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HomeMy WebLinkAboutWetland delineation report B08-0145FILE COPY ~a ~ - D/ys WETLAND DELINEATION REPORT BEAVER DAM ROAD DELINEATION EAGLE COUNTY, COLORADO Prepared for- ERM-Rocky Mountain, Inc. 6455 South Yosemite St. Greenwood Village, Colorado 80111 Prepared by- ERO Resources Corporation 1$42 Clarkson Street Denver, Colorado 80218 (303) 830-1188 June 10, 2008 ERO Project #4004 t~~ h'~<r,<ir~; CONTENTS Introduction ......................................................................................................................... 1 Methods ........................................................................................................................... 1 Site Description ............................................................................................................... 2 Description of Wetlands and Other Waters of the U.S ................................................... 2 Wetland 1 .................................................................................................................... 2 Upland Soil Points ...................................................................................................... 3 References ........................................................................................................................... 4 TABLE Table 1. Common and scientific names and wetland indicator status of common plant species within the project area ............................................................................................ 3 Figure 1. Site Location Figure 2. Site Plan Appendix A. Data Forms Appendix B. Photos FIGURES APPENDICES eao Projeet ~aooa 4 SRO p:~d000 projects\-400-t tail hca~ er dam rd delinealiun`,n~etland delineation report ecopy.doc h"^f~!t!tt> WETLAND DELINEATION REPORT BEAVER DAM ROAD DELINEATION EAGLE COUNTY, COLORADO JUNE 10, 2008 Introduction ERM-Rocky Mountain, Inc., retained ERO Resources Corporation (ERO) to provide a wetland delineation report for a property located at 333 Beaver Dam Road in Vail, Colorado (Figure 1). The project area is in the northeast'/4 of Section 7, Township 5 South, Range 80 West of the 6th Principal Meridian, in Eagle County, Colorado. The UTM coordinates of the approximate center of the project area are 381306mE and 4388862mN, Zone 13. Methods On August 30, 2007, Moneka Worah, an ecologist with ERO, surveyed the project area for wetlands and other waters of the U.S. Using methods outlined in the 1987 Corps of Engineers Wetlands Delineation Manual, wetlands were determined based on the presence of three wetland indicators: hydrophytic vegetation, hydric soils, and wetland hydrology. Hydric soils were identified using field observation for gleying, mottling, sulfidic odor, inundation and saturation levels, or other hydric soil indicators accepted by the U.S. Army Corps of Engineers (Corps). A Munsell Soil Color Chart was used to determine soil color. Wetland indicator status for vegetation was determined by Sabine (1994) (Table 1). Common and scientific names of plant species were obtained from Weber and Whitman (2001). ERO flagged the boundary of the wetlands using pin flags that were sequentially numbered and correspond to pin flag locations on Figure 2. ERO delineated wetlands using a Trimble ProXR Global Positioning System (GPS) unit and TBCl data logger. Data were differentially corrected using the CompassCom base station. All differential correction was completed using Trimble Pathfinder Office 3.0 software. The GPS data were incorporated onto aerial photography using ArcMap. Data forms were completed at g;~~ SRO Project #~00-1 ~ `~:is`,'r~r„c . si-'13i?