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Home My WebLink About2002.09.00 - Wetland Delineation Report 32nd & McClellanI J g^^*{ David Deering 32od and McClellan Street Block 2 Wetland Delineation RePort September 2002 i.) Prepared for: David Deering P.O. Box 257 Point Roberts, rWA 98281 Port Townsend, $[ashington 98368 360 385-6432 dllewell@olympus.net David Deering 32"d and McClellan Street Block 2 Wetland Delineation Report September 2002 Contents Introduction Description of Site Applied Methodolory Washington State Wetlnnd ldcnfifuatian and Dehneation Manual Soils L'egetation Hydrolog, D eterminin g Wetlond E dge s Findings Soik Vegetn:tion Hydrolngt Srmmary References Appendix Sheet #1 Location Map and Soil Survey of Jefferson County Sheet #2 Findings Map Data Forms, Routrne Determination WA State Wetland Delineation Manual David Deering 32"d and McCtellan Street Block 2 Wetland Delineation Report September 2002 Introduction At the request of David Deering a wetland delineation was conducted on Block 2 between Rosecrans and McClellan and 32"d and 33d Streets. Polaris Engineering and Olympic Wetland Resources, Inc initially identified this jurisdiaional wetland during a study of Basin 5 and 9 (May and June 1996 and December 1997). At that time the wetland was rated as a Class II wetland, extending to the north and south. All Class II wetlands have associated 100-foot buffers. Wetland edges along city street right of ways were defined during the 1996 survey but the edges within private properry were not delineated. Rather they were projeAed on the Polaris maps according to ropography lines. The purpose of this delineation is to establish the exaa wetland edge and therefore define potential building envelopes within Block 2. The wetland has been delineated according to the requirements outlined in the Port Townsend Municipal Code, Environmentally Sensitive Area 19.05.1 10 Wetlands. All wetlands within the Crty are zubjec to requirements outlined in this Code, land use restrictions will apply to all future development projects. Description of Site o Description. Block 2, Lots 1-10 o Location: Between Rosecrans and McClellan Streets and 32"d and 33'd Street, Port Townsend, WA (Appendix Map #1. Location Map) . Soils: CmC Clallam gravelly sandy loara (Appendix Map #1: Soils) . Slopes: 0 to T5oh slopes This predominantly flat site slopes towards a manmade ditch which runs north and souttr- dissecting the wetland. This ditch, known as "Addie's ditch" was excavated in 1983 in attempted to drain the zurrounding upland areas. Access to the site is offof 32"d Street to the south which also provides access for the neighboring houses. McClellan is partially cleared; Rosecrans and 33rd Street are undeveloped. Historic alterations of the site include soil excavation and vegetation removal. Deenng Delineation 32nd and McClellan Street 2002-0008400 I Ol'rmpic Wetland Resources. Inc. 9/02 Applied Methodologr The following resources were consulted for this projea: . Polaris Engrneenng Basin Survey 5 and 9 1996 . Clty ofPort Townsend Wetland lnventory (November 1995) . National Wetland Inventory Maps . U.S. Geological Survey Maps . Soil Survey Maps of Jefferson County (U.S. Soil Conservation Service 1975) . Washinglon State Wetland Identification and Delineation Manual . National List of Plant Species Thar Occur In Wetlands: Northwest (Region 9) Washingtnn Stste Wetlnnd Identifuotian and Delineation Manual Fieldwork to deterrnine the actual wetland boundaries was conducted according to the methodolory outlined intheWashington StateWedand Identification and Ildineation Manual-@epartment of Ecolory #9694). Chapter 173-22 ofthe Washington Administrative Code requires that all wetlands within the State ofWashington be delineated using this manual. The methodolory outlined in the WashinEon State W€dend Identification and Ddineation Manual requlres examination ofthe three parameters for a positive wetland det€rmination: hydric soils, hydrophytic vegetation, and hydrolory. For an area to qualify as a jurisdiaional wetland it must have a positive indicator from all tlree parameters. All