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RESUB1 BLD2023-1499+Critical_Areas_Report+2.16.2024_3.50.31_PM+4066107Eastside Environmental Pros 26 January 2024 EE-414 Skyler Owen Via email: Skyler.Owen@pcfgroup.com REFERENCE: King County Tax Parcel 0043420660-2100 SUBJECT: Critical Areas Report Dear Skyler, At your request, Eastside Environmental Pros has investigated your property (hereinafter referred to as "Site") and areas within 300 feet of the property for the presence of critical areas (i.e. wetlands and streams). The Site and the surrounding 300 feet are referred to jointly as the "Study Area". This report has been prepared to comply with the requirements of Edmonds Municipal Code (EMC) §23.40.090- Critical areas report requirements. PROPERTY LOCATION The Site is a single 0.17-acre Snohomish County tax parcel (0043420660-2100) located at 215 10th Place Lane in Edmonds, Washington. The Public Land Survey System location of the Site is the Southeastern quarter of Section 27, Township 24 North, Range 03 East, of the Willamette Meridian. PROPERTY DESCRIPTION AND LAND USE The Site is developed with a single-family residence and associated driveway and lawn areas. A deck and spa are located on the southern portion of the residence at the top of a sloped area. The Site is bordered to the north by 10th Place North, to the east and west by developed single-family residences, and to the south by City -owned parcels. Ornamental species comprise the majority of the Site. However, offsite areas to the south include western redcedar (Thuja plicata), red alder (Alnus rubra), vine maple (Acer circinatum), Himalayan blackberry (Rubus armeniacus), salmonberry (Rubus spectabilis), swordfern (Polystichum munitum), creeping buttercup (Ranunculus repens), reed canarygrass (Phalaris arundinacea), slough sedge (Carex obnupta), and Robert's herb (Geranium robertianum). Topography onsite is sloped downward from the northeast to the southwest. The highest elevation onsite is located along the eastern Site boundary at approximately 230 feet, and the lowest elevation onsite is located on the southwestern Site corner at 200 feet. METHODOLOGY The Study Area was evaluated for the presence of critical areas on 11 January 2024 using the routine approach described in the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (U.S. Army Corps of Engineers, 2010) and the Washington State Department of Ecology's publication, Determining the Ordinary High Water Mark for Shoreline Management Compliance in Washington State (2016). Offsite areas were evaluated from what could be observed visually from the boundary of the Site, public rights -of -way, and via agency databases. Wetlands and their buffers were classified in accordance with EMC §23.50.010 and their buffers per EMC §23.50.040.F.1.e. Streams and their buffers were classified in accordance with EMC §23.90.010.1. Wetland Determination Datasheets were recorded within representative locations on the Site (Attachment 1). Wetland Rating forms were used to categorize wetland(s) within the Study Area (Attachment 2). Climatic conditions were evaluated through the Army Corps of Engineers Antecedent Precipitation Tool application (Attachment 3). Climatic conditions during the Site visit were normal. Photos are located at the end of the report, before the figures section. ONS/TE /NVESTIaAT/ON RESULTS Four (4) wetlands (Wetlands A, B, C, & D), and two (2) streams (Stream 1 & Shell Creek) were identified offsite but within the Study Area during the 11 January 2024 Site evaluation. No other critical areas were identified within the Studv Area. These features are described below in Table 1. Table 1. Critical Areas Summary Table. Critical Area Category/Type HGM/ Cowardin Class Standard Buffer Wetland A & B Category III / Riverine / Forested 60 feet (2,396-sf, 0.06-acres) and Habitat score 5 (4,245-sf, 0.10-acres) Wetland C & D Category III / Riverine / Forested and 110 feet (11,529-sf, 0.26-acres) and Habitat score 6 Scrub -shrub (8,322-sf, 0.19-acres) Stream 1 Type F N/A 100 feet Shell Creek Type F N/A 100 feet *All critical areas require an additional 15-foot building setback measured from the edge of the buffer per EMC §23.40.280. WETLANDS A AND B Wetland A and Wetland B are 2,396-sf and 4,245-sf respectively (Photos 1 and 2). Wetland A is located offsite to the southwest and Wetland B is located offsite to the south. Both of these wetlands are located adjacent to Stream 1 and have riverine hydrogeomorphic classifications (Brinson, 1993) and palustrine forested and scrub -shrub Cowardin classifications (Cowardin et al. 1979). Vegetation within Wetlands A and B include western redcedar (Thuja plicata), red alder (Alnus rubra), salmonberry (Rubus spectabilis), Himalayan blackberry (Rubus armeniacus), Dewey's sedge (Carex deweyana), and slough sedge (Carex obnupta). Soils within Wetlands A are characterized by a very dark brown (7.5YR 2.5/2) loamy organic mix from 0-4 inches. This is underlain by a black (7.5YR 2.5/1) sandy loamy organic mix from 4-10 inches. This is further underlain by a dark gray (10YR 4/1) and dark grayish brown (10YR 4/2) mixed matrix with a sand texture and dark yellowish brown (10YR 4//4) 5% prominent redox concentrations from 10-20 inches. These characteristics meet the physical criteria for the Depleted Below Dark Surface (A11) Hydric Soil Indicator. Soils within Wetland B are characterized by a very dark brown (10YR 2/2) loamy sand surface layer from 0-2 inches. This is underlain by a 35% dark grayish brown (10YR 4/2) sand layer with 5% dark yellowish brown (10YR 4/4) prominent redox concentrations and 60% dark gray (10YR 4/1) depletions from 2-20 inches. These characteristics meet the physical criteria for the Sandy Redox (S5) Hydric Soil Indicator. Hydrology within Wetland A and B are supported by Stream 1 and some groundwater. Hydrologic indicators observed during the Site visit included Water -Stained Leaves (B9), Presence of Reduced Iron (C4), Hydrogen Sulfide Odor (0), Saturation (A3), Surface Water (Al), and High Water Table (A2). Wetland A and B both scored 7 points for water quality functions, 5 points for hydrologic functions, and 5 points for habitat functions through Ecology's 2014 Rating System (Attachment 2), for a total score of 17 points. These scores meet the criteria for Category III wetlands per City of Edmond Municipal Code. Category III wetlands with habitat scores of 5 require standard 60- foot buffers and 15-foot building setbacks measured from the edge of the buffers per EMC §23.50.040.F.1.e and §23.40.280. WETLANDS C AND D Wetland C and Wetland D are 11,529-sf and 8,322-sf respectively. Wetland C is located offsite to the southwest and Wetland D is located offsite to the southeast. These wetlands have riverine hydrogeomorphic classifications (Brinson, 1993) and palustrine forested and scrub -shrub Cowardin classifications (Cowardin et al.1979). Wetland C surrounds portions of Shell Creek and Wetland D surrounds portions of Stream 1. Wetland C and D both scored 7 points for water quality functions, 5 points for hydrologic functions, and 6 points for habitat functions through Ecology's 2014 Rating System (Attachment 2), for a total score of 17 