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HomeMy WebLinkAboutCritical Areas Study CRITICAL AREAS STUDY FOR RAD Holdings, LLC – 3112 Talbot Road Tax Parcel No. 302305-9028 Acre Project #13039 Prepared By: Acre Environmental Consulting, LLC. 17715 28th Ave. NE Lake Forest Park, WA 98155 (206) 450-7746 For: RAD Holdings, LLC Attn. Rory Dees 6252 167th Avenue SE Bellevue, WA 98006 September 4, 2013 Revision #1: November 23, 2015 Acre Environmental Consulting, LLC R1: November 23, 2015 Critical Areas Study for – RAD Holdings, LLC – Talbot Rd. Renton, WA Page 1 TABLE OF CONTENTS INTRODUCTION AND BRIEF SITE DESCRIPTION 2 METHODOLOGIES OF CRITICAL AREAS EVALUATION 2 BOUNDARY DETERMINATION FINDINGS 4 EXISTING FUNCTIONS AND VALUES ANALYSIS 6 USE OF THIS REPORT 7 REFERENCES 8 ATTACHMENTS: 1. WETLAND DETERMINATION DATA FORMS (6 DATA POINTS ON-SITE) 2. WETLAND RATING FORM FOR WESTERN WASHINGTON: 2014 UPDATE (1 RATING FORM) 3. CRITICAL AREAS MAP SHEET CA1.00 Acre Environmental Consulting, LLC R1: November 23, 2015 Critical Areas Study for – RAD Holdings, LLC – Talbot Rd. Renton, WA Page 2 INTRODUCTION AND BRIEF SITE DESCRIPTION On July 25, 2013 Acre Environmental Consulting, LLC visited the subject property located at 3112 Talbot Road in the City of Renton, Washington. The purpose of this site visit was to assess and locate regulated critical areas on and adjacent to the subject site. The site is further located as a portion of Section 30, Township 23N, Range 05E, W.M. The tax parcel number for this property is 302305-9028. Per the King County Assessor’s office, the site encompasses approximately 2.3-acres. Surrounding land use is comprised of single family residences. Access to this site is from the west via a gravel driveway that leads from Talbot Road. The subject property has a west aspect slope with the western portion occupied by two single-family residences and maintained lawn. The eastern portion of the site is comprised of established forest with a Category III wetland that extends off-site to the east and south. In the City of Renton, Category III wetlands with moderate habitat scores (5 to 7 points) adjacent to moderate or high impact land uses receive a 100-foot standard buffer measured from the delineated wetland edge. METHODOLOGIES OF CRITICAL AREAS EVALUATION In July of 2013, Acre Environmental Consulting, LLC conducted a site visit to locate and verify wetlands and streams occurring on and adjacent to the subject site. The methods used for delineating, classifying, and rating the wetlands and streams in the project area are consistent with current Federal, State, and City of Renton requirements. At the time of our July 25, 2013 site investigation, the weather was sunny with a temperature of 68 degrees Fahrenheit. Acre Environmental Consulting, LLC used the routine methodologies described in the Washington State Wetlands Identification and Delineation Manual (Washington State Department of Ecology Publication #96-94, March 1997) to make a determination regarding regulated wetlands. In addition, Acre Environmental Consulting, LLC evaluated the site using the U.S. Army Corps of Engineers Wetland Delineation Manual produced in 1987 and the U.S. Army Corps of Engineers Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region produced in May 2010 (hereinafter referred to as “the Corps Regional Supplement”). The Corps Regional Supplement is designed for concurrent use with the 1987 Corps Wetland Delineation Manual and all subsequent versions. The 2010 Regional Supplement provides technical guidance and procedures for identifying and delineating wetlands that may be subject to regulatory jurisdiction under Section 404 of the Clean Water Act. Where differences in the two documents occur, the Corps Regional Supplement takes precedence over the Corps Manual for applications in the Western Mountains, Valleys, and Coast Region. Acre Environmental Consulting, LLC R1: November 23, 2015 Critical Areas Study for – RAD Holdings, LLC – Talbot Rd. Renton, WA Page 3 According to the federal and state methodologies described above, identification of wetlands is based on a three-factor approach involving indicators of hydrophytic vegetation, hydric soils, and the presence or evidence of persistent hydrology. Except where noted in the manuals, the three-factor approach discussed above requires positive indicators of hydrophytic vegetation, hydric soils, and wetland hydrology, to make a determination that an area is a regulated wetland. Using the aforementioned manuals, the procedure for making a wetland determination is as follows: 1.) Examination of the site for hydrophytic vegetation (species present/percent cover); 2.) Examination for the presence of hydric soils in areas where hydrophytic vegetation is present; and 3.) The final step is determining if wetland hydrology exists in the area examined under the first two steps. Per industry