Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
20-101386-Critical Areas Report-04-09-2020-V2
CRITICAL AREAS REPORT AND BUFFER AVERAGING PLAN FILE #16-102947-UP & FILE #16-102948-SE GREENLINE BUILDING A FEDERAL WAY, WASHINGTON Prepared For: FEDERAL WAY CAMPUS, LLC Los Angeles, California Prepared By: TALASAEA CONSULTANTS, INC. Woodinville, Washington 29 March 2017 (Revised 10 February 2020) Critical Areas Report and Buffer Averaging Plan File #16-102947-UP & File #16-102948-SE Greenline Building A Federal Way, Washington Prepared For: Dana Ostenson, Executive Vice President Federal Way Campus, LLC 11111 Santa Monica Boulevard, Suite 800 Los Angeles, California 90025 Prepared By: Talasaea Consultants, Inc. 150250 Bear Creek Road NE Woodinville, Washington 98077 (425) 861-7550 29 March 2017 (Revised 10 February 2020) Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page i EXECUTIVE SUMMARY PROJECT NAME: Greenline Building A APPLICANT: Tom Messmer, Vice President, Federal Way Campus, LLC (FWC) LOCATION: The Project Site is a combination of portions of two parcels (King Country Parcel numbers 614250-0005 and 614260-0200) located in Federal Way, Washington. The coordinates for the center of the Project Site are 47.29719, -122.29405. The Project Site is 15.6 acres in size. The Public Land Survey System location of the Project Site is Section 21, Township 21 North, Range 4 East, Willamette Meridian. PROJECT STAFF: Bill Shiels, Principal; Ann Olsen, RLA, Senior Project Manager; Jennifer Marriott, PWS, Senior Ecologist; David Teesdale, PWS, Senior Ecologist; Richard Tveten, Senior Ecologist; and Kristen Numata, Ecologist FIELD SURVEY: Site evaluations and wetland delineations were performed between December 2015 and present. DETERMINATION: Thirteen (13) wetlands were identified on or adjacent to the Project Site. These wetlands were evaluated using the 1994 Federal Way City Code (FWCC) as required by the Concomitant Agreement between the City of Federal Way and Weyerhaeuser Company in 1994 for the larger Weyerhaeuser Property. The 1994 FWCC does not have a method for rating wetlands, and requires 100-foot setbacks for all wetlands. One (1) minor stream and one (1) non-regulated upland-excavated ditch were also identified on the Project Site. HYDROLOGY: Hydrology for the Project Site wetlands is supported, for the most part, by seasonal precipitation and interception of surface water flow, as well as groundwater to a lesser extent. SOILS: The NRCS maps one type of soil in the entirety of the Project Site, Alderwood gravelly sandy loam, 0 to 8 percent slopes. The National Technical Committee on Hydric Soils does not include Alderwood gravelly sandy loam as a hydric soil. VEGETATION: The majority of the Project Site is a Douglas fir forest with an understory dominated by salal. Other typical species present within the uplands include salmonberry, vine maple, and other native shrub and herbaceous species. Several non-native species of tree are present along the gravel access roads, clearly planted at some point in the past, and English ivy has overtaken the understory in the northeast corner of the Project Site. Areas around Wetlands ED and EF include a relatively young stand of red alder with salmonberry. Typical vegetation within the wetlands includes salmonberry, elderberry, and several species of willow. Many portions of these wetlands are depressions with minimal to no vegetation present. PROPOSED PROJECT: FWC, LLC is proposing to develop a general commodity building on approximately 15-acres of CP-01 zoned land. The proposed building will be approximately 226,092 square feet (sf) and include the associated infrastructure, parking, and stormwater facilities. A stormwater quality control and detention pond will be constructed through an easement on the parcel located to the south. FWC, LLC owns this parcel. Limited commercial vehicle ingress and egress access will be off Weyerhaeuser Way S. A 50-foot wide Managed Forest Buffer (MFB) along Weyerhaeuser Way S, expanded to 100-feet along Highway 18, will be maintained consistent with the arborist-prepared management plan, as required by the Concomitant Agreement with the City. ASSESSMENT OF DEVELOPMENT IMPACTS: The proposed site plan has been designed to minimize impacts to critical areas to the greatest extent practicable while meeting the criteria for Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page ii development of a viable project and conforming to the City of Federal Way standards and zoning. In attempting to avoid wetland impacts on this site, several different configurations were evaluated to find the best fit for the project needs. Despite these efforts, some impacts to critical areas are unavoidable in order to achieve an economically viable project. Construction of the proposed development and stormwater pond would directly impact (fill) 9,922 sf of wetlands. Buffer modification with averaging will be used for Wetlands DQ, DT and DR and Stream EA to compensate for unavoidable site development encroachments, as allowed pursuant to the Concomitant Agreement. Buffer averaging will occur on the Project Site, such that the post-development buffer area will be equal to or greater than the pre- development buffer area. None of the buffer replacement area is located in the MFB. PROPOSED COMPENSATION: No mitigation is proposed to compensate for wetland impacts as the wetland impacts are exempt from City of Federal Way regulations. No performance monitoring is proposed for the buffer averaging as the replacement areas are equal to or greater than the areas reduced in both size and quality. Supplemental plantings in these post- development buffers will be managed long-term in conjunction with the other vegetation management required for the Site as part of either the Managed Forest Buffer or non-critical area landscaping. Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page iii TABLE OF CONTENTS Executive Summary ......................................................................................................... i Table of Contents ............................................................................................................ iii List of Figures, Tables and Appendices .......................................................................... v Chapter 1. Introduction ................................................................................................ 1 1.1 Purpose of Report ............................................................................... 1 1.2 Statement of Accuracy ........................................................................ 1 1.3 Qualifications ....................................................................................... 1 Chapter 2. General Property Description and land use ............................................... 2 2.1 Project Site Location ........................................................................... 2 2.1.1 Project Site Description ....................................................................... 2 Chapter 3. Methodology .............................................................................................. 2 3.1 Background Data Reviewed ................................................................ 2 3.2 Field Investigation ............................................................................... 3 Chapter 4. Results ....................................................................................................... 4 4.1 Analysis of Existing Information ........................................................... 4 4.1.1 USGS Quadrangle Map ...................................................................... 4 4.1.2 National Wetland Inventory Map ......................................................... 4 4.1.3 Natural Resources Conservation Service Map .................................... 4 4.1.4 King County GIS Database ................................................................. 4 4.2 Analysis of Existing Conditions ............................................................ 4 4.2.1 Wetland DP ......................................................................................... 5 4.2.2 Wetland DQ ......................................................................................... 6 4.2.3 Wetland DR ......................................................................................... 6 4.2.4 Wetland DT ......................................................................................... 6 4.2.5 Wetland DU ......................................................................................... 6 4.2.6 Wetland DW ........................................................................................ 7 4.2.7 Wetland DX ......................................................................................... 7 4.2.8 Wetland DZ ......................................................................................... 7 4.2.9 Wetland EB ......................................................................................... 7 4.2.10 Wetland EC ......................................................................................... 