collectively the entire wetland unit occupies approximately 1/2 of an acre. It is hydrologically supported by a fluctuating water table, and receives additional runoff from surrounding topography. There area no defined PO Box 2854 Belfair, Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421-wetlandcorps@hotmail.com Parcel 223315000063 Wetland Delineation Report TWC 10-W76 December,2010 Page 4 of 8 surface water connections to other regulated waters from this wetland unit. The wetland boundary is distinct as indicated by an abrupt transition from upland vegetation to wetland vegetation which is also synchronous with general landscape patterns. Photo 1. On Site Wetland PO Box 2854 Belfair,Washington 98528-Cell Phone 360-620-0618.Office Phone 360-372-2421-wetIandcorps@hotmail.com Parcel 223315000063 Wetland Delineation Report TWC10-W76 December,2010 Page 5 of 8 a r e R yr Photo 2. Distinct Wetland Boundary Vegetation Wetland C is dominated almost entirely by spirea(Spiraea douglasii,FACW),with lesser amounts of red alder (Alnus rubra, FAQ and western red cedar (Thuja plicata, FAQ, lady fern(Athyrium filix femina, FAQ and slough sedge(Carex obnupta, OBL). The overstory upland vegetation adjacent to the wetland is comprised almost entirely of Douglas fir (Pseudotsuga menziesii, FACU). The understory species consist of Oregon grape (Mahonia nervosa, UPL), evergreen blackberry (Rubus lacianatus, FACU), himilayan blackberry (Rubes discolor, FACU), evergreen huckleberry (Vaccinium ovatum), and salal (Gaultheria shallon, FACU). Soils The soil profile within the wetland contains a surface layer of muck 10YR 3/1 to a depth of 12 inches. The fringe of the wetland is a dark, faintly mottled, sandy loam 10YR2/1 to a depth of 14 inches underlain by cemented till. Hydric soil is indicated by low chroma soils equaling one. The soil profiles observed in known upland test pits were consistent with the mapped soil type, Alderwood sandy loam. Upland test pits exhibited a two-layer soil profile. The upper layer consists of gravelly sandy loam approximately five to eight inches deep of PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•wetlandcorps@hotmail.com Parcel 223315000063 Wetland Delineation Report TWC10-W76 December,2010 Page 6 of 8 matrix chroma 10YR 3/3 and 3/4. The lower profile contained less gravel with a matrix chroma of 10 YR 4/3 and 10YR 4/4. No hydric soil indicators were present in upland soil test pits. Hydrology Hydrology was indicated by the presence of FAC-neutral vegetation, drainage patterns, drift lines, oxidized root channels, water marks on trees, and water-stained leaves. In addition, the test pits revealed soil saturation during the growing season, standing water in the test pits, and inundation up to 3-feet in some areas. Upland test pits showed no indicators of wetland hydrology. WETLAND EVALUATION As the wetland area on the property is hydrologically connected to a second wetland area to the south and the water connecting them does not flow in either direction, they have been rated as one unit as required by the Washington State Wetland Rating System for Western Washington (Hruby 2004). It is located within a low lying depression with no defined surface water outlet. Therefore, the wetland meets criteria for a Depressional wetland for the purposes of rating. Based on functional attributes associated with the wetland including habitat, water quality, and hydrology functions, it has been rated as a Category 11 wetland, scoring 59 points on the state rating form. According to Table 17.01.070 F of the Mason County Resource Ordinance, the base buffer width for Category II Wetlands scoring 11 points in habitat function (Low), within parcels intended for Moderate Impact Land Use require a base buffer width of 90 feet with an additional 15-foot building setback. Moderate Impact Land Use is described in Table 17.07.070 B of the Mason County Resource Ordinance as single-family residential lots or residential subdivisions with 1 unit/acre or less. SUMMARY This report discusses the presence of a Category 11 Wetland with low habitat function located within the property. According to Tables 17.01.070 F and 17.01.070 E of the Mason County Resource Ordinance, the wetland requires a buffer of 90-feet with an additional 15-foot building setback in Mason County for moderate impact development. See Figure 2. Site Map for the approximate wetlands and associated buffer location within the property. Thank you for choosing The Wetland Corps as your environmental consultant. If you have any questions, feel free to call. PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•wetlandcorps@hotmail.com Parcel 223315000063 Wetland Delineation Report TWC10-W76 December,2010 Page 7 of 8 Respectfully submitted, The Wetland Corps QL� Bather 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 Parcel 223315000063 Wetland Delineation Report TWC10-W76 December,2010 Page 8 of 8 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 Haven L ke - : 4wf + Shoe Lake = C IT Erdman LakeVAN of ti Approximate Parcel _ 2��. _`' _ �p Location Collins Lake 9~ c 4 - 2 _ J .4 �NE TRAIL LN Grass Lake_ G +.¢ Maggie La�keJ- � Dry Pond FIGURE 1 VICINITY MAP Project Name: Parcel 223315000063 Wetland Delineation Location: Tahuya,Washington Project: TWC10-W76 THE WETLAND CORPS Client: Steven Dameron Date: 12/10 This site map was created by TWC by coordinating measurements and information from several sources, including the Mason County Assessor Aerial Photo 2005 and N 'I I I GoogleEarth aerial images and measurements. All locations are approximate. / Parcel 223315000063 1 I 1 1 I 1 1 .......................................................