standards, Acre Environmental Consulting, LLC examined the entire project site. Per current City of Renton requirements, Acre Environmental Consulting, LLC also assessed adjacent properties within 300 feet of the proposed project limits, to the maximum extent possible without entering adjacent properties. While a detailed assessment of Critical Areas on adjacent properties was not possible due to the lack of legal access, Acre Environmental Consulting, LLC conducted a review of all available information to assess the presence of off-site Critical Areas within 300 feet of the subject site. This review is necessary to determine if any regulated Critical Areas exist off-site which would cause associated protective buffers to extend onto the property and affect the development proposal. In addition to on-site field reviews, Acre Environmental Consulting, LLC examined aerial photographs and topographical data (elevation contours) on King County’s interactive mapping system (iMAP). Soil survey maps produced by the Natural Resources Conservation Service (NRCS), National Wetlands Inventory (NWI) maps produced by the U.S. Fish and Wildlife Service (USFWS), SalmonScape fish distribution maps produced by the Washington Department of Fish and Wildlife (WDFW), and StreamNet fish distribution maps produced by Pacific States Marine Fisheries Commission were also evaluated by Acre Environmental Consulting, LLC as part of this project consultation. Acre Environmental Consulting, LLC R1: November 23, 2015 Critical Areas Study for – RAD Holdings, LLC – Talbot Rd. Renton, WA Page 4 BOUNDARY DETERMINATION FINDINGS Wetlands were classified according to the U.S. Fish and Wildlife Service (USFWS) Cowardin system Classification of Wetlands and Deepwater Habitats of the United States (Cowardin et al., 1979) and rated, by categories, rated, by categories according to the Washington State Department of Ecology Wetland Rating Form for Western Washington: 2014 Update as required by the City of Renton Municipal Code Section 4-3-050 (Critical Areas Regulations). Buffers are also determined by this chapter. Wetland A Cowardin: Palustrine, Forested wetland, Broad-leaved Deciduous, Seasonally Flooded/Saturated (PFO1E) Ecology Rating: Category III City of Renton Rating: Category III, 100’ Buffer This wetland is located in the eastern portion of the subject site and extends off-site to the east and south. This hydrogeomorphic (HGM) class depressional wetland received a total score for functions of 19 points (6 points for Water Quality Functions, 7 points for Hydrologic Functions, and 6 points for Habitat Functions) on the DOE Wetland Rating Form for Western Washington: 2014 Update. Wetlands with scores between 16 and 19 points for all functions are classified as Category III wetlands, per RMC 4-03-050(G)(2). In the Renton, Category III wetlands with habitat scores between 5 and 7 points adjacent to moderate or high intensity land use, typically receive 100-foot protective buffers from their delineated edge. Vegetation in this wetland is represented by a canopy of Oregon ash (Fraxinus latifolia, FacW) and black cottonwood (Populus balsamifera, Fac), with and understory comprised of red osier dogwood (Cornus sericea, FacW), hardhack (Spiraea douglasii, FacW), Himalayan blackberry (Rubus armeniacus, FacU), reed canarygrass (Phalaris arundinacea, FacW), creeping buttercup (Ranunculus repens, FacW), and sword fern (Polystichum munitum, FacU) on hummocks. Soils in this wetland have a Munsell color of very dark greyish brown (10YR 3/2) with redoximorphic features of brown (10YR 4/3), and a texture of silt loam from 0 to 18 inches below the surface. Soils in this wetland were saturated at 12 inches below the surface during our July 2013 site visit. Acre Environmental Consulting, LLC R1: November 23, 2015 Critical Areas Study for – RAD Holdings, LLC – Talbot Rd. Renton, WA Page 5 Non - Wetland Vegetation in the western portion of the property is comprised of maintained lawn represented by tall fescue (Schedonorus arundinaceu, Fac), blue wildrye (Elymus glaucus, FacU), hairy Cat’s- ear (Hypochaeris radicata, FacU), velvetgrass (Holcus lanatus, Fac), colonial bentgrass (Agrostis tenuis, Fac), creeping buttercup (Ranunculus repens, Fac), and white clover (Trifolium repens, Fac). The lawn is interspersed with patches of Himalayan blackberry (Rubus armeniacus, FacU) and scattered trees, including big leaf maple (Acer macrophyllum, FacU) and Oregon ash (Fraxinus latifolia, FacW). Vegetation in the eastern part of the site is forested, represented by a canopy of big leaf maple (Acer macrophyllum, FacU), Oregon ash (Fraxinus latifolia, FacW), and western red cedar (Thuja plicata, Fac), with snowberry (Symphoricarpos albus, FacU), osoberry (Oemleria cerasiformis, FacU), Himalayan blackberry (Rubus armeniacus, FacU), hazelnut (Corylus cornuta, FacU), Oceanspray (Holodiscus