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Home My WebLink AboutWetland Delineation Report 502022012 ~L-\/ oLP -1~S- MUTOlo- 16u WETLAND DELINEATION REPORT: 91 SYLOPASH LANE ASSESSOR'S PARCEL #502022012 BRINNON, WASHINGTON G. Bradford Shea, Ph.D. November 2004 Submitted to: RIECEK,\rED MAR 2 7 2006 JHHRSON COUNTY oen JEFFERSON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT 621 Sheridan Street Port Townsend, Washington 98368 Submitted by: WESTECH COMPANY PO Box 2876 Port Angeles, Washington 98362 CONTENTS CHAPTER/SECTION PAGE NO. 1.0 INTRODUCTION 1 2.0 METHODS RECEIVED 4 3.0 WETLAND DELINEATION RESULTS 6 3.1 Existing Conditions MAR 2 7 2006 6 3.2 Description of Wetlands 6 3.3 Land Uses and Habitat Values JEffERSON COUNTY OeD 9 3,4 Wetland Types and Buffers 9 4.0 CONCLUSIONS AND RECOMMENDATIONS 10 4.1 Conclusions 10 4.2 Recommendations 10 5.0 REFERENCES 11 6.0 TABLES 13 Table 1. Upland and Wetland Vegetation 14 Table 2. Site Soils 15 FIGURES 2 Figure 1. Location Map 3 Figure 2. Vicinity Map 7 Figure 3. Site Map APPENDICES 16 Appendix A - Wetland Data Fonns 17 \NW868LBW,TOC/0110404/mas 1.0 INTRODUCTION l,;', ~":' !>; The property described as 91 Sylopash Lane, (Parcel 1, Records of Jefferson County Auditor, Volume 5 of Surveys, Page 3, (APN # 502-022-012), located in Jefferson County, Washington is a 3,33 acre parcel of land owned by Terence Byrne, The property is located in Section 2 of Township 25 North, Range 2 West (Figures 1,2). The owner intends to apply to Jefferson County for a building permit for a single family residence to be added in addition to the home on the property. This residence will be occupied by Ms. Lowery, Terence Byrne's mother, The property at 91 Sylopash Lane was checked for critical areas by Westech,Company (VYestech) and found to contain a large estuarine wetland adjacent to Hood Canal. Ms. Lowery contracted with Westech to delineate those wetlands and determine wetland type and buffer zones, Section 3.0 of this report contains results of the delineation, Parcel Maps of the Site and adjacent properties has been derived from Jefferson County records, Design studies and maps for septic approval will be prepared by a licensed septic designer, Field investigation of wetlands was conducted by Dr. G. Bradford Shea, assisted by Mr, Luke Gauthier during October, 2004. RECEIVED MAR 2 7 2605 JEFFERSON COUNTY DCn WW868LBW,RPT/110404/mas 1 a ;. ...~.~:.:::;N.!~~~~~.~~~~?i;1~1\~!~~~!?t{/~j~t~}E t~~~:;:: :'. . .....-.. ~_.._..... ........ .... ..1.....-....... .... "",""'. ... ........ .. .......:;..i!iN ~ f!f}.~;JDi~Uf.~{{itH;.r.{Jt~i~~~tt;;X2\. ::.-.~:~~;t~.~~~Jfl~~~~})r~ i ~~~fm):j1~~;~;~i.l!J,;~~~tl~i~l~ir~;r0~'~hr:. ." .' .-. . .... h. '.....,' a: " .'- .- .'. '.. '" ..I..,... .... ... ..... ~ " ...... ~. ~" .:... ..'0'." .... f.:'. .':' : ; : \J'\ ' "-~:::~:: ".- .:.~..~. . 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"w - J'.j~ r - f -. .i'.~ )- -.-",';, j' ,'V;}1 J.,.-~, ~ llf~'''-\f ._~"""'""";. J } ~ } .r .......'-:O:f... ~,,.....<,,,._ "'. ~; f.."'t .......J> 1 ~ ; ~ /. ........... J ......... _" .; /tJ-r-:,ro-- ~.'- \ .1" ~,/', /~ ~ ~.._~~) ~,;, \l ~J r r .~ I ..",,, \,,!.. ~~.5~_r'. ":,'\..) ; .:~: l ~~ J~ /"" r~ __ 3.-~-'~''''''''''-~ ,. /' (/' i ~.~,.'- .~ ....~...l/.. f" ~\:,_.J. ~.' / f .----.~ ...-- _~.....,. ,/ r' _/_._-"' r .l .' : il~:t/ .. (Y} ." /. f{ ( '\'. l l f'~: .//(;./-+:.(;,.,.., ::.~,,,,~~:~'''' ,,~--:'~;.;. .,~ l . //.~, I ' , . 11 t - I - ~" ,..." ..,,~.,r /" -.tI""-t(;.-,-;.. r-"'..~ > r,.. / J .. ~ ''''..... ""\ I J 4 ,Ii" "./i ./ ,..-.... _,-"" ~'.' ( .; ( f /l: { . ." -j, 1 "\ '.... _: 1..- 1 ~./,,_/ --- .," ;or< ~....,.,.- R""" <."t .-'~! ~''''il't-j. .~..-_,L: .. .., 1, ,,/ r"'.t" ,...' ..,,~ ,.,.~"" E'?f<"".J1t.;fI"\{ r . l f/ ,/ ... .- . '!'!~ ;' 1/-. ~;;~- .....l-.._.--..-t'"".~ _,r' ,-;,.I_~r~~-'=;;"~ ----~:.-_--.~ ,- ~_~IP.1Ctj~ W or ' '. f ;;;0 '"" .-~,f"" ., ~ .~" ~.I. ........,""" '-"".~ /' ~y " / .- .~-=,., J\ \\\.> :::::~I'~>;~~> --" <, ;;:>;;r~~ '\ "". '.. (r'I\:~;!J~; ~,;-~:.~::'<:/ '/ ':/' ;/,"' /., ~, ~.;~. U"q,){~. . .'\:, /' ;...",1 "'-,...l ..." jI' r' ! (.( ..-l'~ ~~(./' .,' f'~~......." ,Jff.fi;srrfii~nUN,' -.- :'Y:.. "._-...'0.' t ~. _ t (/,,:,':t 4'- ~'.'~ ,,,,,",,- ....,.0 .,.o.~ ." ~.J . T"':;:)'""t.- --1 ~; 'r- ' ......'"-. .', 7: ~ ~~".;, ..,"" .;......"'. ~- - ..-:-~_I'..~-- /- ~. .. J:." )" i t ,W',"".' '''''''\. -,.; .,' I ;. ~ l< ~.