wetlands identified using this methodology may be federally regulated regardless ofsize. Soik A hydric soil is a soil that forms under conditions of saturatio4 flooding, or ponding lasting long enough during the growing season to result in an anaerobic upper layer. Hydric soils favor the growth and regeneration of hydrophytic vegetation. The indicators for this type of soil include low chrom4 mottles, glef"g and high organic content within the upper 32 inches of the soil profile. Holes were dug on the site and soil colors (including value and chroma) were recorded in the top l6 inches. Soil colors were analyzed using the Munsell Color Charts (1992). Vegetation Wetland plant species must consdnrte greatar than 51% ofthe total vegetation present to meet the qualification as a site dominated by hydrophytrc vegetation. Dominance of plant species is determined by calcularing actual aerial cover within a 3Gfoot radius for trees, a l0-foot radius for shrubs, and a G foot radius for the herbaceous layer at eashdatapoint. Commonly occuning plant species have been rated by the United States Fish andWildlife Service (USFW) Nationd List of Ptant Spocies That Occur in Wetlands: Northwest (Regon 9) as to their frequenry of occurrence in wetlands and non- wetlands. During the fieldworh each species was recorded and glven a rating based on indicator status. Hydrolngt Wetland hydrology is defined in the WashinEon State Wedand ldentification and Ddineation Manual as ''areas that are periodically inundated or have soils saturated to the zurface at some time during the growing seasor' Areas must have seasonally inundated or saturated soil at leas.l2.5oh of Deermg Delineation -12nd and McClellan Strett 2002J)ff)8400 2 Olrmpic Wetland Resources- Inc. 9 102 the growing season. Indicators ofhydrolory include visual observation ofinundation or soil *ar.utioo, *ater-stained leaves, cracking ofthe soil zurface, andlor sediment deposits. Positive signs of hydrolory are often absent during the summer and fall months but can be inferred if there are positive indicators of hydric soil and hydrophytic vegetation' Determining Wetlnnd Edges Wetland edges were determined by esablishing two data points: one within the wetland which contained positive indicators of all three ofthe wetland requirements: soils, hydrology, and vegetatio4 and another data point outside the wetland, where one or all of the requirements were not present- During the dry summer months wetland hydrolory can be assumed when there are positive indicators of soils and piants. Measurements were taken with a Chainman tr hip chain from known survey corners. Findings A wetland edge was identified and flagged on the western edge of Block 2 near Rosecrans Street during the delineation on September 12,2002. This edge roughly parallels the edge of the ditch and fals nearly along the property boundary between Rosecrans Street and Block 2 (Appendix Map #2). Due to past dirching (Addie's ditch and along 32"d Street) and removal of trees and shrubs, the site is supports a mosaic of wetland vegetation outside the delineated edge. Soik Jefferson County Soil Survey (page 40) lists soils on site as CmC Clallam gravelly sandy loam. Clallam soils are not listed as hydric soils on the Jefferson County Area Hydric Soil list (January l99l) yet wetland pockets are often identified within this soil matrix since it is often poorly drained. Soil variation within a listed soil type and changing water regimes alter soils over time and non-wetland soils often support wetlands. Soil colors within the Clallam series are often very close to the chroma 2 or less. If mottles are found they generally indicate soils that have been saturated over a long period of time. Many wetlands in Port Townsend have been identified within the Clallam soil series. Data point #1 (On Rosecrans Street) confirmed the presence of hydric soils; soils were low- chroma rangng from black to a very dark grayish brown with faint yellowish brown mottles. Wetland ""g"tution was dominant at this location. This soil was very dry; it was difficult to dig the 16-inch hole. Data point #2 (OnBlock ZLot 5) is