7 4.2.11 Wetland ED ......................................................................................... 8 4.2.12 Wetland EE ......................................................................................... 8 4.2.13 Wetland EF .......................................................................................... 8 4.2.14 Stream EA ........................................................................................... 8 4.2.15 Non-regulated Ditch ............................................................................ 8 4.3 Wildlife Surveys and Habitat Assessments ......................................... 8 4.3.1 Listed Species - Salmonids ................................................................. 9 4.3.2 Bald Eagles ......................................................................................... 9 Chapter 5. Regulatory Review ................................................................................... 10 5.1 Federal and State Regulations .......................................................... 10 5.2 City of Federal Way Permitting Approach.......................................... 10 5.2.1 Wetlands ........................................................................................... 11 5.2.2 Streams ............................................................................................. 11 Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page iv 5.2.3 Other Linear Features ....................................................................... 12 Chapter 6. Proposed Project ..................................................................................... 12 6.1 Proposed Project ............................................................................... 12 6.2 Stormwater Treatment ....................................................................... 12 Chapter 7. Assessment of Development Impacts ...................................................... 12 7.1 Wetland Impact Analysis ................................................................... 12 7.1.1 Wetland Impacts ................................................................................ 12 7.1.2 Wetland Buffers ................................................................................. 13 7.1.3 Wetland Buffer Averaging .................................................................. 13 7.2 Stream Impact Analysis ..................................................................... 14 7.2.1 Stream Impacts ................................................................................. 14 7.2.2 Stream Buffer .................................................................................... 14 7.2.3 Stream Buffer Averaging ................................................................... 14 7.3 Critical Area Fencing ......................................................................... 14 7.4 Critical Area Signs ............................................................................. 15 Chapter 8. Summary ................................................................................................. 15 Chapter 9. References .............................................................................................. 16 Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page v LIST OF FIGURES Figure 1. Vicinity Map and Driving Directions Figure 2. Site Aerial and Parcel Map Figure 3. USFWS National Wetlands Inventory Map Figure 4. NRCS Soils Map Figure 5. Historical Aerial (1957) Map Figure 6. Existing Conditions Overview Map Figure 7. Existing Conditions Viewports 1, 2, & 3 Figure 8. Existing Conditions Viewport 4 Figure 9. Existing Conditions Viewports 5 & 6 Note: all figures are located at the end of the report before the appendices. LIST OF TABLES Table 1. Summary of Wetlands on the Project Site. ........................................................ 5 Table 2. Critical Areas Impact Analysis ........................................................................ 13 APPENDICES Appendix A: Wetland Determination Data Forms, Talasaea Consultants, 2016 and 2017 Appendix B: Photodocument, Talasaea Consultants, 2017 Appendix C: Buffer Averaging Plan Sheets Sheet W1.0 Existing Conditions Plan Sheet W1.1 Wetland Exemption Exhibit Sheet W1.2 Proposed Site Plan, Impacts & Mitigation Overview Plan Sheet W2.0 Clearing, Grubbing, & Habitat Features Plan & Specifications Sheet W3.0 Planting Plan Sheet W3.1 Planting Plan Sheet W3.2 Plant Schedule, Notes & Details Sheet W4.0 Planting Specifications Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 1 CHAPTER 1. INTRODUCTION 1.1 Purpose of Report This report is the result of a critical areas study for the Federal Way Campus, LLC (FWC, LLC) property proposed for the development of Greenline Building A (referred to hereinafter as the “Project Site” or “Site”). The Site is located in Federal Way, Washington (Figure 1). The Project Site is a portion of two parcels (King County tax parcel numbers 6142600005 and 6142600200) (Figure 2). The Applicant is planning to develop an approximately 226,195 square foot building with limited office space and associated infrastructure. This report has been prepared to comply with the requirements of the 1994 Federal Way City Code (FWCC) Article XIV. Environmentally Sensitive Areas, Division 7. Regulated Wetlands, Sections 22-1356-1359, and the Concomitant Agreement. This report will provide and describe the following information: • General property description; • Methodology for critical areas investigation; • Results of critical areas background review and field investigation; • Existing site conditions; • Regulatory review; • Proposed Project; and • Assessment of Development Impacts. 1.2 Statement of Accuracy Stream and wetland characterizations and ratings were conducted by trained professionals at Talasaea Consultants, Inc., and adhered to the protocols, guidelines, and generally accepted industry standards available at the time the work was performed. The conclusions in this report are based on the results of analyses performed by Talasaea Consultants and represent our best professional judgment. To that extent and within the limitation of project scope and budget, we believe the information provided herein is accurate and true to the best of our knowledge. Talasaea does not warrant any assumptions or conclusions not expressly made in this report, or based on information or analyses other than what is included herein. 1.3 Qualifications Field investigations and evaluations were conducted by Talasaea staff including: Bill Shiels, Principal; Jennifer Marriott, PWS, Senior Ecologist; David R. Teesdale, PWS, Senior Wetland Ecologist; Richard Tveten, Senior Ecologist; and Kristen Numata, Ecologist. Bill Shiels has a Bachelor’s Degree in Biology from Central Washington University and a Master’s Degree in Biological Oceanography from the University of Alaska. He has over 40 years of experience in wetland delineations and mitigations. Jennifer Marriott has a Bachelor’s Degree and a Master’s Degree in Biology from University of Central Florida, and a second Master’s Degree in Soil and Environmental Science from the University of Florida. She has over 13 years of experience in wetland delineations and environmental permitting. David Teesdale has a Bachelor’s Degree in Biology from Grinnell College, Iowa, and a Master’s Degree in Ecology from Illinois Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 2 State University. He has 20 years of experience in wetland delineations and biological evaluations. Richard Tveten has a Bachelor of Science and Master of Science in Biology from Western Washington University with a focus on terrestrial ecology and fire ecology, respectively. Richard has worked for the public and private sectors for 20 years in wetlands, water quality, and forest management. Kristen Numata has a Bachelor’s Degree in Biology and Environmental Science from Santa Clara University. Buffer mitigation design was prepared by Ann Olsen, RLA. Ann has over 24 years of experience in designing critical area mitigation plans CHAPTER 2. GENERAL PROPERTY DESCRIPTION AND LAND USE 2.1 Project Site Location The Project Site is a combination of portions of two parcels (Parcel IDs 614250-0005 and 614260-0200) currently owned by the Applicant, FWC, LLC (Figure 2). The coordinates for the center of the Project Site are 47.29719, -122.29405. The Project Site is 32 acres in size. The remainder of the associated parcels will remain under FWC, LLC ownership and are not a part of this project. The Public Land Survey System location of the Project Site is Section 21, Township 21 North, Range 4 East, Willamette Meridian. 