points. These scores meet the criteria for Category III wetlands and require standard 110-foot buffers and 15-foot building setbacks measured from the edge of the buffers per EMC §23.50.040.F.1.e and §23.40.280. STREAM 1 Stream 1 is located immediately south of the Site boundary (Photo 3). Stream 1 originates southeast of the Site and flows westward before joining Shell Creek southwest of Wetland A. Its streambed is comprised of large and medium sized cobbles and has an approximate bankfull width of approximately 3 feet. The contributing basin of the stream includes residential land uses and undeveloped land owned by the City of Edmonds to the southeast. The gradient of Stream 1 poses no fish barrier in relation to Shell Creek, which meets the physical criteria of a Type F watercourse, according to the State Interim Water Typing System (WAC 222- 16-031). Therefore, Stream 1 meets the physical requirements of a Type F watercourse and requires a standard 100-foot buffer measured from the OHWM plus a 15-foot setback measured from the edge of the buffer per EMC §23.90.010.1 and §23.40.280 (Figure 1). SHELL CREEK Shell Creek is located offsite and flows to the northwest, south of Stream 1. This watercourse originates to the southeast of the Site comingles with Puget Sound approximately 1 mile to the northwest of the Site. Its streambed is comprised of large and medium sized cobbles and has an approximate bankfull width of 10-12 feet. The contributing basin of the stream includes residential land uses and undeveloped land owned by the City of Edmonds to the southeast. Shell Creek is a well -documented Type F watercourse according to the City of Edmonds GIS database and Forest Practices Mapping Application Tool (2024), and meets the physical criteria of a Type F watercourse per the State Interim Water Typing System. Type F watercourses require a standard 100-foot buffer measured from the OHWM plus a 15-foot setback measured from the edge of the buffer per EMC §23.90.010.1 and §23.40.280 (Figure 1). PROPOSED PROJECT The applicant proposes to replace an existing permitted deck structure located along the southern portion of the single-family residence (Figure 1). Replacement of a legally constructed structure existing within a critical area or buffer is allowed per EMC §23.40.220.3. This provision can be applied when the proposed modification does not increase the footprint of the structure, does not increase the impact to the critical area or buffer, and does not increase risk to life or property as a result of the proposed replacement. This proposed deck replacement does not propose any expansion beyond its existing footprint, maintains the current level of environmental preservation to regulatory standards, and will therefore not increase the risk to life or property compared to the existing deck. SUMMARY A critical areas evaluation was completed on the subject property (Snohomish County TPN: 0043420660-2100) on 11 January 2023. Four (4) wetlands (Wetlands A, B, C, & D), and two (2) streams (Stream 1 & Shell Creek) were identified offsite within the Study Area during the 11 January 2024 Site evaluation. No other critical areas were identified within the Study Area. Wetlands A and B are Category III wetlands with habitat scores of 5 which require standard 60- foot buffers. Wetlands C and D are Category III wetlands with habitat scores of 6 which require 110-foot buffers. Stream 1 and Shell Creek meet the physical criteria for Type F watercourses which require standard 100-foot buffers. All critical areas require a 15-foot building setback measured from the edge of the critical area buffer. The applicant proposes to replace a legally established deck structure located within critical area buffers. Replacement of legally -established structures within critical area buffers is allowed per EMC §23.40.220.3 - Allowed Activities provided that the replacement does not expand the existing footprint. As such, the replacement will maintain the current level of environmental preservation, and will not increase the risk to life or property. We trust that the information presented here sufficiently describes and documents the critical areas on your property. Should you have questions or wish to discuss any of the information in this report, please contact me via email at EmilyNW@wetland-consulting.com or via phone at (559) 892-7696. Sincerely, Eastside Environmental Pros, Inc. c/Mu) Emily Newton-Weideman Ecologist Kellen Maloney, PWS Principal Ecologist, Attachments: Photos AC CO H E7N1C Vi KELLEN NEy �2 O'�tc. 3435 PWS v` ONAL WESLP��S Figures 1. Wetland Determination Datasheets 2. Wetland Rating Forms 3. Corps Antecedent Precipitation Tool REFERENCES Brinson, M. M.1993a. A hydrogeomorphic classification for wetlands. U.S. Army Engineer Research and Development Center, Vicksburg, MS, USA. Technical Report WRP-DE-4. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. Classification of Wetlands and Deepwater Habitats of the United States. FWSOBS-70/31, U.S. Fish and Wildlife Service, Department of the Interior,1979. Environmental Laboratory. US Army Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1, Vicksburg, Miss.: US Army Corps of Engineers Waterways Experiment Station,1987. Hitchcock, C. Leo, Arthur Cronquist, Marion Owensby, and J. W. Thompson. Vascular Plants of the Pacific Northwest. Seattle: University of Washington Press, 2018 update. Hruby 2014. Washington State Wetland Rating System for Western Washington: 2014 (Publication #14-06-029). Olympia, WA: Washington Department of Ecology. Lichvar, R.W. National Wetland Plant List. ERCD/CRREL TR-12-11, Hanover, NH: U.S. Army Corps of Engineers, Cold Regions Research and Engineering Laboratory, 2016. Munsell Color (Firm). Munsell Soil Color Charts: with Genuine Munsell Color Chips. Grand Rapids, MI :Munsell Color, 2010. Northwest Indian Fisheries Commission (NWIFC) Statewide Washington Integrated Fish Distribution Mapper (SWIFD). Accessed 2024. Sprecher, S. W; Warne, A. G. Accessing and Using Meteorological Data to Evaluate Wetland Hydrology. Army Engineer Waterways Experiment Station, Vicksburg, MS. Environmental Lab. 2000. U.S. Army Corps of Engineers. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (Version 2.0). Final Report, U. S. Army Corps of Engineers, Wetlands Regulatory Assistance Program, 2010. Washington State Department of Fish and Wildlife. "Priority Habitats and Species Database." 