(ci hilt WETLAND DELINEATION REPORT BEAVER DAM ROAD DELINEATION EAGLE COUNTY, COLORADO representative locations to document wetland and upland conditions (Appendix A). Photos of representative wetlands are provided in Appendix B. Site Description The project area is located at 333 Beaver Dam Road in Vail, Colorado (Figure 2). The project area is adjacent to a house within a residential neighborhood of Vail. Dense willows (Salix spp.), snowberry (Symphoricarpos oreoplzilus), and birch (Betula spp.), with an understory of quackgrass (Elytrigia repens), smooth brome (Bromopsis inermis), star false Solomon's-seal (Maianthemum stellatum), and Canada thistle (Breea arvense) occur in the unlandscaped portions of the project area (Photo 1). Several blue spruce (Picea pungens) surround the willows. A small pond is located to the west of the project area (Photo 2). The pond drains into the northwestern corner of the project area, forming a 1- to 2-foot-wide channel (Photo 3). The channel has a small fringe of wetlands dominated by willows, fowl bluegrass (Poa palustris), mannagrass (Glyceria striata), beaked sedge (Carex utriculata), and redtop (Agrostis gigantea) (Photo 4). The project area is surrounded by residential development to the south, east, and west, and by Gore Creek and its riparian comdor to the north. Description of Wetlands and Other Waters of the U.S. The project area was assessed for wetlands and other waters of the U.S. No streams are shown on the USGS Vail West quadrangle within the project area. A small channel with adjacent wetlands (Wetland 1) in the northwestern portion of the project area has characteristics of a water of the U.S., including an ordinary high water mark and a bed and bank. The channel flows north to Gore Creek, a perennial stream with relatively permanent flow. There is 0.003 acre of waters of the U.S., including wetlands, within the project area. Wetland 1 Wetlands along the 1- to 2-foot-wide chalulel are dominated by shining willows (Salix lucicla caudata), sedge, mannagrass, willow herb (Epilobium spp.), and redtop. Data collected from a soil pit (spa on Figure 2) revealed hydric soils with a low chroma matrix (lOYR 2/1) at 0 to 12 inches. Red parent material was present at 8 inches with a chroma ~scu,•rr= t q~:; ~~;};~~pi~~? WETLAND DELINEATION REPORT BEAVER DAM ROAD DELINEATION EAGLE COUNTY, COLORADO matrix of 7.SYR 4/3. Large mottles (4/6 7.SYR) were also present at 4 inches. Soil texture is clay. The primary hydrologic indicator for this wetland is saturation at the soil surface. Secondary hydrologic indicators include drainage patterns. The boundary of the upland was determined by a higher dominance of quackgrass, a facultative upland species. Additionally, data from soil data point spl (Figure 2) lacked indicators for hydric soils and wetland hydrology. Upland