�1 1 90' 4*115' Category II Wetland 90' buffer+ 15' building setback Creek View lace 0 100' FIGURE 2. SITE MAP Project Name: Parcel 223315000063 Wetland Delineation Location: Tahuya, Washington THE IATTL_-'I N D CORPS Project:Steven DTWCIO mer Client: Steven Dameron Date: 12/10 Map Legend U.S. Fish and Wildlife Service Print Hap Streets • COrrus crlina National Wetlands Invento EJ CONUS saes 1OOK w i lower iB Welland Polygons Prevkrus Extent Next Extent Ful Extent Tov4s estuarine and Marine Oeopwale, Eatumine and Marine Wetland freshwater Emergont Welland Freshwater Forested!Shrub Wetland Freshwater Pond Approximate `dke Parcel Location other Rive,ine ir F4J BH i w N :. .0. r1 . Pl JBH Figure adapted from NWI Figure 3 National Wetland Inventory Map Mapper website Section 31 Township 23 North Range 2 West FIGURE 3 NWI MAP Project Name: Parcel 223315000063 Wetland Delineation Location: Tahuya,Washington Project: TWC10-W76 ClienTHE WETLAND CORPS Date: en Dameron te: 12/10 00,• f �,r'1<'S,'�!•. _ Approximate Nam. +t''-� t t Parcel Location a . I t Ir a Onsite Soil Conditions based on Mason County Soil Survey Subject Site Soils: Ab -Alderwood gravelly sandy loam, 5 to 15 percent slopes. The Alderwood series consists of brown, well-drained, upland soils. They have developed from mixed gravelly glacial till dominated by acid igneous rock. The imbedded gravel is mainly granite and quartzite. Rainfall is 45 to 60 inches a year. The native vegetation is a dense forest consisting almost entirely of Douglas-fir and a dense understory of salal, Oregon-grape, vine maple, and huckleberry. Northeast of the Hood Canal the understory is mainly rhododendron. Alderwood soils occupy the extensive rolling glacial moraines, and they are the dominant soils in the eastern part of the county. The Alderwood gravelly sandy loam, 5 to 15 percent slopes (Ab) is the most extensive, soil of the Alderwood series. It occupies undulating to rolling moraines. FIGURE 4 SOIL SURVEY Project Name: Parcel 223315000063 Wetland Delineation AAW Location: Tahuya,Washington Project: TWC10-W76 THE WETLNND CORD'S Client: Steven Dameron Date: 12/10 Note: Hydric soils not present in project vicinity. 170$204 170820 1708 F 'e- + �yF Erdman Lake + t iF 1707282,0 +707284 1707286 1707281, 707288 +707380 i r 6Approximate FT �a.�A F Collins Lake F � parcel location � 17 262 11 1707264 11'77077,2136 17 .268 1707300 fi Sons Hydnc Soils STREA2MSHig_hlyUnstable TR.-kNS,1'0RT-T1ON Stream Water Type 1-5(East side) Highly Erodible /^e Paged Road 3_ghh•U c & ^' Unpaved Road Stream Type L:ykuot�v(East side) :i:_htt•Eroodhblible e �N�► Stream Water Type :-5(West side) _� No Data or Gravel Pits ,�Road Surface Unl:noivn) f v �� ll Stream Type Unknown(West side) -i"-*Abmidoned Road Orphaned Road Trail FIGURE 5 DNR STREAM MAP Project Name: Parcel 223315000063 Wetland Delineation Location: Tahuya,Washington Project: TWC10-W76 Client: Steven Dameron TH L V`'LTL--� N D CORP-*-,- Date: 12/10 Note: One stream mapped east of project vicinity. APPENDIX A Routine Wetland Determination Data Forms Routine Wetland Determination DATA FORM 1 (Revised) WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual Project/Site: Parcel 223315000063 Wetland Delineation Date: 12/10/10 Applicant/owner: Gedora Asset Mngt. County: Mason Investigator(s): H. Lane State: WA S/T/R: 31 T23N R02W Do normal circumstances exist on the site? Yes Community ID: forested/shrub Is the site significantly disturbed (atypical situation)? No Transect ID: 1 Is the area a potential problem area? No Plot ID: Upland Explanation of atypical or problem area: VEGETATION (For*strata, indicate T =tree; S = shrub; H = herb; V = vine) Dominant Plant Species *Stratum % cover Indicator Dominant Plant Species *Stratum % cover Indicator Psuedotsuga menziesii T FACU Rubus discolor S FACU Gaultheria shallon T FACU Polystichum munitum S FACU Vaccinium ovatum S FACU Mahonia nervosa S UPL Pteridium aquilinum S FACU HYDROPHYTIC VEGETATION INDICATORS: % of dominants OBL, FACW, & FAC: < 50% Check all indicators that apply and explain below: ❑ Visual observation of plant species growing in ❑ Physiological/reproductive adaptations areas of prolonged inundation/saturation X Wetland plant database ❑ Morphological adaptations X Personal knowledge of regional plant communities X Technical Literature ❑ Other(explain) Hydrophytic vegetation present? No Rationale for decision/Remarks: < 50% of dominants OBL, FACW, & FAC HYDROLOGY Is it the growing season? No Water Marks: No Sediment Deposits: No Based on: December Drift Lines: No Drainage Patterns: No Depth of inundation: No inundation Oxidized Root (live roots) Local Soil Survey: No Channels <12in.: Depth to free water in pit: > 16 FAC Neutral: No Water-stained Leaves: No Depth to saturated soil: > 16 Check all that apply & explain below: Other(explain): ❑ Stream, lake or gage data X Aerial photographs ❑ Other Wetland hydrology present? No Rationale for decision/remarks: No indicators present SOILS Map Unit Name: Gh-Grove gravelly sandy loam Drainage Class: somewhat excessively drained Field observations confirm mapped type?Yes Profile Description Depth Matrix color Mottle colors Mottle abundance Texture, concretions, Drawing of soil profile inches Munsell moist Munsell moist size and contrast structure,etc. (match description) 0-8 10YR 3/3 Gravelly sandy loam 8 16 10YR 63 Y/ Sand loam Hydric Soil Indicators: (check all that apply) ❑ Histosol ❑ Matrix chroma<_2 with mottles ❑ Histic Epipedon ❑ Mg or Fe Concretions ❑ Sulfidic Odor ❑ High Organic Content in Surface Layer of Sandy Soils ❑Aquic Moisture Regime ❑ Organic Streaking in Sandy Soils ❑ Reducing Conditions ❑Listed on National/Local Hydric Soils List ❑ Gleyed or Low-Chroma(=1)matrix ❑ Other(explain in remarks Hydric soils present? No Rationale for decision/Remarks: No indicators present. Wetland Determination Hydrophytic vegetation present? No Hydric soils present? No Wetland hydrology present? No Is the sampling point within a wetland? No Rationale/Remarks: Positive wetland indicators