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Home My WebLink AboutSpecial Report (008)WESTECH COMPANY WETLAND DELINEATION REPORT PARCEL5, SUNSHINE ROAD JEFFERSON COUNTY, WASHINGTON June 2001 G. Bradford Shea Submitted to: JEFFERSON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT 621 Sheridan Street Port Townsend, Washington 98368 Submitted by: WESTECH COMPANY P.O. Box 2876 Port Angeles, Washington 98362 JEFFERSON COUNTY DEPT. OF COMMUNITY DEVELOPMENT -- 'P.O. Box 2876 ' Port ~ingeles, Washln~lton 98362 ' Telephone:. (360) 452-0186' Fax: (360) 452-4118 email: bshea@tenforwa~.eom WETLAND DELINEATION ~PORT PARCEL 5, SUNSHINE ROAD JEFFERSON COUNTY, WASHINGTON G. Bradford Shea Submitted to: JEFFERSON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT 621 Sheridan Street Port Townsend, Washington 98368 Submitted by: WESTECH COMPANY P.O. Box 2876 Port Angeles, Washington 98362 ,j,.])'i 2 ' JEFFERSON COUNTY DEPT. OF COMMUNITY DEVELOPMENT CONTENTS 1.0 INTRODUCTION 2.0 METHODS 3.0 WETLAND DELINEATION RESULTS 3.1 Existing Conditions 3.2 Description of Wetlands 3.3 Land Uses and Habitat Values 3.4 Wetland Types and Buffers 4.0 CONCLUSIONS AND RECOMMENDATIONS 4.1 Conclusions 4.2 Recommendations 5.0 REFERENCES 6.0 FIGURES Figure 1. Vicinity Map Figure 2. Site Map Figure 3. Wetland Delineation Map 7.0 TABLES Table l. Table 2. Upland and Wetland Vegetation Site Soils APPENDICES Appendix A- Wetland Data Forms 10 11 12 13 14 15 16 17 18 WT765GRD. RPT/060501 ms JEFFERSON COUNTY DEPT. OF CO1ViMUNtTY DEVELOPMENT 1.0 INTRODUCTION The property described as Parcel 5, (Volume 3 of Surveys, Page 70) located on Sunshine Road extension in Jefferson County, Washington is a 5.1 acre parcel of land owned by Mr. Donald Pitkin. The property is located in the SW quarter of Section 28 of Township 30 North, Range 2 West (Figures 1,2) and consists of tax parcel # (APN 002283029). The owner has applied to Jefferson County for a building permit for a single family residence. The property at Parcel 5, Sunshine Road was checked for critical areas by Westech Company and found to contain two distinct wetland areas. Mr. Pitkin contracted with Westech Company to delineate those wetlands and determine, wetland type and buffer zones. Section 3.0 of this report contains results of the delineation. Surveying and preparation of Parcel Maps has been previously conducted by Clark and Associates. Design studies and maps for septic approval have been prepared by Northwestern Territories, Inc. Field investigation of wetlands was conducted by Dr. G. Bradford Shea during May, 2001. WT765GRD. RPT/060501 iris 2.0 METHODS Wetlands were delineated in the field based on field methods recommended in the Washington State Wetlands Identification and Delineation Manual (DOE 1997). Wetland Rating was accomplished according to the Guidelines of the Washington State Wetlands Rating System (Western Washington) (DOE 1993). Methods were essentially those recommended by the U.S. Army Corps of Engineers for Routine On-Site Field Method of delineation of wetlands (U.S. ACOE 1989). Guidelines and requirements of the Jefferson County Critical Area Code were applied as applicable (Unified Development Code, Section 3, Land Use Districts 2001). Wetland plants were primarily identified in the field, with subsequent collection and keying when necessary. Plants were identified using the following sources: Cooke 1997 Guard 1995 Pojar and Mackinnon 1994 Hitchcock and Cronquist 1973 Lyons 1997 Taylor 1995 Keying of plants using magnifying lenses and dissecting microscope was used as necessary. Determination of wetland indicator status utilized regional keys published by U.S.Fish and Wildlife Service (U.S. FWS 1988). Soils were determined through field examination. Soils were dug or augured to depths of up to 18 inches using a wetland shovel, a 24" soil probe and a standard augur. Soil consistency was determined by feeling for grain size and texture. Soil moisture was determined at that time. In the event of saturated conditions in the hole, depth to standing water was noted. Soil color was determined through comparison of field samples with standard Munsell Color Charts (Munsell 1994). Soil was also examined for presence of mottles, gley and other indicators of anaerobic soil oxidation. Hydrologic conditions were determined through examination of topographic relief and drainage patterns. Soil moistness was determined by hand as indicated above and in the event of standing water, depth to standing water was noted. Initial field surveys were