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20-104332-UP-Wetland Delineation-11-06-2020-V2 750 Sixth Street South | Kirkland, WA 98033 P 425.822.5242 | f 425.827.8136 | watershedco.com January 6, 2020 Stan Afichuk 29328 1st Ave South Federal Way, WA 98003 via email: stan@greenbuilddev.com 206-708-0065 Re: Afichuk Property , Stream Delineation Report The Watershed Company Reference Number: 191123 Dear Stan: On December 11, 2019, Ecologists Logan Dougherty and Grace Brennan visited the 0.43-acre property located at 1XX S 293rd Street (parcel 7202500080) in Federal Way, Washington, to delineate jurisdictional streams. This letter summarizes the findings of the study and details applicable federal, state, and local regulations. The following documents are enclosed: • Delineation Sketch • Wetland Determination Data Forms • Wetland Rating Form and Figures Findings Summary One stream (Stream A) is located in the study area. Stream A is classified as a non-fish bearing, seasonal stream (Type Ns). The City of Federal Way requires a standard 35-foot buffer for Stream A. Wetland conditions associated with Stream A are confined to a very narrow corridor within the ravine containing Stream A. This narrow strip of wetland conditions, “Wetland A,” is part of the stream system and should be regulated as such. Study Area The study area for this project is defined as King County parcel 7202500080, totaling 0.43 acres. Delineation Report Afichuk January 2020 Page 2 Methods Public‐domain information on the subject properties was reviewed for this delineation study. Resources and review findings are presented in Table 1 of the “Findings” section of this letter. The study area was evaluated for streams based on the presence or absence of an ordinary high water mark (OHWM) as defined by Section 404 of the Clean Water Act, the Washington Administrative Code (WAC) 220‐660‐030, and the Revised Code of Washington (RCW) 90.58.030. Characterization of climatic conditions for precipitation in the Wetland Determination Data Forms were determined using the WETS table methodology (USDA, NRCS 2015). The “Seattle Tacoma Intl AP” station from 1981‐2010 was used as a source for precipitation data (http://agacis.rcc‐acis.org/). The WETS table methodology uses climate data from the three months prior to the site visit month to determine if normal conditions are present in the study area region. Findings The study area is within in the “Lower Puget Sound – DM/Fed Way” sub-basin of the Duwamish – Green Watershed (WRIA 9); Section 05 of Township 21 North, Range 04 East of the Public Land Survey System. A ravine extends northwest from the southeast corner of the study area, exiting the study area at its northern boundary. Stream A and Wetland A are located within this ravine. The study area totals 0.43 acres in size. Parcel 7202500070 (south) has been recently developed with a single-family home. Both the east and the west sides of the parcel slope downward toward Stream A and the ravine. The west side contains a small terrace with reed canarygrass and additional steep slopes that slope north towards Puget Sound. Reviewed public-domain information for the site is summarized below (Table 1). Delineation Report Afichuk January 2020 Page 3 Table 1. Summary of online mapping and inventory resources. Wetlands One wetland (Wetland A) was delineated and flagged in the study area. Wetland A is summarized in Table 2. Resource Summary USDA NRCS: Web Soil Survey Alderwood and Kitsap soils, very steep. USFWS: NWI Wetland Mapper No NWI features mapped on subject property. Tributary to Cold Creek mapped approx. 400 feet east of subject property. WDFW: PHS on the Web “Biodiversity areas and corridor” mapped east-adjacent to subject parcel. Fish-bearing stream (tributary to Cold Creek) mapped approx. 375 feet east of subject property. WDFW: SalmonScape Coho salmon and coastal cutthroat trout mapped in stream (tributary to Cold Creek) approx. 350 feet east of subject property. WA-DNR: Forest Practices Activity Mapping Tool Type U stream (tributary to Cold Creek) mapped approx. 350 feet east of subject property. King County iMap: Parcel mapped within erosion hazard area. Cold Creek mapped approx. 340 feet northeast of subject property. Federal Way Critical Area Maps: Parcel mapped within erosion hazard area and landslide hazard area. No stream mapped on subject property; Cold Creek mapped to the east. WETS Climatic Condition Normal. Delineation Report Afichuk January 2020 Page 4 Table 2. Wetland A Assessment Summary. WETLAND A – Assessment Summary Location: Along both sides of Stream A, extending through ravine that runs through site. WRIA / Sub-basin: Duwamish – Green Watershed (WRIA 9) / Lower Puget Sound – DM/Fed Way sub-basin Photo Caption. 2014 Western WA Ecology Rating: Category II Buffer Width and Buffer Setback: 150 ft. 5 ft. Wetland Size: Approx. 2,300 ft2 Cowardin Classification(s): Palustrine scrub- shrub, palustrine emergent HGM Classification(s): Riverine Wetland Data Sheet(s): DP-2 Upland Data Sheet (s): DP-3 Flag Color: Pink and black striped Flag Numbers: A-1 to A-9 Vegetation Tree stratum: Red alder Shrub stratum: Salmonberry, Himalayan blackberry Herb stratum: Giant horsetail, American speedwell Soils Soil survey: Alderwood and Kitsap soils, very steep Field data: Depleted matrix Hydrology Source: Overbank flooding, groundwater, precipitation Field data: High water table, saturation Wetland Functions Improving Water Quality Hydrologic Habitat Site Potential H M L H M L H M L Landscape Potential H M L H M L H M L Value H M L H M L H M L TOTAL Score Based on Ratings 6 8 6 20 Description and Comments Wetland A is a small riverine wetland that extends 2-3 feet from the OHWM of Stream A. The wetland is confined in the narrow ravine that Stream A is within. Some areas of the wetland extend slightly upslope from Stream A, gaining water from groundwater seeps. Delineation Report Afichuk January 2020 Page 5 Streams Stream A flows along a steep gradient through Wetland A, averaging three to four feet in width. The substrate is dominated by muck with intermittent sections of cobble. A portion of the stream flow, beginning at WMA-4L and WMA-4R, is carried in a black 12” diameter HDPE pipe that extends to the property line. This pipe appears some type of erosion control device whose origins are unknown but may be related to the downstream mobile home park property. The pipe does not carry all flow and an active stream channel persists adjacent to and beneath the piped section. Stream flow enters a catch basin and drain (Photo 1) at the northern property line. Both the stream and wetland appear to be supplemented by groundwater seeps, and at the time of the site visit water was flowing through the entirety of Stream A. Stream A is likely seasonally flowing and flows along a slope greater than twenty percent; therefore, Stream A does not contain suitable fish habitat. Non -wetlands Non-wetland areas are generally upslope (east and west) of Wetland A and do not meet all criteria for hydrophytic vegetation, hydric soils, or wetland hydrology. The