~/' "\." ~I,f. ...-'_." ./.... _-4 r .~) .. .: jttf::~~,._.,. /'...~~~=;::::>-:~<J ,/ ,.,.Y..../"":,:: <;:or~ ._.. '//'. / f/ ,/'-:~7J .. ..' . = "'. -. =... " .;.. "c .~ 'i;f'i;f 00 00 NN >;en C 0- to to O-~ E CD 8 .5 ..c: C 00 ~ >. en'" CD C ~ 5 () C o en L.. :m CD -, ~ L.. ::::J o (J) 0- to ~ C o ~ o ..J T"" e ::::J 0> u:: D a~ rl~1rl:::l L ~ .:.;,,~ ,(~.... o "~':/ '2 2 4: -, it ~ lD II: o u '1~ 3S'lC'ilCO,,JS 4: -. .~ 6 4: :Ie 5 ;,: O' ,,~~c ~ \!'I'\:~ \ ~ -;:y>f. ~ I' ~. ~: ~'.: ~;- ~ n q-:, ~ ..,~ 'f', J(h .'-::;'" --">t.- ;t ~t.- ~, ~) ~ '" S '!i " :,: ~ ~ 5,"- .' ~ .~ .:'I (..,!t'J.... ~) s#" RECEK\rED MAR 2 7 2006 JEffERSON COUNrf OeD , --es: ~~ 00 00 NN >;ui c a. cu cu a.~ E Q) 8 .5 "fi6 .! ~ f/)- Q) C 3: 5 o C o f/) L.. ~ .., ~ ::J o en a. cu ~ ~ '2 '0 :> N ~ ::J CD u:: 2.0 METHODS Wetlands were delineated in the field based on field methods recommended in the Washinaton State Wetlands Identification and Delineation Manual (DOE 1997). Wetland rating was accomplished according to the Guidelines of the Washinaton State Wetlands Ratina System (Westem Washinaton) (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), Fi~ld surveys were carried out by Dr. Shea and Mr. Gauthier on October 1, 2004. These surveys included identification of plants, wetland habitats, soils and hydrology. 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 inch 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 pattems, Soil moistness was determined by hand as indicated above and in the event of standing water, depth to standing water was noted. RlECEK\\TED MAR 2 7 2D06 WW868LBW.RPT/110404/mas ,JEFfERSDN COUNTY DCll 4 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. 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 y~lIow and black striped flagging every 40-50 feet. RECEIVED NAR 2 7 2nOs WW868LBW,RPT/110404/mas JEfFERSDN COUNTY DCn 5 3.0 WETLAND DELINEATION RE5UL T5 3.1 Existina Conditions The property is a relatively flat shoreline parcel which grades from a low upland near Sylopash lane on the west side, to a wetland complex adjacent to Hood Canal on the east side. At present, the property contains a single family residence, and a metal shed used for storage. Near the wetland there is a large open lawn. The house is landScaped with shrubs, small trees and a large lawn area that extends out to the wetland. The upland side of the wetland is covered with hard packed gravel fill, appearing to have e~ended into the previous wetland boundary. The rock fill grades into a wetland along a two to three foot vertical drop located roughly 350-375 feet east of the property boundary on Sylopash lane (see Figure 3). The two to three foot vertical drop is caused by the rock fill slope, which abruptly drops into the wetland. The distance the fill extended into the wetland is undetermined. The property owner indicated that the fill work was done under an existing permit from the Washington Department of Natural Resources (Byme 2004). 3.2 DescriDtion of Wetlands Veaetation Vegetation in the wetland areas is typical of a shoreline marsh with moderate to high fluctuating salinity. Salinity along this portion of Hood Canal ranges from 15-30 parts per thousand depending on tidal action and inflow from rivers and streams. Plant species adapted to this salinity fluctuation are dominant including saltmeadow cordgrass (Spartina patens), American glasswort (Sa/icomia viryinica), seaside arrowgrass (Trig/ochin maritima) and spearscale (Atrip/ex patu/a). Other species found in the wetland areas near the uplands are a mixture of sedges, rushes, grasses and herbs, some of which are not normally found in highly brackish conditions. The wetland and upland species found on the Site are listed in Table 1. k t: l: A test sample point (and adjacent one square meter test plot) was located in the wetland near the northeast portion of the site located adjacent to but inside the wetland boundary (see data form VHS-1 in Appendix A). An upland sample point and plot was also documented (see data form VHS-2) in order to confirm the location of the wetland/upland delineation boundary. Other test points were taken as needed and were analyzed in the field but are not formally documented in this report. The vegetation, hydrology and soils from the documented sample plots are found in Appendix A. The wetland boundary was delineated in the field, staked with 24 inch wooden stakes and flagged with pink 'Wetland Delineation" tape. The location of the ~1i9-~ated boundary is shown in Figure 3. ll.