discolor, FacU), thimbelberry (Rubus parviflorus, FacU), dewberry (Rubus ursinus, FacU), and sword fern (Polystichum munitum, FacU), in the understory. Typical soils in the non-wetland portions of the site have a Munsell color of very dark greyish brown (10YR 3/2), with redoximorphic features of brown (10YR 4/3), and a texture of silt loam from 0 to 18 inches below the surface. Soils in the non-wetland portions of this property were dry during our July 2013 site visit. NATURAL RESOURCE CONSERVATION SERVICE SOILS DESCRIPTION: The Natural Resources Conservation Service (NRCS) mapped the subject property as being underlain by Alderwood gravelly sandy loam, 6 to 15 percent slopes. The NRCS describes Alderwood gravelly sandy loam, 6 to 15 percent slopes as rolling with irregularly shaped areas ranging from 10 to about 600 acres in size. The A horizon ranges from very dark brown to dark brown. The B horizon is dark brown, grayish brown, and dark yellowish brown. Permeability is moderately rapid in the surface layer and subsoil and very slow in the substratum. Available water capacity is described as low. Included within this soil unit are the poorly drained Norma, Bellingham, Seattle, Tukwila, Shalcar soils, and Alderwood soils that have slopes more gentle or steeper than 6 to 15 percent. Included soil units make up no more than 30 percent of the total acreage. Acre Environmental Consulting, LLC R1: November 23, 2015 Critical Areas Study for – RAD Holdings, LLC – Talbot Rd. Renton, WA Page 6 EXISTING FUNCTIONS AND VALUES ANALYSIS The methodologies for this functions and values analysis are based on professional opinion developed through past field analyses and interpretations. This assessment pertains specifically to the subject wetland, but is typical for assessments of similar systems throughout western Washington. The three main functions provided by wetlands include water quality, stormwater / hydrologic control, and wildlife habitat. The wetland and buffer on the subject site are forested, dominated by native trees and shrubs. Wetlands in western Washington often contain necessary wildlife habitat resources such as food, water, thermal cover, and hiding cover in close proximity. The subject wetland and buffer likely provide a moderate level of habitat for a variety of wildlife species. During our site visit, Acre Environmental Consulting, LLC observed an American Crow (Corvus brachyrhynchos), a song sparrow (Melospiza melodia), a black-capped chickadee (Poecile atricapillus), and evidence of a common raccoon (Procyon lotor), using the subject site. Due to its vegetative structure, the subject wetland provides habitat for use by terrestrial wildlife species including birds and mammals. The wetland and associated buffer provide protected habitat, which becomes increasingly important as areas become further populated with humans and habitat areas become fragmented. Habitat fragmentation and isolation from other resources resulting from the surrounding development serves to limit the habitat values that the subject wetland and buffer provide for wildlife. The established vegetation within the wetland and associated buffer on this site serves to intercept rain fall before it strikes the soil, thereby reducing erosion and improving water quality. Furthermore, the dense vegetation and adsorbent soils serve to trap sediment and pollutants and provide increased water quality functions that aid in a reduction of sediment which results in cleaner water leaving the site. Acre Environmental Consulting, LLC R1: November 23, 2015 Critical Areas Study for – RAD Holdings, LLC – Talbot Rd. Renton, WA Page 7 TERMS & CONDITIONS The environmental consulting work conducted, including this Critical Areas Study (the “Services”) is supplied to Rad Holdings, LLC (the “Client”) as a means of determining whether any wetlands, streams, and/or fish and wildlife habitats regulated by the City of Renton Critical Areas Regulations exist on, or within 300 feet of the site. The Services are provided in accordance with the following General Terms and Conditions (the “Terms”). In accepting the Services provided by Acre Environmental Consulting, LLC (“Acre”), the Client voluntarily enters into and agrees to the binding effect of the following Terms. This report is intended to provide information deemed relevant in the Client's attempt to comply with the regulations currently in effect. The work for this report has conformed to the standard of care employed by professional ecologists in the Pacific Northwest. All other representations or warranties, whether express or implied, are hereby disclaimed concerning the work or this report. This report is based largely on readily observable conditions and, to a lesser extent, on readily ascertainable conditions. No attempt has been made to determine hidden or concealed conditions. If such conditions exist or arise, the information