2.1.1 Project Site Description The topography of the Site is gently sloping downhill from the west to the east and north to south. The Site is bound to the north and east by Weyerhaeuser Way South, by Weyerhaeuser Road to the west, and undeveloped property owned by FWC, LLC to the south. The on-ramp to Highway 18 is located southeast of the Project Site. The Site is currently undeveloped except for existing service roads, a passive recreational trail system, and a maintained landscape materials yard that has been used for the entire Weyerhaeuser property over the past several decades. CHAPTER 3. METHODOLOGY The critical areas analysis of the Site involved a two-part effort. The first part consisted of a preliminary assessment of the Site and the immediate surrounding area using published environmental information. This information includes: 1) Wetland and soils information from resource agencies; 2) Critical Areas information from King County and the City of Federal Way; 3) Orthophotography and LIDAR imagery; and, 4) Relevant studies completed or ongoing in the vicinity of the Site. The second part consisted of site investigations where direct observations and measurements of existing environmental conditions were made. Observations included plant communities, soils, hydrology, and stream conditions. This information was used to help characterize the site and define the limits of critical areas onsite and offsite for regulatory purposes (see Section 3.2 – Field Investigation below). 3.1 Background Data Reviewed Background information from the following sources was reviewed prior to field investigations: Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 3 • US Fish and Wildlife Service (USFWS), Wetlands Online Mapper (National Wetlands Inventory) (U.S. Fish and Wildlife Service 2017) (www.wetlandsfws.er.usgs.gov/wtlnds/launch.html); • Natural Resources Conservation Service (NRCS), Web Soil Survey (NRCS 2017)(www.websoilsurvey.nrcs.usda.gov/app/); • NRCS, National Hydric Soils List by State (NRCS 2016) (www.soils.usda.gov/use/hydric/lists/state.html); • King County GIS Database (King County 2016); • Orthophotography from USDA’s National Agricultural Imagery Program (NAIP 2016), Earth Explorer (USGS), and Google Earth. • Washington Department of Fish and Wildlife (WDFW) Priority Habitat and Species (PHS) Mapper; • SalmonScape (WDFW) (http://wdfw.wa.gov/mapping/salmonscape); • StreamNet (The Pacific States Marine Fisheries Commission)(http://www.streamnet.org/data/interactive-maps-and-gis-data/) • USFWS listed species data; and • National Marine Fisheries Service (NMFS). 3.2 Field Investigation Talasaea Consultants originally evaluated the Project Site as part of a larger effort for FWC, LLC beginning in December 2015. Wetlands have been periodically evaluated for accuracy since their initial delineations in December 2015 through the present. Our wetland delineation utilized the routine approach described in the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountain, Valleys, and Coast Regions (U.S. Army Corps of Engineers 2010). Ordinary high water marks (OHWM) were established based on the DOE guidance document Determining the Ordinary High Water Mark for Shoreline Management Act Compliance in Washington State (DOE Publication #16-06-029, March 2010). Plant species were identified according to the taxonomy of Hitchcock and Cronquist (Hitchcock, et al. 1969). Taxonomic names were updated and plant wetland status was assigned according to North American Digital Flora: National Wetland Plant List, Version 2.4.0 (Lichvar, et al. 2012). Wetland classes were determined with the U.S. Fish and Wildlife Service’s system of wetland classification (Cowardin, et al. 1979). Vegetation was considered hydrophytic if greater than 50% of the dominant plant species had a wetland indicator status of facultative or wetter (i.e., facultative, facultative wetland, or obligate wetland). Wetland hydrology was determined based on the presence of hydrologic indicators listed in the Corps’ Regional Supplement. These indicators are separated into Primary Indicators and Secondary Indicators. To confirm the presence of wetland hydrology, one Primary Indicator or two Secondary Indicators must be demonstrated. Indicators of wetland hydrology may include, but are not necessarily limited to: drainage patterns, drift lines, sediment deposition, watermarks, stream gauge data and flood predictions, historical records, visual observation of saturated soils, and visual observation of inundation. Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 4 Soils on the site were considered hydric if one or more of the hydric soil indicators listed in the Corps Regional Supplement were present. Indicators include presence of organic soils, reduced, depleted, or gleyed soils, or redoximorphic features in association with reduced soils. An evaluation of patterns of vegetation, soil, and hydrology was made along the interface of wetland and upland. Wetland boundary points were then determined from this information and marked with wire flags or surveyors tape. Appendix A contains data forms prepared by Talasaea for representative locations in both upland and wetland locations. These data forms document the vegetation, soils, and hydrology information that aided in the wetland boundary determination. CHAPTER 4. RESULTS This section describes the results of our in-house research and field investigations. For the purpose of this report, the term “vicinity” describes an area within 300 feet of the Site. 4.1 Analysis of Existing Information The following sources provided information on site conditions based on data compiled from resource agencies and local government. 4.1.1 USGS Quadrangle Map The Project Site occurs on the Poverty Bay quadrangle. The quad map indicates North Lake occurs north of the Site with Weyerhaeuser Pond well west of the Site. No other wetland or stream features are indicated on this map. 4.1.2 National Wetland Inventory Map The National Wetland Inventory (NWI) maps no wetlands on or adjacent to the Project Site (Figure 3). 4.1.3 Natural Resources Conservation Service Map The NRCS maps one type of soil in the entirety of the Project Site, Alderwood gravelly sandy loam, 0 to 8 percent slopes (Figure 4). The National Technical Committee on Hydric Soils does not include Alderwood gravelly sandy loam as a hydric soil. 4.1.4 King County GIS Database King County does not map any critical areas on or adjacent to the Project Site. In the broad vicinity of the site, both North Lake and Weyerhaeuser Pond are mapped as wetland units. One wetland unit is mapped to the south of the Project Site, but is separated from the Project Site by Highway 18. 4.2 Analysis of Existing Conditions There are no significant habitat areas within the Project Site. The Project Site currently supports third-growth coniferous forests that are not unique to this area. The majority of the Project Site was developed as residential areas as depicted on the 1957 aerial image (Figure 5). Parcels and roads were laid out in a standard grid pattern. The now vacated rights-of-way have long since been removed or abandoned and the area has been allowed to revegetate naturally since the houses were removed sometime between 1969 and 1980, based on a review of historic aerial imagery. Figure 5 reflects Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 5 the locations of the currently delineated wetlands relative to the 1957 aerial imagery, which shows the presence of the old rights-of-way and structures present at that time. Much of this area is underlain by glacial till. This dense material frequently possesses inclusions consistent with redoximorphic features except they lack the diffuse boundaries characteristic of active wetland hydrology. This material is also very difficult to dig through for complete soil profiling. In addition, a number of non-native species of trees occur along the existing gravel roads. Talasaea Consultants performed an initial delineation of Project Site wetlands in January 2016. We subsequently re-delineated the wetlands in April of 2016 with delineations being modified for Wetlands EE and EB. Boundaries for Wetlands DU, DW, DX, and DZ were also adjusted after a re-evaluation to ensure their delineations were accurately reflected in the survey. Thirteen (13) wetlands were identified on or adjacent to the Site (Figures 6-9 and Sheet W1.0). One stream was located in the southeast corner of the Site, as well as an upland-excavated ditch that drains into Wetland DR. Table 1 outlines the physical characteristics of the wetlands, with descriptions following below. Photographs of all critical areas identified on-site, including their boundaries and typical adjacent uplands, are included within Appendix B. Table 1. Summary of Wetlands on the Project Site. Wetland ID Size (sf) Cowardin1 DP 300 PFO DQ 703 PSS DR 3,240 PSS DT 2,430 PSS DU 373 PSS DW 446 PFO DX 392 PFO DZ 59 PFO EB 1,601 PFO/PSS EC 821 PFO ED 3,234 PFO EE 1,881 PSS EF 1,115 PFO 1Based on Cowardin classifications: Palustrine Scrub-Shrub (PSS), Palustrine Forested (PFO). 4.2.1 Wetland DP Wetland DP is a 300 square-foot palustrine forested wetland located in the southeast corner of the site between a gravel pedestrian path and Highway 18 adjacent to the Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 6 Highway 18 right-of-way (ROW). This depressional wetland is dominated by red alder (Alnus rubra). Wetland DP is seasonally flooded, and has hydrology supported by precipitation and overland flow. Most of the wetland was ponded with 6 inches of water at the time of site investigations so thorough evaluations of soils were problematic. Soils were assumed hydric within the wetland due to the presence of wetland hydrology and hydrophytic vegetation. 