2024. www.wdfw.wa.gov/mapping/phs tA O 4J O s 0. l v ++ a /'`}►` O Yy 1 r^ a FIGURES Figure 1: Existing Conditions Map EXISTING DRIVEWAY 7 EXISTING SFR,TYP. -� ti PROJECT SITE ADDRESS 215 10TH PL N EDMONDS, WA 99020 PARCEL / / I 00434206602100 \� EXISTING DECK TO I I \ WETLAND A BE REPLACED WITHIN CATEGORY III EXISTING FOOTPRINT WETLAND AND STREAM 2,396 SF (0.06 AC) I BUFFERS WRAP AROUND _ � 60' STD BUFFER EXISTING STRUCTURES •� — SP-1 +SP-4 EXISTING \ A-3 SPA \ - `�-—--ILL S / S-1 \\ \\\ \ \ S-2 �� \,�\. �� WETLAND B S-3B B-1 �B-2 STREAM 1 • �A-1 / S-1A-4 • Z�(SP-3 CATEGORY III \ 1I TYPE F �� SP-2 4,245 SF (0.10 AC) C \ �B-3 60' STD BUFFER \ \ \ 100 STD BUFFER 9� ZOO \\ �I�\ \ . \ \ WETLAND C \ CATEGORY III 11,529 SF (0.26 AC) \ \ 110' STD BUFFER O \ \ I WETLAND D �\ • \ \I STREAM 2 \ CATEGORY III AL \ AL TYPE F 9,322 SF (0.19 AC) \ 100' STD BUFFER \� 110' STD BUFFER \ PLAN LEGEND — — —PROPERTY LINE JEXISTING WETLAND WETLAND BUFFER '/A-# WETLAND FLAG LOCATION +SP-# SOIL TEST PIT LOCATION • • • • • • STREAM CENTERLINE --- STREAM ORDINARY HIGH WATER MARK (OH WM) STREAM BUFFER *S-# STREAM OHWM FLAG LOCATION 15-FT BUILDING SETBACK (BSBL) EXISTING CONTOUR (2-FT) PARCEL DATA EXTRACTED FROM SNOHOMISH COUNTY GIS. ELEVATION DATA EXTRACTED FROM 2017 LiDAR DATA. WETLAND BOUNDARIES LOCATED WITH EOS ARROW 100 SUB -METER GPS DEVICE. NOTE: EXISTING HOUSE AND IMPROVEMENTS DO NOT MEET BUFFER DEFINITION, PER ECC. 23.40.005, "BUFFER" MEANS THE DESIGNATED AREA NEXT TO AND PART OF A STREAM OR WETLAND THAT IS AN INTEGRAL PART OF THE STREAM OR WETLAND ECOSYSTEM. GRAPHIC SCALE N 0 15' 30' 60' GRAPHIC SCALE: 1"=30' ( IN FEET) FIGURE # 1 SCALE DRAWN BY: AS SHOWN AS EXISTING CONDITIONS MAP DATE 01-24-2024 EASTSIDE ENVIRONMENTAL PROS, INC. OWEN CRITICAL AREAS REPORT 19500 156th Ave NE, suite 203 EDMONDS, WASHINGTON Woodinville, Washington 99072 FIGURE Bus (42S) 949-6659 #1 C Copyright — Eastside Environmental Pros, INC. ATTACHMENT 1 Wetland Determination Datasheets. Eastside Environmental Pros, Inc. 11 January 2024 WETLAND DETERMINATION DATA FORM — Western Mountains, Valleys, and Coast Region Project/Site: EE-414 City/County: Edmonds Sampling Date:1/11/2024 Applicant/Owner: Skyler Owen State: WA Sampling Point: SP-1 Investigator(s): ENW Section, Township, Range: SE- 27 - 24 - 03 Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): None Slope (%): 2 Subregion (LRR): A Lat: 47.81137655 Long:-122.36477287 Datum: NAD83 Soil Map Unit Name: Alderwood-Everett gravelly sandy Ioams, 25 to 70 percent slopes NWI classification: R4SBC Are climatic / hydrologic conditions on the site typical for this time of year? Yes ® No ❑ (If no, explain in Remarks.) Are Vegetation X, 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.) iUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes ® No ❑ Is the Sampled Area Hydric Soil Present? Yes ® No ❑ within a Wetland? Yes ® No ❑ Wetland Hydrology Present? Yes ® No ❑ Remarks: Sample point taken within Wetland A. Normal climatic conditions present during Site Evaluation. Sample point meets wetland criteria. VEGETATION — Use scientific names of plants. Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size: 30 ft) % Cover Species? Status Number of Dominant Species 1. Thuia plicata 60 Y FAC That Are OBL, FACW, or FAC: 3 (A) 2. Alnus rubra 35 Y FAC Total Number of Dominant 3• Species Across All Strata: 4 (B) 4. Percent of Dominant Species 95 = Total Cover That Are OBL, FACW, or FAC: 75% (A/B) Sapling/Shrub Stratum (Plot size: 15 ft) 1. Rhododendron spp. 30 Y FAC Prevalence Index worksheet: 2. Rubus armeniacus 5 N FAC Total % Cover of: Multiply by: 3. OBL species x 1 = 4. FACW species x 2 = 5. FAC species x 3 = 35 = Total Cover FACU species x 4 = Herb Stratum (Plot size: 5 ft) UPL species x 5 = 1. Tellima grandiflora 5 Y FACU Column Totals: (A) (B) 2. 3 Prevalence Index = B/A = 4 Hydrophytic Vegetation Indicators: 5 ® Dominance Test is >50% g ❑ Prevalence Index is 53.0' 7 ❑ Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) 8. ❑ Problematic Hydrophytic Vegetation' (Explain) 5 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. None 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 2. Hydrophytic 5 = Total Cover Vegetation % Bare Ground in Herb Stratum 95 % Cover of Biotic Crust 0 Present? Yes ® No ❑ Remarks: Vegetation within this area is disturbed due to its vicinity to preexisting ornamental areas. Hydrophytic vegetation criteria is met. US Army Corps of Engineers Western Mountains, Valleys, and Coast— Version 2.0 SOIL Sampling Point: SP-1 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' Loc2 Texture Remarks 0-4 7.5YR 2.5/2 100 LOOrg 4-10 7.5YR 2.5/1 100 SLoOrg 10-20 10YR 4/1 60 10YR 4/4 5 C M S Prominent redox concentrations 10YR 4/2 35 S 'Type: C=Concentration, D=De letion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: ❑ Histosol (Al) ❑ Sandy Redox (S5) ❑ 2 cm Muck (Al0) ❑ 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 (Al 1) ❑ Depleted Matrix (F3) ❑ Thick Dark Surface (Al2) ❑ Redox Dark Surface (F6) ❑ Sandy Mucky Mineral (S1) ❑ Depleted Dark Surface (F7) 'Indicators of hydrophytic vegetation and ❑ Sandy Gleyed Matrix (S4) ❑ Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes ® No ❑ Remarks: Hydric soil criteria is met. HYDROLOGY 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 (139) (except MLRA 1, 2, ❑ Water Stained Leaves (139) (MLRA 1, 2, 4A, and 413) 4A, and 413)) ® High Water Table (A2) ❑ Salt Crust (1311) ❑ Drainage Patterns (1310) ® Saturation (A3) ❑ Aquatic Invertebrates (1313) ❑ Dry -Season Water Table (C2) ❑ Water Marks (131) ® Hydrogen Sulfide Odor (C1) ❑ Saturation Visible on Aerial Imagery (C9) ❑ Sediment Deposits (132) ❑ Oxidized Rhizospheres along Living Roots (C3) ❑ Geomorphic Position (D2) ❑ Drift Deposits (133) ® Presence of Reduced Iron (C4) ❑ Shallow Aquitard (D3) ❑ Algal Mat or Crust (134) ❑ Recent Iron Reduction in Tilled Soils (C6) ❑ FAC-Neutral Test (D5) ❑ Iron Deposits (135) ❑ Stunted or Stressed Plants (D1)(LRR A) ❑ Raised Ant Mounds (D6(LRR A) ❑ Surface Soil Cracks (136) ❑ Other (Explain in Remarks) ❑Frost -Heave Hummocks (D7) ❑ Inundation Visible on Aerial Imagery (137) ❑ Sparsely Vegetated Concave Surface (138) Field Observations: Surface Water Present? Yes ❑ No ® Depth (inches): Water Table Present? Yes ® No ❑ Depth (inches): 2 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: Wetland hydrology criteria is met. 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: EE-414 City/County: Edmonds Sampling Date:01/11/2024 Applicant/Owner: Skyler Owen State: WA Sampling Point: SP-2 Investigator(s): ENW Section, Township, Range: SE- 27 - 24 - 03 Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): Concave Slope (%): 1 Subregion (LRR): A Lat: 47.81127039 Long:-122.36445303 Datum: NAD83 Soil Map Unit Name: Alderwood-Everett gravelly sandy Ioams, 25 to 70 percent slopes NWI classification: R4SBC 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.) iUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes ® No ❑ Is the Sampled Area Hydric Soil Present? Yes ® No ❑ within a Wetland? Yes ® No ❑ Wetland Hydrology Present? Yes ® No ❑ Remarks: Sample point taken within Wetland B. Normal climatic conditions present during Site Evaluation. Sample point does meet wetland criteria. VEGETATION — Use scientific names of plants. Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size: 30 ft) % Cover Species? Status Number of Dominant Species 1. Thuia plicata 25 Y FAC That Are OBL, FACW, or FAC: 4 (A) 2. Alnus rubra 60 Y FAC Total Number of Dominant 3• Species Across All Strata: 5 (B) 4. Percent of Dominant Species 15 = Total Cover That Are OBL, FACW, or FAC: 80% (A/B) Sapling/Shrub Stratum (Plot size: 15 ft) 1. Rubus spectabilis 25 Y FAC Prevalence Index worksheet: 2. Prunus laurocerasus 15 Y FACU Total % Cover of: Multiply by: 3. OBL species x 1 = 4. FACW species x 2 = 5. FAC species x 3 = = Total Cover FACU species x 4 = Herb Stratum (Plot size: 5 ft) UPL species x 5 = 1. Carex obnupta 5 Y OBL Column Totals: (A) (B) 2. 