contained in this report may be rendered inaccurate or incomplete based upon those conditions. Acre acts solely as an independent contractor in providing the Services to the Client, and nothing in the provision of such Services shall be construed as creating an agency, partnership, joint venture or other similar legal relationship between Acre and the Client. Please note that Acre did not provide detailed analyses of other permitting requirements not discussed in this report (i.e., structural, drainage, geotechnical, or engineering requirements). The laws applicable to Critical Areas are subject to varying interpretations. While Acre observed professional industry standards when completing this review, the information included in this report does not guarantee approval by any federal, state, and/or local permitting agencies. Therefore, all work on this property should not commence until permits have been obtained from all applicable agencies. If there are any questions regarding this report, please contact me at 206.450.7746. Acre Environmental Consulting, LLC. Louis Emenhiser Principal Wetland Ecologist Professional Wetland Scientist #1680 Acre Environmental Consulting, LLC R1: November 23, 2015 Critical Areas Study for – RAD Holdings, LLC – Talbot Rd. Renton, WA Page 8 REFERENCES Cowardin, et al, 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S.D.I. Fish and Wildlife Service. FWS/OBS-79/31. December 1979. Environmental Laboratory. (1987). "Corps of Engineers Wetlands Delineation Manual," Technical Report Y-87-1, U.S. Army Engineer Waterways Experiment Station, Vicksburg, Miss. Hruby, T. 2004. Washington State wetland rating system for western Washington – Revised. Washington State Department of Ecology Publication # 04-06-025. King County iMAP: Interactive Mapping Tool. Administered by the City of Kirkland GIS Center. http://www.kingcounty.gov/operations/gis/Maps/iMAP.aspx. Website last visited August 16, 2013. Lichv ar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phy toneuron 2013- 49: 1-241. Renton Municipal Code. Section 4-3-050 (Critical Areas Regulations). Renton, Washington. SalmonScape. Interactive Mapping website administered by the Washington Department of Fish and Wildlife. http://wdfw.wa.gov/mapping/salmonscape/index.html. Website last visited on August 16, 2013. StreamNet. Fish Data for the Northwest. Administered by the Pacific States Marine Fisheries Commission. http://www.streamnet.org/. Website last visited on August 16, 2013. U.S. Army Corps of Engineers (2010). "Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (Version 2.0)," ERDC/EL TR- 10-3, U.S. Army Engineer Research and Development Center, Vicksburg, MS. U.S. Fish and Wildlife Service. National Wetlands Inventory Wetlands Mapper. http://107.20.228.18/Wetlands/WetlandsMapper.html#. Last updated July 8, 2013. Website last visited on August 16, 2013. Washington State Wetlands Identification and Delineation Manual. Washington State Department of Ecology. Publication #96-94. March 1997. Web Soil Survey. United States Department of Agriculture. Natural Resources Conservation Service. http://websoilsurvey.nrcs.usda.gov/app/HomePage.htm. Website last visited on August 16, 2013. 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: City/County: Sampling Date: Applicant/Owner: State: Sampling Point: Investigator(s): Section, Township, Range: Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%): Subregion (LRR): Lat: Long: Datum: Soil Map Unit Name: NWI classification: Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No Remarks: VEGETATION – Use scientific names of plants. Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: (A) Total Number of Dominant Species Across All Strata: (B) Percent of Dominant Species That Are OBL, FACW, or FAC: (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is 3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) Wetland Non-Vascular Plants1 Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Absolute Dominant Indicator Tree Stratum (Plot size: ) % Cover Species? Status 1. 2. 3. 4. = Total Cover Sapling/Shrub Stratum (Plot size: ) 1. 2. 3. 4. 5. = Total Cover Herb Stratum (Plot size: ) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. = Total Cover Woody Vine Stratum (Plot size: ) 1. 