{Jt!tCEIVED MAR 2 7 2035 WW868LBW,RPT/110404/mas 6 JEfFERSON COUNTY orn ::~ in m v "'C c: cu +:i (I) 3: "'C ~ c: 0 CU 0) 1i) jg 3: ~ ~ --- ---- ---- 0----------- ----0) ...._...., J * .,/ It." ari () .. ' .. o ...' b -~ .,/,.',(:':'punoq pUenaM ~! ' . .",." '.." ,'_0.. ~ /luepunoq suoz ::.~././ '. ,. " ,,' ," , .. Proposed _._~ Home Site ~ ill I Existing Home I ~ ' I - ~ ~ v Co M N 4 .O~E . auel 4sedolJ\S RECEI\ ED MAR 2 7 20 ;6 JEFFfliSDN CDUN I ' DCD ~~ 00 N N ~~ C C m m Q. Q. E E o 0 UU .s:::. .s:::. o 0 JBJB en en ~~ ~ :J o en Q) c m ...J .s:::. en m Q. o >- en ~ m I Co m ~ S Ci5 ('I) ~ :J C) u: Soils Soils have been mapped in the area by the U.S, Soil Conservation Service (SCS 1975). Soils at and near the Site have been mapped as the Triton-Hoodsport Association. These are moderately well drained, very gravelly soils underlain by compact glacial till or basalt. .:' The specific soil types mapped at the Site are Belfast silt loam (Bg) on the eastern portion of the property and Lummi silt loam (Lu) on the western portion. Belfast Silt Loam (Bg) 1-2 percent slopes, consists of nearly level, well drained soils of flood plains. These soils formed in alluvium, generally in coastal forests. These soils are associated with Lummi and Swantown soils, The upper 15 inches is dark grayish brown silt loam, Below this are dark grayish brown stratified layers ranging in texture from fine sandy loam to silt loam. These soils are somewhat acidic. The soil is well drained with moderate permeability, slow runoff and little or no erosion hazard, Lummi Silt Loam (Lu) is a nearly level soil found on river estuaries adjacent to tide-flats and within 2-4 feet of the average high tide. The typical profile is 5-10 inches of dark brown silt loam underlain by 8-17 inches of dark gray silt loam, becoming very dark grey to olive silt loam to depths of sixty inches, This soil is poorly drained with moderate permeability. Runoff is slow to ponded and erosion hazard is slight except along stream channels. On-site investigations by Westech indicate that the mapped soils correspond well with soils found on the Site. Soils in the wetland have an organic surface layer, underlain by soils which correspond well to the Lummi soil description, There are several small channels in the wetland which operate as tidal sloughs, bringing nutrients to the wetland plants, These channels can be expected to erode and change location with time as is typical in wetlands of this type. , Hvdroloav ~i: :! The Site hydrology in the wetland is controlled by tidal influence from Hood Canal. t: Several sloughs enter the Site and one slough is located just north of the Site. These [ sloughs bring brackish and salt water to the saltmarsh at various times. Saturation in the soils is fairly close to the surface, generally at 12-24 inches depth in the wetlands and roughly 24-36 inches in the nearby uplands depending on ground elevation and distance from Hood Canal, Wetland soils were found to be moist at or near the surface, generally wet at depths of 6-12 inches and sometimes saturated at depths below 12 inches, depending on location. WW868LBW.RPTI110404/mas 8 R1ECEI'lED Mi~R 2 7 2aBS JfFFERSO/V rmfMfv nf'n 3.3 Land Uses and Habitat Values Land uses at the Site include a saltmarsh wetland in nearly natural condition adjacent to a residential property. The residential portion of the property consists of an upland area, which is mostly landscaped (mainly lawn with some shrubs). The wetland extends outward from the upland-wetland transition for roughly 650 feet to Hood Canal. This is a large area which is attached to other natural marsh areas to the north and south. Tidal sloughs cross these marshes, although some areas have been altered to the north and south of the property. Two sloughs were identified on the property. These sloughs and the adjacent wetland are used by native fish species, including juvenile salmonids, shellfish, including several species of mollusk, and several species of clams. The wetlands are utilized by amphibians, birds and small mammals typical of such saltmarsh areas, Elk are known to utilize the property during the spring and summer seasons. The wetland area probably has a moderate to high habitat value based on the number and type of species expected to be present and the general lack of disturbance. 