3 Prevalence Index = B/A = 4 Hydrophytic Vegetation Indicators: 5 ® Dominance Test is >50% g ❑ Prevalence Index is 53.0' 7 ❑ Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) 8. ❑ Problematic Hydrophytic Vegetation' (Explain) 5 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. None 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 2. Hydrophytic 0 = Total Cover Vegetation % Bare Ground in Herb Stratum 95 % Cover of Biotic Crust 0 Present? Yes ® No ❑ Remarks: This area contains hummocks that allows for some FACU species. However, just adjacent to this sample point's 5 foot herb stratum resides a community of Carex obnupta at the same topographic and elevation position in the landscape. Therefore, it is our best professional opinion that hydrophytic vegetation criteria is met. US Army Corps of Engineers Western Mountains, Valleys, and Coast— Version 2.0 SOIL Sampling Point: SP-2 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' Loc2 Texture Remarks 0-2 10YR 2/2 100 LoS 2-20 10YR 4/2 35 10YR 4/4 5 C M/PL S distinct redox concentrations 10YR 4/1 60 D M S faint deppletions 'Type: C=Concentration, D=De letion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: ❑ Histosol (Al) ® Sandy Redox (S5) ❑ 2 cm Muck (Al 0) ❑ 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 (Al 1) ❑ Depleted Matrix (F3) ❑ Thick Dark Surface (Al2) ❑ Redox Dark Surface (F6) ❑ Sandy Mucky Mineral (S1) ❑ Depleted Dark Surface (F7) 'Indicators of hydrophytic vegetation and ❑ Sandy Gleyed Matrix (S4) ❑ Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes ® No ❑ Remarks: Hydric soil criteria is met. HYDROLOGY 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 (139) (except MLRA 1, 2, ❑ Water Stained Leaves (139) (MLRA 1, 2, 4A, and 413) 4A, and 413)) ® High Water Table (A2) ❑ Salt Crust (1311) ❑ Drainage Patterns (1310) ® Saturation (A3) ❑ Aquatic Invertebrates (1313) ❑ Dry -Season Water Table (C2) ❑ Water Marks (131) ® Hydrogen Sulfide Odor (C1) ❑ Saturation Visible on Aerial Imagery (C9) ❑ Sediment Deposits (132) ❑ Oxidized Rhizospheres along Living Roots (C3) ❑ Geomorphic Position (D2) ❑ Drift Deposits (133) ® Presence of Reduced Iron (C4) ❑ Shallow Aquitard (D3) ❑ Algal Mat or Crust (134) ❑ Recent Iron Reduction in Tilled Soils (C6) ❑ FAC-Neutral Test (D5) ❑ Iron Deposits (135) ❑ Stunted or Stressed Plants (D1)(LRR A) ❑ Raised Ant Mounds (D6(LRR A) ❑ Surface Soil Cracks (136) ❑ Other (Explain in Remarks) ❑Frost -Heave Hummocks (D7) ❑ Inundation Visible on Aerial Imagery (137) ❑ Sparsely Vegetated Concave Surface (138) Field Observations: Surface Water Present? Yes ® No ❑ Depth (inches): 1 Water Table Present? Yes ® No ❑ Depth (inches): 0 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: Wetland hydrology criteria is met. 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: EE-414 City/County: Edmonds Sampling Date:1/11/2024 Applicant/Owner: Skyler Owen State: WA Sampling Point: SP-3 Investigator(s): ENW Section, Township, Range: SE- 27 - 24 - 03 Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): None Slope (%): 35 Subregion (LRR): A Lat: 47.81130461 Long:-122.36445028 Datum: NAD83 Soil Map Unit Name: Alderwood-Everett gravelly sandy Ioams, 25 to 70 percent slopes 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.) iUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes ❑ No Is the Sampled Area Hydric Soil Present? Yes ❑ No ® within a Wetland? Yes ❑ No Wetland Hydrology Present? Yes ❑ No Remarks: Sample point taken adjacent to Wetland B. Normal climatic conditions present during Site Evaluation. Sample point does not meet wetland criteria. VEGETATION — Use scientific names of plants. Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size: 30 ft) % Cover Species? Status Number of Dominant Species 1. Alnus rubra 25 Y FAC That Are OBL, FACW, or FAC: 3 (A) 2. Thuia o icata 35 Y FAC Total Number of Dominant 3. Acermacronhvllum 15 Y FACU Species Across All Strata: 10 (B) 4. Percent of Dominant Species 75 = Total Cover That Are OBL, FACW, or FAC: 30 (A/B) Sapling/Shrub Stratum (Plot size: 15 ft) 1. Ilex apuifolium 10 Y FACU Prevalence Index worksheet: 2. Prunus laurocerasus 5 Y FACU Total % Cover of: Multiply by: 3. Rubus armeniacus 5 Y FAC OBL species x 1 = 4, FACW species x 2 = 5, FAC species x 3 = 20 = Total Cover FACU species x 4 = Herb Stratum (Plot size: 5 ft) UPL species x 5 1. Rubus ursinus 15 Y FACU Column Totals: (A) (B) 2. Tellima crrandiflora 5 Y FACU 3. Polystichum munitum 5 Y FACU Prevalence Index = B/A = 4. Geranium robertianum 5 Y FACU Hydrophytic Vegetation Indicators: 5. ❑ Dominance Test is >50% 6. ❑ Prevalence Index is <_3.0' 7. ❑ Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) 8. ❑ Problematic Hydrophytic Vegetation' (Explain) 30 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. None 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 2. Hydrophytic 0 = Total Cover Vegetation % Bare Ground in Herb Stratum 70 % Cover of Biotic Crust 0 Present? Yes ❑ No ED Remarks: Hydrophytic vegetation criteria not met. US Army Corps of Engineers Western Mountains, Valleys, and Coast— Version 2.0 SOIL Sampling Point: SP-3 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' Loc2 Texture Remarks 0-4 10YR 4/3 100 S 4-20 10YR 5/3 100 S 'Type: C=Concentration, D=De letion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: ❑ Histosol (Al) ❑ Sandy Redox (S5) ❑ 2 cm Muck (Al0) ❑ 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 (Al 1) ❑ Depleted Matrix (F3) ❑ Thick Dark Surface (Al2) ❑ Redox Dark Surface (F6) ❑ Sandy Mucky Mineral (S1) ❑ Depleted Dark Surface (F7) 'Indicators of hydrophytic vegetation and ❑ Sandy Gleyed Matrix (S4) ❑ Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes ❑ No Remarks: Hydric soil criteria not met. HYDROLOGY 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 (139) (except MLRA 1, 2, ❑ Water Stained Leaves (139) (MLRA 1, 2, 4A, and 413) 4A, and 413)) ❑ High Water Table (A2) ❑ Salt Crust (1311) ❑ Drainage Patterns (1310) ❑ Saturation (A3) ❑ Aquatic Invertebrates (1313) ❑ Dry -Season Water Table (C2) ❑ Water Marks (131) ❑ Hydrogen Sulfide Odor (C1) ❑ Saturation Visible on Aerial Imagery (C9) ❑ Sediment Deposits (132) ❑ Oxidized Rhizospheres along Living Roots (C3) ❑ Geomorphic Position (D2) ❑ Drift Deposits (133) ❑ Presence of Reduced Iron (C4) ❑ Shallow Aquitard (D3) ❑ Algal Mat or Crust (134) ❑ Recent Iron Reduction in Tilled Soils (C6) ❑ FAC-Neutral Test (D5) ❑ Iron Deposits (135) ❑ Stunted or Stressed Plants (D1)(LRR A) ❑ Raised Ant Mounds (D6(LRR A) ❑ Surface Soil Cracks (136) ❑ Other (Explain in Remarks) ❑Frost -Heave Hummocks (D7) ❑ Inundation Visible on Aerial Imagery (137) ❑ Sparsely Vegetated Concave Surface (138) Field Observations: Surface Water Present? Yes ❑ No ® Depth (inches): Water Table Present? Yes ❑ No ® Depth (inches): Saturation Present? Yes ❑ No ® Depth (inches): Wetland Hydrology Present? Yes ❑ No El includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: Wetland hydrology criteria not met. 