not present for all three wetland parameters. NOTES: Revised 4/97 Routine Wetland Determination DATA FORM 1 (Revised) WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual Project/Site: Parcel 223315000063 Wetland Delineation Date: 12/10/2010 Applicant/owner: Steven Dameron County: Mason Investigator(s): H. Lane State: WA S/T/R: 07 T20N R03W Do normal circumstances exist on the site? Yes Community ID: scrub/shrub Is the site significantly disturbed (atypical situation)? No Transect ID: 1 Is the area a potential problem area? No Plot ID: Wetland Explanation of atypical or problem area: VEGETATION (For*strata, indicate T= tree; S = shrub; H = herb; V= vine) Dominant Plant Species *Stratum % cover Indicator Dominant Plant Species *Stratum % cover Indicator Spiraea douglasii S FACW+ Carex obnupta H OBL HYDROPHYTIC VEGETATION INDICATORS: % of dominants OBL, FACW, & FAC: > 50% Check all indicators that apply and explain below: ❑ Visual observation of plant species growing in ❑ Physiological/reproductive adaptations areas of prolonged inundation/saturation X Wetland plant database ❑ Morphological adaptations X Personal knowledge of regional plant communities X Technical Literature ❑ Other(explain) Hydrophytic vegetation present? Yes Rationale for decision/Remarks: > 50% of dominants OBL & FACW HYDROLOGY Is it the growing season? No Water Marks: Yes Sediment Deposits: Yes Based on: December Drift Lines: Yes Drainage Patterns: Yes Depth of inundation: 4" Oxidized Root (live roots) Local Soil Survey: No Channels <12in.: Yes Depth to free water in pit: 0 inches FAC Neutral: Yes Water-stained Leaves: Yes Depth to saturated soil: 0 inches Check all that apply & explain below: Other(explain): ❑ Stream, lake or gage data X Aerial photographs ❑ Other Wetland hydrology present? yes Rationale for decision/remarks: Primary and secondary indicators present. SOILS Map Unit Name: Ab-Alderwood gravelly sandy loam Drainage Class: well drained Field observations confirm mapped type? No Profile Description Depth Matrix color Mottle colors Mottle abundance Texture, concretions, Drawing of soil profile inches Munsell moist Munsell moist size and contrast structure, etc. (match description) 0-12 10YR 3/1 Silt loam Hydric Soil Indicators: (check all that apply) ❑ Histosol ❑ Matrix chroma <_2 with mottles ❑ Histic Epipedon ❑ Mg or Fe Concretions ❑ Sulfidic Odor ❑ High Organic Content in Surface Layer of Sandy Soils ❑ Aquic Moisture Regime ❑ Organic Streaking in Sandy Soils ❑ Reducing Conditions ❑ Listed on National/Local Hydric Soils List X Gleyed or Low-Chroma (=1) matrix ❑ Other(explain in remarks Hydric soils present?Yes Rationale for decision/Remarks: Low-chroma= 1, Wetland Determination Hydrophytic vegetation present?Yes Hydric soils present? Yes Wetland hydrology present?Yes Is the sampling point within a wetland?Yes Rationale/Remarks: Positive wetland indicators present for all three wetland parameters. NOTES: Revised 4/97 Routine Wetland Determination DATA FORM 1 (Revised) WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual Project/Site: Parcel 223315000063 Wetland Delineation Date: 12/10/10 Applicant/owner: Steven Demeron County: Mason Investigator(s): H. Lane State: WA S/T/R: 31 T23N R02W Do normal circumstances exist on the site? Yes Community ID: forested/shrub Is the site significantly disturbed (atypical situation)? No Transect ID: 2 Is the area a potential problem area? No Plot ID: Upland Explanation of atypical or problem area: VEGETATION (For*strata, indicate T =tree; S = shrub; H = herb; V= vine) Dominant Plant Species 'Stratum % cover Indicator Dominant Plant Species *Stratum % cover Indicator Psuedotsuga menziesii T FACU Rubus discolor S FACU Gaultheria shallon T FACU Polystichum munitum S FACU Vaccinium ovatum S FACU Mahonia nervosa S UPL Pteridium aquilinum S FACU HYDROPHYTIC VEGETATION INDICATORS: % of dominants OBL, FACW, & FAC: < 50% Check all indicators that apply and explain below: ❑ Visual observation of plant species growing in ❑ Physiological/reproductive adaptations areas of prolonged inundation/saturation X Wetland plant database ❑ Morphological adaptations X Personal knowledge of regional plant communities X Technical Literature ❑ Other(explain) Hydrophytic vegetation present? No Rationale for decision/Remarks: < 50% of dominants OBL, FACW, & FAC HYDROLOGY Is it the growing season? No Water Marks: No Sediment Deposits: No Based on: December Drift Lines: No Drainage Patterns: No Depth of inundation: No inundation Oxidized Root (live roots) Local Soil Survey: No Channels <12in.: Depth to free water in pit: > 16 FAC Neutral: No Water-stained Leaves: No Depth to saturated soil: > 16 Check all that apply & explain below: Other(explain): ❑ Stream, lake or gage data X Aerial photographs ❑ Other Wetland hydrology present? No Rationale for decision/remarks: No indicators present SOILS Map Unit Name: Gh-Grove gravelly sandy loam Drainage Class: somewhat excessively drained Field observations confirm mapped type? Yes Profile Descri tion Depth Matrix color Mottle colors Mottle abundance Texture, concretions, Drawing of soil profile inches Munsell moist (Munsell moist) size and contrast structure, etc. (match description) 0-8 10YR 3/3 Gravelly sandy loam 8-16 10YR 6/3 Sandy loam Hydric Soil Indicators: (check all that apply) ❑ Histosol ❑ Matrix chroma<_2 with mottles ❑ Histic Epipedon ❑ Mg or Fe Concretions ❑ Sulfidic Odor ❑ High Organic Content in Surface Layer of Sandy Soils ❑Aquic Moisture Regime ❑ Organic Streaking in Sandy Soils ❑ Reducing Conditions ❑Listed on National/Local Hydric Soils List ❑ Gleyed or Low-Chroma (=1)matrix ❑ Other(explain in remarks Hydric soils present? No Rationale for decision/Remarks: No indicators present. Wetland Determination Hydrophytic vegetation present? No Hydric soils present? No Wetland hydrology present? No Is the sampling point