Soil Points Area 1 An area dominated by willows, a wetland indicator species, was investigated for the presence of hydric soils and wetland hydrological indicators. Soil data point sp2 (Figure 2) is located in a mesic area dominated by willow species. Although willows are typically a wetland indicator species, the understory species, quackgrass, Canada thistle, smooth brome, and snowberry, are facultative upland or upland. Although the soil matrix chroma was low, it is typical of mountain soils and no mottles were presenta strong indicator of a fluctuating water table. No red parent material was present as it was in Wetland 1 (see Appendix A). No hydrologic indicator was present at the time of the site visit. Table 1. Common and scientific names and wetland indicator status of common lant s ecies within the ro'ect area. Common Name Scientitic Name Synon~Tms Wetland Indicator ~ Status Redtop Agrostis gignntea Agrostis alba Faculative Wetland Birch Betula spp. Facultative Wetland/Obligate Canada thistle Breen arvense Cirsium m-vense Facultative Upland Smooth brome Bromopsis inermis Bromus i~zernus Upland Beaked sedge Cm•ex utriculata Carex rostrata Obligate Wetland Quackgrass Elytrigia repens Faculative Upland Willow-herb Epilobiur~z spp. Obligate Wetland Mannagrass Glycerin striata Obligate Wetland Star false Solomon's- seal Maianthemtm2 stellatum Upland Blue spruce Picea pungens Facultative (-) Fowl bluegrass Poa palustris Faculative Wetland Shining willow Solix lucida caudata Obligate Wetland IRO Project #-1004 J `~~`~ WETLAND DELINEATION REPORT BEAVER DAM ROAD DELINEATION EAGLE COUNTY, COLORADO n S .. Wetland Indicator Common Name Scientific Name. yno yms . Status Willows Salr.~ spp. Facultative Snowberry Symphoricarpos oreophilus Faculative Upland 'Obligate Wetland -Occurs with an estimated 99%probability in wetlands Facultative Wetland -Estimated 67%-99%probability of occurrence in wetlands Facultative -Equally likely to occur in wetlands and nonwetlands (34%-66%probability) Facultative Upland - 67%-99%probability in nonwetlands, 1%-33% in wetlands Upland - >99%probability in nonwetlands in this region A negative sign (-) indicates a frequency toward the lower end of a category (less frequently found in wetlands) References U.S. Army Corps of Engineers (Corps). 1987. Corps of Engineers Wetland Delineation Manual. Technical Report Y-87-1, U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS. Sabine, B. (editor). 1994. National List of Plant Species that Occur in Wetlands: Regions 4, 5, and 8. Resource Management Group, Inc. Weber, W.A. and R.C. Wittmann. 2001. Colorado Flora Eastern Slope. Third Edition. University Press of Colorado. till 1RO Pn,;ect~-loo-t 4 t.t3,~'7Or~:iii?z ,~ , E a ~ S J +';,: j}j t l-, ~" ~~ ~~ Yy~ t Y--~ j --~--~.. f ~" " 1 l -«, r. ~. >~° .._..r • '.fie:: ".. . -... ,' i"f •`~-„-.may' ;{ ~ ~ ,y / '4 ~ ~ ~° ~Y ~ .~'.-.ter <,.~; w i_ '~ ERA Beaver Dam Road Delineation Figure 1 Location Sit NE'iti of Section 7, TSS, R80W e ERO Resources Corp. UTM Coordinates: Zone 13; 381306mE, 4388862mN 1842 Clnrkson Street USGS Vail West, CO Quadrangle Denver, CO 80218 Eagle County, Colorado N PlBpufed {GC ERiil (303) 830-11 88 Fax: (303) 8s0-1 1 UO file X004 figure l.pdf ~ tember 20; Se 7 0 2r,~oo 1oro ,F•t , ;,,~ n _ 2,0:o F,,,,; , p sr-;-~: ~ ~ ~ ~. ~ a ~ l ~ ~~ 3 ~ ,gym ~ ~ `~~ ~ ° ;° ~- F ~,~ ~ ~ ti . ~ ,~ c o ~ ~ 1 ~ ..