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: EE-414 City/County: Edmonds Sampling Date:1/11/2024 Applicant/Owner: Skyler Owen State: WA Sampling Point: SP-4 Investigator(s): ENW Section, Township, Range: SE- 27 - 24 - 03 Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): None Slope (%): 35 Subregion (LRR): A Lat: 47.81141472 Long:-122.36472990 Datum: NAD83 Soil Map Unit Name: Alderwood-Everett gravelly sandy Ioams, 25 to 70 percent slopes 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 X, 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.) iUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes ❑ No Is the Sampled Area Hydric Soil Present? Yes ❑ No ® within a Wetland? Yes ❑ No Wetland Hydrology Present? Yes ❑ No Remarks: Sample point taken adjacent to Wetland A. Normal climatic conditions present during Site Evaluation. Sample point does not meet wetland criteria. VEGETATION — Use scientific names of plants. Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size: 30 ft) % Cover Species? Status Number of Dominant Species 1. Psuedotsuga menziesii 40 Y FACU That Are OBL, FACW, or FAC: 2 (A) 2. Thuia plicata 40 Y FAC Total Number of Dominant 3. Species Across All Strata: 6 (B) 4. Percent of Dominant Species 80 = Total Cover That Are OBL, FACW, or FAC: 30% (A/B) Sapling/Shrub Stratum (Plot size: 15 ft) 1. Ilex aguifolium 15 Y FACU Prevalence Index worksheet: 2, Total % Cover of: Multiply by: 3. OBL species x 1 = 4, FACW species x 2 = 5, FAC species x 3 = 15 = Total Cover FACU species x 4 = Herb Stratum (Plot size: 5 ft) UPL species x 5 1. Viola spp. 20 Y FAC Column Totals: (A) (B) 2. Narcissus spp. 10 N FAC 3. Galium aparine 5 N FACU Prevalence Index = B/A = 4. Geranium robertianum 5 N FACU Hydrophytic Vegetation Indicators: 5. Polystichum munitum 15 Y FACU ❑ Dominance Test is >50% 6. Oxalis oregana 10 N FACU ❑ Prevalence Index is <_3.0' 7. ❑ Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) 8. ❑ Problematic Hydrophytic Vegetation' (Explain) 65 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. None 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 2. Hydrophytic 0 = Total Cover Vegetation % Bare Ground in Herb Stratum 35 % Cover of Biotic Crust 0 Present? Yes ❑ No ED Remarks: This area contains an abundance of planted ornamental species in all stratum. Historic vegetation conditions are non intact. Hydrophytic vegetation criteria is not met. US Army Corps of Engineers Western Mountains, Valleys, and Coast— Version 2.0 SOIL Sampling Point: SP-4 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' Loc2 Texture Remarks 0-12 7.5YR 3/2 100 SLo 8-12 7.5YR 4/2 30 10YR 4/4 1 M SLo Concretion, not redox 7.5YR 3/2 70 SLo 'Type: C=Concentration, D=De letion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: ❑ Histosol (Al) ❑ Sandy Redox (S5) ❑ 2 cm Muck (Al0) ❑ 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 (Al 1) ❑ Depleted Matrix (F3) ❑ Thick Dark Surface (Al2) ❑ Redox Dark Surface (F6) ❑ Sandy Mucky Mineral (S1) ❑ Depleted Dark Surface (F7) 'Indicators of hydrophytic vegetation and ❑ Sandy Gleyed Matrix (S4) ❑ Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes ❑ No Remarks: Hydric soil criteria is not met. HYDROLOGY 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 (139) (except MLRA 1, 2, ❑ Water Stained Leaves (139) (MLRA 1, 2, 4A, and 413) 4A, and 413)) ❑ High Water Table (A2) ❑ Salt Crust (1311) ❑ Drainage Patterns (1310) ❑ Saturation (A3) ❑ Aquatic Invertebrates (1313) ❑ Dry -Season Water Table (C2) ❑ Water Marks (131) ❑ Hydrogen Sulfide Odor (C1) ❑ Saturation Visible on Aerial Imagery (C9) ❑ Sediment Deposits (132) ❑ Oxidized Rhizospheres along Living Roots (C3) ❑ Geomorphic Position (D2) ❑ Drift Deposits (133) ❑ Presence of Reduced Iron (C4) ❑ Shallow Aquitard (D3) ❑ Algal Mat or Crust (134) ❑ Recent Iron Reduction in Tilled Soils (C6) ❑ FAC-Neutral Test (D5) ❑ Iron Deposits (135) ❑ Stunted or Stressed Plants (D1)(LRR A) ❑ Raised Ant Mounds (D6(LRR A) ❑ Surface Soil Cracks (136) ❑ Other (Explain in Remarks) ❑Frost -Heave Hummocks (D7) ❑ Inundation Visible on Aerial Imagery (137) ❑ Sparsely Vegetated Concave Surface (138) Field Observations: Surface Water Present? Yes ❑ No ® Depth (inches): Water Table Present? Yes ❑ No ® Depth (inches): Saturation Present? Yes ❑ No ® Depth (inches): Wetland Hydrology Present? Yes ❑ No El includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: Wetland hydrology criteria is not met. US Army Corps of Engineers Western Mountains, Valleys, and Coast— Version 2.0 ATTACHMENT 2 Wetland Rating Forms Eastside Environmental Pros, 2024. RATING FIGURES (Located at the end of the rating forms) Figure A: Cowardin & Hydroperiod Classes Figure B: Contributing Basin Map Figure C: Habitat within 1 kilometer Figure D: 303d Listed Waterbodies Figure E: TMDLs in Basin Wetlands A & B RATING SUMMARY - Western Washington Name of wetland (or ID #): Wetlands A & B Date of site visit: 1/11/2024 Rated by KM Trained by Ecology? ® Yes ❑ No Date of training 10-2018 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 OVERALL WETLAND CATEGORY III (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 Hydrologic Habitat Water Quality Site Potential M Landscape Potential H Value M Circle the appropriate ratings M L M L L H I TOTAL Score Based on Ratings 7 5 5 17 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 Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 1 Wetlands A & B Maps and figures required to answer questions correctly for Western Washington Depressional Wetlands Map of: To answer questions: Figure # Cowardin plant classes D 1.3, H 1.1, H 1.4 Hydroperiods D 1.4, H 1.2 Location of outlet (can be added to map of hydroperiods) D 1.1, D 4.1 Boundary of area within 150 ft of the wetland (can be added to another figure) D 2.2, D 5.2 Map of the contributing basin D 4.3, D 5.3 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 Screen capture of map of 303(d) listed waters in basin (from Ecology website) D 3.1, D 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) D 3.3 Riverine Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 Hydroperiods H 1.2 Ponded depressions R 1.1 Boundary of area within 150 ft of the wetland (can be added to another figure) R 2.4 Plant cover of trees, shrubs, and herbaceous plants R 1.2, R 4.2 Width of unit vs. width of stream (can be added to another figure) R 4.1 Map of the contributing basin R 2.2, R 2.3, R 5.2 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 Screen capture of map of 303(d) listed waters in basin (from Ecology website) R 3.1 Screen capture of list of TMDLs for WRIA in which unit is found (from web) R 3.2, R 3.3 Lake Fringe Wetlands Map of: To answer questions: Figure # Cowardin plant classes L 1. 1, L 4.1, H 1. 1, H 1.4 Plant cover of trees, shrubs, and herbaceous plants L 1.2 Boundary of area within 150 ft of the wetland (can be added to another figure) L 2.2 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 Screen capture of map of 303(d) listed waters in basin (from Ecology website) L 3.1, L 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) L 3.3 Slope Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 Hydroperiods H 1.2 Plant cover of dense trees, shrubs, and herbaceous plants S 1.3 Plant cover of dense, rigid trees, shrubs, and herbaceous plants (can be added to figure above) S 4.1 Boundary of 150 ft buffer (can be added to another figure) S 2.1, S 5.1 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 Screen capture of map of 303(d) listed waters in basin (from Ecology website) S 3.1, S 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) S 3.3 Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands A & B HGM Classification of Wetlands in Western Washington 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. 