4.2.2 Wetland DQ Wetland DQ is a 703 square-foot palustrine scrub-shrub wetland in the northeast corner of the property along Weyerhaeuser Way South. This depressional wetland is located adjacent to Weyerhaeuser Way South. Vegetation within the wetland is dominated by Pacific willow (Salix lasiandra). Soils within the wetland are a 10YR 4/2 with 10YR 5/6 concentrations. Wetland DQ is seasonally flooded, and has hydrology supported by precipitation and overland flow from adjacent uplands. 4.2.3 Wetland DR Wetland DR is a 3,240 square-foot palustrine scrub-shrub wetland located to the south of Wetland DQ along Weyerhaeuser Way South. This depressional wetland receives hydrology from overland flow as well as through an upland-excavated ditch that flows south into the wetland. This wetland also receives run-off from the gravel access road and the landscape debris management area through a maintained swale. Wetland DR discharges south through a small swale along Weyerhaeuser Way South towards Wetland EB. Vegetation within the wetland consists of red-osier dogwood (Cornus sericea) and salmonberry (Rubus spectabilis), though the wetland is generally sparsely vegetated. Most of the wetland was under at least 12 inches of water at the time of site investigations so thorough evaluations of the soils were problematic. Soils were assumed hydric within the wetland due to the presence of wetland hydrology and hydrophytic vegetation. 4.2.4 Wetland DT Wetland DT is a 2,430 square-foot palustrine scrub-shrub wetland located to the south of Wetlands EB along a maintained service road. This depressional wetland is located along the eastern edge of the Project Site. Vegetation within the wetland consists of vine maple (Acer circinatum), salmonberry, and reed canarygrass (Phalaris arundinacea). Most of the wetland was under at least 12 inches of water at the time of site investigations so thorough evaluations of the soils were problematic. Soils within the unit, where a soil pit could be dug, are a 10YR 2/2 and were assumed hydric within the wetland due to the presence of wetland hydrology and hydrophytic vegetation. Wetland DT is seasonally flooded, and is supported hydrologically by precipitation and overland flow. 4.2.5 Wetland DU Wetland DU is a 373 square-foot palustrine scrub-shrub wetland located in the southwestern section of the property adjacent to a maintained service road. This depressional wetland is dominated by salmonberry. Most of the wetland was under 6-8 inches of water at the time of site evaluations so thorough evaluations of the soils were Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 7 problematic. Soils were assumed hydric within the wetland due to the presence of wetland hydrology and hydrophytic vegetation. Wetland DU is seasonally flooded, and is supported by precipitation. 4.2.6 Wetland DW Wetland DW is a 446 square-foot wetland palustrine forested wetland located to the west of Wetland DU in the southwest corner of the Site. This depressional wetland is dominated by red alder and salmonberry. Wetland DW is seasonally flooded, and is supported hydrologically by precipitation and overland flow. Most of the wetland was under at least 6 inches of water at the time of site investigations so thorough evaluations of the soils were problematic. Soils were assumed hydric within the wetland due to the presence of wetland hydrology and hydrophytic vegetation. 4.2.7 Wetland DX Wetland DX is a 392 square-foot palustrine forested wetland located immediately to the west of Wetland DW. The two are separated by a small upland hummock and are not connected hydrologically, except for during large storm events. This depressional wetland is dominated by red alder and salmonberry. Soils within the wetland did not meet a hydric soil indicator, but this area was noted as a wetland due to its association with Wetland DZ. Wetland DX is seasonally flooded, and has hydrology supported by precipitation and overland flow. 4.2.8 Wetland DZ Wetland DZ is a 59 square-foot palustrine forested wetland located south of Wetland DX. This depressional wetland is dominated by salmonberry and common rush (Juncus effusus). Most of the wetland was under several inches of water at the time of site investigations so thorough evaluations of the soils were problematic. Soils were assumed hydric within the wetland due to the presence of wetland hydrology and hydrophytic vegetation. Wetland DZ is seasonally flooded, and is supported by precipitation and overland flow. 4.2.9 Wetland EB Wetland EB is a 1,601 square foot depressional wetland classified as a palustrine forested wetland. Typical vegetation consists of Scouler willow (Salix scouleriana), Pacific willow, salmonberry, slough sedge (Carex obnupta) and reed canarygrass. Soils in the wetland were a 10YR 3/2, and assumed hydric based on the presence of hydrophytic vegetation and wetland hydrology. Hydrology in the wetland was present as saturation to the surface, though standing water was present through much of December and January during the heavy rains. 4.2.10 Wetland EC Wetland EC is an 821 square-foot palustrine scrub-shrub wetland located within a depression. This wetland occurs immediately west of a gravel access road in the middle of the Site. Vegetation within the wetland is dominated by Douglas spirea (Spiraea douglasii). Soils in the wetland are a 10YR 2/2 and are assumed to be hydric based on the presence of hydrophytic vegetation and wetland hydrology. Hydrology for Wetland EC is fed by drainage from the service road as well as direct precipitation and overland flow from the surrounding upland hillslopes. Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 8 4.2.11 Wetland ED Wetland ED is a 3,234 square-foot palustrine forested wetland. This wetland occurs within the same general topographic depression as Wetland EC and EF. Vegetation within the wetland consists of red alder, western red cedar (Thuja plicata), black cottonwood (Populus balsamifera), salmonberry, vine maple, western skunk cabbage (Lysichiton americanus), lady fern (Athyrium filix-femina), and false lily-of-the-valley (Maianthemum dilatatum). Soils in the wetland are a 10YR 2/1 with hydrology provided by precipitation and overland flow from the surrounding uplands. 4.2.12 Wetland EE Wetland EE is a 1,881 square-foot palustrine scrub-shrub wetland that occurs in a clear depression in the landscape. A culvert occurs at the eastern most point of this wetland that provides an outlet to this depression to the east. The wetland is flanked on two sides by gravel access roads. Vegetation is predominantly Douglas spirea with significant amounts of open water. Most of the wetland was under at least 12 inches of water at the time of site investigations so thorough evaluations of the soils were problematic. Soils were assumed hydric within the wetland due to the presence of wetland hydrology and hydrophytic vegetation. 4.2.13 Wetland EF Wetland EF is a 1,115 square-foot palustrine forested wetland. This wetland occurs within the same general topographic depression as Wetland EC and ED. Vegetation within the wetland consists of red alder, salmonberry, western skunk cabbage, and lady fern. Soils in Wetland EF were a 10YR 2/1 in the upper 8 inches, and a 10YR 4/1 below 8 inches in the profile. Hydrology is provided by precipitation and overland flow from the surrounding uplands. 4.2.14 Stream EA Stream EA is located in the southeast corner of the Site and flows south under the access road and under Highway 18. The stream is intermittent and is supported hydrologically by precipitation and surface water flows from the surrounding uplands. Areas immediately surrounding the stream are dominated by red alder and Himalayan blackberry (Rubus armeniacus). 4.2.15 Non-regulated Ditch This feature was observed traversing through the forested uplands towards Wetland DR. This feature started in the woods at no particular point, but two (2) culverts discharge into the upper end of this feature before conveying the water south to Wetland DR. This ditch was excavated in uplands, as evidenced by the maturity of the adjacent trees, mostly Douglas fir with salal and sword fern in the understory. 