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Home My WebLink AboutWetland Del & Buffer Enhancement Plan 940500006 20 Y\J 04'" 2.7 YflL A OQ: ~ 24i Terry Steben Wetland Delineation and Buffer Enhancement Report Parcel # 940 500 006 and 940 500 007 April 2004 Prepared for: Terry Steben 6S Huckleberry Place Port Townsend, WA 98368 - -- --... :-~If~ i<: ' ., ~ ~; IJ'!!~ MAY - 3 200~ '._ll". '. , r"pl0FC'j\" . .EvE.....OPtvlbl . .......,.;:.....:...-. _:..:' 1....\..:.--=--.- .... ._ _~ 360 385..6432 dixie@cablespeed.com Terry Steben Wetland Delineation And Buffer Enhancement Report Parcel # 940 500 006 and 940500007 April 2004 Contents Introduction Description of Site Applied Methodology Washington State Wetland Identification and Delineation Manual Soils Vegetation Hydrology Classification Determining Wetland Edges Jefferson County Unified Development Code Wetland Buffer Definition Standard Buffer Requirements Reducing Buffer Widths Findings Soils Vegetation Hydrology Buffer Enhancement Plan Stormwater Control Summary References r~! ~y~ ~ ~04~~ ! . . ;:'CPT. OF ClJ\ r:.:.. . _.EvEl..OP~Il-1 . Appendix Sheet # 1 Location Map and Soil Survey of Jefferson County, Washington Sheet #2 Findings Map Sheet #3 Buffer Enhancement Plan with Reduced Buffer Wetlands Rating Field Data Form Data Forms, Routine Determination W A State Wetland Delineation Manual Table # 1 Plant List and Landscape Specifications Table #2 Re-seeding Recommendations and Quantities Installation Specifications and Recommendations Terry Steben Wetland Delineation And Buffer Enhancement Report Parcel # 940 500 006 and 940500007 April 2004 Introduction At the request of Terry Steben a wetland delineation was conducted on April 13, 2004. A Level I Assessment was conducted on March 22, 2004 prior to the purchase of the parcel to confirm the presence of wetlands not mapped on the Jefferson County Critical Areas maps. A Type 5 Stream has been mapped and is shown crossing the property. This mapping is in error, as the stream is actually located off-site within a ravine designated as a park by the Cape George Community. The stream will have an associated 50-foot buffer, which falls entirely within the public park land. The goal of this wetland delineation was to determine wetland locations and associated buffers that would restrict a building site location. All wetlands within Jefferson County are subject to requirements outlined in the Jefferson County Unified Development Code (UDC) dated January 1,2001. Land use restrictions will apply to all future developments associated with this parcel. Description of Site . Legal Description: Parcel # 940 500 006 and 940 500 007 Section 13, Township 30, Range 2W W.M. .900 Acres . Location: Cape George Village #3, Dennis Street, right on Marine View Avenue (Appendix Sheet # 1 : Location Map) . Soils: CmC Clallam sandy gravelly loam (Appendix Sheet # 1: Soil Map) . Slopes: 65% to 15% slopes (as recorded in the field) The subject property is adjacent to a steep ravine, which contains a Type 5 Stream with an associated 50-foot buffer. Field measurements reveal that the parcel boundaries fall outside all buffer restrictions (April 13, 2004). Located on the parcel is a Class II wetland, with 100-foot buffers, that lies within a distinct swale on the southern portions of Lots 6 and 7. There is an elevation gain of 27 feet from the stream bank and an elevation gain of about 7 feet from the wetland to a proposed building location. The rolling topography of this property is forested with large alders, maples, and cedars, with a healthy understory of native shrubs. Access to the proposed building site, which is on the northwest portion of Lot 7, is across the wetland on an existing road. The onsite wetland is along the southern portions of Lots 6 and 7 adjacent to the cul-de-sac of Marine View Ave. Steben Wetland Delineation and Buffer Enhancement Report File Number 2004-8642 1 o' __'__, \~I~ :y ~- ~ '~;~-,~:, U t Olympic Wetla d Res~urces, Inc. 4/04 OF C. , c"r' OP~Jil.1 ._ ~t~ .:!:; <:.":"::':: -' - . Applied Methodology The following resources were consulted for this project: . Jefferson County Critical Areas Map Wetlands (1995) and ESA Maps (Stream and Wetlands) · Aerial Photographs (Soil maps pre-1975, and 2000, included in Appendix) r-.~ D' lE~ rr:' IJ "r ~'~~--: . Jefferson County Unified Development Code (January 1,2001) r- . " ---=--.: I l' . Soil Survey of Jefferson County (U.S. Soil Conservation Service 1975) n . : I :' . National Wetland Inventory Map I L! II MAY - 3 2004 '....... . Washington State Wetland Identification and Delineation Manual l. · National List of Plant Species That Occur in Wetlands: Northwest (Region 9) __ ~~Pl OF C5!