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Wet?.and Investigation and Delineation Report ' Duvall Avenue NE Widening Project ' City of Renton (King County, Washington) 1 1 2� y 23 Prepared' for.• No p'iv•Stems The City of Renton �ra�SPo�at10n�y Renton City Hall- 5`h Floor 1055 South Grady- Way Renton, WA 98055 ' Prepared by: - ------ — — - ------ Widener &Associates BERGER/ABAM Engineers, Inc. ' 9908 Airport Way 33301 Ninth Avenue South Building 12 Unit 1 Suite 300 Snotiomish,WA 93296 Federal Way,WA 98003 ' September 23 20A 4P0101 �SY Planning/Building/Public Works Department ♦ + Transportation Systems Division 425-430-7321 Fax: 425-430-7376 Municipal Building 1055 S. Grady Way, Renton, WA 98055 4i fRc=v3 -/3 ( To: ,Qu,y > i/24 K.,4 DATE: 1 (123lo4 JOB No. cige, c 3 -/-s 5' r/aC c ✓A T ( %l L( T RE: C e-2EZ r,- We are sending you CK Attached ❑ Under separate cover via the following items: ❑ SHOP DRAWINGS ❑ PRINTS ❑ REPRODUCIBLE PLANS ❑ SPECIFICATIONS ❑ ORIGINALS ❑ COPY OF LETTER ❑ COPIES DATE NUMBER DESCRIPTION / REMARKS Z3 ��{ (�1 T�,a�tiJ /�✓L3 i I(�ATI�,�" DCL-i�vc,,)Tr-w /-C(o,'-' T- L i % L7 0� SUN' S !4?j /�A Co.,oIv) ti l SN--T �N�%c�l�i -re MESSAGE: These are transmitted as checked below: ❑ OR APPROVAL ❑ APPROVED AS SUBMITTED ❑ RESUBMIT COPIES FOR APPROVAL L�1 FOR YOUR USE ❑ APPROVED AS NOTED ❑ SUBMIT COPIES FOR DISTRIBUTION ❑ AS REQUESTED ❑ RETURNED FOR CORRECTIONS ❑ RETURN CORRECTED PRINTS ❑ FOR REVIEW AND COMMENT ❑ ❑ PRINTS RETURNED AFTER LOAN TO US Copies to: / l s L iG /U "7 From: ✓ /Ir�c"7`� IF ENCLOSURES ARE NOT AS NOTED, KINDLY NOTIFY US AT ONCE. RENTON PLANNINGBUILDING/PUBLIC WORKS DEPARTMENT TRANSPORTATION SYSTEMS DIVISION DESIGN REPORT REVIEW Project: Duvall Ave.NE/Coal Creek Parkway SE Reconstruction Review Type: Draft Wetland Report Project Manager: James P. Wilhoit Phone 4 (425)430-7319 To: �CoV S T&I K1'9 Attn: Date: 2 2 7 d4 Transportation Design Community Services Transportation Operations Fire Transportation Planning Police V Storm Water Utility SPU Waste Water Utility King County/Metro Water Utility PSE Street Maintenance 360 Network(Fiber Optics) Utility Maintenance COMCAST Construction Inspection QWEST Development Planning WSDOT Plan Review Coal Creek Utility District Planning and Technical Services PLEASE REVIEW AND RETURN THIS FORM WITH YOUR COMMENTS TO PROJECT MANAGER BY: October 15, 2004 IF POSSIBLE PLEASE USE ATTACHED FORM FOR COMMENTS- MAKE ADDITIONAL COPIES AS NECESSARY. Reviewer check appropriate space(s): No comment Reviewed by: See comments below Date Reviewe : See comments attached See comments on Plans Approved by: See comments on Specs Date approved: Comments: S w l� 4,,r.K. — z" nty:� A,,,.,,.r Of BY Cx /n 7`k o N� / H:\DIVISION.S\TRANSPOR.TAT\DESIGN.ENG\jwilhoit\duval l\partners\design\wetlandREV IE W.DOC ' Table of Contents ' 1. INTRODUCTION......................................................................................................2 1.1 AUTHORIZING AGENCY AND REASON FOR THE INVESTIGATION...............................2 ' 1.2 SITE LOCATION/PROJECT AREA..............................................................................2 1.3 PROJECT DESCRIPTION............................................................................................5 1.3.1 Purpose and Need..........................................................................................5 ' 1.3.2 Existing Condition.........................................................................................5 1.3.3 Proposed Work..............................................................................................5 1.3 DATE OF SITE VISITS/IDENTIFICATION OF DELINEATOR(S).......................................7 ' 2. METHODS..................................................................................................................8 3. RESULTS AND DISCUSSION...............................................................................19 t3.1 SITE DESCRIPTION................................................................................................. 19 3.1.1 Topography.................................................................................................. 19 3.1.2 Land use....................................................................................................... 19 ' 3.1.3 Hydrology information................................................................................ 19 3.1.4 Plant communities.......................................................................................22 3.1.5 Soils mapped and found...............................................................................23 3.1.6 Existing wetland mapping...........................................................................24 3.2 FINDINGS..............................................................................................................25 3.2.1 Size and location of wetlands identified......................................................25 ' 3.2.2 Jurisdictional determinations of wetlands identified...................................26 3.2.3 Function and value of wetlands identified...................................................29 3.2.4 Types of other waters identified...................................................................30 ' 3.3 PROPOSED MITIGATION........................................................................................31 4. CONCLUSION..........................................................................................................32 ' 5. LITERATURE CITED.............................................................................................33 6. APPENDICES...........................................................................................................35 ' APPENDIX A: HYDROLOGY DATA.....................................................................................35 APPENDIX B: KING COUNTY SOIL MAPS/DATA................................................................40 ' APPENDIX C: DATA SHEETS .............................................................................................59 APPENDIX D:NATIONAL WETLAND INVENTORY MAP.....................................................77 APPENDIX E: KING COUNTY SENSITIVE AREAS INVENTORY MAP....................................79 ' APPENDIX F: HGM DATA SHEETS....................................................................................81 APPENDIX G: WETLANDS RATING FIELD DATA FORM................................................... 104 APPENDIX H: PHOTOGRAPH LOG.................................................................................... 129 List of Figures Figure1: Vicinity map............................................................................................................4 Figure2: General Site map ....................................................................................................6 Figures 3 -10: Delineation maps .......................................................................................... 10 ' Wetland Investigation&Delineation Report: DuvallAvenue NE Widening Project Page 1 The City of Renton September 23,2004 ' 1. Introduction ' 1.1 Authorizing agency and reason for the investigation ' This Wetland Investigation and Delineation Report was prepared by Widener and Associates in association with BERGER/ABAM Engineers, Inc. on behalf of the City of Renton to ' delineate the location and extent of waters of the U.S., including wetlands, within the project area of Duvall Avenue NE/138`h Avenue SE/Coal Creek Parkway SE. The City of Renton tproposes to improve a 0.8 mile segment of the roadway from SR900 (City of Renton) to SE 95`h Way in the City of Newcastle,Washington. tThe primary objective of the Duvall Avenue NE 138`h Avenue SE Coal Creek Parkway P rY o 1 / / Y SE ' delineation was to identify and delineate the waters/wetlands on the property consistent with regulatory guidance. The wetlands were delineated consistent with the Washington State ' Wetland Identification and Delineation Manual (Washington State Department of Ecology, March 1997) and the U.S. Army Corps of Engineers Wetland Delineation Manual (1987 Manual). ' Applicant: The City of Renton James P.Wilhoit Civil Engineer III/Project Manager ' Renton City Hall- 5`h Floor 1055 South Grady Way Renton,WA 98055 ' Phone (425) 430-7319 ' Landowners: City of Renton, City of Newcastle, King County,and Private Landowners. ' 1.2 Site locatlon/Project Area The proposed project area is located within the City of Renton, unincorporated King County, and the City of Newcastle, King County, Washington. The project site is located along the ' Duvall Avenue NE/138`h Avenue/Coal Creek Parkway SE roadway. It begins approximately 250 feet north of the intersection of Duvall Avenue NE and NE Sunset Boulevard (SR900) ' Wetland Investigation&Delineation Report:Duvall Avenue NE Widening Project Page 2 The City of Renton September 23,2004 1 1 1 and ends at SE 95`' Street to the north. North of the Renton City limits (between NE 231a and NE 24`h Streets), in unincorporated King County, the roadway is called Coal Creek 1 Parkway SE. The entire project area is located within the urban growth boundary (King County Comprehensive Plan, 2002). The legal geographic description of this area is: ' Township 23 North, Range 5 East, Section 3 and Township 24 North, Range 5 East, Section 34. Refer to the vicinity map provided in Figure 1. 1 1 1 1 1 i 1 1 1 1 1 1 1 Wetland Investigation&Delineation Report:Duvall Avenue NE Widening Project Page 3 The City of Renton September 23,2004 1 PORT ANGELES •EVERE7r QSEATTLE r EN TON r \ - - a �TACOMA A r ABERDEEN OLVMFIA r \ r — ' s N 32nd St R. �SE 92nd St � �yh�4,V 31t1 S1 ' SE 93,d St N 30th St® �� SE951h*Y SE 95th Way � ��9' ���h .>.�. � � `g'9 z SE y°Y✓alley N 28th St NE 261h St Skir 95th W0y S SE 95th PI J� 40 ® NE 27fh SL® o f i Project N z6th st a ti SE96th St Area 25th PI NE 26 h CtNE 25th Ct u S € NE 24th St 7E 24th St SE 100th St N 241h HE 23rd R 4 NE 24th NE 24th SE 100th PI w SE 101st St NE 23rd ryxD S 5 SE 102nd Ja ,23 NE 23rd NE 2 ' NE 22nd f NE 22nd PI a � NE 23rd St NE 22nd ME ZZnd PI NE 21st R NE 21st St i z �` r NE 22nd St NE 201h St. NE 20th % gy m NE 21st St g NCE,20 NE 21st PI NE 21st I €w b NE 20th 3 NE 10 HE 3 NE 19th St NE 19th 4, i w `ENE 18TH St < € 16th NE 17th y z On Qg c NE 5 NE 16th SL w NE 97 NE 17th St < z NE 17th SE 107th PI Y � x 14th J E _ NE 14th St € h o c x 5 NE 12th St. - 8 a 3 NE 121he3 < IVA a 11th PI. lit a 3 ,9 yOwl- 4 900 900 ; . NE 11th St. a 11th -s NE nth y W O 13 � .NE tan PI. n 2 Y NE 10th Ct. c0 NE 10th PI >E ' g a NE 10th St l $�S NF l NE 10th Ln. m NE With St NE 10TH St NE 90 b NE 9th FL 6y NE 101h - NE 9N St° ll— NE 9th SL Sl SE NE St NE 8th PI.` ` < t>E $ � NE 9 Ct. NE 9th Ct < ' < N 8th St NE 7 NE 8th CIL7thNE 8th St g NE 8th St NE 60 8 E Btb St NE 7th St NE 7th PI Gti�Y o� Duvall Ave NE/Coal Creek Parkway SE Figure • , BERGER/ABAM Reconstruction Project Vicinity Map ' 1.3 Project description ' 1.3.1 Purpose and Need The proposed roadway improvements will provide four lanes of travel, with curbs, gutters, sidewalks, and bike lanes along both sides of the road, as well as a closed stormwater drainage system and other necessary features. Traffic movement and safety will be improved by the ' addition of travel lanes, a center two-way left turn lane, sidewalk, illumination, and the realignment of the roadway to improve sight distances. The roadway improvements will also ' accommodate bicycles and pedestrians. ' 1.3.2 Existing Condition The north-south roadway corridor extends from the City of Renton to Newcastle and is zoned as business and residential. The project area is classified as a `minor' arterial within the City of Renton and a `principal' arterial north of the city limits in unincorporated King ' County. The roadway has gravel shoulders of varying widths. The area south of NE 21't Street is characterized by intermittent curbs, gutters, and sidewalks and a closed conveyance ' system. There are no curbs, gutters, or sidewalks in the area north of NE 21't Street. In the northern portion of the project area, the stormwater is conveyed in a combination of open ' ditches and culverts under street intersections and driveways. The road alignment curves to the west just north of SE 100`h Street and then again to the east just south of SE 95`h Way. ' Between SE 100`h Street and SE 95`h Way there are areas of open space, some of which are located in unincorporated King County. ' 1.3.3 Proposed Work The project involves widening of the road to provide four travel lanes, a center two-way left- turn lane with turn pockets at intersections, bicycle lanes, curb and gutter, and sidewalks, as ' well as including drainage improvements, landscaping, and illumination. Approximately midway along the King County portion of the roadway, the center turn lane will transition to an extruded curb where no driveways or side streets are present. Realignment of the road is proposed beginning at Station 204+00 to maximize the radii of curves in the alignment. Refer to the General Site Plan provided in Figure 2. ' Wedand Investigation&Delineation Report:DuvallAvenue NE Widening Project Page 5 The City of Renton September 23,2004 SE May volleyR a a me ° ay Creek 0) Newcastle Renton 4y Coq /c w r� � NE 25th PI NE 26th Ct e�A� Q wyS o NE 25th Ct ' � SE 100th St LW, NE 24th St NE 24th St Kin Count NE 23rd St Renton ' NE 22nd LL, NE 22nd PI uu z , Z a) w Q 4) NE 21 st St ' Q z C: NE 21 st PI C o ) v I j NE 20th St o NE 19th St Q ' 1 Q NE 19th St E a ' m E 18th St w AO z Whitman 4F/(9 � E 18th PI > o w" NE 17th S7SE 07th PI u d > Sops Q 0 0 1 Duvall Ave NE/Coal Creek Parkway SE Figure �AO BERGER/ABAM Reconstruction Project 1 xsixes ss ixc. �NTo General Site Map 1 ' 1.3 Date of site visits/identification of delineator(s) ' The delineation was carried out by Lesley Luttrell, Biologist with Widener and Associates, on August 2nd, Yd, and 7`'' of 2004. During the site visits on August 2"d and Yd, conditions were ' dry with temperatures ranging from 70 to 77 degrees. During the site visit on August 7`'', conditions were wet and humid with temperatures ranging from 65 to 70 degrees. 1 t 1 ' Wetland Investigation&Delineation Report:DuvallAvenue NE Widening Project Page 7 The City of Renton September 23,2004 ' 2. Methods 1 Wetlands were delineated consistent with the technical approaches outlined in both the ' Department of Ecology's Washington State Wetlands Identification and Delineation Manual (1997) and the U.S. Army Corps of Engineers Wetlands Delineation Manual (1987). The ' routine onsite determination method was used for areas less than 5 acres in size. Normal conditions were determined to exist within the project area, as it does not meet the definitions of an atypical or problem area. The area of investigation included the immediate vicinity of construction and areas within 100 feet of the project boundaries, except in those areas within unincorporated King County which were investigated within 300 feet. Open ditches within the project area that currently transport stormwater to city stormwater facilities were not ' investigated. ' A total of 17 data plots were established in potential wetland areas of relatively homogenous vegetation. Data plots were staked and marked with yellow flagging. Wetland boundaries ' were marked with sequentially numbered pink flagging. Mapping of the delineated boundaries was undertaken by the delineator and measured from features identifiable both in the field and ' on the surveyed plan sheets (fence lines, signage, edge of road, etc.) and marked on the plan sheets. The accuracy of mapping is estimated to be ± 2 feet (See Figures 3 — 10). Hydrology data was collected from field observation and reference documents including the ' May Creek Basin Plan (April 2001) and the Technical Appendices, Draft Environmental Impact Statement (February 1995). Precipitation averages and daily rainfall was obtained from www.weathcr.com. Climate records for the past 40 years were obtained from the Western Regional Climate Center website, www.wrcc.dri.edu. Upon site inspection, the presence of ' direct and indirect hydrologic indicators was used to infer wetland hydrology. Field indicators of wetland hydrology were determined in accordance with the U.S. Army Corps of Engineers ' guidelines. Data plots were located at sites that were considered to be representative of the area in general. Dominant species in each of the three strata (tree, sapling/shrub, and herb) were ' Wetland Investigation&Delineation Report:Duvall Avenue NE Widening Project Page 8 The City of Renton September 23,2004 ' identified at each location. Data plots for the tree strata were 30 feet in diameter and plots for the shrub and herbaceous communities were 10 feet in diameter. Open ditches, immediately ' adjacent to the roadway, were also delineated. Due to the proximity of the ditches to the road, the steep hillside, and/or residential lawns, vegetation was sampled 10 feet in both ' directions of the ditch and approximately 5 feet to each side. The oblong vegetation data plots were considered to be more representative of these areas. A determination of the ' presence of hydrophytic vegetation was made at each observation point in accordance with the U.S. Army Corps of Engineers guidelines. The determination of the presence of hydric soils was consistent with the Washington State ' and U.S. Army Corps manuals. The Soil Survey of King County Area, Washington provided information regarding the general characterization of the soils in the area, the parent material, ' as well as series, taxonomy and subgroup information. Soils were examined at the depth below the A horizon, or to 18 inches, whichever was greater. The soils were characterized by applying the hydric soil indicators as defined in the manual. ' Wetland systems at the project site were assessed using the Oregon Division of State Lands Hydrogeomorphic (HGM) - based Assessment of Oregon Wetland and Riparian Sites, ' Assessment Methods. The judgmental method was used to qualitatively assess the following function capacities: water storage and delay, sediment stabilization and phosphorus retention, ' nitrogen removal, primary production, thermoregulation, resident fish habitat support, anadromous fish habitat support, invertebrate habitat support, amphibian and turtle habitat, ' breeding waterbird support, wintering and migratory waterbird support, songbird habitat, and support of characteristic vegetation. Wetland systems at the project site were also rated using the Washington State Wetlands ' Rating System for Western Washington (Washington State Department of Ecology, 1993). The rating system is based on wetland functions and values such as habitat value, connectivity, ' and buffer areas. Ratings also include features such as sensitivity to disturbance, rarity, and irreplaceable ecological functions. ' Wetland Investigation&Delineation Report:Duvall Avenue NE Widening Project Page 9 The City of Renton September 23,2004 co fTito CC /f ` � I 466 1'rE��L 9 L t '•`� ' LL = L # Z n f L � / '✓ �V CA 4 rq f I I rn I II I � � � ' ' � L� •� 4- vt b off;:) •O J R, ��y �� Y��.. R�' - — -- _ ---- F URE _ _ I I I � I / �E� y � /.- ♦ rnr ro / 'I bj �'.'� ��.,v-° tee i' N -0 Z fcl FIGUR ' � "f �tcel �' `.fr¢` ..�•, �2 . 09 Ti u { I I I, FIGURE 10 Mt i i 1 URE I I i FIGURE 6 � l � mIY II i 1 l o 100 0 100 200 scale feet 33301 9TH AVENUE SOUTH """"°`"" �''" CITY OF DUVALL AVE NE/COAL CREEK PARKWAY SE 11/18/04 FEDERAL WAY,WASHINGTON bLs RECONSTRUCTION PROJECT scee�aeaAf RENTON 96003-2600 ° ^ owe VOICE: 206 31-2300 � DATUM t ( 3a cHK Planning/Building/Public works Dept. WETLAND DELINEATION INDEX FIG-3 A;,,,,,,�; ��''��� FAX: (206)431-2250 NO. REVISION BY DATE APPR -�pR 1 s.6 Los/So rdm llu Nov/81101 of 121E°M br 9.eshe N a 0'I200f IFAPWT-0l-OJa ICAmldgslWet/mdlxFq-O.Idy Ode:1 iC 0 WETLAND B ........... . ......... .......i :_ ... ........... .... ....... ............ .... .. ......— .. ............ .. ......... - - - _ ......... ....... ..... . ........... ... ......... Im ............ N04*55'30"E NE 4.................................................................................................................... ................................................................. 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REVISION BY DATE APPR APR I 3 -8 Losf SoMm lAu Nov/82004 of J2'4cML/b/SArostre �N e:0'120041FAPWT-04-OJ2ICAODIdvgsl*lldINFq-OS.dsg Scde:I (0 C? � \ Z (D LL House \ HOU"'NO, 4326 \I.0 fIII I I \ 0 10 C:) WETLAND B WETLAND B —--—-- GRAVEL DRIVEWAY WETLAND B G) + WETLAND B WETLAND B GRAVEL a) DRIVE WA Y w ?02,-. I 38 TH -14 .............. WETLAND C C) 0 — — — _ — — — _ — — — — — — \ 0-0- boo WETLAND C WETLAND C a�£ \ ' I o LEGEND mWETLAND AREA 20 0 20 40 scale feet 33301 9TH AVENUE SOUTH A 9-"k CITY OF DUVALL AVE NE COAL CREEK PARKWAY SE 11/18/ 4 FEDERAL WAY,WASHINGTON DES RECONSTRUCTION PROJECT — BMERIABAM 98003-2600 DWG FENTON EN' 1 A E f I N c VOICE:(206)431-2300DATUM 1' —CHK Planning/Building/Public Works Dept. WETLAND DELINEATION 7Z-6 FAX: (206)4314250 NO. REVISION BY DATE APPR i-1 S—d-7ft,162"&11204A(bSd— fWN—,, 0.IM4lfA'#T-04-aT21CADDIdgIWtkolovo-6W,,g S-1, 1 o U_ .......... .......... `0,0 '0 b (Z) ............ ..... 0 (0 Q 1. 0 Ac) WETLAND B ,: r ............ 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REVISION BY DATE APPR W' I I —APR 5 8 L-I`Sd, A,N,,182004 of 02.2"hyS9.,t, Fk Al— Scov�� I L OD io CD LL 0 / 1 0 1 - -o-—0 �o. ---- — - --_---- cb o - ---__ -' DP 9 WETLAND A / i. a • d DP 6 0 WETLAND A ��_ - -DP 1 _ - -- ....... .. '� Q1 1 `1'CD %PEEy� i s o. Q� �° o o 4/ / 9- Q O - C:7 � �Y ' 0 1 oo 0/ � C) . � I °a a a c o o.. a .......... o.. .... .a....... _ 1 0 1 1 1 1 LEGEND WETLAND AREA 1 20 0 20 40 1"=20- 1 : zO r scale feet 33301 9TH AVENUE SOUTH �,1=> fl DUVALL AVE NE/COAL CREEK PARKWAY SE a 11/16/04 ' FEDERAL WAY,WASHINGTON DES CITY OF TK RECONSTRUCTION PROJECT BERGER/ABAM 96003-2600 ""•�wc R EN TON _ 1 E N 6 1 N E E R 6 INC. VOICE: 206 31-2300L DnTUM FIG( cHK Planning/Building/Public works Dept. WETLAND DELINEATION -8 s` FAX: (206)431-2250 N0. REVISION BY DATE APPR APR s� 6 �6 ia15',mdm Ihu N,vl82A040112.44P.1/bf-S4estre F/eN, 0'I2004IFAPW7-04-0J2ICADDldvgsl W,-dl Mwg-08dwg Scale C? WETLAND A DP 2 LL WETLAND A ya \Ln DP 4 LLJ DP 3 WETLAND A COAL CREEK PA WA .......... ... ........ CITY 0'OUITY a �O 0 (D ,� / i i i tiY I � \\�� � u .s f f . ' 0 0t � �� f '/'/'i, r f' I (D(D' 0 (D DIP 12 v oa', 00 ,0 0 10 (D 0 ro LEGEND mWETLAND AREA 20 0 20 4 1 20' ' scale feet 1/18/04 .1i DUVALL AVE NE COAL CREEK PARKWAY SE 33301 9TH AVENUE SOUTH A PJft CITY OF FEDERAL WAY,WASHINGTON DES BER.GERIABAM 98003-2600 DWC 7K RENTON RECONSTRUCTION PROJECT EN 0 1 N E E R�8 I IN C. VOICE:(206)431-2300 71 i ,i I �DATUM Planning/Building/Public Works Dept. WETLAND DELINEATION FIG-9 CHK FAX: (206)431-2250 NO. REVISION BY DATE APPIR —A, 7 11 Cost Soda T&Nov/82004,112,44P#bSii`w,,i fkN—,. Ol2Od4lF4PWT04OJ2�C"IdvgI 19 dwy S-1, 1 ittl o Q \ \ \ 60 X WETLAND E ,•l WETLAND C / + UNNAMED STREAM WETLAND D ' LEGEND ® WETLAND AREA "=20' 20 0 20 40 1 OM4 scale feet 33301 9TH AVENUE SOUTH "�°" CITY OF OUVALL AVE NE/COAL CREEK PARKWAY SE 11/16/04 FEDERAL WAY,WASHINGTON DES RECONSTRUCTION PROJECT HER GER/ABAM 96003-2600 ^•-•p„,O F ENTON _ ' E M G I M E^E II 6 I KC. VOICE: 2Q6 31-2300 �—� UATUM ( � crK Planning/Building/Public Works Dept. WETLAND DELINEATION FIG—i o FAX: (206)131-2250 NO. REVISION BY DATE APPR APR siem 6 m 8 L-ISKe-%Noyis20,N,t02-21PAVeFSWrc:rye raN e:O x-1,: 3. Results and Discussion ' 3.1 Site description The project area is the 0.8 mile section of Duvall Avenue NE/138`h Avenue SE/Coal Creek ' Parkway SE between approximately 250 feet north of NE Sunset Boulevard (SR900) and SE 95`h Way. The area of impact includes an additional 100 feet to each side of the roadway. The ' total project area is approximately 23 acres. The existing land uses in the area are characterized as commercial and residential. This area is predominantly urban. 3.1.1 Topography ' The project area is located approximately 2 miles southwest of Cougar Mountain and 2 miles east of Lake Washington. The Duvall Avenue NE/138`h Avenue SE/Coal Creek Parkway SE ' project corridor is located west of the May Creek Valley and south of May Creek and May Valley Road. The roadway gradually climbs in elevation from 410 feet at NE Sunset ' Boulevard to 427 feet just south of 21" Street. The elevation begins to drop at this point and drops more rapidly after SE 100`h going northbound. The elevation of the roadway at SE ' 100`h Street is 421 feet and it drops to 360 feet at SE 95`h Way, over a distance of 1,400 feet. The roadway continues to descend northbound to an elevation of 315 feet at May Creek ' Road. The land slopes down from elevations above 400 feet west of the corridor to less than 300 feet near May Creek. ' 3.1.2 Land use ' In the past, mining, logging and farming activities took place in the region. Presently, land use in the immediate vicinity is business, commercial and residential. A series of housing ' developments surround the area as well as private and public open space. There are also some rural residences, small farms and forested land in the area. 3.1.3 Hydrology information ' The project area is located within the May Creek Basin in the lower basin sub-area (May Creek Basin Plan, April 2001). The basin is approximately 14 square miles and drains to Lake t Washington. The northern-most portion of the project area is approximately 1000 feet south of May Creek. The project corridor is located between uplands on the west side of the ' Wetland Investigation&Delineation Report: DuvallAvenue NE Widening Project Page 19 The City of Renton September 23,2004 ' roadway and the basin which is located north of the project area. The principal sources of hydrology to the area are stormwater runoff, surface flows,and groundwater. The hydrology in the area has been dramatically impacted by the increase of impervious ' surface from developments in the upland areas and has resulted in an increase of stormwater runoff. Culverts and ditches direct stormwater down-slope toward May Creek, located north ' of the project area. Increased runoff has eroded hillsides and exposed some areas to groundwater seepage. Surface water and groundwater flows are greater in the winter months ' during periods of heavy precipitation and a higher water table. Precipitation in the area is frequent during late fall and winter with light rainfall in the summer and an average relative humidity between 50 and 90 percent (Soil Survey of King County Area, Washington). The average annual precipitation is approximately 35 inches, with 75 percent of annual precipitation occurring from October to March (Soil Survey of King County ' Area, Washington). According to the NRCS, the growing season is from March 23`d to November 18`h, approximately 240 days. In order to have wetland hydrology for 12.5 percent ' of the growing season, the area must be inundated or saturated to the surface for 30 consecutive days. According to climate records for the past 40 years, the months of June, July, and August have the lowest averages of precipitation, ranging from 1.46 to 0.77 inches a month. The site visits took place during the driest period of the year. Those areas with positive indicators of hydrology upon investigation were assumed to have sufficient hydrology for 12.5 percent of the growing season. The site visits were conducted during the dry season on August 2"d, 3`d, and 7`h of 2004. ' Temperatures ranged from 70' to 77' with no rainfall during the site visits on August 2nd and 3`d. Zero precipitation was recorded for 3 weeks preceding these visits. During the site visit ' on August 7`h, temperatures ranged from 65 to 75 degrees and total rainfall recorded for the day was 0.06 inches. Precipitation for the day before the site visit was recorded as 0.48 inches. ' During all of the site visits, standing water was observed in some of the roadside ditches on both the east and west sides of Duvall Avenue NE/138`h Avenue SE/Coal Creek Parkway SE, ' as well as the ditches within 100 feet of the project area. Culvert systems exist in the hillside west of the roadway, directing runoff through the hill and down to the open ditch. Water was Wetland Investigation&Delineation Report:DuvallAvenue NE Widening Project Page 20 The City of Renton September 23,2004 ' observed to be flowing from one of the hillside culverts into the ditch at the time of the visits. Drainage and erosion patterns are apparent on the hillside. Drainage along the west side of the corridor is bypassed through an 18 inch culvert located ' north of SE 100`h Street. The culvert extends under Coal Creek Parkway SE and directs the flow from the west side of the roadway to an unnamed stream channel in the ravine located ' on the east side. The drainage along the northern portion of the project corridor passes through an 18 inch culvert under SE 95th Way and continues north toward May Creek. The drainage ditch south of SE 100''' Street is not hydrologically connected to the northern drainage. According to the analysis performed by Sajan, Inc., included in Appendix F of the Draft EIS, the west side ditch north of SE 100`h Street accommodates a 29.7 acre drainage basin and the area south of SE 100`h Street accommodates a 23.8 acre drainage basin. No water was observed to be flowing from the hanging culvert outlet north of SE 100`h Street ' during the time of the visits; however, it was apparent from the drainage patterns on the hillside beneath the culvert that hydrology is present. Water was observed to be flowing north in the open ditch along the east side of the roadway. The source of some of this water was determined to be leaking water supply lines, confirmed by water samples containing chloride ' and by the City of Renton maintenance personnel. The water flows down into the ravine just north of SE 100`''near the hanging culvert. The stream channel in the ravine was steep and ' the flow was quite low during the site visit. The water was observed to be flowing in a north- easterly direction to other tributaries and wetlands associated with May Creek. According to ' the report prepared by Sajan, Inc., the drainage flows from the culvert into a 3 foot channel with 1:1 side slopes and travels in a northerly direction to May Creek. Positive wetland hydrology indicators were found in the open ditches along the roadway, as ' well as a small basin in the ravine east of the roadway near the hanging culvert at SE 100`h and a larger wetland approximately 440 feet east of the roadway. Primary