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21-103716-Wetland Delineation Report (10-25-2021) COMBINED
WETLAND DELINEATION REPORT Meridian Court Federal Way, Washington August 25, 2021 Updated October 25, 2021 RAEDEKE ASSOCIATES, INC. Wetland & Aquatic Sciences Wildlife Ecology Landscape Architecture 2111 N. Northgate Way Ste. 219 Seattle, WA 98133 206-525-8122 raedeke.com Associates, Inc. Raedeke Report To: Mr. Brian Meister BAU Meister Studio Group 6755 Saranac Street San Diego, CA. 92115 Title: Wetland Delineation Report for Meridian Court Federal Way, Washington Project Number: 2021-052-001 Prepared by: RAEDEKE ASSOCIATES, INC. 2111 N. Northgate Way Ste. 219 Seattle, Washington, 98133 (206) 525-8122 Date: October 25, 2021 Wetland & Aquatic Sciences Wildlife Ecology Landscape Architecture 2111 N. Northgate Way Ste. 219 Seattle, WA 98133 206-525-8122 raedeke.com Associates, Inc. Raedeke Project Manager: Christopher W. Wright Vice President / Soil & Wetland Scientist Project Personnel: Annamaria I. Clark, B.S, WPIT Wetland Ecologist Will Russack, B.S Wetland Technician Shraddha Sawant Landscape Architect Submitted by: Signature Christopher W. Wright Printed Name October 25, 2021 Date iii TABLE OF CONTENTS Page LIST OF FIGURES .......................................................................................................... IV 1.0 INTRODUCTION ........................................................................................................1 1.1 Purpose ..................................................................................................................1 1.2 Project Location .....................................................................................................1 2.0 METHODS ...................................................................................................................2 2.1 Definitions and Methodologies ..............................................................................2 2.2 Background Research ............................................................................................3 2.3 Field Sampling Procedures ....................................................................................3 3.0 EXISTING CONDITIONS ...........................................................................................5 3.1 Results of Background Investigation .....................................................................5 3.2 Results of Field Investigations ...............................................................................5 4.0 REGULATORY CONSIDERATIONS ........................................................................9 4.1 Federal Clean Water Act (U.S. Army Corps of Engineers) ..................................9 4.2 Washington State ...................................................................................................9 4.3 City of Federal Way .............................................................................................10 5.0 PROPOSED PROJECT ..............................................................................................11 6.0 LIMITATIONS ...........................................................................................................13 7.0 LITERATURE CITED ...............................................................................................14 FIGURES ...........................................................................................................................17 APPENDIX A: Field Survey Data ................................................................................ A-1 APPENDIX B: WDOE Rating Forms ............................................................................B-1 APPENDIX C: Proposed Site Plan .................................................................................C-1 iv LIST OF FIGURES Figure Page 1. Regional and Vicinity Map ....................................................................................18 2. U.S.D.A. Soil Conservation Service Soil Survey Map ..........................................19 3. U.S. Fish and Wildlife National Wetland Inventory..............................................20 4. King County iMap .................................................................................................21 5. City of Federal Way Critical Areas Map ...............................................................22 6. Existing Conditions ................................................................................................23 7. Proposed Site Plan with Trail & Buffer Detail ......................................................24 1 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 1.0 INTRODUCTION 1.1 PURPOSE Raedeke Associates, Inc. was retained by BAU Meister Group to identify and delineate any wetlands or streams on the Meridian Court property and adjoining park property located at 31420 23rd Avenue S in Federal Way, Washington. During our site investigation, we collected information on vegetation, soils, and hydrology sufficient to characterize the existing site conditions. This report presents the findings of our background information review and our May 19, 2021 site investigation. It should be noted that during our site investigation we identified and delineated the boundaries of two wetlands on the adjacent park property. This report presents a summary of our findings with regard to wetlands and streams, as well as their likely jurisdictional buffers. This report follows the critical area reporting criteria as outlined in City of Federal Way (2021) code. 1.2 PROJECT LOCATION The Meridian Court project site consists of one parcel 3.7 acres in size located in Federal Way, Washington, and nearest portions of the adjoining City of Federal Way park property (Steel Lake Park) to the east of the site (Figure 1). The property is identified as King County Parcel No. 0921049190, which places the project site in a portion of Section 9, Township 21, Range 4, W.M. Parcel maps retrieved on-line from King County iMap, as well as a property survey prepared by 4Site Surveying & Consulting provided by the client on August 9, 2021, depict the property boundaries. The project site is bordered to the north and south by apartment complexes, to the west by 23rd Avenue South and a shopping center, and Steel Lake Park property to the east. The project site is accessed from 23rd Avenue S, on the western edge of the site. 2 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 2.0 METHODS 2.1 DEFINITIONS AND METHODOLOGIES Wetlands and streams are protected by federal law as well as by state and local regulations. Federal law (Section 404 of the Clean Water Act) prohibits the discharge of dredged or fill material into “Waters of the United States”, including certain wetlands, without a permit from the U.S. Army Corps of Engineers (COE 2021). The COE makes the final determination as to whether an area meets the definition of a wetland and whether the wetland is under their jurisdiction. The COE wetland definition was used to determine if any portions of the project area could be classified as wetland. A wetland is defined as an area “inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances does support, a prevalence of vegetation typically adapted for life in saturated soil conditions” (Federal Register 1986:41251). We based our investigation upon the guidelines of the U. S. Army Corps of Engineers (COE) Wetlands Delineation Manual (Environmental Laboratory 1987) and subsequent amendments and clarifications provided by the COE (1991a, 1991b, 1992, 1994), as updated for this area by the regional supplement to the COE wetland delineation manual for the Western Mountains, Valleys, and Coast Region (COE 2010). The COE wetlands manual is required by state law (WAC 173-22-035, as revised) for all local jurisdictions. Hydrophytic vegetation is defined as “macrophytic plant life growing in water, soil or substrate that is at least periodically deficient in oxygen as a result of excessive water content” (Environmental Laboratory 1987). The U.S. Army Corps of Engineers National Wetland Plant List wetland indicator status (WIS) ratings were used to make this determination (Lichvar et al. 2016). The WIS ratings “reflect the range of estimated probabilities (expressed as a frequency of occurrence) of a species occurring in wetland versus non-wetland across the entire distribution of the species” (Reed 1988:8). Plants are rated, from highest to lowest probability of occurrence in wetlands, as obligate (OBL), facultative wetland (FACW), facultative (FAC), facultative upland (FACU), and upland (UPL), respectively. In general, hydrophytic vegetation is present when the majority of the dominant species are rated OBL, FACW, and FAC. A hydric soil is defined as “a soil that is formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part” (Federal Register 1995: 35681). The morphological characteristics of the soils in the study area were examined to determine whether any could be classified as hydric. According to the 1987 methodology, wetland hydrology could be present if the soils were saturated (sufficient to produce anaerobic conditions) within the majority of the rooting zone (usually the upper 12 inches) for at least 5% of the growing season, which in this 3 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 area is usually at least 2 weeks (COE 1991a). It should be noted, however, that areas having saturation to the surface between 5% and 12% of the growing season may or may not be wetland (COE 1991b). Depending on soil type and drainage characteristics, saturation to the surface would occur if water tables were shallower than about 12 inches below the soil surface during this time period. Positive indicators of wetland hydrology include direct observation of inundation or soil saturation, as well as indirect evidence such as driftlines, watermarks, surface encrustations, and drainage patterns (Environmental Laboratory 1987). Hydrology was further investigated by noting drainage patterns and surface water connections between wetlands and streams within and adjacent to the project area. 2.2 BACKGROUND RESEARCH Prior to conducting our site visit, we reviewed existing background maps and information for the project site from the U.S.D.A. Natural Resource Conservation Service (NRCS 2021) Web Soil Survey, the U.S. Fish and Wildlife (USFWS 2021) National Wetland Inventory (NWI), King County (2021) iMap, and the City of Federal Way (2016 Critical Areas Map to assist in our determination of whether wetlands were present within the property or its vicinity. In addition, we examined current and historical aerial photographs (Google Earth 2021) to assist in the definition of existing plant communities, drainage patterns, and land use. 2.3 FIELD SAMPLING PROCEDURES We conducted a site visit on May 19, 2021 to search for wetlands and streams that may be present on the project site or in the immediate vicinity. In addition, we also collected sufficient information to describe the general landscape conditions of the site. Vegetation, soils, and hydrology were examined in representative portions of the study area according to the procedures described in the Regional Supplement (COE 2010). Plant communities were inventoried, classified, and described during our field investigations. We estimated the percent coverage of each species. Plant identifications were made according to standard taxonomic procedures described in Hitchcock and Cronquist (1976), with nomenclature as updated by the U.S. Army Corps of Engineers National Wetland Plant List (Lichvar et al. 2016). Wetland classification follows the USFWS wetland classification system (Cowardin et al. 1992). We determined the presence of a hydrophytic vegetation community using the procedure described in the Regional Supplement (COE 2010), which requires the use of the dominance test, unless positive indicators of hydric soils and wetland hydrology are also present, in which case the prevalence index or the use of other indicators of a hydrophytic vegetation community as described in the Regional Supplement (COE 2010) may also be required. We excavated pits to at least 18 inches below the soil surface, where possible, in order to describe the soil and hydrologic conditions throughout the study area. We sampled soil at locations that corresponded with vegetation sampling areas and potential wetland 4 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 areas. Soil colors were determined using the Munsell Soil Color Chart (Munsell Color 2009). We used the indicators described in the Regional Supplement (COE 2010) to determine the presence of hydric soils and wetland hydrology. During our site investigations, we identified two wetlands (Wetlands 1 and 2), both located on the Steel Lake Park property just east of the project site. Wetland 1 was delineated in its entirety. Wetland 2 was partially delineated along its western edge. The wetland boundaries were marked using pink and black striped flagging tape. Representative sample plots for both wetlands and non-wetland areas were demarcated with red and white striped flagging tape and labeled accordingly. 5 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 3.0 EXISTING CONDITIONS 3.1 RESULTS OF BACKGROUND INVESTIGATION The USDA NRCS (2021) Web Soil Survey (Figure 2) identifies Alderwood gravelly sandy loam within the limits of the project site. Alderwood soils are not listed as a hydric soil on either the state or national hydric soils list; however, they may contain the following potential hydric soil inclusions: Bellingham, Norma, Shalcar, Seattle, and Tukwila soils (U.S.D.A. Soil Conservation Service 1991, Federal Register 1995). Soil series boundaries or mapping units are mapped from aerial photographs with limited field verification. Thus, the location and extent of boundaries between mapping units may not be accurate for a given parcel of land within the survey area. The USFWS (2021) NWI (Figure 3) does not depict any wetlands on or within immediate vicinity of the project site. Wetlands and streams shown on the NWI are general in terms of location and extent, as they are determined primarily from aerial photograph interpretation. Thus, the number and extent of existing wetlands located within the project area may differ from those marked on the NWI map. The King County (2021) iMap does not depict any wetlands on or in the immediate vicinity of the project site (Figure 4). The most recently available City of Federal Way (2016) Critical Areas Map does depict a short stream segment and connected wetland in the adjoining park parcel east of the project site (Figure 5). 