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 Ifyour 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 Ifyour 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-goto5 ® 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. ❑ 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 Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands A & B 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at sometime during the year? This means that any outlet, if present, is higher than the interior of the wetland. ®NO-goto7 ❑ 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. ❑ 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 Ifyou are still unable to determine which of the above criteria apply to your wetland, or ifyou have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands A & B 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 Depressions cover > Yz area of wetland points = 4 2 Depressions present but cover < Yz area of wetland points = 2 No depressions present points = 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 plants > 6 in high) > Z Herbaceous ( ) p g/3 area of the wetland points = 6 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 Total for R 1 Add the points in the boxes above 8 Rating of Site Potential If score is:F-1 12-16 = H M6-11 = M F-1 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 Yes = 1 No = 0 0 Total for R 2 Add the points in the boxes above 4 Rating of Landscape Potential If score is:M3-6 = H F-1 1 or 2 = M F0 = 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? 1 Yes=1 No=O R 3.2. Is the wetland along a stream or river that has TMDL limits for nutrients, toxics, or pathogens? Yes=1 No=O 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:F-1 2-4 = H M1 = M F-1 0 = L Record the rating on the first page Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands A & B 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 2 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 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 7 Forest or shrub for > 1/io area OR emergent plants > 1/3 area points = 4 Plants do not meet above criteria points = 0 Total for R 4 Add the points in the boxes above g Rating of Site Potential If score is:_n12-16 = 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 0 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 0 Total for R 5 Add the points in the boxes above 1 Rating of Landscape Potential If score is:E_3 = H E_1 or 2 = M 0_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 0 Surface flooding problems are in a sub -basin farther down -gradient points = 1 No flooding problems anywhere downstream points = 0 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=O 0 Total for R 6 Add the points in the boxes above 0 Rating of Value If score is:F-1 2-4 = H F-1 1 = M [;� 0 = L Record the rating on the first page Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands A & B HABITAT FUNCTIONS - These questions apply to wetlands of all HGM classes. 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 % 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 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 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 % 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 1 ® 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 H 1.3. Richness of plant species Count the number of plant species in the wetland that cover at least 10 ftz. Different patches of the some 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 1 If you counted: > 19 species points = 2 5 - 19 species points = 1 < 5 species points = 0 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. O 0 0 None = 0 points Low = 1 point Moderate = 2 points All three diagrams in this row are HIGH = 3points Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands A & B 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) 1 ❑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 % 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) Total for H 1 Add the points in the boxes above 4 Rating of Site Potential If score is: 1 1 15-18 = H 1 1 7-14 = M IXI 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 habitat3+ [(% moderate and low intensity land uses)/2]0_ = 3% If total accessible habitat is: > 1/3 (33.3%) of 1 km Polygon points = 3 0 20-33% of 1 km Polygon points = 2 10-19% of 1 km Polygon points = 1 < 10% of 1 km Polygon points = 0 H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: % undisturbed habitat_12 + [(% moderate and low intensity land uses)/2]_2.5_ = 12.5% Undisturbed habitat > 50% of Polygon points = 3 2 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 H 2.3. Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points = (- 2) -2 <_ 50% of 1 km Polygon is high intensity points = 0 Total for H 2 Add the points in the boxes above 0 Rating of Landscape Potential If score is:JL] 4-6 = H U 1-3 = M X1 < 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 2 ❑ 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 Rating of Value If score is:❑L2 = H " 1 = M " 0 = L Record the rating on the first page Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 11 Wetlands A & B 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/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 fortis on shallow soils over bedrock. ❑ Old-growth/Mature forests: Old -growth west of Cascade crest - Stands of at least 2 tree species, forming a multilayered 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 Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands A & B CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Wetland Type Category Check off any criteria that apply to the wetland. Circle the category when the appropriate criteria are met. 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? No ❑ Yes = Category I ❑ No - Go to SC 1.2 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 % of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or No unmowed 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 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? ❑ Yes = Category I ❑ No = Not a WHCV No SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://wwwl.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.