~~'>:~_ ~~r:'.opr;t: I Washington State Wetland Identification 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 Manual (Department of Ecology #96-94). Chapter 173-22 of the Washington Administrative Code requires that all wetlands within the State of Washington 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: hydric soils, hydrophytic vegetation, and hydrology. For an area to qualify as ajurisdictional wetland it must have a positive indicator from all three parameters. All wetlands identified using this methodology may be federally regulated, regardless of size. Soils A hydric soil is a soil that forms under conditions of saturation, 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 chroma, mottles, gleying, 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 16 inches. Soil colors were analyzed using the Munsell Color Charts (1992). Vegetation Wetland plant species must constitute greater than 51 % of the total vegetation present to meet the qualification as a site dominated by hydrophytic vegetation. Dominance of plant species is determined by calculating actual aerial cover within a 30-foot radius for trees, a 10-foot radius for shrubs, and a 6-foot radius for the herbaceous layer at each data point. Commonly occurring plant species have been rated by the United States Fish and Wildlife Service (USFW) National List of Plant Species That Occur in Wetlands: Northwest (Region 9) as to their frequency of occurrence in wetlands and non-wetlands. During the fieldwork, each species was recorded and given a rating based on indicator status and percent cover. Hydrology Wetland hydrology is defined in the Washington State Wetland Identification and Delineation Manual as "areas that are periodically inundated or have soils saturated to the surface at some time during the growing season." 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 saturation, water-stained leaves, cracking of the soil surface, and/or sediment deposits. Positive Steben Wetland Delineation and Buffer Enhancement Report File Number 2004-8642 2 Olympic Wetland Resources, Inc. 4/04 signs of hydrology are often absent during the summer and fall months but can be inferred if there are positive indicators of hydric soil and hydrophytic vegetation. Classification Wetland categorization was detennined using the Washington State Department of Ecology (DOE) Wetland Rating System (publication #93-74, August 1993), which assigns a numerical value to any given wetland accorfling to wetland size, quality of surrounding buffers, vegetation diversity, wetland types, and habitat value. Wetlands are rated as entire systems and quite often exceed project boundaries. Ratings range from Class I to Class IV; Class I is the highest quality wetland and is not replaceable and therefore receives the largest buffers and highest protection. Determining Wetland Edges Wetland edges were determined by establishing two data points: one within the wetland which contains positive indicators of all three of the wetland requirements: soils, hydrology, and vegetation, and another data point outside the wetland, where one or all of the requirements were not present. Measurements were taken with a Chainman II hip chain. Jefferson County Unified Development Code (January 2001) Wetland Buffer Definition Section 3.6.9 (2): A designated area adjacent to a wetland that protects, and is integral to the wetland ecosystem. Buffers provide shading, input of organic debris, and coarse sediment, room for variation in the stream or wetland boundaries, habitat to wildlife, and protection from harmful intrusion necessary to protect the public from losses suffered when the functions and values of aquatic resources are degraded. Standard Buffer Requirements 3.6.9 (5 Hi): Buffers shall remain naturally vegetated except where the vegetation has been disturbed, invaded by highly undesirable species, or would substantially benefit from the increased diversity of introduced (native) species. Where buffer disturbance has occurred during construction, replanting with native vegetation shall be required. Minor pruning of vegetation to enhance views and removal of undesirable species (e.g. alders) may be permitted by the Director on a case-by- case basis. Reducing Buffer Widths 3.6.9 (6): The Administrator may reduce the standard wetland buffer width, when the project applicant demonstrates both of the following to the satisfaction of the Administrator: i. Standard wetland buffer width averaging as set forth in this section is unfeasible. 11. The project application includes a buffer enhancement plan using naJiye__ .. - --'--, vegetation, which substantiates that an .nhanced buffer will il~~ ~ · · r iE_c~, , r, \ MAY - 3 2004_,_' Steben Wetland Delineation and Buffer Enhancement 3 Olympic Wetland Resour s, lnc~ 4/04 Report File Number 2004-8642 l . . , "i:>' ~ OPty,l' . f ';:Pl Of CJ\.r';.;... · _....~E.\... -'. ....- ----=--. --.'- ....- -..-.-. functional attributes of the buffer to provide additional protection for the functions and values. Findings The Jefferson County Critical Areas Map does not indicate the presence of wetlands on site. A Class II wetland (29 points) was delineated during this assessment, measuring approximately 400 feet in length and varying in width from 10 to 90 feet. This Class II wetland will have associated 100-foot buffers measured perpendicular from the delineated edge (Jefferson County Unified Development Code, Jan. 1,2001,3-30 Buffers Table 3-4). The wetland lies within an open swale that is defined by a distinct drop in topography. This wetland receives stormwater from upslope properties in addition to water that is directed to the wetland via a ditch and culvert along Marine View Avenue. Wetland vegetation requiring year- round water was identified in this wetland (horsetails and water