within a wetland? No Rationale/Remarks: Positive wetland indicators not present for all three wetland parameters. NOTES: Revised 4197 r Routine Wetland Determination DATA FORM 1 (Revised) WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual Project/Site: Parcel 223315000063 Wetland Delineation Date: 12/10/2010 Applicant/owner: Steven Dameron County: Mason Investigator(s): H. Lane State: WA S/T/R: 07 T20N R03W Do normal circumstances exist on the site? Yes Community ID: scrub/shrub Is the site significantly disturbed (atypical situation)? No Transect ID: 2 Is the area a potential problem area? No Plot ID: Wetland Explanation of atypical or problem area: VEGETATION (For*strata, indicate T = tree; S = shrub; H = herb; V= vine) Dominant Plant Species *Stratum % cover Indicator Dominant Plant Species *Stratum % cover Indicator Spiraea douglash S FACW+ Carex obnupta H OBL HYDROPHYTIC VEGETATION INDICATORS: % of dominants OBL, FACW, & FAC: > 50% Check all indicators that apply and explain below: ❑ Visual observation of plant species growing in ❑ Physiological/reproductive adaptations areas of prolonged inundation/saturation X Wetland plant database ❑ Morphological adaptations X Personal knowledge of regional plant communities X Technical Literature ❑ Other(explain) Hydrophytic vegetation present? Yes Rationale for decision/Remarks: > 50% of dominants OBL & FACW HYDROLOGY Is it the growing season? No Water Marks: Yes Sediment Deposits: Yes Based on: December Drift Lines: Yes Drainage Patterns: Yes Depth of inundation: 4" Oxidized Root (live roots) Local Soil Survey: No Channels <12in.: Yes Depth to free water in pit: 0 inches FAC Neutral: Yes Water-stained Leaves: Yes Depth to saturated soil: 0 inches Check all that apply & explain below: Other(explain): ❑ Stream, lake or gage data X Aerial photographs ❑ Other Wetland hydrology present? yes Rationale for decision/remarks: Primary and secondary indicators present. SOILS Map Unit Name: Ab-Alderwood gravelly sandy loam Drainage Class: well drained Field observations confirm mapped type? No Profile Description Depth Matrix color Mottle colors Mottle abundance Texture, concretions, Drawing of soil profile inches Munsell moist Munsell moist size and contrast structure, etc. (match description) 0-12 10YR 3/1 Silt loam Hydric Soil Indicators: (check all that apply) ❑ Histosol ❑ Matrix chroma<_2 with mottles ❑ Histic Epipedon ❑ Mg or Fe Concretions ❑ Sulfidic Odor ❑ High Organic Content in Surface Layer of Sandy Soils ❑ Aquic Moisture Regime ❑ Organic Streaking in Sandy Soils ❑ Reducing Conditions ❑ Listed on National/Local Hydric Soils List X Gleyed or Low-Chroma (=1) matrix ❑ Other(explain in remarks Hydric soils present?Yes Rationale for decision/Remarks: Low-chroma= 1, Wetland Determination I Hydrophytic vegetation present?Yes Hydric soils present? Yes Wetland hydrology present?Yes i Is the sampling point within a wetland?Yes Rationale/Remarks: Positive wetland indicators present for all three wetland parameters. NOTES: Revised 4/97 APPENDIX B Soil Survey Text ALDERWOOD SERIES The Alderwood series consists of brown, well-drained, upland soils. They have developed from mixed gravelly glacial till dominated by acid igneous rock. The imbedded gravel is mainly granite and quartzite. Rainfall is 45 to 60 inches a year. The native vegetation is a dense forest consisting almost entirely of Douglas-fir and a dense understory of salal, Oregon-grape, vine maple, and huckleberry. Northeast of the Hood Canal the understory is mainly rhododendron. Alderwood soils occupy the extensive rolling glacial moraines, and they are the dominant soils in the eastern part of the county. The Alderwood soils are associated with the somewhat excessively drained Everett and Indianola soils and with the moderately well drained Kitsap soils. Shelton and Hoodsport soils differ from the Alderwood soils in that they have developed under high rainfall and from glacial till having a much higher content of basic igneous rock. The Shelton and Hoodsport soils are more reddish throughout the profile. The Shelton soils are usually deeper to the cemented till than the Alderwood soils. Alderwood gravelly sandy loam, 5 to 15 percent slopes (Ab).-This is the most extensive, soil of the Alderwood series. It occupies undulating to rolling moraines. In undisturbed areas a 1- to 2-inch mat of very dark brown, acid organic matter is on the surface. This grades to a thin, dark grayish-brown, highly organic mineral soil. The surface soil consists of a friable, brown, medium acid gravelly sandy loam 8 to 13 inches deep. It has a weak granular structure and contains numerous rounded shot. Below the surface soil, to depths ranging from 18 to 24 inches, is a pale-brown gravelly sandy loam that is very friable, is single grained; and contains small to moderate amounts of shot . Between this layer and the cemented till is a 3- to 10-inch layer of very pale brown gravelly sandy loam. It contains no shot and is firmer but has the same texture as the layer above. However, it is faintly to distinctly spotted and horizontally streaked with brown and yellow. The cemented till consists of light-gray, gravelly sandy loam, and it normally occurs at depths ranging from 24 to 32 inches. It is impermeable to roots and very slowly permeable to water. The first few inches is usually laminated and streaked with reddish brown and yellow. Below this, to a depth of many feet, the till is uniformly cemented, fairly uniform light gray, and medium to strongly acid. A thin mat of roots often lies over the till. The cemented substratum tends to restrict the rapid downward movement of moisture. Use and suitability.