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 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% No 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 Wetland Rating System for Western WA: 2014 Update 10 Rating Form - Effective January 1, 2015 Wetlands A & B 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 No 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 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? No ❑ 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 % of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or unmowed grassland. ❑ The wetland is larger than 1/10 ac (4350 ftz) ❑Yes = Category I ❑ No = Category 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 No 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 1 ❑ 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 Category of wetland based on Special Characteristics "Not N/A If you answered No for all types, enter Applicable" on Summary Form Wetland Rating System for Western WA: 2014 Update 11 Rating Form - Effective January 1, 2015 Wetlands A & B This page left blank intentionally Wetland Rating System for Western WA: 2014 Update 12 Rating Form - Effective January 1, 2015 Wetlands C and D RATING SUMMARY - Western Washington Name of wetland (or ID #): Wetlands C & D Date of site visit: 1/11/2024 Rated by KM Trained by Ecology? ® Yes ❑ No Date of training 10-2018 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 OVERALL WETLAND CATEGORY III (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 Hydrologic Habitat Water Quality Site Potential M Landscape Potential H Value M Circle the appropriate ratings M M M L L H I TOTAL Score Based on Ratings 7 5 6 18 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 Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 1 Wetlands C and D Maps and figures required to answer questions correctly for Western Washington Depressional Wetlands Map of: To answer questions: Figure # Cowardin plant classes D 1.3, H 1.1, H 1.4 Hydroperiods D 1.4, H 1.2 Location of outlet (can be added to map of hydroperiods) D 1.1, D 4.1 Boundary of area within 150 ft of the wetland (can be added to another figure) D 2.2, D 5.2 Map of the contributing basin D 4.3, D 5.3 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 Screen capture of map of 303(d) listed waters in basin (from Ecology website) D 3.1, D 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) D 3.3 Riverine Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 Hydroperiods H 1.2 Ponded depressions R 1.1 Boundary of area within 150 ft of the wetland (can be added to another figure) R 2.4 Plant cover of trees, shrubs, and herbaceous plants R 1.2, R 4.2 Width of unit vs. width of stream (can be added to another figure) R 4.1 Map of the contributing basin R 2.2, R 2.3, R 5.2 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 Screen capture of map of 303(d) listed waters in basin (from Ecology website) R 3.1 Screen capture of list of TMDLs for WRIA in which unit is found (from web) R 3.2, R 3.3 Lake Fringe Wetlands Map of: To answer questions: Figure # Cowardin plant classes L 1. 1, L 4.1, H 1. 1, H 1.4 Plant cover of trees, shrubs, and herbaceous plants L 1.2 Boundary of area within 150 ft of the wetland (can be added to another figure) L 2.2 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 Screen capture of map of 303(d) listed waters in basin (from Ecology website) L 3.1, L 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) L 3.3 Slope Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 Hydroperiods H 1.2 Plant cover of dense trees, shrubs, and herbaceous plants S 1.3 Plant cover of dense, rigid trees, shrubs, and herbaceous plants (can be added to figure above) S 4.1 Boundary of 150 ft buffer (can be added to another figure) S 2.1, S 5.1 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 Screen capture of map of 303(d) listed waters in basin (from Ecology website) S 3.1, S 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) S 3.3 Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands C and D HGM Classification of Wetlands in Western Washington 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. 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 Ifyour 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 Ifyour 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-goto5 ® 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. ❑ 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 Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands C and D 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at sometime during the year? This means that any outlet, if present, is higher than the interior of the wetland. ®NO-goto7 ❑ 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. ❑ 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 Ifyou are still unable to determine which of the above criteria apply to your wetland, or ifyou have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands C and D 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 Depressions cover > Yz area of wetland points = 4 2 Depressions present but cover < Yz area of wetland points = 2 No depressions present points = 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 plants > 6 in high) > Z Herbaceous ( ) p g/3 area of the wetland points = 6 8 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 Total for R 1 Add the points in the boxes above 10 Rating of Site Potential If score is:F-1 12-16 = H M6-11 = M F-1 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 Yes = 1 No = 0 0 Total for R 2 Add the points in the boxes above 4 Rating of Landscape Potential If score is:M3-6 = H F-1 1 or 2 = M F0 = 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? 1 Yes=1 No=O R 3.2. Is the wetland along a stream or river that has TMDL limits for nutrients, toxics, or pathogens? Yes=1 No=O 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:F-1 2-4 = H M1 = M F-1 0 = L Record the rating on the first page Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands C and D 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 4 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 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 7 Forest or shrub for > 1/io area OR emergent plants > 1/3 area points = 4 Plants do not meet above criteria points = 0 Total for R 4 Add the points in the boxes above 11 Rating of Site Potential If score is:_n12-16 = 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 0 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 0 Total for R 5 Add the points in the boxes above 1 Rating of Landscape Potential If score is:E_3 = H E_1 or 2 = M 0_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 0 Surface flooding problems are in a sub -basin farther down -gradient points = 1 No flooding problems anywhere downstream points = 0 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=O 0 Total for R 6 Add the points in the boxes above 0 Rating of Value If score is:F-1 2-4 = H F-1 1 = M [;� 0 = L Record the rating on the first page Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands C and D HABITAT FUNCTIONS - These questions apply to wetlands of all HGM classes. 