3.2 RESULTS OF FIELD INVESTIGATIONS 3.2.1 Property Description We visited the project site on May 19, 2021 to document the existing site conditions. The majority of the site is a developed senior living community, with two main buildings and parking areas. The northeastern portion of the project site has an open lawn bordered by deciduous trees including big-leaf maple (Acer macrophyllum, FACU). The adjoining parcel to the east of the project site is part of Steel Lake Park and contains second-growth forest comprised of an overstory of Douglas-fir (Pseudotsuga menziesii, FACU), western red cedar (Thuja plicata, FAC), and big-leaf maple. The understory contains a mixture of shrub and herbaceous cover with salmonberry (Rubus spectabilis, FAC), Himalayan blackberry (Rubus armeniacus, FAC), red elderberry (Sambucus racemosa, FACU), pineland swordfern (Polystichum munitum, FACU), and false Solomon’s-seal (Maianthemum dilatatum, FAC) (Appendix A, Sample Plots 1-2, 2-2, and 2-4) Soils in upland portions of the site typically consisted of up to 16 inches of very dark brown (10YR 2/2) to black (10YR 2/1) gravelly sandy loams and lacked indicators of hydric soils. During our site investigation, we did not observe any primary indicators of 6 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 wetland hydrology, including a water table or soil saturation in the upper 18 inches of the soil profile, or any secondary indicators of wetland hydrology (e.g. water-stained leaves, drift deposits, water marks, etc.) within the upland areas (see Appendix A, Sample Plots 1-2, 2-2, and 2-4). 3.2.2 Wetlands During our site investigations, we identified two wetlands located primarily in the central and westerns portions of the Steel Lake Park parcel. Wetlands 1 and 2 are both forested depressional wetlands (Figure 6; see Appendix B for sample plot data). Wetland 1 Wetland 1 is in the west-central portion of the adjoining park parcel, near the northeast corner of the project site. The wetland is a forested depression with scrub-shrub and herbaceous understory and is oriented with a steep slope at its western edge. It is seasonally ponded and does not appear to have any outlet. Vegetation The wetland contains a vegetation community dominated by a canopy of western red- cedar (Thuja plicata, FAC) and red alder (Alnus rubra, FAC) with an understory of salmonberry (Rubus spectabilis, FAC), twinberry (Lonicera involucrata, FACW), piggyback plant (Tolmiea menziesii, FAC), slough sedge (Carex obnupta, OBL), and western lady fern (Athyrium cyclosorum, FAC) (Appendix A, Sample Plot 1-1). Soils and Hydrology Soils within the wetland consist of up to 10 inches of black (10YR 2/1) sandy loam soils underlain by at least four inches of grayish brown (10YR 5/2) loam soils with up to 20% yellowish brown (10YR 5/6) redoximorphic concentrations in the soil matrix. This soil profile meets the criteria of hydric soil indicator A11, depleted below dark surface, according to the COE wetland delineation manual (Environmental Laboratory 1987) and regional supplement (COE 2010). Hydrologic input to the wetland includes surface sheet flow, direct precipitation, and a shallow groundwater table. At the time of our May 19, 2021 site investigation, we observed primary hydrology indicators including saturation 12 inches below the surface and a sparsely vegetated concave surface. Based on our observations, sufficient indicators of wetland hydrology were present per criteria of the COE wetland delineation manual (Environmental Laboratory 1987) and regional supplement (COE 2010) (Sample Plot 1-1). 7 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 Classification and Determination Positive indicators for each of the three wetland parameters were present within Wetland 1 at the time of our site investigation. Therefore, the delineated area meets the necessary criteria for designation as a wetland according to the guidelines of the COE wetland delineation manual (Environmental Laboratory 1987) and the Regional Supplement (COE 2010). Wetland 1 consists of a palustrine, forested (PFO) wetland with three strata according to the USFWS wetland classification system (Cowardin et al. 1992). Wetland Rating We rated Wetland 1 using the 2014 WDOE Wetland Rating System for Western Washington (Hruby 2014), as required by City of Federal Way (2021) code for determination of wetland buffer widths and mitigation ratios (see the attached completed wetland rating form, Appendix B). We determined that Wetland 1 consists of a depressional hydrogeomorphic (HGM) class. Based on our analysis, Wetland 1 meets Category III criteria because it scored a total of 16 points (4 points for habitat function) on the attached rating form. Wetland 2 Wetland 2 extends through much of the central and southwest portion of the Steel Lake Park parcel and appears to originate from a stream or ditch south of 312th street. The wetland is a forested and scrub-shrub depression that drains in the southwest corner through a weir and into a stormwater drain. A berm on the southern end creates conditions that contribute to seasonal ponding in the wetland. Vegetation The forested portion of the wetland contains a vegetation community dominated by an overstory of western red cedar (Thuja plicata, FAC), black cottonwood (Populus balsamifera, FAC), and red alder (Alnus rubra, FAC) with the understory and scrub- shrub portions containing salmonberry (Rubus spectabilis, FAC), Pacific willow (Salix lasiandra, FACW), spiraea (Spiraea douglasii, FACW), red-osier dogwood (Cornus alba, FACW), skunk cabbage (Lysichiton americanus, OBL), slough sedge (Carex obnupta, OBL), and reed canary grass (Phalaris arundinacea, FACW) (Sample Plots 2-1 & 2-3). Soils and Hydrology Soils within the wetland consist of up to 8 inches of very black (10YR 2/1) sandy loam soils with high organic content underlain by at least 8 inches of dark grayish brown (10YR 4/2) sandy loam soils with up to 10% dark yellowish brown (10YR 3/4) 8 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 redoximorphic concentrations in the soil matrix. Other portions of the wetland consisted of up to 16 inches of very dark brown (10YR 2/2) sandy loam with very high organic content and the presence of hydrogen sulfide odor. These soil profiles meet the criteria of the COE wetland delineation manual (Environmental Laboratory 1987) and regional supplement (COE 2010) to be considered hydric. Hydrologic input to the wetland appears to originate from a stream or stormwater runoff on the south side of 312th St. in addition to a shallow groundwater table, surface sheet flow, and direct precipitation. At the time of our May 19, 2021 site investigation, we observed a water table at 7 inches below the surface within the soil profile and saturation to the surface. In addition, a berm at the south and southwestern portion of the wetland has created surface ponding to a depth of approximately 2 to 4 inches. Based on our observations, sufficient indicators of wetland hydrology were present per criteria of the COE wetland delineation manual (Environmental Laboratory 1987) and regional supplement (COE 2010) (Sample Plots 2-1, 2-3). Classification and Determination Positive indicators for each of the three wetland parameters were present within Wetland 2 at the time of our site investigation. Therefore, the delineated area meets the necessary criteria for designation as a wetland according to the guidelines of the COE wetland delineation manual (Environmental Laboratory 1987) and the Regional Supplement (COE 2010). Wetland 2 consists of a palustrine, forested (PFO) with three strata and palustrine, scrub- shrub (PSS) vegetation class according to the USFWS wetland classification system (Cowardin et al. 1992). Wetland Rating We rated Wetland 2 using the 2014 WDOE Wetland Rating System for Western Washington (Hruby 2014), as required by City of Federal Way (2021) code for determination of wetland buffer widths and mitigation ratios (see the attached completed wetland rating form, Appendix B). We determined that Wetland 2 consists of a slope and depressional hydrogeomorphic (HGM) class. Based on our analysis, Wetland 2 meets Category III criteria because it scored a total of 17 points (5 points for habitat function) on the attached rating form. 9 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 4.0 REGULATORY CONSIDERATIONS Wetlands are protected by Section 404 of the Federal Clean Water Act and other state and local policies and ordinances including City of Federal Way (2021) code. Regulatory considerations pertinent to wetlands identified within the study area are discussed below; however, this discussion should not be considered comprehensive. Additional information may be obtained from agencies with jurisdictional responsibility for, or interest in, the site. A brief review of the U.S. Army Corps of Engineers regulations and City of Federal Way policy, relative to wetlands, is presented below. 4.1 FEDERAL CLEAN WATER ACT (U.S. ARMY CORPS OF ENGINEERS) Federal law (Section 404 of the Clean Water Act) discourages the discharge of dredged or fill material into the nation's waters, including most wetlands and streams, without a permit from the U.S. Army Corps of Engineers (COE). The COE makes the final determination as to whether an area meets the definition of “Waters of the U.S.” as defined by the federal government (Federal Register 1986:41251), and thus, if it is under their jurisdiction. We should caution that the placement of fill within wetlands or other “Waters of the U.S.” without authorization from the COE is not advised, as the COE makes the final determination regarding whether any permits would be required for any proposed alteration (COE 2021). Because the COE makes the final determination regarding permitting under their jurisdiction, a jurisdictional determination from the COE is generally recommended prior to any construction activities, if any modification of wetlands is proposed. A jurisdictional determination would also provide evaluation and confirmation of the wetland delineations by the COE. 4.2 WASHINGTON STATE 4.2.1 Federal Clean Water Act Section 401 Certification Under Section 401 of the Clean Water Act, an activity involving a discharge in waters of the U.S. and authorized by the COE must also receive certification that the federally permitted activity complies with the federal Clean Water Act, state water quality laws, and any other appropriate state laws (such as the Water Resources Act and Hydraulic Code). In Washington State, the certifying agency is usually the Washington Department of Ecology (WDOE). In addition, if the COE-authorized permit is for actions within the 15 coastal counties, including King County, then the WDOE must confirm that the proposed action complies with the Washington Coastal Zone Management Program. 4.2.2 Non-Federal Jurisdictional Wetlands The WDOE also regulates activities within isolated wetlands under the state Water Pollution Control Act (90.48 RCW) in instances where a wetland is determined to be 10 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 non-jurisdictional under the federal Clean Water Act by the COE. The standards of review for issuance of a permit by the WDOE for activities within non-COE- jurisdictional wetlands are the same as those for Section 401 certifications. 4.2.3 Washington State Hydraulic Code Prior to construction or other work that will use, divert, obstruct, or change the natural flow or bed of any state waters, approval by the Washington Department of Fish and Wildlife (WDFW), through provisions of the State Hydraulic Code (RCW 75.20.100- 140), is required. The WDFW-administered Hydraulic Project Approval (HPA) is intended to protect fish life from damage by construction and other activities in all marine and fresh waters of the state. A maximum of 45 calendar days is specified in the agency rules for a decision by WDFW to grant or deny approval of a complete application (WDFW 2021). 4.3 CITY OF FEDERAL WAY City of Federal Way (2021) code regulates wetlands and streams as critical areas. Alterations of wetlands and their buffers are generally prohibited, except as allowed under certain conditions. All direct wetland impacts must be mitigated through creation, restoration, or enhancement. The City of Federal Way has the final authority to determine ratings, buffers, and allowed uses of wetlands, their buffers, and other sensitive areas that are under their jurisdiction. City of Federal Way (2021) provides a range of wetland buffers based on the overall classification of the wetland in addition to the habitat score using the WDOE 2014 Wetland Rating System for Western Washington. During our site investigation, we identified two wetlands on the adjacent Steel Lake Park parcel (Wetlands 1 and 2). Based on our analysis of Wetlands 1 and 2 using the WDOE 2014 wetland rating methodology, we determined that both wetlands meet the criteria of Category III wetlands. City of Federal Way (2021) code requires an 80-foot-wide buffer for Category III wetlands with low habitat scores (3 – 5 points). 