carried out by Dr. Shea on May 3, 16 and 25, 2001. These surveys included identification of plants, wetland habitats, soils and hydrology. WT765GRD. RPT/060501 ms JEFFERSON COUh'fY DEPT. OF COMMUNITY DEVELOPMENT Wetlands were determined based on the Routine On-Site Field Method used by Washington Department of Ecology and the U.S. Army Corps of Engineers. Wetlands were determined by a combination of vegetation, soil and hydrology indicators. Specific transect and quadrat points were sampled along apparent wetland edges. Various points were sampled for vegetation, soil and hydrology in order to determine wetland boundaries. Appendix A contains data forms for one typical sample point from each of the delineated wetlands. Wetlands were staked in the field by 24 inch wooden stakes. Wetland boundaries in forested areas were indicated by use of "Wetland Delineation Boundary" flagging tape placed at appropriate points in trees and shrubs. All boundaries were staked and/or flagged every 20-25 feet. Wetland buffer zones were determined based on field measurements and regulatory requirements and were staked in the field and marked with orange and black striped flagging every 40-50 feet. WT765GRD. RPT/060501 ms JEFFERSON COUNTY DEPT. OF COMMUNI?Y DEVELOPMENT 3.0 WETLAND DELINEATION RES~~ 3.1 Existine Conditions The Site is located on relatively level terrain with slightly lower areas in the southeast and northwest corners. Elevation is roughly 120 feet above mean sea level (msl). The Site vegetation is composed of lowland forest and cleared fields. The forest areas cover most of the property with the exception of the eastern 200 feet, which appears to have been previously cleared. There are two wetland areas on the Site (Figure 3). The wetland in the southeast corner can be categorized as a palustrine emergent wetland. This wetland is irregular in shape (average dimensions are roughly 65'x200'). The wetland on the northwest comer of the property is a riparian shrub-scrub wetland associated with an intermittent drainage channel. Both herbaceous and woody wetland plants are found in the shrub-scrub wetland. The drainage channel was dry during the study period, however, it appears to be an intermittent drainage which carries stormwater runoff to Eagle Creek during the winter months. Soils on the Site are of the Clallam-Hoypus-Dick soil series (SCS 1975). These are generally shallow, well drained, soils underlain by glacial till. The specific soil types at the Site are: 1) Agnew silt loam (AgB) - this is a poorly drained soil with moderately slow permeability. It generally overlies areas of glacial till and outwash. 2) Clallam gravelly sandy loam (CmC)- this is a grayish-brown, well drained soil which formed on terraces. Permeability is moderate above the cemented layer which usually occurs below the root zone at a soil depth of 20-40 inches. 3) Tukey gravelly loam (TuC) -This soil type is moderately well drained, with moderately slow permeability above the cemented layer. This soil sometimes includes sufficient gravels and rocks to hinder cultivation. Analysis of on-site soils and comparison to SCS mapping seems to indicate an area of relatively shallow Agnew silt loam underlying the wetland on the southeast corner of the property. Most of the forested upland portion of the Site appears to be' underlain by Clallam gravelly sandy loam. Tukey series soils appear to be characteristic of the northwestern corner of the Site, however, there are some differences from the SCS mapping. Additionally, these soils appear to be very shallow above glacial till, with horizons of less than six inches in some areas. WT765GRD. RPT/060501 ms jEFFERSON COUNTY DEPT. OF COM,.',,~UNtTY DEVELO Hydrology of the Site is that of a typical lowland area on a moderately shallow slope. Wherever topography is lower or undulates slightly, wetlands tend to form. The wetland at the southeast corner appears to have extended across the east-west gravel road which runs along the property's southern boundary, however, this has been cut off and no culvert appears to have been placed. The wetland at the northwestern corner is adjacent to a drainage channel which enters the property from a culvert under the extension of Sunshine Road, thence flowing northward off the property. From area maps, this channel then appears to mm eastward on an adjacent property and flows to Eagle Creek. 