=' ~ V ~ ,~ ~~' • ~ I tt ~ "~" ,II I I 1~ 1 Q N ~ ~ ~ ~ ~ O ~' ~ .. ,~,~T ~ `~ ^^Q,, L~ O t ~ '~~ F .~ n L ~ y .. ` a ~/ ~: a~ ~ ~ y ~. a ~ i ~ i* ~ & Q p ~ ~' p ~, N C~ r ~ ~ ~ v ~ '.~ r ~' ~ , . ~ . m . N o +A ,~,.~ e ~ ~ . a 'm ~ ~ ~ ~ ~. ~ ` .+ , v. , ~t'* V in p > ~ ~ ~p ~ ~ V ~ rte,. ~ J T °"1 O ? o ° " a ~~ns ~ & r .~4t. 3 ~r.~ l _ ~~u ~ ~~ .., sy ~~.~. Q .. ~, _ -.~. s'-..W,.. .« ....... .. ~ ~ ... ~ ,.._. w ~ O M ~ Appendix A. Data Forms L=RO Project -~OOJ ~~~r h~,~~:;j.~iiy DATA FOItI~'I - ROLiTI~NE WETLAND L)ETERMIi'rt 4TIOi~r Site `~~ (1.987 COE Wetland Delineation :Manual ProjeetlSite: .ti-IZ.~ S~.~rn ~ ti~~~ Date: ~(`~(~~~~ Investigator: '(LAf~IY~!~c.. ~Cx~--~ _ CvuntyrState_-C {'_ C-O Is the site significantly disturbed {atypical situation)`? Yes No USGS Quad: ~tk~ E..i~-~- Dom. Plant S 'ies Rel. °fe Stratum Irxlicatpr Other Plant S eCicS Rcr. °i° Staatinn Indicatr~r ~, ~ N ~ t 2 ~12i 2 3P s ~ a a 5 ~ Percent of Dominant Species that are OBL, FACW yr FAC {excluding, FAC -) C.p(p~' 14 FAC-neutral 3'3"I.o Remarks: HYDROLOGY ~'~'etland h °drolo resent? Yes IVa Primary indicators: Secondary indicators {2 or more required): inundated depth {iu,) oxidized root trhannels in upperl2" saturated upper 12" depth {in.) water-stained leaves FAC-neutral test drift lines sediment deposits local soil survey data otlrer drainage patterns in wetlands Rertr~rl~: Ns~ e.~;~e.+~.. ~ 1~c{c,, SOILS Hydric soils present? Yes "rto Map Unit name: Do field observations confirm Wrapped type? llepth (inche~ Horifi~n Matti.x Color {Munse1l Muistl Mottle Colors ~Munsell Moist) Mntttc Abundana~Cantrast Texturr, Concretions, Stnrcture, etc. ~ 3 Hydric Soil Indicators: ~ liistosot o rAtluic moisture rt=gitne n Organic streaking in k~ndy soils Ilistic epipedan o Reducing conditions o Cnncretians ~ Sulfidic actor ^ Cileyed or law-chrome colors o Listed nn h~°dric soil list r~ high organic content in surface layer in sandy soils ~ {~ ~} Remarksy:,.~,~~,~,~{.',2C~"' ~3~r ~l't~" ~~ ~~',~(--'-}-t ,~~~ C.Ci..~. [3t" C'..C~~t t}'" r"`~ r1'YJ t t tC-~J WETLAND DETERl4~lliti'A'i'tON is this sam lin oint rritftltt a wetland:" Yes No Remarks: ~ 1"X,~`~J' ~ k~ PO'i'EN't'IAL NEXl1S TO KNOWN '41'C[S !s wetland adjacent or neighboring to jurisdictional waters ttivaters of the t.i.S. or their tributaries) or jurisdictional wetlands {wetlands adjacent to or with surface; connections to jurisdiction;tl waters)'? s~Yes r~NU Does ~k°ctland have a surface eonne~tiair to jurisdictional ti+~aters or jttrisrliction;a G~~etlands' r;Yos c~~lo Rcntarks: tRC)R~..i>..ict,im~~r,ra(i~m ~;i{.~i~„u;i4lreef.ihrr~s~t.4'i,la,r~~ie,s(~~ik f~ tf[r4~~si.i1~8 17iri3i,~3~a:0il'~~) DATA F(}I21'I - ROL3T.INE VVE'Ci.Ai~'I} DETER14IiNATIOi~i Site "J`~2. 1987 COE Wetland Delineation lYianual PxojectlSite; ~ ~r~ _ ~~,"~+r1tfi3~.~tr~, Date: ~~~~~ Investigator: ~,2>~C,~ l,.~r~.