parsley). The driveway to access the upland portions of the site appears to act as a berm. The widest part of the wetland is above the access driveway, which appears to hold water since there is no culvert. The wetland below the drive narrows to fewer than 20 feet. Only the north edge of the wetland was delineated; the southern edge coincides with the property boundaries. The wetland appears to terminate in a distinct channel that eventually joins the Type 5 Stream. At this point, water is diverted through a 24-inch buried pipe with an outlet on the beach along Discovery Bay. All wetlands and drainage corridors were flagged with orange plastic ribbon labeled "Wetland Boundary," tied to vegetation along the drainage ditch at points 20 feet apart. The wetland edge is contiguous with the drop in topography and distinct vegetation change. Flagging is labeled with alphanumeric codes (AI through All). These data point locations, wetland edges, and buffers are indicated on the Findings Map in the Appendix (Sheet #2). Soils Jefferson County Soil Survey (page 41) lists soils on site as CmC Clallam sandy gravelly loam. This soil is not classified as a hydric soil on the Jefferson County Area Hydric Soil list (January 1991). However, wetlands have been recorded throughout Jefferson County in this soil type. Wetlands often occur in the Clallam soil type since the clay layer is near the surface and water will accumulate when there is soil disturbance or there is a distinct depression. Even though the soils are not classified as hydric, data points and soil test pits confirmed the presence of hydric soils in the wetland. The soils were low-chroma the entire depth of the soil test, indicating frequent saturation and a rising water table. At Data Point #2 soil colors were black (l0YR2/1 to 16 inches). At Data Point #1, upslope and to the north of Data Point #2, soils were not hydric. Several 6-foot deep perk holes were dug on site; most holes revealed that the soils consisted of sand to sandy loam the entire depth. This soil is extremely well drained and did not indicate a regular rising water table (lOYR 3/3 to 10YR 4/4). Steben Wetland Delineation and Buffer Enhancement Report File Number 2004-8642 4 .. --.--, r=F~~re ~".r ~ ~J': \Q< lb -~:i \\ II r ",'- V - 3 2004 :,.L~ I " MAl Olympic Wetland RdoonJes, Inc. 4/04 \ L : .:Pl OF Cj\ : ;.:. . .r':~E~OP~l', I I _'" ._ . Vegetation The site contains a high diversity of plant species; below is a list of vegetation identified, along with the indicator status for each species. Scientific Name Common Name Status Layer Wetland Plants F AC Tree F AC Herb FAC Sed e OBL Sed e FAC Herb OBL Herb FACW- Herb F AC+ Shrub F AC+ Shrub F AC Tree FAC+ Herb FACU FACU FACU+ NI NI FACU FACU FACU FACU FACU NI Tree Tree Herb Herb Shrub Shrub Herb Tree Shrub Shrub Herb ,,-- ~ - . -. ----, ~J ~ \<: : "r ~-,rm: rJ MAY - 3 2004 I.~:' UPL Upland Species, FACU Facultative Upland Species/Non Wetland, FAC Facultative Species, FACW Facultative Wetland Species, OBL Obligate Wetland Species, NI No Indicator Assigned The qualifier of + or - further defmes the status of the species. Plants classified according to the Fish and Wildlife Service, 1988,1993 Update ._~t.Pl OF Cl:r;-:,.:....:.. _.f~ELOp~,b~. Hydrology Water only needs to be present 20 days of the growing season for an area to qualify as a wetland. The growing season is defined by the Jefferson County soil survey as March 12 to November 25. Hydrology must be present for 12.5% (20 days) of these 258 days. The growing season is also defined by soil temperature at 19.7 inches below the soil surface being higher than biological 0 (50C or 400F). Daytime temperatures were in the high 50's during this fieldwork; thus this delineation was conducted during the growing season. Hydrology was present only in the form of soil saturation in the soil test pits within the wetland. Ongoing drought conditions for the past 4 years are causing wetlands to appear dry. When there Steben Wetland Delineation and Buffer Enhancement Report File Number 2004-8642 Olympic Wetland Resources, Inc. 4/04 5 ~rDJ.. -fE fi~;-~ ' "' .~ 71\: ~,I'~AY - 3 2004--::Q, are positive indicators in both soils and vegetation (especially obligate Vegetati~n likF water. . parsley and sedges) wetlands can be verified during dry seasons. ;":PT. OF CJ" I~_'., , .:::IILOP~IL.';f . ~.. ....- ....... .---.. ,... Buffer Enhancement Plan The primary goal of this buffer enhancement plan is to minimize buffer impacts by planting appropriate native trees and shrubs to create sufficient separation between the building and the wetland. The buffer will be reduced from the required 100- foot buffer to 35 feet near the building site. The remainder of the buffer not associated with the building and septic site should remain in its natural condition. Trees and shrubs that are currently found on site should be protected during the construction and revegetation process. Secondary goals for this plan include increasing plant species diversity, thereby increasing habitat value for wildlife. The buffer to be enhanced is an area of approximately 2,500 square feet and is located along the 6-degree slope between the home site and the wetland edge. After the construction project is complete all disturbed