3.4 Wetland Tvoes and Buffers The wetland found at the Site is part of a large wetland more than 20 acres in size which occupies the Hood Canal shoreline near the mouth of the Dosewallips River. The area is relatively undisturbed except for adjacent residential uses. This wetland therefore fits the criteria for a Category I wetland according to the Jefferson County Unified Development Code. The wetland buffer for a Category I wetland is 150 feet (JCUDC 2001, Section 3.6,9). This buffer has been flagged in the field with yellow-black striped flagging tape, Distance from the wetland edge was measured vertically to determine buffer location, Measurements were made from wetland delineation stakes, located between the north and south property lines of the Site, The buffer location is shown in Figure 3, RJECEr\'ED liAR 2 7 2DDn ~lEFFfHSaN CDUNTY Den VVVV868LBVV,RPT/110404/rnas 9 4.0 CONCLUSIONS AND RECOMMENDATIONS 4.1 Conclusions A Category I wetland exists on the property. The boundary of this wetland has been set in the field with surveyor stakes and ''wetland delineation" flagging. The 150 foot buffer zone for a Category I wetland has been set with stakes and striped flagging. The wetland is an estuarine wetland along Hood Canal, near the mouth of the Dosewallips River. There should be no significant impacts from adding a residence to a location closer to the wetland, provided no construction work takes place in the buffer zone and that a silt fence (see recommendations below) is placed along the upland-buffer zone line prior to construction. 4,2 Recommendations We recommend that a permit for construction of a new residence be granted by Jefferson County, subject to County regulations and further recommendations listed below: The drainfield should be constructed as recommended by a certified designer and should be located entirely outside the buffer zone. No construction activity should occur in the buffer zone. A silt fence should be erected both as a physical indicator of the location of the buffer zone edge, and as a protection measure to prevent siltation of the buffer zone and wetland, The silt fence should be adequately maintained during the construction period. Graded areas should not be left as bare ground during the rainy months (October through April). Grasses or other plants should be established immediately upon completion of construction. Any bare areas which must be left for more than a few days should be covered with an erosion/siltation control barrier such as jute netting, or equivalent. Implementation of these recommendations will, in our professional judgment, result in no significant environmental impacts to the wetland as a result of the proposed project. r.'~,' RECCEK\TED MAR 2 7 2DD5 JEFFERSDN COUNTY DCD WW868LBW,RPTI110404/mas 10 5.0 REFERENCES Byrne, Terence. 2004. Personal communication with Dr. Bradford Shea on October 1, 2004. Brinnon, Washington. Cooke, S.S. 1997. A Field Guide to the Common Wetland Plants of Western Washinaton and Northwestern Oreaon. Seattle Audubon Society, Seattle, Washington. Guard, J, 1995. Wetland Plants of Washinaton and Oreaon. 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, 1978, Shoreline Manaaement Substantial Development Permit for Sitina of Residential Structures at Svlopash Point. Jefferson County Board of Commissioners. Port Townsend, 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, Wildflowers of Washinaton, Lone Pine Publishing, Renton, Washington, Munsell Color. 1994, Munsell Soil Color Charts. GretagMacbeth. New Windsor, New York. 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. Delineatina Jurisdictional Wetlands. Washington, D.C. Federal Manual for Identifvina and U.S. Government Printing Office. U,S. Fish and Wildlife Service (FWS). 1988. National List of Species that Occur in Wetlands: Reaion 9 land Supplement). Biological Report 88(26.9), Portland, Oregon. RECEr~lED ~MR .2 7 211116 WW868LBW,RPT/110404/mas 11 JEFFfRSOl~ CDUNTY DeD U,S. Geological Survey. 1985. Quadrangle Map of Brinnon, Washington.. 1 :24,000 Scale, Published 1953, Photorevised 1985. Boulder, Colorado. U.S. Soil Conservation Service (SCS). 1975. Soil Survey of Jefferson County Area. Washinaton. U.S. Department of Agriculture. Washington, D.C. Washington Department of Ecology (WDOE). 