3.2 Description of Wetlands There are two wetlands located on the property. One of these is a palustrine emergent wetland found in the open field area on the southeastern portion of the property near an unnamed access road which marks the southern property boundary. Southeastern Palustrine. Wetland The vegetation of this wetlands is dominated by soft rush (Juncus ef.fusus), reed canarygrass (Phalaris arundinacea) and horsetail (Equisetum arvense) (see Table 1). Nearby upland field areas contain upland grasses, some cultivated grasses, vetch (Vicia americana), thistles (Circium arvense) and a variety of other upland forbs. Northwestern Shrub-Scrub Wetland This area is a riparian wetland adjacent to a typical low elevation forest. Douglas fir (Pseudotsuga menziesii), hemlock (Tsuga heterophylla) and western red-cedar (Thuja plicata) dominate most of the forest. Occasional alder (Alnus rubra) and big-leaved maple (Acer macrophyllu .m.) are also found in the forested area. The riparian wetland on this portion of the property is a shrub-scrub wetland which is somewhat limited on the property, extending from the culvert location to the north a distance of roughly 150 feet (see Figure 3). Wetland soils in this wetland are very shallow dark brown organic soils above a hardpan layer of glacial till. Wetland plants including salmonberry (Rubus spectabilis) and wild rose (Rosa nutkana) are the dominant plants in the wetland with a few sedges (Carex lyngbyei.) and wetland-~ grasses (Lolium perenne) on the eastern side. J .... k.., 0 N COUNTY WT765GRD.RPT/06050 lms 3.3 Land Uses and Habitat Values The Site is currently an undeveloped rural property zoned for residential development. The Site contains an open field area which includes the southeastern wetland with the remainder forested, with a shrub area surrounding the northwestern wetland. The wetlands on the site appear to provide good habitat for small mammals and birds, particularly the riparian shrub-scrub area along the northwestern drainage. Larger mammals including mule deer may utilize the forested area. The wetlands are fairly seasonal in terms of saturation and generally do not contain standing water except during winter months. 3.4 Wetland Types and Buffers Both wetlands on the Site appear to fall within the category of Type III wetlands. They are moderately diverse and contain mostly native species. Wetland size and location is shown in Figures 2 and 3. Both wetlands appear to be above the regulatory threshold in size. A 50 foot buffer is required for development of a single family residence (minor new development) and flagging indicating that size buffer zone has been placed around these two wetlands. t JEFFERSON COUNW WT765GRD. RPT/060501 ms 4.0 CONCLUSIONS AND RECOM~NDATIONS 4.1 Conclusions Two Type III wetlands were found on the property. This included a palustrine emergent wetland and a shrub-scrub riparian wetland. These wetlands were both found to be greater than 10,000 square feet in size and the riparian wetland appears to continue and to connect to other regulated wetlands downstream. Buffer zones of 50 feet have been mapped around these wetlands for the proposed residence as per Jefferson County regulations (Jefferson County 2001). 4.2 Recommendations Figure 3 shows mapped locations of regulatOry wetlands found on the Site. Recommended 50 foot buffer zones around these wetlands have also been shown on Figure 3. No structures, grading, excavating, filling, draining or other activities which may adversely affect the wetlands may be carried out in the wetland or in the buffer zones as per Section 3.6.9 of the Unified Development Code. JEFFERSON COUNTY DEPT. OF COMMUNITY DEVELOPMENT WT765GRD. RPT/060501 ms 5.0 REFERENCES JEFFERSON COUNTY DEPT. OF COMMUNITY DEVELOPMENT Clark and Associates. 1979. Survey Recorded in Volume 3, Page 70 of Records of Jefferson County, Washington. Cooke, S.S. 1997. A Field Guide to the Common Wetland Plants of Western Washington and Northwestern Oregon. Seattle Audubon Society. Seattle, Washington. Guard, J. 1995. Wetland Plants of Washington and Oregon. Lone Pine Publishing. Renton, Washington. Hitchcock, C.L. and A. Cronquist. 1973. Flora of the Pacific Northwest. University of Washington Press. Seattle, Washington. Jefferson County. 2001. Jefferson County Unified Development Code. Section 3, Land Use Districts, Subsection 3.6 - Wetlands. Department of Community Development. Port Townsend, Washington. Lyons, C.P. 1997. Washington. Wildflowers of Washington. Lone Pine Publishing. Renton, Munsell Color. 1994. Munsell Soil Color Charts. GretagMacbeth. New Windsor, New York. Northwestern Territories, Inc. (NTI). 