areas will be planted in native trees and shrubs, as recommended in the plan. The planting plan includes vine maple, cedar, hazelnut, red-flowering currant, and Oregon grape (Appendix Sheet #3). Complete landscape specifications are listed, including quantities, sizes, optimum locations, and spacing for each plant. All remaining bare areas should be re- seeded with the seed mix included in the recommendations (Appendix Table #1 and Table #2). Plantings may be rearranged to suit landscape and aesthetic choices. Also included in the Appendix (Table #1 and Table #2) is a directory of local nurseries, which supply native plants, and this report's Installation Specifications and Recommendations. It is critical for the success of any newly planted trees and shrubs to be maintained for the first two to three years. Maintenance includes watering and weeding and replacement of plant material that does not survive after the initial planting. Stormwater Control All stormwater from the house and garage will be directed away from the ravine and stream. Sediment or runoff during the construction of the structure should be minimized with the use of straw bales or sediment fences. This will be required during the entire building process and will continue to be required until the vegetation becomes established and can act as a natural filter. A gravel base will be placed on driveways and parking areas. Summary A Class II wetland not indicated on the Jefferson County Critical Areas Maps was delineated on April 13, 2004. The wetland is confined to a drainage swale and roughly parallels the southern boundary of the two parcels (Lots 6 and 7) within Cape George. The on-site wetland is from 10 to 90 feet wide and approximately 400 feet long, eventually joining the off-site Type 5 Stream. This wetland will have associated 100-foot buffers measured perpendicular from all wetland edges. The majority of his parcel falls within the 100-foot wetland buffer; therefore a buffer reduction will be required. This delineation report includes a buffer enhancement plan to minimize construction impacts, increase species diversity, and create sufficient separation between the Steben Wetland Delineation and Buffer Enhancement Report File Number 2004-8642 6 Olympic Wetland Resources, Inc. 4/04 wetland and the building site. The buffer enhancement will further protect the Class II wetland and ensure the long-term function and values of the buffer. After the construction project is completed, 12 trees, 16 shrubs, and a native seed cover will be planted, as specified in the plan. All bare areas should be covered with straw until the native vegetation becomes established, in order to prevent sediment or runoff. To verify compliance with this planting plan, the project will be inspected for approval during the final inspection. The final authority over this wetland determination, buffer reduction, and buffer enhancement plan rests with the Jefferson County Department of Community Development; restrictions will apply to any development near the wetlands or buffers associated with this parcel. If there are further questions or planning requirements for this project please do not hesitate to call. ~ Dixie Llewellin Principal Biologist, Olympic Wetland Resources, Inc. Certified for Wetland Delineation, 1987 Manual. Wetland Training Institute, June 1995. -' --.,--; r-: ----re ~fe 11 "f ~ ~'I \~i~:Y _ ~ :-'\U\, ,U \ \ ~:::P1. Of C'J\ ;; . .a.. ....---- -.. c',t:' Optvll ," , ....\...\i t..._ ." '__-0"' Steben Wetland Delineation and Buffer Enhancement Report File Number 2004-8642 7 Olympic Wetland Resources, Inc. 4/04 References Buckingham, et al., 1995. Flora of the Olympic Peninsula. Northwest Interpretive Association and the Washington Native Plant Society, Seattle, Wash. Cooke, Sarah Spear, 1997. A Field Guide to the Common Wetland Plants of Western Washington and Northwest Oregon. Seattle Audubon Society, Seattle, Wash. Cowardin, L.M.V. Carter, F.C.Goblet, and E.T. LaRoe, 1979. Classification of Wetland and Deep Water Habitats ofthe U.S. U. S. Fish and Wildlife Service, Washington, D.C. 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 Corps of Engineers, U.S. Environmental Protection Agency, U.S. Fish and Wildlife Service, and U.S.D.A. Soil Conservation Service. Jefferson County Unified Development Code. January 2001. 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. 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 . rW~-ie~ Ll 1\ MAY - 3 -. --.--, {\ r ~ r;;'\' -=~" , : n \' 2004 ' l!~' . ;"t:Pl OF CI \ F ~_or)ftl ~~ _! .~'i., '\,~ f. Olympic Wetland Resources, In \ Ii ~':. \\ \!ii d 856 50th Street ~~~;~.~')~ ' Port Townsend,WA 98368 ":~f 360 385-6432 \\ r Titte: Location and Soils Maps Scole: Sheet Parcel # 940 500 0060&7 April 2004 #1 (tllnt: Terry Steben 65 Huckleberry Place Job #: 2004-8642 Port Townsend, WA 98368 TOPO! map printed on 01/30/03 from II Puget. tpOIl and "Untitled. tpgtl 122050'00" W WGS84 122046100" W r'l"i 1.7i ~ :.... '',C IIV', II"" iU'- ~.~<.e"l . _ r~'f': "- ~, ''''~ :"'iit: ::oIOi. -.... < :t ..., .....Q 1. r ..J,t ..:."1...;' . ,", ..... ;~ (:'::''':':''i' ~ ',1. ..... ..,..t.: ~.-.;I c.... .1 ...... .... . I ... _ .... {c.- > f,' }>'..;.: ~:~ [.~.~~ :~l.< .:,}..:>,., t "";.,: f'. r- l\ r r 'J:'J ~~I"'.