1993. Washinaton State Wetlands Ratina System: Western Washinaton. Second Edition. Publication # 93-74. Olympia, Washington. Washington Department of Ecology (WDOE). 1997. Washinaton State, Wetlands Identification and Delineation Manual. Publication #96-94. Olympia, Washington. r ~;. f , RECEI'lED NAR 2 7 2nVS WW868LBW.RPTI110404/mas 12 JffrtRsn~l rJli~~m' nrn . 1&. ' Uti ~~mlijr tJvL 6.0 TABLES lRlEC'EJ"{;'F;D 1t4R 2 'l ,.,~"... · .iI.e,:iJI) JEFfERSON COUNTY OJ;'} WW868LBW,RPT/110404/mas 13 TABLE 1. UPLAND AND WETLAND VEGETATION Common Name Scientific Name Indicator * UPLAND AREA bluegrass Poa pratensis FAC ryegrass Lolium perenne FACU plantain Plantago major FACU+ dandelion Taraxacum officinale UPl red clover Trifolium pratense FACU w_hite clover Trifolium repens FAC pickleweed Salicomia pacifica OBl wood rose Rosa gymnocarpa FACU dovefoot geranium Geranium molle UPl nootka rose Rosa nutkana FAC yarrow Achillea millefolium UPl trialing blackberry Rubus ursinus FACU holly /lex aquifolium FACU WETLAND AREA soft rush Juncus effusus FACW seaside plantain Plantago maritima FACW+ pickleweed Salicomia pacifica OBl seaside arrowgrass Triglochin maritima OBl saltgrass Distichlis spicata FAC+ spearscale Atriplex patula FACW short-awn foxtail Alopecurus aequalis OBl American glasswort Salicomia virginica OBl saltmeadow cordgrass Spartina patens OBl *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 = ObliQaterr---(~.J9und in wetlands). K~fL ]:~ll \VED ~j;\R 2 7 2D~5 WW868LBW.RPTI110404/mas 14 JEfFERSON COUNIY OeD TABLE 2. SITE SOILS LocationlDeoth ~ Color Value/Chroma * Wetland 0-6" silty clay organic brown-black 3/2 (10YR) , 6-12" clayey muck brown-black 3/1 (10YR) , 12" + grey mottled clay dark grey 2.5/10Y (Gley-1) Upland area 0-6" silt loam brown 4/3 (10YR) 6-12" silty loam brown 3/4 (10YR) 12-18" silty loam med. brown 3/3 (1 OYR) * Value/Chroma readings are from comparison of field samples with Munsell Soil Color Charts RECEI\lED t'1i~R 2 7 2'''''''''''' . ~ iJUO JEFFERSON COUNTY DCll WW868LBW,RPT/110404/mas 15 i' ~:; L~ APPENDICES RE(~EKVED M.~.,O 2' 7 n:,,",'," i il<~\~'\ Lt.t~J I rEef: R (In ~,l rU') /! ~lry n ro 1.(flLlrJU1~ L ....'!~!t UlJlJ WW868LBW.RPT/110404/mas 16 WW868LBW,RPT/110404/mas APPENDIX A WETLAND DATA FORMS 17 RECEIVED ~MR 2 7 2006 JEFFERSDN COUNTY DeD Wetlands Rating Field Data Form Background Information: Name of Rater: G.B Shea Affiliation: Westech Company Date: October 1, 2004 Name of wetland (ifknown):DosewaUips River Mouth Area - Hood Canal Government Jurisdiction of wetland: Jefferson County Location: 1/4 Section:_ of 1/4 S: NE Section: 2 Township: 2SN Range: 2W Sources of Information: (Check all sources that apply) Site visit_X_ USGS Topo Map:_X_ NWI map:_ Aerial Photo:_X_ Soils survey:_X_ Other: Describe: When The Field Data fonn is complete enter Category here: i 1. [; Category I Q.1. High Quality Natural Wetland . Answer this question if you have adequate infonnation or experience to do so, If not find someone with the expertise to answer the questions. Then, if the answer to questions 1 a, 1 b and 1 c are all NO, contact the Natural Heritage program of DNR. 1a. Human caused disturbances. Is there significant evidence of human-caused changes to topography or hydrology of the wetland as indicated by any of the following conditions? Consider only changes that may have taken place in the last 5 decades, The impacts of changes done earlier have probably been stabilized and the wetland ecosystem will be close to reaching some new equilibrium that may represent a high quality wetland. 1a.1 Upstream watershed> 12% impervious. 1a2. Wetland is ditched and water flow is not obstructed, 1a3. Wetland has been graded, filled, logged. 1a4. Water in wetland is controlled by dikes, weirs, etc, laS . Wetland is grazed, 1a6. Other indicators of disturbance (list below) 1 b Are there populations of non-native plants which are currently present, cover more than 10010 of the wetland, and appear to be invading native populations? Briefly describe any non-native plant populations and Infonnation source(s): 1c. Is there evidence of human -caused disturbances which have visibly degraded water quality. Evidence of the degradation of water quality include: direct (untreated) nmofffrom roads or parking lots; presence, or historic evidence, of waste dumps; oily sheens; the smell of organic chemicals; or livestock use. Briefly describe: 1 Circle Answers Yes: go to Q.2 Yes: go to Q.2 IiiIIiiIII Yes: go to Q.2 Yes: gotoQ,2 No: go to 1b, YES: go to Q.2 No: go to 1c. YES: go to Q.2 NO: Possible Cat. I Contact DNR ECEf\lED t? 2 7 2""''' ii'.'