sources of hydrology in the area are surface runoff, stormwater runoff, and groundwater. Data plots 1, 2, 3, 7, 8, 10, 14, 15, and 17 exhibited either primary or secondary indicators such as ponded water, soil ' saturation, oxidized roots. Refer to the data sheets provided in Appendix C and the summary provided in Table 1. Wetland Investigation&Delineation Report:DuvallAvenue NE Widening Project Page 21 The City of Renton September 23,,2004 ' 3.1.4 Plant communities The vegetation in the area is dominated by big-leaf maple (Acer macmphyllum), red alder (Alnus ' rubra), Himalayan blackberry (Rebus pmcerus), Trailing blackberry (Rebus ursinus), western red cedar (Thuja plicata), sword fern (Polystichum munitum), and reed canary grass (Phalan's ' arundinacea). Invasives such as Himalayan blackberry (Rebus procerus) and reed canary grass (Phalaris arundinacea) were prevalent throughout the project area. Open ditches were comprised of invasive herbaceous species. The upland areas are classified as forested and shrub communities, comprised of mature individuals and new growth. Data plots 1 through 10, and 13 through 17 were dominated by hydrophytic vegetation communities. Plots 11 and 12 were dominated by upland species. Plots 1 through 9 and 13 through 16 are located in open ditches. These plant communities are best described as palustrine emergent, dominated by grasses and weeds. Data plots 1 and 2 were dominated by reed canary grass (Phalaris arundinacea) (FACW). Other species included herb robert (Geranium ' mbertianum) (UPL), buttercup (Ranunculus repens) (FACW), birdsfoot trefoil (Lotus corniculatus) (FAC), and lady fern (Athyrium filix femina) (FAC). Data plots 3 and 4 were dominated by reed ' canary grass (Phalaris arundinacea) (FACW) and field horsetail (Equisetum arvense) (FAC). Watercress (Rorippa nasturtium-aquaticum) (OBL) was observed to be growing in standing water ' at the culvert outlet. Data plot 5 was dominated by reed canary grass (Phalaris arundinacea) (FACW) and colonial bentgrass (Agrostis tenius) (FAC). Plots 6 and 7 were dominated by reed canary grass (Phalaris arundinacea) (FACW). Other species observed were common velvet grass (Holcus lanatus) (FAC) and lady fern (Athyrium fzlix femina) (FAC). Plots 8 and 9 were ' dominated by reed canary grass (Phalaris arundinacea) (FAC) and field horsetail (Equisetum arvense) (FAC). Data plots 13 and 14 were dominated by reed canary grass (Phalaris arundinacea) (FACW), colonial bentgrass (Agrostis tenius) (FAC), as well as lawn grasses which were mowed and could not be identified. Refer to Data Sheets provided in Appendix C. East of the roadway, data plots 15 and 16 were dominated by reed canary grass (Phalan's ' arundinacea) (FACW), colonial bentgrass (Agrostis tenius) (FAC), and St.John's wort (Hypeticum anagalloides) (FAC). Data plots 10, 11, 12, and 17 were located in the forested ravine east of ' the roadway. The vegetation in these areas is palustrine forested, shrub, and emergent communities. Data plot 10 was dominated by skunk cabbage (Lysitchitum americanum) (OBL) ' Wedand Investigation&Delineation Report:Duvall Avenue NE Widening Project Page 22 The City of Renton September 23,2004 ' and piggy-back (Tolmiea men#esii) (FAC). Data plot 11, upland of plot 10, was dominated by big leaf maple (Acer macrophyllum) (FACU), red alder (Alnus rubra) (FAC), vine maple (Acer ' circinatum) (FAC), Indian plum (Oemleria cersiformis) (FACU), and sword fern (Polystichum munitum) (FACU). Data plot 12 was also dominated by upland species such as big leaf maple ' (Acer macrophyllum) (FACU) and sword fern (Polystichum munitum) (FACU). Data plot 17, located adjacent to a stream in the ravine, was dominated by red alder (Alnus rubra) (FAC), ' salmonberry (Rebus spectabilis) (FAC), stinging nettle (Urtica dioica) (FAC), field horsetail (Equisetum arvense) (FAC) and buttercup (Ranunculus repens) (FACW). Refer to Data Sheets ' provided in Appendix C and the summary provided in Table 1. ' 3.1.5 Soils mapped and found The soils at the project area are mapped as Alderwood gravelly sandy loam, 6 to 15 percent; ' Alderwood gravelly sandy loam, 15 to 30 percent slopes; and Everett gravelly sandy loam, 5 to 15 percent slopes (Soil Survey of King County Area, Washington). The soils in the project ' area are non-hydric according to both national and local hydric soils lists. Soils at the project site were found to be loam, sandy loam, and sandy clay loam within the first 6 inches with the next 12 inches being sandy loam, sandy clay, and sandy clay loam. Hydric soils were found at data plots 1, 2, 3, 5, 6, 7, 8, 10, 12, 14, 15, and 17. Gleyed soils were found at data plots 1 and 10; these soils were grey in color and had distinct redoximorphic features, such as mottling and sulfuric odor. Soils at other plots ranged from dark olive-brown (5Y 5/2) to dark reddish-brown (2.5YR 3/1) and dark brown in color ' (10YR 2/1). Data plot 12 soil was dark brown (10YR 2/2) with mottling with sandy loam texture. ' Non-h dric soils were found at data lots 4 9, 13, and 16. Plots 4 and 9 had dark yellow- brown p � Y ' brown soils (10YR 3/2 to 10YR 3/4)with no mottling. Soil samples were not taken at upland data plot 11 due to field conditions. Data plot 11 was located on a 1:1 slope and was too ' steep to dig a data plot. A drastic change in elevation and vegetation, as well as a lack of hydrologic indicators indicated that soils at this plot would likely be non-hydric. Soils at data ' plot 13 were dark brown 10YR 3/2 with no mottling and the texture was sandy loam. Data ' Wetland Investigation&Delineation Report:Duvall Avenue NE Widening Project Page 23 The City of Renton September 23,2004 ' plot 16 had light brown soils (10YR 4/3) with no mottling and the texture was sandy. Refer to Data Sheets provided in Appendix C and the summary provided in Table 1 below. Table 1: Summary of Data Plots ' Data Plot Hydrophytic Wetland Hydric Soils? Is Data Plot located Vegetation? Hydrology? in a Wetland? ' 1 Yes Yes Yes Yes 2 Yes Yes Yes Yes ' 3 Yes Yes Yes Yes 4 Yes No No No 5 Yes No Yes No ' 6 Yes No Yes No 7 Yes Yes Yes Yes ' 8 Yes Yes Yes Yes 9 Yes No No No 10 Yes Yes Yes Yes 11 No No No No ' 12 No No Yes No 13 Yes No No No ' 14 Yes Yes Yes Yes 15 Yes Yes Yes Yes ' 16 No No No No rr7- Yes Yes Yes Yes See Data Sheets provided in Appendix C 3.1.6 Existing wetland mapping ' According to the National Wetlands Inventory (NWI) digital data webpage, there are no known wetlands located within the project area. According to the King County Sensitive ' Areas Map (2003), no sensitive area wetlands are identified within the project area. Refer to the National Wetlands Inventory Map and the King County Sensitive Areas Map provided in ' Appendix E. ' Wetland Investigation&Delineation Report:DuvallAvenue NE Widening Project Page 24 The City of Renton September 23,2004 ' 3.2 Findings 3.2.1 Size and location of wetlands identified ' Wetlands were identified within the ditch lines along Duvall Avenue NE/138' Avenue SE/Coal Creek Parkway SE as well as in the steep ravine located east of the roadway. Four ' wetlands were delineated within the project area, and one wedand (Wetland D) was identified outside of the project area. The ditch lines (Wetlands A, B, and C) are classified as palustrine ' emergent communities, dominated by reed canary grass (Cowardin, et al., 1979). Wetland E is classified as palustrine scrub-shrub and emergent (Cowardin, et al., 1979). Refer to Table 1. Wetland A (0.07 acres) is located within the drainage ditch along the west side of the roadway. ' It begins approximately 200 feet north of SE 100`h and continues north beyond SE 95`h Way, and outside the project area. Wetland A includes the open ditch along the side street within 100 feet of the roadway, as these areas are connected through a culvert. The primary source of hydrology to the open ditch was determined to be stormwater runoff; however ' groundwater seepage contributes as well. ' Wetland B (0.06 acres) is located on the west side of the roadway and extends within a ditch line north from NE 21" Street to the culvert just north of SE 100t' Street. The water then ' flows through the culvert and into a stream channel in the ravine, east of the roadway. The ' primary source of hydrology to the ditch was determined to be stormwater runoff from the residential area west of Duvall Avenue NE/138`h Avenue SE. Groundwater may contribute ' to the hydrology as well. Wetland C (0.05 acres) is located within a ditch line on the east side of the roadway and extends north from NE 21't Street to approximately 300 feet north of SE 100`h Street. The ' water flows northward through a culvert system within the ditch, under driveways, and down into the unnamed stream channel in the ravine. The primary source of hydrology to the open ' ditch system of Wedand C is also stormwater runoff and groundwater seepage. In some areas, larger volumes of water were observed to be retained within the open ditches as a result of more than one water line leak. Some culvert outlets were also found to be obstructed by sediment and litter, thereby preventing the flow of water Wedand Investigation&Delineation Report: Duvall Avenue NE Widening Project Page 25 The City of Renton September 23,2004 The edge of Wetland D is located approximately 440 feet east of the roadway, outside of the ' project area. Upon site investigation, the southeastern corner of the wetland was thought to be within 300 feet of the project area and was delineated accordingly. However, surveyed project maps and aerial photos provided by Berger/ABAM Engineers, Inc. confirmed that the wetland edge is approximately 400 feet from the roadway, placing this wetland beyond the ' project boundaries and area of impact. ' Wetland E (0.03 acres) is located within a small basin, approximately 35 feet from the edge of the roadway within the steep ravine on the east side of 138`h Avenue SE. The elevation drops ' from 408 feet at the edge of the road to 381 feet at the bottom of the basin, approximately a 70 percent slope. The wetland is located at the toe of the slope. The hydrology source was ' determined to be groundwater and surface runoff. This wetland is not connected to the unnamed stream or Wetland D. ' A wetland stud n y done by Adolfson and Associates, Inc., in November 1993, identified three ' wetlands within the project area. Two of these wetlands were also delineated in this investigation (Wetlands D and E); however Wetland P6, identified in the 1993 study, was not ' identifiable during this investigation. Data plot 12 was located in the vicinity of P6. Findings concluded that hydric soils existed at the site; however no primary or secondary indicators of hydrology were observed and upland vegetation communities were dominant. Refer to Table 1. It is concluded that alterations to drainage systems and surface hydrology since the study in ' 1993,has resulted in the lack of wetland hydrology at this site. ' 3.2.2 jurisdictional determinations of wetlands identified Based on the data collected, Wetlands A, B, C, and E meet all three wetland parameters as 1 defined by the Corps of Engineers. As discussed in further detail below, of these four wetlands, only A, B, and C are jurisdictional under the Corps regulations. Under King County's, the City of Renton's, and the City of Newcastle's regulations, only wetland E is jurisdictional. As previously mentioned, Wetland D is approximately 400 feet from the ' roadway,placing this wetland beyond the project boundaries and area of impact. ' Wedand Investigation&Delineation Report:DuvallAvenue NE Widening Project Page 26 The City of Renton September 23,2004 1 ' Wetland E was determined to be an isolated wetland and is therefore non-jurisdictional per the Corps regulations. It is not connected to a water body nor is it associated with another ' wetland except by infiltration and groundwater connectivity, which does not provide a sufficient connection between the filling activity to be regulated and interstate commerce, as defined by the USACE. Isolated wetlands are regulated by King County, City of Renton, and the City of Newcastle. Refer to Table 2. Wetlands A, B, and C are wetlands which have been inadvertently created from upland as a result of the excavation of ditch channels for the conveyance of stormwater drainage along Duvall Avenue NE/Coal Creek Parkway SE. As these wetlands exhibit all three wetland parameters and are connected to another `water of the US' downstream, they are regulated by the USACE (jeers. comm. Gail Terzi, Nov 04). According to the newly adopted King County Critical Areas Ordinance 15051 (K.C.C. chapter 21A.06), the wetland definition reads as follows: `except for artificial features intentionally made for the purpose of mitigation, `wetland"does not ' include an artificial feature made from a nonwetland area, which may include, but is not limited to: 1) A surface water conveyance for drainage or irrigation; 2) A grass-lined swale; 3)A canal; 4) A flow control facility;5)A wastewater treatment facility;6)A farm pond;7)A wetpond;8)Landscape amenities;or 9)A wetland created after July 1, 1990 that was unintentionally created as a result of the construction of a road, street, or highway." Wetlands A, B, and C are best described as "artificial wetlands," and therefore are not regulated by King County Code. Refer to Table 2. Tide 4, Chapter 3 of the Renton Municipal Code reads as follows: `Regulated wetlands do not ' include those artificial wetlands intentionally created from nonwetland sites for purposes other than wetland mitigation, including, but not limited to, irrigation and drainage ditches,grass-lines swales, canals, detention ' facilities, wastewater treatment facilities,farm pond, and landscape amenities, or those wetlands created after July 1, 1990 that were unintentionally created as a result of the construction of a road, street, or highway." Title 18, Section 18.06.710 of the Newcastle Municipal Code reads as follows: 'Wetlands do not include those artificial wetlands created from nonwetland sites, including, but not limited to, irrigation and ' drainage ditches,grass-lined swales, canals, detention facilities, wastewater treatment facilities,farm ponds, and landscape amenities, so long as the wetland is limited to a clearly defined area corresponding to the intentionally ' created feature." It is concluded that Wetlands A, B, and C are non-jurisdictional wetlands per Renton and Newcastle Municipal Codes as well. Refer to Table 2. ' Wedand Investigation&Delineation Report:DuvallAvenue NE Widening Project Page 27 The City of Renton September 23,2004 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Table 2: Wetlands identified within project area Wetland Description and Size Cowardin Impacted? Jurisdictional per Jurisdictional per Jurisdictional per Location (acres) Class Corps of Engineers? King County? City of Renton? Wetland A* 0.07 PEM Yes Yes No No Upland open ditch,west of "Artificial"wetlands are "Artificial"wetlands are roadway,north of SE 1001h not regulated. not regulated. St. Wedand B 0.06 PEM Yes Yes No No Upland open ditch,west of "Artificial"wetlands are "Artificial"wetlands are roadway,south of SE 100d, not regulated. not regulated. St. Wetland C 0.05 PEM Yes Yes No No Upland open ditch,east of "Artificial"wetlands are "Artificial"wetlands are roadway,south of SE 100th not regulated. not regulated. St. Wetland E 0.03 PEM,PSS No No Yes Yes Small basin at toe of slope in Isolated wetland, fed by the ravine,east of the hillside seep,no surface roadway,north of SE 100th. connection to other water of the US. PEM=Palustrine emergent,PSS=Palustrine scrub-shrub *Wetland A is the only wetland partially located in the City of Newcastle,which does not regulate "artificial"wetlands. **Wetland D is located outside of the project area. Wetland Investigation&Delineation Report:Duvall Avenue NE Widening Project Page 28 The City of Renton September 23,2004 3.2.3 Function and value of wetlands identified ' Four of the wetland sites investigated will be impacted by the proposed project. Therefore, a function and value assessment was performed using the HGM Judgmental Method. The ' HGM classification is based on the location of the wetland within the landscape, dominant water source, and direction of water flow. The judgmental method involves the evaluation of ' each function by assessing each indicator and calculating a numeric estimate of function capacity. The judgmental method was used to qualitatively assess the following function ' capacities: Water storage and delay, sediment stabilization and phosphorus retention, nitrogen removal, primary production, thermoregulation, resident fish habitat support, anadromous ' fish habitat support, invertebrate habitat support, amphibian and turtle habitat, breeding waterbird support, wintering and migratory waterbird support, songbird habitat, and support ' of characteristic vegetation. ' Two HGM classes were present within the project area: depressional and slope. Wetlands A, B, and C are classified as depressional. Depressional wetlands typically occur in natural ' topographic depressions and receive their hydrology from surface runoff While Wetlands A, B, and C receive hydrology from the hillside and adjacent roadway (surface and stormwater ' runoff), these drainages are man-made. Wetland E is classified as a slope wetland. Slope wetlands are located on or near the base of a slope and are often fed by seepage as in this case. Wetland E is located at the toe of a steep ' slope and appears to receive most of its hydrology from groundwater seepage. ' None of the wetlands within the project area (A, B, C, and E) are characterized as having highly functional capacities. According to the HGM assessment, these wetlands have low to ' moderate functional capacity for water storage and delay, sediment stabilization, nitrogen removal, and primary production. They have low habitat support function for invertebrates, ' amphibians, turtles, songbirds, breeding waterbirds, and wintering and migratory waterbirds. These wetlands do not have thermoregulation, resident fish habitat support, or anadromous ' fish habitat support functional capacities. Refer to the HGM Data Sheets provided in Appendix E. ' Wetland Investigation&Delineation Report:Duvall Avenue NE Widening Project Page 29 The City of Renton September 23,,2004 ' Assessment of wetland values was performed using the Washington State Wetlands Rating System for Western Washington, as per the King County Critical Areas Ordinance (CAO ' Draft, 2004). This system is a qualitative method used to identify and assign a relative value for vegetated wetlands. These assigned values are used to make management decisions in regard to levels of impact, avoidance requirements, buffer requirements, mitigation and replacement ratios, and permitted uses. This system does not replace the functional ' assessment which is needed for mitigation planning. Wetlands are evaluated and rated as Category I, II, III, or IV, with Category I being the most valuable. Based on this system, ' Wetlands A, B, C, and E were rated as Category III wetlands. Refer to the Wetlands Rating Field Data Forms provided in Appendix G. Wetland A, B, C, and E were determined to be significantly disturbed by impervious surfaces, ' grading, and ditching. Because A, B and C were located within a ditch line, stormwater runoff from urban areas is the primary source of hydrology. These wetlands merit a low score for ' size and ecological function, however, these wetlands are hydrologically connected to a riparian corridor. They merit low scores for lack of vegetation classes and plant diversity. Wetland E was determined to be significantly disturbed by impervious surfaces, grading, and ' ditching. Wetland E is located at the toe of a steep slope. Groundwater seepage and surface runoff from urban areas is the primary source of hydrology. This wetland merits a low score ' for size and ecological function, as it is considered to be hydrologically isolated within the riparian corridor. 3.2J� Types of other waters identified Wetlands were identified within the project corridor as detailed in Section 3.2.1. All other drainages, ditch lines, and depressions within the project limits were investigated and ' determined not to contain potential wetlands. One intermittent stream was found to be located within the project limits. The stream carries stormwater runoff from Coal Creek ' Parkway SE within the channel located in the ravine on the east side of the project corridor. During the site visits conducted by Adolfson and Associates in September 1993, water was ' not observed to be flowing in the stream (Stream P9). During the site visit conducted by Widener and Associates in August 2004, stream flow was low and was observed to be flowing ' Wetland Investigation&Delineation Report:Duvall Avenue NE Widening Project Page 30 The City of Renton September 23,2004 r ' from the ditch drainage down into a steep channel in the ravine. The stream meanders in a northeasterly direction outside of the project area toward May Creek. While no water was ' observed to be flowing from the hanging culvert under Coal Creek Parkway SE, drainage patterns indicate that water from this culvert flows into the stream channel as well. rHydrologic inputs to this unnamed stream system also include water from more than one leaking water line. No other streams or waters of the U.S. were identified within the project r area. 3.3 Proposed]Mitigation The Corps of Engineers require that mitigation be undertaken to compensate for permanent impacts to wetlands. The goal being that no net loss of wetland functions or values are rincurred as a result of the project. In addition, those areas impacted temporarily must be restored to their former condition. Once wetland impacts have been identified and quantified, ' a wetland mitigation and monitoring plan will be developed, in accordance with USACE guidelines and the King County Critical Areas Ordinance (CAO). 1 r r 1 1 r 1 i 1 rWetland Investigation&Delineation Report:DuvallAvenue NE Widening Project Page 31 The City of Renton September 23,2004 r ' 4. Conclusion ' Based on the data collected and site visits conducted in August 2004, four palustrine wetlands were identified and delineated within the Duvall Avenue/Coal Creek Parkway SE project area totaling approximately 0.18 acres. Wetlands A, B, and C are classified as palustrine emergent wetlands. The primary source of hydrology to these wetlands is surface runoff Wetland E is ' an isolated, palustrine emergent/scrub-shrub wetland. The primary source of hydrology to this wetland is groundwater seepage and surface flow. These wetlands fall into two HGM ' classifications; depressional and slope. Overall function and value of both wetland types is considered to be moderate to low. All four wetlands are rated as Category III per the ' Washington State Wetlands Rating System for Western Washington (Washington State Department of Ecology, 1993). Based on the data collected, Wetlands A, B, C, and E meet all three wetland parameters as ' defined by the Corps of Engineers 1987 Wetlands Delineation Manual and the Washington State Wetlands Delineation Manual. Wetlands A, B, and C are jurisdictional under the ' USACE regulations but are non-jurisdictional per the King County CAO and the Renton and Newcastle Municipal Codes. Wetland E is an isolated wetland and is therefore not regulated ' by the Corps of Engineers. Isolated wetlands are not exempt from King County, Renton, or Newcastle codes; however,Wetland E is not expected to be impacted by the proposed project ' activities. This report documents the investigation, best professional judgment and conclusions of the investigator. It should be considered a Preliminary Jurisdictional Determination until it has been reviewed and approved in writing by the US Army Corps of Engineers in accordance with Section 404 of the Clean Water Act. ' Wetland Investigation&Delineation Report: Duvall Avenue NE Widening Project Page 32 The City of Renton September 23,,2004 ' 5. Literature Cited Adamus,P.R. 2001. Guidebook for Hyrdogeomorphic (HGM) based Assessment of Oregon Wetland and Riparian Sites: Statewide Classification and Profiles. Oregon Division of State Lands, Salem, OR. Cowardin,L.M.V. Carter, F.C. Golet, and E.T. LaRue. 1979. Classification of Wetlands and Deepwater Habitats of the United States. FWS/OBS-79/31. U.S. Fish and Wildlife Service. Draft Environmental Impact Statement For Improvements to Coal Creek Parkway SE Renton ' City Limits to SE 72°d Street (February 1995). Appendix F: Environmental Phase Surface Water Technical Information Report. Prepared by Sajar Inc. for King County ' Department of Public Works. ' Draft Environmental Impact Statement For Improvements to Coal Creek Parkway SE Renton City Limits to SE 72"d Street (February 1995). Appendix G: Coal Creek Parkway ' Southeast Wetlands Study. Prepared by Adolfson Associates Inc. for W&H Pacific. Executive DRAFT King County Critical Areas Ordinance 2004 (Title 21A) to be adopted December 2004. Environmentally Sensitive Areas. 21A.24. King County Sensitive Areas Map (2003). ' http://www.metrokc.Vav/gis/mapi2ortal/iMAP main.htm (Searched July 30,2004). ' May Creek Basin Action Plan (April2001). htip://dnr.tnetrokc.gov/wlr/watersheds/cedrLKWA/May Plan.httn 1 Munsell® Soil Color Charts, 2000. NRCS 1995, Hydric Soils of Washington. United States Department of Agriculture—Natural ' Wetland Investigation&Delineation Report:DuvallAvenue NE Widening Project Page 33 The City of Renton September 23,2004 ' Resources Conservation Service ' Personal Communication: Gail Terzi, Environmental Analyst, US Army Corps of Engineers, Seattle District, November 16, 2004. Reed,P.B. 1988. National List of Plant Species that Occur in Wetlands: Northwest Region (Region 9). ' The Weather Channel: http://www.weatlier.com (searched August 51h and 9th,2004) ' USDA 1970, Soil Survey of King County Area,Washington. United States Department of Agriculture - Soil Conservation Service U.S. Fish and Wildlife National Wetlands Inventory (searched August 10, 2004) ' htW://wedandsfws.er.usgs.gov/wdnds/viewer.htrn ' Washington State Department of Ecology, March 1997. Washington State Wetland Identification and Delineation Manual. Washington State Department of Ecology, August 1993. Washington State Wetlands Rating ' System-Western Washington. Second Edition,Publication # 93-74. ' Western Regional Climate Center website (searched August 9, 2004) http://www.wrcc.dri.edu Wetlands Training Institute, Inc. 2001. Field Guide for Wetland Delineation: 1987 Corps of ' Engineers Manual. Glenwood,NM.WTI 01-2 143pp. ' Wedand Investigation&Delineation Report:DuvallAvenue NE Widening Project Page 34 The City of Renton September 23,2004 I 1 6. Appendices 1 Appendix A:Hydrology Data 1 ! ! 1 I 1 1 1 1 1 1 1 ! Wetland Investigation&Delineation Report Duva!lAvenzre 1VE Widening Project Page 35 The City of Ren-on September 23,2004 1 SEATTLE TCOMA WSCMO AP, WASHINGTON - Climate Summary Page 1 of 1 SEATTLE TCOMA WSCMO AP, WASHINGTON 457473 Period of Record Monthly Climate Summary Period of Record : 7/23/1931 to 3/31/2004 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Average Max. Temperature 44.8 48.9 52.1 57.3 64.1 69.4 75.0 74.7 69.5 59.4 50.5 45.5 59.3 (F) Average Min. Temperature 34.9 36.6 38.1 41.2 46.4 51.3 54.6 54.8 51.3 45.3 39.6 35.9 44.2 (F) Average Total Precipitation 5.71 4.10 3.73 2.56 1.66 1.46 0.77 1.08 1.72 3.51 6.03 5.82 38.15 Average Total SnowFall (in.) 5.1 1.7 1.3 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.8 2.6 11.7 Average Snow Depth (in.) 0 0 0 0 0 0 0 0 0 0 0 0 0 Percent of possible observations for period of record. Max. Temp.: 75.6%Min. Temp.: 75.6%Precipitation: 75.6% Snowfall: 69.8% Snow Depth: 69.9% Check Station Metadata or Metadata graphics for more detail about data completeness. Western Regional Climate Center, wrccgdri.edu http://www.wrcc.dri.edu/cgi-bin/cliMAIN.pl?w t Monthly Weather Planner Page 1 of 3 t Welcome. Customize weather.com Home My Page I Health I Travel I Driving I Events I Recreation I Home&Garden World I News I Maps I Weather Tools I Si Enter city or US zip See weather related to...'"j O Get 1 click acce to your local weal Home > Monthly Forecast for Renton, WA Yesterday Current Weekend 10-Day Month (QA I I sin alffm 0 0 Monthly Weather Planner rUmd► ,Aulu M4us.cx�. for Renton, WA OUR STAND: July Next Month k Sun Mon Tue Wed Thu Fri Sat 1 I 2 0`I 3 i ` OBSERVED; OBSERVED; OBSERVED loll I Hi 750F Hi 71°F HI 710F - Lo 57°F Lo 570F i Lo 60°F 1 Precip (in)A Precip(in) Precip (in) 0.00in. it 0.00in. _.' 0.00in. 4 5 6 7: 8 ¥ 9 C► 10 cr OBSERVED OBSERVED OBSERVED,:OBSERVED,-OBSERVED:jOBSERVEDQBSERVEDDo you kno the temperature Hi 730F Hi 80°F Hi 69°F Hi 690F Hi 720F Hi 710F Hi 730E out-side riqht now? Lo 590F Lo 58°F Lo 580F Lo 530F Lo 570F Lo 570F ` Lo 570FWe Do!Get It Free! I Precip (in) Precip (in) .Precip(in) Precip (in) Precip (in) Precip (in)''Precip (in) l 0.00in. 0.00in. 0.011n. 0.00in. .' 0.00in. '„ 0.03in. 0.141n. start w Advertise Locally in Seattle! It's Easy_ l 11 12 13 14 15 16 17 0 !OBSERVED 'OBSERVEDF OBSERVED 'OBSERVEDI OBSERVED OBSERVED;':OBSERVED Explore Related Sites l Hi 750E Hi $1°F Hi 830E Hi 810E Hi 770E Hi 830E Hi $5°F Lo 530F Lo 58°F Lo 61°F Lo 60°F Lo 590F Lo 58°F I' Lo 640F Access Your PC From Anywhere'" GOT► °YK" here for a FREE TRIAL. Precip (to} :Precip (in) Precip(in) Precip p(�n) Precip (in)Precip(m) Precip (in) AmericanSingles. Search Singles 0.00in. OAOin. 0.00in 0.00in. 0.00in. 0.00in. ? 