~ ;~~< t?::. Lr.~~ ~~ , .~ . ';~:. ~~-- ~ ~"Y ~.' ~I..ri....'~ .... . ". \,2 .'" . Oil Z ~j~,2J.l I., ~ ..,' '. ~ ~ _.' , ::.", ~-.i __ 7 ~ . ~"""t :tlt71 o u..ri.T o ;, ~ ~.n' .."\ ~5" z' rI .~ ....~..~ ; ~"/f'>' .~{ = o o m o o m V "!.~ ':1 :< ~5.~ z o o io o o CD V Subject Property u~~ -l yr :;. Am .. --? ~~ ~ '.. (.> '". 2 o o \0 o o m v p ~'.. ~ ~:.r '/ "':ij' ,) ,., ii, .....~ ~t..< ~,,,. · r+ ~!A 'f/ z _~~~: ~ . i.; .~. ~.. '.._, z =' '- '{II '., ,~. .~, ".~ ~ 0 g ~~;'ll'/>:" ".,. 1 '"W! 0 g-~~~~'l <~ I: ...... \.:'l ..~ ~ "", g ~ =~:::Ib~. lr] ~.:~ :.~ '~~4 ~~..........;jf '~j.f;: ~ 122050'00" W WGS84 122046'00" W TNj ~~ ~...I." I, i' I, J. "~..d,,, 1'3,L I.., l" I, .15.1." I. ,,~...1.~; km V · Printed from TOPO! @1999 Wildflower Productiollll (www.topo.com) . . .-' - ,,-' - -., rr~.-O- -- Ie , (~ - ~... II t'.r ~ ~. D :. Jefferson Co. unty Soil Surye. y Map ~_.' .. '._..,~; \ ". Jefferson County, Washmgton · ; ,I 1975 I n \ MAY - 3 2004. L, Soil Survey Page 41 I II \- ~.' -..-' J CmC Clallam gravelly sandy loam I . I t. .' , . '" .' '" '... r ~P1 Of CJ\f!", ~"I .. 1 ..:E'~EL..oPrv,L:~'.'. ; ~':: ~. : .- - '. . ... -- ............. .... . rille: Findings Maps Salle: Sheet Olympic Wetland Resources, Inc. Parcel #940 500060 1"=50' 856 50th Street #940500007 Port ilwnsend, WA 98368 ctJellt: April 2004 #2 Terry Steben 360 385.6432 65 Huckleberry Place Joh #: 2004-8642 Port Townsend, WA 98368 Stream Mapped on Jefferson Coun1y Maps ~~rl B7 ;-~'D"'lf~~' j ~.f,.~' ~': r-- ' ," .-' ;:i~ \ \ . n ,. , : I I IU [I i MAYI- 3 2004 _ l~,: __ ~'PI OF Ol" " .:. _E~ E:Oo,,[, I · ~ DP#2 . 'f ~~\{v ~ ~"f ~~ 100' Buffer ~ Access Cull-de-Sac All wetland locations and sizes are approximate, to establish exact points a formal survey is required Delineated Wetland Edge 100' Buffer From Wetland Edge . Flagged delineation markers . Data Points rifle: Buffer Enhancement Plan Scole: 1"=25 Sheet Olympic Wetland Resources, In And Reduced Buffer Proposal Parcel # 940 500 0060&7 #3 856 50th Street April 2004 Port Townsend, WA 98368 ctJeRt: Terry Steben 360 385-6432 65 Huckleberry Place Job#: 2004-8642 .~ ;.: Port Townsend, WA 98368 Buffer Enhancement Location ~ ~ Reduced Buffer (to -35 feet) v ~ V~~ V ~V Marine View Cui-de Sac V t. Hazelnut (5) t . , Vme Maple (3) ., Red-flowering Currant (6) Cedar (4) Oregon Grape (10) Delineated Wetland Edge Adjusted Buffer ..' - -'--, ;-~-Y"~~ ~ ~:r I~ ij: \. n ! MAV _ 3 2004-: j lJ: " IU I, ,I ...__ l. . Appendix Sheet #1 Location Map and Soil Survey Of Jefferson COWlty Of Washington Sheet #2 Findings Map Sheet #3 Buffer Enhancement Plan with Reduced Buffer Wetlands Rating Field Data Form Data Forms, Routine Determination W A State Wetland Delineation Manual Table #1 Plant List and Landscape Specifications Table #2 Re-seeding Recommendations and Quantities Installation Specifications and Recommendations -.-..' -'-----, rrm, '. IE If. If: : or ~ r;:;'\, ; IR~~ - .,~I f,\ MAY - 3 2004 t ~tPl OF CJ\ :" ..'" . _,f.\'F_OP~"I;_' I .. Wetlands Rating Field Data Fonn Background information: ()l..t.1m PtL NamcofRaler: 0./ /~1 LJ..I AftiIladoa:~~ '/r..z.{rA- Name ofwdaod (lfblowD): GoYemmc:atJurJsdlc:doaofwalaDd: JcFFtil5~ /'/),)"'T'1 r~ a=/aV'tJ~fJ$ ,(. , LocaIioD: IJ4 ScctIoa: _ of U4 $: _ SeclIoa: 1.3- TowIIsbIp: ~ Range: Z,}J,l Sources of Infonn8IIon: (Check 81. SO!Jrcea that eppIy) Sitnlsit: 1-USOSn.;oMap: ..2SNWlIIIIp: --':"'AaIaIPboto:~SoI1ssurvey: x. Otber:X- Desaibe: ~&..\ caT1utt ~ f1Af05 WheIl Tbe ReId DaIa form Isc:omplefe'eaIa'Catqory~ [K] 2 q fD(NU , Q.1. HIgh Quality NaluraJ WeUand Ckde Answers Answer Ibis quesdoa 1f)'Qll bne IIdequate ilIformaIIoa or apedcace to do so. If DOt IiDd _ wIlb 1be CllpCitiIe to uswer1beqaesdoas. 11a.lf1be lIDSWeCto queIIioas II, Iblllld Ie _Ill NO. COIIIiICl1beNmnI HedlIge prognmofDNR. ' lL~__~ - Is lIIcae~eWlelaof"""~ ~'to1OpOplplyor hydrology of1be wc.cI..s. ~ by Illy of 1be IbIIowID& COIdlIoaI? CoasIdc:c 0IIIy c:IuaIps lbIt mayllaft IItza pIIce ilI1be... S decIdeI. Tbe impacts of dID&a daae edcr ~JlI'llbIIlIy beca IlIIIlIbed lIIId 1be 'ftCllIIId ocosystaIl wDI be dole to aac:biDg IOIIIe _ eqai1IxIum tbat may &qIIaeat a high quIl1ty -'-1 , lat. Upslram WIfenIIed > 121& ImpcrvIoas. Yes: go to Q2 1a2. WedaIId Is dI1icbcd ad _ flow Is DOt obslnIcIed Yes: go to Q2 1a3. WedaIId bas beca paded. filled. Joaed. Yes: go to Q2 1a4. W"iD wdaodls ~ by cIlta. wars. ClC. Yes: go to Q2 laS. WedaIId Is gnzed. Yes: go to Q2 I a6. Olber iDdIc:-.s of cIisludIace (1jst below) ~'O~ No: go to lb. 2a.3. Is !be .egetaIioD alllixluft: of oaly bedIaceous pIaDts lIIId Sphapum mosses with 110 scnabI1Iwb or forated classes? Is !be area ofhcrbace.s plants, Spbagnum, lIIId deep 0IpIlic . soils > 112 acre? - Is !be area ofhcrbace.s p1ants, Spbagnum, 8DcI deep orpnic soils Y...112 eae? YES: Category I YES: Category U NO: Go to 0.3. Q.2b. Matve r.re.ted wetIaad. " 2b. L Does SO% of !be _ of upper forest canopy consist of evergreen trees older ""'" 80 ,ears oe decicIuous bees older ""'" SO years? N_: The sim of_ is often DOt a __ of age, ond size_ be used as a surrogate for age (see guidance). 