\ k!,i~ {l . u~u JEFFERSON COUNTY DeD Q.2. Irreplaceable Ecological Functions: Does the wetland: · have at least 1/4 acre of organic soils deeper than 16 inches and the wetland is relatively undisturbed; OR [If 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 I 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 lOO/o? Is the area of sphagnum mosses and deep organic soils> 1/2 acre? Is the area of sphagnum mosses and deep organic soils Y4-1/2 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)? Is the area of herbaceous plants and deep organic soils> 1/2 acre? Is the area of herbaceous plants and deep organic soils 1/4-1/2acre? 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 Y4-1/2 acre? Q.2b. Mature forested wetland. 2b.l. 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). 2 IIiiIi to Q.3) YES: Go to 2b - 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 YES: Category I YES: Category II NO: Go to Q.3. YES: Category I NO: Go to 2b,2 RI:CEI\lED fjlUt y 7 ?f]f,?r," '" !.!.",,,,;) JEFFfRSDN COUNTY DCD 2b,2, Does 50% of the cover of forest canopy consist of evergreen trees older 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', talI, and a herbaceous groundcover? 2b.3. Does < 25% of the areal cover in the herbaceouslgroundcover or the shrub layer consist of invasive/exotic plant species from the list on p. 19? Q.2c. Estuarine wetlands. 2c.1. 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 332-30-151? 2c,2. Is the wetland> 5 acres; ......................................., '.....,..,..,,'.. Note: If an area contains patches of salt tolerant vegetation that are I) 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? ... ... ,..... ..,.....,'.. ... '... '...,..,..,....., .....,.... 2c.3, Does the wetland meet at least 3 of the following 4 criteria: ..".,. - minimum existing evidence of hwnan related disturbance such as diking, ditching, filling, cultivation, grazing or the presence of non-native plant species (see guidance for definition); - surface water connection with tidal saltwater or tidal freshwater; - at least 75% of the wetland has a 100 buffer of un grazed pasture, open water, shrub or forest; - 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.l, Are eelgrass beds present? .,. ...... ,.. ,,'... ... ... ... .,..., ,......., .....,.. 2d.2, Are their floating or non-floating kelp bed(s) present with greater than 50% macro algal cover in the month of August or September?., '" .,.." ... 3 YES: Go to 2b.3 NO: Go to Q.3 YES: Category I NO: Go to Q.3 _I YES: Go to 2c.3 YES: Go to 2c.4 YES: Category I NO Category II YES: Category II NO: Category ill YES: Category I NO: go to 2d.2 ~,. p ~ JfHIHSUtJ CUU/ilY DeD Q.3. Category IV wetlands. 3a. Is the wetland: less than I acre and, hydrologically isolated and, comprised of one vegetated class that is dominated (> 80% areal cover) by one species from Table 3 (page 19) or Table 4 (page 20) 3b. Is the wetland: less than two acres and, hydrologically isolated, with one vegetated class, and > 90% of areal cover in any combination of species from Table 3 (page 19) 3c, Is the wetland excavated from upland and a pond smaller than I acre without a surface water connection to streams, lakes, rivers, or other wetland, and has < 0.1 acre of vegetation. Q.4. Significant habitat value. Answer all questions and enter data requested. 4a. Total wetland area Estimate area, select from choices in the near-right column, and score in the far column: Enter acreage of wetland here:_acres, and source: 4b. Wedand 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 right. e.g. If there are 4 classes (aquatic beds, open water, emergent & Scrub-shrub), you would circle 8 points in the far right column, t t r r 1'::- 4c. PIa.t species diversity. For each wetland class (at right) that qualifies in 4b above, count the number of different plant species you can fmd that cover more than 5% of the ground. You do not have to name them. Score in column at far right: e.g, If a wetland has an aquatic bed class with 3 species, 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. 4 YES: Category N NO: go to 3b YES: Category N NO: go to 3c YES: Category N NO: go to Q.4 Circle scores that qualify acres >200 40-200 10-40 5-10 1-5 0.1-1 <0.1 points 6 5 4 3 2 1 o #of classes Points 1,........... 