4.3 Wildlife Surveys and Habitat Assessments The Project Site was evaluated for wildlife and habitats concurrently with delineation efforts and observations of additional wildlife were recorded during all field visits since December 2015. The general habitat on the Project Site is a blend of small depressional wetlands, third-growth Douglas fir forest with a patchy salal/sword fern understory, and a mixed deciduous forest with a primarily salmonberry understory. No unique habitats occur onsite. General wildlife observations during fieldwork included: Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 9 • Birds: American Robin, Pacific Wren, Canada Goose, Chickadee, Ruby- crowned Kinglet, Red-winged Blackbird, Pileated Woodpecker, Bufflehead, Mallard, American Widgeon, American Crow, American Coot, Pied-billed Grebe, Rufous Hummingbird; • Mammals: mountain beaver (burrows), rabbit, deer, coyote; • Amphibians: bullfrogs. Multiple site visits since the initial wetland delineations have added to the list of species identified as occurring on the Project Site, as well as expanding our timeframe over which we have evaluated this Site. No listed species occur on the Project Site. A Bald Eagle nest is mapped on the Washington Priority Habitat and Species database as occurring approximately 1,350 feet east of the Project Site, and is discussed below. One non-fish-bearing stream occurs within the Project Site. North Lake occurs approximately 400 feet north of the Project Site on the opposite side of Weyerhaeuser Way South. 4.3.1 Listed Species - Salmonids While no habitat occurs on or adjacent to the Project Site for salmonids, listed species evaluated for these effects include the listed salmon species (Chinook salmon, steelhead, bull trout) to address the potential for downstream water quality impacts. Salmonids have not been observed in any of the streams, North Lake, or Weyerhaeuser Pond within the greater FWC, LLC property. Neither SalmonScape nor StreamNet map any salmonid species as occurring within North Lake, though the lake is noted as being stocked by the Washington Department of Fish and Wildlife with rainbow trout. The outlet for North Lake is also not mapped with salmon-presence, neither modeled nor actually present. Mapping of salmonids stops south of the Federal Way Campus property, well south of Highway 18. The apparent hindrances restricting salmonid migration into this area appear to be several not-fish-accessible culverts downstream outside of the FWC, LLC property. There is also a long stretch of pipe (roughly 1,600 linear feet) from the Weyerhaeuser pond, under the former Weyerhaeuser headquarters building, to its outlet just north of Highway 18, that is likely problematic for fish passage. The potential for federally or state listed species occurring within either of the Sites is very low. There are no streams located on the Project Site within which salmonids could occur. No impacts within the ordinary high water mark for any stream or lake is proposed as part of this project. All stormwater will be treated prior to discharge and conveyance off-site. 4.3.2 Bald Eagles A Bald Eagle nest is mapped on the Washington Priority Habitat and Species database as occurring approximately 1,350 feet east of the Site. The location of this nest was field verified, though its use status was not. No eagles were observed in or near the nest at the time of survey through the winter of 2015 to summer 2017. The nest occurs on a large tree within a large wetland/upland complex located east of an office park, and is visible from the edge of the adjacent commercial office park. The nest occurs across Weyerhaeuser Way South from the Project Site, and on the opposite side of the office park from the Project Site. Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 10 Bald Eagles were removed from the federal endangered species list in 2007, and no longer are protected under the Endangered Species Act. Bald Eagles were then removed from the Washington State Species of Concern lists in 2016. However, Bald Eagles continue to be protected under the Bald and Golden Eagle Protection Act and the Migratory Bird Treaty Act. These Acts prohibit the “taking” of a bald eagle through direct or indirect actions that may disturb the birds enough to disrupt their breeding, foraging, or nesting behaviors. The existing office park and Weyerhaeuser Way South have been in place for many years, and occur between the Project Site and the mapped nest. Bald Eagles are unlikely to be disturbed by Project Site given the regular use of existing facilities around the existing nest. No Bald Eagle nests occur within the Project Site. No foraging habitat occurs within the Project Site – both sites are too densely vegetated. Eagles are most likely to forage in and around North Lake or Weyerhaeuser Pond, or potentially within the open field areas located in the broad area. Bald Eagles rarely hunt within densely wooded environments. It is possible eagles may use trees within the Site for roosting. However, given the number of large trees within the area, it is incredibly unlikely that the removal of the trees for this project will negatively affect the bald eagle. This project may affect but is not likely to adversely affect listed species. Lastly, coordination for federally listed species occurred through the US Army Corps of Engineers during the application process for NWP-2016-433, and the Project was determined to have no effect on listed species. CHAPTER 5. REGULATORY REVIEW 5.1 Federal and State Regulations Wetland impacts on the Project Site are subject to applicable State and Federal regulations. Wetland impacts are regulated on the Federal level by Sections 404 and 401 of the Clean Water Act. The US Army Corps of Engineers (Corps) is responsible for administering compliance with Section 404 via the issuance of Nationwide or Individual Permits for any fill or dredging activities within wetlands. Any project that is subject to Section 404 permitting is also subject to requirements of Section 401 of the Clean Water Act (CWA), administered by the Department of Ecology (DOE). Because direct wetland impacts are proposed on the Project Site, the project would be required to comply with all Section 404 and 401 permitting requirements prior to any construction-related activities that would affect “waters of the US.” The project was previously permitted by the Corps (NWP-2016-443, issued 31 October 2016), but with the current site plan changes, a permit revision will be requested. 5.2 City of Federal Way Permitting Approach The Weyerhaeuser Company entered into a pre-annexation zoning agreement with the City of Federal Way in 1994. This Concomitant Agreement transferred to the new property owners, FWC, LLC, upon their purchase of the property during the winter of 2015-2016. Through this purchase, the Concomitant Agreement and guidelines identified therein are applicable to the Greenline Building A project, including the specific language of the Concomitant Agreement with regard to wetlands, as well as the 1994 FWCC for Environmentally Sensitive Areas, Article XIV, Sections 22-1221 through Sections 22-1369, particularly Sections 22-1357, 22-1358, 22-1359. Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 11 While we have evaluated the Site using both the 1994 FWCC, as well as the current Federal Way City Code (FWCC), we will be using the 1994 FWCC to evaluate the potential impacts of this project to the onsite wetlands, so as to remain consistent with the existing Concomitant Agreement. This was confirmed by Brian Wilson (the former City of Federal Way Chief of Staff) via email to Jack McCullough (the Applicant’s land use attorney) on 6 June 2016. We feel that using the 1994 FWCC to evaluate critical area impacts still uses the best available science and will not provide lesser protections to those critical areas present compared to what is required at the Federal level. The Concomitant Agreement outlines exemptions from the 1994 FWCC, specifically exemptions from “the provisions of Section 22, Article XIV of the FWCC and requirements of this Agreement” including: Development affecting wetlands which are individually smaller than 2,500 square feet and/or cumulatively smaller than 10,000 square feet in size in any 20-acre section of this property (Page C-16 of the Concomitant Agreement, Section XII.H.3). The 20-acre section of the property associated with this application is clearly represented on Sheet W1.1 (Appendix C). The 13 wetlands associated with this application all fall within this 20-acre portion. The nine (9) wetlands proposed to be impacted are less than 10,000 square feet cumulatively; thus these wetlands are exempt from the regulations of the 1994 FWCC and the Concomitant Agreement, including justification of wetland impacts and the subsequent mitigation of those wetland impacts. While only seven (7) wetlands are anticipated to be directly filled as part of this development, two (2) additional wetlands were included within the impact assessment as being directly impacted, as they would be insufficiently buffered in the post- development condition. These two (2) wetlands are being accounted for as wetland impact, and will be mitigated accordingly through the Corps and DOE permitting. 5.2.1 Wetlands Our approach on this project was to delineate the wetlands during the growing season, and understanding that avoidance was not practicable for the project, we engaged the Corps to verify our delineation and make a jurisdictional determination prior to submitting to the City. We received a preliminary jurisdictional determination from the Corps on 21 July 2016 for the northern six (6) wetlands, acknowledging their agreement with our delineated wetland boundaries, and confirming their jurisdiction over those wetlands within the Project Limits at that time. We will revisit jurisdictional boundaries with the Corps during permitting for a revised Corps permit. All wetlands under the 1994 FWCC have 100-foot standard buffers (Article XIV, Division 7, Section 22-1357). Buffer width reduction of up to 50% is allowable through buffer averaging with a minimum buffer width of 50 feet, as outlined in the Concomitant Agreement (Section XII.G.1). 