0.00in. View Photo Profiles - Free! 18 19 20 21 22 23 24 ' OBSERVED OBSERVED :OBSERVED :OBSERVED ;OBSERVED OBSERVED;.OBSERVED: GO Shopping i HI 870F Hi 79°F is Hi 80°F Hi 800F " Hi 880F Hi 95°F ' Hi 95°F Lo 640F F' Lo 65°F .' Lo 64°F Lo 61°F i! Lo 630F Lo 630F Lo 640F Precip (in) Precip (in) Precip (in) Precip (in)[ Precip (in) "Precip (in) Precip (in) 0.00in. 0.00in. 0.01in. 0.00in. l 0.00in. 0.00in. 0.00in. 13 25 26 27 28 29 30 i 31 t `OBSERVED;',OBSERVED OBSERVED OBSERVED' OBSERVED 'OBSERVED i.OBSERVED l (� Hi 770E Hi 810E Hi 840E Hi 850E Hi 870E Hi 750E Hi 830E ! Lo 63°F Lo 570F Lo 580E Lo 61°F Lo 620F Lo 61OF Lo 58°F i' htt ://www.weather.com/weather/monthl -- P y/USWA0369.month— 1 8/11/2004 mommy weather darner Page 2 of 3 Precip (in) 'Precip (in) , Precip (in) ' Precip (in) Precip (in) Precip (in)', Precip (in)0.00in. 0.00in. 0.00in. 0.001n. 0.00in. 0.00in. 0.00in. What! S Uf OBSERVED: As reported at Renton, WA Credit FORECAST: August 11 11:53 AM PDT Month-to-Date Totals Score tuPod Nt Temperatures Precipitation 0 100°F Record High r 740 Highest - so far 95OF r $60 Know Yo 75°F Av . High M nth T Lowest 530F 55°F Av . Low to ate NEW! Visit The Weather Channel Stc so far Q;S in. 430F Record Low Special Offers in Renton, WA Additional Resources Renton Apartments Huge Database of Apartments for Rent, Photos We Know Why You Are Sneezing! Area Info- Free! Renton, washington Trips More Allergies Information • Take the Aller I Read user reviews&find deals for your trip to For Renton, WA 4y Q Quiz Renton, Washington ' • Allergy Control Tips Renton Vacations! Indoor Allergy Meter • Find Pollen Hotspots Compare hotel prices&find great travel deals r' Allergy Almanac Renton • Compare U.S. Pollen Levels This Week's Features Lawn &Garden Help Travel for Business? Desktop Weather �:.: ♦wlwxrhw,w Recommended Links ' Make your lawn or Check weather related Local weather&storm garden the envy of the flight delays and airport alerts always on your neighborhood. conditions, desktop for FREE! View photos of sinoles in your area! ' by Match.com Gardening: what do to now in your area Show this page in: English Units Metric Units by Scotts ' Free Term Life Insurance Quote by Reliaquote.com Rates Hit Record Lows - Refinance &Save ' by LowerMyBills.com A Lowe's Gift Card -The Perfect Gift by Lowe's ' Free Samples I Grocery CoWons J_ Baby Coupons by CoolSavings http://www.weather.com/weather/monthly/USWA0369?month=-1 8/11/2004 Monthly Weather Planner Page 1 of 3 Welcome.,� Customize weather.com Home My Page I Health I Travel I Driving I Events I Recreation I Home & Garden World I News I Maps I Weather Tools I Si 91i ' Enter city or US zip See weather related to Get 1 click acre: � d to your local weal Home > Monthly Forecast for Renton, WA Yesterday Current Weekend 10-Day Month U o t M � onthly Weather Planner rwd, koivaAoulroit vc*gpurwyyIm7M4,U S,Uj, for Renton, WA 4 Previous Month August Next MonthO who would you rather tall Sun Mon Tue Wed Thu ! Fri Sat 1 2 3 4 5 j 6 7 CIE OBSERVED OBSERVED OBSERVED1.0BSERVEDI!OBSERVED�OBSERVED OBSERVED g Hi 83°F Hi 760F Hi 770F H! 71°F Hi 770F Hi 690E Hi 7S°F Lo 580E Lo 570E Lo 610E Lo 620F i Lo 59°F g Lo 59°F Lo 59°F I `Precip (In) ,Precip (in):;Precip (in) i Precip (in) Precip(in) Precip(In)i!Pre c (i O.00in. 0.00in. O.00in. 0.001 ip(in} n. O.00in. 0.48in. 0. ip 1 $ 9 10 Today 12 13 14 OBSERVED OBSERVED OBSERVED. sDo you know �11 iii the temperature Hi 81°F i Hi 92°F i HI S60F ill Hi 870E l: Hi 89°F Hi 890E Hi 830E ` o� Lo 590E Lo 64°F Lo 62°F Lo 63°F il.Lo 640F i Lo 62°F Lo 610E We DOI Get It 1 Precip(in) Precip (In) 'Precip(in) Precip Precip Precip l Precip O.00in. O.Ooin. 0.00in.) 0% 0% 0% 0 Advertise Locallyi in Seattle It's Easy 15 16 17 18 19 l 20 21 AVERAGES I Explore Related Sites s. Hi 75°F Hi 83°F Hi 86°F Hi 80°F ( Hi 760E Hi 770E I HI 78°F Lo S6°F It Lo 610E ll i Lo 620E Lo 610E I Lo 59°F l Lo 580E l Lo 600E Access Your PC From AnywhereT' RECORDS GATbMY here for a FREE TRIAL. Precip Precip Precip Precip Precip Precip l' o 20 % 10% 30 % 10% 20% 40% H�870E America nSingles. Search Singles Lo 47 F date', ` View Photo Profiles- Free! i 22 23 0 24 25 26 27 28 ,'AVERAGES AVERAGES''AVERAGES :AVERAGES -AVERAGES =AVERAGESi AVERAGES GO Shopping Hi 75°F Hi 75°F Hi 75°F Hi 750F Hi 75°F Hi 75°F Hi 750E Lo 560E Lo 560E Lo SS°F Lo 550E Lo 55°F - Lo 550E Lo SS°F DVD Rentals RECORDS RECORDS RECORDS RECORDS ;; RECORDS ;j RECORDS £' RECORDS elivered 1 Hi 88°F Hi 86°F i Hi 91°F Hi 88°F i' Hi 870F I Hi 91°F Hi 88°F i Lo 460F Lo 45°F l Lo 46°F Lo 45°F it Lo 45°F i Lo 460F Lo 440F ,AVERAGES AVERAGES AVERAGES 1 I Hi 74°F Hi 74°F Hi 740E Lo 550E Lo 55°F Lo 55°F l RECORDS , RECORDS RECORDS I;' I http://www.weather.com/weather/monthl /USWA0369?mon =y th 0 8/11/2004 1 ' Appendix B:King County Soil Maps/Data t Wetland lm*e:ligation&Delineation Repott: DuvallAvenae NE Videning Pmject Page 40 The City of Renton September 23,2004 Ai0 •�., .r 3213011 t.om S I •�6SIT Be yVI. 998 eC 7 ty. I AgB BM ---- ---BM�- r }" Y rn 1, 'A '_ ._• r r No j C ASC 605 I Ov4 • gey i iAgc I 1 w� A •. :. 34 l Be0 , j C � � it ' '+�f ��. I; •>r n ' � I. 0 Jr ' ,t • Ev6�� A+ �AkF +R, B_eG .e1,1 � Ov0 � ``•,�i�^.�. GRAVEL AgC ( - t.3Tk 306 I �L — .�=— .?a — ---- —__-- T.24 N. Ate, OvC T. 23 N. a� - Bn `t C p�q a RdC N to -i :.• i ���. � •e� �. T �� .a '�O • Be0 • L.' t r Agt: O � n •_► x .F• . >'.n Eve 01 Ra c !'� •,� R ry Ir. e� }' ., � '� � •faller• ark .R \� ,'�1 .� i � � r � - -- - M � _f � _ _BM_' � 'w 12dC• m j �' E •r• 6 0 AgC • 1. • • ••7;• tee.+.. 9 10, 47030' 122°07'30" N 2 Miles Orthophotobase compiled in 1970 by USGS. Planimetric detail obtained from USGS 7> minute series maps. 10000 Feet Polyconic projection. 1927 North American datum. 10,000-foot grid based on Washington coordinate system, north zone. SHEET NO. 5 nn t tnus r yr INUM-1 t vnr_ JJRVATION SERVICE w aKING COUNTY AREA,WASHI SOIL LEGEND The firer capital letter is the initial one of the soil name. A second capital letter, V1 A, B,C, D, E, or F, indicates the class of slope. Symbols without a slope letter are those of nearly level soils. SYMBOL NAME Bovndarv,national,...., A98 Aldarwood gravelly sandy loom,0 to 6 percent slopes State..................... AgC Alderwood gravelly sandy loom,6 to 15 percent slopes County, Parish, mush _,Ag0 Alderwood gravelly sandy loom, 15 to 30 percent slopes Civil township, tr -AkF: Alderwood and Kitsap soils,very steep - ot" AmB Arents,Alderwood material,0 to 6 percent slopes s Incorporated city,.ill AmC Arents, Alderwood material,6 to 15 percent slopes• An Arents, Everett materials Reservation,national BeC Beausite gravelly sandy loom,6 to 15 percent slopes Small park,cemete,v, BeD Beausite gravelly sandy loom, 15 to 30 percent slopes BeF Beausite gravelly sandy loam,40 to 75 percent slopes Land grant.............. Bh Bellingham silt loom Township or rare Br Briscot silt loom Bu Buckley silt loom Township or ran;, line, Cb Coastal Beaches Section line, United S!" Eo Earlmont silt loam Section line,aporox,mon Ed Edgewiek fine sandy loom Township line, -or Unite EvB Everett gravelly sandy loam,0to 5 percent slopes.EvC Everett gravelly sandy loam,5 to 15 percent slopes Section line,not United EvD Everett gravelly sandy loam, 15 to 30 percent slopes Section corner, f:vnd an, EwC Everett-Alderwoodgravelly sandy looms,6 to 15 percent slopes Boundary monvment- Ian. InA Indianola loamy fine sand,0 to 4 percent slopes ' InC Indianola loamy fine sand,4 to 15 percent slopes United States m�-eral w InD Indianola loamy fine sand, 15 to 30 percent slopes KpB Kitsap silt loam,2 to 8 percent slopes Buildings (dwel[,ng, plo KpC Kitsap silt loam,8 to 15 percent slopes KpD Kitsop silt loam, 15 to 30 percent slopes School,church,and ce— KsC Klaus gravelly loamy sand,6 to 15 percent slopes Buildings (born, wareno, Ma Mixed ollvvial land Power rronsmi,s wn line NeC Neilton very gravelly loamy sand,2 to 15 percent slopes Telephone line, pipeline Ng Newberg silt loam Nk Nooksack silt loam Wells other than water No Norma sandy loam Tanks;oil,water,etc. Or Orcas peat Located or lond-nark obp ' Os Oridio silt loam OvC Ovall gravelly loam,0 to 15 percent slopes Ov0 Ovall gravelly loom, 15 to 25 percent slopes Horizontal and vertical r OvF Ovoll gravelly loam,40 to 75 percent slopes Pc Pilchuck loamy fine sand Tablet, spirit level el, Pk Pilchuck fine sandy loam Other recoverable mor, Pu Puget silty clay loam Py Puyallup fine sanely loom Horizontal control stotirr RoC Ragnor fine sandy loam,b to IS percent slopes Any recoverable mark, RaD Ragnor fine sandy loom, 15 to 25 percent slopes Vertical control station: RdC Ragnor-Indionolo association,sloping• RdE Rognar-Indianola association,moderately steeps Other recoverable marl Re Renton silt loam Rh Rivervrosh Checked soot elevation.. Sa $alai silt loam Unchecked spot elevatic Sh Snmmomish silt loam Sk Seattle muck Sm Shalcor muck Sri Si silt loom So Snohomish silt loam Sr Snohomish silt loam,thick surface variant Su/ Sultan silt loam Tu Tukwila muck Ur Urban land Wo Woodinville silt loam • The composition of these units is more variable than that of the others in the area,but it has been controlled well enough to interpret for the expected use of the soils. L Extractable sodium and potassium were determined b extracted with potassium chloride (10, 14). and P Y flame photometry after extraction with ammonium titration was done with potassium fluoride (26)* '` __1 acetate (7). Exchange acidity was determined by Organic carbon was determined by the modified Walk- leaching with barium chloride and back titrating ley technique (13, 23) . Reaction was determined in with 0.2N hydrochloric acid (13) . Cation-exchange water, potassium chloride, and sodium fluoride. capacity was determined by displacement with ammo- Iron and aluminum were extracted with a sodium nium acetate (13, 27) . Exchangeable aluminum was pyrophosphate-sodium dithoinite solution (8) . 4/ CLIMATE Most of the air masses that reach the survey area the temperature of the ocean's surface. Orographic originate over the Pacific Ocean. The maritime air lifting and cooling of air masses moving inland influences the climate throughout the year. The causes cloudiness and variable precipitation (table prevailing wind is from the southwest in fall and 11) . In the drier areas, annual precipitation 1 winter and gradually shifts to the northwest late in year in 10 has ranged from less than 25 to more than spring and in summer. There is a well-defined dry 40 inches, and on the wetter slopes of the Cascades, season in summer and a rainy season in winter. Annu- from less than 80 to more than 130 inches . Measur- al precipitation increases from 35 inches in low- able precipitation (0.01 inch or more) is recorded lands adjacent to Puget Sound to 150 inches or more on 4 to 8 days each month in summer, 10 to 15 days on the wettest slopes of the Cascade Mountains. in fall and spring, and 20 to 25 days in winter. Snowfall ranges from less than 20 inches near Puget During the wet season, rainfall is usually of Sound to 400 inches on the higher slopes in the . light to moderate intensity and continuous over a eastern part of the Area. Fifty percent of the annu- period of time, rather than heavy downpours for al precipitation falls from October through January brief intervals. Thunderstorms occur on 5 to 10 and 75 percent from October through March. Total days each year, mostly in summer. rainfall for July and August is less than 5 percent Most winter precipitation falls as. rain at eleva- of the annual. tions below 1,500 feet, as rain or snow between During the warmest months in summer, afternoon 1,500 and 2,500 feet, and as snow at the higher temperatures over the lowlands are in the 70's, elevations. Near the crest of the Cascades, snow decreasing to the 60's in the mountains. Tempera- can be expected in October, and it will remain on tures can be expected to decrease 3 or 4 degrees the ground from November until July. Snowfall with each increase of 1,,000 feet in elevation. Maxi- ranges in depth from 10 to 30 inches over the low- mum temperatures reach 850 to 900 F. on 5 to 15 days, lands, from 30 to 60 inches in valleys near the and 1000 F. has been recorded in the lowlands. The mountains and in the foothills, and from 300 to 400 hottest weather and lowest relative humidity general- inches on the higher ridges. In the mountains, ly occur during brief periods when easterly winds density of the winter season snowpack increases from blow. about 30 percent water early in winter to 45 percent In summer, the average relative humidity ranges in April. Snow depths at the higher elevations from about 90 percent at sunrise to 50 percent in range from 75 to 150 inches in an average winter; it midafternoon. In winter, it ranges from 90 percent increases to 200 inches or more in seasons of heavie? to 75 percent. Occasionally it may drop to 30 per- snowfall. cent or less when dry easterly winds blow. There are generally two periods of high stream In winter, afternoon temperatures over the low- flow each year. The major one occurs in fall and lands range from the lower 30's to the lower 40's winter, coinciding with the season of heavy precipi- and minimums from the mid-20's to the mid-301s. Be- tation, and the other late in spring as the snowpack low freezing temperatures are recorded on 30 to 90 melts. Streams may rise above flood stage several nights depending on air drainage, distance from the times each rainy season. Sound, and elevation (table 10) . Almost every The number of clear or only partly cloudy days winter, minimums ranging from 10° to 20° F. are each month is 4 to 7 in winter, 10 to 15 in spring reported on a few nights, and below zero readings and fall, and 20 or more in summer. have been recorded in some localities. In the Winds in this Area are influenced to some extent mountains, temperatures are below freezing on most by topography. In general, the -prevailing wind is nights between mid-October and April. The coldest from the south or southwest in winter and the west weather occurs when the Pacific Northwest is under or northwest in summer. The strongest winds are the influence of air from over the interior of from the southwest and occur as the more intense the continent. winter storms move inland. Extreme winds at 30 feet Maritime air that reaches the Washington coast above the ground can be expected to exceed 55 miles late in fall and in winter is moist and is about per hour once in 2 years, 80 miles per hour once in 50 years, and 90 miles per hour once in 100 years. 4/ Depth .of frost in the soil is quite variable. In ' By EARL PHILLIPS, climatologist for Washington, an average winter, frost reaches a depth of 4 to�8 National Weather Service, U.S. Department of Commerce. inches and may penetrate 15 inches or more during 88 Irolonged cold periods with no snow cover. Soils un- through transpiration from plants. Techniques ' der the mountain snowpack are usually free of frost developed by Palmer-Havens for the application of less they are frozen before snow starts accumula- the Thornthwaite method were used to estimate the ng. potential evapotranspiration, or the theoretical maximum amount of water that could be used under to 220 days, is near the Pu Sound. The shortest, ideal conditions (table 11) . Assuming that soils o a s is in valle s separated from—fM have an available water capacity of 6 inches, and b� dg�s, " estimates also have been made of the actual nual evaporation is estimated at 25 to 35 evapotranspiration. inches. In an average season, the monthly evaporation 2 to 3 inches in April, 5 to 7 inches in July, Potential evapotranspiration in midsummer d 3 to 4 inches in September. exceeds actual evapotranspiration by approximately Evapotranspiration is the combined loss of 2 inches in the drier areas and by 1 inch on the water to the atmosphere through evaporation and wetter slopes of the Cascades. GEOLOGY LT he soils and land types of the King County Area rode over the highestparts of the ridge, picked up ed largely in deposits of glacial drift laid some of the country rock, and left a mantle of down during the Vashon-period of the Fraser glacia- debris about 3 feet thick in most places over the to.n (D late in the Pleistocene. The major kinds ridge. The terrain is fairly steep and has some aterial left by the glacier are till, recession- slopes as steep as 75 to 80 percent. Soils of the outwash, and pro-glacial lacustrine and outwash Beausite series overlie the sedimentary rock, and sediments. Following deglaciation, alluvium accumu- soils of the Ovall series overlie the volcanic mate- d in the valleys, and a mudflow from Mount rial. ier covered. a large area in the vicinity of Pro-glacial lacustrin a and sandy outwash sedi- claw.. Figure 7 shows the general location of ments are exposed mostly on the strong slopes that the major geologic material in the Area. See page 96. extend into the major valleys, such as the one near The Vashon till consists of very dense, consoli- Kent and Auburn, around Lake Washington and Lake ted lodgement till that ranges in thickness from Sammamish, and in the Patterson Creek and Snoqualmie out 5 feet to nearly 100 feet and has a mantle of River Valleys. Soils of the Kitsap series formed in ablation till about 3 feet thick. The ablation till the silty lacustrine sediments, and'soils of the loose, and it is in this material that soils of Indianola series formed in the sandy outwash sedi- e Alderwood series formed. The Vashon till is the mentS st extensive of the geologic material in the sur- About 5,000 years ago, a mudflow came from the vey area. The till plain is undulating, and slopes north side of Mount Ranier, down the valley of the koe mostly 6 to 15 percent. In some areas slopes are White River, and covered a large area in the vicin- s than 6 percent, and numerous slopes on terrace ity of Enumclaw. It is known as the Osceola mudflow nts to the valleys are more than 15 percent. (6) . The mudflow was so fluid that it flowed around y poorly drained closed depressions punctuate the most of the knobs of the Vashon till plain and left ndscape. Organic soils of the Seattle series and many of their drumlin-shaped tops exposed. The lt mineral soils of the Bellingham and Norma series surface of the mudflow material is nearly level, e in. these .depressions. which restricts drainage. The mudflow sediments are As the Vashon glacier receded, large quantities gravelly loam that is loose in the upper 18 to 30 Imeltwater were discharged from it. .The meltwater inches because of weathering and soil formation and rted material in its path and left very gravelly very dense and impervious below. Stones and gravel d sandy sediments that range in thickness from 4 are principally andesite and basalt from the Cascade or 5 feet to 80 or 100 feet on the upland terraces. Mountains to the east. The clay mineral montmo- Major delta deposits are several hundred feet thick% rillonite is abundant, but Vashon drift has stones e recessional, very gravelly sediments are loose and gravel mostly of granitic origin, and the domi- d dporous, and it is in these sediments that soils nant clay minerals are illite and chlorite. Soils o the Everett series formed. Indianola soils formed1 of the Buckley series formed in the Osceola mud- in the sandy recessional deposits. The outwash flow. rraces and plains are nearly level but have terrace Alluvium accumulated in the valleys in post- carpments as steep as 35 to 40 percent. glacial times. In the valleys of the Green, A northwest-trending ridge in the central part of Sammamish, and Snoqualmie Rivers, the sediments are the survey area is an uplift of shale, sandstone, many tens of feet thick, are mostly silty, and have nglomerate, and some carbonaceous shale and coal- lenses of sand and peat in some places. Soils of the ds (9) . Andesite, tuff, and breccia alsq occur Puget, Puyallup, Sultan, and Seattle series formed u the ridge from place to place. The Vashon glacier in this alluvium. 89 TABLE 11. -PRECIPITATION, POM74 Station January February March April May In. In. Ia. In. In. Bothell 2 N. (elevation 100 feet). Precipitation------------------ 5.4 4.2 3.8 2.5 2.4 Potential evapotranspiration--- .4 .6 1.1 1.9 2.9 Actual evapotranspiration (soil that has a 6-inch a available water capacity)--- .4 .6 1.1 1.9 2.9 Cedar Lake (elevation 1,560 feet)- Precipitation----------- 13.2 10.7 11.2 7.6 6.2 Potential evapotranspiration-- .2 .4 •9 1.7 2.7 Actual evapotranspiration (soil that has a 6-inch available water capacity)-- .2 .4 .9 1.7 2.7 Landsburg (elevation 535 feet): Precipitation------------------ 6.8 5.7 5.8 4.0 3.3 Potential evapotranspiration--- .4 .6 1.2 2.0 3.0 Actual evapotranspiration (soil that has a 6-inch available water capacity)-- .4 .6 1.2 2.0 3.0 Monroe (elevation 120 feet): Precipitation------------------ 5.7 4.8 4.5 3.2 3.0 Potential evapotranspiration--- .4 .5 1.2 2.0 3.1 Actual evapotranspiration (soil that has a 6-inch available water capacity)--- .4 .5 1.2 2.0 3.1 Palmer 3 SE. (elevation 895 feet)-- Precipitation------------ 11.1 9.5 10.2 7.3 5.9 Potential evapotranspiration---- .3 .5 1.0 1.9 2.9 Actual evapotranspiration (soil that has a 6-inch available water capacity)--- .3 .5 1.0 1.9 2.9 Seattle-Tacoma Airport (elevation 386 feet): Precipitation------------------- 4.7 4.0 3.4 2.1 1.6 Potential evapotranspiration---- .3 .6 1.2 1.8 3.1 Actual evapotranspiration (soil that has a 6-inch available water capacity)--- .3 .6 1.2 1.8 3.0 Seattle University of Washington (elevation 113 feet): Precipitation------------------- 4.7 3.9 3.2 2.1 1.9 Potential evapotranspiration---- .5 .7 1.2 2.0 3.1 Actual evapotranspiration (soil that has a 6-inch available water capacity)--- .5 .7 1.2 2.0 3.0 , I 92 ' EVAPOTRANSPIRATION, AND ACTUAL EVAPOTRANSPIRATION June July August September October November December Year In, In. In. In. In. In. In. In. 2.1. 0.9 1.0 2.0 3.8 5.3 6.1 39.5 3.6 4.3 3.9 2.8 1.8 .8 .6 24.7 3.4 2.6 2.0 2.2 1.8 .8 .6 20.3 ' 5.6 2.4 2.5 5.3 1o.4 13.6 15.7 104.4 3.5 4.2 3.8 2.8 1.8 .8 .4 23.2 3.5 4.o 3.4 2.8 1.8 .8 .4 22.6 3.4 1.5 1.6 3.4 5.7 7.0 8.2 56.4 ' 3.6 4.1 3.7 2.8 1.8 .8 .5 24.5 3.6 3.5 2.7 2.8 1.8 .8 .5 22.9 ' 2.6 1.1 1.2 2.4 4.6 6.2 6.7 46.o 3.8 4.5 4.1 2.9 1.8 .9 .5 25.7 ' 3.7 3.2 2.3 2.5 1.8 .9 .5 22.1 ' 5.3 2.4 2.4 4.9 9.1 11.6 13.7 93.4 3.6 4.4 4.o 3.0 1.8 .5 .5 24.7 ' 3.6 4.1 3.4 3.0 1.8 .8 .5 23.8 ' 1.3 .6 .9 . 3.3 4.5 5.7 33.8 3.8 2 4.5 4.1 2.88 1.8 .8 .5 25.3 29 2.0 1.6 1.9 1.8 .8 .5 18.4 1.5 .8 .7 1.8 3.5 5.1 5.6 34.8 ' 3.8 4.6 4.2 3.0 2.0 .9 .6 26.6 3.1 2.4 1.4 2.0 2.0 .9 .6 19.8 ' 93 TABLE 3.--ENGINEERING [An asterisk in the first column indicates that at least one mapping unit in this series is made up of two or this reason it is necessary to follow carefully the.instructions for referring ' Suitability as source of-- Soil features adversely affecting-- Soil series and map symbols Topsoil Road fill Highway location Dikes and levees •Alderwood: AgB, AgC, Poor: gravelly------ Fair: 24 to 40 Slope range is 0 to Low compressibility; AgD, AkF. inches deep over 70 percent; water pervious when com- For Kitsap part consolidated till. moves on top of pacted; piping of AkF, see substratum in hazard; consolidated Kitsap series. winter; consoli- till at a depth of dated till at a 24 to 40 inches. depth of 24 to 40 ' inches. Arents, Alderwood Poor: gravelly------ Fair: 24 to 40 Slope range is 0 to Low compressibility; material: AmB, inches deep over 15 percent; water pervious when com- AmC. consolidated till. moves on top of pacted; piping substratum in hazard; consolidated winter; consoli- till at a depth of dated till at a 24 to 40 inches. depth of 24 to 40 inches. i Arents, Everett Poor: very gravelly- Good----------------- Features generally Low compressibility; material: An. favorable. pervious when com- pacted; piping hazard. ' Beausite: BeC, BeD, Poor: gravelly------ Fair: bedrock at a Slope range is 6 to Low compressibility; BeF. depth of 20 to 40 75 percent; frac- pervious when com- ' inches. tured sandstone pacted; piping bedrock at 20 to 40 hazard; sandstone inches. bedrock at a depth of 20 to 40 inches. Bellingham: Bh------ Fair: silty clayPoor: poorly Seasonal water table Moderate shrink-swell loam at 14 inches. drained; A-6 and at or near surface; potential. ' A-7. high frost-action potential; moderate shrink-swell potential. Briscot: Br--------- Good---------------- Fair: somewhat Seasonal water table Piping hazard--------- poorlydrained; at a depth of 1 to A-4. 2'feet; high frost- action potential; flood hazard. Buckley: Bu-------- Fair: gravelly below Poor: poorly Seasonal water table Features generally .a depth of 10 to 14 drained. at or near surface; favorable. ' inches. high frost-action potential. 6 ' Coastal beaches: Cb- Poor: gravel or Variable------------- (1/)----------------- Low compressibility; sand. pervious when com- pacted; piping hazard. ' See footnote at end of table. 44 INTERPRETATIONS ' more kinds of soil. The soils in such mapping units may have different properties and limitations, and for to-other series that appear in the first column of this table] ' Soil features adversely affecting--Continued Farm ponds ' Drainage Irrigation Grassed waterways Reservoir areas Embankments I .' Slope range is 0 to Low compressibility; Very slow permeabil- Low available water Slope range is 0 to 70 70 percent; moder- pervious when com- ity below a depth capacity; consoli- percent; low avail- ately rapid permea- pacted; piping of 24 to 40 inches: dated till at a able water capacity; bility to a depth hazard; consoli- slope range is 0 to depth of 24 to 40 slight to very I of 24 to 40 inches; dated till at a 70 percent; water inches; slope severe erosion consolidated till depth of 24 to 40 moves on top of range is 0 to 70 hazard. at a depth of 24 to inches. substratum in percent. 40 inches. winter. Slope range is 0 to. Low compressibility; Very slow permeabil- Low available water Slope range is 0 to 15 ' 15 percent; moder- pervious when com- ity below a depth capacity; consoli- percent; low avail- ately rapid permea- patted; piping of 24 to 40 inches; dated till at a able water capacity; I . bility to a depth hazard; consoli- water moves on top depth of 24 to 40 slight to severe of 24 to 40 inches; dated till at a of substratum inches; slope erosion hazard. consolidated till depth of 24 to 40 during winter; slope range is 0 to 15 at a depth of 24 to inches. range is 0 to 15 percent. 40 inches. percent. Rapid permeability--- Low compressibility; (1/)----------------- Low available water Low available water ' pervious when capacity. capacity. compacted; piping is hazard. ' Slope range is 6 to Low compressibility; ----------------- Low available water Slope range is 6 to 75 percent; moder- pervious when com- capacity; slope 75 percent; low ately rapid permea- pacted; piping range is 6 to 75 available water " bility; fractured hazard; fractured percent. capacity; moderate sandstone bedrock sandstone bedrock to very severe at 20 to 40 inches. j at a depth of 20 erosion hazard. to 40 inches. Seasonal high water Moderate shrink- Slow permeability; Poorly drained------ Poorly drained. ' table at or near swell potential. seasonal water surface. table at or near the surface. Seasonal high water Piping hazard------ Seasonal water table Somewhat poorly Somewhat poorly table at a depth at a depth of 1 to drained; flood drained; flood of 1 to 2 feet. 2 feet; unstable hazard. hazard. ditch banks; flood hazard. Seasonal water table Features generally Seasonal water table Poorly drained----- Poorly drained. ' at or near surface. favorable. at or near surface; slowly permeable; outlet problem in some areas. ' (1/)---------------- --------------- ---------------- (1%)--------------- i i 45 TABLE 3.--ENGINEERING Suitability as source of-- Soil features adversely affecting-- Soil series and Topsoil Road fill Highway location Dikes and levees map symbols Earlmont: Ea-------- Good---------------- Poor: A-7 material; Seasonal high water Moderate shrink-swell somewhat poorly table at a depth potential; piping drained. of 2 to 3 feet; hazard; organic high frost-action layer at a depth potential; peat below 40 inches. and muck below a depth of 40 inches; moderate shrink- swell potential. Edgewick: Ed-------- Good to a depth of Fair to a depth of Flood hazard-------- Low compressibility; about 34 inches. about 34 inches, pervious when com- Poor below: grav- A-4; good at a pacted; piping elly sand. depth below 34 hazard. inches, ,A-l. *Everett: EvB, EvC, Poor: gravelly and Good---------------- Slope range is 0 to Low.compressibility; EvD, EwC. very gravelly. 30 percent. pervious when com- For Alderwood pacted; piping part of EwC, see hazard. Alderwood series. Indianola: InA, InC, Poor: sand--------- Good---------------- Slope range is 0 to Low compressibility; InD. 30 percent. pervious when com- pacted; piping hazard. ' Kitsap: KpB, KpC, Good.to a depth of Poor: A-6 material- Slope range is 2 to Moderate shrink-swell KpD. about 24 inches. 70 percent; water potential. moves on top of substratum in winter; moderate shrink-swell potential; slip- page potential on steeper slopes; high frost-action potential. Klaus: KsC---------- Poor: very gravelly Good---------------- Slope range is 6 to Low compressibility; loamy sand. 15 percent. pervious when com- pacted; piping hazard. Mixed alluvial land: Too variable to Too variable to Flood hazard; other Features too variable Ma, rate. rate. features are too to rate. variable to rate. Neilton: NeC-------- Poor: very gravelly- Good---------------- Slope range is 2 to Low compressibility; 15 percent. pervious when com- pacted; piping hazard. See footnote at end of table. 46 INTERPRETATIONS--Continued Soil features adversely affecting--Continued Farm ponds ' Drainage Irrigation Grassed waterways Reservoir areas Embankments Seasonal high water Moderate shrink-swel Seasonal water Somewhat poorly Somewhat poorly table at a depth potential; piping table at a depth drained. drained. of 3 feet; organic hazard; organic of 2 to 3 feet; layer below a depth layer at a. depth flood hazard. of 40 inches. below 40 inches. ' Very rapid permeabil Low compressibility; Flood hazard-------- Flood hazard------- Flood hazard. ity at a depth pervious when below 32 to 40 compacted; piping inches. hazard. Slope range is 0 to Low compressibility; (1/)---------------- Low available water Slope range is 0 to 30 30 percent; rapid pervious when capacity; slope percent; low avail- permeability. compacted; piping range is 0 to 30 able water capacity; hazard. percent. slight to severe erosion hazard. Slope range is 0 to Low compressibility; (1/)---------------- Moderate available Slope range is 0 to 30 30 percent; rapid pervious when water capacity; percent; moderate permeability. compacted; piping slope range is 0 available water hazard. to 30 percent. capacity; slight to severe erosion hazard. Slope range is 2 to Moderate shrink-swell Very slow permeabil- Very slow permeabil Slope range is 2 to 70 70 percent; water potential. ity at a depth of ity at a depth of percent; slight to moves on top of about 24 incnes; about 24 inches; severe erosion substratum in water moves on top slope range is 2 hazard. winter. of substratum in to 70 percent. winter; slope range is 2 to 70 percent. 1 - Low available water Slope 6 0 Slope range is 6 to Low compressibility, (J) --------------- p range is t 15 15 percent; rapid pervious when capacity; slope percent; low avail- to very rapid compacted; piping range is 6 to 15 able water capacity. permeability. hazard. percent. Features too vari- Features too vari- Flood hazard; vari- Flood hazard------- Flood hazard. able to rate. able to rate. able permeability and depth to water table. Slope range is 2 to Low compressibility; (1/)---------------- Low available water Slope range is 2 to 15 'I 15 percent; very pervious when capacity; slope percent; 10,., avail- rapid permeabil- compacted; piping range is 2 to 15 able wa*er --anacity; ity. hazard. percent. slight t_ m derate erosi::.. hazard. '. 