2b.2. Does SO% of!be _ of fon:st canopy consist of evergreen _ older than SO years, AND is !be structural di~ty of !be forest high as charac:terized by ....dditiooallayerof_ 20'-49' talI. shrubs 6'- 20'. tall. IDd a herbaceous gn>undcover? YES: Category I NO: Go to 2b.2 YES: Go to lb.3 NO: Go to Q.3 2b.3. Does < 25% of !be an:aI cover ill !be beIbaceousIgroundco_ oe !be shrub laver consist of iII_ivelcxolic DIant soecies from lhc list 011 p. 191 Q.2c. EstuariH wedaads. YES: Category I NO: Go to 0.3 2c.I. Is !be wctIaud listed as National Wildlife Refuge, National Park, National Esbwy Reserve. Natural Area Ptaerve, State Padt, or EducatiooaI. Ea~ or Scientific Reserves designated UIIcIer WAC 332-30-15I? YES: Category I NO: Go to 2e.2 2c.2.1s!be wetIancI > 5 acres; ......................................................... YES: Category I N_: If aa ..... contains patches of sak lolerant veget&lion thaI are I) less ""'" 600 feet apart IDd that In: scp8l'lIted by mudflats that go dry 011 . Mean Low Tide, oe 2) separated by tidaI channels that In: less than 100 feet wide; all !be vegetated aras are to be consiclcred together in calculating !be wctIaud area. or is !be wetllDd 1.5 acn:s; ......................................................... YES: Go 10 2c.3 or is !be wetland < I acre? .......................................................... YES: Go 10 2c.4 Ib Ale then: populations of non.....live plaDlS which are curraatly present. cover YES: go tD Q.2 more lban 10% of!be wetland, and appear to be illvaditt& IIIlive populations? No: go to Ie. Briefly describe any lIOn-native plant popuJations 8DcI IafonnatiOll ~s): Ie. Is then: evidence ofbwnan-ausec1 disturbaaces which bave visibly clcgr.IdecIwater quality. Evidence of the c1epdatiOD of water quality include: direct (untrated) nmotr from roads or parIdnc Iols; pcaeace. oe historic evidcnc:e. of wasti'C1Wnps; Oily sheeM; !be smell of 0IpIlic cbanicals; or livestock use. B~ describe; f) _ . I r; IaJfDbj)n;. (Jl= rrr>T .t')q'"1'M1 Q.2.1rnpI_ble EcoIoglcaI FunctIona: Does !be MllancI: have at 1east 1/4 acre of orpnic: soi1s c1eepcr ""'" 16 iDches IDd !be wctIaud is ~latively undistudlecI; OR [If !be answer is NO because !be wctIaud is disturbed briefly clescribe: IDdicators of disturbance may include: - Wetland bas been graded, fil1ed, 1oggecI; . - Orpnic soils on lhc surface are dried-oul for more ""'" balf of the year; - Wetland RlCeives direct stonnwater nmotr fiDm urban or agricultural areas.]; OR have a forated class grater ""'" I eae; OR have c:baractcristics of aD estuarine system; OR have IIleI oe __ beds? %a.1lop uti F_ Ate Illy of!be t1uee following conditioas DId tot the area of 0IpIlic aoi1? 2&.1. Ale Spbapum. mosses. _ JRlIBl-(>3O%) aad the_of invasive species (see Table 3) is less than IO%? Is the area of sphagnum mosses and deep cqanic soils > 112 aae? Is !be area ofspltagnum mosses 8DcI deep 0IpIlic ~Is Y..112 acre? 2a.2. Is then: aD area of organic soil which bas aD etneIgCIIl class with a11east one species fiom Table 2, IDd cover of invasive species is < 10% (see Table 3)? Is the area ofhetbaceous pIants 8DcI deep 0IpIlic soils > 112 acre? Is the area ofherbaccous plants ad deep orpnic soils 114-112acn:? 2c.3. Does the wetIancI meet at 1east 3 of!be following 4 crUoria: ...un _ minimum existing evidence of"- rdaIed di-'>aace such as cIikiDg. ditching. fiUing. cu1tivatioD, puing oe!be presence of IlOIl- aaIjve p1ant species (see guidaace foe defiaitioA); _ surface water connection with tidal sa!tw*t oe tidaI fieshwaIer; -a11east 7S%of!bewetland basalOObuffi:rof~pastme, open wat.... sbrub oe forest; _ bas at 1east 3 of !be fo11owiDg featun:s: low marsh; hip marsh; tidaI cbaane1s; Iagoon(s);woody debris; oe contiguous &eshwater wetland. 2c.4. Does !be wetland meet all of!be four criteria UIIcIer 2c3? (above)? Q.2d. Eel GnSlud Kelp Beds. 2d.1. Ale eelgrass beds p<esenl? ............u..................................- 2d.2. Ale their floating or DOn-floating kelp bed(s) preseut with greater than SO% macro algal cover in !be month of August or ~............u. Q.3. Category IV wetlands. 3&. Is !be wetland: less lban I acre I!Il!. hydrologically isolated I!lI!. comprised of one vegetated class thaI is dominated (> 80% areal cover) by ooe species ftom Table 3 (page 19) or Table 4 (page 20) 3b. Is lhc wetIancI: less than two acn:s and, hydro1ogically isolatec1, , . with ooe vegetated class.1Dd > 90% of area1 cover ill any combination of species from Table 3 (page 19) 3c. Is !be wctIaud excavated from upland 1IllI. pood smaller ""'" I acre without . surface water connection to streams. lakes, rivas. or other wet IDdbas<O.l acreofve lion. rw ({; , ic: n · r \[\ MAY 3 2004 \ YES: Go to 2b Yes: Go to 2c Yes: Gotold YES: Category I YES: Category U NO: Go to 2&.3 YES: Category I YES: Category U NO: Go to 2&.3 YES: Category I NO Category U YES: Category 11 NO: m YES: Category I NO: go to 2d.2 YES: Category I NO: Category U IV NO: go to 3b ~ TI: -- \ ..:- .:\ ! , ' '1 ,,' , \ I' ~_ .I -- DATA FORM 1 Routine Wetland Detennination (W A State Wetland Delineation Manual or 1987 Co s Wetland Delineation Manual) Project/Site: aPe C1l:i)t.4E M ~ It q qu ')l5V () 0 10 Date: 4 1:3 01- Applicant/owner: ~ S-re 5c:H .f1 '14u $tO au 7 County: \ft;"'FFtJ1...SCN LD~-rv\ State: I)/ASt1tf\Vtt tuN srrlR: t;/,? -r 0 f?-2V..