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HomeMy WebLinkAbout2002.07.00 - Montana Addition Block 7 50th and Hendricks DelineationNancy Miller Wetland Delineation Report 50 and Hendricks Street Port Townsend, Washington July 2002 Prepared for: Nancy Miller 3823 Seabeck/Holly Road Seabeck, WA 98380 Prepared by: Dixie Llewellin Olympic Wetland Resources, Inc. 856 50th Street Port Townsend, WA 98368 Olympic Wetland Resources, Inc, Y A Nancy Miller Wetland Delineation Report 50`h and Hendricks Street Port Townsend, Washington July 2002 Contents Introduction Description of Site Applied Methodology Classification Washington State Wetland Identification and Delineation Manual Soils Vegetation Hydrology Determining Wetland Edges Findings Soils Vegetation Hydrology Summary References Appendix Map #I Location and Soils Map Map 92 City of Port Townsend Wetland Map Map 43 Findings Map U.S. Army Corps of Engineers Wetland Data Sheets Nancy Miller Wetland Delineation Report 50th and Hendricks Street Port Townsend, Washington July 2002 Introduction At the request ofJan Garing, Windermere Real Estate, Dixie Llewellin ofOlympic WetlandResources, Inc. conducted a wetland delineation on June 24, 2002 for Nancy E. Miller. ALevelIWetlandAssessmentwasconductedinFebruary2000todefinegeneralwetlandconditions. This delineation defines the exact wetland edge, associated buffers, and thebuildableareaforBlock7MontanaAdditionLotsIthrough8. As part of a larger Citystormwaterproject, this wetland was described and classified'in 1995 by Lisa. Palazzi, wetland scientist, as Wetland 4-12 (Sheridan Street Wetland). Description of Site Legal Description: Lots 1 -8 Block 7 Montana Addition, Port Townsend WA. Location. Between Grant and Hendricks, 50" and 51" Street Soils. Mapped as SaB San Juan gravelly sand IoYyam, 0% to 8% slopes This relatively flat site consists of a forested canopy of second growth Douglas' fir-with alushunder -story of oceanspray and ferns_ There are several large red cedars on the site. Theeightlots (200'X200') Hein the southeast corner ofHendricks and 5I Street. Access tothesubjectpropertyisalongeitherHendricksStreetor5VStreet. The wetland andassociatedbufferfallonthesouthernboundaryofthesubjectproperty. As described in the City of Port Townsend Wetland Inventory, Sheridan Street Wetland is ahighqualityforestedwetland, one of the many in a series that link the critical drainage basinalongtheQuimperWildlifeCorridor, terminating at Chinese Gardens. Applied Methodology The following resources were consulted for this project: Level I Wetland Report Nancy Miller (February 2000) City of Port Townsend Wetland Inventory (November 1995) National Wetland Inventory Maps 0 U.S_ Geological Survey Maps 0 City of Port Townsend Wetlands Maps (1995) Soil Survey Maps ofJefferson County Washington State Wetland Identification and SDelineationManual Service 1975) 0 National List of Plant Species That Occur In Wetlands: Northwest (Region 9) Nand' Miller Weiland Delineation ReportReportFileNumber20024)1246 01tmpic Wetland Resources, Inc. 7/02 1 Class kation Wetland classification was determined using the Washington State Department ofEcology (DOE) Wetland Rati stemngSystem (publication #91 -57 October 1991), which assigns a numerical value to any given wetland according to wetland size, quality of surrounding buffers, vegetation diversity, wetland types, and habitat value. Wetlands are rated as entire systems and quite often exceedprojectboundaries. Sheridan wetland has been classified as a Class H wetland (37 points) by LisaPalamin1995. This classification still applies. Washington State Wetland Identificahion and Delineation Manual Fieldwork to determine the actual wetland boundaries was conducted according to the methodology outlined in the Washington State Wetland Identification and Delineation ManualDepartmentofEcology #96 -94). Chapter 173 -22 ofthe Washington Administrative Code requires that all wetlands within the State ofWashington be delineated using this manual. The methodology outlined in the Washington State Wetland Identification and Delineation Manual requires examination of the three parameters for a positive wetland determination: hydre soils, hydrophytic vegetation, and hydrology. For an area to qualify as a jurisdictional wetland it must - have a positive indicator from an three parameters. All wetlands identified using this methodologymaybefederallyregulated, regardless of size. Soils A hydric soil is a soil that forms