47 TABLE 3.--ENGINEERING Suitability as source of-- Soil features adversely affecting-- Soil series and map symbols Topsoil Road fill Highway location Dikes and levees Newberg: N Good---------------- Fair: A-4 material- High frost-action Piping hazard-------- . g� g-------- potential; flood hazard; seasonal high water table at a depth of 3 to 4 feet. Nooksack: Nk------- Good---------------- Fair: A-4 material- High frost-action Piping hazard-------- potential; flood hazard; seasonal high water table at a depth of"3 to 4 feet. Norma: No---------- Good---------------- Poor: poorly Flood hazard in Low compressibility; drained. places; seasonal pervious when high water table compacted; piping at or near hazard. surface. Orcas: Or---------- Poor: sphagnum Not suitable: Seasonal high water Organic soil--------- ' peat. sphagnum peat. table at or near surface; organic soil. Oridia: Os--------- Good---------------- Poor: somewhat High frost-action Piping hazard-------- poorlydrained; potential; subject A-6 or A-7 to flooding; material. seasonal high water table at a depth of 1 to 2 feet. Ovall: OvC, OvD, Poor: gravelly----- Fair: A-4; bedrock Slope range is 0 to Piping hazard--------- OvF. at a depth of 20 75 percent; to 40 inches. andesite bedrock at a depth of 20 to 40 inches. Pilchuck: Pc, Pk--- Poor: loany fine Good---------------- Flood hazard; sea- Low compressibility; sand. sonal high water pervious when table at a depth compacted; piping of 2 to 4 feet in hazard. places. See footnote at end of table. 48 INTERPRETATIONS--Continued Soil features adversely affecting--Continued ` Farm ponds Drainage Irrigation Grassed waterways Reservoir areas Embankments Seasonal high water Piping hazard------- Flood hazard; Flood hazard-------- Flood hazard. table at a depth seasonal high of 3 to 4 feet; water table at a flood hazard. depth of 3 to 4 feet. Seasonal high water Piping hazard------- Flood hazard; Flood hazard-------- Flood hazard. table at a depth seasonal high of 3 to 4 feet; water table at a flood hazard. depth of 3 to 4 feet. Seasonal high water Low compressibility; Flood hazard in Flood hazard in Flood hazard in table at or near pervious when places; seasonal places; poorly places; poorly surface; flood compacted; piping high water table drained. drained. ` hazard in places; hazard. at or near surface; moderately rapid drainage outlet is permeability. a problem in some areas; unstable ditch banks. Seasonal high water Organic soil-------- Seasonal high water Very poorly drained; Very poorly drained; table at or near table at or near organic soil. organic soil. surface; organic surface; drainage soil. outlet is a prob- lem in some areas; close control of water table necessary to con- trol subsidence. Seasonal high water Piping hazard------- Seasonal high water Flood hazard; some- Flood hazard; some- table at a depth table at a depth what poorly what poorly of 1 to 2 feet; of 1 to 2 feet; drained. drained. subject to flood- subject to flood- ing in places. ing in places; unstable ditch banks. Slope range is 0 to Piping hazard; ---------------- Slope range is 0 to Slope range is 0 to 75 percent; andesite bedrock 75 percent; 75 percent; slight andesite bedrock at a depth of 20 andesite bedrock to very severe at a depth of 20 to 40 inches. at a depth of 20 erosion hazard. to 40 inches. to 40 inches. Seasonal high water Low compressibility; Seasonal high water Moderate available Moderate available table at a depth pervious when table at a depth water capacity; water capacity; of 2 to 4 feet in compacted; piping of 2 to 4 feet in flood hazard. flood hazard. places; flood hazard. places; flood i hazard; rapid hazard. permeability. 49 TABLE 3.--ENGINEERING Suitability as source of-- Soil features adversely affecting-- Soil series and Topsoil Road fill Highway.location Dikes and levees map symbols Puget: Pu---------- Fair: silty clay Poor: poorly Seasonal high water Moderate shrink-swell loam. drained; A-7 table at or near potential; piping material. surface; moderate hazard. potential; flood hazard. Puyallup: Py------- Good to a depth of Fair to good-------- Seasonal high water Low compressibility; about 34 inches. table at a depth pervious when Poor below: sand. of 4 to 5 feet; compacted; piping flood hazard in hazard. places. * Ragnar: RaC, RaD, Good to a depth of Fair to good: A-2 Slope range is 6 to Low compressibility; RdC, RdE. about 27 inches. and A-4.material. 25 percent. pervious when For India.noia Poor below: loamy compacted; piping part of RdC and sand. hazard. a RdE, see Indian- ola series. Renton: Re--------- Good to a depth of Fair: somewhat Seasonal high water Low compressibility; about 16 inches. poorly drained. table at a depth pervious when Poor below: sand. of 1 to 2 feet; compacted; piping flood hazard in hazard. places. Riverwash: Rh------ Too variable to rate- Good---------------- Seasonal high water Low compressibility; table at or near pervious when surface; flood compacted; piping hazard. hazard. Salal: Sa---------- Good----------------- Fair: A-4 material-- Seasonal high water Piping hazard-------- tableat a depth of 3 to 4 feet; high frost—action potential; flood hazard in places. Sammamish: Sh------ Good----------------- Fair: A-4 material; High frost-action Piping hazard-------- somewhatpoorly potential; flood drained. hazard; seasonal high water table at a depth of 1 to 2 feet. 1 See footnote at end of table. 50 ERPRETATIONS--Continued Soil features adversely affecting--Continued Farm ponds Drainage Irrigation Grassed waterways Reservoir areas Embankments Seasonal high water Moderate shrink- Seasonal high water Poorly drained; slow Poorly drained; flood table at or near swell potential; table at or near permeability; hazard. surface; flood piping hazard. surface; flood flood hazard. hazard. hazard; slow per- meability; drain- age outlet is a problem in places. seasonal high water Low compressibility; Seasonal high water Flood hazard in Flood hazard in table at a depth pervious when table at a depth places. places. of 4 to 5 feet; compacted; piping of 4 to 5 feet; subject to flood- hazard. flood hazard in ing in places; places. rapid permeability below a depth of about 34 inches. f ------- Slope Slope range is 6 to Low c mipressibility; (1�)------'-- range is 6 to Slope range is 6 to25 percent. 25 percent; moderate 25 percent; moder- pervious when to severe erosion ately rapid and compacted; piping hazard. rapid permeability. hazard. easonal high water Low compressibility; Seasonal high water Flood hazard in Somewhat poorly table at a depth pervious when table at a depth o places; somewhat drained; flood acted piping 1 to 2 feet; flood poorly drained. hazard in places. c of 1 to 2 feet; compacted; P p g hazard in places; flood hazard in hazard. places; very unstable ditch- rapid permeability banks. .;elow a depth of about 16 inches. (�)________________ Low compressibility; (l/)---------- ------ (�)---------------- (1�) pervious when compacted; piping hazard. - Flood hazard in Flood hazard in Seasonal high water Piping hazard------- (1/) ________- places. places. table at a depth of 3 to 4 feet; flood hazard in places. Seasonal high water Piping hazard------- Seasonal high water Flood hazard; some- Flood hazard; some- table at a depth table at a depth what poorly poorly y of 1 to 2 feet; drained. drained. of 1 to 2 feet; flood hazard; flood hazard. moderately slow permeability. S1 1 + TABLE 3.--ENGINEERING Suitability as source of-- Soil features adversely affecting-- Soil series and Topsoil Road fill Highway_ tocation Dikes and levees map symbols Seattle: Sk--------- Poor: mucky peat--- Not suitable: Seasonal high water Organic soil--------- mucky peat. table at or near surface; organic soil. Shalcar: Sm--------- Poor: muck--------- Not suitable: muck- Seasonal water table Organic soil--------- ator near surface organic soil. Si: Sn-------------- Good---------------- Fair: A-4 material- High frost-action Piping hazard-------- potential; flood hazard; seasonal high water table at a depth of 2 to 4 feet. Snohomish: So------- Good to a depth of Poor: muck at a High frost-action Piping hazard; about 17 inches. depth below 13 to potential; flood organic layers. Poor below: mucky 36 inches. hazard; seasonal peat and loamy high water table fine sand. at a depth of 0 to 1 foot; organic layers in profile. Snohomish, thick Good to a depth of Poor: muck at a High frost-action Piping hazard; surface variant: about 29 inches. depth below 20 to potential; flood organic layers. Sr. Poor below: muck. 40 inches. hazard; seasonal high water table at a depth of 2 to 3 feet; organic layers in profile; moderate shrink- swell potential. Sultan: Su---------- Fair: silty clay Fair to poor: A-4 High frost-action Moderate shrink-swell loam below a depth and A-6 material. potential; flood potential. of 6 to 10 inches. hazard; seasonal high water table at a depth of 2 to 3 feet; moder- ate shrink-swell potential. See footnote at end of table. S2 INTERPRETATIONS--Continued Soil features adversely affecting--Continued Farm ponds Drainage Irrigation Grassed waterways Reservoir areas Embankments Seasonal high water Organic soil-------- Seasonal high water Very poorly drained Very poorly drained table at or near table at or near organic soil. organic soil. surface; organic surface; drainage soil. outlet is a prob- lem in some areas; close control of water table necessary to con- trol subsidence. Seasonal high water Organic soil-------- Seasonal high water Very poorly drained Very poorly drained table at or near table at or near organic soil. organic soil. surface; organic surface; drainage soil. outlet problem in some areas; close control of water table necessary to control subsidence. Seasonal high water Piping hazard------- Seasonal high water Flood hazard-------- Flood hazard. table at a depth table at a depth of 2 to 4 feet. of 2 to 4 feet; flood hazard; unstable ditch banks. Seasonal high water Piping hazard; Seasonal high water Flood hazard; poorly Flood hazard; poorly table at a depth organic layers. table at a depth drained. drained. of 0 to 1 foot; of 0 to 1 foot; flood hazard; flood hazard; organic layers in unstable ditch profile. banks; organic layers in profile. Seasonal high water Piping hazard; Seasonal high water Flood hazard; some- Flood hazard. table at .a depth organic layers. table at a depth what poorly of 2 to 3 feet; of 2 to 3 feet; drained. flood hazard; flood hazard; organic layers in unstable ditch profile. banks; organic layers. Seasonal high water Moderate shrink- Seasonal high water Flood hazard; moder- Flood hazard. table at a depth swell potential. table at a depth ately well drain- of 2 to 3 feet; of 2 to 3 feet; ed. flood hazard. flood hazard. S3 TABLE 3.--ENGINEERING Suitability as source of-- Soil features adversely affecting-- Soil series and Topsoil Road fill Highway location Dikes and levees map symbols Tukwila: Tu--------- Poor: muck--------- Not suitable: Seasonal high water Organic soil--------- muck. table at or near surface; organic soil. Urban land: Ur------ Too variable to Too variable to Features too vari- Features too variable rate. rate. able .to rate. to rate. Woodinville: Wo----- Fair: silty clay Fair to poor: A-4 Water table at or Moderate shrink-swell loam. and A-6 material. near surface; flood potential. hazard in places; moderate shrink- swell potential; organic layers in profile. 1� Practice not needed or not applicable. 54 r INTERPRETATIONS-- Continued Soil features adversely affecting--Continued Farm ponds Reservoir areas Embankments Drainage Irrigation Grassed waterways Seasonal high water Organic soil-----=- Seasonal high water Very poorly drained; Very table at or near or poorly drained; table at or near organic soil, organic soil. surface; organic surface; drainage soil. outlet problem is in some areas; close control of water table necessary to control subsidence Features too vari- Features too vari- (l/)---------------- (1�) ---- (1/�• able to rate. able to rate. ------------ Water table at or Moderate shrink-swell Water table at or Poorly drained; Poorly drained; flood near surface; potential. near surface; flood hazard in hazard in places. flood hazard in flood hazard in places. places; organic places; organic layers in profile layers in profile. 55 �g ' Appendix C.•Data Sheets 1 1 ' Wetland Investigation&Delineation Report: DuvallAvenue NE Widening Project Page $9 The City of Renton September 23,2004 DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) ' Project/Site: lit V 11 141/15 cegtz-64 - Pk w Date: 6 z 0 Applicant/Owner: 7>N 7 County: 14 Investigator: L, L«T1 � State: ' Do Normal Circumstances exist on the site? No Community ID: J Is the site significantly disturbed (Atypical Situation)? Yes Transect ID: ' Is the area a potential Problem Area? Yes Plot ID: If needed, a lain on reverse. p-S +ZO . AJ q 7 0 3 D $� VEGETATION y`> 1u0 og ' 33. 3 Dominant Plant Species %Cover Stratum Indicator Dominant Plant Soecies %Cover Stratum Indicator ' 1.9 G/N. /0 S r-?qGLL 9. 2 10. 3R 1��VAJU O 0 11. 46tal6+ lliM ROB. T IY- 12. ' 5. ,Y. 615 V tf y P L 13. � 6. ) ✓Vl r L � 14. A 15. C 16. Percent of Dominant Species that are OBL,FACW or FAC (excluding FAG. p Remarks: btu//n/ b/�C(-� ! lie /0 FT N• AA10 p el Or— J7�6 T 5 JS7/f-tJ14,y c�7 cC tit; d� /2 v. pyVl rn/r9 � Owl o HYDROLOGY Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary 1 'cators: Aerial Photographs 1 dated y -Other aturated in Upper 12 Inches No Recorded Data Available _Water Marks Drift Lines _Sediment Deposits Field Observations: _Drai age Patterns in Wetlands L/ S,co ary Indicators(2 or more required): Depth of Surface Water: (in.) —Oxidized Root Channels in Upper 12 Inches Water-Stained Leaves Depth to Free Water in Pit: (in.) _Local Soil Survey Data _FAC-Neutral Test ' Depth to Saturated Soil: 0 Da(-iinn).) Other (Explain in Remarks) Remarks: S(�D�OE /S S?�`��' /�/ J`� TZ O t cT, 6Y2-0✓NY>t-)k7—157� c 7C7 rJ pGo7 4) �o� � l SOILS Map Unit Name n (Series and Phase): 0't/�� (>(�/J Drainage Class: Taxonomy(Subgroup): Field Observations Confirm Mapped Type? Ye Profle Description ' Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, (inches) Horizon (Munsell Moist) (Munsell Moist) Size/Contrast Structure etc 3 Z S,gn/D y G1�4-t/ LoR-v�l, �- 67L / l NP : 4"'V GL-4 V Hydric Soil Indicators: Histosol _Concretions _ c Epipedon _High Organic Content in Surface Layer in Sandy Soils ' ulfdic Odor _Organic Streaking in Sandy Soils Aquic Moisture Regime _Listed on Local Hydric Soils List _Rpeang Conditions _Listed on National Hydric Soils List leyed or Low Chroma Colors _Other(E)plain in Remarks) Remarks: Al-0 /-2/S 71%;VG , 1n t)777—sl!(f /N Y1lzs r 0� o T LCT /Lo Gk-S WETLAND DETERMINATION ' Hydrophytic Vegetation Present? es No (Circle) (Circle) Wetland Hydrology Present? No ' Hydric Soils Present? es No Is this Sampling Point Within a Wetland? 10No Remarks: t Approved by HQUSACE 3/92 1 DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) ' Project/Site: Dt4 VA 41 )WC CO -L CWX_- ply Date: D Applicant/Owner: t2-i K) ft C-Oy7-O County: L Investigator: L- LtjJ1!L� Z State: _1,06 Do Normal Circumstances exis t on the site. No Community ID: Is the site significantly disturbed (Atypical Situation)? Yes Transect ID: t Is the area a potential Problem Area? Yes o Plot ID: Z-f — If needed, explain on reverse. L 7 0 3 0 1 ' VEGETATION l Z2�-` D q/ ' 3 Z.rI Dominant Plant Species %Cover Stratum Indicator Dominant Plant Species %Cover Stratum Indicator 2.XV13u S !_.r4 c - T TN j-�4 LEI 10. 3. L/IYZ IS 14- . CA-) 11. 4• 12. ' 5./44A1V1VCu/ .R / iw 13. 6 LoTzt s CmR Al. 10 54 C_ 14. 7,6}6,1ZaSn 5 7 !r . '�D FwC9 15. s.H-o(C(L_t (AN. /0 H- PG 16. Percent of Dominant Species that are OBL,FACW or FAC / (excluding FAC-. ' Remarks: D/ 7—C 11L(N4"_0w tiZS ICT- tj 01C 1-04t-C K-1.1- f%uJ ' HYDROLOGY ' Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary Indicators: Aerial Photographs _Inundated ether _Saturated in Upper 12 Inches o Recorded Data Available _Water Marks _Drift Lines Se ' ent Deposits Field Observations: _ rainage Patterns in Wetlands Seconda dicators(2 or more required): ' Depth of Surface Water: (in.) — xidized Root Channels in Upper 12 Inches Water-Stained Leaves Depth to Free Water in Pit: (in.) _Local Soil Survey Data FAC-Neutral Test Depth to Saturated Soil: J� (in.) _Other(Explain in Remarks) Remarks: 4'"A/ , t Z SOILS Map UnandPhase): h ) / � �O�D ' Name (Series and Phase: rf GF- Drainage Class: Taxonomy(Subgroup): Field ObservationsConfirm Mapped Type? Yes No Profile Description- ' Depth Matrix Color Mottle Colors Mottle Abundance/(inc Texture,Concretions, h Horizon (Munsell Moist) (Munsell Moist) Size/Contrast Structure etc y z N N� 1� S 7-S (a eGeri oN-�vNp. s q Buoy ��� y )t4 Hydric Soil Indicators: ' _Histosol Concretions Hstic Epipedon _High Organic Content in Surface Layer in Sandy Soils ' _Sulfidic Odor _Organic Streaking in Sandy Soils _Aquic Moisture Regime _Listed on Local Hydric Soils List ducing Conditions _Listed on National Hydric Soils List � _GleyeCddor Low-Chroma Colors _Other(Explain in Remarks) �1 Remarks: 1 r7�`/� k ey- CD��L=p A �S /,_0C4S /"i hW_sT /C%,v- WETLAND DETERMINATION ' Hydrophytic Vegetation Present? No (Circle) (Circle) Wetland Hydrology Present? Ales No ' Hydric Soils Present? es No Is this Sampling Point Within a Wetland? es No Remarks: P2/M fig/ I�YGQ. 0LIV'CA� - !�/1 ff�/VA 6� �'� /727>f� S J Approved by HQUSACE 3/92 ' 1 1 DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) Project/Site: C-le-!L PAc'wV Date: 8 7i 6 cf Applicant/Owner: / N County: Investigator: L. = State: Do Normal Circumstances exist on the site? p es No CommunityID: �6 Is the site significantly disturbed (Atypical Situation)? Yes Transect ID: Is the area a potential Problem Area? Yes o Plot ID: _ If needed, explain on reverse. G PS '-` 30 T 0-7ev. 382- ' /N. Y7 `30 ' 558.,;Z „ ' VEGETATION /A) 1200 Qom/ ' 33.CF o inant Plant Species %Cover Stratum Indicator Dominant Plant Species %Cover Stratum Indicator K L)6 u S P'f oc Sa S ��u 9. P 2. V6td .s l,4 G. to -S 1��1��U 10. 3.21JQ,l -E .S eey_- . / 11. A074wi aTu4/7 Rh2v (f FA G 12, ' 5 �i (/)ZCS'41Z. P7A+i'w 13. 6. /M Ito6. v P L, 14. 15. Percent of Dominant Species that are OBL,FACW or FAC (excluding FAC-. I ' Remarks: /-'Lo T S W f 10<)y -j0W TCI f /V p qs7�► eO�"pYl I/N C,OS HYDROLOGY ' _Recorded Data(Describe in Remarks): Wetland Hyd !.r5 logy Indicators: Stream,Lake,or Tide Gauge Prima ndicators: real Photographs nundated Other _Saturated in Upper 12 Inches No Recorded Data Available =Water Marks Drift Lines _Sediment Deposits Field Observations: _Drainage Patterns in Wetlands Secondary Indicators(2 or more required): ' Depth of Surface Water: ^� (in.) =Oxidized Root Channels in Upper 12 Inches Water-Stained Leaves Depth to Free Water in Pit: (in.) _Local Soil Survey Data r1 _FAC-Neutral Test ' Depth to Saturated Soil: y (in.) _Other(Explain in Remarks) Remarks: cS( a ra — C,-- W P 3 E N pu U N>o 7�`b N o7, �l L-� (---;IS FT vP�)7C& 1 s f — o N—. SOILS Map Unit Name ' (Series and Phase): Drainage Class: Taxonomy(Subgroup): Field Observations Confrm Mapped Type? Yes No Profile Description— Depth Matrix Color Mottle Colors Mottle Abundance/(inc Texture,Concretions, h Horizon (Munsell Moist) (Munsell Moist) Size/Contrast Structure etc — if Hydric Soil Indicators: ' His osol _Concretions stic Epipedon _High Organic Content in Surface Layer in Sandy Soils Sulfidic Odor _Organic Streaking in Sandy Soils Aquic Moisture Regime _Listed on Local Hydric Soils List —,educing Conditions Listed on National Hydric Soils List AZ Gleyed or Low-Chroma Colors _Other(Explain in Remarks) Remarks: ' A- fi-O&f ins 7v�o O Sol / . J WETLAND DETERMINATION , Hydrophytic Vegetation Present? e No (Circle) (Circle) Wetland Hydrology Present? No ' Hydric Soils Present? Q!s,j No Is this Sampling Point Within a Wetland? es o Remarks: —J Approved by HOUSACE 3/92 , 1 DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) ' Project/Site: Date: ?::V v Applicant/Owner: TUN County: Investigator: L. State: ' Do Normal Circumstances exist on the site? a No Community ID: s Is the site significantly disturbed (Atypical Situation)? Yes o Transect ID: Is the area a potential Problem Area? Yes o Plot ID: If needed, a lain on reverse. — &to's fi 3OFT Clew/ 36 Z' 'f7 ° 30 ' 55K-X ' VEGETATION IJ - duo 0 g r .33.S 1 i Dominant Plant S>ecies °' Cover Stratum Indicator Dominant Plant Species %Cover Stratum Indicator 2. If A CAawL 10. 3. 6U.S 1AG• 10 — _ ffff!�i_q 11. 42 V16 u b spEGT. T �_ 12, 5 U O 1-� F- -C, 13. 9. FAC 14. 7. ,"AAA)WYt /�6 Y W �, 15. 8.9 Q8&WA A*fs T 1 _ 06 L 16. Percent of Dominant Species that are OBL,FACW or FAC 3 � /O (excludingFAG. Remarks: 1 V. 5I'T 1*6 Hc�-. n414AI b17—GEf- /°Lo 7- /9-� C_u C_ve7t-r- o �t rt-e-y w . ad u ' HYDROLOGY Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary Indicators: _ al Photographs _Inundated Other _Saturated in Upper 12 Inches ' Recorded Data Available =Water Marks Drift Lines _Sediment Deposits Field Observations: _Drainage Patterns in Wetlands Secondary Indicators(2 or more required): ' Depth of Surface Water: (in.) =Oxidized Root Channels in Upper 12 Inches Water-Stained Leaves Depth to Free Water in Pit: CJ (in.) _Local Soil Survey Data _FAC-Neutral Test Depth to Saturated Soil: lb (in.) _Other(Explain in Remarks) 1 Remarks: N r ,�le S i 1 SOILS Map Unit Name 1 (Series and Phase): Drainage Class: Taxonomy(Subgroup): Field Observations Confirm Mapped Type? Yes No Profile Description- Depth Matrix Color Mottle Colors Mottle Abundance/(inches) Texture,Concretions, t�rizon (Munsell Moist) IMunsell Moil) Sim/Contrast Structure etc z A10NF- NA L� ►yS 1 Hydric Soil Indicators: 1 _Histosol Concretions —Hstic Epipedon _High Organic Content in Surface Layer in Sandy Soils 1 _Sulfidic Odor _Organic Streaking in Sandy Soils _Aquic Moisture Regime _Listed on Local Hydric Soils List Reducing Conditions _Listed on National Hydric Soils List Gleeyed or Low-Chhroma Colors _Other(Explain in Remarks) / [T Remarks: 6k,41/i=1 I,/ �I' ��7 Q �cu( TO l 7- e r/N -i�'L r s -G E c lk-S . 101 n C UL/ S 1/ /7 -61�-7 WETLAND DETERMINATION 1 Hydrophytic Vegetation Present? Ye (Circle) (Circle) Wetland Hydrology Present? es Hydric Soils Present? Yes Is this Sampling Point Within a Wetland? Yes 1 Remarks: 1 1 Approved by HQUSACE 3/92 1 1 1 1 1 DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) Project/Site: Dm vh-11 4v G4 GI21k—p/LG0 V Date: v v Applicant/Owner: — County: Investigator: 1. - ,fy/ F j/ State: (/(� Do Normal Circumstances exist on the site? Ve Community ID: SIs the site significantly disturbed (Atypical Situation)? Transect ID: ' Is the area a potential Problem Area? Yes Plot ID: If needed, explain on reverse. G7 PS t3or7' N q 7 630'5 7.a ' VEGETATION �') l ZZ0 (?? / ,j 3./ I Dorninant Plant S ecies %Cover Stratum ant for Dominant Plant Species %Cover Stratum Indicator 2 6u5 /LOG• �cu S_ 10. 3 !.� 11. 4.1 /C 12. ' S vNcu ItIS !-E•�O 1,tJ 13, s'6&e A/V/u 17,f &'0 l() ,a. �. 245T15 /� ZO 15. 16. Percent of Dominant Species that are OBL,FACW or FAC 0 (excluding FAG-). / E ' Remarks: l^� Vi TCH 1i// SG VE of HYDROLOGY Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary Indicators: rial Photographs _Inundated Other Saturated in Upper 12 Inches ' No Re,orded Data Available =Water Marks Drift Lines _Sediment Deposits Field Observations: _Drainage Patterns in Wetlands Secondary Indicators(2 or more required): ' Depth of Surface Water: (in.) =Oxidized Root Channels in Upper 12 Inches Water-Stained Leaves Depth to Free Water in Pit: (in.) _Local Soil Survey Data _FAC-Neutral Test Depth to Saturated Soil: .0111 (in.) _Other(Explain in Remarks) Remarks: So/ S 0 1 g T— / /V 6 5— /4 / V�''? / i� 1 � 5 1 SOILS Map Unit Name s' 1 (Series and Phase): �/�-w�� Drainage Class: Taxonomy(Subgroup): Field Observations Confirm Mapped Type? Yes No Profile Descriotion, 1 Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, (inches) }iorizon IMunsell Moist) (Munsell Moist) Sine/Contrast Structure etc 1 Hydric Soil Indicators: 1 _Hstosol _Concretions Histic Epipedon _High Organic Content in Surface Layer in Sandy Soils _Sulfidic Odor _Organic Streaking in Sandy Soils 1 _Aq Moisture Regime _Listed on Local Hydric Soils List ducing Conditions Listed on National Hydric Soils List Gleyed{orrr Low-Chroma ColorsT _Othher(Explain in Remarks) / Remarks:A I l Ciit / � ! �7 6_T ��Al s HDV5 — /f- 1 /f- lLovi 5 I /LOC s G/211'7/L= ( WETLAND DETERMINATION 1 [Hydrophytic Vegetation Present? es (Circle) (Circle) Wetland Hydrology Present? i4—es l Hydric Soils Present? esNo Is this Sampling Point Within a Wetland? Yes Remarks: No yUA-0I- l c/f you IVP 1 1 Approved by HQUSACE 3/92 1 S 7� SOW PlidT 12-oGk-- S , 5 70 D l h�. i�AC.�'1� �✓Le u Nb ��yjz. 1 r ��LL7 x4YYl C� i 1 DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) ' Project/Site: VA- 1W CO� CMG l(w V Date: 3 Applicant/Owner: 1 TVA) County: Investigator: State: �J ' Do Normal Circumstances exist on the site? Ye y ID:Community b Is the site significantly disturbed (Atypical Situation)? Yes o Transect ID: t Is the area a potential Problem Area? Yes o Plot ID: If needed, explain on reverse. C-7PS t zLf('�ir Fte-v 337-F:-r- N. �t� 30 SY.g ' VEGETATION t^J �zZ° 0-7 3 I. 7 �t minant Plant S ecies %Cover Stratum Indicator Dominant Plant Species %Cover Stratum Indicator ' (J LAS Sig. Y 0 S �/ 9. L-f S t2 . 70 — 10. 3. u R 0 _ 11. kI✓Y17 — 12. ' 5. a- � !T 13.6. (/6 U S 110 �'1 1l 14. 7. !t /� �'1 15. ' 6. 16. Percent of Dominant Species that are OBL,FACW or FAC 3 (excluding FAC-.Remarks: C C ey HYDROLOGY Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary Indicators: Aer' Photographs _Inundated ther _Saturated in Upper 12 Inches ' Recorded Data Available —Water Marks Drift Lines _Sediment Deposits Field Observations: _Drainage Patterns in Wetlands Secondary Indicators(2 or more required): ' Depth of Surface Water: in.) =Oxidized Root Channels in Upper 12 Inches Water-Stained Leaves Depth to Free Water in Pit: P—r(in.) _Local Soil Survey Data _FAC-Neutral Test Depth to Saturated Soil: in.) —Other(Explain in Remarks) Remarks: SOILS Map Unit Name ' (Series and Phase): Drainage Class: Taxonomy(Subgroup): Field Observations Confirm Mapped Type? Yes No Profil_ e 12g5cri tion- ' Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, n h Horizon (Munsell Moist) (Munsell Moist Size/Contrast Structure etc 3 Z ev. 5 ,4/yny `t 7.s- R S g m ED. '0V a 49 l'o 1 Hydric Soil Indicators: ' _Histosol Concretions F6stic don _Hgh Organic Content in Surface Layer in Sandy Soils Sulfdic Odor _Organic Streaking in Sandy Soils t _Aq isture Regime _Listed on Local Hydric Soils List ducing Conditions Listed on National Hydric Soils List Gleyed or Low-Chroma Colors n �, —Other(E�lain in Remarks) Remarks: � !�� Q /`� b T WETLAND DETERMINATION ' Hydrophytic Vegetation Present? es No (Circle) (Circle) Wetland Hydrology Present? e ' Hydric Soils Present? es Is this Sampling Point Within a Wetland? Yes iiJo ) Remarks: 1 W oW 6 D^n 0 I S / N Approved by HQUSACE 3/92 , t DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) Project/Site: Ott- O'1k_P91-1) Date: 3 Applicant/Owner: l 7`7>/V County: Investigator: — State: Do Normal Circumstances exist on the site? No Community ID: E Is the site significantly disturbed (Atypical Situation)? Yes o Transect ID: Is the area a potential Problem Area? Yes Plot ID: _ ' If needed, explain on reverse. C77,*P-S fi zAr r--r c--lev. 332,r::r N `-�7 °3 0 ' ' VEGETATION W / --I � 0 � , Do inant Plant S eci s %Cover Stratum Indicator Dominant Plant Soecies %Cover Stratum Indicator 1. U 5 3 O —� !fit 9. 2. l/,LtS �. ZU ��FGu 10. 3. S S — -- 11. 4. /L((/✓Il L O ! IrJV 12. /ih2/S fJ,�• O _ Lit_ 2 T( � 13. 6. / t//31/t 5 1012 • / _ G L4 14. 7.1 16itts �i}/V. T _ U 15. 6' 16. _ Percent of Dominant Species that are OBL,FACW or FAC i / O (excludingFAC-. 60 ' Remarks: n 130 tar S. U� 7� � - ✓�a� l� GQ�(� G�/(� Al 01 i mot¢ 8,o n�vv1 HYDROLOGY _Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary In ' ators: rial Photographs _I dated Other Saturated in Upper 12 Inches No Recorded Data Available —Water Marks Drift Lines _Sediment Deposits Field Observations: _Drainage Patterns in Wetlands U Secondary Indicators(2 or more required): ' Depth of Surface Water: d (in.) =Oxidized Root Channels in Upper 12 Inches p� Water-Stained Leaves Depth to Free Water in Pit: v (in.) _Local Soil Survey Data _FAC-Neutral Test Depth to Saturated Soil: 0' (in.) _Other(Explain in Remarks) Remarks: SOILS Map Unit Name ' (Series and Phase): Drainage Class: Taxonomy(Subgroup): Field Observations Confirm Mapped Type? Yes No Profile Description- Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, h H IM orizon unsell Moist) (Munsell Moist Size/Contrast Stru t re.etc /0 R 3 a- wvNL ' /�� LoA'Y►'1 `�. S 3 1�,/�/6Un� s�►�-��_ s/� rJ y Lit Hydric Soil Indicators: ' _Hstosol _Concretions _Histic Epipedon High Organic Content in Surface Layer in Sandy Soils , =Act fi ' dor —_Organic Streaking in Sandy Soils Act Moisture Regime Listed on Local Hydric Soils List ducing Conditions Listed on National Hydric Soils List leyed or Low Chroma Colorrs— _Other(Explain in Remarks) Remarks: DI� �� I/ -7 d 2E�r,ti4 li✓� lt4R7Y1- t x G0 OR I'L//2-0 C-k�j ,, &,,2 �/ 4- F O 20 `vt<. /p L �N F" lf-s 7- WETLAND DETERMINATION ' Hydrophytic Vegetation Present? es No (Circle) (Circle) Wetland Hydrology Present? No Hydric Soils Present? s No Is this Sampling Point W thin a Wetland? es No ' Remarks: Approved by HQUSACE 3/92 t DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) ' Projec d�L fZlL " Date: e 3 a wApplicant/O . County: Investigator: State: ' Do Normal Circumstances exist on the site? No CommunityID: �SS/p Is the site significantly disturbed (Atypical Situation)? Transect ID: ' Is the area a potential Problem Area? Yes o Plot ID: If needed, explain on reverse. 6 PS t 3a F-_r 3 CO 7 /-r Al g 7 o 3 o ' Sy b n VEGETATION W Id-; c, O`� ' 30, -7' " Dominant Plant Species %Cover Stratum Indicator Dominant Plant Species %Cover Stratum IInn-d�ato -- 9. 12o6 T 2. v 3 . .2-o S r 10. 3. S c r (JIV-1 �— � 11. 4.2y{juS y/t . 1 0 "s 12. ' 5. "I IS o 1 �!N 13. 6 6. (/� ET M 0 ��G 14. 