east slope portion of the parcel is dominated by western hemlock and sword fern. The western portion of the parcel is dominated by reed canarygrass and Himalayan blackberry in the upper terrace and red alder, Osoberry, salmonberry, sword fern, and trailing blackberry in the lower slope area (Photos 2 and 3). Local Regulations Critical areas in Federal Way are regulated by Federal Way Revised Code (FWRC) Chapter 19.145, Environmentally Critical Areas. According to the code, wetlands are rated as one of four categories based on the Rating System. Under the Rating System, Wetland A was rated as Category II wetland with a habitat score of 6 points, and therefore requires a 150-foot buffer (FWRC 19.145.420[2]). However, due to the extremely narrow width of the wetland and direct association with Stream A, Wetland A should be regulated as part of the stream system and should not require a separate buffer. Stream buffers are determined based on the stream type classification. The Stream A/Wetland A system meets the criteria of a Type Ns water. Type Ns streams require a buffer of 35 feet (FWRC 19.145.270[1]). Delineation Report Afichuk January 2020 Page 6 Federal Way requires a 5-foot building setback from the edges of all critical area buffers (FWRC 19.145.160). Building setbacks may contain landscaping, building overhangs, and fences or railings six feet or less in height. Critical Area Buffer Reduction Federal Way allows for buffers of all categories of wetlands to be reduced by 25% if buffer enhancement is provided, resulting in no loss of buffer function (FWRC 19.45.445[6]). The Stream A buffer could thus be reduced to 26.25 feet. Typically, this entails the removal of invasive species, dense planting of native plants, and a 5-year monitoring period. Wetland and aquatic area buffers may also be modified through buffer averaging, in accordance with FWRC 19.145.440(5). Buffer averaging may be allowed if the total buffer area is equivalent to the area before averaging, the averaged buffer is contiguous with the standard buffer, and “the ecological structure and function of the buffer after averaging is equivalent to or greater than the structure and function before averaging. In some circumstances, buffer averaging may be accompanied by buffer enhancement in order to balance ecological functions. Averaged buffers cannot be reduced to less than 75% of the standard buffer width in any location. State and Federal Regulations Federal Agencies Most wetlands and streams are regulated by the Corps under Section 404 of the Clean Water Act. Any proposed filling or other direct impacts to Waters of the U.S., including wetlands (except isolated wetlands), would require notification and permits from the Corps. Wetland A would not be considered isolated. Unavoidable impacts to jurisdictional wetlands are typically required to be compensated through implementation of an approved mitigation plan. If activities requiring a Corps permits are proposed, a Joint Aquatic Resource Permit Application (JARPA) could be submitted to obtain authorization. Federally permitted actions that could affect endangered species may also require a biological assessment study and consultation with the U.S. Fish and Wildlife Service and/or the National Marine Fisheries Service. Compliance with the Endangered Species Act must be demonstrated for activities within jurisdictional wetlands and the 100‐year floodplain. Application for Corps permits may also require an individual 401 Water Quality Certification and Coastal Zone Management Consistency determination from Ecology and a cultural resource study in accordance with Section 106 of the National Historic Preservation Act. Delineation Report Afichuk January 2020 Page 7 Washington Department of Ecology (Ecology) Similar to the Corps, Ecology, under Section 401 of the Clean Water Act, is charged with reviewing, conditioning, and approving or denying certain federally permitted actions that result in discharges to state waters. However, Ecology review under the Clean Water Act would only become necessary if a Section 404 permit from the Corps was issued. However, Ecology also regulates wetlands, including isolated wetlands, under the Washington Pollution Prevention and Control Act, but only if direct wetland impacts are proposed. Therefore, if filling activities are avoided, authorization from Ecology would not be needed. If filling is proposed, a JARPA may be also be submitted to Ecology in order to obtain a Section 401 Water Quality Certification and Coastal Zone Management Consistency Determination. Ecology permits are either issued concurrently with the Corps permit or within 90 days following the Corps permit. In general, neither the Corps nor Ecology regulates wetland and stream buffers, unless direct impacts are proposed. When direct impacts are proposed, mitigated wetlands and streams may be required to employ buffers based on Corps and Ecology joint regulatory guidance. Washington Department of Fish a nd Wildlife (WDFW) Chapter 77.55 of the RCW (the Hydraulic Code) gives WDFW the authority to review, condition, and approve or deny “any construction activity that will use, divert, obstruct, or change the bed or flow of state waters.” This provision includes any in‐water work, installation of bridges, docks and other overwater structures and can sometimes include stormwater discharge to state waters. If a project meets regulatory requirements, WDFW will issue a Hydraulic Project Approval (HPA). Through issuance of an HPA, WDFW can also restrict activities to a particular timeframe. Work is typically restricted to late summer and early fall. However, WDFW has in the past allowed crossings that don’t involve in‐stream work to occur at any time during the year. Disclaimer The information contained in this letter is based on the application of technical guidelines currently accepted as the best available science and in conjunction with the manuals and criteria referenced above. All discussions, conclusions and recommendations reflect the best professional judgment of the author(s) and are based upon information available at the time the study was conducted. All work was completed within the constraints of budget, scope, and timing. The findings of this report are subject to verification and agreement by the appropriate Delineation Report Afichuk January 2020 Page 8 local, state and federal regulatory authorities. No other warranty, expressed or implied, is made. Please call if you have any questions or if we can provide you with any additional information. Sincerely, Logan Dougherty Grace Brennan Ecologist Ecologist Enclosures Delineation Report Afichuk January 2020 Page 9 References Anderson, P.S. et al. 2016. Determining the Ordinary High Water Mark for Shoreline Management Act Compliance in Washington State. (Publication #16-06-029). Olympia, WA: Shorelands and Environmental Assistance Program, Washington Department of Ecology. Department of Ecology (Ecology). 