under conditions of saturation, flooding, or ponding lastinglongenoughduringthegrowingseasontoresultinananaerobicupperlayer. Hydric soilsfavorthegrowthandregenerationofhydrophyticvegetation. The indicators for this type of soilincludelowchronia, mottles, gley and high organic content within the upper 32 inches ofthesoilprofile. Holes were dug on the site and soil colors (including value and chroma) wererecordedinthetop16inches_ Soil colors were analyzed using the Munsell Color Charts1992). Vegetation Wetland plant species must constitute greater than 51 % ofthe total vegetation present to meet thequalificationasasitedominatedbyhydrophyticvegetation. Dominance of plant species isdeterminedbycalculatingactualaerialcoverwithina30.400t radius for trees, a I afoot radius for shrubs, and a 6 -foot radius for the herbaceous layer at. each data point. Commonly occurring plantspecieshavebeenratedbytheUnitedStatesFishandWildlifeService (USFW) National List ofPlarASpeciesThatOccur in wetlands and non wetlands. the fieldwo as to their frequency ofoccurrenceDunngric, each species was recorded and given aratingbasedonindicatorstatus. Hydrology Wetland hydrology is defined in the Washington State Wetland Identification and Delinon Manual as "areas that are periodically inundated or have soils saturated to the surface at some timeduringthegrowingseason ". Areas must have seasonally inundated or saturated soil at least 12.5% Of the growing season. Indicators of hydrology include visual observation of inundation or soil Nancy Miller Wetland Delineation Report 2ReportFileNumber2002 -01246 01%mpic Wetland Resource,, Inc. 7 /02 p A' saturation, water - stained leaves, cracking of the soil surface, and/or sediment deposits. Positivesignsofhydrologyareoftenabsentduringthesummerandfallmonthsbutcanbe-inferred.if therearepositiveindicatorsofhydricsoilandhydrophyticvegetation. . . . Determining Wedand Edges Wetland edges were determined by establishing two data points one within the wetland, which contained positive indicators of all three ofthe wetland requirements: soils, hydrology, and Vegetation, and another data point outside the wetland, where one or all ofthe requirements werenotpresent. Measurements were taken with a Chainman II hip chain from surveyed properlyboundaries. Findings Finding from this delineation concur with the Level I Assessment conducted February 2000. Wetland soils, hydrophytic plants, and standing water were identified on the southern portionofBlock7, on Lots I, 3, and 5. This high quality wetland has a distinct wetland edge definedbybothadropintopographicandadistinctplantcommunitychange. The wetland edge was flagged with orange Wetland Boundary tape at approximately 35, intervals (labeled Al through A9). Buffer edges were flagged with green flaggingmapofthewetlandedgeandassociatedI00 -foot buffer is included in the endixt( Fi A Map #3 Measurements were taken from the flagged survey comer post at the northeast gs corner of Block 7. It should be noted that, due to the dense vegetation and downed logs, measurements are approximate (within 5 tb 10 feet). A survey following this delineation isrecommendedifthebuildingenvelopeistolienexttothebuffer. Soils Soils are mapped by the Jefferson County Soil Survey as SaB San Juan gravelly sandy loam, with 0% to 8% slopes. Although these are not listed as hydric soils they do have a shallowclaylayerthatisoftenimpervious, causing a lateral flow of storm water. Wherever there is adepressioninthelandscape, ponding or saturated soil often occurs. Test pits were dug to a depth of 16 inches in the wetland area and inspected for hydricconditions. Hydric soils were located at Data Point #I with top layers of deep brown (1 OYR3/2) above layers of sandy colored soil (10YR 4/1) with faint orange mottling This soil colormeetstherequirementsofhydricsoil. An upland test pit, Data Point #2, was dug to a depthof10" (to hardpan) on the eastern edge ofBlock 7. Soil colors at this location did notqualifyashydric (1 OYR 4/3 without mottles). Data Point locations are indicated on theFindingsMap (Sheet #33), included in the Appendix_ Vegetal ion Vegetation in the wetland areas includes a mixed deciduous tree layer ofalder, willows, andhawthornwithashrubLayerofNootkarose, spirea, and salmonberry. In the areas with saturatedsoilsorstandingwatersloughsedgeandwaterParsleyarethedominantses. an excellent example ofa L This wetland ispprimewildlifehabitatduetothevarietyofcommunitytypespresent. Nancy Miller Wetland