11 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 5.0 PROPOSED PROJECT During our site visit we identified two wetlands in the Steel Lake Park parcel, offsite and to the east of the project site. Wetlands 1 and 2 are both rated as Category III wetlands and receive 80-foot buffers per City of Federal Way (2021) code. The buffers for both Wetlands 1 and 2 extend onto the eastern portion of the site by approximately 65 feet and 32 feet, respectively (Figure 6). The buffers do not encroach on either structure within the project site. The applicant proposes to expand and alter the existing interior courtyards of both buildings on the site, in addition to expanding the existing bicycle parking area of Building 2, which is south of Building 1 (Appendix C). The proposed expansion of the courtyards of both buildings will not increase the existing footprint of the current structures. The proposed expansion of the bicycle parking area, in the northwest corner of Building 2, includes an additional 220 square feet for a bike shelter and two-tier bike racks on the north side of Building 2 (Appendix C). These expansions appear to impact the buffers of either offsite wetland. The buffer of Wetland 1 extends into the lawn area with scattered trees in the northeastern corner of the site, and the buffer of Wetland 2 extends into the parking lot along the eastern boundary in the southern half of the site. The proposed project would provide a walking trail in the northeast portion of the site and would encroach approximately 92 square feet into the outermost portion of the Wetland 1 buffer (Figure 7). The proposed trail would be comprised of decomposed granite with edging (Pacific Engineering 2021). City of Federal Way (2021) code does allow for trails in the outer portion of wetland buffers provided that the trail meets the following criteria: (2) Trails. The director may provide written approval for passive pedestrian recreation facilities designed in accordance with an approved critical area report and the following standards: (a) Trails are composed of pervious surfaces no more than five feet in width. Raised boardwalks and wildlife viewing structures composed of non-treated pilings may also be considered; (b) Trails are generally located parallel to the perimeter of the wetland and within the outer 25 percent of the buffer; and (c) Trails shall avoid the removal of mature trees. The proposed trail would be constructed of pervious material and would be 5-feet-wide. The trail would also be located in the outermost 25 percent of the buffer and aligned parallel to the wetland. No trees would be removed as part of the trail construction. 12 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 Development of the Meridian Court project would not require any impacts to wetlands and minor intrusion to the buffer of Wetland 1. The intrusion to Wetland 1 buffer is allowed under Section 19.145.440 of the City of Federal Way (2021) code. 13 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 6.0 LIMITATIONS We have prepared this report for the exclusive use of BAU Meister Studio Group and their consultants. No other person or agency may rely upon the information, analysis, or conclusions contained herein without permission from BAU Meister. The determination of ecological system classifications, functions, values, and boundaries is an inexact science, and different individuals and agencies may reach different conclusions. With regard to wetlands, the final determination of their boundaries for regulatory purposes is the responsibility of the various agencies that regulate development activities in wetlands. We cannot guarantee the outcome of such determinations. Therefore, the conclusions of this report should be reviewed by the appropriate regulatory agencies. We warrant that the work performed conforms to standards generally accepted in our field and prepared substantially in accordance with then-current technical guidelines and criteria. The conclusions of this report represent the results of our analysis of the information provided by the project proponent and their consultants, together with information gathered in the course of the study. No other warranty, expressed or implied, is made. 14 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 7.0 LITERATURE CITED Cowardin, L., F. Golet, V. Carter, and E. LaRoe. 1992. Classification of wetlands and deepwater habitats of the United States. U.S.D.I. Fish and Wildlife Service Publ. FWS/OBS-79/31. 103 pp. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1, US Army Engineers Waterways Experiment Station, Vicksburg, Mississippi. 100 pp. Federal Register. 1986. 40 CFR Parts 320 through 330: Regulatory programs of the Corps of Engineers; final rule. Vol. 51. No. 219. pp. 41206-41260, U.S. Government Printing Office, Washington, D.C. Federal Register. 1995. U.S. Department of Agriculture, Soil Conservation Service: Changes in Hydric Soils of the United States. Volume 59, No 133, July 13, 1994. Revised September 15, 1995. Federal Way, City of. 2016. Critical Areas Map. Published May, 2016. Available at: https://www.cityoffederalway.com/InformationTechnology/maps/pdfmaps Federal Way, City of. 2021. Chapter 19.145: Environmentally Critical Areas: Article IV Wetlands. Updated April 20, 2021. Available at: https://www.codepublishing.com/WA/FederalWay/html/FederalWay19/FederalW ay19145.html Google Earth. 2021. Image for 47.3203° -122.3036° in Federal Way, WA. © 2021 Google. Accessed May 2021. Hitchcock, C., and A. Cronquist. 1976. Flora of the Pacific Northwest. Univ. of Washington Press, Seattle, Washington. 730 pp. Hruby, T. 2014. Washington State wetlands rating system for western Washington: 2014 Update. Washington State Department of Ecology, Publication No. 14-06- 029. October 2014. King County. 2021. iMAP GIS Interactive map center, King County, Washington. http://www.metrokc.gov/gis/iMAP_main.htm#. Accessed January 2021. Lichvar, R. W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X. Available at: http://wetland- plants.usace.army.mil/nwpl_static/home/home.html. Munsell Color. 2009. Munsell soil color charts. Munsell Color, Grand Rapids, MI. 15 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 Pacific Engineering Design, LLC. 2021. Personal communications. October 22, 2021. Reed, P.B., Jr. 1988. National list of plant species that occur in wetlands: Northwest (Region 9). U.S.D.I. Fish and Wildlife Service. Biological Report 88 (26.9). 89 pp. U.S. Army Corps of Engineers. 1991a. Special notice. Subject: Use of the 1987 wetland delineation manual. U.S. Army Corps of Engineers, Seattle District. August 30, 1991. U.S. Army Corps of Engineers. 1991b. Memorandum. Subject: Questions and answers on the 1987 manual. U.S. Army Corps of Engineers, Washington D.C. October 7, 1991. 7 pp. including cover letter by John P. Studt, Chief, Regulatory Branch. U.S. Army Corps of Engineers. 1992. Memorandum. Subject: Clarification and interpretation of the 1987 methodology. U.S. Army Corps of Engineers, Washington D.C., March 26, 1992. 4 pp. Arthur E. Williams, Major General, U.S.A. Directorate of Civil Works. U.S. Army Corps of Engineers. 1994. Public Notice. Subject: Washington regional guidance on the 1987 wetland delineation manual. May 23, 1994, Seattle District. 8 pp. 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). Wakeley, J.S., R.W. Lichvar, and C.V. Noble, eds. May 2010. ERDC/EL TR-10-3. U.S. Army Engineer Research and Development Center, Vicksburg, MS. U.S. Army Corps of Engineers. 2021. Special Public Notice. Final Seattle District 2017 Nationwide Permit Regional Conditions for Nationwide Permits for the Seattle District Corps of Engineers for the State of Washington. U.S. Army Corps of Engineers, Seattle District. March 3, 2021. U.S.D.A. Natural Resources Conservation Service. 2021. On-line Web Soil Survey. http://websoilsurvey.nrcs.usda.gov. Accessed January 2021. U.S.D.A., Soil Conservation Service. 1991. Hydric soils of the United States: In cooperation with the National Technical Committee for Hydric Soils. U.S.D.A. Miscellaneous Publication Number 1491. 16 Meridian Court Raedeke Associates, Inc. Wetland Delineation Report October 25, 2021 U.S. Fish and Wildlife Service. 2021. National Wetland Inventory, Wetlands Online Mapper. http://wetlandsfws.er.usgs.gov/wtlnds/launch.html. Accessed May 2021. Washington Department of Fish and Wildlife. 2021. Hydraulic Project Approval. http://wdfw.wa.gov/licensing/hpa/. FIGURES EXISTING CONDITIONS LEGEND:PROPERTY LINEDELINEATED WETLANDSAPPROXIMATE SKETCHBOUNDARY OF THE WETLANDWETLAND SURVEY FLAGSWETLAND BUFFERSAMPLE PLOTSSP #-#80.0BUFFER80.0BUFFER80.0BUFFERWETLAND 1WETLAND 280.0BUFFER80.0BUFFERSP 1-2SP 1-1SP 2-2SP 2-1SP 2-3SP 2-4WWWWT80.0BUFFERPROJECT SITE INFORMATIONADDRESS31420 23rd Ave S, Federal Way, WA98003KING COUNTYPARCEL NO.0921049190TOTAL AREA3.7 ACRE (APPROX.)FIGURERAI PROJECT:DATE:DRAWN BY:PM:BASE INFORMATION:Q:\2021\2021-052 Meridian Court\2021-052 Meridian Court buffer.dwg EXISTING CONDITIONSFAIRFIELD MERIDIAN COURTFEDERAL WAY, WA6WR/ACSS08-23-20212021-052-001Associates, Inc.2111 N. Northgate Way, Ste 219Seattle, WA 98133RaedekeBASE INFORMATION: SITE SURVEY 'PARTIAL TOPOGRAPHY OF FAIRFIELDMERIDIAN COURT FOR PACIFIC ENGINEERING RECEIVED ON 8/9/2021SCALE: 1" = 80'NORTH040'80'160'LEGEND EXISTING CONDITIONS LEGEND:PROPERTY LINEDELINEATED WETLANDSAPPROXIMATE SKETCHBOUNDARY OF THE WETLANDWETLAND SURVEY FLAGSWETLAND BUFFER80.0BUFFER80.0BUFFER80.0BUFFERWETLAND 1WETLAND 280.0 BUF F E R80.0BUFFERXref existing building 1- 2 & 3 plan - 1st floor.dwg WWWWT80.0BUFFERBUFFERENCROACHMENT92 SQ FTPROPOSED CONDITIONS LEGEND:BUFFER ENCROACHMENT92 SQ.FTFIGURERAI PROJECT:DATE:DRAWN BY:PM:BASE INFORMATION:Q:\2021\2021-052 Meridian Court\2021-052 Meridian Court buffer.dwg PROPOSED SITE PLANFAIRFIELD MERIDIAN COURTFEDERAL WAY, WA7CWSS10-22-20212021-052-001Associates, Inc.2111 N. Northgate Way, Ste 219Seattle, WA 98133RaedekeBASE INFORMATION: PROPOSED SITE PLAN RECEIVED FROM PACIFICENGINEERING ON 10-25-2021SCALE: 1" = 50'NORTH025'50'100'LEGEND APPENDIX A Field Survey Data 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: Meridian Court City/County: Federal Way Sampling Date:5/19/21 Applicant/Owner: BAU Meister Studio Group State: WA Sampling Point: SP 1-1 Investigator(s): Will Russack & Annamaria Clark Section, Township, Range: S9.T21.R04 Landform (hillslope, terrace, etc.): depression Local relief (concave, convex, none): concave Slope (%): 1-3 Subregion (LRR): NW Forest Lat: 47.320524 Long: -122.302350 Datum: WGS 84 Soil Map Unit Name: Alderwood Gravelly Sandy Loam NWI classification: none Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No Remarks: sample plot east of northeast corner of project site; GPS 965 VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 5 m) % Cover Species? Status 1. Thuja plicata (western redcedar) 70 Y FAC 2. Alnus rubra (red alder) 20 Y FAC 3. 4. 90 = Total Cover Sapling/Shrub Stratum (Plot size: 3 m) 1. Rubus spectabilis (salmonberry) 15 Y FAC 2. 3. 4. 5. 15 = Total Cover Herb Stratum (Plot size: 3 m) 1. Athyrium filix-femina (lady fern) 20 Y FAC 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 20 = Total Cover Woody Vine Stratum (Plot size: 3 m) 1. 2. = Total Cover % Bare Ground in Herb Stratum 70 Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 4 (A) Total Number of Dominant Species Across All Strata: 4 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 100 (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: 1 - Rapid Test for Hydrophytic Vegetation 2 - Dominance Test is >50% 3 - Prevalence Index is ≤3.01 4 - Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 5 - Wetland Non-Vascular Plants1 Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes No Remarks: US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: SP 1-1 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) % Type1 Loc2 Texture Remarks 0-10 10YR 2/1 S.L 10-16 2.5Y 5/2 10YR 5/6 20 C M S.L 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) Very Shallow Dark Surface (TF12) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks) Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (A12) Redox Dark Surface (F6) 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): 14 Saturation Present? Yes No Depth (inches): 12 (includes capillary fringe) Wetland Hydrology Present? Yes No Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region Project/Site: Meridian Court City/County: Federal Way Sampling Date:5/19/21 Applicant/Owner: BAU Meister Studio Group State: WA Sampling Point: SP 1-2 Investigator(s): Will Russack & Annamaria Clark Section, Township, Range: S9.T21.R04 Landform (hillslope, terrace, etc.): slope Local relief (concave, convex, none): convex Slope (%): 1-3 Subregion (LRR): NW Forest Lat: 47.320524 Long: -122.302350 Datum: WGS 84 Soil Map Unit Name: Alderwood Gravelly Sandy Loam NWI classification: none Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No Remarks: sample plot west and upland of wetland 1 VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 5 m) % Cover Species? Status 1. Acer macrophyllum (bigleaf maple) 80 Y FACU 2. Alnus rubra (red alder) 5 N FAC 3. 4. 85 = Total Cover Sapling/Shrub Stratum (Plot size: 3 m) 1. Rubus spectabilis (salmonberry) 30 Y FAC 2. Rubus ursinus (trailing blackberry) 15 Y FACU 3. Aesculus hippocastanum (horse chestnut) 10 N N.L 4. Prunus emarginata (bittery cherry) 5 N FACU 5. Rubus armeniacus (Himalayan blackberry) 5 N FAC 65 = Total Cover Herb Stratum (Plot size: 1 m) 1. Circaea alpina (enchanter's nightshade 15 Y FAC 2. Polystichum munitum (sword fern) 5 Y FACU 3. 4. 5. 6. 7. 8. 9. 10. 11. 20 = Total Cover Woody Vine Stratum (Plot size: 3 m) 1. 2. = Total Cover % Bare Ground in Herb Stratum Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 2 (A) Total Number of Dominant Species Across All Strata: 5 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 40 (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: 1 - Rapid Test for Hydrophytic Vegetation 2 - Dominance Test is >50% 3 - Prevalence Index is ≤3.01 4 - Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 5 - Wetland Non-Vascular Plants1 Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes No Remarks: US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: SP 1-2 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) % Type1 Loc2 Texture Remarks 0-2 10YR 2/2 S.L 2-12+ 10YR 3/2 Gr.S.L cobbles 1-3" 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) Very Shallow Dark Surface (TF12) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks) Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (A12) Redox Dark Surface (F6) 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: no indicators of hydric soils 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: no indicators of hydrology 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: Meridian Court City/County: Federal Way Sampling Date:5/19/21 Applicant/Owner: BAU Meister Studio Group State: WA Sampling Point: SP 2-1 Investigator(s): Will Russack & Annamaria Clark Section, Township, Range: S9.T21.R04 Landform (hillslope, terrace, etc.): depression Local relief (concave, convex, none): concave Slope (%): 0-2 Subregion (LRR): NW Forest Lat: 47.320524 Long: -122.302350 Datum: WGS 84 Soil Map Unit Name: Alderwood Gravelly Sandy Loam NWI classification: none Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No Remarks: sample plot in wetland 2 VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 5 m) % Cover Species? Status 1. Alnus rubra (red alder) 30 Y FAC 2. 3. 4. 30 = Total Cover Sapling/Shrub Stratum (Plot size: 3 m) 1. Rubus spectabilis (salmonberry) 50 Y FAC 2. Cornus alba (red osier dogwood) 10 N FACW 3. Salix sitchensis (Sitka willow) 1 N FACW 4. Spiraea douglasii (spiraea) 1 N FACW 5. 