0 2............ 3 3............ 6 4............ 8 5............ 10 Class # ~ies in class Aquatic Bed 1 2 3 >3 Points o I 2 3 Emergent 1 0 2-3 I 4-5 2 ROCEIVED lJi~'R 2 7 200e &\"1 ' ltiJU JEfffRSON CDUNTY HfJJ Note: Any plant species with a cover of> 5% qualifies for points within a class, even those that are not of that class, Scrub-Scrub I 2 3-4 >4 o 1 2 3 Forested I 2 3-4 >4 o I 2 3 4d. Structural diversity. If the wetland has a forested class, add I point if each of the following Classes is present within the forested class and is larger than 1/4 acre: ~~: -trees> 50' tall... ,..,., ,.......'... .,..... -trees 20'- 49' tall... '.,.."", ,.,.. ,.,.., -shrubs,.""..,............",...... ,......,. -herbaceous ground cover.., ",." ",.." YES - I YES-l YES - I YES - I Also add 1 point if there is any "open water" or "aquatic bed" class Immediately next to the forested area (i.e. there is no scrub/shrub or emergent vegetation between them), YES - I 4e. Decide from the diagrams below whether interspersion between wetland classes is high, moderate, low or none? If you think the amount of interspersion falls in between the diagrams score accordingly (i,e. a moderately high amount of interspersion would score a 4, while a moderately low amount would score a 2) none ~~ . ..._~." moderate low moderate 5 High - 5 Moderate - 3 Low-l None - 0 low high t'1}R 2 7 2~GG JEFfERSON COU~JrY OeD 4f 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 located within 300'? YES = 1 Are there at least 3 standing dead trees (snags) per acre greater than YES = 1 10" in diameter at "breast height" (DHH)? Are there at least 3 downed logs per acre with a diameter YES = 1 > 6" for at least 10' in length? Are there areas (vegetated or unvegetated) within the wetland that are YES = 2 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, ? 4g. Connection to streams. (Score one answer only.) 4g.l, Does the wetland provide habitat for fish at any time of the year AND YES=6 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 YES=4 a seasonal surface water connection to a fish-bearing stream, 4g.3 Does the wetland function to export organic matter through a surface YES = 4 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 YES=2 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 degraded. Forest, scrub, native grassland or open water buffers are present for Score = 5 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 Score = 3 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 Score = 2 wetland circumference. RECEf\lE[1l No roads, buildings or paved areas within 100' of the wetland for more than 95% of the wetland circumference. Sc,.~ = ] "R 7 ''';'''('\1'' IN LUJD 6 JEFFERSD^' Cunllf:;;-v !>,'O, IV vI>>, t U '-..1' ~.. 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 Score = 1 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 % Score = 0 of the circumference of the wetland. 4i. 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 connecting two or more wetlands; or, is there an upland connection present > 1 00' wide with good forest or shrub cover (>25% cover) connecting it with a YES=5 Significant Habitat Area? -Is the wetland connected to any other Habitat Area with either 1) a forested/shrub corridor < 100' wide, or 2) a corridor that is > 100' wide, but Yes = 3 has a low vegetative cover less than 6 feet in height? -Is the wetland connected to, or a part of, a riparian corridor between 50 - 100' wide with scrub/shrub or forest cover connection to other wetlands? Yes = 3 - Is the wetland connected to any other Habitat Area with narrow corridor (<100') oflow vegetation (< 6' in height)? Yes = 1 - Is the wetland and its buffer (if the buffer is less than 50' wide) completely isolated by development (urban, residential with a density greater than 2/acre, Yes = 0 or industrial)? Now add the scores circled (for Q.5a - Q.51 above) to get a total. YES = Category II Is the Total2reater than or equal to 22 ooints? NO = Catei!orv m Rli:1CEr\lED 7 2~M' : t. \') :' : Mt;~\ 2t..e,) JHffRSON COUNTY DCU 7 DATA FORM 1 Routine Wetland Determination (W A State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual) Project/Site: 91 Sylopash Lane pplicant/owner: Terrance Byrne/ Lois Lowery Date: 10/1/2004 County: Jefferson State: WA S/T/R: 2/25N/2W yes . nvestigator(s): Dr. G. Bradford