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Wetland Inventory (2)1 1 1 1 1 1 1 1 gyn... ~\.,- ~ v. THE SOOT ~OMPANy Wetland and Wildlife Consulting Services 416 Washington Streel SE, Suite 202 Olympia, WA 98501 (360)352-9897 (360) 352-9914 fax cootco[iilolvwa net WETLANDS INVENTORY FOR THE PURVIS PROPERTY A portion of S23/24 T17N R1E Thurston County Tax Parcels #21723130000, #2173140000 Thurston County, City of Yelm AUGUST 2007 REVISED OCTOBER 2007 prepared for: Tahoma Terra, LLC P.O. Box 627 Rainier, WA 98576 prepared by: Steve Shanewise, PW5 Senior Ecologist .. _..., s ~:: ~ ,~ ., 000994 _ purvisocTa inv. doc CONTENTS Figure l: Vicinity Map Introduction ........................................................... ................. l Methods ................................................................. .................2 Results ................................................................... .................3 Table 1. Wetlands/Stream Summary ............... .................4 Discussion ............................................................. .................5 Figure 2: Surveyed Wetlands Map Figure 3: Soil Survey Appendix I: Wetland Descriptions Appendix II: Soil Data Sheets Appendix III: Category Rating Forms References 1 1 1 1 t 1 fl 1 521I24T77NR7E -All locations approximate- PURVIS PROPERTY VICINITY MAP T N ~- FIGURE 1 INTRODUCTION ' This report documents the wetland and stream conditions on approximately 53 acres of property within the City of Yelm. The property occurs primarily along the eastern edge of a plateau above Thompson Creek, but also includes a small extension to [he east that crosses the creek channel. The property currently has minor livestock grazing within the portion along Thompson Creek; the rest of the property has several single-family homes that have no agricultural activities. Seven wetland or stream systems have been identified ' for this property. A single stream, Thompson Creek, occurs within a ditched native channel crossing the property extension in the northeast comer. Six wetlands occur along t the western property portion, two of them in a large, connected complex that drains north [o an eventual off-property connection to Thom son Creek Th i i f tl d p . e rema n ng our we an s aze all small, isolated systems in shallow depressions; three of these wetlands are below the minimum jurisdictional size for regulation (1000 sq ft). Detailed descriptions of the wetlands aze provided in an Appendix, and include soil pit and category rating information. t t 1 PURVIS WETLAND INVENTORY THE COOT COMPANY -~. 1 METHODS ' Field Review Field review of this property was performed in January and March 2007. All azeas of the t property were traversed on foot while searching for wetland conditions. In addition, topographic maps were used to locate depressional areas, and aerial photographs were used to identify unusual vegetation signatures. Al] such features were specifically ' reviewed on the ground for wetland conditions. Wetland Classification Wetland characteristics are described within this report according to the U.S. Fish and Wildlife Service Cowazdin Classification System (1989). Wetland Delineation ' Most delineation work was accomplished in the mid-winter/early spring wet season to afford good interpretation of wetland hydrology. Wetland delineation followed a Routine Methodology based on the Washington State Wetland Identification and Delineation ' Manual (1997), requiring positive indicators for wetland soil, hydrology, and plants: ' • Wetland hydrology was determined by water conditions in pits. • Presence of hydric soil was determined by soil conditions in pits dug azound ' suspected wetlands. Soil inspection included comparison with the Munsell Color Charrs (]992). Genera] soil chazacteristics were derived from information contained within the Soil Survey ofThurstan County, Washington (1990). ' • Occurrence of wetland vegetation was determined through species identification, estimation of dominance, and then assignment of wetland indicator status. Indicator ' status was assigned based upon the National List of Plant Species That Occur In Wetlands (1988), Supplement (1993). State Category Rating The Washington State Wetlands Rating System for Western Washington Revised (2004) was used to establish Category Ratings for the wetlands (Ecology Publication #04-06- 025). Wetland Buffers W l d et an buffer widths were developed by following the City of Yelm Municipal Code Chapter 14.08, specifically Ordinance #833. ' PURVIS WETLAND INVENTORY THE COOT COMPANY - 2 - 0 ' RESULTS t PROPERTY OVERVIEW ' Variable Landscape Structure This property contains two primary landscape structures. The main body of the property to the west is situated at the edge of a headland plateau that rises above the Thompson t Creek "valley" to the east. All land within the plateau azea is positioned well above any floodplain or flooding issues associated with Thom son Creek p . Minimal Agricultural Use Portions of this property may have been used for livestock grazing in the past. Grazing of cattle still occurs within the northeastern property portion that extends across ' Thompson Creek. Abandoned farm buildings in the south-central part of the property may have been used in the past for raising domestic poultry. ' Existing Single Family Homes The property currently supports a handful of single-family homes situated primarily along the east rim of the bluff descending to Thompson Creek. These homes are ' accessed by a driveway extending west from the west end of Berry Valley Road. Excavated Basin An excavated basin occurs west of the abandoned farm building mentioned above. This ' basin may have been dug to accept runoff From the fazm buildings (piping and concrete troughs connect the two), and acted as a sort of "sewage pond" for whatever animals ' were housed in the abandoned buildings. Although fairly deep and large, this basin maintains no wetland characteristics, and is a purely upland feature. WETLANDS t Well Drained Soils Neazly al] of this property contains well-drained, upland soils (Everett, Nisqually, Spanaway). Only a small portion of hydric soils occurs along the west boundary where it ' is associated with a large wetland complex. Large Wetland Complex ' The western edge of this property engages a small portion of a large wetland complex (Wetlands 1 and 2) off-properly to the west. This complex represents the headwater beginning to a drainage route [hat heads north until it eventually connects to the ' Thompson Creek channel. Small Isolated Wetlands ' Four, small, isolated wetlands occur in the west-central part of the property that are all similar in habitat strneture. Only one of these systems (Wetland 3) is large enough to be regulated with a buffer; the remaining three (Wetlands 4, 5 and 6) are below ' PURVIS WETLAND INVENTORY ' THE COOT COMPANY -3- 1 ~~ 1 1 1 1 1 1 1 1 1 1 t 1 jurisdictional size for buffers. Details for these four wetlands aze provided within a single description in Appendix I of this report. Thompson Creek System The Thompson Creek channel crosses the northeast portion of this property. The native channel in this location has been partially ditched in the past. The OHWM for [his system occurs at the top edge of the abrupt channel edge on both sides. Although the channel is partially vegetated below the OHWM, the system should be considered a °stream" rather than a "wetland". Surface waters from winter flooding extend east of the channel into the nearly flat floodplain ground here, but do not extend [o the west more than a few feet due to the rise in ground elevation on this side of the channel. Thompson Creek has no potential for anadromous fish use via its connection [o the Nisqually River due to a massive erosion "blow-out" north of Hwy 510 that has created an impassible barrier many, many feet high. Table 1. Wetlands/Stream Summary Wetland Size Category listing/ Buffer Habitat pts 1 -8.50 acres III / 23 150' 2 -1.9 acres I / 21 150' 3 7,730 sq fr I[I / 14 80' (0.18 acres) 4 665 sq fr III / 14 - (0.02 acres) 5 400 sq fl III / 14 - (0.01 acres) 6 808 sq fr IIU 14 (0.02 acres) Thompson Creek Type 3 150' PURVIS WETLAND INVENTORY THE COOT COMPANY -4- DISCUSSION 1 Buffer Averaging Potential Wetland buffers extending east from Wetland 1 and 3 have i l d B h rregu ar e ges. ot systems have law sensitivity [o disturbance, and performing buffer averaging at both locations would be appropriate. The buffer on Wetland 1 could be averaged to create a straight edge that would parallel the edge of development. With Wetland 3, the sharp point of the buffer could be pulled back, with additional buffer then added where it would provide some protection for Wetland 4. Both buffer adjustments could easily be made while still 1 maintaining a buffer azea equal to that of the unadjusted buffer. 1 1 1 t 1 ' PURVIS WETLAND INVENTORY THE COOT COMPANY - 5 - 1 1 1 1 S23/24T77NR1E Partial Description: 33 =Everett very gravelly sandy loam 65 =McKenna gravelly sandy loam 74 = Nisqually loamy fine sand 111 = Spanaway gravelly sandy loam 126 = Yelm sandy loam 127 = Yelm sandy loam -All locations approximate- PURVIS PROPERTY SOIL MAP T N .~ TBE ~OOT~~tlY FIGURE 3 1 APPENDIX I: WETLAND DESCRIPTIONS i i 1 1 1 i 1 1 WETLANDS INVENTORY FOR THE PURVIS PROPERTY AUGUST 2007 t WETLAND 1 ' SIZE: _ 8.5 Aeres LANDSCAPE POSITION ' Wetland 1 is a Depressional, Outflow system that represents the headwater beginning to a continuous drainage route eventually connecting to Thompson Creek. ' CLASSIFICATION Wetland 1 has been drained in [he past with a lazge, deep, centralized ditch that probably reduced persistent surface water levels by 2 to 3 feet Existing conditions support a range 1 of habitats, with emergent and shmb communities in the "lower" portions of the wetland, while forested conditions occur in the `-upper' portions. Primary hydrology is saturated ground, with only temporazy, shallow surface water during major storm events. ' Cowazdin Dominant Veeetation PALUSTRINE Popu[us trichocarpa ' Forested, Broad-Leafed Deciduous Thuja plicate Scrub-Shrub, Broad-Leafed Deciduous Spiraea douglasii Saturated to Seasonally Flooded, Fresh Rosa pisocarpa ' Mineral Phalaris arundinacea Ditched Agrastis tennis t BOUNDARY DELINEATION Most of the Wetland 1 boundary is moderately distinct, but past drainage activities have ' created a fringe of "effectively drained" Bound azound the entire perimeter. Because of this condition, delineation was performed in March 2007 and relied heavily on the t presence or absence of water or saturated soil within test pits. The southern, forested portion of the wetland contains a hummocky ground topography that translates into a mosaic condition where low spots aze wetland and high ones aze upland. Wetland 1 is ' primazily associated with a formation of hydric, McKenna soil. The following table depicts general field indicators used to delineate the Wetland boundary: WETLAND UPLAND Carex obnupta Cytisus scaparius ' 2 chroma 3+chroma water in pit dry it BOTH 1 ' PURVIS WETLAND DESCRIPTIONS-APPENDIXI THE COOT COMPANY FUNCTION ASSESSMENT ' Following is a list of commonly recognized wetland functions, with an estimated relative value rating for this wetland and a brief conceptual statement regarding the primary factor affecting this rating. A summazy table is also provided for quick reference. 