62 = Total Cover Herb Stratum (Plot size: 1 m) 1. Ranunculus repens (creeping buttercup) 50 Y FAC 2. Maianthemum dilatatum (false Solomon's-seal) 10 N FAC 3. Lysichiton americanus (skunk cabbage) 1 N OBL 4. Athyrium filix-femina (lady fern) 1 N FAC 5. 6. 7. 8. 9. 10. 11. 62 = Total Cover Woody Vine Stratum (Plot size: 3 m) 1. 2. = Total Cover % Bare Ground in Herb Stratum Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 3 (A) Total Number of Dominant Species Across All Strata: 3 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 100 (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: 1 - Rapid Test for Hydrophytic Vegetation 2 - Dominance Test is >50% 3 - Prevalence Index is ≤3.01 4 - Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 5 - Wetland Non-Vascular Plants1 Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes No Remarks: US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: SP 2-1 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) % Type1 Loc2 Texture Remarks 0-8 10YR 2/1 S.L organics prevelant 8-16 10YR 4/2 10YR 3/4 10 C M Gr.S.L 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) Very Shallow Dark Surface (TF12) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks) Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (A12) Redox Dark Surface (F6) 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): 7 Saturation Present? Yes No Depth (inches): 0 (includes capillary fringe) Wetland Hydrology Present? Yes No Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region Project/Site: Meridian Court City/County: Federal Way Sampling Date:5/19/21 Applicant/Owner: BAU Meister Studio Group State: WA Sampling Point: SP 2-2 Investigator(s): Will Russack & Annamaria Clark Section, Township, Range: S9.T21.R04 Landform (hillslope, terrace, etc.): slope Local relief (concave, convex, none): convex Slope (%): 0-2 Subregion (LRR): NW Forest Lat: 47.320524 Long: -122.302350 Datum: WGS 84 Soil Map Unit Name: Alderwood Gravelly Sandy Loam NWI classification: none Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No Remarks: sample plot west of northern portion of wetland 2; GPS 959 VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 5 m) % Cover Species? Status 1. 2. 3. 4. = Total Cover Sapling/Shrub Stratum (Plot size: 3 m) 1. Rubus spectabilis (salmonberry) 30 Y FAC 2. Sambucus racemosa (red elderberry) 15 Y FACU 3. Rubus ursinus (trailing blackberry) 15 Y FACU 4. 5. 60 = Total Cover Herb Stratum (Plot size: 1 m) 1. Maianthemum dilatatum (false Solomon's-seal) 5 Y FAC 2. Epilobium watsonii (willowherb) 5 Y FACW 3. Geranium robertianum (herbrobert) 2 N FACU 4. Musci spp. (moss) 20 N.L 5. 6. 7. 8. 9. 10. 11. 12 = Total Cover Woody Vine Stratum (Plot size: 3 m) 1. 2. = Total Cover % Bare Ground in Herb Stratum 20 Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 3 (A) Total Number of Dominant Species Across All Strata: 5 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 60 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species 0 x 1 = 0 FACW species 5 x 2 = 10 FAC species 35 x 3 = 105 FACU species 32 x 4 = 128 UPL species 0 x 5 = 0 Column Totals: 72 (A) 243 (B) Prevalence Index = B/A = 3.3 Hydrophytic Vegetation Indicators: 1 - Rapid Test for Hydrophytic Vegetation 2 - Dominance Test is >50% 3 - Prevalence Index is ≤3.01 4 - Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 5 - Wetland Non-Vascular Plants1 Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes No Remarks: US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: SP 2-2 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) % Type1 Loc2 Texture Remarks 0-4 10YR 2/1 S.L 4-14 10YR 2/2 S.L 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) Very Shallow Dark Surface (TF12) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks) Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (A12) Redox Dark Surface (F6) 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: no indicators of hydric soils 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: no indicators of hydrology 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: Meridian Court City/County: Federal Way Sampling Date:5/19/21 Applicant/Owner: BAU Meister Studio Group State: WA Sampling Point: SP 2-3 Investigator(s): Will Russack & Annamaria Clark Section, Township, Range: S9.T21.R04 Landform (hillslope, terrace, etc.): slope Local relief (concave, convex, none): concave Slope (%): 0-2 Subregion (LRR): NW Forest Lat: 47.320524 Long: -122.302350 Datum: WGS 84 Soil Map Unit Name: Alderwood Gravelly Sandy Loam NWI classification: none Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No Remarks: Sample plot in southwest portion of wetland 2 VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 5 m) % Cover Species? Status 1. Populus balsamifera (black cottonwood) 85 Y FAC 2. 3. 4. 85 = Total Cover Sapling/Shrub Stratum (Plot size: 3 m) 1. Spiraea douglasii (spiraea) 20 Y FACW 2. Salix sitchensis (sitka willow) 5 N FACW 3. Rubus armeniacus (Himalayan blackberry) 1 N FAC 4. Rubus spectabilis (salmonberry) 1 N FAC 5. 27 = Total Cover Herb Stratum (Plot size: 1 m) 1. Carex obnupta (slough sedge) 75 Y OBL 2. Phalaris arundinacea (reed canary grass) 10 N FACW 3. 4. 5. 6. 7. 8. 9. 10. 11. 85 = Total Cover Woody Vine Stratum (Plot size: 3 m) 1. 2. = Total Cover % Bare Ground in Herb Stratum 20 Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 3 (A) Total Number of Dominant Species Across All Strata: 3 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 100 (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: 1 - Rapid Test for Hydrophytic Vegetation 2 - Dominance Test is >50% 3 - Prevalence Index is ≤3.01 4 - Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 5 - Wetland Non-Vascular Plants1 Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes No Remarks: US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: SP 2-3 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) % Type1 Loc2 Texture Remarks 0-18 10YR 2/2 S.L high organic content 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) Very Shallow Dark Surface (TF12) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks) Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (A12) Redox Dark Surface (F6) 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): 1 Water Table Present? Yes No Depth (inches): Saturation Present? Yes No Depth (inches): 0 (includes capillary fringe) Wetland Hydrology Present? Yes No Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region Project/Site: Meridian Court City/County: Federal Way Sampling Date:5/19/21 Applicant/Owner: BAU Meister Studio Group State: WA Sampling Point: SP 2-4 Investigator(s): Will Russack & Annamaria Clark Section, Township, Range: S9.T21.R04 Landform (hillslope, terrace, etc.): slope Local relief (concave, convex, none): concave Slope (%): 1-3 Subregion (LRR): NW Forest Lat: 47.320524 Long: -122.302350 Datum: WGS 84 Soil Map Unit Name: Alderwood Gravelly Sandy Loam NWI classification: none Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No Remarks: sample plot north of southwestern portion of wetland 2 (GPS 991) VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 5 m) % Cover Species? Status 1. Thuja plicata (western redcedar) 90 Y FAC 2. 3. 4. 90 = Total Cover Sapling/Shrub Stratum (Plot size: 3 m) 1. Rubus spectabilis (salmonberry) 10 Y FAC 2. Rubus armeniacus (Himalayan blackberry) 5 Y FAC 3. 4. 5. 15 = Total Cover Herb Stratum (Plot size: 1 m) 1. Polystichum munitum (sword fern) 15 Y FACU 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 15 = Total Cover Woody Vine Stratum (Plot size: 3 m) 1. 2. = Total Cover % Bare Ground in Herb Stratum 60 Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 3 (A) Total Number of Dominant Species Across All Strata: 4 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 75 (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: 1 - Rapid Test for Hydrophytic Vegetation 2 - Dominance Test is >50% 3 - Prevalence Index is ≤3.01 4 - Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 5 - Wetland Non-Vascular Plants1 Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes No Remarks: US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0 SOIL Sampling Point: SP 2-4 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) % Type1 Loc2 Texture Remarks 0-12+ 10YR 2/1 Gr.S.L 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) Very Shallow Dark Surface (TF12) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks) Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (A12) Redox Dark Surface (F6) 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: no indicators of hydric soils 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: moist to surface, no indicators of hydrology within 12" APPENDIX B Washington Department of Ecology (2014) Wetland Rating Form Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 1 Rating Form Effective January 1, 2015 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 RATING SUMMARY Western Washington Name of wetland (or ID #): _________________________________ Date of site visit: _____ Rated by____________________________ Trained by Ecology?__ Yes ___No Date of training______ HGM Class used for rating_________________ 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 ____ (based on functions___ or special characteristics___) 1. Category of wetland based on FUNCTIONS _______Category I Total score = 23 - 27 _______Category II Total score = 20 - 22 _______Category III Total score = 16 - 19 _______Category IV Total score = 9 - 15 FUNCTION Improving Water Quality Hydrologic Habitat Circle the appropriate ratings Site Potential H M L H M L H M L Landscape Potential H M L H M L H M L Value H M L H M L H M L TOTAL Score Based on Ratings 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 H M L H M L H M L H M L H M L M L H M L H M L H M L Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 2 Rating Form Effective January 1, 2015 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 name or number ______ Wetland Rating System for Western WA: 2014 Update 3 Rating Form Effective January 1, 2015 HGM Classification of Wetlands in Western Washington 1.Are the water levels in the entire unit usually controlled by tides except during floods? NO go to 2 YES the wetland class is Tidal Fringe go to 1.1 1.1 Is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? NO Saltwater Tidal Fringe (Estuarine) YES Freshwater Tidal Fringe If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. 2.The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. NO go to 3 YES The wetland class is Flats If your wetland can be classified as a Flats wetland, use the form for Depressional wetlands. 3.Does the entire wetland unit meet all of the following criteria? ___The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; ___At least 30% of the open water area is deeper than 6.6 ft (2 m). NO go to 4 YES The wetland class is Lake Fringe (Lacustrine Fringe) 4.Does the entire wetland unit meet all of the following criteria? ____The wetland is on a slope (slope can be very gradual ), ____The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may flow subsurface, as sheetflow, or in a swale without distinct banks, ____The water leaves the wetland without being impounded. NO go to 5 YES The wetland class is Slope NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 ft deep). 5.Does the entire wetland unit meet all of the following criteria? ____The unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river, ____The overbank flooding occurs at least once every 2 years. For questions 1-7, the criteria described must apply to the entire unit being rated . If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8. Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 4 Rating Form Effective January 1, 2015 NO go to 6 YES The wetland class is Riverine NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during the year? This means that any outlet, if present, is higher than the interior of the wetland. NO go to 7 YES The wetland class is Depressional 7.Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding? The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched, but has no obvious natural outlet. NO go to 8 YES The wetland class is Depressional 8.Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a Depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within the wetland unit being scored. NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the HGM class listed in column 2 is less than 10% of the unit; classify the wetland using the class that represents more than 90% of the total area. HGM classes within the wetland unit being rated HGM class to use in rating Slope + Riverine Riverine Slope + Depressional Depressional Slope + Lake Fringe Lake Fringe Depressional + Riverine along stream within boundary of depression Depressional Depressional + Lake Fringe Depressional Riverine + Lake Fringe Riverine Salt Water Tidal Fringe and any other class of freshwater wetland Treat as ESTUARINE If you are still unable to determine which of the above criteria apply to your wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 5 Rating Form Effective January 1, 2015 DEPRESSIONAL AND FLATS WETLANDS Water Quality Functions - Indicators that the site functions to improve water quality D 1.0. Does the site have the potential to improve water quality? D 1.1. Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression (QUESTION 7 on key) with no surface water leaving it (no outlet). points = 3 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet. points = 2 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing points = 1 Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch. points = 1 D 1.2. The soil 2 in below the surface (or duff layer) is true clay or true organic (use NRCS definitions).Yes = 4 No = 0 D 1.3. Characteristics and distribution of persistent plants (Emergent, Scrub-shrub, and/or Forested Cowardin classes): Wetland has persistent, ungrazed, plants > 95% of area points = 5 Wetland has persistent, ungrazed, plants > ½ of area points = 3 Wetland has persistent, ungrazed plants > 1/10 of area points = 1 Wetland has persistent, ungrazed plants <1/10 of area points = 0 D 1.4. Characteristics of seasonal ponding or inundation : This is the area that is ponded for at least 2 months. See description in manual. Area seasonally ponded is > ½ total area of wetland points = 4 Area seasonally ponded is > ¼ total area of wetland points = 2 Area seasonally ponded is < ¼ total area of wetland points = 0 Total for D 1 Add the points in the boxes above Rating of Site Potential If score is: 12-16 = H 6-11 = M 0-5 = L Record the rating on the first page D 2.0. Does the landscape have the potential to support the water quality function of the site? D 2.