-Not more than about 5 percent of this soil has been cleared and is used for crops or pasture. Most of the cultivated acreage is near the inlets of Puget Sound in the vicinities of Arcadia and Allyn. In this area the Alderwood soils are associated with the better agricultural soils of the Cloquallum, Sinclair and Kitsap series. Hay, small grains,pasture, fruits, nuts, grapes, and berries are the principal crops grown on the Alderwood soils. The lack of subsoil moisture damages crops in summer. For this reason, early maturing, short-season crops are suited best to this soil. Yields of all crops are usually fairly low because of low fertility and the dry summers. Pastures produce good forage in spring and late in fall if proper plants are used and management is good. The deeper soils are suited best to fruits, nuts, and grapes. The uncleared and remote areas are better suited to forestry than to cultivated crops. Nearly all the uncleared acreage is in second-growth forest 70 to 80 years of age. Shallowness to the compact till often inhibits growth of the older trees. The soil, however, is well suited to production of Christmas trees. Douglas-fir readily restocks in thick stands containing trees of good form. Stands of small trees are often thinned and pruned to maintain good form of growth. The growing of Christmas trees has expanded rapidly in the past few years and is now one of the important industries in the county. It is one of the proper uses of the cutover lands that are not in a high site class. Alder-wood soils need barnyard manure, green manure, nitrogen, or legumes to maintain a fertility for crop production. Phosphate fertilizers and green manure or barnyard manure greatly improve fertility. Nitrogen fertilizer is often applied with barnyard manure or when cover crops are plowed under. The fertilizer furnishes additional nitrogen needed to hasten decay of the organic matter. This soil is in capability subclass VIs and in site classes 4 and 5 for Douglas-fir. Small areas along- the border, where the soil is more than 32inches deep to compact till, are in site classes 3 and 4 for Douglas-fir. Appendix C Washington State Wetland Rating System Form WETLAND RATING FORM-WESTERN WASHINGTON Name of wetland(if known): Wetland PARCEL 223315000063 Wetland Delineation Location: SEC: 31 TWNSHP:23N_ RNGE:2W (attach map with outline of wetland to rating form) Person(s)Rating Wetland: H. Lane Affiliation: TWC Date of site visit: 12/10/10 SUMMARY OF RATING Category based on FUNCTIONS provided by wetland I II X III IV Category I= Score>70 Score for Water Quality Functions 24 Category 11= Score 51 -69 Score for Hydrologic Functions 24 Category III= Score 30-50 Score for Habitat Functions 11 Category IV= Score<30 TOTAL Score for Functions 59 Category based on SPECIAL CHARACTERISTCS of Wetland 1 11 Does not apply Final Category (choose the"highest" category from above") II Check the appropriate type and class of wetland being rated. Wetland Type Wetland Class Estuarine De ressional X Natural Heritage Wetland Riverine Bog Lake-fringe Mature Forest -Slope Old Growth Forest Flats Coastal Lagoon Freshwater Tidal Interdunal None of the above X 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. Check List for Wetlands that Need Special Protection, YES NO and That are Not Included in the Rating SP 1. Has the wetland been documented as a habitat for any Federally listed Threatened or Endangered plant or animal species (TIE species)? X For the purposes of this rating system, "documented"means the wetland is on the appropriate state or federal database. SP2. Has the wetland been documented as habitat for any State listed Threatened or Endangered plant or animal species? For the purposes of this rating system,"documented"means the X wetland is on the appropriate state database. SP3. Does the wetland contain individuals ofPriority species listed by the WDFW or the state? X SP4. Does the wetland 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 X in a local management plan as having special significance. To complete the next part of the data sheet you will need to determine the Hydro¢eomorphic Class of the wetland beingrated. ated. The hydrogeomorphic classification groups wetlands in to those that function in similar ways. This simplifies the questions needed to answer how well the wetland functions. The Hydrogeomorphic Class of a wetland can be determined using the key below. See p. 24 for more detailed instructions on classifying wetlands. Wetland Rating Form-western Washington(11/04) Page 1 of 8 Classification of Vegetated Wetlands for Western Washington Wetland Name: Western Wetland PARCEL 223315000063 Wetland Delineation Date: 12/10/10 1. Are the water levels in the wetland usually controlled by tides(i.e. except during floods)? NO—go to 2 YES—the wetland class is Tidal Fringe If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt(parts per thousand)? YES—Freshwater Tidal Fringe NO—Saltwater Tidal Fringe(Estuarine) If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is a Saltwater Tidal Fringe it is rated as an Estuarine wetland. 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 consistency between editions,the term"Estuarine"wetland is kept. Please note,however,that the characteristics that define Category I and II estuarine wetlands have changed(see p._). 2. Is the topography within the wetland flat and precipitation is only source(>90%)of water to it. 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 wetland meet both of the following criteria? The vegetated part of the wetland is on the shores of a body of open water(without any vegetation on the surface)where at least 20 acres(8ha)are permanently inundated(ponded or flooded); 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 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. Is the wetland in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river? The flooding should occur at least once every two years,on the average, to answer"yes". The wetland can contain depressions that are filled with water when the river is not flooding. NO—go to 6 YES—The wetland class is Riverine depression in whi h wat r onds or is saturated to the surface at some time of the year. 6. Is the wetland in a topographic c e , ponds, Y 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 wetland located in a very flat area with no obvious depressional and no stream or river running through it and providing water. The wetland 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 seems to be difficult to classify. 