Shea and Luke Gauthier Normal Circumstances exist on the site? I s the site significantly disturbed (atypical situation)? s the area a potential Problem Area? yes GETA TION Stratum H-70% H-20% H-5% H-5% YDROPHYTIC VEGETATION INDICATORS: Yo of dominants OB FACW a. FAC: 1000/0 heck all indicators that apply & explain below: egional knowledge of plant communities _x_ hysiological or reproductive adaptations echnical Uterature _X_ ydrophytic vegetation present? tionale for decision/Remarks: pt. of inundation: pth to free water in pit: pth to saturated soil: Tidal inches Tidal inches _6_ inches Other: . no Tidal Marsh VSH-1 Wetland Indicator Dominant Plant Species Stratum, Indicator OBL OBL FACW OBL Wetland plant list (Nat1 or regional) _X_ Morphological adaptations Wetland Plant Data Base OTHER_ . no ater Marks: . Unes: idized Root (live roots) nnets < 12 in. yes . yes . .no r: RECER\rED JHHRSON COUNTY OeD Triton-Hoodsport ap Unit Name Series & Phase) axonomy (Subgroup) Lummi silt loam rofile Description Drainage Class c Field observations confirm mapped type? . Depth . (inches) Honzon Matrix color . (Munsell Mottle colors Mottle abundance Texture, concretions, moist) (Munsell moist) size & contrast structure, etc. Drawing of soil profile (match description) Q-6 Brown/black 3/2 (10YR) A 6-12 Brown/black 3/1 (10YR) Grey 2.5/10Y (Gley1) Red/brown B 12-18 c ydric Soil Indicators: (check all that apply) X_ Histosol Histic Epipedon Sulfidic Odor X_ Aquic Moisture Regime X_ Reducing Conditions X_ Gleved or Low-Chroma Colors Concretions High Organic Content in Surface Layer of Sandy Soils Organic Streaking in Sandy Soils X_ Usted on Local Hydric Soils Ust Usted on National Hydric Soils List Other (explain in remarks) no Silty clay organic Clayey muck Grey mottled clay dric soils present? . no tionale for decision/Remarks: etland Determination (drde) drophytic vegetation present? I no ydric soils present? no . no etland hydrology present? no tionale/Remarks: All parameters met. JEHfRSOit cumn~ fiCO DATA FORM 1 Routine Wetland Determination (W A State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual) 91 Sylopash Lane pplicantlowner: Terrance Byrne/ Lois Lowery Date: 10/1/2004 County: Jefferson State: WA SIT IR: 2/25N/2W nvestigator(s): Dr. G. Bradford Shea and Luke Gauthier Nonnal Circumstances exist on the site? s the site significantly disturbed (atypical situation)? the area a potential Problem Area? GETATION ootka rose (Rosa nutkana) Stratum H-40% H-40% UPL ii yes fill VSH-2 Upland Indicator Dominant Plant Species Stratum, Indicator FAC H-10% FACU H-10% FACU YDROPHYTIC VEGETATION INDICATORS: Vo of dominants 08 FACW'" FAC: 400/0 heck all indicators that apply & explain below: egional knowledge of plant oommunities ysiological or reproductive adaptations echnical uterature _X_ ydrophytic vegetation present? tionale for decision/Remarks: it the growing season? yes. sed on: October inches inches inches Other: yes . Wetland plant list (Nat1 or regional) _X_ Morphological adaptations Wetland Plant Data Base OTHE~ yes . ater Marks: . Unes: Root (live roots) nnels < 12 in. yes . yes . yes. ~ . · R 2 7 1'((',,,,,, "iAi L~uJ JHffRSOl~ COUNfi DW OILS ap Unit Name Series & Phase) Triton-Hoodsport Drainage Class B axonomy (Subgroup) Belfast silt loam Field observations confirm mapped type? . no Profile Description Matrix color Drawing of soil Depth Horizon (Munsell Mottle colors Mottle abundance Texture, conaetlons, profile (inches) moist) (Munsell moist) size & contrast structure, etc. (match description) 0-6 A Brown 1 4/3 (10YR) I 0-6" Silt '" loam Brown .. 6-12 B 3/4 (10YR) I 6-12" I Silty 12-18 C Meel. Brown ......... 3/3 (10YR) ~ loam I 12-18" I Silty ........ r--. loam Hydric Soil Indicators: (check all that apply) Histosol Concretions Histic Epipedon High Organic Content in Surface Layer of Sandy Soils Sulfidic Odor Organic Streaking in Sandy Soils Aquic Moisture Regime Listed on Local Hydric Soils List Reducing Conditions Listed on National Hydric Soils List Gleved or Low-Onoma Colors Other (explain in remarks) Hydric soils present? yes . Rationale for decision/Remarks: Wetland Determination (drde) Hydrophytic vegetation present? yes , . Hydric soils present? yes Is the sampling point yes Wetland hydrology present? yes within a wetland? ~tionale/Remarks: No indicators met. RECEKVIf1:Ifl> ~M? 2 7 ')"tfl~ . ". t..;;,:/J JffffRSOf~ L,.~ iiV]