Delineation Report Report File Number 2002 -01246 Olympic Wetland Resources. lnc. 7102 1 IS 4 The dense shrub perimeter with associated forest buffers along with the dead standing and down trees provides nesting and perching sites for birds. i y Generally, the vegetation clearly defines the wetland/upland edge throughout the wetland. The upland plum community consists of an evergreen tree layer of Douglas fir and red cedar with a dense understory of ocean spray, rose, and sword ferns. Below is a list of vegetation identified on site. Scientific Name Common name Status Layer Wetland Talerunt Plante 4lnus rubra Alder FAC Tree Athvrum ilix- emina Lady fern FAC Herb arex obnu to slough a OBL Sedge ratae s dou liasir hawthorn FAC Shrub Equisezum telmateia Giant horsetail FACW Herb eum macro hvllum Lar eleaf avers FACW- Herb enanthe sarmentosa Water ev OBL Herb ibes divaricarum Coast black gooseberry FAC Shrub ubus specrabilis Salmonberry FAC+ I Shrub ahx scouleriana Scouler willow FAC= Tree Thu'a plicata Western, red cedar FAC I Tree; Unland Plantc 4bies andis Grand fir FACU Tree erberis nervosia Dull ore on grape FACU Shrub actvhs Womerata Orchazd FACU Grass aultheria shallop Salal FACU Shrub olodiscus discolor Ocean ray NI Shrub lex sp, HOAh NI Shrub onicera ciliosa Orange honeysuckle NI Shrub oNstichum munitum Sword fern FACU Fern seudotsu a men.-iesti Do - fir FACU Tree teridium a ulinum Bracken fern FACU Fern ubus ursinus Trailing blackbem• FACU Shrub ambucus racemosa Elderberry FACU Shrub vm horica os albus Snowberrs I FACU 1 Shrub UPL Upland Species, FACU Facultative Upland Species/Non Wetland, FAC Facultative Species, FACW Facultative Wetland Species, OBI; obligate Wetland Species, M No Indicator Asagzmed The qualifier of + or — further defines the status of the species Plants classified according to the Fish and Wildlife Service. 1988;1993 Update Hydrology Hydrology was present throughout the wetland. Standing water was measured 112' south of the survey point at the northeast corner of Block 7. Saturated soils were observed under the Nancy Miller Wedand Delineation Report 4 Report File Number 2002 4)1246 Oiyrn is Wedand Resources, Inc. 7/02 I I. dense overhanging shrubs along Hendricks Street near the outflow of the 18 -inch culvertunderHendricksStreet. Water only needs to be present 20 days of the growing season for an area to qualify as awetland. The growing season is defined by the Jefferson County soil survey as March 12 toNovember25. Hydrology must be present for 12.5 % (20 days) of these 258 days. The. growing season is defined by soil temperature at 19.7 inches below the soil surface to behigherthanbiological4 (5° C or 40° F). Ponded water, saturated soils, and water within thetop16inchesofthesoilsurfacewerepresentthroughoutthiswetland. Summary A high quality Class H wetland was delineated on June 24, 2002. This wetland has beenassessedbyPacificRimSoilandWater (1995) and Olympic Wetland Resources, Inc (2000). The wetland edge and 100 buffers were flagged along the south portion ofBlock 7 Montanaaddition. Removal of vegetation is restricted in wetlands and buffers-' The building envelopeforthispropertyisLot8andportionsofLots4, 6, and 7. Final authority over this wetland determination and alterations rests with the City ofportTownsendandtheUSCorpsofEngineers. Sincerely, Dixie Llewellin Principal Biologist, Olympic Wetland Resources, Inc. Certified for Wetland Delineation, 1987 Manual Wetland Training Institute, June 1995 Nance Miller wetland Delineation Report 5ReportFileNumber2002 -01245 Olympic Wetland Resources, Inc. 7102 References Literature Cited Buckingham,_ et al., 1995. Flora of the Olympic Peninsula, Northwest interpretive Association and the Washington Native Plant Society, Seattle, WA. Cooke, Sarah Spear, 1997. A Field Guide to the Common Wetland Punts of Western Washington and Northwest .Oregon- Seattle Audubon Society, Seattle, WA. Cowardin, L.M.V_ Carter, F.C.Gobiet, and E.T. LaRoe, 1979. Classification of Wetland and Deep Water Habitats of the U.S_ U. S. Fish and Wildlife Service, Washington, DC. Hitchcock and Conquest, 1973. Flora of the Pacific Northwest. Federal interagency Committee for Wetland Delineation, 1987. Federal Manual for Identifying and Delineating Jurisdictional Wetlands. July 1994 update. U.S. Army Corp of Engineers, U.S. Environmental Protection Agency, U.S. Fish and Wildlife Service, and U.S.D.A. Soil Conservation Service. Leonard, William P., 1993. Amphibians of Washington and Oregon. Seattle Audubon Series. MacBeth, Div. of Kollmorgen instruments Corp., 1992. Munsell Soil Color Charts. Mitsch and Gosselink., 1993. Wetlands. Pojar, Mackinnon, 1994. Plants of the Pacific Northwest Coast. Port Townsend, City of, November, 1992. Sensitive areas ordinance. City of Port Townsend. Port Townsend, City of, November, 1995. Wetlands Inventory. Sheldon & Associates. Reed, Porter, 1988. National List of Plant Species that Occur in Wetlands, Region 9. 