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. Sometimes we find characteristics of several different hydrogeomorphic classes within one wetland boundary. Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in the second column represents 10%or more of the total area of the wetland being rated. If the area of the second class is less than 10%classify the wetland using the first class. HGM Classes Within a Delineated Wetland Boundary Class to Use in Rating Slope+Riverine Riverine Slope+Depressional Depressional Slope+Lake-fringe Lake-fringe Depressional+Riverine along stream within boundary Depressional Depressional+Lake-fringe Depressional Salt Water Tidal Fringe and any other class of 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(11/04) Page 2 of 8 I D Depressional and Flat Wetlands WATER QUALITY FUNCTIONS— Indicators that wetland functions to improve water quality. D 1 Does the wetland have the potential to improve water quality? (see p.38) D 1.1 Characteristics of surface water flows out of the wetland: • Wetland is a depression with no surface water outlet............................................................points= 3 • Wetland has an intermittently flowing,or highly constricted,outlet.....................................points=2 3 • Wetland has an unconstricted surface outlet.........................................................................points= 1 • Wetland is flat and has no obvious outlet and/or outlet is a ditch..........................................points= 1 D 1.2 The soil 2 inches below the surface is clay,organic,or smells anoxic(hydrogen sulfide or rotten eggs). 0 YES points=4 NO points=0 D 1.3 Characteristics of persistent vegetation(emergent,shrub,and/or forest class): • Wetland has persistent,ungrazed vegetation>=95%of area...............................................points=5 • Wetland has persistent,ungrazed vegetation>=%z of area...................................................points=3 5 • Wetland has persistent,ungrazed vegetation>= 1/10 of area...............................................points= 1 • Wetland has persistent,ungrazed ve etation< 1/10 of area..................................................points=0 D 1.4 Characteristics of seasonal ponding or inundation: This is the area of the wetland that is pon ed or at least 2 months, but dries out sometime during the year. Do not count the area that is ermanent y ponded. Estimate area as the average condition S out of 10 years. NOTE: See text for indicators of seasonal and permanent inundation. 4 • Area seasonally ponded is> 1/2 total area of wetland...........................................................points=4 • Area seasonally ponded is> 1/4 total area of wetland...........................................................points=2 • Area seasonally ponded is< 1/4 total area of wetland...........................................................points=0 Total for D 1 Add the points in the boxes above 12 D 2 Does the wetland have the opportunity to improve water quality? (seep. 44) 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 down gradient from the wetland? Note which of the following conditions provide the sources of pollutants. 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 Multiplier _ Wetland is fed by groundwater high in phosphorus or nitrogen _ Other 2 YES multiplier is 2 NO multiplier is 1 ♦ TOTAL—Water Qualit Functions Multiply the score from D1 by 132;then add score to table on p. 1 24 HYDROLOGIC FUNCTIONS—Indicators that wetland functions to reduce flooding and stream degradation. D 3 Does the wetland have the potential to reduce flooding and erosion?(see p.46) D 3.1 Characteristics of surface water flows out of the wetland: • Wetland has no surface water outlet.....................................................................................points=4 • Wetland has an intermittently flowing,or highly constricted,outlet.....................................points=2 4 • Wetland is flat and has no obvious outlet and/or outlet is a small ditch.................................points= 1 • Wetland has an unconstricted surface outlet.........................................................................points=0 D 3.2 Depth of storage during wet periods. Estimate the height of ponding above the bottom of the outlet. • Marks of ponding are 3 ft. or more above the surfacepoints=7 • The wetland is a"headwater wetland.. points=5 ........ ..... . • Marks of ponding between 2 ft.to<3 ft. from surface.........................................................points=5 3 • Marks are at least 0.5 ft.to<2 ft.from surface....................................................................points=3 • Wetland is flat but has small depressions on the surface that trap water................................points= 1 • Marks of ponding less than 0.5 ft.........................................................................................points=0 D 3.3 Contribution of wetland to storage in the watershed: Estimate the ratio of upstream basin contributing surface water to the wetland to the area of the wetland itself. • The area of the basin is less than 10 times the are of wetland ...............................................points=5 5 • The area of the basin is 10 to 100 times the area of the wetland............................................points=3 • The area of the basin is more than 100 times the area of the wetland....................................points=0 • Wetland is in the FLATS class basin=the wetland by definition ......................................points=5 Total for D 3 Add the points in the boxes above 12 D 4 Does the wetland have the opportunity to reduce flooding and erosion? (seep. 49) 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. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate, tide gate,flap valve,reservoir etc.OR you estimate that more than 90%of the water in the wetland is from groundwater. Note which of the following indicators of opportunity apply. Wetland is in a headwater of a river or stream that has flooding problems. X Wetland drains to a river or stream that has flooding problems _ Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or Multiplier stream that has flooding problems Other 2 YES multiplier is 2 NO multiplier is 1 ♦ TOTAL—Hydrologic Functions Multiply the score from D3 by 134;then add score to table on p. 1r-2-471 Wetland Rating Form—western Washington(11/04) Page 3 of 8 These questions apply to wetlands of all HGM classes. HABITAT FUNCTIONS—Indicators that wetland functions to provide important habitat. H 1 Does the wetland have the potential to provide habitat for many species? H 1.1 Vegetation structure (see P. 73): Check the types of vegetation classes present(as defined by Cowardin) if the class covers more than 10%of the area of the wetland or 114 acre. Aquatic Bed Emergent plants 1 X Scrub/shrub(areas where shrubs have>30%cover) X Forested(areas where trees have>30%cover) Forested areas have 3 out of 5 strata(canopy,sub-canopy,shrubs,herbaceous,moss/ground-cover) Add the number of vegetation types that qualify. If you have: 4 types or more...points=4 3 types..points=2 2 types................points= 1 1 type....points=0 H 1.2 Hydroperiods (see p.74): Check the types of water regimes(hydroperiods)present within the wetland. The water regime has to cover more than 10%of the wetland or 114 acre to count(see text for descriptions of hydroperiods). X Permanently flooded or inundated X Seasonally flooded or inundated 4 or more types present.....points=3 Occasionally flooded or inundated 3 types present..................points=2 1 _ Saturated only 2 types present..................points= 1 _ Permanently flowing stream or river in,or adjacent to,the wetland Seasonally flowing stream in,or adjacent to,the wetland Lake-fringe wetland.................=2 points Freshwater tidal wetland.........=2 points H 1.3 Richness of Plant Species(see p. 76): Count the number of plant species in the wetland that cover at least 10 ftZ (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass,purple loosestrife, Canadian Thistle. If you counted: > 19 species.......................points=2 5—19 species....................points= 1 0 List species below(optional): <5 species.........................points=0 H 1.4 Interspersion of Habitats (seep. 77): Decided from the diagrams below whether interspersion between types of vegetation(described in H1.1),or vegetation types and unvegetated areas(can include open water or mudflats)is high,medium, low,or none. O D (*) (:0 ) None=0 points Low= 1 point Moderate=2 Points .1< �«` 1 [riparian braided channels] High =3 points Note: If you have 4 or more vegetation types or 3 vegetation types and open water,the rating is always -high". H 1.5 Special Habitat Features (seep. 78): Check the habitat features that are present in the wetland. The number of checks is the number of points you put into the next column. X 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 2 3.3 ft. (lm)over a stream for at least 33 ft. (10m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (>30 degree slope)OR signs of recent beaver activity are present _ 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-laying by amphibians) X Invasive plants cover less than 25%of the wetland area in each stratum of plants H 1 TOTAL Score—potential for providing habitat Add the points in the column above 5 Wetland Rating Form—western Washington(1 1/04) Page 4 of 8 H 2 Does the wetland have the oauortunity to provide habitat for many species? H 2.1 Buffers (see P. 81): Choose the description that best represents condition of buffer of wetland. The highest scoring criterion that applies to the wetland is to be used in the rating. See text for definition of"undisturbed". 100m(330 ft)of relatively undisturbed vegetated areas,rocky areas,or open water >95%of circumference. No developed areas within undisturbed part of buffer (relatively undisturbed also means no grazing). ........................................................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 2 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 three criteria above: X 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=2 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 H 2.2 Corridors and Connections(seep. 82) 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 to H 2.3) NO=go to H 2.2.2 H.2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor(either riparian 1 or upland)that is at least 50 ft.wide,has at least 30%cover of shrubs or forest,and connects to estuaries,other wetlands or undisturbed uplands that are at least 25 acres in size? OR a lake- fringe wetland, if it does not have an undisturbed corridor as in the question above? YES=2 points(go to H 2.3) NO=go toH2.2.3 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 . Within 1 mile of a lake greater than 20 acres? NO=0 points Wetland Rating Form—western Washington(11/04) Page 5 of 8 H 2.3 Near or adjacent to other priority habitats listed by WDFW(see p. 83): Which of the following priority habitats are within 330 ft.(100m)of the wetland? (See text for a more detailed description of these priority habitats.) Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha(2 acres) Cliffs: Greater than 7.6m(25 ft)high and occurring below 5000 ft. Old-growth 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)>81cm (32 in)dbh or>200 years of age. Mature forests: Stands with average diameters exceeding 53cm(21 in)dbh;crown cover may be less than 100%;decay,decadence,numbers of snags,and quantity of large downed material is generally less than that found in old-growth;80—200 years old west of the Cascade Crest. _ Prairies: Relatively undisturbed areas(as indicated by dominance of native plants)where greases and/or forbs form the natural climax plant community. Talus: Homogenous areas of rock rubble ranging in average size 0.15—2.Om(0.5—6.5 ft), composed of basalt,andesite,and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. Caves: A naturally occurring cavity,recess,void,or system of interconnected passages. Oregon white Oak: Woodlands stands of pure oak or oak/conifer associations where canopy 0 coverage of the oak component of the stand is 25%. Urban Natural Open Space: A priority species resides within or is adjacent to the open space and uses it for breeding and/or regular feeding;and/or the open space functions as a corridor connecting other priority habitats,especially those that would otherwise be isolated;and/or the open space is an isolated remnant of natural habitat larger than 4 ha(10 acres)and is surrounded by urban development. Estuary/Estuary-like: Deepwater tidal habitats and adjacent tidal wetlands,usually semi-enclosed by land but with open,partly obstructed or sporadic access to the open ocean,and in which ocean water is at least occasionally diluted by freshwater runoff from the land. The salinity may be periodically increased above that of the open ocean by evaporation. Along some low-energy coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward to where ocean-derived salts measure less than 0.5 ppt.during the period of average annual low flow. Includes both estuaries and lagoons. Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches,and may also include the backshore and adjacent components of the terrestrial landscape(e.g.,cliffs, snags,mature trees,dunes,meadows)that are important to shoreline associated fish and wildlife and that contribute to shoreline function(e.g., sand/rock/log recruitment,nutrient contribution,erosion control). If wetland has 3 or more priority habitats.=4 points If wetland has 1 priority habit...= I point If wetland has 2 priority habitats..............=3 points No habitats...............................=0 points H 2.4 Wetland Landscape: Choose the one description of the landscape around the wetland that best fits (seep. 85) • 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 wetlands within 1/2 mile.....................................................................................................points=5 3 • 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 H 2 TOTAL Score—opportunity for providing habitat Add the scores in the columns above 3 ♦ Total Score for Habitat Functions Add the points for H 1 and H 2;then record the result on p. 1 11 Wetland Rating Form—western Washington(11/04) Page 6 of 8 CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Please determine if the wetland meets the attributes described below and circle the appropriate answers and Category. Wetland Type—Check off any criteria that apply to the wetland. Circle the Category when the appropriate criteria are met. SCl Estuarine wetlands? (see p.87) Does the wetland meet the following criteria for Estuarine wetlands? The dominant water regime is tidal, Vegetated,and With a salinity greater than 0.5 ppt. YES =Go to SC 1.1 NO X SC 1.1 Is the wetland within a National Wildlife Refuge,National Park,National Estuary Reserve,Natural Area Preserve, State Park or Educational,Environmental,or Scientific Reserve designated under WAC 332- 30-151? Cat. 1 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 sp ,. are only species that cover more than 10%of the wetland,then the wetland should be given a dual rating(I/II). Cat. II 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 Rating or un-mowed grassland 1/11 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. 88) 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 WNHPIDNR) S/T/R information from Appendix D or accessed from WNHP/DNR web site YES Contact WNHP/DNR(see p. 88)and go to SC 2.2 NO X 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 YES =Category 1 NO X SC3 Bogs (seep. 88) Does the wetland(or part of the wetland)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 wetland 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 pests 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 wetland 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 hold 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 wetland 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(11/04) Page 7 of 8 C4 Forested Wetlands (seep. 96) 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=X SC5 Wetlands in Coastal Lagoons (seep. 92) Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? The wetland lies in a depressional 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 X 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 un-mowed grassland. Cat. I The wetland is larger than 1/10 acre(4350 square ft.) YES=Category I NO =Category 11 Cat. II SC6 Interdunal Wetlands (seep. 94) Is the wetland west of the 1889 line(also called the Western Boundary of Upland Ownership or WBUO)? YES=Go to SC 6.1 NO X not an 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? YES=Category Il NO =go to SC 6.2 Cat. II SC 6.2 Is the wetland between 0.1 and 1 acre,or is it in a mosaic of wetlands that is between 0.1 and 1 acre? YES=Category III Cat. 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. 1 Wetland Rating Form—western Washington(11/04) Page 8 of 8