} Community ID: Transect IDp: ~' Pibt 10: D T+"' I Investi tor(s): .' aDt'-1 Do Normal Circumstanc~ exist on the site? c::::fii? no Is the site significantly disturbed (atypical situation)? yes ~ Is the area a tential Problem Area? es c:::::n:o::? VEGETATION Dominant Plant S ies Stratum T T 067+ S Ru US sPEL-m u HYDROPHYTIC VEGETATION INDICATORS: % of dominants OBL. FACW. &@ 4 2- ~ Check all indicators that apply & explain below: Regional knowledge of plant communities v -fr Physiological or reproductive adaptations ~ Technical Literature ~ Hydrophytic vegetation present? Rationale for decisionlRemarks: L&s "TifTW 5"\70 uvn IN Ar\l (E HYDROLOGY Is it the growing season? ~ Based on: ~\lL DIL D 1/<7 Dept. of inundation: j--f otAfe inches Depth to free water in pit: N~ inches Depth to saturated soil: JVbNf Check all that apply & explain below: Stream, Lake or gage data: Aerial hoto hs: Wetland hydrology present? Rationale for decisionlRemarks: inches Other: yes Indicator Dominant Plant S ies Indicator Stratum f1\LV FALU f1\cv PALo{- yes Wetland plant list (nan or regional) Morphological adaptations Wetland Plant Data Base ~ ~ -.L -L OTHER _ no Water Marks: Drift Lines: es no Oxidized Root (live roots) Channels <12 in. es no FAC Neutral: yes no no no yes no Waler-stained Leaves: yes no Other: ~ ~' ~ln' , " ,tJ , , Ie MAY - 3 2004 <:..:- " . ;'t:Pl Of CJ\ r;.:, , . _,l:"L..OP~L. DATA FORM 1 Routine Wetland Detennination (W A State Wetland Delineation Manual or - ' 1987 Co s Wetland Delineation ManuaI) Project/Site: C-ft?e 0EO~e p/tfU!.a.:::> 0 5W ODp Date: Cft)o 9)J 007 Applicant/owner: ~ S~B8'-' Investi to' s): D. t4 6 rn l Do Normal Circumstances exist on the site? Is the site significantly disturbed (atypical situation)? Is the area a tential Problem Area? VEGETATION 4{' J 04- : County: ~~ State: U/ A- srrlR:Sl3 3D'eZ IA/ Community 10: Transect 10: Plot 10: p=f:f Stratum Indicator Dominant Plant S ies Stratum Indicator H \1 () BL Check all indicators that apply & explain below: Regional knowledge of plant communities Physiological or reproductive adaptations Technical Literature . Hydrophytic vegetation present? Rationale for decisionlRemarks: 11) ~t4::}tTtrl --,rtAA <S" I '1> L- X ~ Wetland plant list (nat'l or regional) :::L.- Morphological adaptations 1- Wetland Plant Data Base x no OTHER _ HYDROLOGY Is it the growing season? Based on: Dept. of inundation: yes P61V(ttL'7 - 0 - inches ,ev WaterMarks: es no 11 Drift Lines: es no Oxidized Root (live roots) Channels <12 in, es no FAC Neutral: yes no no no yes no Depth to free water in pit: <.....- - 0- inches Water-stained Leaves: yes no Depth to saturated soil: -. D ~ inches Check all that apply & explain below: Stream, Lake or gage data: Aerial hoto hs: Wetland hydrology present? Rationale for decisionlRemarks: Other: Other: yes rm.._- -rg 11 fIr r;" ,; 04 tll1 O~C ~::Pl OF Cj\ r:....; . _.~\'ELOPr ~ t--< t:l ~ c (\) 'S; - ~ c." C ~. ~ ~ - :s tl ~. ~ ~ :s :s ""'I ~ l:: c." l:: ::::;:- -. \J"' tl \J"' ~ ~ $:1 ""'I ~ C (\) ~ ""'I ~ l:: :s :s s' ~ IS c :s :s l:: $S' $S' > > ~ ~ - 1:1 = ~ ~ 1:1 ~ Q. = f'D ~ f'D = Q. f') - ~ i ~ I:l'" f') = = .... f'D f'D ~ ~ ... ... = = ~ ~ ~ ~ ...... N W ~ 0 0 0 0 ~ ~ ~ ~ "C (f) [ CD S' (JQ 0- ~ CD ::J (') ::0 ~ CD < CD t'Il ::l (0 0.. CD a - Q) O' - er ::l ::J ~ 1J N VI i>> ~ ::J '"0 t'Il ., ~ ~ 00 t-3 f') .... ~ f'D =" 1:1 - .... ~ 8i N f') . 2: ~ = a I f'D (I.l ~ ~ c.. -. = CJQ :::0 ~ t') c a a ~ ~ = = c.. a ~ a .... _. = C 1:1 = 2: (I.l = ~ a = f'D c.. ,0 = ~ = '"tl .... -. f'D .... -. ... ~ f') (I.l f'D 1:1 .... o -< 3 "0 C=i" ~ CD - i>> _' -- --, m"[)T~'~ " "r ~'r),:, n'! t J U It MAY - 3 2004_ ~ ;:'iPl OF Gj,\ ~ i ,', .:."':" _.E~.t~OPt.,L > I .........-- -- ,00000 ; 'g ~. := ~. ~J8 ~ '< .. ..~~ ..., t'Il ..... o (') (') ... 0 s>> ;~~ e g ~ g"~~ ., 0.. t'Il o '" 0.. ...., '"0 8' ~ ~ ., ~ S' ~ ~(JQ ~ '" !" 0 8' ., ., a "C:l ..... ., g ..9. "C:l t'Il ., g. ..9. . t'Il (') ... !" ~r/lr/l'Tj2: 00 ::ro= 8.[~~~ aZ~(")f'D ~~'~3:! Z t'Il Z t'Il = s; ::gS;zs. ~~ ~.~ ~ 2: ',:<:Y':'<~= _ "C 0\ ..... ;: Ri 0 ~~ S o ~ r/l ~ f'D. VI 0 ::rVl ~ 100 ;.< g .....:a er .....:a t'Il tr:I :> ~ ~ ~ ~ ~VI ~ ~ 9.~ d'~ (JQ i3 ::+..... ::r:: "C:l :> ~ a. .F' Jg ~ o <d t'Il 0 ., <; (i" s>> ~:>",o.. "'- 100 ~ to ...... 00 <; ~ ~ ~ :> s- ~.....:a ~~ VI'O~f!l t::J~N::I o'-'____~ ~ ~ ~:> N~SIoO 0\ .....:a .j::. 00 yo 0 VI N 0\ N .....:a N NO\,O\ .....:a 00 ____ _ .j::. V> 000\ NO '-' .....:a V> .j::. I o o .....:a 100 nt"' eoot"'" QQ oo~.~ := n ~ t'Il t'Il Q. l>> := ::s e~ ~p.. Q:= 00:=1 :=.. :;.:l n ""C l>>l>> :>- ....:= '" ~ $' Q. ~::. ~s el. g 0 = ilia>orj== S!: o' > t"' Q t'Il ::s n := ~g 'Tj ~; !3",~Jt= ::;,. = s>> t'Il ~~t'Ilit(t~ ~~~.~W :::!. 0 G ! (b- 9l~~~S . ~&o..Si ., ~ "C:l (') C)o..~~ ~~ Vi ::I ~. ~ ~ ~ JJ=~8 "C:l~""a Pf e. e. s' ::l-<~(JQ 8' t=. ~ .... ., P", 0 g.~8'::r:: ej~Ei~l Si~0..5 g 0.. t=. 0 p+ en P ("') O' a' ~ :>;" ? a ~ ~ Q-o.. (') ~ (") (') 0.. 0 el----::s O' ::g.g ~ '$. Vi' - '-' ... ~~..-.. S' >orj ~ =>~ "C:l n '-' ~~~ o..'TjO ~~~ ~ag, a-!ier 0\ ..... t'Il '$.(i"C '-'~~ t'Il ..... ~~ ~ Z 0..0 ~g. ~ ~ '" t'Il = ~ '" = e. -< S' ~ ~ [ '" ---- 0\ .....:a I 100 100 '$. '-' s. (\) l:: :s '"rj'"rj '"rj '"rj '"rj >> >> > (j(j (j (j (j c::c:: c::c:: II v.l v.l ~ ;:T ~~ (D (D (D () () () () () 0 0 o 0 0 a ~ ~~ a e. p:l ..... ....... ~. -. ~ ::s ::s ::s ~ (D (D (D ., ., ., ., ., - ~N ~ I - N(JQ VI (JQ VI (JQ e. (JQp:l(JQ e. p:l -- p:l -- -- t-3 N S-Vl+; ~ - t-3 c ......