2001. Septic System SPAADApplication Site Plan, Parcel //002283029 for Don Pitkin. Port Angeles, Washington. Pojar, J. and A. MacKinnon. 1994. Plants of the Pacific Northwest Coast. Lone Pine Publishing Company. Redmond, Washington. Taylor, R. 1995. Northwest Weeds. Mountain Press Publishing Company. Missoula Montana. U.S. Army Corps of Engineers (ACOE). 1989. Federal Manual for Identifying and Delineating Jurisdictional Wetlands. U.S. Government Printing Office. Washington, D.C. U.S. Fish and Wildlife Service (FWS). 1988. National List of Species that Occur in Wetlands; Region 9 (and Supplement). Biological Report 88(26.9). Portland, Oregon. WT765GRD. RPT/060501 ms U.S. Geological Survey. 1985. Quadrangle Map of Gardiner, Washington. 1:24,000 Scale. Published 1953, Photorevised 1985. Boulder, Colorado. U.S. Soil Conservation Service (SCS). 1975. Soil Survey of Jefferson County Area, Washington. U.S. Department of Agriculture. Washington, D.C. Washington Department of Ecology (WDOE). 1993. Washington State Wetlands Rating System: Western Washington. Second Edition. Publication // 93-74. Olympia, Washington. Washington Department of Ecology (WDOE). 1997. Washington State Wetlands Identification and Delineation Manual. Publication //96-94. Olympia, Washington. WT765GRD. RPT/060501 ms WT765GRD. RPT/060501 ms 6.0 FIGURF~ JEFFERSON COUNTY DEPT. OF COMt,,,~Ut'iIT¥ DEYEI..OPN~Et'tT 10 i T 11' T T 359, /5( .. ' 175 21 ." II ;! Project Site 33 · BM 125 -Gb2'dine Figure 2. Site Map Westech Company, 2001 ..,.--,.,;: .--.,-.-. ,,.~.a-: .-~ ~. ,-,i--4- :::r :~:.. ,.-z-,--t:. :--~..: ~ / '"'"--\ // \\ //1, / ~.. \ ! ..-'"-..'r~'-.?? 1. ~'~ I .~ .~ .' ee \ '-. ':: ........ .... .' , .. ' '- "" i \ ". III ,d~& - PU~ii~A,X I 'k._ °u°z 'I°J~n8,0~ ____~ ..... · · ., 000~ d 'fig~ ....... ., Fibre 3. Wetland Delineation Map Westech Company, 2001 WT765GRD. RPT/060501 ms uEFF~_RSO COUNTY DEPT. OF COMM[:NITY DEVELOPN~,ENT 7.0 TABLES 14 TABLE 1. UPLAND AND WETLAND VEGETATION Common Name Scientific Name Indicator * Southeasmrn Paluslxine-Emergent Wetland (wet meadow- fields) Soft rush Tufted hairgrass Red fescue Foxtail (short-awn) Horsetail Pacific silverweed Reed canarygrass Blackberry Juncus effusus FACW Deschampsia cespitosa FACW Festuca rubra FAC Alopecuru$ aequalis OBL Equisetum arvense FAC Potentilla anserina OBL Phalaris arundinacea FACW Rubus t~rocerus FACU Northwestern Riparian Shrub-Scrub Wetland Salmonberry Rubus spectabilis FAC Nootka rose Rosa nutkana FAC Lyngby sedge Carex lyngbyei OBL Perennial ryegrass Lolium perenne FACU Upland Forest Douglas Fir Pseudotsuga menziesii FACU Western Hemlock Tsuga heterophylla FACU Western red cedar Thuja plicata FAC Red alder Alnus rubra FAC Big-leaved maple Acer macrophyllum FACU Red elderberry Sambucus racemosa FACU Oceanspray H01odiscus discolor UPL Upland Field (eastern portion of property) Vetch Vicia americana UPL White clover Trifolium repens FACU Canada thistle Circium arvense FACU Nettle Unica dioica FACU Indicators: UPL = Upland plant, FACU= Facultative Upland Plant (more upland than wetland), FAC = Facultative (borderline wetland plant), FACW= Facultative Wetland Plant (prefers wetland conditions), OBL = Obligate (only found in wetlands). WT765GRD. RPT/060501 ms 15 TABLE 2. SITE SOILS Wetland Type Color Value/Chroma Southeastern silt loam over glacial till This soil is a very gravelly silt-loam over glacial till at 10-12 inches. Value varies between 3/1 and 2/1 with gley. dark grey-brown 3/1 (10YR) Northwestern sandy-silt loam over glacial till dark brown This soil is a very shallow, highly organic dark-brown soil over glacial till at 3-6 inches depth. Some mottles were observed. Upland forest These soils were lighter brown sandy-silt loams These soils were deep and well drained. 3/2 (10YR) 3/3 (10YR) Value/Chroma readings are from comparison of field samples with Munsell Soil Color Charts WT765GRD. RPT/060501 ms 16 WT765GRD. RPT/060501 ms JEFFERSON COUNTY DEPT. OF COMMUNITY DEVELOPS'lENT APPENDICES 17 APPENDIX A - WETLAND DATA FORMS WT765GRD. RPT/060501 ms 18 Project/Site: DATA FORM 1 Routine Wetland Determination (WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual) Applicant/owner: A~. 0..-~,- !z~ Investigator(s): tY>.