2018. July 2018 Modifications for Habitat Score Ranges. Modified from Wetland Guidance for CAO Updates, Western Washington Version. (Publication #16-06-001). Accessed 8/16/18: https://fortress.wa.gov/ecy/publications/parts/1606001part1.pdf. Environmental Laboratory. 1987. “Corps of Engineers Wetlands Delineation Manual,” Technical Report Y-87-1, U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS. Hruby, T. 2014. Washington State Wetland Rating System for Western Washington: 2014 Update. (Publication #14-06-029). Olympia, WA: Washington Department of Ecology. Lichvar, R.W. and S. M. McColley. 2008. A Guide to Ordinary High Water Mark (OHWM) Delineation for Non-Perennial Streams in the Western Mountains, Valleys, and Coast Region of the United States. ERDC/CRREL TR-14-13. Hanover, NH: U.S. Army Engineer Research and Development Center. U.S. Army Corps of Engineers. 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (Version 2.0). ed. J. S. Wakely, R. W. Lichvar, and C. V. Noble. ERDC/EL TR-10-3. Vicksburg, MS: U.S. Army Engineer Research and Development Center. U.S. Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS). 2015. National Engineering Handbook, Part 650 Engineering Field Handbook, Chapter 19 Hydrology Tools for Wetland Identification and Analysis. ed. R. A. Weber. 210-VI-NEH, Amend. 75. Washington, DC. Delineation Report Afichuk January 2020 Page 10 Site Photos Photo 1. Black HDPE pipe conveying some of Stream A’s flow into makeshift catch basin and drain. Photo 2. Terrace on western slope of subject parcel. Delineation Report Afichuk January 2020 Page 11 Photo 3. Lower slope of western area of subject parcel. Page 1 of 1 Delineation Sketch – Afichuk Property Site Address: 1XX S 293rd Street, Federal Way Prepared for: Stan Afichuk Parcel Number: 7202500080 TWC Ref. No.: 191123 Site Visit Date: 12/11/19 Note: Field sketch only. Features depicted are approximate and not to scale. Wetland boundary is marked with pink- and black-striped flags. Stream OHWM is marked with blue- and white-striped flags. Data points are marked with yellow- and black-striped flags. LEGEND Wetland Delineated Wetland Boundary Non-delineated Wetland Boundary Delineated Stream OHWM Non-delineated Stream OHWM Study Area Culvert Data Point (DP) Wetland A Flags A-1 to A-9 Connect A-9 to WMA-2L Stream A Flags WMA-1L to WMA-11L Flags WMA-1R to WMA-11R DP-1 DP-2 DP-3 DP-4 US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 DP - 1 Project/Site: 1XX S 293rd Street, Federal Way; parcel no. 7202500080 City/County: Federal Way Sampling date: 12/11/19 Applicant/Owner: S. Afichuk State: WA Sampling Point: DP-1 Investigator(s): L. Dougherty, G. Brennan Section, Township, Range: 05, 21N, 04E Landform (hillslope, terrace, etc): Hillslope Local relief (concave, convex, none): None Slope (%): 80 Subregion (LRR): A Lat: - Long: - Datum: - Soil Map Unit Name: Alderwood and Kitsap soils, very steep 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 on the site? ☒ 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 ☐ Is the Sampled Area within a Wetland? Yes ☐ No ☒ Hydric Soils Present? Yes ☒ No ☐ Wetland Hydrology Present? Yes ☐ No ☒ Remarks: Recorded in potential wetland area near NW property corner. Climatic conditions considered “normal” per WETS table methodology. VEGETATION – Use scientific names of plants. Tree Stratum (Plot size: 5-m diameter) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet: Number of Dominant Species that are OBL, FACW, or FAC: 4 (A) 1. Alnus rubra 70 Y FAC 2. Total Number of Dominant Species Across all Strata: 4 (B) 3. 4. Percent of Dominant Species that are OBL, FACW, or FAC: 100 (A/B) 70 = Total Cover Sapling/Shrub Stratum (Plot size: 3-m diameter) Prevalence Index worksheet: 1. Rubus spectabilis 60 Y FAC Total % Cover of: Multiply by: 2. OBL species x 1 = 3. FACW species x 2 = 4. FAC species x 3 = 5. FACU species x 4 = 60 = Total Cover UPL species x 5 = Herb Stratum (Plot size: 1-m diameter) Column Totals: (A) (B) 1. Scirpus microcarpus 50 Y OBL Prevalence Index = B/A = 2. Tolmiea menziesii 60 Y FAC 3. Hydrophytic Vegetation Indicators: 4. ☐ 1 – Rapid Test for Hydrophytic Vegetation 5. ☒ 2 – Dominance Test is > 50% 6. ☐ 3 – Prevalence Index is ≤ 3.01 7. ☐ 4 – Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 8. 9. ☐ 5 – Wetland Non-Vascular Plants1 10. ☐ Problematic Hydrophytic Vegetation1 (Explain) 11. 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 110 = Total Cover Woody Vine Stratum (Plot size: 3-m diameter) Hydrophytic Vegetation Present? Yes ☒ No ☐ 1. 2. 0 = Total Cover % Bare Ground in Herb Stratum: 0 Remarks: WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: DP-1 HYDROLOGY 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) % Type1 Loc2 Texture Remarks 0-8 2.5Y 3/1 100 Clay loam 8-15 2.5Y 5/2 65 7.5YR 5/8 35 C M, PL Clay loam 15-20 5Y 5/1 65 7.5YR 5/8 35 C M Clay loam 1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Loc: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: ☐ Histosol (A1) ☐ Sandy Redox (S5) ☐ 2cm 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 (TF12) ☐ Hydrogen Sulfide (A4) ☐ Loamy Gleyed Matrix (F2) ☐ Other (Explain in Remarks) ☐ Depleted Below Dark Surface (A11) ☒ Depleted Matrix (F3) ☐ Thick Dark Surface (A12) ☐ Redox Dark Surface (F6) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. ☐ Sandy Mucky Mineral (S1) ☐ Depleted Dark Surface (F7) ☐ Sandy Gleyed Matrix (S4) ☐ Redox Depressions (F8) Restrictive Layer (if present): Hydric soil present? Yes ☒ No ☐ Type: Depth (inches): Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) ☐ Surface water (A1) ☐ Water-Stained Leaves (except MLRA 1, 2, 4A & 4B) (B9) ☐ Water-Stained Leaves (B9) (MLRA 1, 2, 4A & 4B) ☐ High Water Table (A2) ☐ Saturation (A3) ☐ Salt Crust (B11) ☐ Drainage Patterns (B10) ☐ Water Marks (B1) ☐ Aquatic Invertebrates (B13) ☐ Dry-Season Water Table (C2) ☐ Sediment Deposits (B2) ☐ 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 (D3) ☐ Iron Deposits (B5) ☐ Recent Iron Reduction in Tilled Soils (C6) ☒ FAC-Neutral Test (D5) ☐ Surface Soil Cracks (B6) ☐ Stunted or Stressed Plants (D1) (LRR A) ☐ Raised Ant Mounds (D6) (LRR A) ☐ Inundation Visible on Aerial Imagery (B7) ☐ Other (explain in remarks) ☐ Frost-Heave Hummocks ☐ Sparsely Vegetated Concave Surface (B8) Field Observations: Wetland Hydrology Present? Yes ☐ No ☒ Surface Water Present? Yes ☐ No ☒ Depth (in): Water Table Present? Yes ☐ No ☒ Depth (in): Saturation Present? Yes ☐ No ☒ Depth (in): (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: Moist, not saturated. US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 DP - 2 Project/Site: 1XX S 293rd Street, Federal Way; parcel no. 7202500080 City/County: Federal Way Sampling date: 12/11/19 Applicant/Owner: S. Afichuk State: WA Sampling Point: DP-2 Investigator(s): L. Dougherty, G. Brennan Section, Township, Range: 05, 21N, 04E Landform (hillslope, terrace, etc): Hillslope Local relief (concave, convex, none): None Slope (%): 10 Subregion (LRR): A Lat: - Long: - Datum: - Soil Map Unit Name: Alderwood and Kitsap soils, very steep 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 on the site? ☒ 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 ☐ Is the Sampled Area within a Wetland? Yes ☒ No ☐ Hydric Soils Present? Yes ☒ No ☐ Wetland Hydrology Present? Yes ☒ No ☐ Remarks: Wetland A in-pit. Climatic conditions considered “normal” per WETS table methodology. VEGETATION – Use scientific names of plants. Tree Stratum (Plot size: 5-m diameter) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet: Number of Dominant Species that are OBL, FACW, or FAC: 3 (A) 1. Alnus rubra (rooted outside of unit) 70 - FAC 2. Total Number of Dominant Species Across all Strata: 3 (B) 3. 