2. = Total Cover % Bare Ground in Herb Stratum Hydrophytic Vegetation Present? Yes No Remarks: RAD Holdings, LLC King County / Renton 07.25.13 RAD Holdings, LLC WA DP1 Louis Emenhiser S30, T23N, R5E, W.M. Terrace Concave 2% LRR-A 47.4520 -122.2076 Alderwood gravelly sandy loam, 6 to 15 percent slopes PFO1E Wetland A 30 meters Populus balsamifera 60 30 90 Y Y FacW Fac Fraxinus latifolia 6 7 10 meters 86 Cornus alba Spiraea douglasii Rubus armeniacus 20 20 10 50 Y Y Y FacW FacW FacU 00 160 320 60 180 1 meter 15 60 Ranunculus repens Polystichum munitum 60 30 5 95 Y Y N FacW Fac FacU 00 Phalaris arundinacea 235 560 2.38 5 ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 1Type: C=Concentration, D=Depletion, 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 (A1) Sandy Redox (S5) 2 cm Muck (A10) Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2) Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Other (Explain in Remarks) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present, Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2, High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B) Saturation (A3) Salt Crust (B11) Drainage Patterns (B10) Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A) Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): Water Table Present? Yes No Depth (inches): Saturation Present? Yes No Depth (inches): (includes capillary fringe) Wetland Hydrology Present? Yes No Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: DP1 0-18 10YR 3/2 95 10YR 4/3 5 C M silt loam 15 12 ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔✔ 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: City/County: Sampling Date: Applicant/Owner: State: Sampling Point: Investigator(s): Section, Township, Range: Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%): Subregion (LRR): Lat: Long: Datum: Soil Map Unit Name: NWI classification: Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No Remarks: VEGETATION – Use scientific names of plants. Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: (A) Total Number of Dominant Species Across All Strata: (B) Percent of Dominant Species That Are OBL, FACW, or FAC: (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is 3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) Wetland Non-Vascular Plants1 Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Absolute Dominant Indicator Tree Stratum (Plot size: ) % Cover Species? Status 1. 2. 3. 4. = Total Cover Sapling/Shrub Stratum (Plot size: ) 1. 2. 3. 4. 5. = Total Cover Herb Stratum (Plot size: ) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. = Total Cover Woody Vine Stratum (Plot size: ) 1. 2. = Total Cover % Bare Ground in Herb Stratum Hydrophytic Vegetation Present? Yes No Remarks: RAD Holdings, LLC King County / Renton 07.25.13 RAD Holdings, LLC WA DP2 Louis Emenhiser S30, T23N, R5E, W.M. Hillslope Convex 7 % LRR-A 47.4520 -122.2079 Alderwood gravelly sandy loam, 6 to 15 percent slopes Non-wetland west of Wetland A. 30 meters Thuja plicata 70 20 90 Y Y FacU Fac Acer macrophyllum 1 5 10 meters 20 Corylus cornuta Oemleria cerasiformis Rubus armeniacus 30 30 5 65 Y Y N FacU FacU FacU 00 00 20 60 1 meter 205 820 Rubus ursinus 60 10 70 Y N FacU FacU 00 Polystichum munitum 225 880 3.91 10 ✔ ✔ ✔ ✔ ✔ ✔✔ US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 1Type: C=Concentration, D=Depletion, 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 (A1) Sandy Redox (S5) 2 cm Muck (A10) Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2) Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Other (Explain in Remarks) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present, Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2, High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B) Saturation (A3) Salt Crust (B11) Drainage Patterns (B10) Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A) Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): Water Table Present? Yes No Depth (inches): Saturation Present? Yes No Depth (inches): (includes capillary fringe) Wetland Hydrology Present? Yes No Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: DP2 0-18 10YR 3/2 95 10YR 3/3 5 C M silt loam ✔ ✔ ✔ ✔ ✔✔ 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: City/County: Sampling Date: Applicant/Owner: State: Sampling Point: Investigator(s): Section, Township, Range: Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%): Subregion (LRR): Lat: Long: Datum: Soil Map Unit Name: NWI classification: Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No Remarks: VEGETATION – Use scientific names of plants. Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: (A) Total Number of Dominant Species Across All Strata: (B) Percent of Dominant Species That Are OBL, FACW, or FAC: (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is 3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) Wetland Non-Vascular Plants1 Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Absolute Dominant Indicator Tree Stratum (Plot size: ) % Cover Species? Status 1. 2. 3. 4. = Total Cover Sapling/Shrub Stratum (Plot size: ) 1. 2. 3. 4. 5. = Total Cover Herb Stratum (Plot size: ) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. = Total Cover Woody Vine Stratum (Plot size: ) 1. 2. = Total Cover % Bare Ground in Herb Stratum Hydrophytic Vegetation Present? Yes No Remarks: RAD Holdings, LLC King County / Renton 07.25.13 RAD Holdings, LLC WA DP3 Louis Emenhiser S30, T23N, R5E, W.M. Hillslope Convex 8 % LRR-A 47.4519 -122.2085 Alderwood gravelly sandy loam, 6 to 15 percent slopes Non-wetland on the forested slope. 