1993 update. Washington State Wetland Department of Ecology, March, 1997. Washington State Wetland Identification and Delineation Manual, #96 -94. U.S. Department of Agriculture, 1994. Keys to Soil Taxonomy. Pocahontas Press. U.S. Department of Agriculture, Soil Conservation Service, 1975. Soil Survey of Jefferson County. Appendix Map #1 Location and Soils Map Map #2 City of Port Townsend Wetland Map Map #3 Findings Map U.S. Army Corps of Engineers Wetland Data Sheets y Nom. 4 ytaT i f i :! •u J. DATA FORM l Routine Wetland Determination WA State Wetland Delineation Manual or 1987 CorPs Wetland Delineatinn Mannan ST2 1'f- Applicant/owner: N A,,,VC%f J-A+ LL,=— IZ Investigator(s): Do Normal Circumstances exist on the site? Is the site significantly disturbed (atypical situation)? yesIstheareaatentialProblemArea? VEGETATION es Dominant Plant NU 13115 S HYDROPHYT>EC VEGETATION INDICATORS: of dominants OBL, FACW, & FAC: no Indicator Dominant Plant IG ac Date: 17—¢IDZ County: JIEFFFE- F State: %,n.lAN,. S(r/R: S 3 -F 31AI Community ID: Transect ID: Plot ID: D P*i ies Stratum Indicator L k all indic onal knowledge of plant communsties Wetland plant list (nat'I or regional) ological ar reproductive adaptations 4_ Morphological adaptationsnicalLiteratureWetlandPlantDataBase_ Hydrophytic vegetation present? (Zo? noRationalefordecision/Remarks: bwW-0 1 =d2riS nloke-a'i HYDROLOGY n it the growing season? no Water Marks: es no Sedil3d OTHER ase on. f-W jylh o men4 L,r ,us: es noDriftLines: es no Drainage Patterns: es noDept. of inundation: 1 i nl_ inches Depth to free water in pit: i `f-~ inches De th to saturated soil: C inches Check all that apply & explain below: Stream. Lake or gage data: Aerial ho[oQra hs: 0 Wetland hydrology present? Rationale for decision/Remarks: Pa+t7U':) WAi -LYL A b2-P no Oxidized Root (live roots) Channels t12 in, Yes no FAC Neutral: yes no Other: Local Soil Survey: yes no Water - stained Leaves: yes no DATA FORM 1 Routine Wetland Determination WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual Project/Site: j-JEE7 4L)A( i45 -- Applicantlowner: p4W O4 M invesugatogs): V, ( L~-- I_i_ Do Normal Circumstances exist on the site? < noIsthesitesignificantlydisturbed (atypical situation)? yes Is the area a potential Problem Area? es n VEGETATION Dominant Plant Species Stratum Indicator Dominant HYDROPHYTIC VEGETATION INDICATORS: of dominants OBL, FACW, & FAC: z S v Check all indicators that apply & explain below Regional knowledge ofplant communities Physiological or reproductive adaptations Technical Literature Hydrophytic vegetation present? yes Rationale for decision/Remarks: HYDROLOGY Is it the growing season? ,'es Based on: e 2 _ j Dept. of inundation: t>Nj inches Depth to free water in pit: )<I bN inches Depth to saturated soil: 1'l inches Check all that apply & explain below: Stream, Lake or gage data: Aerj_aI photo a hs: Ir Wetland hydrology present? yes Rationale for decision/Remarks- Date: (p/2g/OZ County: UETrf YLK 111 CIO State: v,/A Srr1R: r>3L I N Community ID: Transect ID: Plot ID: Q P447 Stratum Indicator Wetland plant list (nat'i or regional) X OTHER Morphological adaptations _ C Wedand Plant Data Base 4- no Water Marks: es no Drift Lines: es no Oxidized Root (live roots) Channels <12 in. es no FAC Neutral: yes no 9M Other: Sediment Deposits: yes no Drainage Patterns: yes no Local Soil Survey: yes no Water - stained Leaves: yes no i mow! w *Sa ar SEE IN1i11 f iii r INSE RN! PIL Findings Map Ol mpk Welland Resources, inc Sheridan Street Wetland 50th and Hendricks 856 506 SW Poi iownsen WA 98368 cal: Nancy E. Miller360385 -6432 3823 Seabeck/Holly RD NW i Seabeck, WA 98380 0 a a3 a U s x a N under ks street Montana Addition Block 7 Port Townsend, WA 51 st Street 16 i 2 as b 4 4 leak 2 "=100' Qak #3 July 2002 lob # 2002 - 01246 94' 0 \ \ 100, Bu&r >, 4 a, DP41 MOO 50th Street (only platted) v V Class II Wetland Delineated Wetland Edge June 24, 2002) 100' Buffer From Wetland Edge Q Flagged delineation markers 0 Data Points