4. Percent of Dominant Species that are OBL, FACW, or FAC: 100 (A/B) 70 = Total Cover Sapling/Shrub Stratum (Plot size: 3-m diameter) Prevalence Index worksheet: 1. Rubus spectabilis 30 Y FAC Total % Cover of: Multiply by: 2. OBL species x 1 = 3. FACW species x 2 = 4. FAC species x 3 = 5. FACU species x 4 = 30 = Total Cover UPL species x 5 = Herb Stratum (Plot size: 1-m diameter) Column Totals: (A) (B) 1. Tolmiea menziesii 15 Y FAC Prevalence Index = B/A = 2. Athyrium cyclosorum (wilted fronds) 15 Y FAC 3. Hydrophytic Vegetation Indicators: 4. ☐ 1 – Rapid Test for Hydrophytic Vegetation 5. ☒ 2 – Dominance Test is > 50% 6. ☐ 3 – Prevalence Index is ≤ 3.01 7. ☐ 4 – Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 8. 9. ☐ 5 – Wetland Non-Vascular Plants1 10. ☐ Problematic Hydrophytic Vegetation1 (Explain) 11. 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 30 = Total Cover Woody Vine Stratum (Plot size: 3-m diameter) Hydrophytic Vegetation Present? Yes ☒ No ☐ 1. 2. 0 = Total Cover % Bare Ground in Herb Stratum: 70 Remarks: WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: DP-2 HYDROLOGY 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) % Type1 Loc2 Texture Remarks 0-9 10YR 4/1 95 7.5YR 3/4 5 C M Clay loam 9-16 10YR 3/1 98 7.5YR 3/4 2 C M Clay loam 1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Loc: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: ☐ Histosol (A1) ☐ Sandy Redox (S5) ☐ 2cm 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 (TF12) ☐ Hydrogen Sulfide (A4) ☐ Loamy Gleyed Matrix (F2) ☐ Other (Explain in Remarks) ☐ Depleted Below Dark Surface (A11) ☒ Depleted Matrix (F3) ☐ Thick Dark Surface (A12) ☐ Redox Dark Surface (F6) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. ☐ Sandy Mucky Mineral (S1) ☐ Depleted Dark Surface (F7) ☐ Sandy Gleyed Matrix (S4) ☐ Redox Depressions (F8) Restrictive Layer (if present): Hydric soil present? Yes ☒ No ☐ Type: Depth (inches): Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) ☐ Surface water (A1) ☐ Water-Stained Leaves (except MLRA 1, 2, 4A & 4B) (B9) ☐ Water-Stained Leaves (B9) (MLRA 1, 2, 4A & 4B) ☒ High Water Table (A2) ☒ Saturation (A3) ☐ Salt Crust (B11) ☐ Drainage Patterns (B10) ☐ Water Marks (B1) ☐ Aquatic Invertebrates (B13) ☐ Dry-Season Water Table (C2) ☐ Sediment Deposits (B2) ☐ 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 (D3) ☐ Iron Deposits (B5) ☐ Recent Iron Reduction in Tilled Soils (C6) ☐ FAC-Neutral Test (D5) ☐ Surface Soil Cracks (B6) ☐ Stunted or Stressed Plants (D1) (LRR A) ☐ Raised Ant Mounds (D6) (LRR A) ☐ Inundation Visible on Aerial Imagery (B7) ☐ Other (explain in remarks) ☐ Frost-Heave Hummocks ☐ Sparsely Vegetated Concave Surface (B8) Field Observations: Wetland Hydrology Present? Yes ☒ No ☐ Surface Water Present? Yes ☐ No ☒ Depth (in): Water Table Present? Yes ☒ No ☐ Depth (in): 10 in. Saturation Present? Yes ☒ No ☐ Depth (in): 0 in.* (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: *Rainfall during investigations make saturation depth difficult to determine. US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 DP - 3 Project/Site: 1XX S 293rd Street, Federal Way; parcel no. 7202500080 City/County: Federal Way Sampling date: 12/11/19 Applicant/Owner: S. Afichuk State: WA Sampling Point: DP-3 Investigator(s): L. Dougherty, G. Brennan Section, Township, Range: 05, 21N, 04E Landform (hillslope, terrace, etc): Hillslope Local relief (concave, convex, none): None Slope (%): 15 Subregion (LRR): A Lat: - Long: - Datum: - Soil Map Unit Name: Alderwood and Kitsap soils, very steep 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 on the site? ☒ 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 ☐ Is the Sampled Area within a Wetland? Yes ☐ No ☒ Hydric Soils Present? Yes ☐ No ☒ Wetland Hydrology Present? Yes ☐ No ☒ Remarks: Wetland A out-pit. Climatic conditions considered “normal” per WETS table methodology. VEGETATION – Use scientific names of plants. Tree Stratum (Plot size: 5-m diameter) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet: Number of Dominant Species that are OBL, FACW, or FAC: 2 (A) 1. Alnus rubra (rooted across stream) 80 - FAC 2. Total Number of Dominant Species Across all Strata: 3 (B) 3. 4. Percent of Dominant Species that are OBL, FACW, or FAC: 67 (A/B) 80 = Total Cover Sapling/Shrub Stratum (Plot size: 3-m diameter) Prevalence Index worksheet: 1. Rubus spectabilis 60 Y FAC Total % Cover of: Multiply by: 2. OBL species x 1 = 3. FACW species x 2 = 4. FAC species x 3 = 5. FACU species x 4 = 60 = Total Cover UPL species x 5 = Herb Stratum (Plot size: 1-m diameter) Column Totals: (A) (B) 1. Polystichum munitum 30 Y FACU Prevalence Index = B/A = 2. Tolmiea menziesii 20 Y FAC 3. Ranunculus repens 2 N FAC Hydrophytic Vegetation Indicators: 4. Rubus ursinus 2 N FACU ☐ 1 – Rapid Test for Hydrophytic Vegetation 5. ☒ 2 – Dominance Test is > 50% 6. ☐ 3 – Prevalence Index is ≤ 3.01 7. ☐ 4 – Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 8. 9. ☐ 5 – Wetland Non-Vascular Plants1 10. ☐ Problematic Hydrophytic Vegetation1 (Explain) 11. 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 54 = Total Cover Woody Vine Stratum (Plot size: 3-m diameter) Hydrophytic Vegetation Present? Yes ☒ No ☐ 1. 2. 0 = Total Cover % Bare Ground in Herb Stratum: 46 Remarks: WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: DP-3 HYDROLOGY 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) % Type1 Loc2 Texture Remarks 0-9 10YR 4/2 100 Clay loam 9-16 10YR 4/3 98 7.5YR 4/4 2 C M Clay loam 1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Loc: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: ☐ Histosol (A1) ☐ Sandy Redox (S5) ☐ 2cm 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 (TF12) ☐ Hydrogen Sulfide (A4) ☐ Loamy Gleyed Matrix (F2) ☐ Other (Explain in Remarks) ☐ Depleted Below Dark Surface (A11) ☐ Depleted Matrix (F3) ☐ Thick Dark Surface (A12) ☐ Redox Dark Surface (F6) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. ☐ Sandy Mucky Mineral (S1) ☐ Depleted Dark Surface (F7) ☐ Sandy Gleyed Matrix (S4) ☐ Redox Depressions (F8) Restrictive Layer (if present): Hydric soil present? Yes ☐ No ☒ Type: Depth (inches): Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) ☐ Surface water (A1) ☐ Water-Stained Leaves (except MLRA 1, 2, 4A & 4B) (B9) ☐ Water-Stained Leaves (B9) (MLRA 1, 2, 4A & 4B) ☐ High Water Table (A2) ☐ Saturation (A3) ☐ Salt Crust (B11) ☐ Drainage Patterns (B10) ☐ Water Marks (B1) ☐ Aquatic Invertebrates (B13) ☐ Dry-Season Water Table (C2) ☐ Sediment Deposits (B2) ☐ 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 (D3) ☐ Iron