30 meters Fraxinus latifolia 60 30 90 Y Y FacU FacW Acer macrophyllum 1 6 10 meters 16 Symphoricarpos albus Oemleria cerasiformis Rubus armeniacus Holodiscus discolor Rubus parviflorus 30 20 20 10 10 90 Y Y Y N N FacU FacU FacU FacU FacU 00 30 60 00 1 meter 160 640 10 10 Y FacU 00 Polystichum munitum 190 700 3.68 5 ✔ ✔ ✔ ✔ ✔ ✔✔ US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 1Type: C=Concentration, D=Depletion, 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 (A1) Sandy Redox (S5) 2 cm Muck (A10) Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2) Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Other (Explain in Remarks) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present, Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2, High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B) Saturation (A3) Salt Crust (B11) Drainage Patterns (B10) Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A) Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): Water Table Present? Yes No Depth (inches): Saturation Present? Yes No Depth (inches): (includes capillary fringe) Wetland Hydrology Present? Yes No Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: DP3 0-18 10YR 3/2 100 silt loam ✔ ✔ ✔ ✔✔ 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: City/County: Sampling Date: Applicant/Owner: State: Sampling Point: Investigator(s): Section, Township, Range: Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%): Subregion (LRR): Lat: Long: Datum: Soil Map Unit Name: NWI classification: Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No Remarks: VEGETATION – Use scientific names of plants. Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: (A) Total Number of Dominant Species Across All Strata: (B) Percent of Dominant Species That Are OBL, FACW, or FAC: (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is 3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) Wetland Non-Vascular Plants1 Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Absolute Dominant Indicator Tree Stratum (Plot size: ) % Cover Species? Status 1. 2. 3. 4. = Total Cover Sapling/Shrub Stratum (Plot size: ) 1. 2. 3. 4. 5. = Total Cover Herb Stratum (Plot size: ) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. = Total Cover Woody Vine Stratum (Plot size: ) 1. 2. = Total Cover % Bare Ground in Herb Stratum Hydrophytic Vegetation Present? Yes No Remarks: RAD Holdings, LLC King County / Renton 07.25.13 RAD Holdings, LLC WA DP4 Louis Emenhiser S30, T23N, R5E, W.M. Hillslope Convex 4 % LRR-A 47.4520 -122.2094 Alderwood gravelly sandy loam, 6 to 15 percent slopes Non-wetland in maintained lawn. 30 meters 20 20 YFacWFraxinus latifolia 2 4 10 meters 50 00 20 40 50 150 1 meter 50 200 Elymus glaucus Hypochaeris radicata Agrostis tenuis Holcus lanatus Ranunculus repens Trifolium pratense 20 20 20 10 10 10 10 100 Y Y Y N N N N Fac FacU FacU Fac Fac Fac FacU 00 Schedonorus arundinaceus 120 390 3.25 5 ✔ ✔ ✔ ✔ ✔ ✔✔ US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 1Type: C=Concentration, D=Depletion, 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 (A1) Sandy Redox (S5) 2 cm Muck (A10) Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2) Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Other (Explain in Remarks) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present, Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2, High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B) Saturation (A3) Salt Crust (B11) Drainage Patterns (B10) Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A) Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): Water Table Present? Yes No Depth (inches): Saturation Present? Yes No Depth (inches): (includes capillary fringe) Wetland Hydrology Present? Yes No Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: DP4 0-18 10YR 3/2 95 10YR 4/3 5 C M silt loam ✔ ✔ ✔ ✔ ✔✔ 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: City/County: Sampling Date: Applicant/Owner: State: Sampling Point: Investigator(s): Section, Township, Range: Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%): Subregion (LRR): Lat: Long: Datum: Soil Map Unit Name: NWI classification: Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No Remarks: VEGETATION – Use scientific names of plants. Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: (A) Total Number of Dominant Species Across All Strata: (B) Percent of Dominant Species That Are OBL, FACW, or FAC: (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is 3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) Wetland Non-Vascular Plants1 Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Absolute Dominant Indicator Tree Stratum (Plot size: ) % Cover Species? Status 1. 2. 3. 4. = Total Cover Sapling/Shrub Stratum (Plot size: ) 1. 2. 3. 4. 