~„C'1, CotuttylState~~~,L,,.t ~~f Is the site si2ni~cantly disturbed ('atypical situation)? Yes No USGS Quad: '~~~"' VEGE'I'r17'ION Ilvdranhvtic veEetatian present? Yes No Dom. Plant & cies Rci. °l. Stratum Indicator Other Plant Species Rel. °l. l `.J ~ 1 3 ' `~{ ~' 3 Map Unit name. Do field observations confirm mapped type? )}epth (inche) Fl ton Matrix Color (Mtmscll M~oi}i Mottle Cnlars (Mansell Moistj Motde AbundancclContrast '1'c,xturt:, Concretions, Structure, ets. C Hydric Soil Indicators: a kiistosol o Aquic tnoistun: rc~itne a IIistic epipcdon a Rcducin~ conditions o :Sulfidic odor ~ {rleyed or low-chroma colors ^ Hi~,h organic content in surface. layer in sandy soils n (.7r~anic streakint; tat sandy saiEs o Concretions o Listed on h}'dric soil list Remarks: ~!->;i~,}~ Cr`O~"'~"'y eta ,,.,_ ` ~,et`~r,o~1~S ~~'=t~'1 ~~ ~~'\~N. ~CC~ C3~..~"'"~C~ ~ Ca.{~'..~ ~--• f'~~ WETLrSND DETFRIVIINA"I'I01Y Is this sam lin Dint Fs•ithin a n~etland". Yes LA(o Remarks: PO'I'F:~i't'IAt, !1\!S'I'O IC~IOWfV W'tS Is wetland adjacent or neighboring to jurisdictional waters (ti+~atcrs ot'the U.S. or their trihutarie-s} or jurisdictional wetlands {wetlands adjacent to or ~tiifh surface connections to jurisdictional ~+~aters):' iYe r_M~ L~ocs ~t°ctland have. a suriaee conneeaion to ,jurisdiclieen,ti Haters ar jstrisdictional t~itl axis' - 1'c> avta Rctnarks 1-f'tO Itr_s~rarcea C'ntpnraaoa I y) (larK,nn S'rerl. I?c~~~~e!', ('xrl~~r;al~. R~1214 /'~i t +Q3 X~p i I:;r: Pirr ~ +ti~ l fi;?tl.l i~sq DATA FUIt'VI -ROUTINE WETLAND DETERMIItATI()N Site Project'Site: ~~~_~~~ Q..~ C'',~~~>^~..~~'1 Date. `'b!'~~ _.._~_L. Investigator: M[7Y1~.~ t~cr-n~ CountylState ~~~ Is the site significantly disturbed (atypical situation}? Yes No t.iSGS Quad: >~ _~O VEGE'fAT[ON N •dra butte ve etation resent? es Na Dom. Plant S ties Rel. to stratum tn~ic3wr Other Plant S c^Cies Rti, °. stratum indieatnr 1 4 ~ I n ~..... ..s..-~.~, .. t ..._1___ .~-~r C~ 1.... 2 __ 3 5 c- er,, ~ ~ W Percent of Dominant. Species that are QBLx FACW ar FAC (excluding ;~AC -) 1]y~ ~ FAC-neutral ~~~, Remarks: __ - _ - - - - - _ _.. r .~_- N,. Hydric 5oi1 Indicatars: o Histosal a Aquic moisture regime o C)rganie streaking in sandy sails ct Ilistic epipedon o Reducing conditions n Cancrctions a Sulfidic odar jaCf ileyed or law-chrome colors n taistcd an hydric soil list c~ Higlt organic cantent in surface la}'~:r in s~tdy sails r,.~ ,,~~,~`~~~ Remarks: ~ ~GC~J~ `~~~~ ~~,`.~°t-~' `^1' ~I I t C•~f'''+lt-7~,,"1"t1G. ~r ~t~"?~ ~o Remarks: ~,~ ___ Is 1~°etland adjacent or neighboring to ~urtsdiclional waters (~4'aters of the [.5. or their tributaries} or jurisdictional wetlands (wetlands adtaetnt to ar ~a•ith surface com~cctions to jurisdietinnal waters)? ^Ycs ~~lo Does wetland have a surf ace connecttt?n to ~urisdictic>ntii maters of itxristlictit~nal ~+~etl.tnds ~ _:~'c~ t~~l`ltt ,„~~, Remarks: I~t{ti he ~~,i~n;r; t i~,~nn;uit~r. ~,tR1.. ~ I i' <.~n '+u:ia, ll.i,u~r.~( ,~.~..aiv ;:0'':;; fait (:+}tt ti rl , 13:t F'oa~ t .zi).S1 q3U_( i')g Appendix B. Photos I_RU Prnjcct ~1Q1)1 `~~'~ S r ilurif' .. ~r.3 >'iFjjj BEAVER DAM ROAD DELINEATION PHOTO LOG AucusT 30, 2007 Photo 2 -View of small pond directly west of the project area. View is to the west. Photo 1 -View of shrubs and herbaceous vegetation within the project area, south of the residential house. View is to the south. BEAVER DAM ROAD DELINEATION PHOTO LOG AUGUST 30, 2007 Photo 3 -View of small channel within the project area. View is to the south. Photo 4 -View of wetlands along the channel. View is to the west.