Deposits (B5) ☐ Recent Iron Reduction in Tilled Soils (C6) ☐ FAC-Neutral Test (D5) ☐ Surface Soil Cracks (B6) ☐ Stunted or Stressed Plants (D1) (LRR A) ☐ Raised Ant Mounds (D6) (LRR A) ☐ Inundation Visible on Aerial Imagery (B7) ☐ Other (explain in remarks) ☐ Frost-Heave Hummocks ☐ Sparsely Vegetated Concave Surface (B8) Field Observations: Wetland Hydrology Present? Yes ☐ No ☒ Surface Water Present? Yes ☐ No ☒ Depth (in): Water Table Present? Yes ☐ No ☒ Depth (in): Saturation Present? Yes ☐ No ☒ Depth (in): (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 DP - 4 Project/Site: 1XX S 293rd Street, Federal Way; parcel no. 7202500080 City/County: Federal Way Sampling date: 12/11/19 Applicant/Owner: S. Afichuk State: WA Sampling Point: DP-4 Investigator(s): L. Dougherty, G. Brennan Section, Township, Range: 05, 21N, 04E Landform (hillslope, terrace, etc): Terrace Local relief (concave, convex, none): None Slope (%): 5 Subregion (LRR): A Lat: - Long: - Datum: - Soil Map Unit Name: Alderwood and Kitsap soils, very steep 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 on the site? ☒ 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 ☐ Is the Sampled Area within a Wetland? Yes ☐ No ☒ Hydric Soils Present? Yes ☒ No ☐ Wetland Hydrology Present? Yes ☐ No ☒ Remarks: Terrace in hillslope. Climatic conditions considered “normal” per WETS table methodology. VEGETATION – Use scientific names of plants. Tree Stratum (Plot size: 5-m diameter) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet: Number of Dominant Species that are OBL, FACW, or FAC: 1 (A) 1. 2. Total Number of Dominant Species Across all Strata: 1 (B) 3. 4. Percent of Dominant Species that are OBL, FACW, or FAC: 100 (A/B) 0 = Total Cover Sapling/Shrub Stratum (Plot size: 3-m diameter) Prevalence Index worksheet: 1. Total % Cover of: Multiply by: 2. OBL species x 1 = 3. FACW species x 2 = 4. FAC species x 3 = 5. FACU species x 4 = 0 = Total Cover UPL species x 5 = Herb Stratum (Plot size: 1-m diameter) Column Totals: (A) (B) 1. Phalaris arundinacea 100 Y FACW Prevalence Index = B/A = 2. Urtica dioica 3 N FAC 3. Hydrophytic Vegetation Indicators: 4. Rubus armeniacus (too little to keep in shrub stratum) 2 N FAC ☐ 1 – Rapid Test for Hydrophytic Vegetation 5. ☒ 2 – Dominance Test is > 50% 6. ☐ 3 – Prevalence Index is ≤ 3.01 7. ☐ 4 – Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 8. 9. ☐ 5 – Wetland Non-Vascular Plants1 10. ☐ Problematic Hydrophytic Vegetation1 (Explain) 11. 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 105 = Total Cover Woody Vine Stratum (Plot size: 3-m diameter) Hydrophytic Vegetation Present? Yes ☒ No ☐ 1. 2. 0 = Total Cover % Bare Ground in Herb Stratum: 0 Remarks: WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: DP-4 HYDROLOGY 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) % Type1 Loc2 Texture Remarks 0-8 10YR 4/2 100 Loamy clay 8-16 5Y 4/2 98 7.5YR 4/6 2 C M Loamy clay 1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains . 2Loc: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: ☐ Histosol (A1) ☐ Sandy Redox (S5) ☐ 2cm 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 (TF12) ☐ Hydrogen Sulfide (A4) ☐ Loamy Gleyed Matrix (F2) ☐ Other (Explain in Remarks) ☐ Depleted Below Dark Surface (A11) ☒ Depleted Matrix (F3) ☐ Thick Dark Surface (A12) ☐ Redox Dark Surface (F6) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. ☐ Sandy Mucky Mineral (S1) ☐ Depleted Dark Surface (F7) ☐ Sandy Gleyed Matrix (S4) ☐ Redox Depressions (F8) Restrictive Layer (if present): Hydric soil present? Yes ☒ No ☐ Type: Depth (inches): Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) ☐ Surface water (A1) ☐ Water-Stained Leaves (except MLRA 1, 2, 4A & 4B) (B9) ☐ Water-Stained Leaves (B9) (MLRA 1, 2, 4A & 4B) ☐ High Water Table (A2) ☐ Saturation (A3) ☐ Salt Crust (B11) ☐ Drainage Patterns (B10) ☐ Water Marks (B1) ☐ Aquatic Invertebrates (B13) ☐ Dry-Season Water Table (C2) ☐ Sediment Deposits (B2) ☐ 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 (D3) ☐ Iron Deposits (B5) ☐ Recent Iron Reduction in Tilled Soils (C6) ☐ FAC-Neutral Test (D5) ☐ Surface Soil Cracks (B6) ☐ Stunted or Stressed Plants (D1) (LRR A) ☐ Raised Ant Mounds (D6) (LRR A) ☐ Inundation Visible on Aerial Imagery (B7) ☐ Other (explain in remarks) ☐ Frost-Heave Hummocks ☐ Sparsely Vegetated Concave Surface (B8) Field Observations: Wetland Hydrology Present? Yes ☐ No ☒ Surface Water Present? Yes ☐ No ☒ Depth (in): Water Table Present? Yes ☐ No ☒ Depth (in): Saturation Present? Yes ☐ No ☒ Depth (in): (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: Moist but not saturated. Wetland name or number: Wetland A Wetland Rating System for Western WA: 2014 Update Rating Form – Effective January 1, 2015 1 RATING SUMMARY – Western Washington Name of wetland (or ID #):Wetland A Date of site visit: 12/11/2019 Rated by: L. Dougherty, G. Brennan Trained by Ecology? ☒Y ☐N Date of training: 10/2018, 10/2019 HGM Class used for rating: Riverine Wetland has multiple HGM classes? ☒Y ☐N NOTE: Form is not complete without the figures requested (figures can be combined). Source of base aerial photo/map: Google Earth OVERALL WETLAND CATEGORY (based on functions ☒ or special characteristics ☐) 1. Category of wetland based on FUNCTIONS ☐ Category I – Total score = 23 - 27 ☒ Category II – Total score = 20 - 22 ☐ Category III – Total score = 16 - 19 ☐ Category IV – Total score = 9 - 15 FUNCTION Improving Water Quality Hydrologic Habitat Circle the appropriate ratings Site Potential H M L H M L H M L Landscape Potential H M L H M L H M L Value H M L H M L H M L TOTAL Score Based on Ratings 6 8 6 20 2. Category based on SPECIAL CHARACTERISTICS of wetland CHARACTERISTIC CATEGORY Estuarine I II Wetland of High Conservation Value I Bog I Mature Forest I Old Growth Forest I Coastal Lagoon I II Interdunal I II III IV None of the above ☒ Score for each function based on three ratings (order of ratings is not important) 9 = H,H,H 8 = H,H,M 7 = H,H,L 7 = H,M,M 6 = H,M,L 6 = M,M,M 5 = H,L,L 5 = M,M,L 4 = M,L,L 3 = L,L,L Wetland name or number: Wetland A Wetland Rating System for Western WA: 2014 Update Rating Form – Effective January 1, 2015 2 Maps and figures required to answer questions correctly for Western Washington Riverine Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 1 Hydroperiods H 1.2 2 Ponded depressions R 1.1 2 Boundary of area within 150 ft of the wetland (can be added to another figure) R 2.4 2 Plant cover of trees, shrubs, and herbaceous plants R 1.2, R 4.2 3 Width of unit vs. width of stream (can be added to another figure) R 4.1 2 Map of the contributing basin R 2.2, R 2.3, R 5.2 4 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 5 Screen capture of map of 303(d) listed waters in basin (from Ecology website) R 3.1 6 Screen capture of list of TMDLs for WRIA in which unit is found (from web) R 3.2, R 3.3 7 Wetland name or number: Wetland A Wetland Rating System for Western WA: 2014 Update Rating Form – Effective January 1, 2015 3 HGM Classification of Wetlands in Western Washington 1. Are the water levels in the entire unit usually controlled by tides except during floods? ☒NO – go to 2 ☐YES – the wetland class is Tidal Fringe – go to 1.1 1.1 Is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? NO – Saltwater Tidal Fringe (Estuarine) YES – Freshwater Tidal Fringe If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. 