15. ' a. I��NUNCu1uJ Rom°. / �l-� �IIA 16. Percent of Dominant Species that are OBL,FACW or FAC '�l y - (po /o (excluding FAC-. ' Remarks: 5-71=7 DS FY70-&T- d s 7 onr a-oI4-6 (S. ex "-119 HYDROLOGY Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary Indicators: real Photographs I dated Other Saturated in Upper 12 Inches ' Recorded Data Available =Water Marks Drift Lines _Sediment Deposits Field Observations: _Drainage Patterns in Wetlands Secondary Indicators(2 or more required): ' Depth of Surface Water: 0. 0 (in.) _Oxidized Root Channels in Upper 12 Inches _Water-Stained Leaves Depth to Free Water in Pit: L 2- (in.) _Local Soil Survey Data _FAC-Neutral Test ' Depth to Saturated Soil: (in.) —Other(Explain in Remarks) L7)q / tIV6 t'J 47e32R �N P/ tGt� r IN ' SOILS Map Unit Name ' (Series and Phase): Drainage Class: Field Observations Taxonomy(Subgroup): Confirm Mapped Type? Yes No Profile Description: t Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, (inches) Horizon (Munsell Moist) (Munsell Moist) Size/Contrast Structure,etc. f}- (n R 3 N� - (,o 4--." ' 10-19 6 1- 2- 7,S S WM Ste,-n409 S.��✓t�y t� Hydric Soil Indicators: ' Histosol _Concretions _ Uc Epipedon _High Organic Content in Surface Layer in Sandy Soils Sulfidic Odor _Organic Streaking in Sandy Soils _Aquic Moisture Regime _Listed on Local Hydric Soils List _5aducing Conditions _Listed on National Hydric Soils List eyed or Low-Chroma Colors _Other(Explain in Remarks) Remarks: F7 0 T /v J T ' WETLAND DETERMINATION ' Hydrophytic Vegetation Present? es No (Circle) (Circle) Wetland Hydrology Present? No Hydric Soils Present? es No Is this Sampling Point Within a Wetland. Ye No Remarks: Approved by HQUSACE 3/92 ' DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) ' Project/Site: b td V+/I -IAt - 142I C IZ k- Date: 3 6 Applicant/Owner: T County: Investigator: L t G1TT?Z_t. State: ' Do Normal Circumstances exist on the site? MO Community ID: PAS Is the site significantly disturbed (Atypical Situation)? Yes N Transect ID: ' Is the area a potential Problem Area? Yes Plot ID: If needed, e22lain on reverse. CAPS '` Z3/-n-T j5�-v-34� l r-r N 'f7 ' 301 SY. 3 VEGETATION W /a';'- O °I ' 30, 8 Dominant Plant Species ° Cover Stratum Indicator Dominant Plant Species %Cover Stratum Indicator 1 Nv5AV6. F79 G 9 2 ajSEG• Z S ' 10. 3. ST7c _ 11. O 12. 5.�f I1/w�wst,�LN'1 AZ. 0 13. ID S 14. 7. 15. 8. 16. Percent of Dominant Species that are OBL,FACW or FAC /OD /d (excluding —( 1 Lf FAC-. 7 ! �v ! ' Remarks: AF7 /�*'v�i i'f/��S�dE ��Gf(//�! (��S ' �vv� B(In-YV( -7 ' HYDROLOGY Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary Indicators: nal Photographs _Inundated Other _Saturated in Upper 12 Inches _No Recorded Data Available Water Marks ' -Drift Lines Sediment Deposits Field Observations: _Drainage Patterns in Wetlands Secondary Indicators(2 or more required): Depth of Surface Water: (in.) _Oxidized Root Channels in Upper 12 Inches _Water-Stained Leaves Depth to Free Water in Pit: (in.) _Local Soil Survey Data _FAC-Neutral Test Depth to Saturated Soil: (in.) —Other(Explain in Remarks) ' Remarks i7�� e LI/[�YL Ply T 1 S � D�St7 �F- 7- ol/ S7M-,00 1 1 1 SOILS Map Unit Name 1 (Series and Phase): Drainage Class: Field Observations Taxonomy(Subgroup): Confirm Mapped Type? Yes No Profile Description; 1 Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, (inches) Horizon (Munsell Moist) (Munsell Moist) Size/Contrast Structure,etc D VA 3114 NvNC-, - V S•4JD 1 cat, 1 Hydric Soil Indicators: 1 _"stosol _Concretions _"stic Epipedon _Hgh Organic Content in Surface Layer in Sandy Soils 1 Sulfidic Odor _Organic Streaking in Sandy Soils _Aquic Moisture Regime _Listed on Local Hydric Soils List _Reducing Conditions _Listed on National Hydric Soils List Gleyed or Low-Chroma Colors _Other(Explain in Remarks) Remarks: WETLAND DETERMINATION 1 Hydrophytic Vegetation Present? (Circle) (Circle) Wetland Hydrology Present? F.-S '62 Hydric Soils Present? Yes Is this Sampling Point Within a Wetland? Yes o 1 Remarks: 1 1 Approved by HQUSACE 3/92 1 1 1 i 1 DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) Project/Site: Ljf VAl' t �GQ,¢L(�C/L /��� Date: !/ Applicant/Owner: County: Investigator: L �( _ State: ' Do Normal Circumstances exist on hsite?t e t's o Community ID:Is the site significantly disturbed (Atypical Situation)? Transect ID: ' Is the area a potential Problem Area? Yes o Plot ID: o — If needed, explain on reverse. GAG'-�►iWbj b�/ c�°S 2�I�C,- ''G�,�--5/GNP--, n�� ��,grz vl�+, of s�" VEGETATION Dominant Plant Species %Cover Strattuum Indicator Dominant Plant Soecies %Cover Stratum Indicat r 2. Q-I&V rLuB. S �9 G ,o.`y it 3.1�6EsW_ Vs 4.D /e-//L 6.18e—• 10 5 12.Y M ei/* 14 ' 5.TAY0&4 CnrZa �� 0 13._�CIA • 6.RUAU S (A/Z. / 0 P_)7 C-q 14. 7. lg S PC• D S 15. 8.r�nC/f71rY/ �✓1 �� � �/ 16. ' Percent of Dominant Species that are OBL,FACW or FACr �Z (excludingFAC-. 3 (/ Remarks: Ce81/, ,6/*Ze�_ vl71AGluY 1y10 1i ✓30-c"v NI7 LA�- /Q crr •g7 ram df <sl�p sc0P�, �7-� Go1�-6�-- tea rfv ill Q Al. AJ N N 3S FT fyr- 1 fu ' HYDROLOGY _Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary Indicators: _ nal Photographs _Inundated Other _Saturated in Upper 12 Inches ' Recorded Data Available =Water Marks Drift Lines _Sediment Deposits Field Observations: Drainage Patterns in Wetlands Secondary Indicators(2 or more required): Depth of Surface Water: (in.) _Oxidized Root Channels in Upper 12 Inches ' ,r _Water-Stained Leaves Depth to Free Water in Pit: (in.) _Local Soil Survey Data _FAC-Neutral Test Depth to Saturated Soil: 0' (in.) _Other(Explain in Remarks) Remarks: c�i7 / l�}T f'�//L G65 /rY I'll) /NuNYJ�� v 1 1 SOILS Map Unit Name (Series and Phase): Drainage Class: Field Observations Taxonomy(Subgroup): Confirm Mapped Type? es No Profile Descri ttjon• ' Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, (inches) Horizon Wooll Moist) (Munsell Moist) Size/Contrast Structure,etc a i nI-r,N� Gomel -SZt -U0AVI 1 Hydric Soil Indicators: ' _His of _Concretions tic Epipedon _High Organic Content in Surface Layer in Sandy Soils _Sulfidic Odor _Organic Streaking in Sandy Soils ' Aquic Moisture Regime _Listed on Local Hydric Soils List _5educing Conditions _Listed on National Hydric Soils List Gleyed or Low-Chroma Colors _Other(Explain in Remarks) Remarks: V004--- sk- Ill Sod- IN -fkST- /0/,jcill , WETLAND DETERMINATION i Hydrophytic Vegetation Present? No (Circle) (Circle) Wetland Hydrology Present? 10 es No ' Hydric Soils Present? a No Is this Sampling Point Within a Wetland? Yes No Remarks: 1/"��`N"L �'7�� �/�i���'1�� l,� c��1�� /��".S/�� �/✓ S 7�� Approved by HQUSACE 3/92 DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) ' Project/Site: ,- 44WIV Date: 7j O Applicant/Owner: County: Investigator: State: (J Do Normal Circumstances exist on the site? e No Community ID: P� 1Ps Is the site significantly disturbed (Atypical Situation)? Yes o Transect ID: Is the area a potential Problem Area? Yes Plot ID: ' If needed, explain on reverse. ' VEGETATION Dominant Plant Species %Cover Stratum Indicator Dominant Plant Species %Cover Stratum Indicator 2. U O 10. 3. c�z C 30 � � 11. 4.n 1 t�2/ CE K.jt O _ 12. 5.2 AU U lb —� j(�/ 13. ' 6. U8 L{S P/!p. S 14. T Dl C mu/j —3 L, " 15. ' 'G — 16. Percent of Dominant Species that are OBL,FACW or FAC �� _ �O • (excluding FAC-. p ' Remarks: No Q0M qw+vl,+7 7 /n/ LS G ' HYDROLOGY Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary Indicators: Aerial Photographs _Inundated Other _Saturated in Upper 12 Inches No Recorded Data Available —Water Marks Drift Lines _Sediment Deposits Field Observations: _Drainage Patterns in Wetlands Q� Secondary Indicators(2 or more required): Depth of Surface Water: (in.) _Oxidized Root Channels in Upper 12 Inches Water-Stained Leaves Depth to Free Water in Pit: ice/ (in.) _Local Soil Survey Data _FAC-Neutral Test Depth to Saturated Soil: (in.) —Other(Explain in Remarks) ' Remarks: b 14 V Hgo,-'' f 107 IC �j Q �Zj1/vy SOILS Map Unit Name �� �,�/) ' (Series and Phase): �t5ytwoCJN Drainage Class: Field Observations Taxonomy(Subgroup): Confirm Mapped Type? Yes No� i 7- Profile Description• Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, (inches) Horizon (Munsell Moist) (Munsell Moist) Size/Contrast Structure.etc Hydric Soil Indicators: ' _Histosol _Concretions Histic Epipedon _High Organic Content in Surface Layer in Sandy Soils ' Sulfidic Odor _Organic Streaking in Sandy Soils Aquic Moisture Regime _Listed on Local Hydric Soils List _Reducing Conditions _Listed on National Hydric Soils List _Gleyed or Low-Chroma n Colors �/ _Other(Explain in Remarks) > Remarks: S-D/I cS o 4iO4, SZ.dj��� � T 00 �S 7-,= 4 / b16-- � , ,�r—r. o f � psi` �, p T #,q-p s.9 1"12 47.,blv w>/1 A �(� , cE . WETLAND DETERMINATION ' Hydrophytic Vegetation Present? Yes ircle) (Circle) Wetland Hydrology Present? Yes ' Hydric Soils Present? Yes Is this Sampling Point Within a Wetland? Yes no Remarks: ,S � 77q,+1 THerg& fS /V D I-I yAI2O 1 d � 7�1�S �Ev,g7i v�l -- TD O c.S�• Gl.E�92 C,�,�,ynl L� , nl VGb C`7�47/vA/ - tflS /.4 y /s �o j ��✓O JC•�Tr �/� t o� r�c�'lg.Nr f�-y,Gv2v�o�r-y � �,✓v-z-�,gn� �so,`�s Approved by HQUSACE 3/92 1 1 DATA FORM 1 ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) 1 Project/Site: 1)14V I &1&- h"()lft Date: 0.17 Lo Applicant/Owner: — County: Investigator: State: :6j 1 Do Normal Circumstances exist on the site? es No Community ID: Is the site significantly disturbed (Atypical Situation)? Yes OMD Transect ID: /rvl•l Is the area a potential Problem Area? Yes Plot ID: - 1 If needed, explain on reverse. 6,PS - 516 IVA/ 7v a W 6Wk- - --10o"Af6 rblz- "r& 1 VEGETATION Do inapt Plant S ecies %Cover Stratum Indicator Do Want Plant S ecies %Cover Stratum Indicator 1 t -u s Dly6 T'�clm 1 2 Nits�vr3 10.fZ-CIAL4S !�. /O _ 4 12. 1 5 13. 6.1n2"C 1 dO 14. 7.'4 4as 60e. 15. 7! 2 16. 1 Percent of Dominant Species that are OBL,FACW or FAC (excluding FAC-. . 1 Remak �00 yr—r r-- eA14 12-6 J /" 14yee- 1 HYDROLOGY 1 _Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary Indicators: _ 'al Photographs _Inundated Other _Saturated in Upper 12 Inches Recorded Data Available _Water Marks 1 =Drift Lines Sediment Deposits Field Observations: _Drainage Patterns in Wetlands Secondary Indicators(2 or more required): Depth of Surface Water: (in.) _Oxidized Root Channels in Upper 12 Inches 1 _Water-Stained Leaves Depth to Free Water in Pit: (in.) _Local Soil Survey Data _FAC-Neutral Test Depth to Saturated Soil: (in.) Other(Explain in Remarks) 1 Remarks: s of is ►���s-� /,) r�% .�,ti. �Pr ��P r -�d 7., Y/0) 1 1 1 SOILS Map Unit Name A (Series and Phase):/-7 1, ICI Drainage Class: Field Observations Taxonomy(Subgroup): Confirm Mapped Type? Yes No Profile Descrioti= ' Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, n Horizon (Munsell Moist) Wunsell Moist) Size/Contrast Structure,etc J(a , . s g �o Hydric Soil Indicators: _Histosol _Concretions _Histic Epipedon _High Organic Content in Surface Layer in Sandy Soils , _Sulfdic Odor _Organic Streaking in Sandy Soils Aqui Moisture Regime _Listed on Local Hydric Soils List _ uang Conditions _Listed on National Hydric Soils List Gleyed or Low-Chroma Colors _Other(Explain in Remarks) Remarks: HVP2-- 8 J 71d 2-T!; --%. e (N , ' Sv)Z I.S 0-10)37- ice ° 1 WETLAND DETERMINATION ' Hydrophytic Vegetation Present? Yes No (Circle) (Circle) Wetland Hydrology Present? , Hydric Soils Present? es o Is this Sampling Point Within a Wetland? Yes No Remarks: Approved by HQUSACE 3/92 ' DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) ' Project/Site: V — Date: O Applicant/Owner: Cl 7w ZPAJ County: Investigator: State: Do Normal Circumstances exist on the site? e No Community ID: �_ Is the site significantly disturbed (Atypical Situation)? Qe Transect ID: Is the area a potential Problem Area? Yes C�o Plot ID: ' If needed, explain on reverse. C7/-*'�S t97t rt-p-v L6� FT ' VEGETATION W l� • I ,SS uS Dominant Plant Species %Cover Stratum Indicator Dominant Plant Species %Cover Stratum Indicator 1. PG• 1— 9. ' 2. S �fc �— 1 o. 4. D 12. 5. S 13. /ND f 6. .✓/0��i7 14. 7. 5 S �( 7 15. (�f}s6 8. 16. 5p(LTV ° Percent of Dominant Species that are OBL,FACW or F/AC (excluding FAC-). Remarks: A--/✓&�r —TV 4-PUAI Cs�/¢—.S�( t'*'Y�� Q �N �I d KJeRq. GfjA �SCS kgpfr A)6T 1^J6j4_ngV 1,V ,DOM . cu ' HYDROLOGY Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: tream,Lake,or Tide Gauge Primary Indicators: Aerial Photographs _Inundated _Other _Saturated in Upper 12 Inches No Recorded Data Available Water Marks =Drift Lines Sediment Deposits Field Observations: _Drainage Patterns in Wetlands Secondary Indicators(2 or more required): Depth of Surface Water: (in.) _Oxidized Root Channels in Upper 12 Inches ' _Water-Stained Leaves Depth to Free Water in Pit: �(in.) _Local Soil Survey Data _FAC-Neutral Test Depth to Saturated Soil: (in.) _Other(Explain in Remarks) ' Remarks: E 1 #13 SOILS Map Unit Flame ' (Series and Phase): Drainage Class: Field Observations Taxonomy(Subgroup): Confirm Map ped Type? Yes No Profile Description: ' Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, (inches) Horizon (Munsell Moist) Wunsell Moist) Size/Contrast Structure.etc Lo'- 10 tZ 3 z SLy, ky4vyl ' 13 o LI Hydric Soil Indicators: _Kstosol _Concretions Hstic Epipedon _High Organic Content in Surface Layer in Sandy Soils ' Sulfidic Odor _Organic Streaking in Sandy Soils Aquic Moisture Regime _Listed on Local Hydric Soils List _Reducing Conditions _Listed on National Hydric Soils List _Gleyed or Loy%-Chroma Colors �^t /_Other(Explain in Remarks) /1 �./� / Remarks: � 17 1 f I�IJd r M��//Kf L � SO;L, / 8/& 12-0c11- ��/ A'14 J01-72F7"-9t - WETLAND DETERMINATION ' Hydrophytic Vegetation Present? its (Circle) (Circle) Wetland Hydrology Present?Hydric Soils Present? o Is this Sampling Point Within a Wetland? Yes ' Remarks: 1 Approved by HQUSACE 3/92 ' DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) ' Project/Site: Iv��l /�}9i1� co"H --C4a'L /O''k4"d Date: 8ov Applicant/Owner: County: Investigator: L. State: Do Normal Circumstances exist on the site? es No Community ID: Is the site significantly disturbed (Atypical Situation)? A@ Transect ID: Is the area a potential Problem Area? Yes LE"o If needed, explain on reverse. Plot ID: � — 67PS t J 7 L-Z� Y3(,1-r N L1F7 - 30 L/—S ' VEGETATION w lam-' Oy 'a /� j Dominant Plant Species %Cover Stratum Indicator Dominant Plant Species %Cover Stratum indicator 1.. ul ! 1 9. 2. /V t 10 tt 10. 3. 4. Y eq r) 12. 5. S A7"• 13. LIV-0T=D 6 v 14. n�C ND 7.JM A, 7 15. i ) o2 e ercent of Dominant Species that are OBL,FACW or FAC (excluding FAC-. cJ� ^� ) Remarks: n//IJbT _ C t�J/V� G'vTJJ .� Qc G a NJL-P. ' HYDROLOGY Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge PT�Eupper rial Photographs Other _ 12 Inches No Recorded Data Available _Water Marks -Drift Lines Sediment Deposits Field Observations: _Drainage Patterns in Wetlands Secondary Indicators(2 or more required): Depth of Surface Water: (in.) _Oxidized Root Channels in Upper 12 Inches ' —Water-Stained Leaves Depth to Free Water in Pit: (in.) _Local Soil Survey Data FAC-Neutral Test Depth to Saturated Soil: [r/ (in.) _Other(Explain in Remarks) Remarks: —v t SOILS Map Unit Name " n ' (Series and Phase): �l/�(9�w V Drainage Class: Field Observations Taxonomy(Subgroup): Confirm Mapped Type? Ye No Profile Description: ' Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, (inches) Horizon (Munsell Moist) (Munsell Moist) Size/Contrast Structure,etc, A 3X S 41vv� 31 S - Hydric Soil Indicators: ' _Hstosol Concretions _Hstic Epipedon —Hgh Organic Content in Surface Layer in Sandy Soils ' _Sulfdic Odor _Organic Streaking in Sandy Soils Aqugftisture Regime Listed on Local Hydric Soils List ucing Conditions _Listed on National Hydric Soils List eyed or low-Chroma Colors _Other(Explain in Remarks) Remarks:A- l E) n �— /� �T ��le S �a ^!• ' t WETLAND DETERMINATION ' Hydrophytic Vegetation Present? No (Circle) (Circle) Wetland Hydrology Present? No , Hydric Soils Present? a No Is this Sampling Point Within a Wetland? &I No Remarks: Approved by HQUSACE 3/92 , t DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) Project/Site: Du Vkll PA--Cj Ll Date: �] Applicant/Owner: County: Investigator: State: ' Do Normal Circumstances exist on the site? a No CommunityID: Is the site significantly disturbed (Atypical Situation)? Yes Transect ID: ' Is the area a potential Problem Area? Yes o Plot ID: If needed, explain on reverse. G/;iS � 3L/" �fjU ��2�v N �7" 30 � '� o" ' VEGETATION 4�J Dominant Plant Species %Cov r Stratum Indicator__ Dominant Plant Species %Cover Stratu Indicator 2.Qt n rrs 10. I X�/t/I'1,7e l7 OL nq 5.6 Ims a S C. 1 S 13. (5V S,f XD ff l( . ' s. i vrit ( _ —� Ci 1a. /p�2T��Wv1 AN-201: 7. KS .LOB. 15. 8 5 16. Percent of Dominant Species that are OBL,FACW or FAC 3I bo /J (excluding F-AC-. / Remarks: (� -FlVi� /` +ter/iv ,! 7- N- ' HYDROLOGY _Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary I icators: Aerial Photographs ndated Other Saturated in Upper 12 Inches No Recorded Data Available =Water Marks Drift Lines —Sediment Deposits Field Observations: _Drainage Patterns in Wetlands Secondary Indicators(2 or more required): ' Depth of Surface Water: (in.) =Oxidized Root Channels in Upper 12 Inches !!9' Water-Stained Leaves Depth to Free Water in Pit: (in.) _Local Soil Survey Data FAC-Neutral Test Depth to Saturated Soil: y (in.) _Other(Explain in Remarks) ' Remarks: l S �5 - 77Z/X/-'�7BV f72 t,4L S(4,71c?9 C=6 4-6- SOILS Map Unit Name (Series and Phase): /f t-y �7Z^W�/CJF� Drainage Class: Field Observations Taxonomy(Subgroup): Confirm Mapped Type? Yes No Profile Descriptiow Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, (inches) Horizon (Munsell Moist) (Munsell Moist) Size/Contrast Structure etc A _ /O 3 /0 VA � ? a MP"On/ S/�A� Ldi'(-y✓] , Hydric Soil Indicators: _Histosol Concretions Histic Epipedon _Fligh Organic Content in Surface Layer in Sandy Soils Sulfdic Odor _Organic Streaking in Sandy Soils Aqu isture Regime _Listed on Local Hydric Soils List ducing Conditions Listed on National Hydric Soils List Gleyed or Low-Chroma Colors n �(_Other(Explain in Remarks) Remarks: C4/•NVT OIrs /'r�r_ / o ` 6 in,I v /P-�/f m 5'4 /2 -T/cam 7+V BSc f�f e8 t WETLAND DETERMINATION Hydrophytic Vegetation Present? No (Circle) (Circle) Wetland Hydrology Present? Y No Hydric Soils Present? es No Is this Sampling Point Within a Wetland? es No ' Remarks: Approved by HQUSACE 3/92 DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) ' Project/Site: /�t— C f Date: 7 d Applicant/Owner: d County: Investigator: State. tAJ ' Do Normal Circumstances exist on the site? N Community ID: Is the site significantly disturbed (Atypical Situation)? Yes Transect ID: Is the area a potential.Problem Area? Yes Plot ID: If needed, explain on reverse. 6K° t 3y1-r �bo �v ° 30 a ' VEGETATION Dominant Plant Species %Cover Stratum Indicator Dominant Plant S ecies %Cover Strat Indicator 1. Nd.S /Q 9 GWt ' 2 / A Gat- � o• (� U V 3. AG o N fa[. ✓er L N r 4 s� (/� 13._�X#J5.S I— C • /0 15. ' C .. D _ 16. Species that are OBL,FACW or FAC � ' 3 3 v l�� O ✓Y_V /v,S 7- /v IC-r!r d HYDROLOGY Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary Indicators: Aerial Photographs _Inundated _Other —Saturated in Upper 12 Inches No Recorded Data Available =Water Marks Drift Lines _Sediment Deposits Field Observations: Drainage Patterns in Wetlands Secondary Indicators(2 or more required): Depth of Surface Water: (in.) _Oxidized Root Channels in Upper 12 Inches Water-Stained Leaves Depth to Free Water in Pit: (in.) _Local Soil Survey Data _FAC-Neutral Test Depth to Saturated Soil: (in.) _Other(Explain in Remarks) ' Remarks: V - n 1r`r1CAfV1Z-S ' AV) P O)tiff/ vJ0 S/o/9E D 1 (-r 5.9-7 m fit SOILS Map Unit Name (Series and Phase): /� Drainage Class: Field Observations Taxonomy(Subgroup): Confirm Mapped Type? Yes No Profile Description: ' Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, (inches) Horizon (Munsell Moist)_ (Munsell Moist) Size/Contrast Structure etc loll - A- C o A '7 s4./V9 1 l0 Hydric Soil Indicators: _Fistosol Concretions listic Epipedon _High Organic Content in Surface Layer in Sandy Soils ' _Sulfidic Odor _Organic Streaking in Sandy Soils Aquic Moisture Regime _Listed on Local Hydric Soils List _Reducing Conditions _Listed on National Hydric Soils List _Gleyed or Low-Chroma Colors _Other(Explain in Remarks) Remarks: - C & 7o Pe7GX-M,,J� /'�/A Y2VO,wn Uc Cc�(JR S e T n•, C f 6 N duT WETLAND DETERMINATION Hydrophytic Vegetation Present? Yes Circle) (Circle) Wetland Hydrology Present? Yes Hydric Soils Present? Yes Is this Sampling Point Within a Wetland? Yes Remarks: ' Approved by HQUSACE 3/92 ' DATA FORM ' ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) ProjectISite: V f�/� / Date: ApplicantlOwner: County: Investigator: State: OF ' Do Normal Circumstances exist on the site? Community ID: .SS Is the site significantly disturbed (Atypical Situation)? Ye`s N Transect ID: ' Is the area a potential Problem Area? Yes o Plot ID: If needed, explain on reverse. E- S l n R dwvw N AA r/i �� ' fist d✓►'I , -T '�/�4 L- VEGETATION AD rV Y*fl 1 t-ID W - /V 61 f-�J•,, Dominant Plant Species %Cover Stratum Indicator Dominant Plant Species %Cover Stra m Indicator 2✓/3 70 c s."yI5en*&XV 5a z.�}L�'►C_/N/!G /OPWA4 oPA ems S b 3.0 Doi O _ G t 11. nG Ovj pit _� a. S �i 12. �/ G(�f/vs Q l) + G�.� 5.�'xmpi4R'G��• f l7 s' 13.6YeXJf J jt1W X 0 6. IL t A ► 0 l7O 14. 8.al V'S7_ LYE 10 . 16. ' Percent of Dominant Species that are OBL,FACW or FAC (excluding FAC-. ' Remarks: ' HYDROLOGY Recorded Data(Describe in Remarks): Wetland Hydrology Indicators: Stream,Lake,or Tide Gauge Primary Indicators: nal Photographs _I dated VZOther Saturated in Upper 12 Inches No Recorded Data Available =Water Marks Drift Lines _Sediment Deposits Field Observations: _Drainage Patterns in Wetlands Secon,p<Indicators(2 or more required): ' Depth of Surface Water: (in.) =Oxidized Root Channels in Upper 12 Inches Water-Stained Leaves Depth to Free Water in Pit: CJ (in.) _Local Soil Survey Data _FAC-Neutral Test ' Depth to Saturated Soil: (in.) _Other(Explain in Remarks) Remarks: R? sV01 ) G9 1 SOILS Map Unit Name ' (Series and Phase): Drainage Class: Field Observations Taxonomy(Subgroup): Confirm Mapped Type? Yes No Profile Description: 1 Depth Matrix Color Mottle Colors Mottle Abundance/ Texture,Concretions, (inches) Horizon (Munsell Moist) (Munsell Moist) Size/Contrast Structure.etc. (p ,f 4- R (o i►^ S S� GU ' R - SST "41M Hydric Soil Indicators: 1 Hstosol _Concretions =Histic Epipedon _FGgh Organic Content in Surface Layer in Sandy Soils 1 Sulfidic Odor _Organic Streaking in Sandy Soils Moisture Regime _Listed on Local Hydric Soils List ducing Conditions _Listed on National Hydric Soils List Gleyed or Low-Chromma Colors _Other(Exiolain in Remarks) ;.� 7�-� Remarks:ai-V �6X V,9;,l , p���C44 To VGI / " • " 1 � 5 7Pd ��%, sue Y-V �T&X-k1WW45-: �o 1 WETLAND DETERMINATION 1 Hydrophytic Vegetation Present? es No (Circle) (Circle) Wetland Hydrology Present? No 1 Hydric Soils Present? es No Is this Sampling Point Within a Wetland? Yes No Remarks: L4v& k' /i 1f ox G't07q&-i' f(--• S✓►'1 l9// PM-ri o^f 0//,j pywl-cam!" AA'&' rw11"1 361>) I A-1--e-"94 P,,10 lz;,. 1 Approved by HQUSACE 3/92 1 1 1 1 1 ' Appendix D:National Wetland Inventory Map 1 1 1 1 . ' Wetland l avestigation&Delineation Report:DuvallAvenue NE Widening Project Page 77 Ttie City, of Renton September 23,2004 �( Duvall Avenue Wetland Map North end oft e ro•ec Area _ Legend 1 ti j✓ Roads States i {n/ Streams 1 Wetlands T South en of the . Estuarine Water Pro•ect A ea ■ Estuarine Wetland 1 ■ Lake(Deep) ■ Lake(Shallow) Marine Water ■ Marine Wetland 1 ■ Other Vegetated Wetland Inland Aquatic Bed rAp Inland Herbaceous Wetland Inland Forested Wetland (� ■ Inland Shrub Swamp Nallonal Wallande Pay9YIlory I Y,�}Q�TI(T' ■ Pond Pond(Drawdown) Tidal River Lower Perennial River 1 Upper Perennial River ■ Intermittent River ■ Other Perennial River 1 Upland Other 1 i 1 1 i 1 ' Appendix E.•Ding County Sensitive Areas Inventory Map 1 1 1 ' Wetland In-restigation&Delineation Report:Duvall A+venue NE Widening Project Page 79 The City of Renton September 23,2004 Map Output Page 1 of 1 King County Off 7MM� ORMT M- • ' WAP - Sensitive Areas all themes t„1 _ _ 9 SL su I 1. � 4 SC AND '( � L .f.GNU F =- -- � n �'�.•�/lam-' �. ,�St jnTii PL ,F �r _ 1: I - - 3 r. -. NL 251 N PL - - - ysr. nQ '{' _ Y NF:FaT"ti 5T G�! NL 24-iti 5i a7 Gu xti t" NL2l°si :i1 61t mil -fit .2Nt1 a� _ �hl=JtSv `T NL •, — ' NE 16TH ST r. _ -a_'yr'L dNt'1 If1 ,ii - > Y n z ? u, _ I .. Z ' + 71- IC]20¢9 icall9 c000ly 0 0.51 mi Legend _• County Boundary SAO Stream Lakes and Large Rivers ' Streets C ass 1 -, Streams I g,,,y: r C m 2 a�T,a ® SAO Weiland /r Ar�c+Jb /Y Cs,s2Si'nvid C av,3 Pa rce is J x ass'ttl I information included on this map has been compiled by King County staff from a variety of sources and is subject to change without notice. King County makes no representations or warranties,express or implied,as to accuracy,completeness,timeliness,or rights to the use of such nformation. King County shall not be liable for any general,special,indirect,incidental,or consequential damages including,but not limited to, st revenues or lost profits resulting from the use or misuse of the information contained on this map.Any sale of this map or information on ' is map is prohibited except by written permission of King County King_County I G1S Center I News 1 Services I Comments I Search By visiting this and other King County web pages,you expressly agree to be bound by terms and conditions of the site.The details. t 1 http://www5.metrokc.gov/servlet/com.esri.esrimap.Esrimap?ServiceName=overview&ClientVersi... 7/30/2004 1 AppendixF.•HGV Data Sheets 1 1 1 1 I i I 1 1 1 1 1 Wetland Investigation&Delineation Report: DuvallAvenue NE Widening Project Page 81 The City of Renton September 23,2004 1 rrcAVP P2 Appendix B. Assessment of Function Capacity: Judgmental Method Complete the following"qualitative assessments"of function only if you chose not to complete ' the reference-based assessments"that began on page 20. Instructions: In each row,indicate with a checkmark if your site looks more like the"highest capacity" condition or the"minimal capacity"condition. Then circle a number on the scoring line below this table, based on your overall impression of the site's capacity to support this function. Alternatively, instead of checkmarks,you can assign a score to each row by placing a number in the center column of each row,e.g., 0(minimal capacity) -to- 1.0(highest capacity), and then combine the row scores in a manner of your choosing,perhaps weighting some rows more than others if you believe those indicators to have greater influence on a function. Whether ' based on mathematical operations or another way of synthesizing,be sure to circle your final score for the function on either or both of the shaded"Judgment Lines"at the bottom. Definitions of many of the terms are provided in Appendix A. Function Capacity (Judgmental Assessment of): ' Water Storage and Delay Highest Functioning Suggested 11Tinimal Functioning Score: ' _The proportion of the site that is inundated _None of the site is inundated only seasonally. only seasonally is large. The seasonally- The site is always comprised only of permanent inundated parts are defined by flood marks on water or a high water table without surface water. trees and shrubs,stunted plants,and/or distinctive assemblages of plant species. Most of the surface water in the seasonally- _Water added from rain events empties quickly inundated zone remains for a few days after 0 b from all of the site,via outlets or percolation. ' each rain event,but not less or more. This often is evidenced by: _lack of flood marks on trees and shrubs _scarcity of wetland plants(few FAC or wetter) little or no mottling of soils throughout the seasonally-inundated zone. site is located on slope site is flat(few or no puddles,etc.) ✓resence of outlet channels ' Your Judgments: Function Capacity score= 0- or circle one of the following: 1.0 .8 .6 .4 .2 0 ' Highest Lowest 86 1 1 Function Capacity (Judgmental Assessment of): 1 Sediment Stabilization and Phos horus Retention Highest Functioning Suggested Minimal Functioning 4 Score- _High score was assigned to Water Storage _Low score was assigned to Water Storage& / 1 &Delay function(inundation is long,frequent, :Q Delay function(water levels barely fluctuate). 4 deep,extensive). ' Texture of the predominant substrate in the Upper 12 inches of the predominant substrate 1 upper 12 inches of the seasonal zone is mostly in the seasonal zone is mostly sand or gravel. clay,silty clay,sandy clay,clay loam,or native / organic. See p.83 for key to soil textures. 1 _Herbs,shrubs,and/or vines together always _All or nearly all of the substrate in the occupy a large percent of the ground cover in Q, seasonal zone is unvegetated. the seasonal zone. Very little soil is bare. i _Shallow pools and puddles are present and _Shallow pools are absent at all times of the 1 �well-irtterspersed with herbaceous vegetation year _Substrates have never been recontoured or _ ubstrates throughout the entire site have otherwise subjected to compaction,excavation, recently been recontoured or otherwise subjected « 1 plowing,disking,leveling. No evidence of to compaction,excavation,plowing,disking, severe erosion within the site. leveling. Extensive evidence of severe scour or 40 erosion may be present within the site. No ` sediment marks on trees or other plants. 1 _ Most of the site has complex .