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 D 2.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate pollutants? Yes = 1 No = 0 D 2.3. Are there septic systems within 250 ft of the wetland? Yes = 1 No = 0 D 2.4. Are there other sources of pollutants coming into the wetland that are not listed in questions D 2.1-D 2.3? Source_______________ Yes = 1 No = 0 Total for D 2 Add the points in the boxes above Rating of Landscape Potential If score is: 3 or 4 = H 1 or 2 = M 0 = L Record the rating on the first page D 3.0. Is the water quality improvement provided by the site valuable to society? D 3.1. Does the wetland discharge directly (i.e., within 1 mi) to a stream, river, lake, or marine water that is on the 303(d) list? Yes = 1 No = 0 D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d) list? Yes = 1 No = 0 D 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 basin in which the unit is found)? Yes = 2 No = 0 Total for D 3 Add the points in the boxes above Rating of Value If score is: 2-4 = H 1 = M 0 = L Record the rating on the first page Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 6 Rating Form Effective January 1, 2015 DEPRESSIONAL AND FLATS WETLANDS Hydrologic Functions - Indicators that the site functions to reduce flooding and stream degradation D 4.0. Does the site have the potential to reduce flooding and erosion? D 4.1. Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression with no surface water leaving it (no outlet) points = 4 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outletpoints = 2 Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch points = 1 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing points = 0 D 4.2. Depth of storage during wet periods: Estimate the height of ponding above the bottom of the outlet. For wetlands with no outlet, measure from the surface of permanent water or if dry, the deepest part. Marks of ponding are 3 ft or more above the surface or bottom of outlet points = 7 Marks of ponding between 2 ft to < 3 ft from surface or bottom of outlet points = 5 Marks are at least 0.5 ft to < 2 ft from surface or bottom of outlet points = 3 points = 3 Wetland is flat but has small depressions on the surface that trap water points = 1 Marks of ponding less than 0.5 ft (6 in) points = 0 D 4.3. Contribution of the wetland to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself. The area of the basin is less than 10 times the area of the unit points = 5 The area of the basin is 10 to 100 times the area of the unit points = 3 The area of the basin is more than 100 times the area of the unit points = 0 Entire wetland is in the Flats class points = 5 Total for D 4 Add the points in the boxes above Rating of Site Potential If score is: 12-16 = H 6-11 = M 0-5 = L Record the rating on the first page D 5.0. Does the landscape have the potential to support hydrologic functions of the site? D 5.1. Does the wetland receive stormwater discharges? Yes = 1 No = 0 D 5.2. Is >10% of the area within 150 ft of the wetland in land uses that generate excess runoff? Yes = 1 No = 0 D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human land uses (residential at >1 residence/ac, urban, commercial, agriculture, etc.)? Yes = 1 No = 0 Total for D 5 Add the points in the boxes above Rating of Landscape Potential If score is: 3 = H 1 or 2 = M 0 = L Record the rating on the first page D 6.0. Are the hydrologic functions provided by the site valuable to society? D 6.1. The unit is in a landscape that has flooding problems. Choose the description that best matches conditions around the wetland unit being rated. Do not add points. Choose the highest score if more than one condition is met . The wetland captures surface water that would otherwise flow down-gradient into areas where flooding has damaged human or natural resources (e.g., houses or salmon redds): Flooding occurs in a sub-basin that is immediately down-gradient of unit. points = 2 Surface flooding problems are in a sub-basin farther down-gradient. points = 1 Flooding from groundwater is an issue in the sub-basin. points = 1 The existing or potential outflow from the wetland is so constrained by human or natural conditions that the water stored by the wetland cannot reach areas that flood. Explain why _____________ points = 0 There are no problems with flooding downstream of the wetland. points = 0 D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Yes = 2 No = 0 Total for D 6 Add the points in the boxes above Rating of Value If score is: 2-4 = H 1 = M 0 = L Record the rating on the first page points = 3 Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 13 Rating Form Effective January 1, 2015 These questions apply to wetlands of all HGM classes. HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold of ¼ ac or more than 10% of the unit if it is smaller than 2.5 ac . Add the number of structures checked. ____Aquatic bed 4 structures or more: points = 4 ____Emergent 3 structures: points = 2 ____Scrub-shrub (areas where shrubs have > 30% cover) 2 structures: points = 1 ____Forested (areas where trees have > 30% cover) 1 structure: points = 0 If the unit has a Forested class, check if: ____The Forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon H 1.2. Hydroperiods Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or ¼ ac to count (see text for descriptions of hydroperiods ). ____Permanently flooded or inundated 4 or more types present: points = 3 ____Seasonally flooded or inundated 3 types present: points = 2 ____Occasionally flooded or inundated 2 types present: points = 1 ____Saturated only 1 type present: points = 0 ____Permanently flowing stream or river in, or adjacent to, the wetland ____Seasonally flowing stream in, or adjacent to, the wetland ____Lake Fringe wetland 2 points ____Freshwater tidal wetland 2 points H 1.3. Richness of plant species Count the number of plant species in the wetland that cover at least 10 ft 2. Different patches of the same species can be combined to meet the size threshold and you do not have to name the species. Do not include Eurasian milfoil, reed canarygrass, purple loosestrife, Canadian thistle If you counted: > 19 species points = 2 5 - 19 species points = 1 < 5 species points = 0 H 1.4. Interspersion of habitats Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, low, or none. If you have four or more plant classes or three classes and open water, the rating is always high. None = 0 points Low = 1 point Moderate = 2 points All three diagrams in this row are HIGH = 3points Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 14 Rating Form Effective January 1, 2015 H 1.5. Special habitat features: Check the habitat features that are present in the wetland. The number of checks is the number of points. ____Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long). ____Standing snags (dbh > 4 in) within the wetland ____Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m) ____Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet weathered where wood is exposed) ____At least ¼ ac of thin-stemmed persistent plants or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) ____Invasive plants cover less than 25% of the wetland area in every stratum of plants (see H 1.1 for list of strata) Total for H 1 Add the points in the boxes above Rating of Site Potential If score is: 15-18 = H 7-14 = M 0-6 = L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat functions of the site? H 2.1. Accessible habitat (include only habitat that directly abuts wetland unit). Calculate: % undisturbed habitat + [(% moderate and low intensity land uses)/2] = _______% If total accessible habitat is: > 1/3 (33.3%) of 1 km Polygon points = 3 20-33% of 1 km Polygon points = 2 10-19% of 1 km Polygon points = 1 < 10% of 1 km Polygon points = 0 H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: % undisturbed habitat + [(% moderate and low intensity land uses)/2] = _______% Undisturbed habitat > 50% of Polygon points = 3 Undisturbed habitat 10-50% and in 1-3 patches points = 2 Undisturbed habitat 10-50% and > 3 patches points = 1 Undisturbed habitat < 10% of 1 km Polygon points = 0 H 2.3. Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points = (- 2) 50% of 1 km Polygon is high intensity points = 0 Total for H 2 Add the points in the boxes above Rating of Landscape Potential If score is: 4-6 = H 1-3 = M < 1 = L Record the rating on the first page H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score that applies to the wetland being rated. Site meets ANY of the following criteria: points = 2 It has 3 or more priority habitats within 100 m (see next page) It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) It is mapped as a location for an individual WDFW priority species It is a Wetland of High Conservation Value as determined by the Department of Natural Resources It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan Site has 1 or 2 priority habitats (listed on next page) within 100 m points = 1 Site does not meet any of the criteria above points = 0 Rating of Value If score is: 2 = H 1 = M 0 = L Record the rating on the first page Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 15 Rating Form Effective January 1, 2015 WDFW Priority Habitats Priority habitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympia, Washington. 177 pp. http://wdfw.wa.gov/publications/00165/wdfw00165.pdf or access the list from here: http://wdfw.wa.gov/conservation/phs/list/) Count how many of the following priority habitats are within 330 ft (100 m) of the wetland unit: NOTE: This question is independent of the land use between the wetland unit and the priority habitat. Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha). Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (full descriptions in WDFW PHS report). Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. Old-growth/Mature forests: Old-growth west of Cascade crest Stands of at least 2 tree species, forming a multi- layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha ) > 32 in (81 cm) dbh or > 200 years of age. Mature forests Stands with average diameters exceeding 21 in (53 cm) dbh; crown cover may be less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth; 80-200 years old west of the Cascade crest. Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 see web link above). Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. Westside Prairies: Herbaceous, non-forested plant communities that can either take the form of a dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161 see web link above ). Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. (full descriptions of habitats and the definition of relatively undisturbed are in WDFW report see web link on previous page). Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth in soils, rock, ice, or other geological formations and is large enough to contain a human. Cliffs: Greater than 25 ft (7.6 m) high and occurring below 5000 ft elevation. Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0.15 - 2.0 m), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast height of > 20 in (51 cm) in western Washington and are > 6.5 ft (2 m) in height. Priority logs are > 12 in (30 cm) in diameter at the largest end, and > 20 ft (6 m) long. Note: All vegetated wetlands are by definition a priority habitat but are not included in this list because they are addressed elsewhere. Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 16 Rating Form Effective January 1, 2015 CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Wetland Type Check off any criteria that apply to the wetland. Circle the category when the appropriate criteria are met. Category SC 1.0. Estuarine wetlands Does the wetland meet the following criteria for Estuarine wetlands? The dominant water regime is tidal, Vegetated, and With a salinity greater than 0.5 ppt Yes Go to SC 1.1 No= Not an estuarine wetland SC 1.1. Is the wetland within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC 332-30-151? Yes = Category I No - Go to SC 1.2 Cat. I SC 1.2. Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. (If non-native species are Spartina, see page 25) At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un- mowed grassland. The wetland has at least two of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. Yes = Category I No = Category II Cat. I Cat. II SC 2.0. Wetlands of High Conservation Value (WHCV) SC 2.1. Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High Conservation Value? Yes Go to SC 2.2 No Go to SC 2.3 SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? Yes = Category I No = Not a WHCV SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://www1.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 Cat. I SC 3.0. Bogs Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below. If you answer YES you will still need to rate the wetland based on its functions. SC 3.1. Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or more of the first 32 in of the soil profile? Yes Go to SC 3.3 No Go to SC 3.2 SC 3.2. Does an area within the wetland unit have organic soils, either peats or mucks, that are less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on top of a lake or pond? Yes Go to SC 3.3 No = Is not a bog SC 3.3. Does an area with peats or mucks have more than 70% cover of mosses at ground level, AND at least a 30% cover of plant species listed in Table 4? Yes = Is a Category I bog No Go to SC 3.4 NOTE: If you are uncertain about the extent of mosses in the understory, you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present, the wetland is a bog. SC 3.4. Is an area with peats or mucks forested (> 30% cover) with Sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Engelmann spruce, or western white pine, AND any of the species (or combination of species) listed in Table 4 provide more than 30% of the cover under the canopy? Yes = Is a Category I bog No = Is not a bog Cat. I Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 17 Rating Form Effective January 1, 2015 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 If you answer YES you will still need to rate the wetland based on its functions. Old-growth forests (west of Cascade crest): Stands of at least two tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 in (81 cm) or more. Mature forests (west of the Cascade Crest): Stands where the largest trees are 80- 200 years old OR the species that make up the canopy have an average diameter (dbh) exceeding 21 in (53 cm). Yes = Category I No = Not a forested wetland for this section Cat. I SC 5.0. Wetlands in Coastal Lagoons Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks The lagoon in which the wetland is located contains ponded water that is saline or brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the bottom) Yes Go to SC 5.1 No = Not a wetland in a coastal lagoon SC 5.1. Does the wetland meet all of the following three conditions? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less than 20% cover of aggressive, opportunistic plant species (see list of species on p. 100). At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un- mowed grassland. The wetland is larger than 1/10 ac (4350 ft2) Yes = Category I No = Category II Cat. I Cat. II SC 6.0. Interdunal Wetlands Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? If you answer yes you will still need to rate the wetland based on its habitat functions. In practical terms that means the following geographic areas: Long Beach Peninsula: Lands west of SR 103 Grayland-Westport: Lands west of SR 105 Ocean Shores-Copalis: Lands west of SR 115 and SR 109 Yes Go to SC 6.1 No = not an interdunal wetland for rating SC 6.1. Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form (rates H,H,H or H,H,M for the three aspects of function)? Yes = Category I No Go to SC 6.2 SC 6.2. Is the wetland 1 ac or larger, or is it in a mosaic of wetlands that is 1 ac or larger? Yes = Category II No Go to SC 6.3 SC 6.3. Is the unit between 0.1 and 1 ac, or is it in a mosaic of wetlands that is between 0.1 and 1 ac? Yes = Category III No = Category IV Cat I Cat. II Cat. III Cat. IV Category of wetland based on Special Characteristics If you answered No for all types, Summary Form Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 18 Rating Form Effective January 1, 2015 This page left blank intentionally Pictometry, King County I Wetland 1 - Figure 1Meridian Court RAI Project #: 2021-052-001 Note: Wetland Boundaries are based on handheld GPS coordinates and have not been surveyed. Boundaries are approximate and for planning purposes only. 150ft Polygon Wetland 1 00 6060 1201203030 FeetFeet PFO Seasonally Flooded & Saturated Only No Outlet Pictometry, King C ounty I Wetland 1 - Figure 2Meridian Court RAI Project #: 2021-052-001 Note : Wetland Boundaries are based on handheld GPS coordinates and have not been surveyed. Boundaries are approximate and for plann ing purposes only. Contributing Basin Wetland 1 00 6060 1201203030 FeetFeet Pictometry, King County I Wetland 1 - Figure 3Meridian Court RAI Project #: 2021-052-001 Note: Wetland Boundaries are based on handheld GPS coordinates and have not been surveyed. Boundaries are approximate and for planning purposes only. Low Moderate Habitat Accessible Habitat Undisturbed Habitat 1KM Polygon Approximate Wetland Boundaries 00 0.20.2 0.40.40.10.1 MilesMiles Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CN ES/Airbus DS, U SDA, USGS, AeroGRID, IGN, and the GIS User Community, King County I Wetland 1 - Figure 4Meridian Court RAI Project #: 2021-052-001 Note : Wetland Boundaries are based on handheld GPS coordinates and have not been surveyed. Boundaries are approximate and for plann ing purposes only. Approximate Wetland Location Hylebos C reek Basin 303(d) Waters Streams 00 11 220.50.5 MilesMiles Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CN ES/Airbus DS, U SDA, USGS, AeroGRID, IGN, and the GIS User Community I Wetland 1 - Figure 5Meridian Court RAI Project #: 2021-052-001 Note : Wetland Boundaries are based on handheld GPS coordinates and have not been surveyed. Boundaries are approximate and for plann ing purposes only. Approximate Wetlan d Lo cation WR IA 1 0 TMDL Projects Approved In Dev elopm ent 00 22 4411 MilesMiles Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 1 Rating Form Effective January 1, 2015 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 RATING SUMMARY Western Washington Name of wetland (or ID #): _________________________________ Date of site visit: _____ Rated by____________________________ Trained by Ecology?__ Yes ___No Date of training______ HGM Class used for rating_________________ 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 ____ (based on functions___ or special characteristics___) 1. Category of wetland based on FUNCTIONS _______Category I Total score = 23 - 27 _______Category II Total score = 20 - 22 _______Category III Total score = 16 - 19 _______Category IV Total score = 9 - 15 FUNCTION Improving Water Quality Hydrologic Habitat Circle the appropriate ratings Site Potential H M L H M L H M L Landscape Potential H M L H M L H M L Value H M L H M L H M L TOTAL Score Based on Ratings 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 H M L H M L H M L H M L H M L H M L M L H M L H M L Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 2 Rating Form Effective January 1, 2015 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 name or number ______ Wetland Rating System for Western WA: 2014 Update 3 Rating Form Effective January 1, 2015 HGM Classification of Wetlands in Western Washington 1.Are the water levels in the entire unit usually controlled by tides except during floods? NO go to 2 YES the wetland class is Tidal Fringe go to 1.1 1.1 Is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? NO Saltwater Tidal Fringe (Estuarine) YES Freshwater Tidal Fringe If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. 2.The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. NO go to 3 YES The wetland class is Flats If your wetland can be classified as a Flats wetland, use the form for Depressional wetlands. 3.Does the entire wetland unit meet all of the following criteria? ___The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; ___At least 30% of the open water area is deeper than 6.6 ft (2 m). NO go to 4 YES The wetland class is Lake Fringe (Lacustrine Fringe) 4.Does the entire wetland unit meet all of the following criteria? ____The wetland is on a slope (slope can be very gradual ), ____The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may flow subsurface, as sheetflow, or in a swale without distinct banks, ____The water leaves the wetland without being impounded. NO go to 5 YES The wetland class is Slope NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 ft deep). 5.Does the entire wetland unit meet all of the following criteria? ____The unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river, ____The overbank flooding occurs at least once every 2 years. For questions 1-7, the criteria described must apply to the entire unit being rated . If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8. Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 4 Rating Form Effective January 1, 2015 NO go to 6 YES The wetland class is Riverine NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during the year? This means that any outlet, if present, is higher than the interior of the wetland. NO go to 7 YES The wetland class is Depressional 7.Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding? The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched, but has no obvious natural outlet. NO go to 8 YES The wetland class is Depressional 8.Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a Depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within the wetland unit being scored. NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the HGM class listed in column 2 is less than 10% of the unit; classify the wetland using the class that represents more than 90% of the total area. HGM classes within the wetland unit being rated HGM class to use in rating Slope + Riverine Riverine Slope + Depressional Depressional Slope + Lake Fringe Lake Fringe Depressional + Riverine along stream within boundary of depression Depressional Depressional + Lake Fringe Depressional Riverine + Lake Fringe Riverine Salt Water Tidal Fringe and any other class of freshwater wetland Treat as ESTUARINE If you are still unable to determine which of the above criteria apply to your wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 5 Rating Form Effective January 1, 2015 DEPRESSIONAL AND FLATS WETLANDS Water Quality Functions - Indicators that the site functions to improve water quality D 1.0. Does the site have the potential to improve water quality? D 1.1. Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression (QUESTION 7 on key) with no surface water leaving it (no outlet). points = 3 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet. points = 2 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing points = 1 Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch. points = 1 D 1.2. The soil 2 in below the surface (or duff layer) is true clay or true organic (use NRCS definitions).Yes = 4 No = 0 D 1.3. Characteristics and distribution of persistent plants (Emergent, Scrub-shrub, and/or Forested Cowardin classes): Wetland has persistent, ungrazed, plants > 95% of area points = 5 Wetland has persistent, ungrazed, plants > ½ of area points = 3 Wetland has persistent, ungrazed plants > 1/10 of area points = 1 Wetland has persistent, ungrazed plants <1/10 of area points = 0 D 1.4. Characteristics of seasonal ponding or inundation : This is the area that is ponded for at least 2 months. See description in manual. Area seasonally ponded is > ½ total area of wetland points = 4 Area seasonally ponded is > ¼ total area of wetland points = 2 Area seasonally ponded is < ¼ total area of wetland points = 0 Total for D 1 Add the points in the boxes above Rating of Site Potential If score is: 12-16 = H 6-11 = M 0-5 = L Record the rating on the first page D 2.0. Does the landscape have the potential to support the water quality function of the site? D 2.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 D 2.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate pollutants? Yes = 1 No = 0 D 2.3. Are there septic systems within 250 ft of the wetland? Yes = 1 No = 0 D 2.4. Are there other sources of pollutants coming into the wetland that are not listed in questions D 2.1-D 2.3? Source_______________ Yes = 1 No = 0 Total for D 2 Add the points in the boxes above Rating of Landscape Potential If score is: 3 or 4 = H 1 or 2 = M 0 = L Record the rating on the first page D 3.0. Is the water quality improvement provided by the site valuable to society? D 3.1. Does the wetland discharge directly (i.e., within 1 mi) to a stream, river, lake, or marine water that is on the 303(d) list? Yes = 1 No = 0 D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d) list? Yes = 1 No = 0 D 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 basin in which the unit is found)? Yes = 2 No = 0 Total for D 3 Add the points in the boxes above Rating of Value If score is: 2-4 = H 1 = M 0 = L Record the rating on the first page Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 6 Rating Form Effective January 1, 2015 DEPRESSIONAL AND FLATS WETLANDS Hydrologic Functions - Indicators that the site functions to reduce flooding and stream degradation D 4.0. Does the site have the potential to reduce flooding and erosion? D 4.1. Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression with no surface water leaving it (no outlet) points = 4 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outletpoints = 2 Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch points = 1 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing points = 0 D 4.2. Depth of storage during wet periods: Estimate the height of ponding above the bottom of the outlet. For wetlands with no outlet, measure from the surface of permanent water or if dry, the deepest part. Marks of ponding are 3 ft or more above the surface or bottom of outlet points = 7 Marks of ponding between 2 ft to < 3 ft from surface or bottom of outlet points = 5 Marks are at least 0.5 ft to < 2 ft from surface or bottom of outlet points = 3 points = 3 Wetland is flat but has small depressions on the surface that trap water points = 1 Marks of ponding less than 0.5 ft (6 in) points = 0 D 4.3. Contribution of the wetland to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself. The area of the basin is less than 10 times the area of the unit points = 5 The area of the basin is 10 to 100 times the area of the unit points = 3 The area of the basin is more than 100 times the area of the unit points = 0 Entire wetland is in the Flats class points = 5 Total for D 4 Add the points in the boxes above Rating of Site Potential If score is: 12-16 = H 6-11 = M 0-5 = L Record the rating on the first page D 5.0. Does the landscape have the potential to support hydrologic functions of the site? D 5.1. Does the wetland receive stormwater discharges? Yes = 1 No = 0 D 5.2. Is >10% of the area within 150 ft of the wetland in land uses that generate excess runoff? Yes = 1 No = 0 D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human land uses (residential at >1 residence/ac, urban, commercial, agriculture, etc.)