5.2.2 Streams Stream EA is classified as a non-fish-bearing (minor) stream within Federal Way, which requires a standard 50-foot buffer according to 1994 FWCC (Article XIV, Division 5, Section 22-1306). Buffer width reduction is allowable through buffer averaging with a minimum buffer width of 25 feet, as outlined in the Concomitant Agreement (Section Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 12 XII.F.1). This buffer is larger than what would be required under the current FWCC. This is an artificial feature that was constructed at some point after 2000. This stream shows poor substrate development and is comprised mostly of leaf litter. The slopes of the channel were constructed as this feature is located at the toe of the slope from the utility easement that traverses this portion of the Project Site. 5.2.3 Other Linear Features All other man-made depressional features would not require buffers as they are all non- jurisdictional features and are actively maintained. CHAPTER 6. PROPOSED PROJECT 6.1 Proposed Project FWC, LLC is proposing to develop a general commodity building on 32-acres of CP-01 zoned land (Sheet W1.2 in Appendix C). The proposed building will be approximately 226,195 sf with associated infrastructure and parking. A stormwater quality control and detention pond will be constructed through an easement on the parcel located to the south. FWC, LLC owns this parcel. Limited commercial vehicle ingress and egress access will be off Weyerhaeuser Way S. A 50-foot wide Managed Forest Buffer (MFB) along Weyerhaeuser Way S, expanded to 100-feet along Highway 18, will be maintained consistent with the arborist-prepared management plan, as required by the Concomitant Agreement with the City. 6.2 Stormwater Treatment A stormwater quality control and detention pond is proposed on the parcel to the south to address stormwater treatment and detention needs for the Project. Stormwater will be collected from the Site and conveyed to the stormwater facility through a drainage easement outside of the MFB. Treated stormwater will be conveyed east to connect to the same outfall where the area drainage previously discharged under Highway 18. The stormwater facilities will be designed to meet current DOE Water Quality Standards. CHAPTER 7. ASSESSMENT OF DEVELOPMENT IMPACTS The proposed site plan has been designed to minimize impacts to critical areas to the greatest extent practicable while meeting the criteria for development of a viable project and conforming to the City of Federal Way standards and zoning. In attempting to avoid wetland impacts on this site, several different configurations were evaluated to find the best fit for the project needs. Despite these efforts, some impacts to critical areas are unavoidable in order to achieve an economically viable project. 7.1 Wetland Impact Analysis 7.1.1 Wetland Impacts Construction of the project will impact (fill) 9,922 sf of wetlands (Wetlands DU, DW, DX, DZ, EB, EC, ED, EE, and EF) (Sheet W1.2 in Appendix C). Due to the proximity of Wetlands EC and EF to the construction limits, these wetlands are included as wetland fill because they will be insufficiently buffered in the post-development condition. The remaining wetlands will be retained in their current conditions. Table 2 below outlines the Project Site wetlands, their total size, and their proposed impact acreage. The Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 13 proposed wetland impacts are the minimum required in order to construct the proposed building. These wetland impacts are exempt from Federal Way regulations, consistent with Section XII.H.3 of the Concomitant Agreement. While no mitigation is required to offset wetland impacts through the City of Federal Way, mitigation for these impacts will be addressed through Corps and DOE permitting. Table 2. Critical Areas Impact Analysis Feature ID Wetland Size (sf) Direct Impacts (fill) Wetland DP 300 0 Wetland DQ 703 0 Wetland DR 3,240 0 Wetland DT 2,430 0 Wetland DU 373 373 Wetland DW 446 446 Wetland DX 392 392 Wetland DZ 59 59 Wetland EB 1,601 1,601 Wetland EC 821 821 Wetland ED 3,234 3,234 Wetland EE 1,881 1,881 Wetland EF 1,115 1,115 TOTAL 9,922 7.1.2 Wetland Buffers For permitting with the City of Federal Way, buffers will be applied consistent with the 1994 FWCC, which prescribes a standard 100-foot setback to all wetlands (Article XIV, Division 7, Section 22-1357). The 1994 FWCC uses the term “setback” rather than the currently accepted term “buffer”. This is different from building setbacks, which can be required in addition to standard wetland buffers. This buffer width will only be applied to wetlands remaining in the post-development condition. 7.1.3 Wetland Buffer Averaging Buffer averaging is allowed through the Concomitant Agreement as long as a minimum 50-foot buffer is retained (Section XII.G.1) as an exemption to the regulations of the 1994 FWCC. Buffer averaging is proposed for Wetlands DQ, DR, and DT to compensate for lost buffer due to site development encroachments. No modifications to the Wetland DP buffers are required. Buffers for Wetlands DQ, DR, and DT will be Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 14 reduced to less than the standard 100-foot, but no less than 50-feet, to accommodate the proposed development. Approximately 14,033 sf of wetland buffer area will reduced and 14,775 sf of wetland buffer area will be replaced, for a net gain of 742 sf. The reduced buffer areas will be replaced immediately adjacent to the existing buffers such that the total buffer areas in the post-development condition will be no less than the pre-development buffer areas. Supplemental plantings of native species will be added where necessary to ensure a densely planted native buffer outside of the MFB. The averaged buffer replacement area will be located outside of the MFB as required by the City and are equal to the reduced buffer in both composition and function. Temporary erosion and sediment control (TESC) measures, such as silt fencing at the clearing and grading limits, will be installed pursuant to the TESC plan prepared by the civil engineer, which will protect the buffers and wetlands from construction site runoff. 7.2 Stream Impact Analysis 7.2.1 Stream Impacts No impacts to Stream EA are proposed with this project. 7.2.2 Stream Buffer For permitting with the City of Federal Way, buffers will be applied consistent with the 1994 FWCC, which prescribes a standard 50-foot setback to all minor streams (Article XIV, Division 5, Section 22-1306). The 1994 FWCC uses the term “setback” rather than the currently accepted term “buffer.” This is different from building setbacks, which can be required in addition to standard wetland buffers. 7.2.3 Stream Buffer Averaging Buffer width reduction is allowable through buffer averaging with a minimum buffer width of 25 feet, as outlined in the Concomitant Agreement (Section XII.F.1). Buffer averaging is proposed for Stream EA to compensate for lost buffer due to site development encroachments. The Stream EA buffer will be reduced to less than the standard 50-foot, but no less than 25-feet, to accommodate the proposed development. Approximately 1,944 sf of buffer area will reduced and 2,359 sf of buffer area will be replaced, for a net gain of 415 sf. The reduced buffer will be replaced immediately adjacent to the existing buffers such that the total buffer area in the post-development condition will be no less than the pre-development buffer area. The averaged buffer replacement area will be located outside of the MFB as required by the City and are equal to the reduced buffer in both composition and function. Supplemental plantings of native species will be added where necessary to ensure a densely planted native buffer outside of the MFB. A small area of stream buffer will be fully restored after the removal of the existing gravel trail/road system that goes through this area. Temporary erosion and sediment control (TESC) measures, such as silt fencing at the clearing and grading limits, will be installed pursuant to the TESC plan prepared by the civil engineer, which will protect the buffers and wetlands from construction site runoff. 7.3 Critical Area Fencing A 2-board fence (or similar fence type) will be constructed along the outer edge of the critical area buffers adjacent to the remaining wetlands post construction (Sheet W1.2). Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 15 7.4 Critical Area Signs Following construction completion, critical area signs, consistent with City of Federal Way requirements, shall be installed at the buffer boundaries every 100 feet (Sheet W1.2). CHAPTER 8. SUMMARY The Greenline Building A Site is a 32-acre assemblage of two (2) parcels located in the City of Federal Way in King County, Washington. Existing gravel access roads, trails for passive recreation, and a maintained landscape materials yard are present onsite. Thirteen (13) wetlands, one (1) stream, and one (1) non-regulated ditch excavated in uplands were identified on the Project Site. All wetlands identified require a 100-foot setback per the 1994 FWCC. Stream EA requires a 50-foot setback as a minor stream per the 1994 FWCC. FWC, LLC is proposing to develop a general commodity building on 32-acres of CP-01 zoned land. The proposed building will be approximately 226,195 square feet with associated infrastructure and parking. A stormwater quality control and detention pond are located on the parcel to the south. Limited commercial vehicle ingress and egress access will be off Weyerhaeuser Way S near the interchange ramps for Highway 18. A 50-foot wide Managed Forest Buffer (MFB) along Weyerhaeuser Way S, expanded to 100-feet along Highway 18, will be maintained consistent with the arborist-prepared management plan, as required by the Concomitant Agreement with the City. Construction of the proposed development and stormwater pond would directly impact (fill) 9,922 sf of wetlands. Buffers will be averaged for Wetlands DQ, DT, and DR, as well as Stream EA, to accommodate site development, as allowed pursuant to the Concomitant Agreement. Buffer averaging will occur on the Project Site, such that the post-development buffer area will be equal to or greater than the pre-development buffer area. None of the buffer replacement area is located in the MFB, and all areas used are currently vegetated with native species consistent with the areas of buffer reduced. No mitigation is proposed to compensate for wetland impacts as the wetland impacts are exempt from City of Federal Way regulations. No performance monitoring is proposed for the buffer averaging as the replacement areas are equal to or greater than the areas reduced in both size and quality. Supplemental plantings in these post- development buffers will be managed long-term in conjunction with the other vegetation management required for the Site as part of either the Managed Forest Buffer or non- critical area landscaping. Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Page 16 CHAPTER 9. REFERENCES Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S. Fish and Wildlife Service, Department of the Interior. FWSOBS-70/31. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1, US Army Engineer Waterways Experiment Station, Vicksburg, Miss. Hitchcock, C.L., and A. Cronquist. 1973. Flora of the Pacific Northwest. University of Washington Press. 730 pp. Hruby, T. Washington State Wetland Rating System for Western Washington - Revised. Olympia, WA: Washington State Department of Ecology Publication #04- 06-025, 2008. Hruby, T. 2014. Washington State Wetland Rating System for Western Washington. 2014 Update. Washington State Department of Ecology Publication # 14-06-029. Lichvar, R.W. The National Wetland Plant List. ERDC/CRREL TR-12-11, Hanover, NH: U.S. Army Corps of Engineers, Cold Regions Research and Engineering Laboratory, 2012. Iowa State University. 1995. Hydric Soils of Washington State. U.S. Department of Agriculture, Natural Resources Conservation Service. December 5. Munsell Color. 1988. Munsell Soil Color Charts. Kollmorgen Instruments Corp., Baltimore, Maryland. Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Web Soil Survey. Available online at http://websoilsurvey.nrcs.usda.gov/. Accessed [April 2016]. U.S. Army Corps of Engineers. 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region. Wetland Regulatory Assistance Program. ERDC/EL TR-10-3 U.S. Fish and Wildlife Service. 1989. National Wetlands Inventory Map, Poverty Bay Quadrangle. Washington State Department of Ecology. March 1997. Washington State Wetland Identification and Delineation Manual. Washington State Department of Ecology. Water Quality Assessment and 303(d) List. 2016. www.ecy.wa.gov/programs/wq/303d (accessed 2017). Washington State Department of Fish and Wildlife [Map Online], Olympia (WA): SalmonScape [February 24, 2017]. URL: <http//wdfw.wa.gov/mapping/salmonscape/index.html> Washington State Department of Fish and Wildlife. 2012. Priority Habitats and Species Database [online], Olympia, WA. [accessed February 2017]. <www.wdfw.wa.gov/mapping/phs/> Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) FIGURES FIGURES Figure 1. Vicinity Map and Driving Directions Figure 2. Site Aerial and Parcel Map Figure 3. USFWS National Wetlands Inventory Map Figure 4. NRCS Soils Map Figure 5. Historical Aerial (1957) Map Figure 6. Existing Conditions Overview Map Figure 7. Existing Conditions Viewports 1, 2, & 3 Figure 8. Existing Conditions Viewport 4 Figure 9. Existing Conditions Viewports 5 & 6 Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Appendix A APPENDIX A WETLAND DETERMINATION DATA FORMS, TALASAEA CONSULTANTS, 2016 AND 2017 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: Greenline Building A City/County: King Sampling Date:2/22/2017 Applicant/Owner: Federal Way Campus LLC State: WA Sampling Point: DP UPL1 Investigator(s): KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): terrace Local relief (concave, convex, none): Concave Slope (%): 5-9 Subregion (LRR): A Lat: 47.294491 Long: -122.293744 Datum: NAD 83 Soil Map Unit Name: Alderwood gravelly sandy loam 0-8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation N, Soil N, or Hydrology N significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation N, Soil N, or Hydrology N 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: Test pit between wetland and access road VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30 ft) % Cover Species? Status 1. Alnus rubra 30 Yes FAC 2. 3. 4. 30 = Total Cover Sapling/Shrub Stratum (Plot size: 15 ft) 1. Gaultheria shallon 10 Yes FACU 2. Rubus armeniacus 5 Yes FAC 3. 4. 5. 15 = Total Cover Herb Stratum (Plot size: 5 ft) 1. Polystichum munitum 15 Yes FACU 2. 3. 4. 5. 6. 7. 8. 15 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. none 2. 0 = Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 2 (A) Total Number of Dominant Species Across All Strata: 4 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 50 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species 35 x 3 = 105 FACU species 25 x 4 = 100 UPL species x 5 = Column Totals: 60 (A) 205 (B) Prevalence Index = B/A = 3.4 Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DP UPL1 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 0-6 10 YR 3/2 100 Presumed fill from adjacent access road 6+ impermeable layer rock 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: road Depth (inches): 6 Hydric Soil Present? Yes No Remarks: Presumed fill from adjacent access road 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: 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: Greenline Building A City/County: King Sampling Date:2/22/2017 Applicant/Owner: Federal Way Campus LLC State: WA Sampling Point: DP WET1 Investigator(s): KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): hillslope Local relief (concave, convex, none): Concave Slope (%): 5-9 Subregion (LRR): A Lat: 47.294461 Long: -122.293726 Datum: NAD 83 Soil Map Unit Name: Alderwood gravelly sandy loam 0-8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation N, Soil N, or Hydrology N significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation N, Soil N, or Hydrology N 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: Test pit located in center of wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30 ft) % Cover Species? Status 1. Alnus rubra 45 Yes FAC 2. 3. 4. 45 = Total Cover Sapling/Shrub Stratum (Plot size: 15 ft) 1. Alnus rubra 15 Yes FAC 2. 3. 4. 5. 15 = Total Cover Herb Stratum (Plot size: 5 ft) 1. Juncus effusus 5 Yes FACW 2. 3. 4. 5. 6. 7. 8. 5 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. none 2. 0 = Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust 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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DP WET1 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 Sandy gravelly loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: Ponded water made it difficult to dig soil sample. Soils assumed hydric based on strong hydrophytic vegetation and hydrology indicators. 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): 6 Water Table Present? Yes No Depth (inches): 0 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: DQ-UPL1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): None Slope (%): 3-5 Subregion (LRR): A Lat: 47.297931 Long: -122.292681 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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 point just uphill from wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. Pseudotsuga menziesii 75 Y FACU 2. 3. 4. 75 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Acer macrophyllum 50 Y FACU 2. 3. 4. 5. 50 = Total Cover Herb Stratum (Plot size: 5ft) 1. Hedera helix 80 Y FACU 2. 