✓The substrate is uniformly flat,with no M micro topography(hummocks,puddles,etc.) noticeable microto h (no hummocks,etc.) i 1 Your Judgments: ip Function Capacity score= 0 (,,, or circle one of the following: r 1.0 .8 .6 .4 .2 0 1 Highest Lowest r 1 Function Capacity (Judgmental Assessment of): ANitrogen Removal 1 Highest Functioning Suggested Minimal Functioning ~ Score: « Note:Proceed with assessing this function only if mottling and/or other features that indicate oxygen deficits in 1 soils/sediments are found in at least part of the site. High score was assigned to Water Storage _Low score was assigned to Water Storage& &Delay fimction(inundation is long,frequent, U (�. Delay function(water levels barely fluctuate) « exten ve) 1 Some surface water or saturation remains _No surface water or saturation remains year- year-round or nearly so,and is dispersed around round. If seasonal flooding occurs,the surface « the site such that water flow paths and residence water is concentrated in one part of the site,e.g., 1 times are long. cham wl or pond,and does not remain for long. Soil microbial processes are fairly mature, Soil microbial processes are not well- ! as possibly suggested by abundance of dead developed,as possibly suggested by lack of dead wood,thick and extensive soil organic layer, wood,thick soil organic layer,and/or large- �1 1 and many large4ameter trees diameter trees 1 87 p 1 �' ' Highest Functioning Suggested Minimal Functioning Score: _Substrates have never been recontoured or Substrates throughout the entire site have otherwise subjected to compaction,excavation, recently been recontoured or otherwise subjected or leveling. No evidence of severe erosion to compaction,excavation,or leveling. within the site. None of the site was ' constructed from upland. Most of the site has complex V Most of the site has no noticeable microt h (hummocks,puddles,etc.) micr h (no hummocks,puddles,etc.) Site is burned annually or biennia! Site has not been burned in recent ears Your Judgments: Function Capacity score= 0 or circle one of the following: ' 1.0 .8 .6 .4 .2 0 Highest Lowest ' Function Capacity (Judgmental Assessment off: Pximary Production ' Highest Functioning Suggested Minimal Functioning Score: _All of the site has vascular plants and/or _Much of the site is devoid of vascular plants water with algae. © and/or algae. A variety of plant forms is present in about _Whatever plants are present are mainly of a equal proportions(trees,shrubs,and herbs)and 7_ single form(trees,shrubs,or herbs) is wel-distributed throughout the site Some shallow(<3 ft)surface water remains The site is entirely dry during much of the ' year-round or nearly so,and in summer is year. dispersed around the site,e.g.,many puddles _Substrates have never been recontoured or Substrates throughout the entire site have ' otherwise subjected to compaction,excavation, Q recently been recontoured or otherwise subjected or leveling. No evidence of severe erosion to compaction,excavation,or leveling. Severe within the site. erosion may be evident within the site. _The site's contributing watershed contains _The site's contributing watershed is almost ' no cropland,paved surface,buildings,or lawns Z- entirely cropland,paved surface,buildings,and —especially in the parts closest to the site. lawns—especially the parts closest to the site. ' Your Ju ents: Function Ca acity score= s or circle one of the following: 1.0 .8 .6 .4 .2 0 ' Hi est Lowest 88 ' Function Capacity (Judg V al Assessment of): rmore ulationThe ' Highest Functioning Suggested Minimal Functioning Score: Note: This function should be assessed only for riverine si at which part of the site is permanently inundated and connected by surface water during summer to other e Entire water surface in summer is shaded None of the water is shaded by vegetation or by a closed tree canopy or by topography. topography,and all of the water is shallower than ' — 2m 4uring summer. Almost the entire site consists of water _ Very little of the site contains permanent deeper than 6 ft. water,and it never is deeper than a few inches. i ' Your Judgments: Function Ca acity score or circle one of the following: 1.0 .8 .6 .4 .2 0 ' Zffighest Lowest 1 Function Capacity (Judgmental Assessment of) Resident Fish Habitat Support ' Highest Functioning Suggested Ritual Fun ' Wing 1 Score: 1 ' Note: This function may be assessed only if part of the site is rmanently inure and the subclass is Riverine Impounding. 1 _Permanent water is extensive,and the site — Pe ent water is very limited 1 is connected only briefly with associated ' channels 1 Non-native fish species are absent _Non-native species dominate the resident fish 1 component,although some natives are present _Shallow water area and proportion of the _If present,shorelines are steep,dropping 1 ' site that is inundated only seasonally is of sharply into water deeper than 6 fL,with little or 1 sufficient extent and quality to support no seasonal zone being present spawning by most species,and s high ' densities of aquatic invert( t ' _Cover(aquatic pl trees, boulders, _Where water is present seasonally,cover that overhanging dee ter spots,etc.)that could shelter fish from predation is scarce or provides year-ro shelter from predation is lacking. abundant Wa quality(especially dissolved _Water is heavily contaminated with ��n)is excellent pollutants,and/or experiences severe and ' ' rolonaed oxygen deficits ' Your Judgments: Function Capacity score= W ` or circle one of the following: 1.0 .8 .6 .4 .2 0 1 ' Mg4est Lowest 89 ' Functio n Capacity (Judgmental Assessme t of): Anadromous Fish Habitat Support ' Highest Functioning Suggested Minimal Functioning Score: Note: Proceed with assessing this function only if part of the site is accessible to anadromous fish seasonal inundation _Floodwaters spill into the site across a _Floodwaters spill into site across a broad broad bank or through a wide(unconstricted) bank or through a constricted)mouth ' mouth _Floodwaters remain in the site far more _ No I=water remains inthe site for more than a few days than a J�p days ' —Non-native fish 'es are an absent — on-native fish 'es predominate Substrates suitable for spawning or feeding Substrates suitable for spawning or feeding are extensi vely present are scarce or absent ' _Cover(aquatic plants,logs,boulders, _Cover that provides shelter from currents and overhanging trees,deep water spots,etc.)that predators is scarce or lacking from all parts of the provides shelter from currents and predators" site abundant,at least in the seasonal zone _Water quality(especially oxygen) _Water is heavily contaminated with is excellent pollutants,and/or experiences severe and prolonged oxygen deficits ' _Summertime maxima do not Summertime temperature maxima exceed exceed re ran a of anadromous fish limits lethal to anadromous fish Your Judgments: 0 �� Function Capacity score= or circle one of the folio ' 1.0 .8 .6 .4 .2-,, 0 Highest Lowest Function Capacity (Judgmental Assessment of): Invertebrate Habitat Support ' Highest Functioning Suggested Minimal Functioning Score: f _Surface water is permanent or nearly _Surface water is present only briefly(RI sites) permanent,AND all of the water is shallower (� or not at all(SF sites),OR nearly all of the water ' than 2 feet during May-September* deeper than 6 ft during May-September _Cover(especially aquatic plants,woody over(aquatic plants,woody debris.)that debris)that supports algae and provides shelter could support algae and provide shelter from from currents and predators is abundant in both ©` currents and predators is lacking the seasonal and permanent zone Plant forms and species are highly diverse O Only one plant form is present,and plant sp"richness is very low Vegetation is well-interspersed with pools egetation and pools(if any)are in 2 separate areas-or zones _Water quality(especially dissolved oxygen) 11�_Water is heavily contaminated with is excellent Q pollutants,and/or experiences severe and ' prolonged o en deficits ' 90 Highest Functioning Suggested Minimal Functioning Score: _Substrates have never been recontoured or otherwise subjected to Suites throughout the entire site have ' J compaction,excavation, recently been recontoured or otherwise subjected or leveling. No evidence of severe erosion to compaction,excavation,or leveling,or the site within the site. was entirely constructed from upland. ' —Surrounding landscape contains large landscape contains no wetlandsacreage of wetlands,including some with a jj=7 different water regime than the assessed site. * Areas likely to retain water well into the growing season may have many of these ci�uuacteristics: _prevalence of wetland plants(FAC or wetter,and especially OBL) —mteasrve mottling&gieying of sods 61089boat most of the sasonalty-mandated mnc _site is located in flatland terrain(not ou slopes) ' —site is large relative to its contributing watershed(>4%of total area) extensive microtopographic variation(many hu®ocks,pu es,ddl etc) absence of oudd dmnels,and/or site is managed for water e Your Judgments: Function Ca ac' score= or circle one of the following: 1.0 .S .6 .4 .2 0 ' Lowest ' Function Capacity (Judgmental Assessment off: Amphibian & Turtle Habitat ' Highest Functioning Suggested Minimal Functioning Score: b ' Permanent water is absent,but shallow —Site never contains surface water surface water that contains extensive partly- OR submerged fine-stemmed herbs'is extensive, _Site is entirely surface water,which9either and recedes very gradually during the months a never fluctuates verticall y ly(i.e.,no seasonal of January-May'(i.e.,during this period, 'J/ zone is present),or(b)fluctuates too much-more there are at least 30 days when water levels are v' titan 2 inches during all 10-day periods,or(c)is stable or have a vertical fluctuation of <2 devoid of any emergent herbs that are partly- inches). submerged during the springtime,or(d)flows OR: faster than 4 inches/second during the entire —Permanent water is extensive and springtime,everywhere in the site,or(e)is mostly contains(a)abundant underwater cover(aquatic deeper than 40 inches and is bordered by a ' plants,logs,boulders,overhanging trees,deep shoreline with a very steep slope water spots,etc.)that provides shelter from predation,and(b)partly-submerged fine- stemmed herbs' _ Bullfrogs and other non-native predators t Bullfrogs and other non-native predators are are absent 1" abundant _If surface water everywhere in the site is _If surface water everywhere in the site is ' flowing during springtime,there are at least 30 /A- flowing during springtime,there are never more days when current velocities are slow(<4 than 30 days when current velocities are slow(<4 inches/second) inches/second) There is extensive and varied woody ( Y _ There is no woody debris in the seasonal debris in the seasonal zone zone 91 ' Highest Functioning Suggested Minimal Functioning Score: _ Either vegetation and pools are well, _ Vegetation and pools are in separate areas of ' interspersed during high water level,or any the site during high water level,and any woody woody vegetation bordering the larger pools is vegetation bordering the larger pools is located located mostly on their north end 3 mostly on their south end. Afiouotopography is ' MicrotopoWaphy is quite wed. too flat to allow many puddles to form(no hummocks,etc. Suitable basking sites for turtles and calling 0 _There are no basking sites for turtles or sites for s are t sites for ' _Land cover in adjoining uplands is a mix of _Land cover in adjoining uplands largely natural grassland and woodland;woodlands p.`l/ contains impervious sur&ce,bare mod,lawns, have extensive and varied woody debris andzow arms ' Shorelines are gently sloping 1- VAhoreliaes,if present,are mostly Busy roads are distant from the site roads adjoin the site Many other wetlands(excluding flowing 4 There are no other wetlands(excluding water)are resent nearbywater)nearby _Water quality is excellent _Water is heavily contaminated with b pollutants,and/or experiences severe and 1g pged oxygen deficits Substrates have never been recontoured or _Substrates throughout the entire site have otherwise subjected to compaction,excavation, recently been recontoured or otherwise subjected or leveling. No evidence of severe erosion to won,excavation,or leveling,or the within the site. entim site was constructed f vin upland. ' _Soils and submerged sediments contain a _Soils and_subnmged sediments contain no moderately thick organic layer(leaf litter,peat, Q organic layer,and are mostly Bard-packed clay;or decomposed organics,etc.) organic layer is so thick that water is chronically ' anoxic 'Emergent herbs with stem diameter of<3 min(m iael(measured 2 es below a water surface):this includes Healy all pamn nab hubs except cattail. 2 Areas likely to retain water well into thegrowingcease®Wayhaven=Y of these charaMein ies ' —prevalence of wetland phis(FAC or wetter,sod espaeially OBL) intensive mottling do gteying of sorts tbrougborrt most of the seaso-my-inundated zone. _site is loci in 8adland terrain(not on slopes) _extensive topographic variation(many huffs•puddles,etc.) abseoce of outlet dnrnwis,and/or site is nwAned fur water storage. ' During the January-May period,30 days of stable water levels are requged for some Upatic ampr'b_eggs to made,and during this time fluctuations of greater than 2 inches are lethal(Richter 1997). 'Vegetation located north of pools is less likely to block sunlight important to developing aquatic amphibians(Richter 1997). Your Judgments: Function Capacity score= or circle one of the folio 1.0 .8 6 .4 2, 0 Hi est. Lov►�st 92 ' Function Capacity (Judgmental Assessment of): / Breeding Waterbird Su ort ' 1! Wiest Functiouing Suggested Minimal ftnctioning Score:_The site contains many acres of permanent Surface water is present for only a few weeks ' or nearly permanent surface water,or a large during April-June,OR permanent wetland(excluding streams)is Nearly all of the water remains d located nearby I ft Burin May-Septembereeper than 6 1 g ' AND AND Water depths are predominantly shallow(2 to 24 inches)in A nil-A .. _No Permanent wetlands are located nearby. ' Most of the shoreline is not st 0, Most of the shoreline is st Larger pools of water are bordered by a _Larger pools,if wide,dense band of tall herbs and/or shrubs in pant,are bordered by only A ril-A `f a narrow band of sparse vegetation ' —About equal proportions of water and ve ge _Vegetation and pools(if any)are in 2 separate d ' thhee A ri1 are present,and are well-interspersed areas or zones,not interspersed —Ariod ' _Water levels do not abruptly rise a foot or _more Burin Water levels are prone to quickly rise at least ril-June �� 1 f_A large variety of herbs is present;the site Vegetation cover April-June is mostly compri of one sed is actively managed to control the spread of O or a few non-native highly ' non-native or invasive ies invasive native speves _Land cover in surrounding buffer zones is Land cover in surrounding buffer zones mainly a mix of natural grassland,woodland, I el contains and water largely impervious surface,bare ground, ' B roads are distant from the site 1 d row crops. roads border the site Water uali is excellent er is heavily contaminated with ollutants _Substrates have never been recontoured or _Substrates have recently been recontoured or ' otherwise subjected to compaction, b excavation, otherwise subjected to o Q J Compaction,excavation,or r leveling. leveling (unless such activities were done in connection with restoring a site to its historical Surrounding landscape lau condition) contains large Surrounding landscape contains no wetlands acreage of wetlands,including some with a or different water regime than the assessed site. pondsd ' _Nest boxes,nest platforms,and other _No nest box artificial structures intended to assist waterbird es,nest platforms,or other nesting are extensive and are regularly artificial structures intended to assist waterbird maintained, nesting are present,or they aren't well- ' _Part of the site is visited infrequently maintained. April-June by humans on foot y to C) None of the site is visited frequently by humans on foot durin nil A -June $ Areas 1>kely to retain water wen into the waterbird Ee 6reedmg season may have many of these characteristics: f welland lants(FACorwetter,andespecially=ei. otttmg&g►eying of soils throughout ntost of the d in flatland terrain(not on slopes)icrotopogra*ic variafion(manyhummocks,utlet channels.and/or site is man ed for water P Ell Your Judgments: I Function' Capacity —score— �`� , or circle one of the following: 1.0 .8 .6 ,4 .2 0 1 Highest Lowest 1 93 1 t1 Function Capacity (Judgmental Assessment of): VF-Winterin & Mi ato Waterbird Support ' Highest Functioning Suggested Minimal Functioning Score: The site contains extensive surface water _The site contains very little surface water ' during all or most of the fall-winter-spring .0 , 15 d all or most of the fall-winter-spring ri during sP g Period Water depths in most of the site during _If forested,water depths during the fall- ' most of the fall-winter-spring period are winter-spring period are always shallower than 24 shallow(<24 inches) 0 • 5 inches-in all of the site(shallower depths are permissible then in unforested wetlands). _ A large portion of the site is inundated the water that is present,nearly all is ' onlyseasonallyU 7i _ resent Year-round- The acreage of various depth categories is 2 _✓ A single water depth category predominates. about equal during annual inundation ' —Microtopographic variation(hummocks, ✓The substrate is very flat,essentially addles,etc. is extensive rohibitin the formation of addles. _None of the site is visited frequently by O Water is heavily contaminated with pollutants humans on foot during- tember- ril. — ' _A large variety of herbs is present The site _Vegetation cover(except in fanned wetlands) is actively managed to control the spread of is mostly comprised of one or a few non-native or non-native or invasive species highly invasive native species ' _Water quality is excellent c) _Virtually all of the site is visited frequently by hugnans on foot durinR April4une _Substrates have never been recontoured or _Substrates have recently been recontoured or otherwise subjected to compaction,excavation, otherwise subjected to compaction,excavation,or or leveling. leveling (unless such activities were done in connection with restoring a site to its historical condition) ' Va *cultuTr:al ndover in surrounding buffer zones is Land cover in surrounding buffer zones a ix of natural grassland,woodland, largely contains impervious surface,bare ground, lands,and water 1 s,and row s. rrounding landscape contains large Surrounding landscape contains no wetlands, e of hydric soil,wetlands,and water, pends,or hydric soil. including some with a different water regime than the assessed site. Your Judgments: Function capacity score or circle one of the following: ' Hiest 1.0 .8 .6 .4 .2 0 Lowest ---] 94 Function Capacity (Judgmental Assessment of): on bird Habitat Su ort ' Highest Functioning S=estea Minimal Functioning d Score• _Some part of the site contains surface water vSurface water is never present at any time ' unn all(or neady all)of the ear. Z of the The site contains a large acreage of closed- —Acreage of these is very small. canopy forest,native shrubland,wet prairie,and/or ' eatt wetland. _If the site is mostly native shtubland and/or _If the site is mostly shrubland and/or forest, forest,then(a)large-diameter trees are numerous, then(a)trees are very smug(b)snags @)snags of various sizes area ( } ags are abundant,(c)under absent,(c)under-canlacking, canopy shrub cover is extensive,and(d)a large a and(d)the variety of trees shrubs, vines is variety of trees,shrubs and vines is present. small,and comprised almost entirely of non_ nativ e 'es. If the site is mostly wet prairie and/or —�fffthe site is emergent wetland,then(a)a large variety of herbs mostly prairie and/or emergent is Present,(b)the site is actively managed to ��II�then(a)the variety of herbs is small, © the the site is not actively managed to control control the spread of non-native or invasive herb spread ofna�n-native or invasive herb species,(c)trees and he shrubs,if present,are species,(c)trees and shrubs,if present,are concentrated in one or a few parts of the site. scattered wi _Land cover in surrounding buffer zones is dely out the site. predominantly a mix of natural �L and cover in surrounding buffer zones grassland,native v largely contains impervious surface,bare shrabland,woodland,wetlands,and water jMwd,lawns,and row None of the site is visited frequently by crops. humans on foot Every part of the site is visited frequently B roads are distant from the site by�umans on foot � the site. Your Judpanents: B roads adjoin Function act score= d s or circle one of the folio L0 .8 .6 .4 .2 Hi est Lowest ' Function Capacity (Judgmental Assessment of): V Support of Characteristic V etation Highest Functioning Suggested Minimal Functioning Score• P, �t ubs,and herbs ate all present,and © ly one plant form(tree,shrub,herb)is out the site —present ff trees are present,many are very old and —If trees are present,all are young 1 e,with abundant evidence of regeneration —If shrubs are present,all of the significantly If shrubs are ' — "es are natives � Z —_ Pit,they are comprised of t shrub just one species,and it is non-native If herbs are present,all of the significant) resent herb ecies are natives y Z If herbs are present,they are comprised of ust one es,and it is non-native (hummocks,' _Mi cks, addles ographic relief is great —The substrate is very flat,essentially,etc. Springtime surface water levels drop very "bi ' the formation of addles.S slowly(<2 vertical inches per 30 days, —Springtime water levels fluctuate or drop rapidly(>2 inches per 10 days,average) average) 95 1 1 Highest Functioning Sued Minimal Functioning _None of the site is visited Score. humans on foot Every by - Every part of the site is visited frequently by 1 Fnlativeshrubland, ds are humans on foot distant from the site C Bus roads ad'oin the site.ver in the contributing watershed isly`batural" _Land cover in the contributing watershedrely contains impervious surface,bare ground,er in lawns,and row s. surrounding buffer zones is Land cover in surrounding buffer largelyy a mix of natural grassland,and,woodland,wetlands,and contains sous ,bare ground,lawns,and r+ow crops. 1 Your Judgments: Function Ca city score= or circle one of the foli44ho 1.0 .8 ,6 _q ,2 1 � Lowest 1 Now, summarize your function capacity Summary Form(p. 59). Be sure to indicate that you used the Judgmentalessments by recording M a Assessment ' Method. 1 1 1 1 i 1 1 1 1 96 1 W erLA P /J O ff7 b-f- l i✓C71�N S Appendix B. Assessment of Function Capacity: Judgmental Method Complete the following "qualitative assessments"of function only if you chose not to complete ' the reference-based assessments"that began on page 20. Instructions: In each row,indicate with a checkmark if your site looks more like the"highest ' capacity"condition or the"minimal capacity"condition. Then circle a number on the scoring line below this table,based on your overall impression of the site's capacity to support this function. Alternatively, instead of checkmarks, you can assign a score to each row by placing a ' number in the center column of each row, e.g., 0(minimal capacity) -to- 1.0(highest capacity), and then combine the row scores in a manner of your choosing,perhaps weighting some rows more than others if you believe those indicators to have greater influence on a function. Whether ' based on mathematical operations or another way of synthesizing, be sure to circle your final score for the function on either or both of the shaded"Judgment Lines"at the bottom. Definitions of many of the terms are provided in Appendix A. Function Capacity (Judgmental Assessment of): Water Storage and Delay Highest Functioning Suggested Minimal Functioning Score: The proportion of the site that is inundated _None of the site is inundated only seasonally. only seasonally is large. The seasonally- The site is always comprised only of permanent inundated parts are defined by flood marks on 2, water or a high water table withoutsurface water. ' trees and shrubs,stunted plants,and/or distinctive assemblages of plant species. Most of the surface water in the seasonally- _Water added from rain events empties quickly inundated zone remains for a few days after from all of the site,via outlets or percolation. ' each rain event,but not less or more. This often is evidenced by: lack of flood marks on trees and shrubs scarcity of wetland plants(few FAC or ' wetter) little or no mottling of soils throughout the seasonally-inundated zone. _site is located on slope ' —site is flat(few or no puddles,etc.) presence of outlet channels ' Your Judgments: Function , aci score= (� `� S, r circle one o the following: 1.0 .8 .6 .4 .2 0 ' Highest 0 Lowest 86 r Function Capacity (Judgmental Assessment of): ' Sediment Stabilization and Phos horus Retention Highest Functioning Suggested Minimal Functioning Score: « _High score was assigned to Water Storage Low score was assigned to Water Storage& ' &Delay function(inundation is long,frequent, �rj lay function(water levels barely fluctuate). r deep,extensive). « Texture of the predominant substrate in the _Upper 12 inches of the predominant substrate ' upper 12 inches of the seasonal zone is mostly in the seasonal zone is mostly sand or gravel. r clay,silty clay,sandy clay,clay loam,or native o organic. See p. 83 for key to soil textures. _Herbs,shrubs,and/or vines together always _All or nearly all of the substrate in the ' occupy a large percent of the ground cover in �. seasonal zone is unvegetated. « the seasonal zone. Verylittle soil is bare. ' _Shallow pools and puddles are present and _Shallow pools are absent at all times of the «well-irate ersed with herbaceous vegetation year _Substrates have never been recontoured or _Substrates throughout the entire site have otherwise subjected to compaction,excavation, recently been recontoured or otherwise subjected ' plowing,disking,leveling. No eyidcaMof _ to compaction,excavation,plowing,disking, severe erosion within the site. ti leveling. Extensive evidence of severe scour or erosion may be present within the site. No sediment marks on trees or other plants. _ Most of the site has complex _.L _ The substrate is uniformly flat,with no microto h (hummocks,puddles,etc.) noticeable microto o h (no hummocks,etc.) Op ' Your Judgments: 40 Function Capacity score= D • 3 q9 or circle one of the following: 4P 1.0 .8 .6 .4 2 0 10 ' Highest �� . �_� Lowest r Op Function Capacity (Judgmental Assessment of): to Nitro r en Removal III' Highest Functioning Suggested Minimal Functioning Score: T Note:Proceed with assessing this function only if mottling and/or other features that indicate oxygen deficits in ' soils/sediments are found in at least part of the site. _High score was assigned to Water Storage _ ow score was assigned to Water Storage& 911 &Delay function(inundation is long,frequent, y 15 Delay function(water levels barely fluctuate) « ' extensive) — Some surface water or saturation remains No surface water or saturation remains year- « year-round or nearly so,and is dispersed around round. If seasonal flooding occurs,the surface the site such that water flow paths and residence water is concentrated in one part of the site,e.g., ' times are long. channel or pond,and does not remain for long. _Soil microbial processes are fairly mature, _Soil microbial processes are not well- r as possibly suggested by abundance of dead p developed,as possibly suggested by lack of dead wood,thick and extensive soil organic layer, (,l wood,thick soil organic layer,and/or large- 40 ' and many large-diameter trees diameter trees V 87 � ' Highest Functioning Suggested Minimal Functioning Score: _Substrates have never been recontoured or _Substrates throughout the entire site have ' otherwise subjected to compaction,excavation, recently been recontoured or otherwise subjected or leveling. No evideag of severe erosion `2 to compaction,excavation,or leveling. within the site. None of the site was ' constructed from upland.Most of the site has complex Most of the site has no noticeable microto o h (hummocks,puddles,etc. ``fir microto h (no hummocks,puddles,etc. Site is burned annually or biennially Site has not been burned in recent years ' Your Judgments: Function Capacity score= d 3�, or circle one of the following: ' 1.0 .8 .6 .4 .2 0 Highest Lowest ' Function Capacity (Judgmental Assessment of): Primary Production Highest Functioning Suggested Minimal Functioning Score: _All of the site has vascular plants and/or O _Much of the site is devoid of vascular plants wat with algae. and/or a] ae. A variety of plant forms is present in about _Whatever plants are present are mainly of a equal proportions(trees,shrubs,and herbs)and single form(trees,shrubs,or herbs) is well-distributed throughout the site Some shallow(<3 ft)surface water remains _The site is entirely dry during much of the year-round or nearly so,and in summer is year. dispersed around the site,e. .,many puddles _Substrates have never been recontoured or _Substrates throughout the entire site have ' otherwise subjected to compaction,excavation, recently been recontoured or otherwise subjected or leveling. No evidence of severe erosion to compaction,excavation,or leveling. Severe within the site. I eroAimmay be evident within the site. The site's contributing watershed contains _The site's contributing watershed is almost no cropland,paved surface,buildings,or lawns `Q entirely cropland,paved surface,buildings,and —especially in the parts closest to the site. lawns—especially the parts closest to the site. Your Judgments: Function Capacityscore= 2; or circle one of the following: 1.0 .8 .6 .4 3 .2 0 ' Highest L✓ Lowest ' 88 I I 1 ' Function Capacity (Judgmental Assessment of): Thermore ulation \K I ' Highest Functioning Suggested Minimal Functioning Score: 1 4 Note: This function should be assessed only for riverine sit t which part of the site is permanently inundated ' and connected by surface water during summer to other ater bodies. 