5. = Total Cover Herb Stratum (Plot size: ) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. = Total Cover Woody Vine Stratum (Plot size: ) 1. 2. = Total Cover % Bare Ground in Herb Stratum Hydrophytic Vegetation Present? Yes No Remarks: RAD Holdings, LLC King County / Renton 07.25.13 RAD Holdings, LLC WA DP5 Louis Emenhiser S30, T23N, R5E, W.M. Hillslope Convex 4 % LRR-A 47.4519 -122.2097 Alderwood gravelly sandy loam, 6 to 15 percent slopes Non-wetland in maintained lawn / blackberry patch. 30 meters 10 10 YFacWFraxinus latifolia 2 6 10 meters 33 Rubus armeniacus 50 50 YFacU 00 10 20 60 180 1 meter 85 340 Elymus glaucus Hypochaeris radicata Dactylis glomerata Schedonorus arundinaceus Ranunculus repens Agrostis tenuis Conium maculatum Cirsium vulgare 20 10 10 10 10 10 10 5 5 90 Y Y Y Y N N N N N Fac FacU FacU FacU Fac Fac Fac Fac FacU 00 Holcus lanatus 155 540 3.48 0 ✔ ✔ ✔ ✔ ✔ ✔✔ US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 1Type: C=Concentration, D=Depletion, 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 (A1) Sandy Redox (S5) 2 cm Muck (A10) Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2) Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Other (Explain in Remarks) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present, Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2, High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B) Saturation (A3) Salt Crust (B11) Drainage Patterns (B10) Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A) Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): Water Table Present? Yes No Depth (inches): Saturation Present? Yes No Depth (inches): (includes capillary fringe) Wetland Hydrology Present? Yes No Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: DP5 0-18 10YR 3/2 95 10YR 4/3 5 C M silt loam ✔ ✔ ✔ ✔ ✔✔ 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: City/County: Sampling Date: Applicant/Owner: State: Sampling Point: Investigator(s): Section, Township, Range: Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%): Subregion (LRR): Lat: Long: Datum: Soil Map Unit Name: NWI classification: Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No Remarks: VEGETATION – Use scientific names of plants. Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: (A) Total Number of Dominant Species Across All Strata: (B) Percent of Dominant Species That Are OBL, FACW, or FAC: (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is 3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) Wetland Non-Vascular Plants1 Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Absolute Dominant Indicator Tree Stratum (Plot size: ) % Cover Species? Status 1. 2. 3. 4. = Total Cover Sapling/Shrub Stratum (Plot size: ) 1. 2. 3. 4. 5. = Total Cover Herb Stratum (Plot size: ) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. = Total Cover Woody Vine Stratum (Plot size: ) 1. 2. = Total Cover % Bare Ground in Herb Stratum Hydrophytic Vegetation Present? Yes No Remarks: RAD Holdings, LLC King County / Renton 07.25.13 RAD Holdings, LLC WA DP6 Louis Emenhiser S30, T23N, R5E, W.M. Hillslope Convex 16 % LRR-A 47.4519 -122.2100 Alderwood gravelly sandy loam, 6 to 15 percent slopes Non-wetland in blackberry patch. 30 meters 30 30 YFacUAcre macrophyllum 1 4 10 meters 25 Rubus armeniacus Symphoricarpos albus 70 10 80 Y N FacU FacU 00 00 20 60 1 meter 130 520 Ranunculus repens 20 20 40 Y Y FacU Fac 00 Elymus glaucus 150 580 3.86 0 ✔ ✔ ✔ ✔ ✔ ✔✔ US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 1Type: C=Concentration, D=Depletion, 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 (A1) Sandy Redox (S5) 2 cm Muck (A10) Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2) Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Other (Explain in Remarks) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present, Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2, High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B) Saturation (A3) Salt Crust (B11) Drainage Patterns (B10) Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A) Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): Water Table Present? Yes No Depth (inches): Saturation Present? Yes No Depth (inches): (includes capillary fringe) Wetland Hydrology Present? Yes No Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: DP6 0-18 10YR 3/2 100 silt loam ✔ ✔ ✔ ✔✔ SCALE 1" = 200' 2000 400 PREPARED BY:Acre Environmental Consulting, LLC17715 28th Avenue NELake Forest Park, WA 98155Phone: (206) 450-7746Email: louis@acreenvironmental.comRev #:Drawn By:L. EmenhiserAcre Job: 13039Date: 11.23.2015!"#$!"#$%&"’!"()*+&",-*($"./0**+!"#$!"#$%&"’!"()*+&",-*($"./0**+!"#$!"#$%&"’!"