? Yes = 1 No = 0 Total for D 5 Add the points in the boxes above Rating of Landscape Potential If score is: 3 = H 1 or 2 = M 0 = L Record the rating on the first page D 6.0. Are the hydrologic functions provided by the site valuable to society? D 6.1. The unit is in a landscape that has flooding problems. Choose the description that best matches conditions around the wetland unit being rated. Do not add points. Choose the highest score if more than one condition is met . The wetland captures surface water that would otherwise flow down-gradient into areas where flooding has damaged human or natural resources (e.g., houses or salmon redds): Flooding occurs in a sub-basin that is immediately down-gradient of unit. points = 2 Surface flooding problems are in a sub-basin farther down-gradient. points = 1 Flooding from groundwater is an issue in the sub-basin. points = 1 The existing or potential outflow from the wetland is so constrained by human or natural conditions that the water stored by the wetland cannot reach areas that flood. Explain why _____________ points = 0 There are no problems with flooding downstream of the wetland. points = 0 D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Yes = 2 No = 0 Total for D 6 Add the points in the boxes above Rating of Value If score is: 2-4 = H 1 = M 0 = L Record the rating on the first page points = 3 Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 13 Rating Form Effective January 1, 2015 These questions apply to wetlands of all HGM classes. HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold of ¼ ac or more than 10% of the unit if it is smaller than 2.5 ac . Add the number of structures checked. ____Aquatic bed 4 structures or more: points = 4 ____Emergent 3 structures: points = 2 ____Scrub-shrub (areas where shrubs have > 30% cover) 2 structures: points = 1 ____Forested (areas where trees have > 30% cover) 1 structure: points = 0 If the unit has a Forested class, check if: ____The Forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon H 1.2. Hydroperiods Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or ¼ ac to count (see text for descriptions of hydroperiods ). ____Permanently flooded or inundated 4 or more types present: points = 3 ____Seasonally flooded or inundated 3 types present: points = 2 ____Occasionally flooded or inundated 2 types present: points = 1 ____Saturated only 1 type present: points = 0 ____Permanently flowing stream or river in, or adjacent to, the wetland ____Seasonally flowing stream in, or adjacent to, the wetland ____Lake Fringe wetland 2 points ____Freshwater tidal wetland 2 points H 1.3. Richness of plant species Count the number of plant species in the wetland that cover at least 10 ft 2. Different patches of the same species can be combined to meet the size threshold and you do not have to name the species. Do not include Eurasian milfoil, reed canarygrass, purple loosestrife, Canadian thistle If you counted: > 19 species points = 2 5 - 19 species points = 1 < 5 species points = 0 H 1.4. Interspersion of habitats Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, low, or none. If you have four or more plant classes or three classes and open water, the rating is always high. None = 0 points Low = 1 point Moderate = 2 points All three diagrams in this row are HIGH = 3points Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 14 Rating Form Effective January 1, 2015 H 1.5. Special habitat features: Check the habitat features that are present in the wetland. The number of checks is the number of points. ____Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long). ____Standing snags (dbh > 4 in) within the wetland ____Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m) ____Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet weathered where wood is exposed) ____At least ¼ ac of thin-stemmed persistent plants or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians) ____Invasive plants cover less than 25% of the wetland area in every stratum of plants (see H 1.1 for list of strata) Total for H 1 Add the points in the boxes above Rating of Site Potential If score is: 15-18 = H 7-14 = M 0-6 = L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat functions of the site? H 2.1. Accessible habitat (include only habitat that directly abuts wetland unit). Calculate: % undisturbed habitat + [(% moderate and low intensity land uses)/2] = _______% If total accessible habitat is: > 1/3 (33.3%) of 1 km Polygon points = 3 20-33% of 1 km Polygon points = 2 10-19% of 1 km Polygon points = 1 < 10% of 1 km Polygon points = 0 H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: % undisturbed habitat + [(% moderate and low intensity land uses)/2] = _______% Undisturbed habitat > 50% of Polygon points = 3 Undisturbed habitat 10-50% and in 1-3 patches points = 2 Undisturbed habitat 10-50% and > 3 patches points = 1 Undisturbed habitat < 10% of 1 km Polygon points = 0 H 2.3. Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points = (- 2) 50% of 1 km Polygon is high intensity points = 0 Total for H 2 Add the points in the boxes above Rating of Landscape Potential If score is: 4-6 = H 1-3 = M < 1 = L Record the rating on the first page H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score that applies to the wetland being rated. Site meets ANY of the following criteria: points = 2 It has 3 or more priority habitats within 100 m (see next page) It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) It is mapped as a location for an individual WDFW priority species It is a Wetland of High Conservation Value as determined by the Department of Natural Resources It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan Site has 1 or 2 priority habitats (listed on next page) within 100 m points = 1 Site does not meet any of the criteria above points = 0 Rating of Value If score is: 2 = H 1 = M 0 = L Record the rating on the first page Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 15 Rating Form Effective January 1, 2015 WDFW Priority Habitats Priority habitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympia, Washington. 177 pp. http://wdfw.wa.gov/publications/00165/wdfw00165.pdf or access the list from here: http://wdfw.wa.gov/conservation/phs/list/) Count how many of the following priority habitats are within 330 ft (100 m) of the wetland unit: NOTE: This question is independent of the land use between the wetland unit and the priority habitat. Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha). Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (full descriptions in WDFW PHS report). Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. Old-growth/Mature forests: Old-growth west of Cascade crest Stands of at least 2 tree species, forming a multi- layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha ) > 32 in (81 cm) dbh or > 200 years of age. Mature forests Stands with average diameters exceeding 21 in (53 cm) dbh; crown cover may be less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth; 80-200 years old west of the Cascade crest. Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 see web link above). Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. Westside Prairies: Herbaceous, non-forested plant communities that can either take the form of a dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161 see web link above ). Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. (full descriptions of habitats and the definition of relatively undisturbed are in WDFW report see web link on previous page). Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth in soils, rock, ice, or other geological formations and is large enough to contain a human. Cliffs: Greater than 25 ft (7.6 m) high and occurring below 5000 ft elevation. Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0.15 - 2.0 m), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast height of > 20 in (51 cm) in western Washington and are > 6.5 ft (2 m) in height. Priority logs are > 12 in (30 cm) in diameter at the largest end, and > 20 ft (6 m) long. Note: All vegetated wetlands are by definition a priority habitat but are not included in this list because they are addressed elsewhere. Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 16 Rating Form Effective January 1, 2015 CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Wetland Type Check off any criteria that apply to the wetland. Circle the category when the appropriate criteria are met. Category SC 1.0. Estuarine wetlands Does the wetland meet the following criteria for Estuarine wetlands? The dominant water regime is tidal, Vegetated, and With a salinity greater than 0.5 ppt Yes Go to SC 1.1 No= Not an estuarine wetland SC 1.1. Is the wetland within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC 332-30-151? Yes = Category I No - Go to SC 1.2 Cat. I SC 1.2. Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. (If non-native species are Spartina, see page 25) At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un- mowed grassland. The wetland has at least two of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. Yes = Category I No = Category II Cat. I Cat. II SC 2.0. Wetlands of High Conservation Value (WHCV) SC 2.1. Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High Conservation Value? Yes Go to SC 2.2 No Go to SC 2.3 SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? Yes = Category I No = Not a WHCV SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://www1.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 Cat. I SC 3.0. Bogs Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below. If you answer YES you will still need to rate the wetland based on its functions. SC 3.1. Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or more of the first 32 in of the soil profile? Yes Go to SC 3.3 No Go to SC 3.2 SC 3.2. Does an area within the wetland unit have organic soils, either peats or mucks, that are less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on top of a lake or pond? Yes Go to SC 3.3 No = Is not a bog SC 3.3. Does an area with peats or mucks have more than 70% cover of mosses at ground level, AND at least a 30% cover of plant species listed in Table 4? Yes = Is a Category I bog No Go to SC 3.4 NOTE: If you are uncertain about the extent of mosses in the understory, you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present, the wetland is a bog. SC 3.4. Is an area with peats or mucks forested (> 30% cover) with Sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Engelmann spruce, or western white pine, AND any of the species (or combination of species) listed in Table 4 provide more than 30% of the cover under the canopy? Yes = Is a Category I bog No = Is not a bog Cat. I Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 17 Rating Form Effective January 1, 2015 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 If you answer YES you will still need to rate the wetland based on its functions. Old-growth forests (west of Cascade crest): Stands of at least two tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 in (81 cm) or more. Mature forests (west of the Cascade Crest): Stands where the largest trees are 80- 200 years old OR the species that make up the canopy have an average diameter (dbh) exceeding 21 in (53 cm). Yes = Category I No = Not a forested wetland for this section Cat. I SC 5.0. Wetlands in Coastal Lagoons Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks The lagoon in which the wetland is located contains ponded water that is saline or brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the bottom) Yes Go to SC 5.1 No = Not a wetland in a coastal lagoon SC 5.1. Does the wetland meet all of the following three conditions? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less than 20% cover of aggressive, opportunistic plant species (see list of species on p. 100). At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un- mowed grassland. The wetland is larger than 1/10 ac (4350 ft2) Yes = Category I No = Category II Cat. I Cat. II SC 6.0. Interdunal Wetlands Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? If you answer yes you will still need to rate the wetland based on its habitat functions. In practical terms that means the following geographic areas: Long Beach Peninsula: Lands west of SR 103 Grayland-Westport: Lands west of SR 105 Ocean Shores-Copalis: Lands west of SR 115 and SR 109 Yes Go to SC 6.1 No = not an interdunal wetland for rating SC 6.1. Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form (rates H,H,H or H,H,M for the three aspects of function)? Yes = Category I No Go to SC 6.2 SC 6.2. Is the wetland 1 ac or larger, or is it in a mosaic of wetlands that is 1 ac or larger? Yes = Category II No Go to SC 6.3 SC 6.3. Is the unit between 0.1 and 1 ac, or is it in a mosaic of wetlands that is between 0.1 and 1 ac? Yes = Category III No = Category IV Cat I Cat. II Cat. III Cat. IV Category of wetland based on Special Characteristics If you answered No for all types, Summary Form Wetland name or number ______ Wetland Rating System for Western WA: 2014 Update 18 Rating Form Effective January 1, 2015 This page left blank intentionally Pictometry, King County I Wetland 2 - Figure 1Meridian Court RAI Project #: 2021-052-001 Note: Wetland Boundaries are based on handheld GPS coordinates and have not been surveyed. Boundaries are approximate and for planning purposes only. Outlet PFO (3 strata) PSS 150ft Polygon Wetland 2 00 100100 2002005050 FeetFeet Seasonally flooded, Ocassionally flooded, & Saturated Only Pictometry, King C ounty I Wetland 2 - Figure 2Meridian Court RAI Project #: 2021-052-001 Note : Wetland Boundaries are based on handheld GPS coordinates and have not been surveyed. Boundaries are approximate and for plann ing purposes only. Contributing Basin Wetland 2 00 300300 600600150150 Fe etFeet Pictometry, King County I Wetland 2 - Figure 3Meridian Court RAI Project #: 2021-052-001 Note: Wetland Boundaries are based on handheld GPS coordinates and have not been surveyed. Boundaries are approximate and for planning purposes only. Low Moderate Habitat Accessible Habitat Undisturbed Habitat 1KM Polygon Approximate Wetland Boundaries 00 0.20.2 0.40.40.10.1 MilesMiles Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CN ES/Airbus DS, U SDA, USGS, AeroGRID, IGN, and the GIS User Community, King County I Wetland 2 - Figure 4Meridian Court RAI Project #: 2021-052-001 Note : Wetland Boundaries are based on handheld GPS coordinates and have not been surveyed. Boundaries are approximate and for plann ing purposes only. Approximate Wetland Location Hylebos C reek Basin 303(d) Waters Streams 00 11 220.50.5 MilesMiles Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CN ES/Airbus DS, U SDA, USGS, AeroGRID, IGN, and the GIS User Community I Wetland 2 - Figure 5Meridian Court RAI Project #: 2021-052-001 Note : Wetland Boundaries are based on handheld GPS coordinates and have not been surveyed. Boundaries are approximate and for plann ing purposes only. Approximate Wetlan d Lo cation WR IA 1 0 TMDL Projects Approved In Dev elopm ent 00 22 4411 MilesMiles APPENDIX C Proposed Site Plan for Meridian Court (Source: The Blueline Group, March 23, 2021) 23 RD AVENUE SOUTH 8" DF 8" AL 6" PR 8" PR 8" PR 8" PR 6" PR 8" PR VMPL VMPL VMPL 12" LP 12" LP 16" LP 4" MPL VMPL VMPL 6" MPL AL 16" LP 8" CP WWWWTSDSDSDSDSD SD SD SD SD SD SD SD 6" SV(MS) 6" SV(MS) 4" SV 5" SV(MS) 5" SV(MS) 6" SV (MS) 6" SV(MS) PROJECT #: DRAWN BY: FILE NAME: PERMIT SET Issue Dates Rev.Desc.Date COPYRIGHT: USE OF THIS DRAWING WITHOUT AUTHORIZATION OF BLUELINE