1 Entire water surface in summer is shaded _None of the water is shaded by vegetation or by a closed tree canopy or by topography. topography,and all of the water is shallower than ' — 2m durin summer. water 1 Almost the entire site consi Very little of the site contains permanent dee er than 6 ft. water,and it never is deeper than a few inches. ' Your Jud R-pacity s: Function score= __AK or circle one of the following: 1 ' 1.0 .8 .6 .4 .2 0 1 Highest Lowest 1 Function Capacity (Judgmental Assessment of): 1 ' Resident Fish Habitat Support 1 Highest Functioning Suggested Minimal Fun ' Wing 1 Score: I d ' Note: This function may be assessed only if part of the site is permanently inured and the subclass is Riverine IMPding. _Permanent water is extensive,and the site _P anent water is very limited is connected only briefly with associated ' channels _Non-native fish species are absent _Non-native species dominate the resident fish component,althoughsome natives are resent ' _Shallow water area and proportion of the _If present,shorelines are steep,dropping site that is inundated only seasonally is sharply into water deeper than 6 ft.,with little or sufficient extent and quality to sup no seasonal zone being present spawning by most species,an pports high ' densities of aquatic inve rates , _Cover(aquatic ts,logs,boulders, _Where water is present seasonally,cover that overhanging tre ,deep water spots,etc.)that could shelter fish from predation is scarce or ' provides y -round shelter from predation is lacking. ' abun _Water quality(especially dissolved _Water is heavily contaminated with oxygen)is excellent pollutants,and/or experiences severe and , ' prolonged oxygen deficits ' Your Judgments: „ I A— , Function Capacity score= I V or circle one of the following: 1.0 .8 .6 .4 .2 0 � ' Highest Lowest 89 , Function Capacity (Judgmental Assessment of): ' Anadromous Fish Habitat Support Highest Functioning Suggested Minimal Functioning Score: ' Note: Proceed with assessing this function only if part of the site is accessible to anadromo ish during seasonal inundation _Floodwaters spill into the site across a _Floodwat ill into the site across a broad broad bank or through a wide(unconstricted) bank or a wide(unconstricted)mouth ' mouth _Floodwaters remain in the site for more _ No surface water remains in the site for more than a few days than a few days t Non-native fish species are generally absent Non-native fish species predominate _Substrates suitable for spawning or feeding Substrates suitable for spawning or feeding are extensive) resent are scarce or absent _Cover(aquatic plants,logs,boulde R _Cover that provides shelter from currents and overhanging trees,deep water spo ,etc.)that predators is scarce or lacking from all parts of the provides shelter from currents4nd predators is site abundant,at least in the W"4 zone _Water quality( ially dissolved oxygen) _Water is heavily contaminated with is excellent pollutants,and/or experiences severe and prolonged oxygen deficits ' _S rtime temperature maxima do not _Summertime temperature maxima exceed exce preferred range of anadromous fish limits lethal to anadromous fish ' Your Judgments: — ( , Function Capacity score- N or circle one of the following: 1.0 .8 .6 .4 .2 0 ' Highest Lowest ' Function Capacity (Judgmental Assessment of): Invertebrate Habitat Sup ort Highest Functioning Suggested Minimal Functioning Score: _Surface water is permanent or nearly _Surface water is present only briefly(RI sites) ' permanent,AND all of the water is shallower or not at all(SF sites),OR nearly all of the water than 2 feet during Ma -Se tember* remains deeper than 6 ft during May-September _Cover(especially aquatic plants,woody _Cover(aquatic plants,woody debris.)that debris)that supports algae and provides shelter could support algae and provide shelter from ' from currents and predators is abundant in both S currents and predators is lacking the seasonal and permanent zone _Plant forms and species are highly diverse -} _Only one plant form is present,and plant ' species richness is very low— Vegetation is well-interspersed with pools .Zl Vegetation and pools(if any)are in 2 separate areas or zones _Water quality(especially dissolved oxygen) _Water is heavily contaminated with ' is excellent pollutants,and/or experiences severe and prolonged oxygen deficits ' 90 ' Highest Functioning Suggested Minimal Functioning Score: _Substrates have never been recontoured or _Substrates throughout the entire site have otherwise subjected to compaction,excavation, recently been recontoured or otherwise subjected or leveling. No evidence of severe erosion to compaction,excavation,or leveling,or the site within the site. was entirely constructed from upland. ' _Surrounding landscape contains large _Surrounding landscape contains no wetlands acreage of wetlands,including some with a (P or ponds different water regime than the assessed site. ' * Areas likely to retain water well into the growing season may have many of these characteristics: _prevalence of wetland plants(FAC or wetter,and especially OBL) _intensive mottling&gleying of soils throughout most of the seasonally-inundated zone. _site is located in flatland terrain(not on slopes) —site is large relative to its contributing watershed(>4%of total area) extensive microtopographic variation(many hummocks,puddles,etc.) absence of outlet channels,and/or site is managed for water storage. Your Judgments: Function Ca aci score= or circle one of the following: Hi est Lowest Function Capacity (Judgmental Assessment of): ' Amphibian & Turtle Habitat Highest Functioning Suggested Minimal Functioning Score: _Permanent water is absent,but shallow _Site never contains surface water surface water that contains extensive partly- OR submerged fine-stemmed herbs' is extensive, _Site is entirely surface water,which either ' and recedes very gradually during the months i�, (a)never fluctuates vertically(i.e.,no seasonal of January—May'(i.e.,during this period, zone is present),or(b)fluctuates too much—more there are at least 30 days when water levels are than 2 inches during all 10-day periods,or(c)is stable or have a vertical fluctuation of <2 devoid of any emergent herbs that are partly- inches). submerged during the springtime,or(d)flows OR: faster than 4 inches/second during the entire _Permanent water is extensive and springtime,everywhere in the site,or(e)is mostly contains(a)abundant underwater cover(aquatic deeper than 40 inches and is bordered by a ' plants,logs,boulders,overhanging trees,deep shoreline with a very steep slope water spots,etc.)that provides shelter from predation,and(b)partly-submerged fine- stemmed herbs' Bullfrogs and other non-native predators —Bullfrogs and other non-native predators are are absent �j abundant If surface water everywhere in the site is _If surface water everywhere in the site is flowing during springtime,there are at least 30 flowing during springtime,there are never more days when current velocities are slow(<4 0 than 30 days when current velocities are slow(<4 inches/second) inches/second) ' — There is extensive and varied woody r1 _ There is no woody debris in the seasonal debris in the seasonal zone lJ zone 1 91 ' Highest Functioning Suggested Minimal Functioning Score: _ Either vegetation and pools are well- _ Vegetation and pools are in separate areas of interspersed during high water level,or any the site during high water level,and any woody woody vegetation bordering the larger pools is vegetation bordering the larger pools is located located mostly on their north end.' mostly on their south end. Microtopography is ' Microtopography is quite varied. too flat to allow many puddles to form(no hummocks,etc. _Suitable basking sites for turtles and calling 2 _There are no basking sites for turtles or sites for frogs are present calling sites for frogs ' _Land cover in adjoining uplands is a mix of _Land cover in adjoining uplands largely natural grassland and woodland;woodlands contains impervious surface,bare ground,lawns, have extensive and varied woody debris and row crops Shorelines are gently slopmg Shorelines,if present,are mostly steep Busy roads are distant from the site Busy roads adjoin the site _Many other wetlands(excluding flowing _ There are no other wetlands(excluding water)are present nearby flowing water)nearby Water quality is excellent Water is heavily contaminated with pollutants,and/or experiences severe and prolonged oxygen deficits ' _Substrates have never been recontoured or _Substrates throughout the entire site have otherwise subjected to compaction,excavation, recently been recontoured or otherwise subjected or leveling. No evidenS of severe erosion ,Z to compaction,excavation,or leveling,or the within the site. entire site was constructed from upland. Soils and submerged sediments contain a Soils and submerged sediments contain no moderately thick organic layer(leaf litter,peat, / _` organic layer,and are mostly hard-packed clay;or decomposed organics,etc.) organic layer is so thick that water is chronically ' anoxic. 'Emergent herbs with stem diameter of<3 mm(measured 2 inches below springtime water surface);this includes nearly all perennial herbs except cattail. Z Areas likely to retain water yvell into the growing season may have many of these characteristics: ' tZjorevalcoce of wetland plants(FAC or wetter,and especially OBL) intensive mottling&gleying of soils throughout most of the seasonally-inundated zone. _site is located in flatland terrain(not on slopes) _extensive microtopographic variation(many hummocks,puddles,etc.) ' a outlet channels,and/or site is managed for water storage. During the January-May period,30 days of stable water levels are required for some aquatic amphibian eggs to mature,and during this time fluctuations of greater than 2 inches are lethal(Richter 1997). 'Vegetation located north of pools is less likely to block sunlight important to developing aquatic amphibians(Richter 1997). ' Your Judgments: Q It�_ Function Capacity score= , or circle one of the following: 1.0 .8 .6 .4 .2 0 Highest Lowest 1 1 ' 92 ' Function Capacity (Judgmental Assessment of): Breeding Waterbird Sup ort ' Highest Functioning Suggested Minimal Functioning Score: _The site contains many acres of permanent _Surface water is present for only a few weeks ' or nearly permanent surface water,or a large during April-June,OR permanent wetland(excluding streams)is _Nearly all of the water remains deeper than 6 located nearby `L? ft during May-September ' AND AND _Water depths are predominantly shallow(2 No permanent wetlands are located nearby. to 24 inches)in A ril-A st* ' —Most of the shoreline is not steep Most of the shoreline is steep Larger pools of water are bordered by a _Larger pools,if present,are bordered—by only wide,dense band of tall herbs and/or shrubs in ,LAa narrow band of sparse vegetation ' April-August. — About equal proportions of water and Vegetation and pools(if any)are in 2 separate vegetation are present,and are well-interspersed -Z areas or zones,not interspersed during the A nl—August period _Water levels do not abruptly rise a foot or _Water levels are prone to quickly rise at least more during Aril-June I foot during Aril-June _A large variety of herbs is present;the site _Vegetation cover is mostly comprised of one ' is actively managed to control the spread of or a few non-native or highly invasive native non-native or invasive species species _Land cover in surrounding buffer zones is _Land cover in surrounding buffer zones mainly a mix of natural grassland,woodland, largely contains impervious surface,bare ground, and water lawns,and row crops. Busy roads are distant from the site Bu roads border the site Water quality is excellent Water is heavily contaminated w7in Substrates have never been recontoured or —Substrates have recently been re otherwise subjected to compaction,excavation, otherwise subjected to compaction,e or leveling. leveling (unless such activities wereconnection with restoring a site to its ' condition) _Surrounding landscape contains large _ Surrounding landscape contains no wetlands acreage of wetlands,including some with a (P or ponds ' different water regime than the assessed site. Nest boxes,nest platforms,and other No nest boxes,nest platforms,or other artificial structures intended to assist waterbird artificial structures intended to assist waterbird nesting are extensive and are regularly nesting are present,or they aren't well- maintained. maintained. l _Part of the site is visited infrequently in Z _None of the site is visited frequently by April-June by humans on foot humans on foot durin Aril-June ' * Areas likely to retain water well into the waterbird breeding season may have many of these characteristics: prevalence of wetland plants(FAC or wetter,and especially OBL) intensive mottling&gleying of soils throughout most of the seasonally-inundated zone. _site is located in flatland terrain(not on slopes) ' _extensive microtopographic variation(many hummocks,puddles,etc.) absence of outlet channels,and/or site is managed for water storage. T / Your Judgments: 1 I� Function Capacity score= 0 3 , or circle one of the following: 1 ` 1.0 .8 .6 .4 ,2 0 Highest Lowest 1 ' 1 93 1 1 Function Capacity (Judgmental Assessment o g f): Wintering & MigratolryyWaterbird Support ' Highest Functioning Suggested Minimal Functioning Score: _The site contains extensive surface water _The site contains very little surface water during all or most of the fall-winter-spring ,Z during all or most of the fall-winter-spring period eriod _Water depths in most of the site during If forested,water depths during the fall- most of the fall-winter-spring period are winter-spring period are always shallower than 24 shallow(<24 inches) inches in all of the site(shallower depths are permissible then in unforested wetlands). A large portion of the site is inundated ` .Z _ Of the water that is present,nearly all is onlyseasonallyresent ear-round. _The acreage of various depth categories is `1, _ A single water depth category predominates. about equal during annual inundation —N icrotopographic variation(hummocks, _The substrate is very flat,essentially puddles,etc.)is extensive prohibJfiug the formation of puddles. _None of the site is visited frequently by _ ater's heavily contaminated with pollutants ' humans on foot during September-April. A large variety of herbs is present. The site _Vegetation cover(except in fanned wetlands) is actively managed to control the spread of is mostly comprised of one or a few non-native or non-native or invasive species highly invasive nativespecies _Water quality is excellent _Virtually all of the site is visited frequently by humans on foot duringApril-June _Substrates have never been recontoured or _Substrates have recently been recontoured or ' otherwise subjected to compaction,excavation, otherwise subjected to compaction,excavation,or or leveling. leveling (unless such activities were done in connection with restoring a site to its historical condition) Land cover in surrounding buffer zones is _Land cover in surrounding buffer zones mainly a mix of natural grassland,woodland, largely contains impervious surface,bare ground, a ricultural lands,and water lawns,and row crops. Surrounding landscape contains large _ Surrounding landscape contains no wetlands, acreage of hydric soil,wetlands,and water, ponds,or hydric soil. including some with a different water regime r an the assessed site. ' Your Judgments: V Function Capacity score= or circle one of the following: ' 1.0 .8 .6 .4 .2 0 Hi est Lowest ' 94 ' Function Capacity (Judgmental Assessment of): ' songbird Habitat Support (� Highest Functioning Suggested Minimal Functioning N \ — Score: Some part of the site contains surface water _Surface water is never present at any time ' dorm all(or near) all)of the ear. Z of the ear. The site contains a large acreage of closed- Acreage of these is very small. canopy forest,native shrubland,wet prairie,and/or ern ent wetland. If the site is mostly native shrubland and/or _If the site is mostly shrubland and/or forest, forest,then(a)large-diameter trees are numerous, then(a)trees are very small,(b)snags are (b)snags of various sizes are abundant,(c)under- absent,(c)under-canopy shrub cover is lacking, ' canopy shrub cover is extensive,and(d)a large �Q and(d)the variety of trees,shrubs,and vines is variety of trees,shrubs and vines is present. small,and comprised almost entirely of non- native ies. ' [emergent If the site is mostly wet prairie and/or If the site is mostly prairie and/or emergent wetland,then(a)a large variety of herbs wetland,then(a)the variety of herbs is small, present,(b)the site is actively managed to (b)the site is not actively managed to control ntrol the spread of non-native or invasive herbthe spread ofnon-native or invasive herb ecies,(c)trees and shrubs,if present,are species,(c)trees and shrubs,if present,are concentrated in one or a few parts of the site. scattered widely throughout the site. _Land cover in surrounding buffer zones is _ _Land cover in surrounding buffer zones predominantly a mix of natural grassland,native largely contains impervious surface,bare ' shrubland,woodland,wetlands,and water ground,lawns,and row crops. _None of the site is visited frequently by y _Every part of the site is visited frequently humans on foot ` "I !?y humans on foot ' Busyroads are distant from the site Busy roads adjoin the site. Your Judgments: Function Ca aci score= 19 ?2 or circle one of the followin : 1.0 .8 .6 .4 .2 0 Hi eSt Lowest ' Function Capacity (Judgmental Assessment of): Support of Characteristic Ve etation Highest Functioning Suggested Minimal Functioning' Score: ✓Trees,shrubs,and herbs are all present,and _Only one plant form(tree,shrub,herb)is ' are well erred`h out the site resent If trees are present,many are very old and _If trees are present,all are young large,with abundant evidence of regeneration _If shrubs are present,all of the significantly —If shrubs are present,they are comprised of ' resent shrubspecies are natives just one species,and it is non-native _If herbs are present,all of the significantly ` _If herbs are present,they are comprised of resent herbspecies are natives just one species,and it is non-native ' —Microtopographic relief is great ,The substrate is very flat,essentially (hummocks,puddles,etc.) rohibitin the formation of puddles. _Springtime surface water levels drop very ,Springtime water levels fluctuate or drop slowly(<2 vertical inches per 30 days, rapidly(>2 inches per 10 days,average) average) 95 ' Highest Functioning Suggested Minimal Functioning Score: _None of the site is visited frequently by _Every part of the site is visited frequently by ' humans on foot humans on foot Busy roads are distant from the site Busy roads adjoin the site. _Land cover in the contributing watershed is _Land cover in the contributing water predominantly"natural" `�j largely contains impervio�is surface, are ground, ' lawns,and row crops. _Land cover in surrounding buffer zones is _Land cover in surrounding buffer largely predominantly a mix of natural grassland, contains impervious surface,bare ground,lawns, native shrubland,woodland,wetlands,and , and row crops. water Your Judgments: Function Ca achy score= �, or circ one of the followin Now, summarize your function capacity assessments by recording them on the Assessment ' Summary Form(p. 59). Be sure to indicate that you used the Judgmental Method. 96 i Appendix G.• Wetlands bating Field Data Foan 1 1 i 1 1 1 1 1 1 1 1 1 1 Wetland Investigation&Delineation Report: Duva lAvenue NE Widening Project Page 104 The City of Renton September 23,2004 1 Wetlands Rating Field Data Form Background Information: Name of Rater: 1,,W Affiliation:W)DOS�` '/�" Date: '�' v r Name of wetland(if known): P l7'r Government Jurisdiction of wetland: Location: 1/4 Section: of 1/4 S: Section: 3 Township Z_1WRange: uC' Sources of Information: (Check all sources that apply) pp Y) Site visit: VIUSGS Topo Map: " NWI map: ---Aerial Photo: oils survey: Other: Describe: , r When The Field Data form is complete enter Category here: JNV n / V i Q.1. High Quality Natural Wetiand Circle Answers Answer this question if you have adequate information or experience to do so. If not find someone with the expertise to answer the questions. Then,if the answer to questions la, lb and lc are all NO, contact the Natural Heritage program of DNR. la.Human caused disturbances. Is there significant evidence of human-caused changes to topography or hydrology of the wetland as indicated by any of the following conditions? Consider only changes that may have taken place in the last 5 decades. The impacts of changes done earlier have probably been stabilized and the wetland ecosystem will be close to reaching some new equilibrium that may represent a high quality wetland. Yes: go to Q.2 ' la.l Upstream watershed> 12%impervious. Yes go to Q.2 lag. Wetland is ditched and water flow is not obstructed. Yes: go to Q.2 la3. Wetland has been graded, filled, logged. Yes: go to Q.2 1a4. Water in wetland is controlled by dikes,weirs,etc. Yes: go to Q.2 lay. Wetland is grazed. Yes: go to Q.2 1a6. Other indicators of disturbance(list below) No: go to lb. A'i Id Y. I s ✓' ' 25 ' lb Are there populations of non-native plants which are currently present,cover YES: go to Q.2 more than 10%of the wetland, and appear to be invading native populations? No: go to 1 c. Briefly describe any non-native plant populations and ' Information source(s): lc. Is there evidence of human-caused disturbances which have visibly degraded water quality. Evidence of the degradation of water quality include: ' direct(untreated)runoff from roads or parking lots;presence,or historic YES: go to Q.2 evidence,of waste dumps; oily sheens;the smell of organic chemicals; or NO: Possible Cat. I livestock use. Briefly describe: Contact DNR Q.2. Irreplaceable Ecological Functions: ' Does the wetland: to all: go to Q.3) have at least 1/4 acre of organic soils deeper than 16 inches YES go to 2a ' and the wetland is relatively undisturbed; OR [If the answer is NO because the wetland is disturbed briefly describe: Indicators of disturbance may include: ' AVVetland has been grid, filled, logged; -Organic soils on the surface are dried-out for more than half of the year; f"Wetland receives direct stormwater runoff from urban or ' agricultural areas.]; ' OR have a forested class greater than 1 acre; YES: Go to 2b OR ' have characteristics of an estuarine system; Yes: Go to 2c OR have eel grass floating or non-floating kelp beds? Yes: Go to 2d ' 2a.Bogs and Fens Are any of the three following conditions met for the area of organic soil? ' 2a.1. Are Sphagnum. mosses a common ground cover(>30%)and the cover of invasive species(see Table 3)is less than 10%? Is the area of sphagnum mosses and deep organic soils> 1/2 acre? YES: Category I ' Is the area of sphagnum mosses and deep organic soils '/4-1/2 acre? YES: Category II NO: Go to 2a.3 ' 2a.2. Is there an area of organic soil which has an emergent class with at least one species from Table 2, and cover of invasive species is< 10%(see Table 3)? ' Is the area of herbaceous plants and deep organic soils> 1/2 acre? YES: Category I Is the area of herbaceous plants and deep organic soils 1/4-1/2acre? YES: Category II NO: Go to 2a.3 ' 26 2a.3. Is the vegetation a mixture of only herbaceous plants and Sphagnum ' mosses with no scrub/shrub or forested classes? Is the area of herbaceous plants, Sphagnum, and deep organic soils> 1/2 acre? YES: Category I ' Is the area of herbaceous plants, Sphagnum,and deep organic soils '1/4-1/2 acre? YES: Category 11 ' NO: Go to Q.3. Q.2b.Mature forested wetland. 2b.1.Does 50%of the cover of upper forest canopy consist of evergreen YES: Category I ' trees older than 80 years or deciduous trees older than 50 years? NO: Go to 2b.2 Note:The size of trees is often not a measure of age,and size cannot be used as a surrogate for age(see guidance). ' 2b.2. Does 50%of the cover of forest canopy consist of evergreen trees older YES: Go to 2b.3 than 50 years,AND is the structural diversity of the forest high as NO: Go to Q.3 ' characterized by an additional layer of trees 20'-49'tall, shrubs 6'-20', tall, and a herbaceous groundcover? ' 2b.3. Does<25%of the areal cover in the herbaceous/groundcover or YES: Category I the shrub layer consist of invasive/exotic plant species from the list on p. 19? NO: Go to Q.3 Q.2c. Estuarine wetlands. 2c.1. Is the wetland listed as National Wildlife Refuge,National Park, YES: Category I National Estuary Reserve,Natural Area Preserve, State Park,or NO: Go to 2c.2 Educational,Environmental or Scientific Reserves designated under tWAC 332-30-151? 2c.2. Is the wetland>5 acres; ......................................................... YES: Category I ' Note:If an area contains patches of salt tolerant vegetation that are 1) less than 600 feet apart and that are separated by mudflats that go dry on a Mean Low Tide,or 2)separated by tidal channels that are less than 100 feet wide; ' all the vegetated areas are to be considered together in calculating the wetland area. or is the wetland 1-5 acres; ......................................................... YES: Go to 2c.3 or is the wetland< 1 acre? .......................................................... YES: Go to 2c.4 1 ' 27 2c.3. Does the wetland meet at least 3 of the following 4 criteria: ....... YES: Category I ' -minimum existing evidence of human related disturbance such as NO Category II diking, ditching,filling,cultivation,grazing or the presence of non- native plant species(see guidance for definition); -surface water connection with tidal saltwater or tidal freshwater; ' -at least 75%of the wetland has a 100 buffer of ungrazed pasture, open water,shrub or forest; ' -has at least 3 of the following features: low marsh;high marsh;tidal channels; lagoon(s);woody debris; or contiguous freshwater wetland. ' 2c.4. Does the wetland meet all of the four criteria under 2c3?(above)? YES: Category II NO: Category III Q.2d.Eel Grass and Kelp Beds. ' 2d.1. Are eelgrass beds present? .................................................. YES: Category I NO: go to 2d.2 2d.2. Are their floating or non-floating kelp bed(s)present with greater than YES: Category I 50%macro algal cover in the month of August or September?............... NO: Category II Q.3. Category IV wetlands. ' 3a. Is the wetland: less than 1 acre and, 0.0&1 _tom h of icall ' olated and, l�// comprised of one vegetated class that is dominated(>80%lar cover) §,Ctategory IV ' by one species from Table 3 (page 19)or able 4 age 20)� � ti s go o 3b 3b. Is the wetland: less than two acres r ' and,hydrologically isolated, with one vegetated class,and>90%of areal cover in any combination of S: Category IV species from Table 3 (page 19) (ego to 3c 3c. Is the wetland excavated from upland and a pond smaller than 1 acre YES: Category IV without a surface water connection to streams,lakes,rivers, or other go to Q.4 wetland,and has<0.1 acre of vegetation. t 28 ' Q.4. Significant habitat value. Answer all questions and enter data requested. Circle scores that qualify 4a. Total wetland area Estimate area,select from choices in the near-right column, and score in the acres op ints ' far column: >200 6 40-200 5 Enter acreage of wetland heren'D�cres,and source 10-40 4 ' S-103 1-5 2 0.1-1 1 <0.10 4b.Wetland classes: Circle the wetland classes below that qualify: Open Water: if the area of open water is> 1/4 acre Aquatic Beds: if the area of aquatic beds> 1/4 acre, Emergent: if the area of emergent class is> 1/4 acre, #of clas s I............ 0 ' Scrub-Shrub: if the area of scrub-shrub class is> 1/4 acre, fJ 2............ 3 3............ 6 Forested: if area of forested class is> 1/4 acre, � 4............ g Add the number of wetland classes,above,that qualify,and then Score according to the columns at right. e.g. If there are 4 classes(aquatic beds, open water,emergent& ' Scrub-shrub),you would circle 8 points in the far right column. 4c.Plant species diversity. For,each wetland class(at rii ht)that qualifies in Class #species in class Points ' 4b above,count the number of different plant species Aquatic 1 0 you can find that cover more than 5%of the ground. 2 1 You do not have to name them. 3 2 >3 3 Score in column at far right: e.g. If a wetland has an aquatic bed class with 3 species,an Emergent 1 0 emergent class with 4 species and a scrub-shrub 2-3 1 class with 2 species you would circle 2,2, and 1 in the 4-5 2 far column. >5 3 Note: Any plant species with a cover of>5% qualifies for points within a class,even those Scrub-Scrub 1 0 that are not of that class. 2 1 3-4 2 ' >4 3 Fore ted 1 0 2 1 3-4 2 .>4 3 1 29 4d. Structural diversity. ' If the wetland has a forested class,add 1 point if each of the following Classes is present within the forested class and is larger than 1/4 acre: -trees>50'tall............................ YES - 1 -trees 20':49'tall........................ YES- 1 -shrubs.. YES— 1 -herbaceous ground cover................ YES— 1 ' Also add 1 point if there is any"open water" or"aquatic bed" class Immediately next to the forested area(i.e. there is no scrub/shrub or emergent vegetation between them). YES— I [[ 4e.Decide from the diagrams below whether interspersion between High—5 wetland classes is high,moderate,low or none?If you think the Moderate—3 amount of interspersion falls in between the diagrams score accordingly (i.e.a moderately high amount of interspersion would score a 4, None—0 ' while a moderately low amount would score a 2) rt t 1(lt�r' law moderate t odetatc high 4f Habitat features. ' Answer questions below,circle features that apply, and score to right: Is there evidence that the open or standing water was caused by beavers YES=2 Is a heron rookery located within 300'? YES= 1 Are raptor nests located within 300'? YES= 1 Are there at least 3 standing dead trees(snags)per acre greater than 10"in diameter at"breast height" (DBH)? YES= 1 ' Are there at least 3 downed logs per acre with a diameter >6"for at least 10'in length? YES= 1 Are there areas(vegetated or unvegetated)within the wetland that are ' ponded for at least 4 months out of the year, and the wetland has not qualified as having an open water class in Question 4b. ? YES=2 ' 30 4g.Connection to streams.(Score one answer only.) ' 4g.1.Does the wetland provide habitat for fish at any time of the year AND YES=6 does it have a perennial surface water connection to a fish-bearing stream. ' 4g.2 Does the wetland provide fish habitat seasonally AND does it have _ ) YES=4 a seasonal surface water connection to a fish-bearing stream. {" 4g.3 Does the wetland function to export organic matter through a surface YES=4 ' water connection at all times of the year to a perennial stream. 4g.4 Does the wetland function to export organic matter through a surface YES=2 ' water connection to a stream on a seasonal basis? 