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REVIEWED PLN RESUB1 BLD2023-1300+WETLAND REPORT+7.2.2024_10.52.00_AM+4354903RESUB Jul 02 2024 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT Eastside Environmental Pros 20June 2024 ............... Reviewed by City of Edmonds ; Caleb MacIlvaine Planning Division -------------- Via email:-caleb.macilvaine@gmail.com - REFERENCE: Snohomish County Tax Parcel 0059920000-0300 SUBJECT: Critical Areas Report Dear Caleb, EE-474 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 0.27-acre Snohomish County tax parcel (0058820000-0300) located at 9222183=d Place SW in Edmonds, Washington. The Public Land Survey System location of the Site is the Southeastern quarter of Section 13, Township 27 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. Two decks are onsite, one along the northern wall and one along the southern wall of the single- family residence. The Site is bordered to the north by 183=d Place SW, and to the south, east, and west by developed single-family residence parcels. Ornamental species comprise most 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), and Robert's herb (Geranium robertianum). Topography onsite is sloped downward from the south to the north. The lowest elevation onsite is located within the northwestern corner at approximately 206 feet, and the highest elevation onsite is located along the southeastern corner at approximately 220 feet. METHODOLOGY The Study Area was evaluated for the presence of critical areas on 21 May 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 streams were determined in accordance with EMC §23.50.010 and EMC §23.90.010.1 respectively. Wetland Determination Datasheets were recorded within representative locations on the Site (Attachment 1). Climatic conditions were evaluated through the Army Corps of Engineers Antecedent Precipitation Tool application (Attachment 2). Climatic conditions during the Site visit were wetter than normal. Photos are located at the end of the report, before the figures section. ONSITE INVESTIGATION RESULTS No critical areas were identified onsite during the Site Evaluation on 21 M!j 2� One wetland is mapped offsite within Hutt Park but this area is located approximately 385 feet away and is outside of the Study Area according to the current Edmonds GIS (2024). One storm drainage feature is mapped by the City of Edmonds and was identified during the Site Evaluation (Figure 1). A sample point was established within this stormwater drainage path and does not meet wetland criteria. STORMWATER DITCH A stormwater ditch is located within the southern and western portions of the Site (Photo 1). This feature, documented by the City of Edmonds, originates offsite from runoff from rooftops and roads in southeastern neighborhoods. It is characterized by a vegetated slight swale that was recently lined with some river rock. The stormwater ditch enters through the southern boundary of the site, flows northward during periods of heavy precipitation, passes through a small notched concrete area, then flows offsite onto a neighboring property within another slight swale, and finally enters a stormwater drain before being piped entirely underground. This stormwater ditch does not have a defined channel or sorted material. To meet the definition of a stream, a surface water feature must contain these characteristics. It is explicitly stated within the City of Edmonds Critical Areas Code that "irrigation ditches, canals, storm or surface water runoff devices (drainage ditches) or other entirely artificial watercourses unless they are used by salmonids or used to convey streams naturally occurring prior to the construction of such watercourse," are excluded from the definition of stream per EMC §23.40.005. This feature lacks the capacity, connectivity, and physical characteristics necessary to support fish habitation; and therefore, this stormwater ditch should not be regulated. Additionally, the Washington Department of Fish and Wildlife conducted a site visit on 12 June 2024, to assess the regulatory status of this feature. Their thorough research and onsite observations determined that no connections to regulated features were present, and therefore, this feature is unlikely to be regulated (Attachment 3). SUMMARY A critical areas evaluation was completed on the subject property (Snohomish County TPN: 0058820000-0300) on 21 May 2024. One wetland is located within Hutt Park approximately 385 feet to the south of the Site and is outside of the Study Area. During the Site evaluation, one stormwater drainage ditch was identified. For further clarification, this feature has been determined by the Washington Department of Fish and Wildlife on 12 June 2024 as an unregulated feature. No other critical areas were identified within the Study Area and any future development onsite does not require critical areas mitigation. 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. Emily Newton-Weideman Ecologist mac, _4 co 4&40L W 9 KELi.EN MAIAN" Kellen Maloney, PWS' °*0 3435 PWS Principal Ecologist, ss*OpqL `p#0 Attachments: Photos Figures 1. Wetland Determination Datasheets 2. 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 FIGURES Figure 1: Vicinity Map better City of Edmonds Map Title r, Legend Syth olm eatlm Edi yl w • � Mn' Whil, Project Site 11 month, Sit I Same O • immem B o m wnlowill 00 Corned, -O cum.r.•m.. — Balboni NOUNTLAKETERFACE To END InFORIEUNE, No ITATE Do Son = o«m r.