IS PROHIBITED WITHOUTTHEIR WRITTEN CONSENT. © 20215355 MIRA SORRENTO PLACE, SUITE 100SAN DIEGO, CA 92121OWNER APPLICANT:FAIRFIELD RESIDENTIAL31420 23RD AVE SFEDERAL WAY , WA 98003MERIDIAN COURT SENIOR HOUSING RENOVATIONSITE ADDRESS:15200 52nd Avenue South, Suite 210, Tukwila, WA 98188 P: 206.204.0507 WWW.THEBLUELINEGROUP.COM C H R IS D. PETERSE N N O. 570 EXP. 10/0 6 /2 0 2 1STATEO F WASHIN G T ONL A NDSCAPE ARC H IT E C TPROJ. MGR.: PROJECT #: DRAWN BY: FILE NAME: PERMIT SET Issue Dates Rev.Desc.Date COPYRIGHT: USE OF THIS DRAWING WITHOUT AUTHORIZATION OF BLUELINE IS PROHIBITED WITHOUTTHEIR WRITTEN CONSENT. © 20215355 MIRA SORRENTO PLACE, SUITE 100SAN DIEGO, CA 92121OWNER APPLICANT:FAIRFIELD RESIDENTIAL31420 23RD AVE SFEDERAL WAY , WA 98003MERIDIAN COURT SENIOR HOUSING RENOVATIONSITE ADDRESS:15200 52nd Avenue South, Suite 210, Tukwila, WA 98188 P: 206.204.0507 WWW.THEBLUELINEGROUP.COM C H R IS D. PETERSE N N O. 570 EXP. 10/0 6 /2 0 2 1STATEO F WASHIN G T ONL A NDSCAPE ARC H IT E C TPROJ. MGR.: 5 100 20' BUILDING 2 SEE A/L1.2 FOR BUILDING 1 COURTYARD ENLARGEMENT SEE B/L1.2 FOR BUILDING 2 COURTYARD ENLARGEMENT SEE C/L1.2 FOR BUILDING 2 BIKE PARKING ENLARGEMENT MAIN ENTRY BUILDING 1 L1.1 LA20-306 L1.X DR CP LANDSCAPE SITE PLAN PROPERTY LINE 5' REAR SETBACK 15' REAR LANDSCAPE BUFFER EXISTING WETLAND 8" PR AD AD 4" MPL VMPL VMPL 6" MPLSDSDAD AD 4" MPL 4" MPL 6" MPL VMPL VMPL VMPL 6" PR 6" MPLSDSDAD PROJECT #: DRAWN BY: FILE NAME: PERMIT SET Issue Dates Rev.Desc.Date COPYRIGHT: USE OF THIS DRAWING WITHOUT AUTHORIZATION OF BLUELINE IS PROHIBITED WITHOUTTHEIR WRITTEN CONSENT. © 20215355 MIRA SORRENTO PLACE, SUITE 100SAN DIEGO, CA 92121OWNER APPLICANT:FAIRFIELD RESIDENTIAL31420 23RD AVE SFEDERAL WAY , WA 98003MERIDIAN COURT SENIOR HOUSING RENOVATIONSITE ADDRESS:15200 52nd Avenue South, Suite 210, Tukwila, WA 98188 P: 206.204.0507 WWW.THEBLUELINEGROUP.COM C H R IS D. PETERSE N N O. 570 EXP. 10/0 6 /2 0 2 1STATEO F WASHIN G T ONL A NDSCAPE ARC H IT E C TPROJ. MGR.: PROJECT #: DRAWN BY: FILE NAME: PERMIT SET Issue Dates Rev.Desc.Date COPYRIGHT: USE OF THIS DRAWING WITHOUT AUTHORIZATION OF BLUELINE IS PROHIBITED WITHOUTTHEIR WRITTEN CONSENT. © 20215355 MIRA SORRENTO PLACE, SUITE 100SAN DIEGO, CA 92121OWNER APPLICANT:FAIRFIELD RESIDENTIAL31420 23RD AVE SFEDERAL WAY , WA 98003MERIDIAN COURT SENIOR HOUSING RENOVATIONSITE ADDRESS:15200 52nd Avenue South, Suite 210, Tukwila, WA 98188 P: 206.204.0507 WWW.THEBLUELINEGROUP.COM C H R IS D. PETERSE N N O. 570 EXP. 10/0 6 /2 0 2 1STATEO F WASHIN G T ONL A NDSCAPE ARC H IT E C TPROJ. MGR.: A BUILDING 1 COURTYARD ENLARGEMENT SCALE: 1" = 10' 5 100 20' B BUILDING 2 COURTYARD ENLARGEMENT SCALE: 1" = 10' 5 100 20' EXISTING PAVEMENT TO REMAIN ( EXISTING PLANTING TO REMAIN TYP. ( EXISTING PLANTING TO REMAIN TYP. ( EXISTING PAVEMENT TO REMAIN ( EXISTING PLANTING TO REMAIN TYP. ( EXISTING PLANTING TO REMAIN TYP. ( L1.2 LA20-306 L1.X DR CP SITE PLAN ENLARGEMENTS REMOVE EXISTING FOUNTAIN AND GRAVEL AND REPLACE WITH RAISED CIRCULAR CONCRETE BLOCK PLANTER IN EXISTING 11'± DIAMETER PAVEMENT OPENING PER DETAIL 3/L2.1. SEE SHEET L3.1 FOR PLANT SCHEDULE, PLANTING DETAILS AND NOTES. ( EXISTING PLANTING TO REMAIN TYP. ( 4' TYP.4' TYP.4' TYP. 4' 2' TYP.4' TYP.4' TYP. 2' TYP. 4' GARDEN PLANTERS, 10 PAIRS, SEE SPECIFICATION THIS SHEET. SEE LANDSCAPE NOTES ON SHEET L3.1 FOR SOIL REQUIREMENTS.(( SPECIFICATIONS: 1.GARDEN PLANTERS: 2'WX8'LX2'H GALV. WATER TROUGHS, BEHLEN BOUNTRY 228 GALV. ROUND END TANK, MODEL NO. 50130058, OR APPROVED EQUAL. 2.YARD HYDRANT: ·FREEZELESS, ADJUSTABLE FLOW, 2' BURIAL DEPTH, 1" GALV. STEEL PIPE CASING, 3/4" FPT INLET AND OUTLET, AUTOMATIC DRAIN, 1/8" N.P.T DRAIN HOLE, 125 PSI MAX. WORKING PRESSURE. WOODFORD Y34-2 OR APPROVED EQUAL. ·MOUNT PIPE TO 4X4 PT FIR POST EMBEDDED IN CONC. FOOTING WITH (2) GALV. PIPE STRAPS. ·PROVIDE 8" DEPTH X 18" SQUARE 3/4" DRAIN ROCK SUMP INSIDE 2X6 PT FIR BOX FLUSH WITH GRADE BENEATH HYDRANT OUTLET. ·PROVIDE OWNER-APPROVED GARDEN HOSE HANGER MOUNTED TO 4X4 POST. ·COORDINATE WATER POINT OF CONNECTION WITH OWNER. YARD HYDRANT SEE SPECIFICATION THIS SHEET, CONFIRM LOCATION AND QUANTITY WITH OWNER( YARD HYDRANT SEE SPECIFICATION THIS SHEET, CONFIRM LOCATION AND QUANTITY WITH OWNER( GARDEN PLANTERS, 10 PAIRS, SEE SPECIFICATION THIS SHEET. SEE LANDSCAPE NOTES ON SHEET L3.1 FOR SOIL REQUIREMENTS.(( REMOVE EXISTING FOUNTAIN AND GRAVEL AND REPLACE WITH RAISED CIRCULAR CONCRETE BLOCK PLANTER IN EXISTING 11'± DIAMETER PAVEMENT OPENING PER DETAIL 3/L2.1. SEE SHEET L3.1 FOR PLANT SCHEDULE, PLANTING DETAILS AND NOTES. ( C BUILDING 2 BIKE PARKING ENLARGEMENT SCALE: 1/8" = 1'-0" 4 80 16' DEMO & TREE REMOVAL PLAN( BUILDING FACE ( CONC. BLOCK RETAINING WALL, FIELD VERIFY REQUIRED HEIGHT BASED ON EXIST. GRADES RELOCATED AREA DRAIN REMOVE TREES( TWO-TIER BIKE RACKS FOR 20 BIKES, SEE DETAILS 1 & 2/L2.1 NEW 4" DEPTH CONCRETE PAVEMENT, SLOPE TOWARD AREA DRAIN AT 2% MAX., BROOM FINISH BIKE SHELTER, SEE DETAIL 1/L2.1 MEET AND MATCH EX. CONCRETE PAVEMENT ( SHELTER POST ON 18" SQ.X12" DEEP CONC. FOOTING, TYP. 8'-2"17'-2"2'-6"3'-10" EXIST. CONC. PATIO EXIST. CONC. PATIO EXISTING AREA DRAIN, ADJUST LOCATION AS REQUIRED TO ACCOMMODATE PROPOSED IMPROVEMENTS 5' TOP OF SLOPE, TYP.6" 13' 6'-6"℄EXISTING DRIVEWAYBOTTOM OF ACCESS DRIVE SLOPE BOTTOM OF ACCESS DRIVE SLOPE (APPROX.) SLOPING ACCESS DRIVE TO COURTYARDSLOPING ACCESS DRIVE TO COURTYARD LAYOUT PLAN( 11'± DIA. EXIST. PAVEMENT OPENING6"1'-6"3"1' 1'-3"UNDISTURBED OR COMPACTED SUBGRADE CYPRESS STONE BLOCK TAPERED UNIT, TYP., 6"H X 8"W X 12"D 3" DEPTH MULCH CYPRESS STONE REVERS-A-CAP UNIT, SECURE WITH CONCRETE ADHESIVE FILTER FABRIC BEHIND WALL AND AROUND CRUSHED ROCK BASE, TYP. EX. CONC. PAVING 4" DEPTH COMPACTED 58" MINUS CRUSHED ROCK BASE 1/2" PER FT.1/2" PER FT. EX. CONC. PAVING NOTE: CONC. BLOCK WALL SHALL BE CYPRESS STONE BY MUTUAL MATERIALS, COLOR: CASCADE BLEND. WWW.MUTUALMATERIALS.COM L2.1 20-306 L2.X DR CP SITE DETAILS 3 COURTYARD CONC. BLOCK PLANTER SCALE: 1" = 1'-0" 2 BICYCLE RACK NOT TO SCALE 1 BICYCLE STORAGE SHELTER SCALE: 1" = 4'-0" PROJECT #: DRAWN BY: FILE NAME: PERMIT SET Issue Dates Rev.Desc.Date COPYRIGHT: USE OF THIS DRAWING WITHOUT AUTHORIZATION OF BLUELINE IS PROHIBITED WITHOUTTHEIR WRITTEN CONSENT. © 20215355 MIRA SORRENTO PLACE, SUITE 100SAN DIEGO, CA 92121OWNER APPLICANT:FAIRFIELD RESIDENTIAL31420 23RD AVE SFEDERAL WAY , WA 98003MERIDIAN COURT SENIOR HOUSING RENOVATIONSITE ADDRESS:15200 52nd Avenue South, Suite 210, Tukwila, WA 98188 P: 206.204.0507 WWW.THEBLUELINEGROUP.COM C H R IS D. PETERSE N N O. 570 EXP. 10/0 6 /2 0 2 1STATE O F W ASHIN GTONL A NDSCAPE ARC H IT E C TPROJ. MGR.: NOTES: 1.SHELTER IS SIZED TO ACCOMMODATE A TOTAL OF (5) CYCLESAFE QUAD HI-DENSITY BIKE RACKS @ 4 BIKES EACH FOR A TOTAL OF 20 BIKES. PLACE (2) QUADS UNDER 2-CANOPY SECTION AND (3) QUADS UNDER 3-CANOPY SECTION. 1.CANOPY UNIT SHALL BE STANDARD SANDSTONE COLOR, RAL 1019. 2.FRAME SHALL BE SURFACE MOUNT WITH STANDARD TAUPE COLOR. 3.DO NOT INCLUDE SIDE PANELS. NOTES: 1.BIKE RACKS SHALL BE CYCLESAFE QUAD HI-DENSITY RACKS, SILVER POWDERCOAT STEEL WITH EXTRUDED PVC CHANNELS, MOUNT PER MANUF'S RECOMMENDATIONS. 2.SPACE RACKS PER MANUFACTURER'S RECOMMENDATIONS. CYPRESS STONE WALL, SEE DETAIL 4/L2.1 (SIM.) 4" CONC. PAVEMENT BEYOND TOP OF WALL BEYOND CYPRESS STONE WALL, HEIGHT VARIES, STEP TO FOLLOW EXISTING GRADE, SEE DETAIL 4/L2.1 (SIM.) EXISTING GRADE 8' HIGH CHAIN LINK FENCE, SEE NOTES BIKE SHELTER, SEE DETAIL 1/L2.1 6' HIGH CHAIN LINK GATE FACING SOUTH FACE OF BUILDING BEYOND FACE OF BUILDING/ BUILDING CORNER BEYOND 4" CONC. PAVEMENT, SLOPE TO DRAIN AT 2% MAX., 1% MIN., BROOM FINISH 2" DEPTH 5/8" MINUS CR. ROCK, PLATE COMPACTED INSTALL QUAD HI-DENSITY BIKE RACKS (NOT SHOWN) PER DETAIL 2/L2.1 BENEATH SHELTERACCESS AISLE SPECIFICATIONS: 1.CHAIN LINK FENCE AND GATE ·TERMINAL/CORNER/GATE POSTS: 2.875" O.D. SCH 40 GALV. STEEL PIPE PER ASTM F1043 W/ DOME CAPS PER ASTM F626 ·LINE POSTS: 2.375" O.D. SCH 40 GALV. STEEL PIPE PER ASTM F1043 W/ LOOP CAPS PER ASTM F626, 10' MAX. SPACING ·TOP AND BRACE RAILS: 1-5/8" O.D. SCH 40 GALV. STEEL PIPE PER ASTM F1043 ·BOTTOM TENSION WIRE: 7 GA. ZINC COATED STEEL PER ASTM A824 ·TENSION AND BRACE BANDS: 12 GA., 3/4" MIN. WIDTH, ZINC-COATED STEEL ·TENSION BARS: PER ASTM F626, ZINC-COATED STEEL, ONE-PIECE LENGTH 2" LESS THAN FABRIC HEIGHT, MIN. CROSS SECTION OF 3/16" X 3/4" ·CHAIN LINK FABRIC: 2" SQ., 9 GA., ZINC-COATED PER ASTM A392, KNUCKLE SELVAGE TOP, TWIST SELVAGE BOTTOM ·TIE WIRE AND HOG RINGS: 9 GA. ZINC-COATED STEEL WIRE PER ASTM F626 ·FINISH: GALVANIZED, ALL COMPONENTS ·GATE DIMENSIONS: 6' HIGH X 36" WIDE W/ 2' HIGH CHAIN LINK FABRIC INFILL ABOVE ·GATE LATCH AND ACCESS CONTROL MECHANISM PER OWNER REQUIREMENTS ·POST FOOTINGS: CLASS 3000 CONCRETE, 12" DIA. X 3' DEEP MIN. 2.CONCRETE BLOCK WALL: CYPRESS STONE W/COPING UNIT CAP BY MUTUAL MATERIALS, SEE DETAIL 4/L2.1 (SIM.). 3.CONCRETE PAVEMENT: CONCRETE SHALL BE CLASS 3000 PORTLAND CEMENT PER WSDOT SPEC. 6-02.3(2), 3000 PSI MIN. COMPRESSIVE STRENGTH AT 28 DAYS, 5-1/2" MAX. SLUMP, AIR-ENTRAINED WITH 4.5-7.5% AIR CONTENT, ADMIXTURES AS APPROVED BY OWNER. NATURAL GRAY COLOR, BROOM FINISH. 4.BIKE SHELTER AND RACKS: SEE DETAILS 1 & 2/L2.1 EXISTING CURB TOP RAIL BRACE RAIL LINE POST CORNER POST CHAIN LINK FABRIC CYPRESS STONE WALL, HEIGHT VARIES, STEP TO FOLLOW EXISTING GRADE, SEE SECTION A FOR SPECIFICATIONS AND DETAIL 4/L2.1 (SIM.) 4" HDPE PERF PIPE, CONNECT TO AREA DRAIN DRAINAGE AGGREGATE WRAPPED IN FILTER FABRIC EXISTING GRADE 4" CONC. PAVEMENT, SLOPE TO DRAIN AT 2% MAX., 1% MIN., SEE SECTION A FOR SPECIFICATIONS 2" DEPTH 5/8" MINUS CR. ROCK, PLATE COMPACTED AREA DRAIN, RELOCATE AND RECONNECT, SEE PLAN LAYOUT 8' HIGH CHAIN LINK FENCE, SEE SECTION A FOR SPECIFICATIONS BIKE SHELTER, SEE DETAIL 1/L2.1 TOP OF WALL BEYOND FACE OF BUILDING AT SECTION LINE FACE OF BUILDING BEYOND 4" MAX. GAP COMPACTED SUBGRADE INSTALL QUAD HI-DENSITY BIKE RACKS (NOT SHOWN) PER DETAIL 2/L2.1 BENEATH SHELTERACCESS AISLE EXISTING CURB TOP RAIL BRACE RAIL TERMINAL POST CORNER POST CHAIN LINK FABRIC NOTE: SEE SECTION A, THIS SHEET, FOR SPECIFICATIONS. CONCRETE AT POSTS SHALL BE 12" DEPTH X 18" SQUARE W/ #4 TIES TOP AND BOTTOM L2.2 20-306 L2.X DR CP SITE DETAILS A BICYCLE STORAGE AREA SECTION SCALE: 1/2" = 1'-0" PROJECT #: DRAWN BY: FILE NAME: PERMIT SET Issue Dates Rev.Desc.Date COPYRIGHT: USE OF THIS DRAWING WITHOUT AUTHORIZATION OF BLUELINE IS PROHIBITED WITHOUTTHEIR WRITTEN CONSENT. © 20215355 MIRA SORRENTO PLACE, SUITE 100SAN DIEGO, CA 92121OWNER APPLICANT:FAIRFIELD RESIDENTIAL31420 23RD AVE SFEDERAL WAY , WA 98003MERIDIAN COURT SENIOR HOUSING RENOVATIONSITE ADDRESS:15200 52nd Avenue South, Suite 210, Tukwila, WA 98188 P: 206.204.0507 WWW.THEBLUELINEGROUP.COM C H R IS D. PETERSE N N O. 570 EXP. 10/0 6 /2 0 2 1STATE O F W ASHIN GTONL A NDSCAPE ARC H IT E C TPROJ. MGR.: B BICYCLE STORAGE AREA SECTION SCALE: 1/2" = 1'-0" PLANT SCHEDULE L3.1 20-306 L3.X DR CP LANDSCAPE DETAILS, NOTES, AND SCHEDULE PROJECT #: DRAWN BY: FILE NAME: PERMIT SET Issue Dates Rev.Desc.Date COPYRIGHT: USE OF THIS DRAWING WITHOUT AUTHORIZATION OF BLUELINE IS PROHIBITED WITHOUTTHEIR WRITTEN CONSENT. © 20215355 MIRA SORRENTO PLACE, SUITE 100SAN DIEGO, CA 92121OWNER APPLICANT:FAIRFIELD RESIDENTIAL31420 23RD AVE SFEDERAL WAY , WA 98003MERIDIAN COURT SENIOR HOUSING RENOVATIONSITE ADDRESS:15200 52nd Avenue South, Suite 210, Tukwila, WA 98188 P: 206.204.0507 WWW.THEBLUELINEGROUP.COM C H R IS D. PETERSE N N O. 570 EXP. 10/0 6 /2 0 2 1STATE O F W ASHIN GTONL A NDSCAPE ARC H IT E C TPROJ. MGR.: 2-3 TIMES ROOTBALL DIA. NOTES: 1.TREE STAKES TO BE VERTICAL, PARALLEL, EVEN-TOPPED, UNSCARRED AND DRIVEN INTO UNDISTURBED SUBGRADE. PLACE FOR LOCAL WIND CONDITIONS. 2.PLANT TREE SO TOP OF ROOT CROWN IS 2" HIGHER THAN ADJACENT GRADE WITH TRUNK FLARE JUST ABOVE SOIL LINE. REMOVE TWINE AND CORD FROM TREE TRUNK EXISTING SUBGRADE TRUNK FLARE FINISH GRADE 'ARBOR TIE' OR APPROVED EQUAL TREE TIES 8-FOOT X 2" DIAMETER WOOD TREE STAKES, 2 PER TREE, JASPER OR EQUAL 2"-3" DEPTH MEDIUM BARK MULCH, FEATHER DEPTH TO TRUNK, MULCH SHALL NOT CONTACT TRUNK 2" WATERING BASIN SURROUNDING TREE PULL BURLAP OFF TOP 1/3 OF ROOTBALL BACKFILL WITH NATIVE AMENDED SOIL OR 3:1 NATIVE SOIL/COMPOST MIX SCARIFY PLANTING PIT SIDES, SLOPE SIDES AT 1H:3V SET ROOTBALL ON MOUND OF UNDISTURBED BASE 2 TIMES ROOTBALL DIA. NOTE: PLANT TREE SO TOP OF ROOT CROWN IS 1" HIGHER THAN ADJACENT GRADE. REMOVE BURLAP FROM TOP 1/3 OF ROOTBALL. LIGHTLY SCARIFY ROOTBALL OF CONTAINER-GROWN PLANTS PRIOR TO BACKFILLING. 2"-3" DEPTH BARK MULCH, FEATHER DEPTH TO STEM, MULCH SHALL NOT CONTACT STEM 2" WATERING BASIN SURROUNDING PLANT BACKFILL WITH NATIVE AMENDED SOIL OR 3:1 NATIVE SOIL/COMPOST MIX SCARIFY PLANTING PIT WALLS EXISTING SUBGRADE SET ROOTBALL ON MOUND OF UNDISTURBED SOIL FINISH GRADE DECIDUOUS TREE PLANTING1 SHRUB PLANTING2 LANDSCAPE CONTRACTOR SHALL VERIFY LOCATION OF ALL SITE UTILITIES PRIOR TO LANDSCAPE IMPLEMENTATION. PLANT LOCATIONS MAY BE ADJUSTED TO AVOID CONFLICT. LANDSCAPE CONTRACTOR SHALL TAKE NECESSARY PRECAUTIONS TO PROTECT EXISTING SITE IMPROVEMENTS, PAVING, WALLS, AND UNDERGROUND UTILITIES. DAMAGE SHALL BE REPAIRED TO THE OWNER'S SATISFACTION AND AT NO ADDITIONAL COST. PLANT COUNT IS FOR THE CONTRACTOR'S CONVENIENCE; IF THERE IS A DISCREPANCY, THE PLAN SHALL GOVERN. ACTUAL PLANT QUANTITIES TO BE DETERMINED BY REQUIRED PLANT SPACING. SUBSTITUTION OF PLANT VARIETIES DUE TO LACK OF AVAILABILITY SUBJECT TO APPROVAL BY THE LANDSCAPE ARCHITECT. FINISH GRADE OF MULCHED LANDSCAPE AREAS SHALL BE GRADED TO 1/2" MAX. BELOW CONCRETE OR OTHER PAVED SURFACES. ALL AREAS LEFT UNPLANTED SHALL BE DRESSED WITH 3" DEPTH BARK MULCH. 9.BARK MULCH SHALL BE 10.IMPORT TOPSOIL FOR RAISED PLANTERS SHALL CONSIST OF APPROX. 33-50% COMPOST AND 50-65% SAND OR SANDY LOAM AND MEET THE FOLLOWING SPECIFICATIONS: ORGANIC MATTER (DRY WEIGHT):15-20% CONDUCTIVITY (MMHS/CM):<3 pH:6.0-7.5 CEC:>10 meg/100g USDA TEXTURE:SANDY LOAM WAC METALS:PASS (CEDAR GROVE 3-WAY TOPSOIL AND PACIFIC TOPSOILS 3-WAY TOPSOIL ARE APPROVED PRODUCTS MEETING THIS SPEC.) 11.FIRST TWO-INCH LIFT OF TOPSOIL IN PROPOSED PLANTING AREAS SHALL BE THOROUGHLY MIXED INTO EXISTING SUBSOIL TO A 4" MIN. DEPTH. 12.GARDEN PLOTS SHALL RECEIVE 12-INCH COMPACTED DEPTH APPROVED POTTING SOIL OVER APPROVED LIGHTWEIGHT FILL SUCH AS FOAM BLOCKS TO MINIMIZE PLANTER WEIGHT. (CEDAR GROVE VEGETABLE GARDEN MIX AND PACIFIC TOPSOILS SPECIAL GARDEN MIX ARE APPROVED PRODUCTS.) LANDSCAPE NOTES: Detail 4/L2.1 - Decomposed Granite PathMeridian Court Senior Housing RenovationPrepared by: Blueline, 10-26-2021Blueline project no. 20-306