1 1 1 H7GH MODERATE LOW NOT APPLICABLE 2 1 4 1 Plant/Animal Habitat Valoe HIGH Three habitat classes provide high structural diversity. Sediment Capture HIGH Dense emergent and shrub growth. Surface Water Runoff Route MOD Headwater beginning to minor tributary to Thompson Creek. Biofiltration LOW Minimal persistent surface water due to ditching. Groundwater Recharge LOW Underlying poorly drained soil; Minimal surface water persistence due to ditchin . Stormwater De[enfion LOW Ditched outlet with no constriction. Surface Water Supply LOW Only seasonal surface water dischazge. Flood Attenuation NA Not associated u~th a Riverine system. CATEGORY RATING: II[ (47 pts) This wetland qualifies for a Category III rating with a Habitat Function score of 23 pts., requiring a 150' buffer pursuant to the Yelm Municipal Code. 1 Score for Water Qualit Functions 10 Score for H drologic Functions 14 Score for Habitat Functions 23 TOTAL Score for Functions 47 ' PURVIS WETLAND DESCRIPTIONS-APPENDIXI 1 fHE COOT COMPANY 1 1 1 1 1 1 1 1 WETLAND 2 SIZE: ~1.9 Acres LANDSCAPE POSITION: This wetland is a depressional, Outflow system that represents the outfall route from Wetland 1. CLASSIFICATION This wetland represents the outlet drainage route for Wetland 1. The original, native outlet route is now an abandoned channel where the upper portion has been altered (filled in) by past earthwork. An artificial channel was excavated to replace the abandoned channel, probably in association with the ditching of Wetland 1. Both swales support a mixture of shrub and emergent communities across their width, with a mazgin of mostly tall trees that create a closed canopy overhead. The abandoned charnel now supporcs pockets of shallow surface water while the artificial channel sustains seasonal, shallow sheet-flow draining from Wetland 1. The small pond is e permanent water feature that vanes significantly in depth from winter to summer. Where the two Swale portions of this wetland connect, the system then turns into a Category I Mature Forested condition that continues to the north property line dominated by large black cottonwood and Oregon ash trees. North of [he project property, the wetland occurs as an actively grazed, cleared emergent pasture dominated by a saturated soil hydrology. Cowardin Dominant Vegetation PALUSTRINE Fraxinus latijolia Forested, Broad-Leafed Deciduous Populus trichocarpa Emergent, Persistent Physocarpus capita[us Saturated to Seasonally Flooded, Fresh Symphoricarpo.s albu.s Mineral Ranunculus repens Oenanthe sarmentasa Graminoid spp. PURVIS WETLAND DESCRIPTIONS-APPENDIX I ' THE COOT COMPANY 1 1 LJ BOUNDARY DELINEATION All wetland edges associated with the Wetland 2 system aze distinct boundazies generally identified by a brief, abrupt rise Prom the geuerally level Swale bottom into the adjacent upland landscape. The following table depicts general field indicators used to delineate this wetland boundary: WETLAND UPLAND Oenanthe sarmenmsa Polystrchum munitum 1 chroma 2+ clvoma saturated to surface drv nit BOTH Fraxinus latifolia Symphoricarpos albus Physocarpus capitatus PURVIS WETLAND DESCRIPTIONS-APPENDIX I THE COOT COMPANY 4 FUNCTION ASSESSMENT ' Following is a list of commonly recognized wetland functions, with an estimated relative value rating for this wetland and a brief conceptual statement regarding the primary factor affecting this rating. A summazy table is also provided for quick reference. t i HIGH MODERATE LOW NOT APPLICABLE '~ 2 2 3 1 Plant/Animal Habitat Value HIGH Diverse plant community with emergent, shrub and forest species. Surface Water Runoff Route HIGH Outlet for Wetland l; continuous drainage eventually connecting to Thom son Creek. Bio5ltration MOD Shallow, sheet-flowing surface water through mostly dense emergent row[h. Sediment Capture MOD Mostly dense emergent growth with shallow, sheet-flowing surface water. Surface Water Supply LOW Only seasonal surface water outlet. Groundwater Recharge LOW Minimal, persistent, non-flowing surface water. Stormwater Detention LOW Minima] depressional structure. Flood Attenuation NA Not associated with a Riverine system. CATEGORY RATING: I (40 pts) This wetland qualifies for a Mature Forest Category I rating with a moderate level of Habitat Function (21 pts), requiring a ] 50' buffer pursuant to the Yelm Municipal Code. t Score for Water Qualit Functions 9 Score for Hydrolo is Functions 10 Score for Habitat Functions 21 TOTAL Score for Fuuctious 40 PURVIS WETLAND DESCRIPTIONS-APPENDIXI t THE COOT COMPANY WETLAND 3, 4, 5, 6 1 S[ZE: Wetland 3: 7,730 sgfr (O.18ac) Wetland 4: 665 sgft (0.02ac) Wetland 5: 400 sgfr (O.Olac) Wetland 6: 808 sgft (0.02ac) LANDSCAPE POSITION These four wetlands are all Depressional, Closed systems set within shallow basins along ' benches in a gently sloped landscape. CLASSIFICATION These small to very small wetlands are mostly shrub dominated, shallow basins with temporary to seasonal surface water conditions. Under existing conditions, these systems have no surface water outfall although extreme high water conditions could cause ' temporary overland sheetflow to either Wetland 1 or 2. The wetlands lack snags or woody debris. ' Cowardin Dominant Vegetation PALUSTRINE Spiraea douglasii ' Scrub-Shrub, Broad Leaved Deciduous Rosa pisocarpa Temporary to Seasonal Flooding, Fresh Fraxinus [atifolia Mineral Phalaris arundinacea ' Drained 1 1 1 BOUNDARY DELINEATION Most of the wetland boundazies for these systems were fairly distinct and occurred where the ground rose abruptly for a few inches from an otherwise flat basin bottom. Soils were either darker, or heavily mottled within the wetland, and upland vegetation formed a mostly clear edge a[ the delineated boundary. The following table depicts general field indicators used to delineate the wetland boundazy: WETLAND UPLAND 1 chroma Water in pit Gau[thena sha[lon 2 chroma BOTH Spiraea douglasii EveretUYelm soils PURVIS WETLAND DESCRIPTIONS-APPENDIXI THE COOT COMPANY FUNCTION ASSESSMENT ' Following is a list of commonly recognized wetland functions, with an estimated relative value rating for this wetland and a brief conceptual statement regarding the primary factor affecting this rating. A summary table is also provided for quick reference. 1 1 1 1 1 1 t HIGH MODERATE LOW NOT APPLICABLE 2 1 4 1 Groundwater Recharge HIGH Depressional basins with no outlets over porous soils Sediment Capture HIGH Closed basins with no surface water outlets. Stormwater Detention MOD Depressional basins with no outlets, but small very small watersheds. Biofiltration LOW Only temporary to seasonal surface water persistence. Plant/Animal Habitat Value LOW Small size; low structural diversity, limited surface water presence Surface Water Runoff Route LOW Closed basins with no surface water outlets. Surface Water Supply LOW Closed basins with no surface water outlets Flood Attenuation NA Not associated with a Riverine system CATEGORY RATING: III (50 pts) These wetlands all qualify for a Category III rating with a Habitat Function Score of 14 points. Wetlands 4, 5 and 6 aze below the jurisdictional size limit (1,000 sq fr) far regulation by the City of Yelm; Wetland 3 requires an 80' buffer. Score for Water Qualit Functions 12 Score for H drolo is Functions 24 Score for Habitat Functions 14 TOTAL Score for Functions 50 ' PURVIS WETLAND DESCRIPTIONS-APPENDIX I THE COOT COMPANY APPENDIX II: SOIL DATA SHEETS 1 1 1 1 1 t 1 1 1 1 t 1 1 WETLANDS INVENTORY FOR THE PURVIS PROPERTY AUGUST 2007 1 IN-PIT ' DATA FORM ROUTINE ONSITE DETERMINATION ME'PHOD !WA State Wefland Delineation nr 19R7 Coros Wetland Delineation Manuall Projeo[/Site: Purvis Property Dale: March 2007 Applicant/Owner Tahoma Ten'a LhC County 'fhurslon Slats LVA Field lnvosti ator (s): S. Shenewise S/T/R: 23,24lTI7/RIE Do Normal Circumstances exist a[ the sitel Yes Cammm~ity ID: I-IN Is the site significantly disturbed? No Transect ID: Is [he area a potential Problem Area? No Plo[ [D: Explanation ofatypical or problem area: VEGETATION Dominant Plm¢Species Indicator Stratum 1. Spiraea dnuglasii FACW S 2. Rosa pisocmprr PAC S 3. Phalaris artrndinacea FACW FI HYDROPHYTIC VEGETATION INDICATORS: Percent of dominant species that are OBL, FACW, an d/or FAG: >50 Indicators that aPPIY~ Regional knowledge of plan[ communities: X Wetland plant list X PhysiologicaVreproduc[ive adapmtions: Morphological adaptations: Technical hiterature: Wetland plan[ Dala Hase: Other: Hydrophy[ic vegetation present? Yes Rationale/Remarks: Dominant spp. FAC and wetter. HYDROLOGY - - Saturated in lJpper 12" Is it the growing season?: Yes Haled on: March Oxidized Roo[ Channels < 12" Depth [o free wflter in pit: De th m saturated soil: Q2" Stream, lake, or gauge data: Other Aerial photographs: Wetland hydrology present? Yes Rationale/Remarks: Approved hydrology indicators p resent _ SOILS Map Unit Name: McKenna gravelly sill loam Drainage Class: PD (Series & Phase) Taxomm~y (subgroup): loamy skeletal, mixed, nonacid, mesic Mollic 1{aplaquepts Field observations confirm mapped type? Unconfirmed ProlSle Description neprh hlorizon Mavixcolor M1follle colors M1(ortleabrmJame Tezrvre/ Drawir,yofsoil (iocaenl (Mansell) (Muwolll su/oonlnsi eln,GVU, nIC, pmfilc (mnlcl, dea~npima/ 0~ 12 I OYR2/2 many faint IOYRS/8 Hydric Snil Utdicators Listed on Local Lisl Reducing Conditions Listed on National List Hydric soils present? Yes Rationale for decision/Remarks: 2 chroma/wmoRles WETLAND DETERMINATION Hydrophytic vegetation present? Yes Hydric Soils presem? Yes Wetland Hydrology present? Yes Is Sampling Pain[ within a wefland7Yes Rationale/Remarks: Positive Cor ell 3 parameters NOTES: ,. TAE SOOT ~OMPAIry w.a..e..e wnnu. er.r.rr 1 OUT-PIT DATA FORM ROUTING ONSITE DETERMINATION METHOD (WA Stnte We[lend Delineation or 1957 Coros Wetland Delineation ManuaD ProjecUSite: Purvis Property Dale: March 2007 Applicant/Owner 'fahoma Terra LLC County: Thurston State: WA Field Investi amt(s): S. Shanewise SIT/R: 23,24/T 17/RIE Do Normal Circwnstances exist at the site? Yas Community ID: ]-OUT Is the site significantly disturbed? No "fransect ID: is the area a potential Problem Areal No Plol ID: Explanation of atypical or problem area: VF.G F.TATION Dominant Plant Speeies Indicator Strntum 1. L}Itisus scoparius UPL S 2. P.reudotsaga menziesii FACU T 3. Rhamnus put'shiana FAC T 4. Pteridium aguilinum FACU H HYDROPHYTIC VEGETATION INDICATORS: Percent of dominant species That are OBL, FAC W, and/or FAQ <50 indicators that apply: Regional knowledge of plan[ communities X Wetland plan[ list X Physiological/reproductive adaptations: Morphological adaptations: Technical Literature: Wetland plan[Dala Rase: Other: Hydrophy4ic vegotnlion present? No Rationale/Remarks: Dominant spp. FAC-U HYDROLOGY NONE Depth to free water in pit De th to saturated soil:>12" Stream, lake, or gauge data: Olher: Aerial photographs: Wetland hydrology present? No Ra[ionale/Remarks: Na presence or indication of wetl and hydrology. SOILS Map Unit Name: Everett very gravelly sandy loam Drainage Class: SED (Serias& Phase) Taxonomy (subgroup): sandy skeletal, mixed, mesic Andic Xerochrepts Field observations confirm mapped type? Unconfirmed Profile Description nePlh nonzon Mem wlor Mmik mlorr Monlc e4unJnnoa TmuN (inoLas) (Munvelp (MnnsellJ size/conlresi simdure,em 0-33 I OYR3/3 312 IOYR3/4 none Hydric Soil (ndicarolre NONB Hydric soils present? No Rationale Cor decision/Remarks: No indicators W F.TLAND DETERMINATION Hydmphytic vegetation present? No Hydric Soils present? No ' Wetland hydrology presem?No Is Sampling Poinnvitllinawe(land?No Rationale/Remarks: Negative for all three parameters NOTES: THE ~OOT~OMPANy wm..~e.ve wmun ei.i.e. ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ r e~ ~ ~ ~ ~ 2 IN-PIT DATA FORM ROUTIRE ONSITE DCTERM[NAT[ON METHOD tWA State Wetbrnd Delineation or 1987 Coros Wetland Delineation Manual) Project/Site: Purvis Property Date: Maroh 2007 Applicant/Owner: Tahoma Terra LLC County: Thurstmr State: WA Field Invas[i ator (s): S. Shanewise S/T/R: 23,24/T17/RIE Do Normal Circumstances exist at the site? Yes Community ID: 2-IN Is the aite significantly disturbed? No Transact ID: Is the area a potential Problem Areal No Plot ID: Explanation of atypical or problem area: VEGETATION Unminan[ Flant Species Indicator Stratum 1. Frnxinus latifo[ia FACW T 2. Physocmpers cnpitatus FACW- S 3. Oenanthe sarmenmsa OBL E 4. Ranurvculus repens FACW hI 5. Symphw~icarpos albus FACU S HYDROPHYTJC VEGETATION INDICATORS : Percent of dominant species that are OBL, FACW, and/or FAC: >50 °/a Indicators that apply: Regional knowledge of plan[ conununi[ies: X Wetland plant list X Physiological/reproductive adaptations: Morphological adaptations'. Technical Lite~ahve: Wetland plant Date Hasa: Other: Hydrophy[ic vegetation present? Yes Rmionale/Remarks: Dominant spp. FAC and welter. HYDROLOGY SaturateA in Upper 12" Drainage Pa¢ems Is jt the growing season?: Yes Based om Memh Oxidized Rool Channels < 12" Deptll ro Cree water in pir. b" De th to saturated soil: 0" Stream, lake, or gauge data: Other: Aerial photographs: Wetland hydrology present? Yes Rationale/Remarks: Approved hydrology indicators present SOILS Map Unil Name: Yelm fine sandy loam Drainage Class: W D (Series & These) Taxonomy (subgroup): Medial, mesic Aquic Dyslric Xerochrepts Field observations confirm mapped rypa7 Unconfirmed Profile llescription Darn Hndmn Mena cnNr Monln rnlmd MolaeaD~maenw Tuuud nawiny of roll (IncLcs) (Munsel9 (Mnmelp siss/conrcuw simceire, ae pmfila (mvicL d.,nfn~mnl 012 IOYR2/I Hydric Snil Indiurtors Reducing Conditions Gleyed or Low-Chroma Hydric soils present? Yes Rationale for decision/Remarks- Ichroma W CTLAND DETERMINATION Hydrophy[ic vegetation present? Yas Hydric Soils present? Yes Wetland I'lydrology present? Yes Is Sampling Poim within a wetland? Yes Rationale/Remarks: Positive Fm' all 3 parameters NOTES: ,.~ TflE SOOT OMPAN~ w.n..e..e wnem. n.i.ar 2 OUT-PIT DATA FORM ROUTINE ONSITE DETERMINATION METHOD (WA State Wetland Delioentinn nr I9fl7 Cnrns Wetland Delinea Finn Manuall Project/Site: Purvis property Date: March 2007 I ApplicnnUOwner: Tahoma Terra LLC County: Thurston State: WA Field htves[i a[or (s : S. Shenewise S/T/R: 23,24/T'17/RIE Do Normal Ciroums[ances exist a[ the sire? Yes Community ID; 2-0UT Is the site significantly dishuhed? No 'Pransect 1D: [s the area a po[eotiel Problem Area? No PIotID: Explanation of atypical or p~rohlem area: VEGETATION Dominant 1'Inn[ Species Indicator Stratum I. Psetrdotsugn menaierri FACU T 2. Rubus discolor FACU V 3. dlnus• rethra FAC T 4. Sjmrphoricarpos albus FACU S 5. /'opulus hichocarpa FAC T HYDROPHYTIC VECF.TATION INDICATORS : Percent of dominant species that are OBL, PAC W, fin d/or FAC: c $0 Indicamrs that apply: Regional knowledge of plant communities: X Wetland plant list X Physiological/reproductive adaptations: Morphological adaptations: Technical Literature: Wetland plant Data Base: Other: Hydrophytic vegetation present? No Rationale/Remarks: Dominant spp. PAC-U HYDROLOGY NONE Depth m free water in pit De [h to sanuateJ soil:>I2" Stream, lake, or gauge data: Other: Aerial phomgraphs: Wetland hydrology present? No Rationale/Remarks: No presence or indication of wetland hydrology. SOILS Map Wfit Name: Yelm fine sandy loran Drainage Class: WD (Series & Phase) 'Taxonomy (subgroup): Medial, mesic Aquic Dysb'ic Xemchrepts Field observations confirm mapped type? Unconfirmed Profile Description ecp0i Honzon Meln'x color Motile colors Motile neonaena Tuinre/ (indiu) IMmm~lp (MnnsalU eiedcanirem smmuve, em. 0~5 I OYR3/3 5~ 12 I OYR2/2 Hydric boil Indicators NONE Hydric soils present? No Rationale far decision/Remarks: No indicmors, 2 chroma, not mottles W ETLgND DETERMINATION Hydrophytic vegetation present? No Hydric Soils present? No Wetland Hydrology present? No Is Sampling Paint within a wetland? Nn Rationale/Bemarks: Negative for all three pmameters NOTES: TAE SOOT ~OMPANy w.n.~e.nf canna. e~omu 3,4,5,6 IN-PIT DATA FORM ROUTINE ONSITE UETCRMINATION METHOD (WA State Wetland Delineation or 1987 Corps Wetland Delineation Manual) Project/Site: Purvis Property Date: January 2007 Applicant/Owner Tahoina Terra LLC County: Thurston Smote: WA Eiold Investi a[or (s): S. Shanewise S/T/R: 23,24/TI7/RIE Do Normal Circumstances exist at [he site? Ves Community IU: 3,4,5,6-IN Is the site signifcantly disturbed? No Transact ID: Is the area a potential Problem Area? No Plot IU: Explanation of atypical or problem area: VEf,ETA'f10N dominant Plant Species Indicator Stratum 1. Spiraen douglasii FACW S 2. Rosa pisocarpn FAC S 3. Fraxinvs latijolra FACW T 4. Phalnris nrundinacea FACW H HYDROPH YTIC VEGCTATION INf11CATORS : Percent of dominant species that are OBL, FACW, an d/or FAG: >50 95 Indicators that apply: Regional knowledge of plant communities: X Wetland plant list. X Physiological/reproductive adaptations: Morphological adaptations: Technical Literature: Wetland plan[ Data Rasa: Other: Hydrophytic vegetation presentl Yes Rationale/Remarks: Dominant spp. PAC and wetter. HYUROLOCY Saturated in Upper 12" Is it the growing season?: No Rased on: January Depth to free water in pit 8" De th to BaRlreted Soil: 0" Strewn, lake, or gauge date: Other: Aerial photographs: Wetland hydrology present? Yes Rationale/Remarks: Approved hydrology indicators p resent SOILS Map Unit Name: Everett Urainage Class: (Series & Phase) 'I'axonnnry (subgroup): Pield observations confnn mapped type? Unconfirmed Profile Description naplh 1{ovizan Mnu oalao Molilo molars Molllevbnndonco Tcxpud niewin6 ofsol (inoliu) (MUVdI) (Munsnlp xizeloommsi ilruowu.ero. Profile (maleb nuPnPUaa> 0~4 IOYR2/2 none 412 IOYR2/1 none Hydric Soil Indicators Gle ed or Low-Chroma Hydric soils prescnt7 Yes Rationale for decision/Remarks: I Chroma WETLAND DETEItM INA'1'ION Hydrophytic vegetation presen[7 Yes Hydric Soils present? Yes Wetland hydrology present? Yes Is Sampling Pain[ within a wetland? Yes Ralicnale/Remarks: Positive for all 3 parameters NOTF,S: TflE SOOT ~OMPANy wal..e.~e wmur. eiover ~ ~ ~ ~ ~ ~ _ ~ ~ ~ ~ ~ ~ ~ r ~ a ~ ~ 3,4,5,6 OUT-PIT DATA PORM ROUTINE ONSITE DCTERMINATION METHOD WA State Wethmd Delineation nr 1987 Cor is We11anU Delineation Manual Project/Site: Purvis Property Date: January 2007 Applicant/Owner: Tahoma Tcrre LLC County: Thurston State: WA Field Inveati etor (s): S. Shanewise S/T/R: 23,24/T 17/RIE Do Nm'mel Circumstances exls[ aI the site? Yes Community ID: 3,4,5,6-OUT is the site significantly disturbed? No Transact lD: Is the area a potential Problem Areal No Plot [D: Explanation of atypical or problem area: VEGGTA'CION Dominant Plant Species Indicator Stratum 1. Polysticham munitmn FACU S 2. Pseudotsnga merrziesii FACU T 7. Gnu[therra sha77an FACU* S 4. Phalaris arundinacea FACW H HYDROPH YT[C VF,GETATION INDICATORS: Percent of dominant species [hat are DBL, FACW, an d/or FAQ ~ 50 Indicators that apply: Regional knowledge of plant communities: X Wetland plan[ list X Physiological/reproductive adaptations: Morphological adaptations: Technical Lilemnve: Wetland plant Data Base: Other. Hydrophytic vegetatiot present? No Rationale/12emarks: Dominant app. FA6U H YDI20LOGY None None De th to saturated soil:>12" Stream, lake, or gauge data: Other: - Aerial photographs: Wetland hydrology present? No Rationale/Remarks: No presence or indication of wetland hydrology. SOILS Map Unit Name: Everett Drainage Class (Series S+ Phase) Taxonomy (subgroup): Field observations confirm mapped type? Unconflnned Profile Description OapIL Horieon Mmn'x colo. Mollln mlurs Moyle abundance Taxwid (ioebeai (Mmiselb (MUmelh size/cnntrnst 9lnimnl9, we. 0~5 10YR3@ none 5.912 JOYR2Y2 none Ilydric Soil Indicators None HyUric soils presentT No Rationale for decision/Remarks: 2 chroma no mottles WETLAND DETCRMINATION Hydrophytic vegetation present? No Hydric Soils present'? No Wetland Hydrology present? No Is Sampling Point within a wetland? No Rationale/Remarks: Negative for all three parameters NOTES: TflE~~00T~OMPANy wwl..a..e wilenr. mmaar ' APPENDIX III: CATEGORY RATING FORMS 1 1 1 1 1 1 1 1 1 1 1 1 WETLANDS INVENTORY FOR THE PURVIS PROPERTY AUGUST 2007 1 1 Wetlmd name or number _I DRAFT WETLAND RATING FORM -WESTERN WASHINGTON Name of wetland (if known): Purvis Prooerty Location: SEC: 23/24 TWNSHP: 17N 12NGE; l8 (Attack map with outline of wetland to rating form) Person Ra[ing Welland: S Shanewise Affiliation: The Coot Compaq Dale of Site Visit: March 2007 DRAFT SUMMARY OF RATING Catesory based on FUNCTIONS provided by wetland I_ II_ ~_/ IV_ ' Category I =Score >=70 Category II =Score 51-69 Category IH =Score 30-50 Cate Or N =S < 30 R v core u 1 1 1 Score for Water Quality Functions 10 Score for Hydrologic Functions 14 Score for Habitat Functions 23 TOTAL score for Fuuctions 47 Category based on SPECIAL CIIARACTERISTICS of wetland I_ II_ Does not Apply_/ Wetland Ra[ing Form-western Washmgtnn FIDaI CalegOry (choose the "highest" category 4om above) Check the appropriate type and class of wetland being rated. CWetTaud''T;}'Pe~`_.F~,-"~~ Estuarine '-"~' ~"='ila~Ade~I3ss'rw ^s~at Depressional ~$; r~F / Natural Herita a Wetland Riverine Bow Lake-fringe Mature Forest Slo e Old Growth Forest Flats Coastal La oo^ Freshwater Tidal Interdunal None of the above / t August 2004 1 1 Wetland name or number _I =,D '~~epresstonaLand~FlatsWetlands '`.'~~ "` -''-"'" , ' ~ zz ~.4~~ 'n~~~~~ W E I ~~ ' ` ~ pp Y } .„ AT RQIIAI; ,TY.y~FgUNC11IONSa ndicaCOrsthattfie'~ et ]andunctxonstoi „ .,~. P~3,. fi>.. i&E^,i1~••~" •X""-' ,y9 4-n ' ~ ~ y ~ t-z~,~ ^.r ~.~ '' ,q, ~.F+I' '" r'k ^' +a, lm POVe3Waterx LLah~'~s'~B~a~~ a ~~^i ~~ „ - n er r ~. _.r ~. ". D D 1. Does the wetland have the potential to improve water quality? (see p.38) x ~~ "• ' D 1.1 Characteristics of surface water flows out of the wetland: sr tss~ Wetland is a depression with no surface water outlet points = 3 D Wetland has an intermittently flowing, OR highly constricted outlet points = 2 I Wetland has an unconstricted surface outlet points = I Wetland is flat and~has no obvious outlet and or outlet is a ditch oints = I D L2 The soil2 inches below the surface is clay, organiq or smells anoxic (hydrogen sulfide or rotten eggs) 4 D YES points = 4 NO ourts = 0 D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest class) D Wetland has persistent, ungrazed, vegetation> = 95% of area points = 5 Wetland has persistent, ungrazed, vegetation> = I/2 of azea points = 3 5 Wetland has persistent, ungrazed vegetation > = 1/10 of area points = 1 Wetland has persistent, ungrazed vegetation <1/l0 of azea points = 0 D 1.4 Characteristics of seasonal ponding or inundation. This is the area of the wetland that is ponded for at least 2 months but dries out D , sometime during the year. Do not count the area that is permanently ponded. 0 Estimate area w the average condition ~ out of (0 yrs. Area seasonally ponded is > % total azea of wetland points = 4 Area seasonally ponded is>'/< total area of wetland paints = 2 Area seasonally ponded is < y total area of wetland points = 0 NOTE: See text or indicators o seasonal and ermanent inundation. D Total for D 1 Add the points in the boxes above 10 D D 2. Does [he wetland have the opDOrtunity [o improve water quafity? (see p. 44) Answer YES if you know or believe there are pollutants in groundwater or surface water coming into dte wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from the wetland Nate which of thefollowi . n conditions provide the sources of pollutants. - Grazing in the wetland or within I50 ft - Untreated stormwa[er discharges to wetland - Tilled fields or orchards within 150 8 of wetland - A stream or culvert discharges into wetland that drains developed areas, residential azeas, farmed fields, roads, or clear-cut logging - Residential, urban azeas, golf courses are within 150 ft of wetland multiplier - Wetland is fed by groundwater high in phosphorus or nitrogen - Other I YES multi tier is 2 multiplier is 1 _ ~ D TOTAL -Water Quality Functions Multiply the score from Dl by D2 ]0 Add score !o table on . 1 W.ah..d Pa,ien c ' .. _.._.._.._ y ~~n-..wiuu rr av u,gw~ J Aaglls[2004 1 1 t Wetland name or number 1 D Depi'esstonal and Fl t tl ` a s We ands , ~ ~ + r'Pmnts yHYf?ROLOGIC FUNCTIONS .Indreato'rstthat thew land functions to iednce 'b -'~~ s' ` ' °~ ~ t .floodin an'd;sheam;d'e`gr`adatton ~~~ i ~~` ~~ P~it LL ,`. ~w``` * :r ::, _ _ ;, ~ ._ D 3. Does the wetland have the otential to redu fl di ce oo ng and erosion? see .4~ D D 3.1 Characteristics of surface water flows out of the wetland Wetland has no surface water outlet points = 3 Wetland has au intermittently flowing, or highly constricted outlet oi t =2 1 p n s Wetland is flat and has no obvious outlet and/or outlet is a small ditch points =1 Wetland has an unconstricted surface outlet D oints = 0 D 3.2 Depth of storage during we[ periods Estimate the height of ponding above the bottom of [he outlet. Marks of ponding are 3 fr or more above the surface points = 7 The wet9and is a "headwatef' wetland" 3 points = 5 Marks of ponding between 2 ft to < 3 h from surface points = 5 Marks are at least 0.5 ft to < 2 ft from surface points = 3 Wetland is flat but has small depressions on the surface that trap water points = 1 Marks of ondin less than OS ft oints = 0 D D 3.3 Contribution of wetland to storage in the watershed Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland itse J The area of the basin is less than 10 times the area of wetland i po nts = 5 The area of [he basin is 10 to 100 times [he area of the wetland 3 points = 3 The area of the basin is more than 100 times [he area of the wetland oi t = 0 p n s Wetland is in the FLATS class (basin~(te wetland, b deFmition) oints = 5 D Total for D 3 Add the points in the boxes above 7 D D 4. Does the wetland have the opportunity to reduce flooding and erosion? (see p. 49 Answer YLS if the wetland is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows . Answer NO if the water comhtg into the wetland is controlled by a structure such as flood gate, tide gate, flap valve; reservoir etc. OR you estimate that more than 90 % of the water in the Welland is from groundwater. Note which of the, following indicators of opportunity apply. /Wetland is ht a headwate f i r o a r ver or stream [hat has flooding problems - Wetland drains to a river or stream [hat has flooding problems multiplier - Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or stream that has flooding problems - Other YES multiplier is 2 NO multi tier is 1 j~ TOTAL -Hydrologic Functions Multiply the score from D 3 by D 4 14 Add score to table on p. 1 Wetland Rating Form -wes[em Washington August 2004 1 1 i 1 1 Wetland Warne or Dumber I_ iThese questtons apply to weitartds of a1Z,'HCrM et sa ses ~~~t; ° ~ ~ `~*. t' ~ ~, ~ ~Polnts , "i c ~= ~ v ><~r ~' * ,.a s'r"v*' t -~ ` v' ` .S~x EfASITAT'-~'IINCTIONS indtcatorstha~wetlan-dfimcttottsio.provide_unportant~habtta{ ~ ~. r H 1. Does the wetland have the otenfial to provide habitat for many species? a ~` H 1.1 Vegetation strueture (see p. 72) Check the types of vegetation classes present (as defined by Cawardin)- if the class covers mare than 10% of the area of the wetland or'/. acre. -Aquatic bed /Emergent plants _/Scrub/shrub (areas where shrubs have >30% cover) 7 _/Forested (areas where trees have>30% cover) _Forested areas have 3 out of 5 svata (canopy, sub-canopy, shrubs, herbaceous; moss/ground-cover) Add the number of vegetation structures that qualify. lfyou have: 4 structures or more points = 4 3 structures points=2 2 structures points= I 1 structure Dints = 0 H 1.2. Hvdrooericds (see p. 73) Check the types of water regimes (hydraperiods) present within the wetland. The water regime has to cover more than 10% of [he wetland or % acre to corm[ (see text jor descriptions of hydroperiods) -Permanently flooded or inundated 4 or more types present points = 3 I /Seasonally flooded or inundated _ 3 types present points = 2 -Occasionally t7ooded or inuudated 2 types present poinC=1 _/Sa[urated only _ Permanently Mowing stream or river in, or edjacent to, [he wetland _ Seasonally [lowing stream in, or adjacent [q the wetland _ Lake fringe wet[¢nd = 2 points Freshwater fida! wetland = 2 points H 1.3. richness of Plant Soec'es (see p. 75) Count the number of plant species in the wetland [hat cover at least 10 ft~. (different patches of the same epecies can be comhined !o meet the size threshold) Yau do not have to name [be species. '~ Do not include Eurasian I~Ifoil, reed canarygrass, purple loasesirife, Canadian Thistle If you counted: > 19 species points =2 List epecies below if you want to: 5 - 19 species points = 1 <Sspecies points=0 I w>aA„n a,e.,,, n,.~ ..... .. ......... ~.....e..,.. .., August GUU4 1 1 1 1 1 1 1 Wetland name or number I H 1.4. In[ersnersion of habitats (see p. 76) Decide tinm The diagrams below whether interspersion between Cowardin vegetation classes (described in H 1.1 ), or the classes and unvege[ated areas (can include open water or mudflats) is high, medium, low, or none. DOO O None = 0 points Low = 1 point Moderate = 2 points mss, s ~~'~'" ~.~ ~ ~ i T x ~ us'a~" t r., ~ ~ ~ ' R\\ ~x6 \ \~ .4 ~- [riparian braided channels] High = 3 points NOTE: Ifyw have four or more classes or three vegetation classes and open water Che rating is always high". H 1.5. Special Habitat Features (see p. 77) Check the habitat features that are present in [he wetland. The number ajchecks is [he number of points you put into the next column. _/Large, doomed, woody debris within the wetland (>4in. diameter and 6 ft long). _/Standing snags (diameter at the bottom> 4 inches) in the wetland 2 Undercut banks are present for at least 6.6 ft (2m) and/or overhanging vegetation extends at least 3.3 ft (Ltn) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (1 Om) -Stable steep banks offine materiel that might be used by beaver or musAra[ for derming (>30degree slope) OR signs of recent beaver ac[iviTy are present (cur shrubs or n•ees [hat have not yet turned grey brown) A[ lent ``/<acre of thin-stemmed persistent vegetation or woody branches are present in areas [ha[ are permanently or seasonally inundated. (structures for ege laying by amphibians) Invasive plants cover less than 25 % of the wetland area m each stratum of plants H 1. TOTAL Score - potential for providing habitat 8 Add the scores from codatmtt above Comments ' Wetland Rafing Form ~ western Washington I4 August 2004 1 1 1 1 i 1 1 1 Wetland nama or number 1 H 2. Does the wetland have the opportunity Co provide habitat for many species'! ~~~~~, H 2.1 Buffers (see p. 80) Choose the description that best represents condition ojbuffer of wetland. The highest scaring criterion that applies to the wetland is to be used in the rating. See text for definition of "undisturhed." / l00 m (330ft) of relatively undisturbed vegetated areas, rocky areas, or open water >9~% of circumference. No structures are within the undisturbed part of buffer. (relatively undisturbed also means no-gazing) Points =5 ~ 100 m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water > 50% circumference. - points=4 50 m (170ft) of relatively undisturbed vegetated areas, rocky areas, or open water>95° circumference. Paints = 4 l00 m (330ft) of relatively undisturbed vegetated areas, rocky areas, or open water> 25 circumference. Points = 3 - 50 m (170ft) of relatively undisturbed vegetated areas, rocky areas, or open water for> 50% circumference. Points=3 If buffer does not meet xoy of the criteria above - No paved azeas (except paved trails) or buildings within 25 m (80ft) of wetland> 95 circumference. Light to moderate gazing, or lawns are OK. Points = 2 No paved areas or buildings within SOm of wetland for>50% circumference. Light to moderate gazing, or lawns are OK Points=2 Heavy gazing in buffer. Points = 1 Vegetated buffers are Qm wide (6.6ft) Eor more than 95% of the circumference (e.g. tilled Eelds, paving, basalt bedrock extend to edge of wetland Points = 0. - Buffer does not meet any of the criteria above. Points = 1 H 2.2 Corridors and Connections (seep. 81J H 21.1 !s the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian or upland) [hat is at least I50 fr wide, has at least 36% cover of shrubs, forest or native undisturbed prairie, [hat connects [o estuaries, other wetlands or undisturbed uplands tlaat are at least 250 acres in size? (dams in riparian corridors, heavily used gravel roads, paved roads, are considered breaks in the corridor). q 0=4 points (go to H2.3) NO=go to H2.2.2 H 2.2.2 Is [he wetland part of a relatively undisturbed and unbrokeu vegetated corridor (either riparian or upland) that is at least SOfr wide, has at least 30% cover of shrubs or forest, and connects to estuaries, other wetlands or undisturbed uplands that are at least 25 acres m size? OR aLake-fringe wetland, if it does not have an undisturbed corridor as in the question above? YES=2 points (go to H2.3) N0=H2.2.3 H 2.23 [s the wetland: within 5 mi (8km) of a brackish or salt water estuary OR within 3 mi of a large field or pasture (>40 acres) OR within l mi of a lake Beater than 20 acres? YES = 1 oint NO = 0 oints W I d e[ an Ratmg Form-western Washmg[on August 2004 1 1 1 1 1 1 1 1 1 1 Wetland uame or number _I H 23 Near or adjacent [o other~rioriTy h b~tats list d by WDFW (see p. 32) Which of the following priority habimts are within 330ft (100m) of the wetland? (see text for a mare detailed description of these prtoriry habitats) -/ Riparian: The area adjacent [o aquatic systems with flowing water that contains _ elements of both aquatic and terrestrial ecosystems which mutually influence each other. -Aspen Stands: Pure or mixed stands of aspen Ip'eater than 0.8 ha (2 acres). -Cliffs: Greater than 7.6 m (25 fr) high and occurring below 5000 ft. Old-growth forests: (Old-growth west of Cascade crest) Stands of at least 2 tree species, farming amulti-layered canopy with occasional small openings; with at least 20 trees/ha (8 trees/acre)> 81 em (32 in) dbh or> 200 years of age. _Ma[nre forests: Stands with average diameters exceeding 53 cm (21 in) dbh; crown cover may be less that 100°/; crown cover may be less that 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old- erowth; 80 - 200 years old west of the Cascade crest. -Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where amasses aud/or fortis form the natucal climax plan[ community. -Talus: Homogenous areas of rock rubble ranging in average size O.15 - 2.0 m (QS - 6.5 ft), I composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. -Caves: A naturally occurring cavity, recess, void, or system of interconnected passages -Oregon white Oak: Woodlands Stands of pure oak or oaWconifer associations where canopy coverage of the oak component of the stand is 25%. -Urban Natural Open Space: A priority species resides within or is adjacent to [he open space and uses it for breeding andlor regular feeding; and/or the open space functions as' a comdor connecting other priority habitats, especially those that would otherwise be isolated; and/or the open space is an isolated retnnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban development. _Estuary/Esmary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semi-enclosed by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean water is at least occasionally diluted by Freshwater runoff from the land. The salinity may be periodically increased above that of the open ocean by evaporndon. Along some low-energy coastlines [here is appreciable diW[ion of sea water. Estuarine habitat extends upstream and landward [o where ocean-derived salts measure less than O.Sppt. during the period of average annual low flow. Includes both estuaries and lagoons. Marine/Esmarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and may also include the backshore and adjacent components of the terrestrial landscape (e.g„ cliffs, snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and [hat contribute to shoreline fimction (e.g., sand/rock/log recrui[menY, nutrient contribution, erosion control). If wetland has 3 or more priority habitats = 4 points If wetland has 2 priority habitats = 3 points If wetland has 1 prioriTy habitat = 1 point No habitats = 0 points Wedand Rating Porm-western Washington 16 Auaus[2004 1 1 1 1 1 1 1 Wetland name or number 1 H 2.4 Wetland Landscan (choose the one description of the landscape around the wetland that best fits) (see p. 84) There are at least 3 other wetlands within'/, mile, and [he connections between them are relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating, but connections should NOT be bisected by paved roads, fill, fields, or other development. points = 5 The wetland is Lake-fringe on a lake with little disturbance and there are 3 other 5 lake-fringe wetlands within '/smile points = 5 There are at least 3 other wetlands within''/x mile, BUT the connections between [hem are disturbed points = } The wetland is Lake-fringe on a lake with disturbance and there are 3 other lake-fringe wetland within % mile paints=3 There is a[ leas[ 1 wetland within % mile. points =2 There aze no wetlands within % mile. points=0 H 2. T01'AL Score - opportunity for providing habitat Add the scores in the column above 15 Total Score for Habitat Fuuctlons -add the points for H 1, H 2 and record the result on 23 1 ' Wetland Raiing Form -wesfem Washing on 17 August 2004 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Wetland name or number _2_ DRAFT WETLAND RATING FORM -WESTERN WASHINGTON Name of wetland (if lmown): Purvis Property Location: SEC: 23/24 TWNSIIP: 17N RNGE: lE (Attach map with outline of wetland to rating form) Person Rating Wetland: S. Shanewise Affiliation: The Coot Comoanv Date of Site Visit:_March 2007 DRAFT SUMMARY OF RATING Category based on FUNCTIONS provided by wetland I II III / FV Category I =Score >=70 Score for Water Quality Functions 9 Category II =Score 51-69 Score for Hydrologic Functions 10 Category HI =Score 30-50 Score for Habitat Functions 21 Category IV =Score < 30 TOTAL f F i 40 score or unet ons Category based on SPECIAL CHARACTERISTICS of wetland I_/_ II_ Does not Apply_ 1 F1naI Calt'gOry (choose the "highest" category from above) ^ ' Check the appropriate type and class of wetland being rated. 1 W t a1 ad~`L e~„:~'~y Estuarine ~."'~g,.WettanilrC7a§"'s'`~. Depressronal / Natural Herita a Wetland Riverine Bo Lake-Erin re Mature Forest / Slope Old Growth Forest Flats Coastal La oon Freshwater Tidal Interdunal None of the above Wetland Rating Form-western Washington I August 2004 1 1 1 1 t t 1 t W eland name ornumber -2 j~* ~~D~epr~esstonaLand Flat's Wetlands ~,•- ~ >~- ~ ~ e {+. ~~ t~fis' ~"ti..e~ '~1"vs ""^~r,`,~ ~ n w-1t 3v ~~ I ~ ' POlIltS_.-'~$i , , WAT~'iR QUAL"I'I~~UNC$', ONS 'Indicators that thawetland4 tncnons to,v,; . tm rove;.water, uahty ~• ~"~~~~.~~ .:.-_.`u ~ x p "' r~ x ... D D 1. Does the wetland have the potential to improve water quality? (see p.38) .'.. ~`'~-' s D L I Characteristics of surface water Flows out of [he wetland: Wetland is a depression with no surface water outlet points = 3 D Wetland has an intermittently flowing, OR highly constricted outlet points = 2 7 Wetland has an uneonstric[ed surface outlet points = t Wetland is flat and has no obvious outlet and or outlet is a ditch oints = I D 1.2 The soil 2 inches below the surface is clay, organic, or smells anoxic (hydrogen sulfide or rotten eggs) ~ YES points=4 0 NO oints = 0 D 7 S Characteristics of persistent vegetatio¢ (emergent, shrub, and/or forest class) Wetland has persistent, ungrazed, vegetation > = 95 % of area points = 5 D Wetland has persistent, ungrazed, vegetation > = 112 of area Pointe = 3 ~ Wetland has persistent, ungrazed vegetation > = 1/10 of area points = 1 Wetland has persistent, u¢grazed vegetation 4/10 of area points = 0 D1.4 Characteristics of seasonal ponding or inundation. This is [he area of the wetland that is ponded jar at least 2 months, but dries out D sometime during the year. Do no! count the area [hat is permanently ponded. Estimate area as the average condition 5 out of !0 yrs. ~ Area seasonally ponded is> % total area of wetland points = 4 Area seasonally ponded is > Y total area of wetland points= 2 Area seasonally ponded is <'/, total area of wetland points = 0 NOTE: See text or indicators o seasonal and ermanent inundation. D Total for D 1 Add the points in the boxes above 9 D D 2. Does the wetland have the opportunih [o improve water quality? (see p. 44) Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from [he wetland- Nate which of the fo[lowin conditions provide the sources of pollutants. - Grazing in the wetland or within 150 h Untreated stormwater discharges to wetland - Tilled fields or orchazds within 150 ft of wetland - A stream or culvert discharges imo wetland [ha[ drains developed areas, reside¢tial areas, farmed fields, roads, or clear-cut logging Residential, urban areas, golf courses are within 1 i0 ft of wetland multiplier Wetland is fed by groundwater high in phosphorus or nitrogen - Other -I YES multiplier is 2 O multiplier is 1 D TOTAL -Water Quality Funcfions Multiply the score from Dl by D2 9 Add score to table on Wetland Rating Form-western Washington 5 August 2004 1 1 t r Wetland name or number _2_ Depresstonal and Flats Wetlands ~ ~ ~ ~ ` -- Pmnts ~~ ~ HYDROLOGIC~JNCi`IOLVS Indtcators,that the wetland functions to reduce ~ ~ ~~ , - ,';flooding andsiream 8e adahon 2 _ h ~ -° ~l`¢` 's~'L`: - s °` ~ _ _ _ _ a ~~- - - ~ ,.~'.., : D 3. Does the wetland have the potential to reduce floodtng and eroston~ - (see .46 _ - _ - _ D D 3.1 Characteristics of surt$ce water flows out of the wetland Wetland has no surface water outlet points = 3 Wetland has an intermittently flowing, or highly consnicted outlet points = 2 ~ Wetland is flat and has no obvious outlet and/or outlet is a small ditch points = l Wetland has an unconstricted surface outlet Dints = 0 D D 3.? Depth of storage during wet periods Estimate the height of ponding above the bottom of the outlet. Marks of ponding are 3 ft or more above the surface points = 7 The wetland is a "headwatel' wetland" points = 5 0 Marks of ponding between 2 ft to <, ft from surface points = 5 Marks are a[ least 0.5 ft [o < 2 ft from surface points = 3 Wetland is flat but has small depressions on the surface that nap water points = ] Marks of ondin less than 0.5 fr Dints = 0 D D 3.3 Contribution of wetland to storage in the watershed Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland idselJ: The area of the basin is less than 10 times the area of wetland points = 5 The area of [he basin is 10 to 100 times the area of the wetland points = 3 3 The area of the basin is more than I00 times [he azea of the wetland points = 0 Wetland is in the FLATS class (basin=the wetland, b definition) Dints = 5 D Total for D 3 Add the points in the boxes above 5 D D 4. Does the wetland have the opportunity to reduce flooding and erosiop? (see p. 49 Answer YES if the wetland is in a location in [he watershed where the flood storage, or reduction in water velociTy, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate, tide gate, flap valve, reservoir etc. OR you estimate that more chap 90% of [he water in [he wetland is Crom groundwater. Nofe which of the following indicators of opportunity apply /Wetland is in a headwater of a river or stream that has flooding problems - Wetland drains to a mer or stream that has flooding problems multiplier - Wetland has no outlet and impounds surface mnofF water that might otherwise flow into a river or stream [ha[ has flooding problems 2 Other YES multiplier is 2 NO multiplier is 1 [~ TOTAL -Hydrologic Functions Multiply the score from D 3 by D A 10 Add score to table on p. I w enanc rcamrg r orm - western Washington August 2004 1 1 1 1 1 1 1 1 1 1 1 1 W etland name or number ~ These questtons apply to wet[ands~oal Gila`ss ` ~ : %~~Pomts es r ~`4 s~~ ~ ~ ~ 'HABITATi FLiNGTIONS„ Indtcators"that wetland fu tr t r m d m ' an a a ~ ~ ne ons o p _vt e% pot t t btt t ,~ ?= H 1. Does the wetland have the potepfial to provide habitat for many species? _ . H Ll Vegetation structure (seep. 72f _ ' Check the types of vegetation classes present (as defined by Cowardin)- if the class covers more than 10% of the area of the wetland or % acre . -Aquatic bed I _/_Etnergent plants -Scrub/shrub (areas where shrubs have>30% cover) _/ Forested (areas where trees have>30% cover) -Forested areas have 3 out of 5 strata (canopy, sub-canopy, shmbs, herhaceous, moss/mound-cover) Add the number of vegetatiott structures that qualify. If you have: 4 structures or more points=4 3 structures points=2 2 structures points=l 1 structure oints=0 H I.2. Hvdrooeriods (see p. 73) Check the types of water regimes (hydraperiods) present within the wetland. The water regime has to cover more than ! 0% of the wetland or ~/ acre to count. (see text for descriptions ofhydroperiodsJ l _Permane¢tly flooded or inundated 4 or more types present points = 3 /Seasonally flooded or inmdated _ 3 Types present points = 2 -Occasionally flooded or inundated 2 types present point = 1 /Saturated onl _ y 1 type present points = 0 _ Permanently flowing stream or river in, or adjacwtt To, Che wetland _ Seasonally flowing stream in, or adjacent tq the wetla¢d _ Lnke fringe wetland = 2 points Freshwater Tidal wetland=2 points H 1.3. Richness of Plant S e i s (see p. 75) Count the number of plan[ species u[ the wetland that cover a[ least l0 ftr. (d~erent patches of the same species can be combined to meet the size threshold) You do not hove to name the species. Do not include Eurasian dtilforl, reed canarygrass', purple lrnosestrife, Canadian Thistle If you counted: > l9 species points = 2 I List species below if you want [a: ~ - 19 species points = 1 ~ 5 species points = 0 WaH~od Ra9.... c,...., -o ~~ auY~LLSi LUU4 1 1 1 1 1 1 Weiland name or number _2_ H 1.4. [ntersoersion of habitats (see p. 76) Decide from the diagrams below whether interspersion between Cowardin vegetation classes (described in H 1. I ), or the classes and unvege[ated areas (can include open water or mudflats) is high, medium, tow, or none. o None = 0 p o ints Low = 1 point Moderate = 2 points ~ £ z ~ a +x-acv "~ IIff.~'~ R 'a~ ~ Ers-w. "`a°sr'.s'~ s<, x ~~ [ripanan braided channels] High =3 points NOTE: If you have four or more classes or three vegetation classes and open water the rating is always "high" H 1.5. Special Habitat Features' (see p. 7~ Checkthe habitat features that are present in the wetand The number of checks is the nwnber of paints you put into the nest column. _/Large, downed, woody debris within [he wetland (>4in. diameter and 6 ft long). _/_Stariding snags (diameter at the bonom > 4 inches) in the wetland -Undercut banks are present for at (east 6.6 ft (2m) and/or overhand ng vegetation extends at least 33 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (1 Om) Stable sleep banks of fine material that might be used by beaver or muskrat for denning (>30degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have nat yet (vrned grey brown) 3 At least'/. acre of thin-stemmed persistent vegetation or woody branches are present in areas [hat are permanently or seasonally inundated /structures for egg-laying by amphibians) _/_ [evasive plants cover less than 25°/o of the we8nnd area in each stratum of plants H 1. TOTAL Score - potential for providing habitat 6 Add the scores rpm column above Comments ' Wetland Rating Form-western Washington 14 August 2004 1 1 1 1 1 Wetland name or number _2_ H 2. Does the wetland have the opportunity to provide habitat for many species? ~: m ~ ~ H 2. L Buffers (see p. 80) Choose the description rhat best represends condition of buffer of wetland. The highest scoring criterion that applies to the wetland is to be used in the rating. See text for definition of "undisturbed. " /100 m (3308) of relatively undisturbed vegetated areas, rocky areas, or open water >95 % g of circumference. No structures are within the undisturbed part of buffer (relatively undisturbed also means no-grazing) Points = 5 - 100 m (330 h) of relatively undisturbed vegetated areas, rocky areas, or open water 50% circumference. ,. Points=4 - 50 m (170fr) of relatively uudisturbed vegetated areas, rocky areas, or open water>9~ circumference. Points = 4 - 100 m (3308) of relatively undisturbed vegetated areas, rocky areas, or open water> 25 circumference. - Points=3 - 50 m (1708) of relatively undisturbed vegetated areas, rocky areas, or open water for> 50% evcumference. Points = 3 If buffer does not meet any of [he criteria above No paved areas (except paved trails) or buildings within 25 m (808) of wetland> 95 circumference. Light to moderate grazing, or lawns are OK Paints = 2 - No paved areas or buildings within SOm of wetland for>50% circumference. Light to moderate grazing or lawns aze OK. Points = 2 Heavy grazing in buffer. Points = 1 Vegetated buffers are Qm wide (6.6ft) for more than 95% of the circumference (e.g. tilled fields, paving, basalt bedrock extend to edge of wetland Points = 0. - Buffer does not meet any of the criteria above. Points = 1 H 2.2 Corridors and Connections (see p. 87) H 2.2.1 [s the wetland part of a relatively uudisturbed and unbroken vegetated corridor (either riparian or upland) that is at least l50 fr wide, has at least 30% cover of shrubs, forest or native undisturbed prairie, that connects to esmaries, other wetlands or undisturbed uplands that are at least 250 acres ¢t size? (dams in riparian corridors, heavily used gravel 4 roads, paved road s, are considered breaks in (he corridor). ~ L p .,~ r 4 points (go to H 2.3) NO = go to H 2.2.2 H 2.2.2 is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian or upland) that is at least SOh wide, has at least 30% wver of shrubs or forest, and connects to estuaries, other wetlands or undisturbed uplands that are at Icast 25 acres in size? OR a Lake-fringe wetland, if it does not have an undisturbed corridor as in the question above? YES=2 points (ga to H~.3) N0=H2.2.3 H 2.23 Is the wetland: within 5 mi (8km) of a brackish or salt water estuary OR within 3 mi of a large field or pasture (>40 acres) OR within I mi of a lake greater than 20 acres? YES=1 oin[ N0=0 oints Wedand Rating Form-western Washington 15 Augus[2004 1 1 1 1 1 t Wetland name or number _> H 2S Near or adjacent to other prioriro habitats I'sted by WDFW (see p. 82) Which ofthe following priority habitats aze within 330ft (100m) of the wetland? (see textfnr a more detailed description ojthese priority habitats) _/Riparian: The azea adjacent to aquatic systems with flowing water [hat contains elements of bath aquatic and terrestrial ecosystems which mutually influence each other. _Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres). Cliffs: Greater than 7.6 m (25 ft) high and occurting below 5000 ft. Old-growth forests: (Old-growth west of Cascade crest) Stands of at (east 2 tree species, forming amulti-layered canopy with occasional small openings; with at least 20 trees/ha (8 trees/acre)> 81 cm (32 in) dbh or> 200 years of age. Mature Cores[s: Stands with average diameters exceeding 53 cm (2] in) dbh; crown cover may be less that l00%; crown cover may be less that 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than [hat found in old- growth; 80 - 200 years old west of the Cascade crest. 1 _Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where grasses and/or fortis form the natural climax plant community. Talus: Homogenous areas of rock rubble ranging th average size 0.15 - 2.0 m (OS - 65 ft), composed of basalt, andesite, and/or sedimentary rock, including riprnp slides and mine tailings. May be associated with cliffs. Caves: A naturally occurting cavity, recess, void, or system of in[ercormected passages Oregon white Oak: Woodlands Stands of pure oak or oak/conifer associations where canopy coverage of the oak component of the stand is 25%. Urban Natural Open Space: A priority species resides within or is adjacent to the open space and uses it for breeding and/or regular feeding; and/or the open space functions as a cortidor connecting other priority habitats, especially those that would otherwise be isolated; and/or the open space is an isolated remnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban development. Estuary/Es[aary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semicnelosed by land but with open, partly obstructed or sporadic awess to the open ocean, and in which ocean water is at least occasionally diluted by freshwater runoff from the land. The salinity may be periodically increased above that of the open ocean by evaporation. Along some low-energy coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward [o where ocean-derived salts measure less than O.Sppt. during [he period of average annual tow flow. Includes both estuaries and lagoons. Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and may also include the backshore and adjacent components of the terrestrial landscape (e.g., cliffs, snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and that contribute to shoreline function (e.g., sand/rock/log recruitment, nutrient contribution, erosion control). If wetland has 3 or more priority habitats= 4 points If wetland has 2 priority habitats = 3 points If wetland has 1 priority habitat = 1 point No habitats = 0 points Wetland Rating Conn-western Washington I6 August 2004 1 1 Wetland name or number _2_ H 2.4 Wetland Landscape (choose the one description of the landscape arozmd the wetland that best fits) (see p. 84) There are at least i other wetlands within'/ mile, and the connections' between them are relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating, but connections should NOT be bisected by paved roads, fill, fields, or other development. points = 5 5 The wetland is Lake-fringe on a lake with little disturbanw and there are 3 other lake-fringe wetlands within % mile points = 5 There are at least 3 other wetlands within `h mile, BUT the connections between them are disturbed points=3 The wetland is Lake-binge on a lake with disturbance and there are 3 other lake-fringe wetland within `F: mile points=3 There is at least I wetland within %x mile. points = 2 There are no wetlands within % mile. points = 0 H 2. TOTAL Score - opportunity for providing habitat 15 Add the scores in the column above Total Score for Habitat Functions -add the points for H 1, H 2 and record the result on 1 21 ' Wetland Rating Form-western Washin~on 17 August 2004 1 WETLAND 2 1 CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS ' Please determine if the wetland meets the attributes described below and circle the appropriate answers and Category. 1 1 Wetland+Type :Check off any criteria that apply fo the wetland Circle the Category whenzhe ~- approPri4tecriteria are met - - :Category -' 1 - SC A.0 Forested Wetlands (see p. 90) Does the wetland have at lease 1 acre of forest that meet one of these criteria for the Department of Pish and Wildlife's forests as priority habitats'? Ifyau answer yes you will still need to rate the wetland based on its junctions. Old-growth forests: (west of Cascade crest) Stands of at least two tree species, forming amulti-layered canopy with occasional small openings; with at leas[ 8 trees/acre (20 trees/hectaze) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 inches (81 cm) or more. NOTE: The criterion for dbh is based on measurements for upland forests. Two-hundred yeaz old trees in wetlands will ofen have a smaller dbh because their ~'owth rates are often slower. The DP W criterion is and 'OR" so old-growth forests do not necessarily have to have trees of this diameter. X Ma[ure forests: (west of the Cascade Crest) Stands where the largest trees aze 80 -200 years old OR have avernge diameters (dbh) exceeding 21 inches (53cm); crown cover may be less that 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth. YES = CateROrv I NO Cat. I ~ Ca'~tego~ry~ofetland based~ony,Specral Chaxactenshcs ~,~'~~-r 3~~~~ a.-- ~ ~ ' ` e ,~ zghest rahngt wetlandfall tnta; ser eral+cat gones~ar rkeaor yan ~, Choose tli ~-~p~ ~' ~^~' ~~'~~~~~ +~ ~, Vi' ' I ~ a ' ~ t NoApph hle ~ ~^~ ~'-°'~ °Yfy ~ ? s red° O a ll t e sve n er ca 4. _ ot i an = o r a e ypes 1 1 1 1 1 1 1 1 1 1 Wetland name or number _3,4,5,6_ DRAFT WETLAND RATING FORM-WESTERN WASHINGTON Name of wetland (if known): Purvis Proner[v Location: SEC: 23/24 TWNSHP: 17N RuGE: lE (Attach map with outline of wetland to rafing form) Person Rating Wetland: S Shxnewise Affiliation: The Coot Comnanv Date of Site Visit: March 2007 DRAFT SUMMARY OF RATING Category based on FUNCTIONS provided by wetland I II III / IV Category I = Score >=70 Score for Water Quality Functions 12 Category II =Score 51-69 Score for ({ydrologic Functions 24 Category III =Score 30-50 Score for Habitat Functions 14 Category IV =Score < 30 TOTAL f F ti 50 score or unc ons Category based on SPECLAL CITARACTERISTICS of wetland I_ II_ Does not Apply_/_ Final CalegOty (choose the "highest" category from above) Check the appropriate type and class of wetland being rated. Wetland'," e ~`~?~"",,''.~,~"" s ~~'~#..~Weitand~Class,. Estuarine De ressioual s Natural Herita eWetland Riverine Bo Lake-frin e Mature Forest Slo e Old Growth Forest Flats Coastal La ooh Freshwater Tidal Interdunal None of the above x 1 1 1 1 1 1 1 1 1 1 1 1 Wefland 7,d,i,6 jjj Depres~stonatan~l~FlaYs~Wet1 ~~s~~~,~~~~ ~;~'~ ~ *pomts A ~ 4WATER QUALTTX~Fi)NCT IONS,.`"~Indteators that the~wetlmmdfimchonsto~ a ~ r ~ ~-"~ F~~~ Watex »'tm ove ~ ~italrTy~~;.'~s~~~~ ~ra~~"-~~''*~ ~c~ - . . . ,....~. . D D 1. Does the wetland have the potential to improve water quality? (see p.3S) -~~~ e n D L 1 Characteristics of surface water flows out of the wetland: Wetland is a depression with no surface water outlet points=3 3 D Wetland has an intermittently flowing, OR highly constricted outlet points = 2 Wetland has an unconstric[ed surface outlet points = 1 Wetland is flat and has uo obvious outlet and or outlet is a ditch pints = 1 D 1.2 The soil 2 inches below the surface is clay, organic, or smells anoxic (hydrogen suede or rotten eggs) D YES points = 4 0 NO pints = 0 D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest class) Wetland has persistent, ungrazed, vegetation > = 9S % of azea points = 5 D Wetland has persistent, ungrazed, vege[tion> = IYL of area points = 3 g Wetland has persistent, ungrazed vegetation> = l/10 of area points = 1 Wetland has persistent, ungrazed-vegetation<l/10 of area points=0 D1.4 Characteristics of seasonal ponding or inundation. This is the area of the wetland that is ponded for at least ?months, bud dries out D sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition 5 out of 10 yrs. 4 Area seasonally ponded is>'/_ total area of wetland points = 4 Area seasonally ponded is> `/. total area of wetland points = 2 Area seasonally ponded is <'/ total area of wetland points = 0 NOTE: See text jot indicators o seasonal and ermanent inundation. D Total for D 1 Add the points in the boxes above 12 D D 2. Does the wedaud have the ouoortuni[v to improve water qualiTy? (see p. 44) Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland [hat would otherwise reduce water qualiTy in streams, lakes or groundwater downgradient from the wetland. ;Dote which of the jollowin conditions provide the sources afpollutants. Grazing in the wetland or within 150 ti - Untreated stormwater discharges to wetland - Tilled fields or orchards within ISO fr of wetland A stream or culvert discharges into wetland that drains developed areas, residential area, farmed fields, roads, or clear-cut logging - Residential, urban areas, golf courses are within I SO ft of wetland multiplier, - Wetland is ted by groundwater high in phosphorus or nitrogen - Other I_ YES multiplier is 2 NO multiplier is 1 D TOTAL -Water Quality Functions Multiply the score from D I by DZ 12 Add score to table an . 1 1 1 1 1 1 1 1 1 1 Wetland 3,4,5,6 D Depi•,essronal'andFlats Wetlands '; _ -~ Eomts~ - ~ . ;~ FIYDROLOGIC FUJVCTIONS Indreators that the wetland functions to ieducz r `' ~ ~ t fi ~= ~ Tloodm and sheani degradation ~ ~ ~ _ _ a D 3. Does the wetland have the potential to reduce floodtnd and crosron? (see .46) D D 3.1 Characteristics of surface water flows out of [he wetland Wetland has no surface water outlet points = 4 Wetland has an intermittently flowing or highly constricted outlet points = 2 q Wetland is flat and has no obvious outlet and/or outlet is a sma1L ditch points = 1 Wetland has an unconsMeted surface outlet oints=0 D D 3 ~ Depth of storage during we[ periods Estimate the height ofpond5ag above the bottom ojthe outlet Marks of pondine are 3 ft or more above the surface points = 7 The wetland is a `headwater' wetland" points = 5 Marks of ponding between 2 ft m <3 ft from surface points = 5 3 Marks are at least OS ft to < 2 ft from surface points = 3 Wetland is flat but has small depressions on the surface [hat trap water points= 1 Marks of ondin less tltan OS ft oints = 0 D D 3.3 Contribution of wetland to storage in the watershed Estimate the ratio of the area of upstream basin contribzaing surface water [o the wetdand [n the area of the wetland itself The area of the basin is less than 10 times the area of wetland points = 5 The area of the basin is 10 to 100 times Che area of the wetland point = 3 ~ The area of the basin is more than 100 times [he area oP Che wetland points = 0 Wetland is in the FLATS class (basin=the wetland, by definition) oints=5 D Total For D 3 Add the points in the boxes above I ____ 12 j D D 4. Does the wetland have the opportunity to reduce floodipg and erosion? ___~: ) (see p. 49 Answer YES ifthe wetland is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled 6y a structure such as flood gate, tide gate, flap valve, reservoir etc. OR you estimate that more than 90% of the water in [he wetland is from groundwater. Note which of the following n:dlcators of oppwTUnity apply. - Wetland is in a headwater of a river or stream that has flooding problems - Wetland drnins to a river or stream that has flooding probtents X Wetland has no outlet and impounds surface runoff water [hat might otherwise multiplier flow into a river or stream that has flooding problems - Other Q_ YE3 multiplier is 2 NO multiplier is Y ]~ TOTAL -Hydrologic Functions Multiply the score from D 3 by D 4 24 Add score to table on p. 1 1 1 1 1 euana ~ 4 ~ n These questzous apply tozwetlands oj'a[[ FZGM classes: ~~ ~~Potnts .~ ,i ,~ k d ~, ~ -~x~' tt~` ~T,,~ Six ~„ ~?-PABITAT FL7NCTIONS'.- Indicators that wetland=imtotions to,pxovtdo unport_ant habttat~'s~ ~~*=? H 1. Does the wetland have the potential to provide habitat for many species? ' ~ .. ! H l .1 V e~etation structure (see p. 72) . , _.a .. Check the types of vegetation classes present (as defined by Cowardfn)- if the class covers mare than 10% of the area of the wetland or % acre. -Aquatic bed -Emergent plants x_Semb/shrub (areas where shrubs have>30% cover) -Forested (areas where trees have >30% cover) -Forested areas have 3 out of 5 strata (canopy, suh-canopy, shrubs, herbaceous, 0 moss/ground-cover) Add the number ojvegettdion structures' that quay. fyou have: 4 strucrures or more points = 4 3 stmctures points = 2 2 structures points=l 1 structure oints = 0 H 1.2. Hvdro eriods (see p. 73) Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or % acre to count. (see text far descriptions of hydroperiods) -Permanently flooded or inundated 4 or more types present points = 3 0 _x_Seasonally flooded or inundated 3 Types present points = 2 -Occasionally flooded or inundated 2 types present point = 1 -Saturated only l type present points = 0 _ Permanently flowing stream or river in, or adjacent to, [he wetland _ Seasonally tlowing stream in, or adjacent to, the wetland Lade-fiirrge weltaad =2 points Freshwater tidal wetland = 2 points H 13. Richness of Plant Sce ~es (see p. 75) Count the number of plant species in the wetland that cover a[ least 10 ft'. (d~erettt patches ojthe sarne species can be combined to meet the size threshold) You do no[ have to name the species. Do not include Eurasian rLl(foil, reed canaryo ass, purple laosestrije, Canadian Thistle If you counted: > 19 species points = 2 0 List species below fyou want to: 5 - 19 species points = 1 <Sspecies points=0 1 1 1 1 1 1 Wetland 3,4,5,6 H 1.4. Interspersion of habitats (see p. 76) Decide from Ute diagrams below whether interspersion between Cowardin vegetation classes (described m H L I), or the classes and unvegetated areas (can include open water or madflats) is high, medium, low- or none. OQ None = 0 points Low = ~ t Moderate = 2 points ~~ m 5 b ` ~~L` ~ ~ ' Y L ~ +~. -.... ~ ,,vuE~,3 ~. F d ~, Yy, ;y ~` ~ 4. '~n,..s% 'w.y,. a 4 ~ ~ s~ sv ~.. [riparian braided channels] High =3 points NOTE: If you have four or more classes or three vegetation classes and open water [he ratino is always "hi H 1.5. Soecial Hab~ta[ Feamres~ (see p. 7n Check the habitat features that are present in the wetland The number of checks is the number of points you put into the next column. -Large, downed, woody debris within the wetland (>4in. diameter and 6 ft long). -Standing snags (diameter a[ the bottom > 4 inches) in [he wetland -Undercut banks are present for at least 6.6 h (2m) and/or overhanging vegetation extends at least 33 ft Qm) over a stream (or ditch) iq or contiguous with the wetland, for at least 33 ft I (LOm) -Stable steep banks of fine material that might be used by beaver or muskrat for denning (>30degree slope) OR signs of recent beaver activity are present (cu7 shrubs or trees that have not yet turned grey brown) _At least''/a acre of Utin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated. (structures far eggluying by amphihians) _x_ Invasive plants cover less than 25 % of the wetland area in each stratum of plants H 1. TOTAL Score- potential for providing habitat 1 ~ ~ Add the scores from codump above ~ i 1 1 1 1 1 1 Wetland 3 4 5 6 H 2. Does the wetland have the opportunity to provide habitat for many species? `~~~„ H 2.1 Buffers (see p. 80) Choose the description that best represents condition of buffer of wetland. The highest scoring criterion that applies to the wetland is to be used in the rating. See text for definition of "undisturbed " - 100 m (330ft) of relatively undisturbed vegetated areas, rocky areas, or open water >95% of circumference. No structures are within the undisturbed part of buffet (relatively undisturbed also means no-grazing) Points = 5 X 100 m (330 fr) of relatively undisturbed vegetated areas, rocky areas, or open water > 4 50% circumference. points=q 50 m (170ft) of relatively undisturbed vegetated areas, rocky areas, or opcn water>95 circumference. Points = 4 - 100 m (330fr) of relatively undisturbed vegetated areas, rocky areas, or open water> 25% circumference. Paints = 3 - 50 m (170ft) of relatively wrdisturbed vegetated areas, rocky areas, or open water for> 50% circumference. Points=3 TT buffer does tut meet any of the criteria above - No paved areas (except paved trails) or buildings within 25 m (80ft) of wetland > 95% cireumference. Light to moderate grazing, or lawns aze OK. Points= 2 - No paved areas or buildings within SOm of wetland for>50% circumference. Light to moderate grazing, or lawns are OK Points = 2 - Heavy grazing in buffer. Pnints = I - Vegetated buffers are a2m wide (6.6fr) for more than 95 % of the circumference (e.g. tilled fields, paving basal[ bedrock extend to edge of wetland Points = 0. - Buffer does not meet any of the criteria above. Points = 1 H 21 Condors and Connectio s (seep. 81) H 2.2.1 Is [he wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian or upland) that is at least l50 ft wide, has at least 30% cover of shrubs, forest or native undisturbed prairie, that connects to estuaries, other wetlands or undisturbed ' uplands that are at least 250 acres in size? (dams in riparian corridors, hean'7}+usedgrave! roads, paved rogds, are considered breaks in the corridor). 4 fE5=4 points (go to H2.3) NO=go eo H2.2.2 H 2.22 Is the wetland part of a relatively undisNrbed and unbroken vegetated wrridor (either riparian or upland) that is at least SOft wide, has at least 30% cover of shrubs or forest, and connects to estuaries, other wetlands or undisturbed uplands that are at least 25 acres in size? OR aLake-fringe wetland, if it does not have an undistmbed corridor as in the question above? YES=2 points (go to H23) N0=H2.23 H 22.3 Is the wetland: within 5 mi (8km) of a brackish or salt water estuary OR within 3 mi of a large field or pasture (>40 acres) OR within 1 mi of a lake greater than 20 acres? YES = I int NO = U ointss O 1 Wetland 3,4,5,6 H 2.3 Near or adiacent ro other o 'rv I bit Lz I' t d b WOF W (see p. R2) Which of the following priority habitats are within 330ft (100m) of the wetland? (see text far a more detailed description of these priority habitats) -Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and [ertestrial ecosystems which mutually influence each other. -Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres). -Cliffs: Greater than 7.6 m (25 ft) high and occurzing below 5000 h. _Old-growth forests: (Old-growth west of Cascade crest) Stands of at least 2 tree species, forming a multi-layered canopy with occasional small openings; with a[ least 20 trees/ha (8 trees/acre)> 81 cm (32 in) dbh or> 200 years of age. -Mature forests: Stands with average diameters exceeding 53 cm (21 in) dbh; crown cover may be less that 100%; crown cover may be less that 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old- g~owth; 80 - 200 years old west of the Cascade crest. -Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where gasses and/or fortis form the natural climax plant communiTy. Fl -Talus: Homogenous areas of rock rubble ranging in average size 0.15 - 2.0 m (0.5 - 65 fr), wmposed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. -Caves: A naturally occurting cavity, recess, void, or system of interconnected passages -Oregon white Oak: Woodlands Stands of pure oak or oak/conifer associations where canopy coverage of the oak component of the stand is 25%. -Urban Natural Open Space: A priority species resides within or is adjacent to the open space and uses it for breeding and/or regulaz feeding; and/or the open space functions as a corridor connecting other priority habi[nts, especially Chose [hat would otherwise be isolated; and/or the open space is an isolated remnant of natural habitat larger than 4 ha (l0 acres) and is surrounded by urban development. -Estuary/Estuary-like: Deepwa[er tidal habitats and adjacent tidal wetlands, usually semi-enclosed by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean water is at least occasionally diluted by freshwater runoff from the Land. The salinity may be periodically increased above that of the open ocean by evaporation. Along some tow-energy coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward to where ocean-derived salts measure less than QSppt. during the period of average annual low Flow. Includes both estuaries and lagoons. -Marine/Estnarine Shorelines: Shorelines include the intertidal and sub[idal zones of beaches, and may also include [he backshore and adjacent components of the terrestrial landscape (e.g., cliffs, snags; mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and that contribute CQ shoreline [unction (e.g., sand/rock/log recruitment, nutrient wntribution, erosion wntrol). If wetland has 3 or more prioriTy habitats = 4 points If wetland has 2 priority habifats=3 points If wetland has 1 priority habitat =1 point No habitats = 0 points 1 1 a-~ H 2.4 Wetland Landscape (choose the one descripfion of the landscape around the wetland that best fits) (see p. 84) There are a[ least 3 other wetlands within %z mile, and the connections between them are relatively undisturbed Qigh[ grazing between wetlands OK, as is lake shore with some boating, but comnections should NOT be bisected by paved roads, fill, fields, 5 or other development. points = 5 The wetland is Lake-fringe on a take with little disturbance and there are 3 other lake-fringe wetlands within % mile points = 5 There aze a[ least 3 other wetlands within''/z mite, BUT the connections between them are disturbed points = 3 _ The wetland is Lake-fringe on a lake with disturbance and there are 3 other lake-fringe wetland within % mile points =3 There is aT least 1 wetland within % mile. points =2 There are no wetlands within % mile. points = 0 H 2. TOTAL Score - oppomurity for providing habitat 13 Add the scores in the column above Total Score for Habitat Functions -add the points for H 1, H 2 and record the result on l l4 ' REFERENCES Cooke, Sarah Spear. Editor. 1997. A Field Guide to the Common Wetland Plants of Western Washington & Northwestern Oregon. Seattle Audubon Society, Seattle, WA. ' Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979, Reprinted 1992. Classification of Wetlands and Deepwater Habitats of [he United States. U.S. Fish and ' Wildlife Service, FWS/OBS-79/31, 103 pp. Environmental Laboratory. 1982 Corps of Engineers Wetland Delineation Manua[, Technical Report Y-87-1, U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS. Federal Interagency Committee for Wetland Delineation. 1989. Federal Manual for Identifying and Dehneating.lurisdictianal Wetlands. U.S. Army Corps of Engineers, U.S. Environmental Protection Agency, U.S. Fish and Wildlife Service, and U.S.D.A. Soil Conservation Service, Washington, D.C. Cooperative technical publication. 76 pp. ' plus appendices. Hitchcock, C.L, and A. Cronquist. 1976. Flora afthe Pacifrc Northwest. University of Washington Press, Seattle, WA. ' Kollmorgen Corporation . 1992. Munsell Soil Color Charts. Baltimore, MD. Reed, P.B. 7r. 1988. National List of Plam Species that Occur in Wetlands: National ' Summary. USFWS Biological report 88(24). 244 pp. Reed, P.B. Jr. 1993. Northwest Region 9, Supplement to Nafianal List ojPdant Species ' that Occur in Wedandr: USFWS. U.S. Army Corps of Engineers. 1982 Corps of Engineers Wetland Delineation Manual. ' Technical Report Y-87-1, together with clarification and interpretation guidelines as published by the USACOE, 1992. U.S. Department of Agriculture, Soil Conservation Service. 1990. Soil Survey of Thurston County, Washington. USDA Soil Conservation Service. 283 pp. ' U.S. Department of Agriculture. 1991. Hydric Sails of the United States. Washington Department of F,cology. 1997. Washington State Wetland Identification and ' Delineation Manual, Publication #96-94. Washington Department of Ecology. 2004. Washington State Wetlands Rating System ,for Western Washington Revised. Publication #04-06-025. ' U.S. Department of the Interior. Circa 1987 - 1989. National Wetlands Inventory Maps. ' Washington Department of Fisheries. 7975. A Ca[alog oJWashingmn Streams and Salmon Utilization, Volume I and Volwne 2. Yelm, City of. 2006. Yelm Municipal Code. Chapter 14.08 Critical Areas and Resource Lands. 1 1 1 1 1 1 1