<ailrvEDrOWN Ye•raw. Story, oam allybervall 1: 3,031 O Notes wsz •.r 4514 3762 ,•„g.,,.r•rea.r. romwraan •.im.mmm.rrhe.n• ma-.rTHIS Nation IS NOT TO BE USED FOR DES ON OR CONSTRUI N ®cywFmmm «zlm Mry an SVkr< 1 iey.m4y 1.11tmvrrarrnnaumzr mayor may not be Eaton, ATTACHMENT 1 Wetland Determination Datasheets. Eastside Environmental Pros, Inc. 21 May 2024 WETLAND DETERMINATION DATA FORM —Western Mountains, Valleys, and Coast Region Project/Site: CAR City/County: Edmonds Sampling Date:5/21/2024 Applicant/Owner: Caleb Macllvaine State: WA Sampling Point: SP-1 Investigator(s): RB Section, Township, Range: NE - 13 - 27 - 03 Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): None Slope (%): 5 Subregion (LRR): A Lat: 47.832448 Long:-122.357207 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 15 to 30 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.) iUMMAKY Ul- I-INUINUb — Attacn site map snowing 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 a small swaling feature onsite. Wetter than normal climatic conditions present during Site Evaluation. Heavy rain present during the 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. None That Are OBL, FACW, or FAC: 1 (A) 2. Total Number of Dominant 3• Species Across All Strata: 3 (B) 4. Percent of Dominant Species 0 = Total Cover That Are OBL, FACW, or FAC: 33.3% (A/B) Sapling/Shrub Stratum (Plot size: 15 ft) 1. Rubus armeniacus 5 N FAC Prevalence Index worksheet: 2. Prunus caroliniana 20 Y FACU Total % Cover of: Multiply by: 3. Sorbaria sorbifolia 10 Y FACU 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. Poa annua 50 Y FAC Column Totals: (A) (B) 2. Rumex crispus 10 N FAC 3. Ranunculus repens 10 N FAC Prevalence Index = B/A = 4. Athyrium filix-femina 5 N FAC Hydrophytic Vegetation Indicators: 5. Epilobium ciliatum 5 N FACW ❑ Dominance Test is >50% 6. Epuisetum telmateia 5 N FACW ❑ Prevalence Index is :53.0' 7 ❑ Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) 8. ❑ Problematic Hydrophytic Vegetation' (Explain) 85 = 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 15 % Cover of Biotic Crust 0 Present? Yes ❑ No Remarks: 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' Loc' Texture Remarks 0-6 10YR 3/2 100 SLo 6-9 2.5Y 4/1.5 100 10YR 4/3 15 C M S 9-20 2.5Y 4/3 100 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 Soils': ❑ 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 (A11) ❑ 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: The cloest hydric soil indicator (Sandy Redox) requires a layer that is at least 4 inches thick. The qualifying layer is only 3 inches thick; therfore, 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 (69) (MLRA 1, 2, 4A, and 413) 4A, and 413)) ® High Water Table (A2) ❑ Salt Crust (B11) ❑ Drainage Patterns (1310) ® Saturation (A3) ❑ Aquatic Invertebrates (1313) ❑ Dry -Season Water Table (C2) ❑ Water Marks (131) ❑ Hydrogen Sulfide Odor (Cl) ❑ 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 (68) Field Observations: Surface Water Present? Yes ❑ No ® Depth (inches): 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 ATTACHMENT 2 Corps Antecedent Precipitation Tool. 21 May 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 wetter than normal climatic conditions were present during the 21 May 2024 Site Evaluation. Antecedent Precipitation vs Normal Range based on NOAA's Daily Global Historical Climatology Network N Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 2023 2023 2023 2024 2024 2024 2024 2024 2024 2024 2024 2024 Coordinates 47.832325,-122.357109 Observation Date 2024-05-21 Elevation (ft) 221.857 Drought Index (PDSI) Moderate drought (2024-04) © 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 30 Days Ending 301" %ile (in) 70t" %ile (in) Observed (in) Wetness Condition Condition Value Month Weight Product 2024-05-21 1.385039 3.005512 3.062992 Wet 3 3 9 2024-04-21 2.272047 3.609055 2.374016 Normal 2 2 4 2024-03-22 2.604331 4.855512 3.22441 Normal 2 1 2 Result Wetter than Normal - 15 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 11.086 161.818 6.783 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 ATTACHMENT 3 WDFW Correspondence Jesse Dykstra - Habitat Biologist Washington State Department of Fish and Wildlife Region 4, Mill Creek Office 20 June 2024 Kellen Maloney From: Dykstra, Jesse F (DFW) <Jesse.Dykstra @dfw.wa.gov> Sent: Thursday, June 20, 2024 7:58 AM To: Emily Newton-Weideman Cc: Kellen Maloney; Adrianna Scott; Ashley Moyer Subject: RE: Feature Determination for Edmonds Site Hey Emily, Thanks for reaching out. After reviewing the site and our databases, it was challenging to determine the likelihood of regulated waters. However, I was unable to find any connection to a regulated system downstream. Based on my findings, I do not believe that this feature will be regulated. Thank you again for your time. Jesse Dykstra — Habitat Biologist Washington Department of Fish and Wildlife Region 4, Mill Creek Office Cell: (564) 200-3689 Email: Jesse.Dykstra@dfw.wa.gov From: Emily Newton-Weideman <EmilyNW@wetland-consulting.com> Sent: Tuesday, June 18, 2024 12:35 PM To: Dykstra, Jesse F (DFW) <Jesse.Dykstra@dfw.wa.gov> Cc: Kellen Maloney <KMaloney@wetland-consulting.com>; Adrianna Scott <AScott@wetland-consulting.com>; Ashley Moyer <AshleyM@wetland-consulting.com> Subject: RE: Feature Determination for Edmonds Site External Email Hi Jesse, I hope you are doing well. I'm just touching base with you on how the determination went for the Site located at 9222 183rd Pl SW, in Edmonds. We look forward to hearing back from you when you get the opportunity. Best, Emily Newton-Weideman, Ecologist (she/her) www.EastsideEnvironmentalPros.com T: (559) 892-7696