()*+&",-*($"./0**+Figure 1 of 5PREPARED FOR:RAD HOLDINGS, LLCATTN. RORY DEES6252 167TH AVE. SEBELLEVUE, WA 98006WETLAND RATING MAPRAD HOLDINGS, LLC - 3112 TALBOT ROADRENTON, WATAX PARCEL NO. 302305-9028RATING ANSWERS FOR WETLAND A D1.1 & D4.1 Wetland has a highly constricted, intermittently flowing outlet. D1.3 Wetland has persistent ungrazed plants > 95% of the area (the wetland is forested). D1.4 Area that is seasonally ponded is >1/2 total area of the wetland. D2.2 & D5.2 Approximately 54% of the area within 150' of Wetland A is in land use that generates pollutants and excess runoff. 150' Pollution generating areas (typ.) RATING ANSWERS FOR WETLAND A D4.3 the contributing basin for Wetland A is ~207,021 square feet in size / the ~18,070 square foot wetland rating unit = 11.45 (basin is 10 to 100 times the area of the unit). D5.3 Greater than 25% of the contributing basin of Wetland A is covered with intensive land uses (primarily residential). PREPARED BY:Acre Environmental Consulting, LLC17715 28th Avenue NELake Forest Park, WA 98155Phone: (206) 450-7746Email: louis@acreenvironmental.comRev #:Drawn By:L. EmenhiserAcre Job: 13039Date: 11.23.2015!"#$!"#$%&"’!"()*+&",-*($"./0**+!"#$!"#$%&"’!"()*+&",-*($"./0**+!"#$!"#$%&"’!"()*+&",-*($"./0**+Figure 2 of 5PREPARED FOR:RAD HOLDINGS, LLCATTN. RORY DEES6252 167TH AVE. SEBELLEVUE, WA 98006WETLAND RATING MAPRAD HOLDINGS, LLC - 3112 TALBOT ROADRENTON, WATAX PARCEL NO. 302305-9028CONTRIBUTING BASIN FOR WETLAND A WETLAND A RATING UNIT SCALE 1" = 200' 2000 400 Rev #: Drawn By: L. Emenhiser Acre Job: 13039 Date: 11.23.2015 !"#$ !"# $ % & " ’ ! " ( ) * +&",- * ($ " ./0**+!"#$ !"# $ % & " ’ ! " ( ) * +&",- * ($ " ./0**+ !"#$!"# $ % & " ’ ! " ( ) * +&",- * ($ " ./0**+Figure 3 of 5 1KM POLYGON MAP (UNDISTURBED & ACCESIBLE HABITAT) RAD HOLDINGS, LLC - 3112 TALBOT ROAD RENTON, WA TAX PARCEL NO. 302305-9028 SUBJECT WETLANDS LEGEND ONE KILOMETER POLYGON LINE HIGH INTENSITY LAND USE MODERATE, AND LOW INTENSITY LAND USE Note: Land use definitions are derived from H2.0 Table 3 of the Wetland Rating System for Western WA: 2014 Update RELATIVELY UNDISTURBED LAND PREPARED FOR: RAD HOLDINGS, LLC ATTN. RORY DEES 6252 167TH AVE. SE BELLEVUE, WA 98006 PREPARED BY: Acre Environmental Consulting, LLC 17715 28th Avenue NE Lake Forest Park, WA 98155 Phone: (206) 450-7746 Email: louis@acreenvironmental.com1 KILO M ET E R RATING ANSWERS FOR WETLAND A (H2.1, H2.2, & H2.3) 1km Area = 35,620,867 sf High Intensity Land Use = 28,735,157 sf (80%) Moderate & Low Intensity Land Use = 3,17,2809 sf (10%) Accessible Moderate & Low Intensty LU = 156,157 sf (4%) Relatively Undisturbed Land Use = 3,713,483 (10%) Accessible Relatively Undisturbed LU = 59,195 sf (1%) SCALE 1" = 1,000' 1,0000 2,000 SUBJECT SITE NTS PREPARED BY:Acre Environmental Consulting, LLC17715 28th Avenue NELake Forest Park, WA 98155Phone: (206) 450-7746Email: louis@acreenvironmental.comRev #:Drawn By:L. EmenhiserAcre Job: 13039Date: 11.23.2015!"#$!"#$%&"’!"()*+&",-*($"./0**+!"#$!"#$%&"’!"()*+&",-*($"./0**+!"#$!"#$%&"’!"()*+&",-*($"./0**+Figure 4 of 5D3.1 The subject wetland is not located within 1 mile of any water listed listed on the 303(d) list. D3.2 The subject wetlands are in the same basin as the Black River which is on the 303(d) list. PREPARED FOR:RAD HOLDINGS, LLCATTN. RORY DEES6252 167TH AVE. SEBELLEVUE, WA 98006DOE 303(d) Waters in Basin (Screen Capture)RAD HOLDINGS, LLC - 3112 TALBOT ROADRENTON, WATAX PARCEL NO. 302305-9028 D3.3 No TMDL's have been identified for the Black River basin. PREPARED BY: Acre Environmental Consulting, LLC 17715 28th Avenue NE Lake Forest Park, WA 98155 Phone: (206) 450-7746 Email: louis@acreenvironmental.comRev #: Drawn By: L. Emenhiser Acre Job: 13039 Date: 11.23.2015 !"#$ !"# $ % & " ’ ! " ( ) * +&",- * ($ " ./0**+!"#$ !"# $ % & " ’ ! " ( ) * +&",- * ($ " ./0**+ !"#$!"# $ % & " ’ ! " ( ) * +&",- * ($ " ./0**+Figure 5 of 5 TMDL'S FOR WRIA 9 (Screen Capture) RAD HOLDINGS, LLC - 3112 TALBOT ROAD RENTON, WA TAX PARCEL NO. 302305-9028 PREPARED FOR: RAD HOLDINGS, LLC ATTN. RORY DEES 6252 167TH AVE. SE BELLEVUE, WA 98006 1921 9 4 1 9 6 2 0 2 202204206208 1 9 8 20 2 202 204 2 0 6 1641 6 8 172 174 17417818218418818813213213413413613613813814214414614810210410610811211411611812412612814815215215415 4 1561581621 66 176 176 184186 186188188 2 0 4 1 9 0 1 9 0 20 0 2 0 0 1 7 0 180 1 8 0 130140140150100110120130150150160190190 200TALBOT RD S.PREPARED FOR:RAD HOLDINGS, LLCATTN. RORY DEES6252 167TH AVE. SEBELLEVUE, WA 98006CRITICAL AREAS MAPRAD HOLDINGS, LLC - 3112 TALBOT ROADRENTON, WATAX PARCEL NO. 302305-9028MAP SHEET: CA1.00PREPARED BY:Acre Environmental Consulting, LLC17715 28th Avenue NELake Forest Park, WA 98155Phone: (206) 450-7746Email: louis@acreenvironmental.comRev # 1: 11.23.15Drawn By:L. EmenhiserAcre Job: 13039Date: 09.04.2013!"#$!"#$%&"’!"()*+&",-*($"./0**+!"#$!"#$%&"’!"()*+&",-*($"./0**+!"#$!"#$%&"’!"()*+&",-*($"./0**+1" = 100' 1000 200 WETLAND BUFFER LEGEND DP2 DATA POINT (6 TOTAL) NGPA SIGN X FENCE (Two rail or other type as approved by Renton) DP3 DP4DP5 DP6 DP2 DP1 EXISTING SFR EXISTING GARAGE EXISTING GRAVEL DRIVE CULVERT 12" CMP WETLAND A CATEGORY III 100' BUFFER X X X X EXISTING SFR 100' BUFFER