slightly upslope from Data Point #1 and on the other side of a berm of soi1. Here the soil was also dry and hard; colors were similar to Data Point #1 and qualified as hydric (10Y2/2 with mottles lOYR 4/6). Dominant vegetation at this location consists of upland species. It is possible that the wetland once extended across more of this properr,y but due to th" soil mounding the site became dryer and could no longer support wetland species. Soil information for all data points is summarized in the Data Forms (Routine Wetland Determination WA State Wetland Delineation Manual 1997\ in the Appendix' Deerlng Delineation 32"d and McClellan Street 2002-0008400 J Ohrnpic Wetland Resources- lnc. 9 /02 Vegetation The site consists of small trees and shrubs, predominantly native species that are classified as facultative wetland vegetation (FAC re: rose, Scouler's willow, hawthorn, bentgrass). This vegetation fype can be found in both upland and wetland environments but has a greater proUuUitity of growing in a wetland site (660/o probability). When facultative wet wetland or tU[gut. wetland species are identified (FACWOBL re: sedge, reed canarygrass, rush) there is a htgh; probability of standing water at that location. Canadian thistle is present in open areas. Outsidi the delineated edge, pockets of wetland tolerant and dependant vegetation were identified within low lying areas (near McClellan Street and along the ditch along Rosecrans). However, the dominant surrounding vegetation consisted of Douglas' fir and salal, which will not tolerate standing water. This pattern could be caused by the depression left from the removal of large tree roots. Below is a list of plant species found in the upland and wetland portions of the subject parcel. Wetland Plants Scienffic }rleme Common |rfame Status U Plants HerbFACColonial bentgrassAgrosti s capillari s (A. tenui s) HerbOBLSloueh sedgeCqrex obnupta ShrubFACDouglas' hawthornCrqtaesus dousliasii HerbFACWSoft rushJuncus effusus HerbFACFalse lily of the valleyMaianthemum dilqtatum FACW HerbReed canarygrassPhalaris arundinacea FAC ShrubNootka roseRosa nutksna FAC TreeScouler willowSqlix scoulerians ShrubFACWHardhackSpirqea douglasii FACU ShrubService-berryAmelanchier alnifolio NI TreeMadronaArbutus menziesii FACU ShrubDull oregon srapeBerberis nentosia FACU+HerbCanada thistleCircium ctruense FACU ShrubSalalGaultheria shallon ShrubNIOcean-sprayHolodiscus discolor FACU HerbSword fernPolvstichum munitam FACU ShrubTrailinq blackberrvRubus ursinus FACU ShrubElderberrySambucus racemosa FACU ShrubSvmohoricqroos albus Snowberry FACU-TreeHemlockTsusa heterophylla 2002-0008400 32nd and McClellan Street Olrmpic Wetland Resources- lnc. 9/02Deering Delheation 4 Hydrologt Water only needs to be present 20 days of the growing season for an area to qualif' as a wetland. The growing season is defined by the Jefferson County soil survey as March 12 to November 25 Hydiology must be present for l2.5oh (20 days) of these 258 days. The growin-e season is defined by soil temperature at 19.7 inches below the soil surface to be higher than biological 0 (5" C, or 40" F). This delineation was conduaed during the middle of a typically dry summer- Hydrology was not presenr in the soil test pits or Addie's ditch. Hydrology can be assumed dunng t[. O.y season when there are positive indicators of hydric soils and vegetation, especiallv if there are facultative wet wetland or obligate wetland species present. If hydrologv is questionable during the dry surlmer months, a refurn visit may be requested during the early spring growing season. Hydrology for this wetland originates as a lateral flow of stonnwater as it meets the impervious clay layer common within the Clallam series. This water will form ponds in depressions or ditches even if quite shallow. Summary A Class II (previously rated) wetland was delineated on the western boundary of Block 2 on September 12,2002. This wetland will have associated 100-foot buffers. The subject properf-V between Rosecrans and McClellan and 32"d and 33'd Streets will have buffer restrictions on the majorit-v of lots 4,5,6,7 and portions