~...... ....~-~ ~ - ~O'I""" 0\ 0 ~~VlW N t-3 ~ =" - ~ ~ . ~ ~ .... - ~ = c.. It'd - ~ = .... ~ -. (I.l .... ~ = c.. ~ ~ = c.. (I.l t') ~ "0 ~ rL1 "0 ~ t') -, =- t') ~ .... -, c = (I.l Installation Specifications and Recommendations All areas of exposed soil will be revegetated with species known to tolerate local soils and local conditions. Individual plant species have been selected because they have a high habitat value, are consistent with surrounding vegetation, and are known to thrive in east Jefferson County. Fall Installation Planting should be installed between mid-September and mid-November, unless the new plantings can be watered throughout the summer. Plantings installed in the fall generally outperform those installed in the late winter or spring. Plants put in the ground in the fall have the advantage of an extended period for root growth before rapid top growth in the spring. In the fall, the soil is warmer and more aerated than in the spring and most plants experience active root growth during this time. The cool, cloudy days and frequent precipitation of fall and winter also provide ideal transplanting conditions. Until sufficient root systems develop, newly installed plants will undergo transplanting stress that can be exacerbated by hot sunny days. Fall and winter weather allows for reduced transpiration and provides ample moisture for the roots while the plant recovers from transplant shock. Root Disturbance Immediately before installation, plants with broken, damaged, or twisted roots must be pruned. Matted or circling roots of containerized plantings must be pruned or straightened and the sides of the root ball must be roughened from top to bottom in two to four places to a depth of approximately half an inch. If circling roots are left, they may eventually girdle the plant as they grow and thicken in place. If the roots at the edge of the root ball are straightened and extended, they will have access to a greater volume of soil in the planting hole. Also, the roughened edges of the root ball will have better contact with the backfill soil. Disturbing and removing one-fourth to one-half of the roots in the outer inch of the root ball will damage only the most sensitive plants; most often, this treatment actually stimulates increased plant growth. Plant Depth The finished height of each plant's root ball will be slightly higher than that of the surrounding soil. The exception is for sandy soils, in which case the soil heights will be even. The top of the root ball will not be covered with backfill soil. A watering basin will be formed around each planting by building a berm of soilIjlL., -----re, ~- -" 11 "[!' least 30 inches in diameter. ; I ii' l.b ll,r rr _ _' iIU<c-, . pr\ ill \ MAY - 3 20C I I ! .. ;",,:PT. OF Cl~t';..:" . ~.: When planting a container-grown plant, the top of the root ball should not be covered with any other soil. Covering the root ball with soil, particularly if it has a finer texture than the potting or field-growing soil, will generally cause water to flow around the root ball instead of into it; root balls covered in this way may receive water only from below. To allow direct wetting of the root ball from above, install the plant so that the top of the nursery soil is slightly higher than the surrounding soil level. If the soil is sandy, or of a large particle size, then the nursery soil should be level with the surrounding soil. A watering basin made of mounded soil around each planting will further help to catch water from above-the berm should be at least 30 inches in diameter, surrounding the plant. Mulch placed within the basin and on the berm will limit moisture loss from the root ball and surrounding soil, but care must be taken that it does not come into contact with the stem of the plant as pathogens living in the mulch may attack the bark. Rodents living in the mulch may also be a problem. Re-seeding After the completion of the construction and planting projects, a seed mix (included in the Appendix, Table 1) will be evenly spread on all bare areas. An inspection by a wetland biologist or Critical Areas staff of Jefferson County Department of Community Development will be required after all planting is completed. Maintenance: Weeding and Irrigation The use of appropriate native species and careful planting ensures that the need for ongoing maintenance will be minimized. However, some maintenance is required to ensure that the young plants become established. It is recommended that weeding around new plants be conducted once or twice a year during the months of May and September for the first five years, and as often as needed after that. All Scot's broom, Himalayan blackberry, and thistle should be monitored and eliminated from the site. Irrigation may be required for upland species (vine maple, red-flowering currant, and pine) for the first three years or until plants are well established. Hand watering or irrigating with overhead sprinklers once a week should be adequate during the hot summer months. Wetland species that are planted near the creek corridor may require less watering. r:'""'-"-'- ,..'. -'-.'-, ~ij ,IE ~ ~ ~ f\r ~ ~: ,rrMAY-3200;':V! I ;.,t::Pl. Of Gj\ [ , _,;:\'f~OPf'l!.. ,I 2