2. The entire wetland unit is flat and precipitation is the 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 unit meet all of the following criteria? ☐The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; ☐At least 30% of the open water area is deeper than 6.6 ft (2 m). ☒NO – go to 4 ☐YES – The wetland class is Lake Fringe (Lacustrine Fringe) 4. Does the entire wetland unit 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. ☒NO – go to 5 ☐YES – The wetland class is Slope NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 ft deep). 5. Does the entire wetland unit 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 2 years. For questions 1-7, the criteria described must apply to the entire unit being rated. If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8. Wetland name or number: Wetland A Wetland Rating System for Western WA: 2014 Update Rating Form – Effective January 1, 2015 4 ☐NO – go to 6 ☒YES – The wetland class is Riverine NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during 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 unit 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 the wetland unit being scored. 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 HGM 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 within the wetland unit being rated HGM class to use in rating Slope + Riverine Riverine Slope + Depressional Depressional Slope + Lake Fringe Lake Fringe Depressional + Riverine along stream within boundary of depression Depressional Depressional + Lake Fringe Depressional Riverine + Lake Fringe Riverine Salt Water Tidal Fringe and any other class of freshwater wetland Treat as ESTUARINE If you are still unable to determine which of the above criteria apply to your wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Wetland name or number: Wetland A Wetland Rating System for Western WA: 2014 Update Rating Form – Effective January 1, 2015 5 RIVERINE AND FRESHWATER TIDAL FRINGE WETLANDS Water Quality Functions - Indicators that the site functions to improve water quality R 1.0. Does the site have the potential to improve water quality? R 1.1. Area of surface depressions within the Riverine wetland that can trap sediments during a flooding event: ☐ Depressions cover > 3/4 area of wetland points = 8 4 ☐ Depressions cover > 1/2 area of wetland points = 4 ☐ Depressions present but cover < 1/2 area of wetland points = 2 ☒ No depressions present points = 0 0 R 1.2. Structure of plants in the wetland (areas with >90% cover at person height, not Cowardin classes) ☐ Trees or shrubs > 2/3 area of the wetland points = 8 ☐ Trees or shrubs > 1/3 area of the wetland points = 6 ☐ Herbaceous plants (> 6 in high) > 2/3 area of the wetland points = 6 ☐ Herbaceous plants (> 6 in high) > 1/3 area of the wetland points = 3 ☒ Trees, shrubs, and ungrazed herbaceous < 1/3 area of the wetland points = 0 0 Total for R 1 Add the points in the boxes above 0 Rating of Site Potential If score is: ☐12-16 = H ☐6-11 = M ☒0-5 = L Record the rating on the first page R 2.0. Does the landscape have the potential to support the water quality function of the site? R 2.1. Is the wetland within an incorporated city or within its UGA? ☒Yes = 2 ☐No = 0 2 R 2.2. Does the contributing basin to the wetland include a UGA or incorporated area? ☒Yes = 1 ☐No = 0 1 R 2.3. Does at least 10% of the contributing basin contain tilled fields, pastures, or forests that have been clearcut within the last 5 years? ☐Yes = 1 ☒No = 0 0 R 2.4. Is > 10% of the area within 150 ft of the wetland in land uses that generate pollutants? ☒Yes = 1 ☐No = 0 1 R 2.5. Are there other sources of pollutants coming into the wetland that are not listed in questions R 2.1-R 2.4 Other sources: Click here to enter text. ☐Yes = 1 ☒No = 0 0 Total for R 2 Add the points in the boxes above 4 Rating of Landscape Potential If score is: ☒3-6 = H ☐1 or 2 = M ☐0 = L Record the rating on the first page R 3.0. Is the water quality improvement provided by the site valuable to society? R 3.1. Is the wetland along a stream or river that is on the 303(d) list or on a tributary that drains to one within 1 mi? ☒Yes = 1 ☐No = 0 1 R 3.2. Is the wetland along a stream or river that has TMDL limits for nutrients, toxics, or pathogens? ☐Yes = 1 ☒No = 0 0 R 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality? (Answer YES if there is a TMDL for the drainage in which the unit is found) ☐Yes = 2 ☒No = 0 0 Total for R 3 Add the points in the boxes above 1 Rating of Value If score is: ☐2-4 = H ☒1 = M ☐0 = L Record the rating on the first page Wetland name or number: Wetland A Wetland Rating System for Western WA: 2014 Update Rating Form – Effective January 1, 2015 6 RIVERINE AND FRESHWATER TIDAL FRINGE WETLANDS Hydrologic Functions - Indicators that site functions to reduce flooding and stream erosion R 4.0. Does the site have the potential to reduce flooding and erosion? R 4.1. Characteristics of the overbank storage the wetland provides: Estimate the average width of the wetland perpendicular to the direction of the flow and the width of the stream or river channel (distance between banks). Calculate the ratio: (average width of wetland)/(average width of stream between banks). ☐ If the ratio is more than 20 points = 9 ☐ If the ratio is 10-20 points = 6 ☐ If the ratio is 5-<10 points = 4 ☒ If the ratio is 1-<5 points = 2 ☐ If the ratio is < 1 points = 1 2 R 4.2. Characteristics of plants that slow down water velocities during floods: Treat large woody debris as forest or shrub. Choose the points appropriate for the best description (polygons need to have >90% cover at person height. These are NOT Cowardin classes). ☐ Forest or shrub for > 1/3 area OR emergent plants > 2/3 area points = 7 ☒ Forest or shrub for > 1/10 area OR emergent plants > 1/3 area points = 4 ☐ Plants do not meet above criteria points = 0 4 Total for R 4 Add the points in the boxes above 6 Rating of Site Potential If score is: ☐12-16 = H ☒6-11 = M ☐0-5 = L Record the rating on the first page R 5.0. Does the landscape have the potential to support the hydrologic functions of the site? R 5.1. Is the stream or river adjacent to the wetland downcut? ☐Yes = 0 ☒No = 1 1 R 5.2. Does the up-gradient watershed include a UGA or incorporated area? ☒Yes = 1 ☐No = 0 1 R 5.3. Is the up-gradient stream or river controlled by dams? ☐Yes = 0 ☒No = 1 1 Total for R 5 Add the points in the boxes above 3 Rating of Landscape Potential If score is: ☒3 = H ☐1 or 2 = M ☐0 = L Record the rating on the first page R 6.0. Are the hydrologic functions provided by the site valuable to society? R 6.1. Distance to the nearest areas downstream that have flooding problems? Choose the description that best fits the site. ☒ The sub-basin immediately down-gradient of the wetland has flooding problems that result