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 % 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 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 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 % 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 2 ® 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 H 1.3. Richness of plant species Count the number of plant species in the wetland that cover at least 10 ftz. Different patches of the some 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 1 If you counted: > 19 species points = 2 5 - 19 species points = 1 < 5 species points = 0 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. O 0 2 None = 0 points Low = 1 point Moderate = 2 points All three diagrams in this row are HIGH = 3points Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands C and D 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) 2 ❑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 % 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) Total for H 1 Add the points in the boxes above 8 Rating of Site Potential If score is: 1 1 15-18 = H IXI 7-14 = M IXI 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 habitat3+ [(% moderate and low intensity land uses)/2]0_ = 3% If total accessible habitat is: > 1/3 (33.3%) of 1 km Polygon points = 3 0 20-33% of 1 km Polygon points = 2 10-19% of 1 km Polygon points = 1 < 10% of 1 km Polygon points = 0 H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: % undisturbed habitat_12 + [(% moderate and low intensity land uses)/2]_2.5_ = 12.5% Undisturbed habitat > 50% of Polygon points = 3 2 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 H 2.3. Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points = (- 2) -2 <_ 50% of 1 km Polygon is high intensity points = 0 Total for H 2 Add the points in the boxes above 0 Rating of Landscape Potential If score is:JL] 4-6 = H U 1-3 = M X1 < 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 2 ❑ 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 Rating of Value If score is:❑L2 = H " 1 = M " 0 = L Record the rating on the first page Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 11 Wetlands C and D 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/12ublications/001651wdfw00165.pdf or access the list from here: http:I/wdfw.wa.gov/conservation/12hsIlist/) 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 multilayered 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 Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetlands C and D CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Wetland Type Category Check off any criteria that apply to the wetland. Circle the category when the appropriate criteria are met. 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? No ❑ Yes = Category I ❑ No - Go to SC 1.2 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 % of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or No unmowed 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 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? ❑ Yes = Category I ❑ No = Not a WHCV No SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://wwwl.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.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 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% No 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 Wetland Rating System for Western WA: 2014 Update 10 Rating Form - Effective January 1, 2015 Wetlands C and D 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 No 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 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? No ❑ 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 % of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or unmowed grassland. ❑ The wetland is larger than 1/10 ac (4350 ftz) ❑Yes = Category I ❑ No = Category 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 No 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 1 ❑ 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 Category of wetland based on Special Characteristics "Not N/A If you answered No for all types, enter Applicable" on Summary Form Wetland Rating System for Western WA: 2014 Update 11 Rating Form - Effective January 1, 2015 Wetlands C and D This page left blank intentionally Wetland Rating System for Western WA: 2014 Update 12 Rating Form - Effective January 1, 2015 PLAN LEGEND C_7 EXISTING WETLAND PALUSTRINE FORESTED, SATURATED ONLY PALUSTRINE SCRUB -SHRUB, SEASONALLY FLOODED 150-FOOT BOUNDARY SEASONAL STREAM FIGURE #A SCALE DRAWN BY: NTS AS DATE 12— COWARDIN AND HYDROPERIOD CLASSES 01-19-2024 EASTSIDE ENVIRONMENTAL PROS, INC. OWEN CRITICAL AREAS REPORT 18500 156th Ave NE, suite 203 EDMONDS, WASHINGTON Woodinville, Washington 99072 FIGURE Bus (425) 949-6659 N 0 0 U W Z.i a Copyright — Eastside Environmental Pros, INC. January 16, 2024 303d Q m ts�er, St ISzai i�lr,l►r �1 > Z Caro I Way a Glen St / fa Z Lt:f k y St Cove / �bs Si ,a Debt Sprague St nl Pbyteld Z ��.• �� [III SI t - E dmonds \� A Will V franca E Andletson A Dayton y '-Onlet r �. z � Mapk war d hit ric St v. c g Aide 1 St d > .Valntd St Q � � Esri Community Maps Contributors, WA State Parks GIS, Esri, TomTom, Garmin, SafeGraph, GeoTechnologies, Inc, METI/NASA, USGS, Bureau of Land Management, EPA, NPS, US Census Bureau, USDA, USFWS E } � y n G IfA fdmoMs St fY shay Main St Cr• « Il 7 .. ,E a 's' L YO94 Pat It Z x m Miles 0 0.1 0.2 0.4 Assessed Water/Sediment Water Category 5 - 303d Category 4C Category 4B Category 4A Category 2 wVO Category 1 Sediment 0 Category 5 - 303d Category 4C ,r Category 4B Category 4A Category 2 Category 1 b SITE 'r- RR� F; V 1 PLAN LEGEND UNDISTURBED HABITAT 5% MODERATELY DISTURBED HABITAT 6% HIGH INTENSITY LAND USE 99% • W r � / Yr•' f�t' IIIIIIC O N �i z FIGURE #C SCALE DRAWN BY: NTS AS DATE MAP OF HABITAT WITHIN 1-KILOMETER 01-19-2024 EASTSIDE ENVIRONMENTAL PROS, INC. OWEN CRITICAL AREAS REPORT 18500 156th Ave NE, Suite 203 EDMONDS, WASHINGTON Woodinville, Washington 99072 FIGURE Bus (42S) 949-66S9 w 0 0 U m q Copyright — Eastside Environmental Pros, INC. ATTACHMENT 3 Corps Antecedent Precipitation Tool. 11 January 2024 This normal precipitation analysis follows the methodology described by Sprecher and Warne (2000). The Corps Antecedent Precipitation application tool was used to determine that normal climatic conditions were present during the 11 January 2024 Site Evaluation. Antecedent Precipitation vs Normal Range based on NOAA's Daily Global Historical Climatology Network 8 6 Q) r— U V I' 2023-11 12 VVL 2 4-01-11 Daily Total 30-Day Rolling Total F--1 30 Year Normal Range ��r �II�IrlJ�1��1��I�J•rZ`��IL1��Ir��1�L�1�1i1�11�i�1_��■ - � Jun Jul 2023 2023 Aug Sep Oct 2023 2023 2023 Coordinates 47.81137655,-122.36477287 Observation Date 2024-01-11 Elevation (ft) 185.286 Drought Index (PDSI) Not available © Figures and tables made b,,- the Antecedent Precipitation Tool US Army Corps version 2.0 of Engineers Developed by: L'.S. Army- Corps of Engineers and ' Arm,,- Engineer Research and E R D C L . S. Development Center Nov Dec 2023 2023 Jan 2024 Feb Mar 2024 2024 Apr May 2024 2024 30 Days Ending 301h %ile (in) 70t" %ile (in) Observed (in) Wetness Condition Condition Value Month Weight Product 2024-01-11 3.862205 6.88937 4.653543 Normal 2 3 6 2023-12-12 4.66811 7.452756 7.035433 Normal 2 2 4 2023-11-12 3.700394 5.147638 5.425197 Wet 3 1 3 Result Normal Conditions - 13 Weather Station Name Coordinates Elevation (ft) Distance (mi) Elevation A Weighted A Days Normal Days Antecedent SEATTLE SAND PT WFO 47.6872,-122.2553 60.039 9.974 125.247 5.737 10916 90 SEATTLE URBAN SITE 47.65, -122.3 19.029 3.306 41.01 1.623 62 0 SEATTLE BOEING FLD 47.5456,-122.3147 24.934 10.167 35.105 4.932 221 0 RENTON MUNI AP 47.495,-122.2144 18.045 13.416 41.994 6.601 54 0 MONROE 47.8453,-121.9944 120.079 16.314 60.04 8.321 98 0 KENT 47.4172,-122.2433 28.871 18.664 31.168 8.981 1 0