of lots 3 and 8. Potential building envelopes are open on the remaining lots within Block 2 (Lots l,2,g,lo and remainder of lots 3 and 8). Pockets of wetland dependant vegetation were identified outside the delineated edge, these are due to alterations of the site when Addie's ditch was excavated and trees were removed. The majority of vegetation remaining on Block 2 (Douglas' fir and salal) do not tolerated standing water. If there are further questions or planning requirements for this project please do not hesitate to call. Sincerely, Dife Llewellin Principal Biologist, Olympic Wetland Resources, Inc Certified for Wetland Delineation, 1987 Manual. Wetland Training lnstitute, June 1995. Deering Delineation 32"d and McClellan Street 2002-0008400 5 Ollmpic Wetland Resources. Inc. 9/()2 References Literature Cited Buckingham, et al., 1995. Ftora 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 Wedand Plants of Westem Washington and Northwest Orggon. Seattle Audubon Society, Seattle, WA. Cowardin, L.M.V. Carter, F.C.Goblet, and E.T. LaRoe, 1979. Ctassification of Wedand 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 Manud for ldenti$ing and Delineating Jurisdictional Wetlands. July 1994 update. U.S Army Corp of Engineers, U.S. Environmental Protection Agenry, 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 Gosselinh 1993. Wetlands. Pojar, Mackinnoq 1994. Pltnts of the Pacific Northwest Coast. Port Townsend, City o{ November, 1992. Sensitive Areas Ordinance. City of Port Townsend Port Townsend, City of, November, 1995. Weflands Inventory. Sheldon & Associates. Reed, Porter, 1988. Nationd 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 Manud, #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 Sheet # 1 Location Map and Soil Survey of Jefferson County Sheet #2 Findings MaP Data Forms, Routine Determination WA State Delineation Manual U 0lympk lfrtlond lenuno, lm. 856 50fitheet Poll lournrend, lll 98368 360 385{432 z os TOPoI map prlnted on 05/08/02 ftomw L220 Sub Proand "UnHtled. wGsE4 12201 122017'00" z oo )6 *Tff w LB bbdnlosTOFO| SI999 $[d&*rr hdutbr (r*ttopo.aon) lsfhnon Cormh toil lunrw rllo lcf fr ron toufirf, l{uhintlon' As IndicatedhlcLocation and Soil lvlaps David Deering 32nd and McClellan Steet Block 2 Port Townsend, WA rlh lol* 2002- 8400 #l H 6X4 DavidDeering P.O.Box 257 Point Roberts, V/A 98281 Iu $, z o.Dt z daos z cN* z t t hil turvw Pme 40 tm[ 0ollom gtoilh iody loom 0 lo 15 % tlopr 0lympk lhtlcnd Rercutaet, lm. 856 50lhtheet Porl lornrend,Ui 98368 360 385{432 Delineated lVctland Edge September 12,1O0'Buffer BBRD STTECT BhI{D STreeT V V V EiJAJ9J tsFS\ Fi{(El UE.3H )F-q5 <tl lllVr s/rEE F4's)t{rtrioA4 E '.S ^\'a t l,/.sl \ll/!JVTJ*< V V V ) \/ V V Data Point #lj \l\r 2000100 800 As Indicatedltohtillc Findings Map David Deering 32nd and McClellan SffeetBlock 2 Port Townsend. WA lob#: 2002- 8400 sd #2tlial David Deering P.O.Box 257 Point Roberts, WA 98281 rcI6I a4o'n IJo Data Pr int#2 4 2 FEET !! (wA 1987 DATA FORM 1 Routine Wetland Determination State Wetland Manual or Wetland Project/Site: pg;PJNCI W€[+anta IPAZ7 lu^rtlFea,t.D WA Applicanvowner:pAVr1) D@Jn P.o.e57 ?O*q @ffid^ Investigator(s) : D. llAiltsl-Ulc 6 LY ml t LtilgfUblp R. &.t?JE nc oue:1ltzl oz_ tgssTly'QgfgfiDr{. State: tA/A S/T/R: Do Normal Circumstances exist on the site? Is the site significantly disturbed (atypical situation)? Is the area a potential Problem Area? @@ yes no no /,WPP(W .6-0) Communitv ID: Transect ID: DP# I PlotID: T3lN Prur s 3* VEGETATION Dominant Plant Species Stratum Indicator Dominant Plant Species ' Stratum Indicator A4X 5c\uugzlA.nrlr T FAt - RosA Nfn<AdrA S fAc 5P*trL^eA N),Ju*4i S maM P +taUWrtg prttffis,l Ac66 ,. H fu,v L.aP*n< &P(Ufu,t<r+mL HYDROPHYTIC VEGETATION INDICATORS : 7o of dominants OBL, FACW, & FAC: 10070 Wetland plant list (nat'l or regional) Morphological adaptations Wetland Plant Data Base TrYJ K OTHER Physiological or reproductive adaptations Technical Literature Check all indicators that apply & explain below: Regional knowledge of plant communities X no@Hydrophytic vegetation present? Rationale for decision/Remarks : , no Sediment@ Patterns no no no no HYDROLOGY Water Marks: Drift Is it the growing season? Based on Oxidized Root (live roots) Channels <12 in. yes no Local Soil Survey: yes no Depth to free water'in pit: NSE- inches : FtbE inches ' Depth to saturated soil: Nodg- inches Dept. of inundation FAC Neutrirl: yes, no yes no Water-stained ,I.eaves Check all that apply & explain below: Stream, Lake or gage data: Aerial photographs: _Other: Other: Wetland hydrology present? Rationale for decision/Remarks yes 6A C nC C l$l*n c^Uva ,t.