in damage to human or natural resources (e.g., houses or salmon redds) points = 2 ☐ Surface flooding problems are in a sub-basin farther down-gradient points = 1 ☐ No flooding problems anywhere downstream points = 0 2 R 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? ☐Yes = 2 ☒No = 0 0 Total for R 6 Add the points in the boxes above 2 Rating of Value If score is: ☒2-4 = H ☐1 = M ☐0 = L Record the rating on the first page Wetland name or number: Wetland A Wetland Rating System for Western WA: 2014 Update Rating Form – Effective January 1, 2015 7 These questions apply to wetlands of all HGM classes. HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold of ¼ ac or more than 10% of the unit if it is smaller than 2.5 ac. Add the number of structures checked. ☐ Aquatic bed 4 structures or more: points = 4 ☒ Emergent 3 structures: points = 2 ☒ Scrub-shrub (areas where shrubs have > 30% cover) 2 structures: points = 1 ☐ Forested (areas where trees have > 30% cover) 1 structure: points = 0 If the unit has a Forested class, check if: ☐ The Forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon 1 H 1.2. Hydroperiods Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or ¼ ac to count (see text for descriptions of hydroperiods). ☐ Permanently flooded or inundated 4 or more types present: points = 3 ☐ Seasonally flooded or inundated 3 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 1 H 1.3. Richness of plant species Count the number of plant species in the wetland that cover at least 10 ft2. Different patches of the same species can be combined to meet the size threshold and 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 ☐ < 5 species points = 0 1 H 1.4. Interspersion of habitats Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, low, or none. If you have four or more plant classes or three classes and open water, the rating is always high. ☐ None = 0 points ☐ Low = 1 point ☒ Moderate = 2 points All three diagrams in this row are ☐ HIGH = 3points 2 Wetland name or number: Wetland A Wetland Rating System for Western WA: 2014 Update Rating Form – Effective January 1, 2015 8 H 1.5. Special habitat features: Check the habitat features that are present in the wetland. The number of checks is the number of points. ☒ Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long). ☐ Standing snags (dbh > 4 in) within the wetland. ☐ Undercut banks are present for at least 6.6 ft (2 m) AND/OR overhanging plants extends at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m). ☐ 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 weathered where wood is exposed). ☐ At least ¼ ac of thin-stemmed persistent plants 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 every stratum of plants (see H 1.1 for list of strata). 2 Total for H 1 Add the points in the boxes above 7 Rating of Site Potential If score is: ☐15-18 = H ☒7-14 = M ☐0-6 = L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat functions of the site? H 2.1. Accessible habitat (include only habitat that directly abuts wetland unit). Calculate: % undisturbed habitat + [(%moderate and low intensity land uses)/2] = 7.5% + (0%/2) = 7.5% If total accessible habitat is: ☐ > 1/3 (33.3%) of 1 km Polygon points = 3 ☐ 20-33% of 1 km Polygon points = 2 ☐ 10-19% of 1 km Polygon points = 1 ☒ < 10% of 1 km Polygon points = 0 0 H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: % undisturbed habitat + [(%moderate and low intensity land uses)/2 = 9.9% + (25.9%/2) = 22.8% ☐ Undisturbed habitat > 50% of Polygon points = 3 ☐ Undisturbed habitat 10-50% and in 1-3 patches points = 2 ☒ Undisturbed habitat 10-50% and > 3 patches points = 1 ☐ Undisturbed habitat < 10% of 1 km Polygon points = 0 1 H 2.3. Land use intensity in 1 km Polygon: If ☐ > 50% of 1 km Polygon is high intensity land use points = (- 2) ☐ ≤ 50% of 1 km Polygon is high intensity points = 0 -2 Total for H 2 Add the points in the boxes above -1 Rating of Landscape Potential If score is: ☐4-6 = H ☐1-3 = M ☒< 1 = L Record the rating on the first page H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score that applies to the wetland being rated. Site meets ANY of the following criteria: points = 2 ☒ It has 3 or more priority habitats within 100 m (see next page) ☐ It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) ☐ It is mapped as a location for an individual WDFW priority species ☐ It is a Wetland of High Conservation Value as determined by the Department of Natural Resources ☐ It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan ☐ Site has 1 or 2 priority habitats (listed on next page) within 100 m points = 1 ☐ Site does not meet any of the criteria above points = 0 Click here to enter text. Rating of Value If score is: ☒2 = H ☐1 = M ☐0 = L Record the rating on the first page Wetland name or number: Wetland A Wetland Rating System for Western WA: 2014 Update Rating Form – Effective January 1, 2015 9 WDFW Priority Habitats Priority habitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympia, Washington. 177 pp. http://wdfw.wa.gov/publications/00165/wdfw00165.pdf or access the list from here: http://wdfw.wa.gov/conservation/phs/list/) Count how many of the following priority habitats are within 330 ft (100 m) of the wetland unit: NOTE: This question is independent of the land use between the wetland unit and the priority habitat. ☐ Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha). ☒ Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (full descriptions in WDFW PHS report). ☐ 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 8 trees/ac (20 trees/ha ) > 32 in (81 cm) dbh or > 200 years of age. Mature forests – Stands with average diameters exceeding 21 in (53 cm) dbh; 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; 80-200 years old west of the Cascade crest. ☐ Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 – see web link above). ☒ 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 – see web link above). ☐ 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 – see web link on previous page). ☐ 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 25 ft (7.6 m) high and occurring below 5000 ft elevation. ☐ Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0.15 - 2.0 m), 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 > 20 in (51 cm) in western Washington and are > 6.5 ft (2 m) in height. Priority logs are > 12 in (30 cm) in diameter at the largest end, and > 20 ft (6 m) long. Note: All vegetated wetlands are by definition a priority habitat but are not included in this list because they are addressed elsewhere. Wetland name or number: Wetland A Wetland Rating System for Western WA: 2014 Update Rating Form – Effective January 1, 2015 10 CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Wetland Type Check off any criteria that apply to the wetland. Circle the category when the appropriate criteria are met. Category SC 1.0. Estuarine wetlands Does the wetland 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= Not an estuarine wetland SC 1.1. Is the wetland within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural 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 Cat. I SC 1.2. Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions? ☐ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. (If non-native species are Spartina, see page 25) ☐ At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un- mowed grassland. ☐ The wetland has at least two of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. ☐Yes = Category I ☐No= Category II Cat. I Cat. II SC 2.0. Wetlands of High Conservation Value (WHCV) SC 2.1. Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High Conservation Value? ☒Yes – Go to SC 2.2 ☐No – Go to SC 2.3 SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? http://www.dnr.wa.gov/NHPwetlandviewer ☐Yes = Category I ☒No = Not a WHCV SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://file.dnr.wa.gov/publications/amp_nh_wetlands_trs.pdf ☐Yes – Contact WNHP/WDNR and go to SC 2.4 ☐No = Not a WHCV SC 2.4. Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Value and listed it on their website? ☐Yes = Category I ☐No = Not a WHCV Cat. I SC 3.0. Bogs Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below. If you answer YES you will still need to rate the wetland based on its functions. SC 3.1. Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or more of the first 32 in of the soil profile? ☐Yes – Go to SC 3.3 ☒No – Go to SC 3.2 SC 3.2. Does an area within the wetland unit have organic soils, either peats or mucks, that are less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on top of a lake or pond? ☐Yes – Go to SC 3.3 ☒No = Is not a bog SC 3.3. Does an area with peats or mucks have more than 70% cover of mosses at ground level, AND at least a 30% cover of plant species listed in Table 4? ☐Yes = Is a Category I bog ☐No – Go to SC 3.4 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 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present, the wetland is a bog. SC 3.4. Is an area with peats or mucks forested (> 30% cover) with Sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Engelmann spruce, or western white pine, AND any of the species (or combination of species) listed in Table 4 provide more than 30% of the cover under the canopy? ☐Yes = Is a Category I bog ☐No = Is not a bog Cat. I Wetland name or number: Wetland A Wetland Rating System for Western WA: 2014 Update Rating Form – Effective January 1, 2015 11 SC 4.0. Forested Wetlands Does the wetland have at least 1 contiguous acre of forest that meets one of these criteria for the WA 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 functions. ☐ Old-growth forests (west of Cascade crest): Stands of at least two tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 in (81 cm) or more. ☐ Mature forests (west of the Cascade Crest): Stands where the largest trees are 80- 200 years old OR the species that make up the canopy have an average diameter (dbh) exceeding 21 in (53 cm). ☐Yes = Category I ☒No = Not a forested wetland for this section Cat. I SC 5.0. Wetlands in Coastal Lagoons 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 ponded 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 aggressive, opportunistic plant species (see list of species on p. 100). ☐ At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un- mowed grassland. ☐ The wetland is larger than 1/10 ac (4350 ft2) ☐Yes = Category I ☐No = Category II Cat. I Cat. II SC 6.0. Interdunal Wetlands Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? If you answer yes you will still need to rate the wetland based on its habitat 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 ☐Yes – Go to SC 6.1 ☒No = not an interdunal wetland for rating SC 6.1. Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form (rates H,H,H or H,H,M for the three aspects of function)? ☐Yes = Category I ☐No – Go to SC 6.2 SC 6.2. Is the wetland 1 ac or larger, or is it in a mosaic of wetlands that is 1 ac or larger? ☐Yes = Category II ☐No – Go to SC 6.3 SC 6.3. Is the unit between 0.1 and 1 ac, or is it in a mosaic of wetlands that is between 0.1 and 1 ac? ☐Yes = Category III ☐No = Category IV Cat I Cat. II Cat. III Cat. IV Category of wetland based on Special Characteristics If you answered No for all types, enter “Not Applicable” on Summary Form N/A Wetland Rating System for Western WA: 2014 Update Rating Form – Effective January 1, 2015 12 Wetland name or number: Wetland A This page left blank intentionally 2014 Ecology Wetland Rating Form Figures A FICHUCK P ROPERTY Wetland A (Riverine) ..................................................................................................................................... 1 Figure 1. Cowardin plant classes – H1.1, H1.4 .......................................................................................... 1 Figure 2. Hydroperiods, ponded depressions, 150-foot area and wetland-width-to-stream-width ratio – H1.2, R1.1, R2.4, R4.1 .......................................................................................................... 2 Figure 3. Plant cover of trees, shrubs, and herbaceous plants (not Cowardin) – R1.2, R4.2 ................... 3 Figure 4. Map of the contributing basin – R2.2, R2.3, R5.2 ...................................................................... 4 Figure 5. Undisturbed habitat and moderate-low intensity land uses within 1 km from wetland edge including polygon for accessible habitat – H2.1, H2.2, H2.3 .................................................. 5 Figure 6. Screen-capture of 303(d) listed waters in basin – R3.1 ............................................................. 6 Figure 7. Screen-capture of TMDL list for WRIA in which unit is found – R3.2, R3.3 ............................... 7 Page left blank intentionally to allow for duplex printing. Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 1 WETLAND A (RIVERINE) Figure 1. Cowardin plant classes – H1.1, H1.4 Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 2 Figure 2. Hydroperiods, ponded depressions, 150-foot area and wetland-width-to-stream-width ratio – H1.2, R1.1, R2.4, R4.1 Width of wetland unit/Width of stream = 10/4 = 2.5 No ponded depressions Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 3 Figure 3. Plant cover of trees, shrubs, and herbaceous plants (not Cowardin) – R1.2, R4.2 Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 4 Figure 4. Map of the contributing basin – R2.2, R2.3, R5.2 Contributing basin Wetland unit Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 5 Figure 5. Undisturbed habitat and moderate-low intensity land uses within 1 km from wetland edge including polygon for accessible habitat – H2.1, H2.2, H2.3 Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 6 Figure 6. Screen-capture of 303(d) listed waters in basin – R3.1 Wetland Unit Delco and East Passages Bacteria Listing Features depicted are not to scale. Sketches are based on available data and best professional judgment. Wetland Figures - 7 Figure 7. Screen-capture of TMDL list for WRIA in which unit is found – R3.2, R3.3 Wetland unit located in the Duwamish-Green Basin Puget Sound Nutrient Source Reduction Project