4h.Buffers. Score the existing buffers on a scale of 1-5 based on the following four descriptions. ' If the condition of the buffers do not exactly match the description,score either a point higher or lower depending on whether the buffers are less or more degraded. Forest, scrub,native grassland or open water buffers are present for ' more than 100'around 95%of the circumference. Score=5 Forest, scrub,native grassland,or open water buffers wider than 100' ' for more than 1/2 of the wetland circumference,or a forest, scrub, grasslands,or open water buffers for more than 50'around 95 %of the circumference. Score=3 ' Forest,scrub,native grassland,or open water buffers wider than 100' for more than 1/4 of the wetland circumference, or a forest, scrub,native w grassland,or open water buffers wider than 50'for more than 1/2 of the 1 ' wetland circumference. Score=2 No roads,buildings or paved areas within 100'of the wetland for more than 95%of the wetland circumference. ( Score=2 No roads,buildings or paved areas within 25'of the wetland for more r than 95%of the circumference, or ' No roads buildings or paved areas within 50'of the wetland for more than 1/2 of the wetland circumference. Score= 1 ' Paved areas, industrial areas or residential construction(with less than 50' between houses)are less than 25 feet from the wetland for more than 95 % of the circumference of the wetland. Score=0 31 4i.Connection to other habitat areas: ' Select the description,which best matches the site being evaluated. -Is the wetland connected to,or part of, a riparian corridor at least 100'wide connecting two or more wetlands;or,is there an upland connection present>100' wide with good forest or shrub cover(>25%cover)connecting it with a 0 Significant Habitat Area? YES=5 ' -Is the wetland connected to any other Habitat Area with either 1)a forested/shrub corridor< 100'wide,or 2)a corridor that is> 100'wide,but has a low vegetative J cover less than 6 feet in height? ` es=3 -Is the wetland connected to,or a part of,a riparian corridor between 50- 100'wide with scrub/shrub or forest cover connection to other wetlands? :7ye7—D ' -Is the wetland connected to any other Habitat Area with narrow corridor(<100') of low vegetation(<6'in height)? Yes= 1 Is the wetland and its buffer(if the buffer is less than 50'wide)completely isolated by development(urban,residential with a density greater than 2/acre, or industrial)? Yes=0 ' Now add the scores circled (for Q.Sa—Q.Si above)to get a total. Is the Total greater than or equal to 22 points? . c) / O=Category III ' 32 Wetlands Rating Field Data Form Background Information: Name of Rater: Affiliation:W/A Name of wetland(if known): /[,/O Government Jurisdiction of wetland: Location: 1/4 Section: of 1/4 S: Section:3—Township�F3NRange:s� Sources of Information: (Check all sources that apply) Site visit: ' USGS Topo Map: v NWI map: ✓ Aerial Photo: __ Soils survey: i Other: Describe: A 1 When The Field Data form is complete enter Category here 46n'o 0, t Q.1. High Quality Natural Wetland Circle Answers v Answer this question if you have adequate information or experience to do so. If not find someone with the expertise to answer the questions. Then,if the answer to questions la, lb and lc are all NO, contact the Natural Heritage program of DNR. Ia.Human caused disturbances. Is there significant evidence of human-caused changes to topography or hydrology of the wetland as indicated by any of the following conditions? Consider only changes that may have taken place in the last 5 decades. The impacts of changes done earlier have probably been stabilized and the wetland ecosystem will be close to reaching some new equilibrium that may represent a high quality wetland. Ye . o to Q.2 ' la.1 Upstream watershed> 12%impervious. Yes: go to Q.2 1a2. Wetland is ditched and water flow is not obstructed. Yes: go to Q.2 la3. Wetland has been graded, filled, logged. Yes: go to Q.2 1a4. Water in wetland is controlled by dikes, weirs, etc. Yes: go to Q.2 1a5. Wetland is grazed. Yes: go to Q.2 la6. Other indicators of disturbance(list below) No: go to lb. ' 25 i ' lb Are there populations of non-native plants which are currently present,cover YES: go to Q.2 more than 10%of the wetland, and appear to be invading native populations? No: go to 1 c. Briefly describe any non-native plant populations and ' Information source(s): lc. Is there evidence of human-caused disturbances which have visibly degraded water quality. Evidence of the degradation of water quality include: ' direct(untreated)runoff from roads or parking lots;presence,or historic YES: go to Q.2 evidence,of waste dumps; oily sheens;the smell of organic chemicals;or NO: Possible Cat. I livestock use. Briefly describe: Contact DNR Q.2. Irreplaceable Ecological Functions: ' Does the wetland: &o all: go to Q.3) have at least 1/4 acre of organic soils deeper than 16 inches YES go to 2a and the wetland is relatively undisturbed;OR ' [If the answer is NO becauot the wetland is disturbed briefly describe: Indicators of disturbance may include: ' �-Wetland has been graded, filled,logged; -Organic soils on the surface are dried-out for more than half of the year; t - land receives direct stormwater runoff from urban or agricultural areas.]; ' OR have a forested class greater than 1 acre; YES: Go to 2b OR have characteristics of an estuarine system; Yes: Go to 2c OR have eel grass floating or non-floating kelp beds? Yes: Go to 2d ' 2a.Bogs and Fens Are any of the three following conditions met for the area of organic soil? 2a.1. Are Sphagnum.mosses a common ground cover(>30%)and the cover of invasive species(see Table 3)is less than 10%? Is the area of sphagnum mosses and deep organic soils> 1/2 acre? YES: Category I ' Is the area of sphagnum mosses and deep organic soils ''/a-1/2 acre? YES: Category II NO: Go to 2a.3 ' 2a.2. Is there an area of organic soil which has an emergent class with at least one species from Table 2, and cover of invasive species is< 10%(see Table 3)? ' Is the area of herbaceous plants and deep organic soils> 1/2 acre? YES: Category I Is the area of herbaceous plants and deep organic soils 1/4-1/2acre? YES: Category I1 NO: Go to 2a.3 1 ' 26 r r 2a.3. Is the vegetation a mixture of only herbaceous plants and Sphagnum r mosses with no scrub/shrub or forested classes? Is the area of herbaceous plants, Sphagnum, and deep organic soils> 1/2 acre? YES: Category I r Is the area of herbaceous plants, Sphagnum, and deep organic soils 1/4-1/2 acre? YES: Category II r NO: Go to Q.3. Q.2b. Mature forested wetland. 2b.1. Does 50%of the cover of upper forest canopy consist of evergreen YES: Category I r trees older than 80 years or deciduous trees older than 50 years? NO: Go to 2b.2 Note:The size of trees is often not a measure of age,and size cannot be used as a surrogate for age(see guidance). r2b.2. Does 50%of the cover of forest canopy consist of evergreen trees older YES: Go to 2b.3 than 50 years,AND is the structural diversity of the forest high as NO: Go to Q.3 r characterized by an additional layer of trees 20'-49'tall,shrubs 6'-20', tall,and a herbaceous groundcover? r 2b.3. Does<25%of the areal cover in the herbaceous/groundcover or YES: Category I the shrub layer consist of invasive/exotic plant species from the list on p. 19? NO: Go to Q.3 Q.2c.Estuarine wetlands. r 2c.1. Is the wetland listed as National Wildlife Refuge,National Park, YES: Category I National Estuary Reserve,Natural Area Preserve, State Park,or NO: Go to 2c.2 Educational,Environmental or Scientific Reserves designated under rWAC 332-30-151? 2c.2. Is the wetland>5 acres; ......................................................... YES: Category I r Note:If an area contains patches of salt tolerant vegetation that are 1)less than 600 feet apart and that are separated by mudflats that go dry on a Mean Low Tide,or 2)separated by tidal channels that are less than 100 feet wide; r all the vegetated areas are to be considered together in calculating the wetland area. ror is the wetland 1-5 acres; ......................................................... YES: Go to 2c.3 or is the wetland< 1 acre? .......................................................... YES: Go to 2c.4 r r r r 27 r 2c.3. Does the wetland meet at least 3 of the following 4 criteria: ....... YES: Category I ' -minimum existing evidence of human related disturbance such as NO Category II diking, ditching, filling,cultivation,grazing or the presence of non- native plant species(see guidance for definition); -surface water connection with tidal saltwater or tidal freshwater; ' -at least 75%of the wetland has a 100 buffer of ungrazed pasture, open water, shrub or forest; ' -has at least 3 of the following features: low marsh;high marsh; tidal channels; lagoon(s);woody debris;or contiguous freshwater wetland. 2c.4. Does the wetland meet all of the four criteria under 2c3?(above)? YES: Category Il NO: Category III Q.2d.Eel Grass and Kelp Beds. ' 2d.1. Are eelgrass beds present? .................................................. YES: Category I NO: go to d 2d.2. Are their floating or non-floating kelp bed(s)present with greater than YES: Category I 50%macro algal cover in the month of August or September?............... NO: Category II Q.3. Category IV wetlands. ' 3a. Is the wetland: less than 1 acre and, hydrologically isolated and, comprised of one vegetated class that is dominated(>80%areal cover) YES: Category IV ' by one species from Table 3 (page 19)or Table 4(page 20) o to 3b 3b. Is the wetland: less than two acres ' and,hydrologically isolated., with one vegetated class,and>90%of areal cover in any combination of S: Category IV species from Table 3 (page 19) go to 3c 1�5. 3c. Is the wetland excavated from upland and a pond smaller than 1 acre YES: Category IV without a surface water connection to streams,lakes,rivers,or other NO. go to Q.4 wetland,and has<0.1 acre of vegetation. ' 28 Q.4. Significant habitat value. ' Answer all questions and enter data requested. Circle scores that qualify 4a. Total wetland area Estimate area, select from choices in the near-right column, and score in the acres pQints far column: S7 >200 6 l? 40-200 5 Enter acreage of wetland here:. 0 acres, and source: k4zTZ� 10-40 4 ' S-103 1-5 2 0.1-1 1 , ' 4b.Wetland classes: Circle the wetland classes below that qualify: <0.10 Open Water: if the area of open water is> 1%4 acre �v Aquatic Beds: if the area of aquatic beds> 1/4 acre, ' Emergent: if the area of emergent class is> e, /� #of classes Points ........... 0 Scrub-Shrub: if the area of scrub-shrub class is acr 2............ 3 ' 3............ 6 Forested: if area of forested class is> acre (-112 4............ 8 5............ 10 Add the number of wetland classes,above,that qualify,and then Score according to the columns at right. e.g. If there are 4 classes(aquatic beds,open water,emergent& Q ' Scrub-shrub),you would circle 8 points in the far right column. 4c.Plant species diversity. For each wetland class(at right)that qualifies in Class #species in class Po' s 4b above,count the number of different plant species Aquatic 1 147 you can ind that cover more than 5%of the ground. 2 1 You do not have to name them. 3 2 >3 3 ' Score in column at far right: e.g. If a wetland has an aquatic bed class with 3 species,an Emergent 1 0 emergent class with 4 species and a scrub-shrub 2-3 1 ' class with 2 species you would circle 2,2,and 1 in the - far column. > Note: Any plant species with a cover of>5% ' qualifies for points within a class,even those Scrub-Scrub 1 0 that are not of that class. > Forested 1 Ot >4 ' 29 4d.Structural diversity. ' If the wetland has a forested class,add 1 point if each of the following Classes is present within the forested class and is larger than 1/4 acre: -trees>50'tall............................ YES- 1 ' -trees 20':49'tall........................ YES - 1 -shrubs.. YES— 1 -herbaceous ground cover................ YES— 1 ' Also add 1 point if there is any"open water"or"aquatic bed" class Immediately next to the forested area(i.e. there is no scrub/shrub or emergent vegetation between them). YES— 1 " 4e.Decide from the diagrams below whether interspersion between High—5 wetland classes is high,moderate,low or none?If you think the Moderate—3 amount of interspersion falls in between the diagrams score accordingly Low— (i.e. a moderately high amount of interspersion would score a 4, None[—U') ' while a moderately low amount would score a 2) r r� Ioww4 low �6Xa /aMIL+�,,may II1("t gilt mocicrz c high 4f Habitat features. ' Answer questions below,circle features that apply, and score to right: Is there evidence that the open or standing water was caused by beavers YES=2 Is a heron rookery located within 300 YES= 1 ' Are raptor nests located within 300'? YES= 1 Are there at least 3 standing dead trees(snags)per acre greater than 10"in diameter at"breast height" (DBH)? YES= 1 ' Are there at least 3 downed logs per acre with a diameter >6" for at least 10'in length? YES= 1 Are there areas (vegetated or unvegetated)within the wetland that are ' ponded for at least 4 months out of the year, and the wetland has not qualified as having an open water class in Question 4b. ? FS=2 ' 30 4g.Connection to streams. (Score one answer only.) ' 4g.1. Does the wetland provide habitat for fish at any time of the year AND YES=6 does it have a perennial surface water connection to a fish-bearing stream. y1J ' 4g.2 Does the wetland provide fish habitat seasonally AND does it have YES=4 a seasonal surface water connection to a fish-bearing stream. 4g.3 Does the wetland function to export organic matter through a surface Iv" YES=4 water connection at all times of the year to a perennial stream. 4g.4 Does the wetland function to export organic matter through a surface �/� YES=2 er water connection to a stream on a seasonal basis? 4h.Buffers. Score the existing buffers on a scale of 1-5 based on the following four descriptions. ' If the condition of the buffers do not exactly match the description,score either a point higher or lower depending on whether the buffers are less or more degraded. Forest,scrub,native grassland or open water buffers are present for more than 100'around 95%of the circumference. N Score=5 Forest, scrub,native grassland,or open water buffers wider than 100' ' for more than 1/2 of the wetland circumference,or a forest,scrub, grasslands,or open water buffers for more than 50'around 95 %of the/N 0 circumference. Score=3 ' Forest, scrub,native grassland,or open water buffers wider than 100' for more than 1/4 of the wetland circumference,or a forest,scrub,native grassland, or open water buffers wider than 50'for more than 1/2 of the N p . ' wetland circumference. Score=2 No roads,buildings or paved areas within 100'of the wetland for more than ' 95%of the wetland circumference. ICJ 0 . Score=2 No roads,buildings or paved areas within 25'of the wetland for more than 95%of the circumference, or . No roads buildings or paved areas within 50'of the wetland for more than _ 1/2 of the wetland circumference. Score= 1 ' Paved areas, industrial areas or residential construction(with less than 50' between houses)are less than 25 feet from the wetland for more than 95 % of the circumference of the wetland. �J D Score=0 31 1 1 4i.Connection to other habitat areas: 1 Select the description,which best matches the site being evaluated. -Is the wetland connected to, or part of,a riparian corridor at least 100'wide ' connecting two or more wetlands; or,is there an upland connection present>100' wide with good forest or shrub cover(>25%cover)connecting it with a N -0 . Significant Habitat Area? YES—5 1 -Is the wetland connected to any other Habitat Area with either 1)a forested/shrub corridor< 100'wide,or 2)a corridor that is> 100'wide,but has a low vegetative cover less than 6 feet in height? y ei S es= 1 -Is the wetland connected to,or a part of, a riparian corridor between 50- 100'wide with scrub/shrub or forest cover connection to other wetlands? yys , Yes=3 1 -Is the wetland connected to any other Habitat Area with narrow corridor(<100') of low vegetation(<6'in height)? Yes= 1 1 -Is the wetland and its buffer(if the buffer is less than 50'wide)completely isolated / by development(urban,residential with a density greater than 2/acre, or industrial)? es=0 Sc7 1 Now add the scores circled (for Q.5a—Q.51 above)to get a total. Is the Total greater than or equal to 22 points? YES=Category II <!�Category III 1 4WV G 1 i 1 1 1 1 1 32 i i 1 Wetlands Rating Field Data Form 1 Background Information: Name of Rater: L--L(, / Affiliation:Wipene7 AKS dC'Date: 9' q Name of wetland(if known): N 1 Government Jurisdiction of wetland: A)& Location: 1/4 Section: of 1/4 S: Section:.3 TownshiN Range: s� 1 Sources of In rmation: (Check all sources that a I / � Y) Site visit: USGS Top Map: V NWI map: Aerial Photo: Soils survey: 1 Other: Describe: When The Field Data form is complete enter Category here: 1 III Q.1. High Quality Natural Wetland Circle Answers 1 Answer this question if you have adequate information or experience to do so. If not find someone with the expertise to answer the questions. Then,if the answer to questions la, lb and lc are all NO,contact the Natural Heritage program of DNR. 1 la.Human caused disturbances. 1 Is there significant evidence of human-caused changes to topography or hydrology of the wetland as indicated by any of the following conditions? Consider only changes that may have taken place in the last 5 decades. The ' impacts of changes done earlier have probably been stabilized and the wetland ecosystem will be close to reaching some new equilibrium that may represent a high quality wetland. 1 la.l Upstream watershed> 12%impervious.''`y2S Yes: go to Q.2 go to Q.2 1a2. Wetland is ditched and water flow is not obstructed. Yes: go to Q.2 1a3. Wetland has been graded, filled, logged. Yes: go to Q.2 1 la4. Water in wetland is controlled by dikes,weirs, etc. Yes: go to Q.2 la5. Wetland is grazed. Yes: go to Q.2 1a6. Other indicators of disturbance (list below) No: go to lb. 1 s man/ "VtLwy n4--L !J 7-0 6?41W11U' qyC 1 25 1 ' lb Are there populations of non-native plants which are currently present,cover YES: go to Q.2 more than 10%of the wetland,and appear to be invading native populations? No: go to 1 c. Briefly describe any non-native plant populations and ' Information source(s): lc. Is there evidence of human-caused disturbances which have visibly degraded water quality. Evidence of the degradation of water quality include: direct(untreated)runoff from roads or parking lots;presence,or historic YES: go to Q.2 evidence,of waste dumps; oily sheens;the smell of organic chemicals;or NO: Possible Cat. I livestock use. Briefly describe: Contact DNR ' Q.2. Irreplaceable Ecological Functions: Does the wetland: Qo all: go to Q.3) have at least 1/4 acre of organic soils deeper than 16 incheo YES go to 2a and the wetland is relatively undisturbed; OR , [If the answer is NO because the wetland is disturbed briefly describe: Indicates of disturbance may include: t "Wetland has been grade ,filled, logged; S -Organic soils on the surface are dried-out for more than half f the year; etland receives direct stormwater runoff from urban or ' agricultural areas.]; YO 5. OR have a forested class greater than 1 acre; YES: Go to 2b OR ' have characteristics of an estuarine system; Yes: Go to 2c OR have eel grass floating or non-floating kelp beds? Yes: Go to 2d ' 2a.Bogs and Fens Are any of the three following conditions met for the area of organic soil? ' 2a.1. Are Sphagnum. mosses a common ground cover(>30%)and the cover of invasive species(see Table 3)is less than 10%? Is the area of sphagnum mosses and deep organic soils> 1/2 acre? YES: Category I ' Is the area of sphagnum mosses and deep organic soils ''/a-1/2 acre? YES: Category II NO: Go to 2a.3 ' 2a.2. Is there an area of organic soil which has an emergent class with at least one species from Table 2, and cover of invasive species is< 10%(see Table 3)? ' Is the area of herbaceous plants and deep organic soils> 1/2 acre? YES: Category I Is the area of herbaceous plants and deep organic soils 1/4-1/2acre? YES: Category II NO: Go to 2a.3 26 2a.3. Is the vegetation a mixture of only herbaceous plants and Sphagnum ' mosses with no scrub/shrub or forested classes? Is the area of herbaceous plants, Sphagnum,and deep organic soils> 1/2 acre? YES: Category I Is the area of herbaceous plants, Sphagnum,and deep organic soils '/4-1/2acre? YES: Categoryll ' NO: Go to Q.3. Q.2b. Mature forested wetland. 2b.1. Does 50%of the cover of upper forest canopy consist of evergreen YES: Category I ' trees older than 80 years or deciduous trees older than 50 years? NO: Go to 2b.2 Note:The size of trees is often not a measure of age,and size cannot be used as a surrogate for age(see guidance). 2b.2. Does 50%of the cover of forest canopy consist of evergreen trees older YES: Go to 2b.3 than 50 years,AND is the structural diversity of the forest high as NO: Go to Q.3 ' characterized by an additional layer of trees 20'-49'tall, shrubs 6'-20', tall,and a herbaceous groundcover? ' 2b.3. Does<25%of the areal cover in the herbaceous/groundcover or YES: Category I the shrub layer consist of invasive/exotic plant species from the list on p. 19? NO: Go to Q.3 Q.2c.Estuarine wetlands. ' 2c.1. Is the wetland listed as National Wildlife Refuge,National Park, YES: Category I National Estuary Reserve,Natural Area Preserve, State Park,or NO: Go to 2c.2 Educational, Environmental or Scientific Reserves designated under ' WAC 332-30-151? 2c.2. Is the wetland>5 acres; ......................................................... YES: Category I ' Note: If an area contains patches of salt tolerant vegetation that are 1)less than 600 feet apart and that are separated by mudflats that go dry on a Mean Low Tide,or 2)separated by tidal channels that are less than 100 feet wide; ' all the vegetated areas are to be considered together in calculating the wetland area. ' or is the wetland 1-5 acres; ......................................................... YES: Go to 2c.3 or is the wetland< 1 acre? .......................................................... YES: Go to 2c.4 27 2c.3. Does the wetland meet at least 3 of the following 4 criteria: ....... YES: Category I ' -minimum existing evidence of human related disturbance such as NO Category II diking,ditching,filling,cultivation,grazing or the presence of non- native plant species(see guidance for definition); -surface water connection with tidal saltwater or tidal freshwater; -at least 75%of the wetland has a 100 buffer of ungrazed pasture, open water, shrub or forest; ' -has at least 3 of the following features: low marsh;high marsh; tidal channels; lagoon(s);woody debris; or contiguous freshwater wetland. ' 2c.4. Does the wetland meet all of the four criteria under 2c3?(above)? YES: Category II Q.2d.Eel Grass and Kelp Beds. NO: Category III ' 2d.1.Are eelgrass beds present? .................................................. YES: Category I NO: go to 2d.2 ' 2d.2. Are their floating or non-floating kelp bed(s)present with greater than YES: Category I 50%macro algal cover in the month of August or September?............... NO: Category II Q.3. Category IV wetlands. ' 3a. Is the wetland: less than 1 acre and, 0,02 hydrologically isolated and, comprised of one vegetated class that is dominated(>80%areal cover) Y S: Category IV by one species from Table 3 (page 19)or Table 4(page 20) tV- go to 3b 3b. Is the wetland: less than two acres ' and,hydrologically isolated, with one vegetated class,and>90%of areal cover in any combination of YES: Category IV species from Table 3 (page 19) 19 go to 3c ' 3c. Is the wetland excavated from upland and a pond smaller than 1 acre 'YPS: Category IV without a surface water connection to streams,lakes,rivers,or other go to Q.4 wetland,and has<0.1 acre of vegetation. 1 ' 28 0.4. Significant habitat value. ' Answer all questions and enter data requested. Circle scores that qualify 4a.Total wetland area Estimate area,select from choices in the near-right column,and score in the acres op ints ' far column: O�Qa- � >200 6 J� p 40-200 5 Enter acreage of wetland here: acres,and source: hi Lam^ 1040 4 e'�tfMpj 5-103 �✓�// r 1-5 2 r 0.1-1 1 4b.Wetland classes: Circle the wetland classes below that qualify: Open Water:if the area of open water is> 1/4 acre /✓-a Aquatic Beds: if the area of aquatic beds> 1/4 acre, N D ' Emergent: if the area of emergent class is> 1/4 acre, IYO #of classes Points 1............ 0 ' Scrub-Shrub: if the area of scrub-shrub class is> 1/4 acre, N0 2............ 3 3............ 6 Forested: if area of forested class is> 1/4 acre, �p 4............ 8 Add the number of wetland classes,above,that qualify,and then Score according to the columns at right. e.g. If there are 4 classes(aquatic beds,open water, emergent& 0- ' Scrub-shrub),you would circle 8 points in the far right column. 4c.Plant species diversity. For each wetland class(at right)that qualifies in Class #species in class Points ' 4b above,count the number of different plant species Aquatic 1 0 you can find that cover more than 5%of the ground. l 2 1 You do not have to name them. O �/ 3 2 >3 3 ' Score in column at far right: e.g. If a wetland has an aquatic bed class with 3 species,an Emergent 1 0 emergent class with 4 species and a scrub-shrub 2-3 1 ' class with 2 species you would circle 2,2,and 1 in the 4-5 2 far column. >5 3 Note: Any plant species with a cover of>5% qualifies for points within a class,even those Scrub-Scrub 1 0 that are not of that class. 2 1 3-4 2 >4 3 Forested 1 0 2 1 ' 3-4 2 >4 3 ' 29 4d.Structural diversity. ' If the wetland has a forested class,add 1 point if each of the followin Classes is present within the forested class and is{larger than 1/4 acre -trees>50'tall............................ YES- 1 ' -trees 20'-49'tall........................ YES- 1 -shrubs... 1' 0 YES— 1 -herbaceous ground cover................ YES— 1 Also add 1 point if there is any"open water"or"aquatic bed" class Immediately next to the forested area(i.e. there is no scrub/shrub or emergent vegetation between them). YES— 1 4e.Decide from the diagrams below whether interspersion between High—5 ' wetland classes is high,moderate,low or none?If you think the Moderate—3 amount of interspersion falls in between the diagrams score accordingly Low— 1 (i.e. a moderately high amount of interspersion would score a 4, on 0 ' while a moderately low amount would score a 2) ° 4 �19yig Ili yy 11011e low lux". 4 atxd r t s t>tlxratc high. 4f Habitat features. Answer questions below,circle features that apply,and score to right: ' Is there evidence that the open or standing water was caused by beavers YES=2 Is a heron rookery located within 300'? YES= 1 ' Are raptor nest/s located within 300'? YES= 1 Are there at least 3 standing dead trees(snags)per acre greater than 10" in diameter at"breast height" (DBH)? YES= 1 ' Are there at least 3 downed logs per acre with a diameter >6" for at least 10'in length? YES= 1 Are there areas (vegetated or unvegetated)within the wetland that are ponded for at least 4 months out of the year, and the wetland has not qualified as having an open water class in Question 4b. ? �i7 YES=2 1 ' 30 1 4g.Connection to streams. (Score one answer only.) ' 4g.1. Does the wetland provide habitat for fish at any time of the year AND YES=6 does it have a perennial surface water connection to a fish-bearing stream. ' 4g.2 Does the wetland provide fish habitat seasonally AND does it have YES=4 a seasonal surface water connection to a fish-bearing stream. ' 4g.3 Does the wetland function to export organic matter through a surface YES=4 water connection at all times of the year to a perennial stream. (V 4g.4 Does the wetland function to export organic matter through a surface�o YES=2 water connection to a stream on a seasonal basis? fQ 4h.Buffers. Score the existing buffers on a scale of 1-5 based on the following four descriptions. ' If the condition of the buffers do not exactly match the description, score either a point higher or lower depending on whether the buffers are less or more degraded. Forest,scrub,native grassland or open water buffers are present for more than 100'around 95%of the circumference. Score=5 Forest,scrub,native grassland,or open water buffers wider than 100' for more than 1/2 of the wetland circumference,or a forest,scrub, ' grasslands,or open water buffers for more than 50'around 95 %of the circumference. Score=3 ' Forest,scrub,native grassland,or open water buffers wider than 100' for more than 1/4 of the wetland circumference, or a forest,scrub,native grassland,or open water buffers wider than 50'for more than 1/2 of the wetland circumference. Score ' No roads,buildings or paved areas within 100'of the wetland for more than 95%of the wetland circumference. Score=2 No roads,buildings or paved areas within 25'of the wetland for more than 95%of the circumference,or " No roads buildings or paved areas within 50'of the wetland for more than ' 1/2 of the wetland circumference. Score(D Paved areas,industrial areas or residential construction(with less than 50' between houses)are less than 25 feet from the wetland for more than 95 % of the circumference of the wetland. Score=0 3 31 1 1 4i.Connection to other habitat areas: 1 Select the description,which best matches the site being evaluated. -Is the wetland connected to,or part of,a riparian corridor at least 100'wide Y� connecting two or more wetlands; or,is there an upland connection present 100' 1 wide with good forest or shrub cover(>25%cover)connecting it with a Significant Habitat Area? 0=5 1 -Is the wetland connected to any other Habitat Area with either 1)a forested/shrub corridor< 100'wide,or 2)a corridor that is> 100'wide,but has a low vegetative cover less than 6 feet in height? Yes=3 1 -Is the wetland connected to,or a part of,a riparian corridor between 50- 100'wide with scrub/shrub or forest cover connection to other wetlands? Yes=3 1 -Is the wetland connected to any other Habitat Area with narrow corridor(<100') of low vegetation(<6'in height)? Yes= 1 1 -Is the wetland and its buffer(if the buffer is less than 50'wide)completely isolated by development(urban,residential with a density greater than 2/acre,or industrial)? Yes=0 1 Now add the scores circled (for Q.5a—0.5i above) to get a total. Is the Total greater than or equal to 22 points? Y Category II S 3 NO Category III 1 1 1 1 1 i 1 1 1 32 1 ' Appendix H. Photograph Log t t ' Wetland Investigation&Delineation Report:Duvall Avenue NE Widening Project Page 129 The City of Renton September 23,2004 Wetland A b, 1 ' . 3F Photo taken from west side of the roadway, near Photo taken from west side of the roadway, near Station 216+00,facing north toward SE 951h Way. Station 213+00,facing south. Wetland B _ t IYI r ' ' Photo taken from west side of the roadway, near Photo taken from west side of the roadway, near Station 198+00,facing north. Station 203+00,facing north. Wetland C Photo taken from east side of the roadway, near Photo taken from east side of the roadway, near Station 207+00,facing south. Station 204+00,facing south. Wetland Investigation&Delineation Report:DuvallAvenue NE lVidening Project ' The City of Renton September 23,2004 Wetland D (0utside of the project area) ^ h" s _ r k� yJ' ^�Y }rI, 1 ' Photo taken approximately 400 feet east of the roadway(Station 208+00),facing northeast. Photo taken approximately 400 feet east of the roadway(Station 208+00),facing north. ' Wetland E t, Y f � Photo taken east of the roadway (Station 209+00), facing southeast. ' Photo taken east of the roadway (Station 209+00), facing west. Wetland Investigation&Delineation Report:DuvallAvenue NE Widening Project _ The City of Renton September 23,2004