+to"1laftrn Drainage Class No su ,| SOILS .: .Field observations conflum lve-lMap Unit Name (Series & Phase) Profile Depth (inches) Horizon Matrix color (Munsell Mottle colors (Munsell, Mottle abundance size & contrast Texture, concretions, structure, etc. o-+toYL4t 6h 4-rr tDYf?"1b pYaslre ftlt\LT Drawing of soil profile (match_descdption) ' t olttilzq wtTl? Ifw+ PtI1- 61n zl I Histosol Histic Epipedon Sulfidic Odor Aquic Moisture Regime Reducing Conditions Concretions High Organic Content in Surface Layer of Sandy Soils Organic Streaking in Sandy Soils Listed pn Local Hydric Soils List Listed on National Hydric Soils List Hydric Soil Indicators: (check all that apply) or Low-Chroma Colors Other 1n no Rationale for decision/Remarks Hydric soils present? no no@ circle() Wetland Is the sampling point within a wetland? Hydrophytic vegetation present? Hydric soils present? F,b@&cfl oftil Pe fficI,IrEP AFTa( A b*'l OP( 1dlnrn rri#\ 100?o ffic ovL tv\tE VqAfrIWl L5 ptus,urT. Rationale/Remarks: NOTES: DATA FORM T Routine Wetland Determination (WA State Wetland Delineation Manual or 1987 Wetland Dalineation Project/Site: pEi;PIlJr{ gUElt--4nttr lPonf TUutFdA WA Applicant/owner: pAV112 D4.tY P. o. 251 PDnrt @a?fr^fl/A Investigator(s): D.llAilH//n 6 Ly tAltLtLEfl.#tD R &J2JB n< oare:1ltzJ oz. 'county: gffc#8oNl State: rA/A S/T/R: Do Normal Circumstances exist on the site? Is the site significantly disturbed (atypical situation)? Is the area a potential Problem Area? @@ yes no no frmrP6ut6D Communitv ID: Transect 16: DP+ 2- Plot ID: TS|N ?rw s 3* VEGETATION Dominant Plant Species ,'Dominant Plant SpdciesStratum Indicator Stratum Indicator SAtlx Sc,ovtHZtfiva T FA<-.]l1/l.Lt tB t4FUstts 11 DT t- PSu0v6utA fiArtzar i T FacU kPgrn< &"ALttflE tt Ffu S \tnftfttLtcAo?a AunA t Fhrl R:;f;ft Noj-u^lA 5 fAc ttouo Dte.os otscu*t 5 ?rcu 7o of dominants OBL, FACW, & FAC: 4Z7t HYDROPITYTIC VBGETATION INDICATORS: t Check all indicators that apply & explain below: Regional knowledle of plant communities X Wetland plant list (nat'l or regional) Morphological adaptations Wetland Plant Data Base K OTHERYPhysiological or reproductive adaptations Technical Literature lffi1hr.{ StL yes /6-\Hydrophytic vegetation present? Rationale for decisionlRemarks: I no Sediment@ Patterns: no no no no I{YDROLOGY Water Marks Drift Lines Is it the growing season? Based on: Oxidized Root (live roots) Channels <12 in. yes no Local Soil Survey: yes noDept. of inundation: Depth to free water in pit: Depth to saturated soil: A0orlb inches I'touF inches t'LU/€._inches FAC Neutral: yes no yes no Water-stained Leaves: Check all that apply & explain below: Stream, Lake or gage data: Aerial photographs:Other: Other: Wetland hydrology present? Rationale for decision/Remarks yes p C nC C Ultl^ ,ouv , ntryot t^ffirt^ Drainage class Field observations confirm No@ I SOILS Map Unit Name (Series & Phase) Profile Descri Depth (inches) . Matrix color (Munsell Mottle colors (Munsell, Mottle abundance size &.contrast Texture, concrctions, Structure, etc. o-tl toYA,b tolrz+lu slc ll- Drawing of soil profile (match description) p1ailz H*agz Concretions High Organic Content in Surface Layer of Sandy SoilsOrganic Streaking in Sandy Soils Listed.on Local Hydric Soils List Listed on National Hydric Soils List Hydric all that applv) ColorsorLow{hroma Other Soil Indicators: (check Histosol Histic Epipedon Sulfidic Odor Aquic Moisrure Regime ln noHydric soils Rationale for present? (fr> decision/Remartsl- @ yes @ @ no v:' (circle) Wetland Is the sampling point within a wetland? Hydrophytic vegetation present? Hydric soils present? tl NOTES: