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Wetlands & Critical Areas.pdfSkagit Wetlands & Critical Areas 320 East Fairhaven, Ste. 206 Burlington, WA 98233 (360) 391-9571 skagitwetlands@hotmail.com January 18, 2015 Wetland and Stream Delineation Casper Street Edmonds, WA 27032400214600 Section 24, Township 27 North, Range 03E t� w� 6 rrA Introduction During the summer of 2014, our firm conducted a wetland and stream delineation for the 1.3 acre parcel located on the 300 block of Casper Street, in Edmonds, Washington (Township 27 North, Range 04 East, Section 24; Parcel # 27032400214600). The purpose of the study was to determine the existence, extent, and regulatory status of any streams and wetlands affecting the subject property. We found a single wetland partially in the property as well as noted the presence of a small stream (Shell Creek) wholly offsite. The property is the site of a proposed single family residence development project where the existing vacant lot is to be subdivided into four individual parcels suitable for single family home construction. The property is in an area long developed and part of the historic residential nexus of the City of Edmonds. All public utilities are available to the property, as is access to a public thoroughfare. While the property is partially encumbered by critical areas and their associated buffers, a land division has been designed that ensures buildability by current standards. As such, no mitigation plan has been prepared at this time, solely a delineation report to address the boundaries of the wetlands and/or streams, the rating of said wetlands, and notation of the proper protection measures for preliminary review purposes and land development activities. However, due to the site conditions, there is ample opportunity on this property for buffer reductions via vegetative enhancement onsite for mitigation if it was needed or desired during the building process. Study Area The subject parcel is located in the City of Edmonds in an area of older homes on large lots. All of the adjoining parcels are presently developed, some on larger lots (in excess of 1 acre), some on smaller, more traditionally sized suburban property. Currently the property is a relic holly orchard (for lack of a better term), accessed off of Casper Street by an improved driveway. Roughly the western quarter of the property is slightly overgrown lawn and has the remains of what appears to be buildings of some sort, torn down some time ago. The majority of the remainder of the property is rows of holly trees over mown grass. The only natural vegetation is in a small portion of the northeast corner of the property, adjacent to the small creek and wetland area that make up the eastern fringe of the property. Overall the property is relatively level, sloping down only slightly from west to east, with the exception of the easternmost portion of the property, where the small creek flows in a shallow (3-4') depression. The creek flows south to north, entering a small wetland area that intrudes in minor fashion into the subject property, mainly in the form of a small drainage path along the subject properties northern property line. Methods Methodolouy The methodology for the wetland portion of this assessment is dictated by the 1987 Corps of Engineers Wetland Delineation Manual supplemented by the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (version 2.0), the Washington State Wetland Rating System for Western Washington (Department of Ecology 2004), the Cowardin Classification System, and that portion of the City of Edmonds City Code known as Chapter 23. Literature Review Prior to an onsite investigation, a literature review of available resources regarding this property was made with the following results: • The USDA Soil Survey of Snohomish County indicates no potential hydric soils onsite, or in the vicinity. 2 ® Review of available aerial photography shows no evidence of wetland presence in the immediate vicinity. ® Washington State Department of Natural Resources mapping shows stream presence onsite/adjacent. ® Mapping put forth by the Washington State Department of Fish and Wildlife indicates a stream onsite. ® Washington State Department of Fish and Wildlife mapping indicates documented use by salmonid fishes onsite or within the adjacent mapped stream. ® Mapping as available from the Washington State Department of Fish and Wildlife Priority Habitat and Species Program indicates no Priority Species or habitats of such have primary association directly with this property. Bald eagle nesting was noted roughly 350 feet south of the southernmost property line in 2012. ® The National Wetland Inventory mapping shows no wetland presence onsite. Subject property highlighted in yellow (general). Site Inspection Wetlands �'{( Fresh\valEr Em^.•gr�l �� rresnv�olEf farzs!zd�Stvub �,��'„ ESWonne anC ASar(nr Ceepwater FSWann¢an6 Na�,ne �reshrraler Fond pMNWpmry�� Laver cher We walked through the entire study area for a thorough visual coverage in early August of 2014 and mid January of 2015. We sampled the soils, vegetation, and for indicators of near -surface hydrology and wetland and upland conditions. We recorded the data at 2 representative sample plot locations (minimal wetlands onsite). The wetlands were located, boundaries flagged with sequentially -numbered (A1-8) pink flagging on surrounding vegetation. Wetland flagging merged to congruence with the stream OHWM at roughly flag A7, the OHWM and wetland edge was one and the same for a short distance before the wetland was no longer present. Flagging was installed prior to the property being surveyed, and while some delineation flagging was placed offsite slightly, this was unintentional. Offsite wetland areas were also inspected fully. While the wetland areas to the north were on private property, access via traverse of waters of the State and/or viewing from subject property gave a good representation of site conditions. While inspected, no intentional flagging or specific delineation was made offsite. The wetland flag locations were subsequently collected via professional land survey. The general surrounding conditions were also collected by the field survey crew. Such representations were deemed accurate (stream location), especially as the stream is quite well defined as a feature to the south. Wetland location and configuration is shown in the supplied displays (Insight Engineering, Inc.). Findings Wetlands A single wetland affects this property. From its beginning (southern point) as a depressional slice between the creek and the sloping bank, it widens into a fairly wide riparian wetland, and where the slope of the abutting uplands gentles to the north, has some small slope components as well as small drainage paths from upland sources (believed to be artificial drainage, not confirmed). Several hundred feet to the north of the subject property, the relief in the topography raises, and the wetland fades back into a narrow stream channel. The wetland, while small (1/3 to 1/2 acre via visual estimate), it does have both forested and shrub dominated components. The wetland was rated utilizing the most up to date form of the Washington State Department of Ecology publication # 04-06-025, the Washington State Wetland Rating System for Western Washington, as required by the City of Edmonds. While the small wetland had both slope and riverine HGM components, for rating purposes, a depressional designation was used with a final category based on functions being a Category III wetland with a combined score of 31. The rating breakdown is as follows: • Score for Water Quality Functions: 6 • Score for Hydrologic Functions: 8 • Score for Habitat Functions: 17 The wetland and its associated buffer serve best, in a functions and values consideration, as habitat support for the adjacent fish bearing stream; providing shading to promote a cooler and consistent riparian micro climate, forage for aquatic life both directly and indirectly, and contribution of woody debris necessary for salmonid shelter (among others). While water quality functions are contributed, as a landscape feature the function is rather low, as are hydrologic functions, but both are important considering the localized flooding and erosion known to persist in the area, as well as the long term development pressure and urbanized land use. While multiple site visits were made to the property, including a winter/wet season review, one hypothosis was not confirmed. It is believed that the portion of the wetland that is a narrow drainage swale between the subject property and the northern neighbor (wetland flags Al -3) is artificial in nature, being a point source for the outfall of a drainage structure. The drainage path gives strong indication to being excavated, and the hydrology is not what one would expect from a natural seep (of its small size). Directly upslope of where this drainage begins is a large, historic debris pile, mainly old clay brick. It is suspected that if this brick was removed, one would find an outfall of a drain system. This would render that portion of the wetland null as a regulated feature (flags Al -3). However, this theory has not been confirmed, and as such all of the area initially delineated should be considered regulated wetland at the present time. Assessment Factors 1) Soils The Soil Survey of Snohomish County Area, Washington published by the U.S.D.A. Soil Conservation Service (now the N.R.C.S.) lists the dominating soils of this property as two sepertate soil series, Alderwood gravelly sandy loam (urban land complex) in a swath across the northwestern portion of the property and Custer fine sandy loam throughout the remainder. Alderwood gravelly sandy loam is a moderately well drained soil formed under conifers in glacial deposits. Typically an Alderwood profile will have a surface layer and subsoil that is a dark brown, very dark brown, and grayish brown gravelly sandy loam above what is often a much consolidated substratum usually found at 24-40 inches in depth. Upland areas in the vicinity had a typical profile where undisturbed with the C horizon not observed with soil pits dug in excess of 16 inches. While mapped as a minority on the property, the majority observed more closely matched Alderwood soils rather than Custer. M Custer fine sandy loam is a poorly drained soil formed in sandy glacial outwash. Typically a Custer profile has an A (Ap) horizon to 9 inches of dark grayish brown fine sandy loam over a B (132 1) horizon to 16 inches of dark reddish brown and dark grayish brown ortstien (cemented sand layer) concretions mixed with olive grey fine sand (60 and 40 percent respectively). Custer soils are considered to have hydric properties (due to the ortstien) from the poorly drained nature when artificial drainage is not present. However, site inspection did not reflect strong ortstien, the majority of the property was consistent with an Alderwood series soil, a sandy, gravelly loam. Within the small wetland area onsite where data collection was possible, the immediate indicator used for delineation purposes was a strong hydrogen sulfide odor, although at the delineated edge, the soils met criteria F6, Redox dark, but failed to meet criteria on the upland side. . 5-Alderwood-Urban land complex 13- Custer fine sandy loam 2) Hydrology Hydrology indicators used for wetland determination were saturated soils and a high water table, with some small areas and/or evidence of very shallow inundation. While initial site review was in late summer, a follow up wet season review was consistent, with observations assumed to be at or very near the maximum groundwater levels, with no evidence of overbank flooding even though the creels level is very close to the surrounding topography of the adjacent drainage depression (although it is assumed to occur in a historic context). At no point is there any area of these wetlands that appears to have significant (greater than 4-5 inches depth of live storage) surface inundation at any time of the year and only in several very small, isolated pockets. Throughout the wetland areas, observed hydrology indicators were transferred visually via readily available topographical features in the offsite portions. Outside of the well defined drainageway/riparian zone, there was no natural positive wetland hydrology. Informal observation of dug soil pits throughout the property and site excavations showed no water table in excess of 24 inches of observed depth outside of the drainageway and associated slopes. 3) Vegetation The vegetation of the majority of the property is relic lawn/pasture grass with rows of planted holly trees, presumably historically grown for trimmings to be used for holiday ornamentation. While largely invasive/pioneering in nature, only the northeast corner of the property has any semblance of native vegetation. While wholly not inclusive, the upland portions of the property and those neighboring properties abutting the wetland and riparian corridor were observed to have dominating and notable populations of the following: Sambucus racemosa, Red elderberry, FACU Polystichum munitum, Sword fern, FACU Rubus ursinus, Trailing blackberry, FACU Ilex aquifolium, English holley, FACU Oemleria cerasiformis, Indian plum, FACU Rubus discolor, Himalayan blackberry FACU Athyrium filix femina, Lady fern FAC Rubus spectabalis, Salmonberry, FAC Thuja plicata, Western red cedar, FAC Alnus rubra, Red Alder, FAC Poplus trichocarpa, Black cottonwood, FAC Ranunculas repens, Creeping buttercup, FAC The wetlands were very sparse overall in the vegetation diversity as is often the case in urban environments, but included the following: Tolmiea menziesii, Piggy back plant, FAC Ranunculas repens, Creeping buttercup, FAC Rubus discolor, Himalayan blackberry FACU Athyrium filix femina, Lady fern FAC Rubus spectabalis, Salmonberry, FAC Alnus rubra, Red Alder, FAC Poplus trichocarpa, Black cottonwood, FAC Lysichiton americanum, Skunk cabbage, OBL RCA's A single fish and wildlife habitat conservation area affects this property directly, a small stream known as Shell Creek. Per available mapping (see below) this stream is a fish bearing creek with direct access to Puget Sound. Site observations confirmed this. This is a small stream, prime habitat for some select salmonids, especially for Coho salmon, but possibly for Steelhead as well as resident/anadromous Coastal cutthroat trout. Other species may have incidental use as well, but the size and habitat composition of this stream are such to preclude most others. Mapping by WDFW indicates a modeled presence of only Coho, an accurate assumption based upon the small size of both the stream and substrate. on The )uthwest. The stream is perennial, with a winter flow through the property being 4-5 feet in width, braided in some areas. The stream channel is composed mainly of fine gravels with some shallow pockets and smaller instream woody debris. There does not appear to be much overbank flooding (the bank is well defined), but the stream meanders through a wet depressional area, especially north of the subject property, notably lower (5ft+l-) than the surrounding topography, although the drainageway becomes less defined farther south as the stream flows through a more defined cut. Area Stream Type Mapping r z N i I f Extent of mapped streams (Snohomish County). Subject parcel at red arrow. This stream has been mapped and subsequently typed utilizing the stream typing criteria of WAC 222-16- 030, which for onsite determinations based upon physical characteristics is determined by the standards of WAC 222-16-031. This typing is accurate, being a Type F (Type 3) stream, providing fish habitat for at 7 least a portion of the year for anadromous salmonids, a fact confirmed by personal observation, statements by neighboring property owners, and per mapping/studies prepared at the behest of the City of Edmonds. While a small portion of the wetland fulfills riparian buffer functions on this property (more applicable on properties to the north), the majority of the riparian buffer on this property is the holly orchard, with only a very narrow fringe along the creek bank that is natural in any way. While holly trees are considered an invasive species, they do fulfill important functions in regards to their presence in a riparian buffer, most importantly as a source of shade, regulating stream temperature extremes directly and as a contributor to the micro climate of the riparian corridor as a whole. Regulatory Analysis The City of Edmonds City Code (ECC) 23.50.040(F) assigns a buffer of 50 feet for Category III wetlands. Fish bearing streams are afforded a 100 -foot buffer in the City of Edmonds when anadromous fish presence is confirmed per ECC 23.90.040(D). The city of Edmonds allows up to a 50% reduction for stream and wetland buffers with mitigation in the form of buffer averaging or vegetative enhancement being accepted. While no mitigation proposal is put forth at this time, the site lends its self well to mitigation, specifically in the form of vegative enhancement due to the unique characteristics of the present vegetative regime. Disclaimer This wetland delineation is based upon physical circumstances that are described in manuals and publications utilized by Federal, State, and Local agencies. The wetland delineation methodology used in this report is consistent with the routine on-site determination method prescribed by the 1987 Corps of Engineers Wetland Delineation Manual and by the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys and Coasts Regional Supplement. No guarantees are given that the delineation will concur precisely with those performed by agencies with jurisdiction or by other qualified professionals. This report is provided for the use of the specified recipient only and is not intended for use by other parties or purposes. Respectfully submitted, Matt Mahaffie Skagit Wetlands & Critical Areas, LLC M Cooke, S.S. 1997. A Field Guide to the Common Wetland Plants of Western Washington and Northwestern Oregon. Seattle Audubon Society, Seattle, WA. 417 pp. City of Edmonds. Municipal Code. Available online: http://www.codepublishing.com/wa/edmonds/ Cowardin, L. M. V. Carter, F.C. Golet, E.T LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S. Department of the Interior, Fish and Wildlife Service, Washington, D.C. Jamestown, ND: Northern Prairie Wildlife Research Center [Online]. Available: htip://www.npwrc.usg_s/gov/resource/1998/classwet/classwet.htm Mahaffie, M. 2014/2015. [personal observations] August 2 and January 15. Burlington, WA. Skagit Wetlands and Critical Areas. Pojar, J. and A. MacKinnon. 1994. Plants of the Pacific Northwest Coast; Washington, Oregon, British Columbia, and Alaska. Lone Pine Publishing, Auburn, WA. 528 pp. USDA Soil Conservation Service (NRC -National Resource Conservation Service). 1987. Soil Survey of Skagit County Washington. [Online]. Available: hLp://www.or.nres.usda.jzov/pnw soil/wa reports.html US Army Corps of Engineers. 1987. Wetlands Delineation Manual. [Online]. Available: hq://www.wetlands.com/reas/tlpge02e.htm USFWS (US Fish and Wildlife Service). 2014. National Wetlands Inventory Map. [Online]. Available: hftp://wetlandsfws.er.usgs.gov/wttnds/launch.html USFWS (US Fish and Wildlife Service). 1996. National Wetlands Inventory. National List of Vascular Plant Species that Occur in Wetlands: 1996. 206p. [Online]. Available: http://wetlandsfws.er.usgs/gov/Pubs9/wetlands plantlist96.pdf 0 Appendices Appendix A: Site Plan (Insight Engineering) Appendix B: Wetland Rating Form Appendix C: Representative Wetland Data Forms Appendix A: Site Plan (Insight Engineering) Y e � N ❑ � ye LA E �tlb� N o g9 A< Y e � N ❑ � ye LA E N Appendix B: Wetland Rating Form Wetland name or number WETLAND RATING FORM — WESTERN WASHINGTON Version 2 — Updated July 2006 to increase accuracy and reproducibility among users Updated Oct. 2008 with the new WDFW definitions for priority habitats Name of wetland (if known): Rated by:M Mahaffie Trained by Ecology? Yes M No SEC: 24 TOWNSHP:27 RNGE:03 Map of wetland unit: Figure Date of site visit: 8/22/14 Date of training:5/07 Is S/T/R in Appendix D? Yes ❑ No ❑ Estimated size SUMMARY OF RATING Category based on FUNCTIONS provided by wetland: ❑ I ❑ 1I Category I = Score > 70 Category II = Score 51 - 69 Category III = Score 30 — 50 Category IV = Score < 30 Score for Water Quality Functions Score for Hydrologic Functions Score for Habitat Functions TOTAL Score for Functions Category based on SPECIAL CHARACTERISTCS of Wetland ❑ I ❑ II Final Category (choose the "highest" category from above") Summary of basic information about the wetland unit. .Wetland Unit has Slecial `. Characteristics Riverine Estuarine ❑ Natural Heritage Wetland ❑ Bo ❑ Mature Forest ❑ Old Growth Forest ❑ Coastal Lagoon ❑ Interdunal ❑ None of the above ❑ De ressional ljl Riverine ❑ Lake -fringe ❑ Slope ❑ Flats ❑ Freshwater Tidal ❑ Check if unit has multiple HGM classes present ❑ IV i 8 17 31 ❑ Does not apply III71 Does the wetland being rated meet any of the criteria below? If you answer YES to any of the questions below you will A to nrntant tha —fl—t] nrrnrrlina to the raanlntinnc raanrdina the cnanial rharactPrictir.s fonnd in the wetland- -Checkli that Need Add>onal Protection:; st for Wetlands tt 'YES. NO in addition 0:the rotection recommended for it's'cate `or SP1. Has the wetland unit been documented as a habitat for any Federally listed Threatened or Endangered animal or plant species (TIE species)? ❑ For the purposes of this rating system, "documented" means the wetland is on the appropriate state or federal database. SP2. Has the wetland unit been documented as habitat for any State listed Threatened or Endangered animal species? For the purposes of this rating system, "documented" means the ❑ wetland is on the appropriate state database. Note: Wetlands with State listed plant species are categorized as Category 1 Natural Heritage Wetlands (see p. 19 of data form). SP3. Does the wetland unit contain individuals of Priority species listed by the WDFW or the state? ❑ SP4. Does the wetland unit have a local significance in addition to its functions? For example, the wetland has been identified in the Shoreline Master Program, the Critical Areas Ordinance, or ❑ in a local management plan as having special significance. To complete the next part of the data sheet you will need to determine the Hydrogeomorphic Class of the wetland being rated. The hydrogeomorphic classification groups wetlands in to those that function in similar ways. This simplifies die questions needed to answer how well the wetland functions. The Hydrogeomorphic Class of a wedand can be determined using the key below. Seep. 24 for more detailed instructions on classifying wetlands. Wetland Rating Form — Western Washington, Version 2 (7/06), updated with new WDFW definitions Oct. 2008 Page 1 of 12 Wetland name or number Classification of Vegetated Wetlands for Western Washington 1. Are the water levels in the entire unit usually controlled by tides (i.e. except during floods)? ® NO — go to 2 ❑ YES —the wetland class is Tidal Fringe If yes, is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? ❑ YES — Freshwater Tidal Fringe ❑ NO — Saltwater Tidal Fringe (Estuarine) Ifyour wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is a Saltwater Tidal Fringe it is rated as an Estuarine wetland. Wetlands that were call estuarine in the first and second editions of the rating system are called Salt Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were categorized separately in the earlier editions, and this separation is being kept in this revision. To maintain consistency between editions, the term "Estuarine" wetland is kept. Please note, however, that the characteristics that define Category I and H estuarine wetlands have changed (see p. ). 2. The entire wetland unit is flat and precipitation is only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. ❑ NO — go to 3 ❑ YES — The wetland class is Flats If your wetland can be classified as a "Flats" wetland, use the form for Depressional wetlands. 3. Does the entire wetland meet both of the following criteria? ❑ The vegetated part of the wetland is on the shores of a body of permanent open water (without any vegetation on the surface) where at least 20 acres (8ha) in size; ❑ At least 30% of the open water area is deeper than 6.6 (2 m)? ® NO — go to 4 ❑ YES — The wetland class is Lake -fringe (Lacustrine Fringe) 4. Does the entire wetland meet all of the following criteria? ® The wetland is on a slope (slope can be very gradual). ❑ The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may flow subsurface, as sheetflow, or in a swale without distinct banks. ❑ The water leaves the wetland without being impounded? NOTE: Surface water does not pond in these types of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 foot deep). ® NO — go to 5 ❑ YES — The wetland class is Slope 5. Does the entire wetland meet all of the following criteria? ® The unit is in a valley or stream channel where it gets inundated by overbank flooding from that stream or river. ❑ The overbank flooding occurs at least once every two years. NOTE: The riverine unit can contain depressions that are filled with water when the river is not flooding.. ® NO — go to 6 ❑ YES — The wetland class is Riverine 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time of the year. This means that any outlet, if present is higher than the interior of the wetland. ® NO — go to 7 ® YES — The wetland class is Depressional 7. Is the entire wetland located in a very flat area with no obvious depression and no overbank flooding. The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched, but has no obvious natural outlet. ® No — go to 8 ❑ YES — The wetland class is Depressional 8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less than 10% of the unit, classify the wetland using the class that represents more than 90% of the total area. HGM Classes=tivifhin th"etland unit bein "rated =HGMC_lass to: Ilse in_Rdtin + Riverine Riverine -Slope Slope + Depressional Depressional + Lake -fringe Lake -fringe -Slope + Riverine along stream within boundary De ressional -Depressional + Lake -fringe Depression I -Depressional Salt Water Tidal Fringe and any other class of freshwater wetland Treat as ESTUARINE under wetlands with special characteristics If you are unable still to determine which of the above criteria apply to your wetland, or you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Wetland Rating Form — Western Washington, Version 2 (7/06), updated with new WDFW definitions Oct. 2008 Page 2 of 12 Wetland name or number - � s WATER QUALITY FUNCTIONS — Indicators that wetland functions to improve water quality. (only 1 score per box) D 1 Does the wetland have the potential to improve water quality? (see A38) D 1.1 Characteristics of surface water flows out of the wetland: Figure❑ • Unit is a depression with no surface water leaving it no outletpoints = 3 • Unit has an intermittently flowing, OR highly constricted, permanently flowing outlet.... points = 2 • Unit has an unconstricted, or slightly constricted, surface outlet (permanently flowing)...points = 1 • Unit is a "flat" depression (Q.7 on key), or in the Flats class, with permanent surface 1 outflow and no obvious natural outlet and/or outlet is a man-made ditch ......................points = I ❑ ff ditch is not permanently flow in treat unit as "intermittent) owin Provide photo or drawing D 1.2 The soil 2 inches below the surface (or duff layer) is clay or organic (use NRCS definitions) 0 YES points = 4 NO points = 0 D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest Cowardin class): Figure ❑ • Wetland has persistent, ungrazed vegetation > = 95% of area..........................................points = 5 • Wetland has persistent, ungrazed vegetation > = 1/2 of area............................................points = 3 • Wetland has persistent, ungrazed vegetation > = 1/10 of area..........................................points = 1 • Wetland has persistent, ungrazed vegetation < 1/10 of area .............................................points = 0 3 Map of Cowardin vegetation classes D 1.4 Characteristics of seasonal ponding or inundation: This is the area of the ivetland that is ponded for at Figure least 2 months, but dries out sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition 5 out of 10 years. • Area seasonally ponded is > 1/2 total area of wetland ......................................................points 4 • Area seasonally ponded is > 1/4 total area of wetland ......................................................points = 2 — 0 • Area seasonally ponded is < 1/4 total area of wetland ......................................................points — 0 Map of H dro eriods Total for D i Add the 2oints in the boxes above 4 D 2 Does the wetland have the opportunity to improve water quality? _ _ (seep. 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 the wetland? Note which of the following conditions provide the sources of pollutants. A unit have pollutants corning fr-orn several sources, but any single source would qualify as opportunity. Grazing in the wetland or within 150 ft Untreated stormwater discharges to wetland Tilled fields or orchards within 150 ft. of wetland A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields, roads, or clear-cut logging Residential, urban areas, golf courses are within 150 ft. of wetland Wetland is fed by groundwater high in phosphorus or nitrogen Multiplier Other []YES multiplier is 2 ❑ No multiplier is 1 2 TOTAL — Water Qualitj Functions Multigly the score from D1 bX D2; then add score to table HYDROLOGIC FUNCTIONS - Indicators that wetland unit functions to reduce flooding and stream degradation. D 3 Does the wetland have the potential to reduce flooding and erosion? (see p46) D 3.1 Characteristics of surface water flows out of the wetland unit • Unit is a depression with no surface water leaving it (no outlet) ......................................points — 4 • Unit has an intermittently flowing, OR highly constricted permanently flowing outlet..... points = 2 • Unit is a "flat" depression (Q.7 on key) or in the Flats class, with permanent surface 0 outflow and no obvious natural outlet and/or outlet is a man-made ditch ......................points = I ❑ (If ditch is not permanently flowing treat unit as "intermittently flowing') • Unit has an unconstricted or slightly constricted surface outlet ermanentl owin ........ points = 0 D 3.2 Depth of storage during wet periods. Estimate the height of ponding above the bottom of the outlet. For units with no outlet measure fr•orn the surface of permanent water or deepest part (if dry). • Marks of ponding are 3 ft. or more above the surface or bottom of the outlet...................points = 7 • The wetland is a "headwater" wetland.............................................................................points — 5 0 • Marks of ponding between 2 ft. to < 3 ft. from surface or bottom of outlet ......................points = 5 • Marks are at least 0.5 ft. to < 2 ft. from surface or bottom of outlet .................................points = 3 • Wetland is flat (yes to Q.2 or Q.7 on key) but has small depressions on the surface that trap water .points = 1 • Marks of ponding less than 0.5 ft.................................................................................... points = 0 LJ D 3.3 Contribution of wetland unit 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 unit itself. • The area of the basin is less than 10 times the area of unit...............................................points = 5 3 • The area of the basin is 10 to 100 times the area of the unit.............................................points = 3 • The area of the basin is more than 100 times the area of the unit .....................................points = 0 • Entire unit is in the FLATS class..................................................................................... oints — 5 Total for D 3 Add the coints in the boxes above F 3 Wetland Rating Form — Western Washington, Version 2 (7/06), updated with new WDFW definitions Oct. 2008 Page 3 of 12 Wetland name or number D 4 Does the wetland have the opportunity to reduce flooding and erosion? (seep. 49) Answer YES if the unit 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 by a structure such as floodgate, tide gate, flap valve, reservoir etc. OR you estimate that more than 90% of the water in the wetland is from groundwater in areas where damaging groundwater flooding does not occur. Note 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 river or stream that has flooding problems Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or Multiplier stream that has flooding problems ❑ Other ❑ YES multiplier is 2 ❑ No multiplier is 1 2 TOTAL — Hydrologic Functions Multiply the score from D3 by D4; then add score to table Comments: Wetland Rating Form — Western Washington, Version 2 (7/06), updated with new WDFW definitions Oct. 2008 Page 4 of 12 Wetland name or number HABITAT FUNCTIONS —Indicators that wetland functions to provide important habitat: :(only 1 score per box) H 1 Does the wetland have the potential to provide habitat for many species? H 1.1 Vegetation structure (see P. 72): Check the types of vegetation classes present (as defined by Cowardin) — Size threshold for each class is Figure II 114 acre or more than 10% of the area if unit is smaller than 2.5 acres. Aquatic Bed Emergent plants Scrub/shrub (areas where shrubs have > 30% cover) Forested (areas where trees have > 30% cover) I he unit has a forested class check if: MtThe forested class has 3 out of 5 strata (canopy, sub -canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the forested polygon. Add the number of vegetation types that grralify. I ou have: Map of Cowardin vegetation classes 4 structures or more ....... potnts = 4 3 structures ..............points = 2 2 structures .................... oints = 1 1 structure................ poin s = 0 2 H 1.2 Hydroperiods (see p.73): Check the types of ivater regimes (hydroperiods) present within the ivetland. The ivater regime has to Figure ❑ cover more than 10% of the wetland or 1/4 acre to count (see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present points = 3 Seasonally flooded or inundated 3 or more types present points = 2 Occasionally flooded or inundated 2 types present points = 1 Saturated only 1 type present points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake -fringe wetland .....................= 2 points Freshwater tidal wetland .............= 2 points Map of hydroperiods 2 H 1.3 Richness of Plant Species (seep. 75): Count the number of plant species in the wetland that cover at least 10 ft' (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass, purple loosestrife, Canadian Thistle. If you counted: > 19 species .......................points = 2 ❑ 5 — 19 species ....................points = 1 List species below if you want to: < 5 species .........................points = 0 j H 1.4 Interspersion of Habitats (see p. 76): Decided from the diagrams below whether interspersion between Cowardin vegetation (described in H 1. 1), or the classes and unvegetated areas (can include open water or mudflats) is high, medium, low, or none. C:D (Q) ( Figure II None = 0 points Low = 1 point Moderate = 2 points �r� s =i 3 [ripanan braided channels] High = 3 points 2 Note: If you have 4 or more classes or 3 vegetation classes and open water, the rating is always "high". Use map of Cowardin classes. H 1.5 Special Habitat Features (seep. 77): Check the habitat features that are present in the wetland. The number of checks is the number of points ou put into the next column. Large, downed, woody debris within the wetland (> 4 in, diameter and 6 ft. long) Standing snags (diameter at the bottom > 4 inches) in the wetland Undercut banks are present for at least 6.6 ft. (2m) and/or overhanging vegetation extends at least 3.3 ft. (lm) over a stream (or ditch) in, or contiguous with the unit, for at least 33 ft. (10m) ❑ Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet turned grey/brown) ❑ At least 1/4 acre of thin -stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated (structures for egg -laying by amphibians) ❑ Invasive plants cover less than 25% of the wetland area in each stratum of plants NOTE: The 20% stated in early printings of the manual on page 78 is an error. 3 H 1 TOTAL Score — potential for providing habitat Add the points in the, above ®10_ J Wetland Rating Form — Western Washington, Version 2 (7/06), updated with new WDFW definitions Oct. 2008 Page 8 of 12 Wetland name or number H 2 Does the wetland have the oauortunity to provide habitat for many species? (only I score per box H 2.1 Buffers (see P. 80): Figure II Choose the description that best represents condition of buffer of wetland unit. The highest scoring criterion that applies to the wetland is to be used in the rating. See text for definition of "undisturbed". ❑ 100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water > 95% of circumference. No structures are within the undisturbed part of buffer (relatively undisturbed also means no grazing, no landscaping, no daily human use) ............. points = 5 ❑ 100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water > 50% circumference....................................................................................................... points = 4 ❑ 50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water > 95% circumference.................................................................................................... points = 4 ❑ 100m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water > 25% circumference....................................................................................................... points = 3 ❑ 50m (170 ft) of relatively undisturbed vegetated areas, rocky areas, or open water for > 50% circumferencepoints = 3 If buffer does not meet any of the criteria above: ❑ No paved areas (except paved trails) or buildings within 25m (80 ft) of wetland > 95% circumference. Light to moderate grazing or lawns are OK .......................................... points = 2 ® No paved areas of buildings within 50m of wetland for > 50% circumference. Light to moderate grazing or lawns are OK............................................................................ points = 2 ❑ Heavy grazing in buffer..................................................................................................... points = 1 ❑ Vegetated buffers are < 2m wide (6.6 ft) for more than 95% 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 2 Arial photo showing buffers H 2.2 Corridors and Connections (seep. 81) H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian or upland) that is at least 150 ft. wide, has at least a 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, heavily used gravel roads, paved roads, are considered breaks in the corridor). ❑ YES = 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 50 ft. 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 a Lake - fringe wetland, if it does not have an undisturbed corridor as in the question above? ❑ YES =2points (go toH2.3) ®NO=gotoH 2.2.3 H. 2.2.3 Is the wetland: • Within 5 mi (8km) of a brackish or salt water estuary OR • Within 3 miles of a large field or pasture (> 40 acres) OR ❑ YES = I point • Within 1 mile of a lake greater than 20 acres? ® NO = 0 points Comments: Wetland Rating Form — Western Washington, Version 2 (7/06), updated with new WDFW definitions Oct. 2008 Page 9 of 12 Wetland name or number Comments: Wetland Rating Form— Western Washington, Version 2 (7/06), updated with new WDFW definitions Oct. 2008 Page 10 of 12 H 2.3 Near or adjacent to other priority habitats listed by WDFW (see p. 82): (see new and complete descriptions of WDFW priority habitats, and the counties in which they can be found, in the PHS report http.//lvdfiv.wa.gov/habiphslist.hnn ) Which of the following priority habitats are within 330 ft. (100m) of the wetland unit? NOTE: the connections do not have to be relatively undisturbed. ❑ Aspen Stands: Pure or mixed stands of aspen greater than 0.4 ha (1 acre). ❑ Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (full descriptions in 97DFW PHS report p. 152). ❑ Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. ❑ Old-growth/Mature forests: (Old-growth west of Cascade crest) Stands of at least 2 tree species, forming a multi- 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 forests) Stands with average diameters exceeding 53 cm (21 in) dbh; 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; 80 - 200 years old west of the Cascade crest. ❑ Oregon white Oak: Woodlands Stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFR"PHS report p. 158). ® Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. ❑ Westside Prairies: Herbaceous, non -forested plant communities that can either take the form of a dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161). ® Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. ❑ Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. (full descriptions of habitats and the definition of relatively undisturbed are in WDFW report: pp. 167-169 and glossary in Appendix A). ❑ Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth in soils, rock, ice, or other geological formations and is large enough to contain a human. ❑ Cliffs: Greater than 7.6 in (25 ft) high and occurring below 5000 ft. ❑ Talus: Homogenous areas of rock rubble ranging in average size 0.15 - 2.0 m (0.5 - 6.5 ft), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. ❑ Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast height of> 51 cm (20 in) in western Washington and are > 2 in (6.5 ft) in height. Priority logs are > 30 cm (12 in) in diameter at the largest end, and > 6 in (20 ft) long. 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 3 Note: All vegetated wetlands are by definition a priority habitat but are not included in this list. Nearby wetlands are addressed in question H 2.4 H 2.4 Wetland Landscape: Choose the one description of the landscape around the ivetland that best fits (see p. 84) • There are at least 3 other wetlands within 1/2 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 ❑ . The wetland is Lake -fringe on a lake with little disturbance and there are 3 other lake -fringe wetlands within 1/2 mile................................................................................................points = 5 ❑ . There are at least 3 other wetlands within 1/2 mile, BUT the connections between them are disturbed........................................................................................................................ points = 3 ❑ . The wetland fringe on a lake with disturbance and there are 3 other lake -fringe wetlands within1/2 mile.............................................................................................................. points = 3 El • There is at least 1 wetland within 1/2 mile...................................................................... points = 2 ® 2 . There are no wetlands within 1/2 mile............................................................................ points = 0 ❑ ® H 2 TOTAL Score — opportunity for providing habitat Add the scores from H2.1, H2.2, H2.3, H2.4 _ F 7 I 10 TOTAL for H 1 from page 8 Total Score for Habitat Functions Add the points for H 1 and H 2; then record the result on p. 1 17 Comments: Wetland Rating Form— Western Washington, Version 2 (7/06), updated with new WDFW definitions Oct. 2008 Page 10 of 12 Wetland name or number CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Please determine if the wetland meets the attributes described below and circle the appropriate answers and Category. Wetland Type —.,Check off any criteria that apply to the wetland. Circle the Category when the appropriate criteria are, met., SC1 Estuarine wetlands? (see p.86) Does the wetland unit meet the following criteria for Estuarine wetlands? ❑ The dominant water regime is tidal, ❑ Vegetated, and ❑ With a salinity greater than 0.5 ppt. ❑ YES = Go to SC 1.1 ❑ NO SC 1.1 Is the wetland unit within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural Cat. 1 Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC ❑ 332-30-151? ❑ YES =Category I ❑ NO = go to SC 1.2 SC 1.2 Is the wetland at least 1 acre in size and meets at least two of the following conditions? ❑ YES =Category I ❑ NO = Category II Cat. I ❑ ❑ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. If the non-native Spartina spp,. are only species Cat. II that cover more than 10% of the wetland, then the wetland should be given a dual rating (I/I1). ❑ The area of Spartina would be rated a Category 11 while the relatively undisturbed upper marsh with native species would be a Category 1. Do not, however, exclude the area of Spartina in Dual determining the size threshold of 1 acre. ❑ At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un -grazed or Rating un -mowed grassland I/II ❑ The wetland has at least 2 of the following features: tidal channels, depressions with open water, or ❑ contiguous freshwater wetlands. SC2 Natural Heritage Wetlands (seep. 87) Natural Heritage wetlands have been identified by the Washington Natural Heritage Program/DNR as either high quality undisturbed wetlands or wetlands that support state Threatened, Endangered, or Sensitive plant species. SC 2.1 Is the wetland being rated in a Section/Township/Range that contains a natural heritage wetland? (This question is used to screen out most sites before you need to contact YVNHP/DNR.) ❑ S/T/R information from Appendix D ❑ or accessed from WNHP/DNR web site ❑ YES Contact WNHP/DNR (see p. 79) and go to SC 2.2 ❑ NO SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as a site with state threatened Cat I or endangered plant species? ❑ ❑ YES = Category I ❑ NO not a Heritage Wetland SC3 Bogs (seep. 87) Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below to identify if the wetland is a bog. If you answer yes you will still need to rate the wetland based on its function. 1. Does the unit have organic soil horizons (i.e. layers of organic soil), either peats or mucks, that compose 16 inches or more of the first 32 inches of soil profile? (See Appendix B for a field key to identify organic soils)? ❑ YES = go to question 3 ❑ NO = go to question 2 2. Does the wetland have organic soils, either peats or mucks that are less than 16 inches deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on a lake or pond? ❑ YES = go to question 3 ❑ NO = is not a bog for purpose of rating 3. Does the unit have more than 70% cover of mosses at ground level, AND other plants, if present, consist of the "bog" species listed in Table 3 as a significant component of the vegetation (more than 30% of the total shrub and herbaceous cover consists of species in Table 3)? ❑ YES = Is a bog for purpose of rating ❑ NO = go to question 4 NOTE: If you are uncertain about the extent of mosses in the understory you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16" deep. If the pH is less than 5.0 and the "bog" plant species in Table 3 are present, the wetland is a bog. 4. Is the unit forested (> 30% cover) with sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Englemann's spruce, or western white pine. WITH any of the species (or combination of species) on the bog species plant list in Table 3 as a significant component of the ground cover (> 30% coverage of the total shrub/herbaceous cover)? Cat. I ❑ YES = Category I ❑ NO = Is not a bog for purpose of rating ❑ Wetland Rating Form — Western Washington, Version 2 (7/06), updated with new WDFW definitions Oct. 2008 Page I I of 12 Wetland name or number SC4 Forested Wetlands (see p. 90) Does the wetland have at least 1 acre of forest that meet one of these criteria for the Department of Fish and Wildlife's forests as priority habitats? If you answer yes you will still need to rate the wetland based on its function. ❑ Old-growth forests: (west of Cascade Crest) Stands of at least two three species forming a multi- layered canopy with occasional small openings; with at least 8 trees/acre (20 trees/hectare) 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 year old trees in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW criterion is and "OR" so old-growth forests do not necessarily have to have trees of this diameter. ❑ Mature forests: (west of -the Cascade Crest) Stands where the largest trees are 80 — 200 years old OR have an average diameters (dbh) exceeding 21 inches (53 cm); crown cover may be less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth. Cat. I ❑ YES = Category I ❑ NO = not a forested wetland with special characteristics ❑ SC5 Wetlands in Coastal Lagoons (see p. 91) Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? ❑ The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks. ❑ The lagoon in which the wetland is located contains surface water that is saline or brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the bottom.) ❑ YES = Go to SC 5.1 ❑ NO not a wetland in a coastal lagoon SC 5.1 Does the wetland meet all of the following three conditions? ❑ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing) and has less than 20% cover of invasive plant species (see list of invasive species on p. 74). ❑ At least 3/4 of the landward edge of the wetland has a 100 ft. buffer of shrub, forest, or un -grazed or Cat. I un -mowed grassland. ❑ ❑ The wetland is larger than 1/10 acre (4350 square ft.) Cat. II ❑ YES = Category I ❑ NO =Category II ❑ SC6 Interdunal Wetlands (seep. 93) Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? ❑ YES = Go to SC 6.1 ❑ NO not an interdunal wetland for rating If you answer yes you will still need to rate the wetland based on its functions. In practical terms that means the following geographic areas: • Long Beach Peninsula -- lands west of SR 103 • Grayland-Westport -- -lands west of SR 105 • Ocean Shores-Copalis — lands west of SR 115 and SR 109 SC 6.1 Is the wetland one acre or larger, or is it in a mosaic of wetlands that is one acre or larger? Cat. 11 ❑ YES = Category II ❑ NO = go to SC 6.2 ❑ SC 6.2 Is the wetland between 0.1 and 1 acre, or is it in a mosaic of wetlands that is between 0.1 and 1 acre? Cat. III ❑ YES = Category III ❑ Category of wetland based on Special Characteristics Choose the "highest " rating if wetland falls into several categories, and record on p. 1. If you answered NO for all types enter "Not Applicable" on p. I Comments: Wetland Rating Form — Western Washington, Version 2 (7/06), updated with new WDFW definitions Oct. 2008 Page 12 of 12 Appendix C: Representative Wetland Data Forms WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys, and Coast Region Project Site: Casper StreetiSheii Creek City/County: Edmonds/Snohomish Sampling Date: 12-14-14 Applicant/Owner.. Echelbaroer State: WA Sampling Point: DPUn Investigator(s): M. Mahaffie Section, Township, Range: 24/27/03 Landform (hillslope, terrace, etc.): Drainage depression Local relief (concave, convex, none): concave Slope (%): 10 Subregion (LRR): a Let Long; Datum: Soil Map Unit Name: Alderwood/Custer NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes ® No ❑ (If no, explain in Remarks.) Are Vegetation ❑, Soil ❑, or Hydrology ❑, significantly disturbed? Are'Normal Circumstances' present? . Yes ® No ❑ Are Vegetation ❑, Soil ❑, or Hydrology ❑, naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site man showina samniina point locations. transects. important features. etc. Hydrophytic Vegetation Present? Yes ❑ No ED Absolute % Cover Hydric Soil Present? Yes ❑ No ® is the Sampled Areawithin a Wetland? Yes ❑ No Wetland Hydrology Present? Yes ❑ No Remarks: Datapoint taken 10'N of flag A6, 4' W of DPWet, on slope of drainage. VEGETATION – Use scientific names of plants Tree Stratum (Plot size: 306 Absolute % Cover Dominant Species? Indicator Status Dominance Test Worksheet: 1. BOPU 40 yes FAC Number of Dominant Species 2 (A) 2. THPL 20 yes FAC That Are OBL, FACW, or FAC: 3. ILAQ 40 yes FACU Total Number of Dominant 4. Species Across All Strata: (B) 50% = 20% = 50 = Total Cover Percent of Dominant Species Sapling/Shrub Stratum (Plot size: 5x10 That Are OBL, FACW, or FAC: 29 (A/B) Prevalence Index worksheet: 1. RUDI 5 yes FACU 2. ILAQ yes FACU Total % Cover of: Multiply by: 3. OSCE 10 yes FACU OBL species x1 = 4. FACW species x2 = 5. FAC species x3 = 50% = 20% = 20 = Total Cover FACU species x4 = Herb Stratum (Plot size: 3'R) UPL species x5 = 1. HEHE 50 ves FACU Column Totals: (A) (B) 2. RUUR 10 no FACU Prevalence Index = B/A = 3. Hydrophytic Vegetation Indicators: 4. ❑ 1 – Rapid Test for Hydrophytic Vegetation 5. ❑ 2 - Dominance Test is >50% 6. ❑ 3 - Prevalence Index is <3.0' 7 4 - Morphological Adaptations' (Provide supporting 11 g. data in Remarks or on a separate sheet) 9. ❑ 5 - Wetland Non -Vascular Plants' 10. ❑ Problematic Hydrophytic Vegetation' (Explain) 11. _ 'indicators of hydric soil and wetland hydrology must 50% = 20%= 50 — = Total Cover be present, unless disturbed or problematic. Woody Vine Stratum (Plot size: 2 Hydrophytic Vegetation Yes ® No 50% = 20% _ = Total Cover Present? % Bare Ground in Herb Stratum 50 Remarks: Vag (esp shrub) limited to upland swath. US Army Corps of Engineers Western Mountains, Valleys, and Coast –Version 2.0 Project Site: enu Samolino Point DPUn Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type' Loc? Texture Remarks 0=8 10YR 3/2 100 ❑ Surface Water (Al) sandy Iml 8+ 10YR412 100 ❑ gravelly Iml 'Type: C= Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. ?Location: PL=Pore Lining, M=Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Solis': ❑ Histosol (Al) ❑ Sandy Redox (S5) ❑ 2 cm Muck (A10) ❑ Histic Epipedon (A2) ❑ Stripped Matrix (S6) ❑ Red Parent Material (TF2) ❑ Black Histic (A3) ❑ Loamy Mucky Mineral (F1) (except MLRA 1) ❑ Very Shallow Dark Surface (TF1 2) ❑ Hydrogen Sulfide (A4) ❑ Loamy Gleyed Matrix (F2) ❑ Other (Explain in Remarks) ❑ Depleted Below Dark Surface (A11) ❑ Depleted Matrix (F3) Hydrogen Sulfide Odor (C1) ❑ Thick Dark Surface (Al2) ❑ Redox Dark Surface (F6) ❑ Drift Deposits (B3) ❑ Sandy Mucky Mineral (S1) ❑ Depleted Dark Surface (F7) 31ndicators of hydrophytic vegetation and Geomorphic Position (D2) ❑ Algal Mat or Crust (B4) wetland hydrology must be present, ❑ Sandy Gleyed Matrix (S4) ❑ Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): ❑ Recent Iron Reduction in Tilled Soils (C6) ❑ Type: ❑ Surface Soil Cracks (66) ❑ Stunted or Stresses Plants (131) (LRR A) Depth (inches): Raised Ant Mounds (D6) (LRR A) Hydric Soils Present? Yes ❑ No Remarks: ❑ Frost -Heave Hummocks (D7) uvnont nav Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) ❑ Surface Water (Al) ❑ Water -Stained Leaves (B9) ❑ Water -Stained Leaves (139) ❑ High Water Table (A2) (except MLRA 1, 2,4A, and 4B) (MLRA 1, 2,4A, and 46) ❑ Saturation (A3) ❑ Salt Crust (611) ❑ Drainage Patterns (610) ❑ Water Marks (B1) ❑ Aquatic Invertebrates (B13) ❑ Dry -Season Water Table (C2) ❑ Sediment Deposits (62) ❑ Hydrogen Sulfide Odor (C1) ❑ Saturation Visible on Aerial Imagery (C9) ❑ Drift Deposits (B3) ❑ Oxidized Rhizospheres along Living Roots (C3) ❑ Geomorphic Position (D2) ❑ Algal Mat or Crust (B4) ❑ Presence of Reduced Iron (C4) ❑ Shallow Aquitard (133) ❑ Iron Deposits (B5) ❑ Recent Iron Reduction in Tilled Soils (C6) ❑ FAC -Neutral Test (D5) ❑ Surface Soil Cracks (66) ❑ Stunted or Stresses Plants (131) (LRR A) ❑ Raised Ant Mounds (D6) (LRR A) ❑ Inundation Visible on Aerial Imagery (67) ❑ Other (Explain in Remarks) ❑ Frost -Heave Hummocks (D7) ❑ Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes ❑ - No ® Depth (inches): Water Table Present? Yes ® No ❑ Depth (inches): 14" Saturation Present? Yes ® No ❑ Depth (inches): 14" Wetiand Hydrology Present? Yes ❑ No (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: US Army Corps of Engineers Western Mountains, Valleys, and Coast —Version 2.0 WETLAND DETERMINATION DATA FORM — Western Mountains, Valleys, and Coast Region Project Site: Casper Street/Shell Creek City/County: Edmonds/Snohomish Sampling Date: 1-16-15 ApplicanttOwner. Echeibaroer State: WA Sampling Point: DPWet Investigator(s): M. Mahaffie Section, Township, Range:42 /27/03 Landform (hillslope, terrace, etc.): Drainaoe depression Local relief (concave, convex, none): concave Slope (%): 0 Subregion (LRR): a Let Long: Datum: Soil Map Unit Name: Alderwood/Custer NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes ® No ❑ (If no, explain in Remarks.) Are Vegetation ❑, Soil ❑, or Hydrology ❑, significantly disturbed? Are'Normal Circumstances' present? Yes ® No ❑ Are Vegetation ❑, Soil ❑, or Hydrology ❑, naturally problematic? (if needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features. etc. Hydrophytic Vegetation Present? Yes ® No ❑ Absolute % Cover Hydric Soil Present? Yes ® No ❑ Is the Sampled Area Yes ❑ No within a Wetland? Wetland Hydrology Present? Yes ® No ❑ Remarks: Datapoint taken 10'N of flag A6,on property line (only point of wetland for good representative data point on subject property). VFr:PTATInPJ – Ilan aniontifin namaa of nlanfa Tree Stratum (Plot size: 30r Absolute % Cover Dominant Species? Indicator Status Dominance Test Worksheet: 1. BOPU 30 Yes FAC Number of Dominant Species 4 (A) 2. THPL - That Are OBL, FACW, or FAC: 3. Total Number of Dominant 4 (B) 4 Species Across All Strata: 50% = 20% = 30 = Total Cover Percent of Dominant Species 100 (A/B) Sapling/Shrub Stratum (Plot size: That Are OBL, FACW, or FAC: Prevalence Index worksheet: 1. — 2. Total % Cover of: Multiply by: 3. _ OBL species x1 = 4. FACW species x2 = 5. FAC species x3 = 50% = 20% = 20 = Total Cover FACU species x4 = Herb Stratum (Plot size: 3R) UPL species x5 = 1 • R R 2-Q vL FAC Column Totals: (A) (B) 2. ATFI 25 ves FAC Prevalence Index = B/A = Hydrophytic Vegetation Indicators: 3. E TE TR no FACW 4. IR PS 10 yeses OBL ® 1 – Rapid Test for Hydrophytic Vegetation 5. ❑ 2 - Dominance Test is >50% 6. ❑ 3 - Prevalence Index is <3.0' 7. ❑ 4 - Morphological Adaptations' (Provide supporting 6 data in Remarks or on a separate sheet) 9. ❑ 5 - Wetiand Non -Vascular Plants' 10. ❑ Problematic Hydrophytic Vegetation' (Explain) 11. _ 50% = 20% = 50 =Total Cover 'Indicators of hydric soil and wetiand hydrology must be present, unless disturbed or problematic. Woody Vine Stratum (Plot size: 1. _ 2 Hydrophytic Vegetation Yes ® No 50% = 20% _ = Total Cover Present? % Bare Ground in Herb Stratum 50 Remarks: Veg plots limited to those rooted in wetland US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 Project Site: Samolino Point* DPWet Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth `Matrix Redox Features (inches) Color (moist) % Color (moist) % Type' Loc? Texture Remarks 0=3 10YR 100 ❑ Surface Water (Al) sandy iml 3-8 ❑ sand 8+ 10YR3/3 mixed, saoric w/25% sand 'Type: C= Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. ?Location: PL=Pore Lining, M=Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic, Hydric Soils3: ❑ Histosoi (Al) ❑ Sandy Redox (S5) ❑ 2 arts Muck (A10) ❑ Histic Epipedon (A2) ❑ Stripped Matrix (S6) ❑ Red Parent Material (TF2) ❑ Black Histic (A3) ❑ Loamy Mucky Mineral (F1) (except MLRA 1) ❑ Very Shallow Dark Surface (fF12) ® Hydrogen Sulfide (A4) ❑ Loamy Gleyed Matrix (F2) ❑ Other (Explain in Remarks) ❑ Depleted Below Dark Surface (A11) ❑ Depleted Matrix (F3) ❑ Drift Deposits (133) ❑ Thick Dark Surface (Al2) ❑ Redox Dark Surface (F6) ❑ ❑ Sandy Mucky Mineral (S1) ❑ Depleted Dark Surface (177) 3Indicators of hydrophytic vegetation and Presence of Reduced Iron (C4) ❑ wetland hydrology must be present, ❑ Sandy Gleyed Matrix (S4) ❑ Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): FAC -Neutral Test (D5) ❑ Surface Soil Cracks (36) ❑ Type: ❑ Raised Ant Mounds (D6) (LRR A) ❑ Inundation Visible on Aerial Imagery (67) Depth (inches): Other (Explain in Remarks) Hydric Soils Present? Yes ® No Remarks: stratified from past flood deposits ❑ Sparsely Vegetated Concave Surface (38) uvnonl nr_v Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) ❑ Surface Water (Al) ❑ Water -Stained Leaves (39) ❑ Water -Stained Leaves (39) ® High Water Table (A2) (except MLRA 1, 2,4A, and 4B) (MLRA 1, 2,4A, and 4B) ® Saturation (A3) ❑ Salt Crust (611) O Drainage Patterns (310) ❑ Water Marks (31) ❑ Aquatic Invertebrates (313) ❑ Dry -Season Water Table (C2) ❑ Sediment Deposits (32) ❑ Hydrogen Sulfide Odor (C1) ❑ Saturation Visible on Aerial Imagery (C9) ❑ Drift Deposits (133) ❑ Oxidized Rhizospheres along Living Roots (C3) ❑ Geomorphic Position (D2) ❑ Alga[ Mat or Crust (64) ❑ Presence of Reduced Iron (C4) ❑ Shallow Aquitard (133) ❑ Iron Deposits (65) ❑ Recent Iron Reduction in Tilled Soils (C6) ❑ FAC -Neutral Test (D5) ❑ Surface Soil Cracks (36) ❑ Stunted or Stresses Plants (D1) (LRR A) ❑ Raised Ant Mounds (D6) (LRR A) ❑ Inundation Visible on Aerial Imagery (67) ❑ Other (Explain in Remarks) ❑ Frost -Heave Hummocks (D7) ❑ Sparsely Vegetated Concave Surface (38) Field Observations: Surface Water Present? Yes ❑ No 0 Depth (inches): Water Table Present? Yes 0 No ❑ Depth (inches): 3" Saturation Present? Yes ® No ❑ Depth (inches): 0" Wetland Hydrology Present? Yes ® No ❑ (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: Water table present during January site visit at 3", was at 8' in August US Army Corps of Engineers Western Mountains, Valleys, and Coast —Version 2.0