-/-~,- ~-~z,~,,& Do Normal Circumstances exist on the site? ~ no Is the site significantly disturbed (atypical situation)?yes Is the area a potential Problem Area? yes VEGETATION Date: County: State: S/T/R: community rD: Transect ID: Plot ID: Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator JHY'DROPHYTIC VEGETATION INI)ICATORS: % of dominants OBL, FACW, & FAC' ~'~ Check all indicators that apply & explain below: Regional knowledge of plant communities Physiolo~cal or reproductive adaptations Technical Literature Wetland plant list (nat'l or regional) Morphological adaptations Wetland Plant Data Base OTHER __ Hydrophytic vegetation present? ~ no Rationale for decision/Remarks: HYDROLOGY no yes (' r~b)'[ Sediment Deposits: _~ Is it the g-rowing season? Based on: Dept. of inundatio/n: ~-~.w -e":.., ~ ~/.inches Depth to free water in pit: ~ 4~inc~es 5- Water Marks: yes ~ [ Drift Lines: yes(~n°~ I Drainage Patterns: yes,~h9) Oxidized Root (live r$ot~) ILocal Soil Survey:,,: e&~ no Channels <12 ih. yes ,m.~_o) I ' FAC Neutral' yes no Water-stained Depth to saturated soil: Check all that apply & explain below: Stream, Lake or gage data: Aerial photo~aphs: ~" Other: Other: Leaves: yes no Wetland hydrology present? Rationale for decision/Remarks' Map Unit Name [(Series & Phase) TTaxono~ Drainage Class ~-d(~ Field observations conf'm-n ma e~p.~.~.pe? Profile Description Depth Horizon Matrix color Mottle colors Mottle abundance Texture, concretions, (inches) (Munsell (Munsell size & contrast structure, etc. moist) moist) ~ - rj 7,fl ffydric soils present? _iydric Soil Indicators: (check all that apply) ~ Histosol ~ Histic Epipedon ~ Sulfidic Odor ~ Aquic Moisture Regime ~ Reducing Conditions v" GIeved orLow-Chroma Colors no No Drawing of soil profile (match description_) Concretions High Organic Content in Surface Layer of Sandy Soils Organic Streaking in Sandy Soils Listed on Local Hydric Soils List Listed on National Hydric Soils List Other (explain in remarks) Rationale for decision/Remarks- ~ etland Determination (circle) I-tvdrophytic vegetation present? ~ no E dric soils present? :~ no Is the sampling point Vr'etland hvdrolo* resent? ~ within a wetland? Rationale./Remarks: no N~FES: JEFFERSON COUNTY DEPT. OF COMMUNID/DEVELOP~,,!ENT Project/Site: DATA FORM 1 (WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual' Applicant/owner: Investisator(s): 1~,--. ~3,-.0-,~ .42- 5'~_-- Do Normal Circumstances exist on the site? yes Is the site sig'nificantly disturbed (atypical situation)?yes Is the area a potential Problem Area? yes VEGETATION~ State: S/T/R: Transect ID: ~'~ Plot ID: -----. Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator HYDROPHYTIC VEGETATION INDICATORS: % of dominants OBL, FACW, & FAC: Check all indicators that apply & explain below: Regional knowledge of plant communities Physiological or reproductive adaptations Technical Literature Wetland plant list (nat'l or regional) Morphological adaptations Wetland Plant Data Base OTHER Hydrophytic vegetation present? ~ no Rationale for decision/Remarks: HYDROLOGY Is it the vowing season? Based on: Dept. of inundation: inches Depth to free water in pit: Depth to saturated soil: x.r,4, inches ~'-~-~' inches Check all that apply & explain below: Stream, Lake or gage data: Aerial photo~aphs: "/' Other: no Water Marks: yes ~ Drift Lines: yes Cg.~' Oxidized Root (live roots) Channels <12 ih. yes ~ FAC Neutral: yes ~ Other: iSediment Deposits: ),es no Drainage Pattem sF"~y~{s..)n o Local Soil Surveyi~("~ no Water-stained Leaves: yes ~ Wetland hydrology present? Rationale for decision/Remarks: no SOILS Map Unit Name '~ (Series & Phase) Drainage Class ._ Field observations confm-n ~es) ma~e ? No Proffie Description Depth Horizon Matrix color ' Mottle color'-'~'~~- Mottle abundance Texture, concretions, (inches) (MunseI1 (Munsell size & contrast structure, etc. moist) moist) .,, -- ors: ( ail that apply) ~ Histosol Histic Epipedon ~ Sulfidic Odor -- ,/' Aquic Moisture Regime ,'/' Reducing Conditions '-'/ Gley_..ed or Low-Chroma Colors ITydric soils present? (.y.y.y.y.~ no ~' ~.tionale for decision/Remarks: < / etland Determination (circle) Drawing of soil profile (match descriptionD Concretions High Organic Content in Surface Organic Streaking in Sandy Soils Listed on Local Hydfic Soils List Listed on National Hydric Soils List Other (explain in remarks) Layer of Sandy Soils [-!,,drophytic vegetation present? E dric soils present? W'6tland h drolo* resent? Rotionale/Remarks: es' no Is the sampling point within a wetland? ~_~'e~s ) no NOTES: [ UEPT. OF COMMUNITY OE'~EI OPM~NT Wetlands Rating Field Data Form I I, I Background Information: JEFFERSON COUNTY N~e of wed~d (i~ ~own): Gove~ent J~is~cdon of weald: ~¢~ <~ / Location: 1/4 S~don: ~ of 1/4 S: ~ S~don: Z ~ Town--p: 3o R~ge: Sources of Information: (Check all sources that apply) Site visit: /_ usGs To~ Map: ¢ ~I map: Aed~ Photo: ~ Soils s~¢y: OBer: __ Des~ibe: ~e~ ~e Field Data fo~ is complete enter Category here: ~ Q.1. High Quality Natural Wetland Circle Answers ~swer ~s question if you have adequate information or ex~dence to do so. If not ~nd someone wi~ ~e expense to a~wer ~e question. ~en, if ~e answer to qu~dons la, lb ~d lc ~e ~1 NO, contact ~e Na~ Heritage program of DNR. la. Human caused disturbances. Is ~ere sig~cat evidence of hum~-caused ch~ges to topography or hy~ology of ~e wetl~d ~ i~cat~ by ~y of ~e followiag Co~ider o~y changes ~at may have ~ken place in ~e l~t 5 decades. ~e impac~ of ch~ges done e~lier have probably been stabilize ~d ~e wed~d ~osystem will be close to reac~g some ~ew ~libdum ~t may represent ~ ~gh qu~ity wed~d. 1 al. Ups~eam watershed > 12% im~rvious. Y~: go to Q.2 t ~. Weald is ~tch~ ~d water ~ow is not obs~cted. Y~: go to Q.2 ta3. Weald h~ been g~ad~, ~11~, logged. ~o to Q.2 1 a4. Water in wed~d is con~oll~ by ~kes, weirs, etc. Y~: go to Q.2 go to Q.2 1 ~. Wed~d is gr~. ~ ~ s ~ ~ 1 a6. O~er in~cators o¢ ~s~b~ce ¢ist below) . go to Q.2 .. No: go to lb. .... 25 lb Are there populations of non-native plants which are currently present, cover more than 10% of the wetland, and appear to be invading native populations? Briefly describe any non-native plant populations and Information source(s): lc. Is there evidence of human-caused disturbances which have visibly degraded water quality. Evidence of the degradation of water quality include: direct (untreated) runoff from roads or parking lots; presence, or historic evidence, of waste dumps; oily sheens; the smell of organic chemicals; or lifestock use. Briefly describe: Q.2. Irreplaceable Ecological Functions: Does the wetland: .i~ have at least 1/4 acre of organic soils deeper than 16 inches and the wetland is relatively undisturbed; OR [IIf the answer is NO because the wetland is disturbed briefly describe: Indicators of disturbance may include: - Wetland has been graded, filled, logged; - Organic soils on the surface are dried-out for more than half of the year; - Wetland receives direct stormwater runoff from urban or agricultural areas.]; OR have a forested class greater than 1 acre; OR have characteristics of an estuarine system; OR have eel grass, floating or non-floating kelp beds? 2a. Bogs and Fens Are any of the three following conditions met for the area of organic soil? 2a. 1. Are Sphagnum mosses a common ground cover (>30%) and the cover of invasive species (see Table 3) is less than I0%? Is the area of sphagnum mosses and deep organic soils > 1/2 acre? Is the area of sphagnum mosses and deep organic soils 1/4-1/2 acre? 2a. 2. Is there an area of organic soil which has an emergent class with at least one species from Table 2, and cover of invasive species is < 10% (see Table 3)? 26 Is the area of herbaceous plants and deep organic soils > 1/2 acre? Is the area of herbaceous plants and deep organic _s~ 1/4-1/2 acre? jEFFERSON COUNTY DEPT. OF (3'(,;~,,~M~J~''ilTy DEVELOPMEt',IT YES: go to Q.2 No: go to lc. YES: go to Q.2 NO: Possible Cat. I contact DNR- ( ~ all: go to Q.3) YES go to 2a YES: Go to 2b YES: Go to 2c YES: Go to 2d YES: Category I YES: Category II NO: Go to 2a. 3 YES: Category I YES: Category II NO: Go to 2a. 3 2a.3. Is the vegetation a mixture of only herbaceous plants and Sphagnum mosses with no scrub/shrub or forested classes? Is the area of herbaceous plants, Sphagnum, and deep organic soils > 1/2 acre? Is the area of herbaceous plants, Sphagnum, and deep organic soils 1/4-1/2 acre? Q.2b. Mature forested wetland. 2b. 1. Does 50% of the cover of upper forest canopy consist of evergreen trees older than 80 years or deciduous trees older than 50 years? Note: The size of trees is often not a measure of age, and size cannot be used as a surrogate for age (see guidance). 2b.2. Does 50% of the cover of forest canopy consist of evergreen trees olde~ than 50 years, AND is the structural diversity of the forest high as characterized by an additional layer of trees 20'-49' tall, shrubs 6' -'20', tall, and a herbaceous groundcover? 2b.3. Does < 25% of the areal cover in the herbaceous/groundcover or the shrub layer consist of invasive/exotic plant species from the list on p. 197 Q.2c. Estuarine wetlands. 2cl. Is the wetland listed as National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park, or Educational, Environmental or Scientific Reserves designated under WAC 332-30-1517 ..... 2c.2. Is the wetland > 5 acres; ............................ Note: If an area contains patches of salt tolerant vegetation that are 1) less than 600 feet apart and that are separated by mudflats that go dry on a Mean Low Tide, or 2) separated by tidal channels that are less than 100 feet wide; all the vegetated areas are to be considered together in calculating the wetland area. or is the wetland 1-5 acres; ...................................... or is the wetland < 1 acre? ..... .:' ................................. DEPT. OF CoMMUN~IW D£VELOPM,- J YES: Category I YES: Category NO: Go to Q.3. YES: Category I NO: Go to 2b.2 YES: Go to 2b.3 NO: Go to Q.3 YES: Category I NO: Go to Q.3 YES: Category I NO: Go to 2c.2 YES: Category I YES: Go to 2c.3 YES: Go to 2c.4 27 28 2c.3. Does the wetland meet at least 3 of the following 4 criteria: ........ - minimum ex/sang evidence of human related d/sturbance such as d/k/ng, d/tch/ng,/il/hag, cu/tivat/on, grazing or the presence of non- native p/ant species (see guidance for definition); - surface water connection with tidal saltwater or tidal freshwater; - at/east 75% of the wetland has a !0ft buffer open water, shrub or forest; of ungrazed pasture, YES: Category I NO: Category II - has at least 3 of the following features: low marsh; high marsh; tidal channels; lagoon(s);WOody debris; or contiguous freshwater wetland. 2c.4. Does the wetland meet all of the four criteria under 2c3. (above)?.. Q.2d. Eel Grass and Kelp Beds. 2d. I. Are eel grass beds present?. without a surface water connection to streams, lakes, rivers, or other wetland, and has < 0.1 acre of vegetation. 2d.2. Are there floating or non-floating kelp bed(s) present with greater than YES: Category I 50% macro algal cover in the month of August or September'~ .......... NO: Category II Q.3. Category IV wetlands. 3a. Is the wetland: less than 1 acre and, 3~ hydrologically isolated ~.~l, ~_ $ . comprised of one vegetated class that is dominated (> 80% area/cover) ~ ~'.- ~S' Category IV by one species from Table 3 (page 19) or Table 4 (page 20 ) < N~_OPgo to 3b 3b. Is the wetland: less than two acres r,e~- and, hydrologically isolated. ' with one vegetated class, and > 90% of area/cover is any combination of species from Table 3 (page 19) ,~., [ YE~S: Category IV [o to 3c 3c. Is the wetland excavated from up/and &~! a pond smaller than 1 acre / YES: Category IV '~-~~o to Q.4 YES: Category II . _Y~_ S: Category I NO: go to 2d.:~ Significant habitat value. Answer all questions and enter data requesteck 4a. Total wetland area Estimate area, select from choices in the near-fight column, and score in the far column: Enter acreage of wetland here: ? acres, and source: 4b. Wetland classes: Circle the wetland classes below that qualify: Open Water: if the area of open water is > 1/4 acre Aquatic Beds: if the area of aquatic beds > 1/4 acre, Emergent: if the area of emergent class is > 1/4 acre, Scrub-Shrub: if the area of scrub-shrub class is > 1/4 acre, Forested: if area of forested class is > 1/4 acre, Add the number of wetland classes, above, that qualify, and then score according to the columns at fight. e.g. If there are 4 classes (aquatic beds, open water, emergent & scrub- shrub), you would circle 8 points in the far fight column. Circle scores that qualify acres ~ · >2~ 6 ~-2~ 5 10-~ 4 5-10 3 1-5 2 <0.1 0 # 9f classes Points 2 ....... 3 3 ....... 6 5 .......10 4c. Plant species diversity. For each wetland class (at right) that qualifies in 4b above, count the number of different plant species you can find that cover more than 5% of the ground. You do not have to name them. tatic Bed # svecies in class ~ 1 0 2 1 3 2 >3 3 Score in column at far fight: e.g. If a wetland has an aquatic bed class with 3 species, Emergent an emergent class with 4 species and a scrub-shrub class with 2 species you would circle 2, 2, and 1 in the far column. Note: Any plant species with a cover of > 5% qualifies for points within a class, even those that are not of that class. JEFFERSON CuU~a ~, DEPT. OF COMMUNITY DEVELOPMENT Scrub-Shrub Forested 1 0 2 >5 3 1 0 2 1 34 2 >4 3 1 0 2 1 3-4 2 >4 3 29 4d. Structural diversity. '" If the wetland has a forested class, add 1 point if each of the following classes is present within the forested class and is larger than 1/4 acre: -trees > 50' tall ..................... YES - 1 -trees 20'- 49' tall ................... YES - 1 -shrubs ............................. YES;- 1 -herbaceous ground cover. ............ YES - 1 Also add 1 point if there is any "open water" or "aquatic bed" class immediately next to the forested area (ie. them is no. scrub/shrub or emergent vegetation between them). YES - 1 4e. Decide from the diagrams below whether interspersion between High - 5 ; wetland classes is high, moderate, low or none? If you think the Moderate - 3 amount of interspersion fails in between the diagrams score accordin~y Low - 1~..,~ Non (i.e. a moderately high amount of insterspersion would score a 4, ~__..~ while a moderately low amount would score a 2) none low low ~~~ -:!:i:' ~=~ il~.:.:.:.:..~f ~~ ~ ':':~' I ~---.-.-..-.:_-::.x~ ~ moderate moderate high 4L Habitat features. Answer questions below, circle features that apply, and score to right: Is there evidence that the open or standing water was caused by beavers YES = 2 Is a heron rookery, located within 300'? YES = 1 Are raptor nest/s.tocated within 300? YES = 1 Are there at least 3 standing dead trees (snags) per acre greater than 10" in diameter at "breast height" (DBH)?. YES = 1 Are there at least 3 downed logs per acre with a diameter > 6" for at least 10' in len=mla? YES = 1 Are there areas (vegetated or unvegetated) within the wetland that are ponded for at least 4 months out of the year, and the wetland has not qualified as having an open water class in Question 4b. ? YES = 2 ' ~-~ L~ U W l~ L~ L___ .............. J 4g. Connection to streams. (Score one answer only.) 4g.l. Does the wetland provide habitat for fish at any time of the year AND does it have a perennial surface water connection to a fish bearing stream. 4g.2 Does the wetland provide fish habitat seasonally AND does it have a seasonal surface water connection to a fish bearing stream. 4g.3 Does the wetland function to export organic matter through a surface water connection at all times of the year to a perennial stream. 4g.4 Does the wetland function to export organic matter through a surface water connection to a stream on a seasonal basis? 4h. Buffers. Score the existing buffers on a scale of 1-5 based on the following four descriptions. If the condition of the buffers do not exactly match the description, score either a point higher or lower depending on whether the buffers are less or more degradecL Forest, scrub, native grassland or open water buffers are present for more than 100'around 95% of the circumference. "' Forest, scrub, native grassland, or open water buffers wider than 100' for more than 1/2 of the wetland circumference, or a forest, scrub, grasslands, or open water buffers for more than 50' around 95% of the circumference. Forest, scrub, native grassland, or open water buffers wider than 100' for more than 1/4 of the wetland circumference, or a forest, scrub, native grassland, or open water buffers wider than 50' for more than 1/2 of the wetland circumference. No roads, buildings or paved areas within 100' of the wetland for more than 95 % of the wetland circumference. No roads, buildings or paved areas within 25' of the wetland for more than 95% of the circumference, or No roads buildings or paved areas within 50' of the wetland for more than 1/2 of the wetland circumference. Paved areas, industrial areas or residential construction (with less than 50' between houses) are less than 25 feet from the wetland for more than 95% of the circumference of the wetland. YES=6 YES =4 Score = 5 Score = 3 Score = 2 Score = 2 Score = 0 31 Connection to other habitat areas: --'- '----- Select the description which best matches the site being evaluated. -Is the wetland connected to, or part of, a riparian corridor at least 100' wide ~g two or more wetlands; or, is there an upland connection present >100' wide with good forest or shrub cover (>25% cover) connecting it with a Significant Habitat Area? YES =5 Is the wetland connected to any other Habitat Area with either 1) a forested/shrub corridor < 100' wide, or 2) a a corridor that is > 100'wide, but has a low vegetative cover less than 6 feet in height? .__~ 'Is the wetland c°nnected to, or apart of, aripadancorddor between 50- 100' wide with scrub/shrub or forest cover connection to other wetlands? · YES-- · . - Is the wetland connected to any other Habitat Area with narrow corridor (<100') of low vegetation (< 6' in height)? Is the wet/and and its buffer (if the buffer is less than 50' wide) completely isolated YES = by development (urban, res/dentia/with a density greater than 2/acre, or industda/)? YES = 0 Now add the scores circled (for Q.Sa - O.Si above) to get a total. Is the Total greater than or equal to 22 points? ~~__= Category[/._ Catego~,5~ Iii -'7 32 L L., L.., L_ L . L L L l L L, L L f.-- I L L L L I,--,