3. 4. 5. 6. 7. 8. 80 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 20 % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 0 (A) Total Number of Dominant Species Across All Strata: 3 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 0 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DQ-UPL1 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 3/2 100 Loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Rock Depth (inches): 4 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: DQ-WET1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Depression Local relief (concave, convex, none): Concave Slope (%): 0-2 Subregion (LRR): A Lat: 47.297965 Long: -122.292476 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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 point located in east corner of wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. 2. 3. 4. 0 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Salix lasiandra 85 Y FACW 2. Sabucus racemosa 5 N FACU 3. 4. 5. 90 = Total Cover Herb Stratum (Plot size: 5ft) 1. 2. 3. 4. 5. 6. 7. 8. 0 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. 2. 0 = Total Cover % Bare Ground in Herb Stratum 70 % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 1 (A) Total Number of Dominant Species Across All Strata: 1 (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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DQ-WET1 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 0-14 10YR 4/2 95 10YR 5/6 5 C M Loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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): 7 (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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: DR-UPL1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): Convex Slope (%): 5 Subregion (LRR): A Lat: 47.297274 Long: -122.292583 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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 point located to the north of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. Populus balsamifera 30 Y FAC 2. Acer macrophyllum 20 Y FACU 3. Alnus rubra 15 Y FAC 4. Pseudotsuga menziesii 5 N FACU 70 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Oemleria cerasiformis 20 Y FACU 2. 3. 4. 5. 20 = Total Cover Herb Stratum (Plot size: 5ft) 1. Rubus laciniatus 20 Y FACU 2. Polystichum munitum 5 N FACU 3. Acer macrophyllum 5 N FACU 4. Rumex crispus 2 N FAC 5. 6. 7. 8. 32 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 15 % Cover of Biotic Crust 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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DR-UPL1 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 3/2 100 Loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: DR-WET1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Depression Local relief (concave, convex, none): Concave Slope (%): 0-2 Subregion (LRR): A Lat: 47.297208 Long: -122.292558 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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 point in the northeast corner of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. None 2. 3. 4. 0 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Cornus alba 5 Y FACW 2. Rubus spectabilis 2 Y FAC 3. 4. 5. 7 = Total Cover Herb Stratum (Plot size: 5ft) 1. None 2. 3. 4. 5. 6. 7. 8. 0 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 80 % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 2 (A) Total Number of Dominant Species Across All Strata: 2 (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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes No Remarks: Almost no vegetation within the wetland. US Army Corps of Engineers Western Mountains, Valleys, and Coast– Version 2.0 SOIL Sampling Point: DR-WET1 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: Histosol (A1) Sandy Redox (S5) 2 cm Muck (A10) Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2) Black Histic (A3) Loamy Mucky Mineral (F1 (except MLRA 1)) 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: Soils are assumed to be hydric given the conditions (under at least one foot of water). A proper sample was not able to be obtained. 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): 12+ 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: 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: DT-UPL1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): Convex Slope (%): 5-15 Subregion (LRR): A Lat: 47.295851 Long: -122.292911 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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 point west and uphill of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. Pseudotsuga menziesii 20 Y FACU 2. Fraxinus latifolia 35 Y FACW 3. 4. 55 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Rubus spectabilis 5 Y FAC 2. 3. 4. 5. 5 = Total Cover Herb Stratum (Plot size: 5ft) 1. Rubus laciniatus 10 Y FACU 2. Oemleria cerasiformis 1 N FACU 3. 4. 5. 6. 7. 8. 11 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. Rubus armeniacus 30 Y FACU 2. 30 = Total Cover % Bare Ground in Herb Stratum 30 % Cover of Biotic Crust 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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DT-UPL1 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 2/2 Loam 10+ Mechanical refusal 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: Large rocks located at 10 inches. Assumed to not be hydric based on lack of wetland hydrology and hydrophytic vegetation. 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: DT-WET1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Depression Local relief (concave, convex, none): Concave Slope (%): 0-2 Subregion (LRR): A Lat: 47.295845 Long: -122.292824 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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 point in the middle of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. None 2. 3. 4. 0 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Acer circinatum 20 Y FAC 2. Rubus spectabilis 15 Y FAC 3. 4. 5. 35 = Total Cover Herb Stratum (Plot size: 5ft) 1. Phalaris arundinacea 15 Y FACW 2. 3. 4. 5. 6. 7. 8. 15 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 40 % Cover of Biotic Crust 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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DT-WET1 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 2/2 100 Loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: Hydric soil is assumed based on hydrology and vegetation. 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): 4 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: Greenline Building A City/County: King Sampling Date:2/22/2017 Applicant/Owner: Federal Way Campus LLC State: WA Sampling Point: DU UPL1 Investigator(s): KN Section, Township, Range: S21 T21 R4E Landform (hillslope, terrace, etc.): hillslope Local relief (concave, convex, none): Concave Slope (%): 0-3 Subregion (LRR): A Lat: 47.294145 Long: -122.295521 Datum: NAD 83 Soil Map Unit Name: Alderwood gravelly sandy loam 0-8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation N, Soil N, or Hydrology N significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation N, Soil N, or Hydrology N 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: west of wetland, mountain beaver holes adjacent to test pit VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30 ft) % Cover Species? Status 1. Pseudotsuga menziesii 40 Yes FACU 2. 3. 4. = Total Cover Sapling/Shrub Stratum (Plot size: 15 ft) 1. Gaultheria shallon 60 Yes FACU 2. Rubus spectablis 20 Yes FAC 3. 4. 5. 80 = Total Cover Herb Stratum (Plot size: 5 ft) 1. Polystichum munitum 20 Yes FACU 2. 3. 4. 5. 6. 7. 8. 20 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. none 2. 0 = Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 1 (A) Total Number of Dominant Species Across All Strata: 4 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 25 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DU UPL1 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 10 YR 3/2 100 Silt loam gravelly with small rocks 8-18 10 YR 4/2 100 Silt loam gravelly with medium rocks 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: 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: Greenline Building A City/County: King Sampling Date:2/22/2017 Applicant/Owner: Federal Way Campus LLC State: WA Sampling Point: DU WET1 Investigator(s): KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): depression Local relief (concave, convex, none): concave Slope (%): 5-9 Subregion (LRR): A Lat: 47.294176 Long: -122.295435 Datum: NAD 83 Soil Map Unit Name: Alderwood gravelly sandy loam 0-8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation N, Soil N, or Hydrology N significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation N, Soil N, or Hydrology N 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: Test pit located in western section of wetland VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30 ft) % Cover Species? Status 1. none 2. 3. 4. 0 = Total Cover Sapling/Shrub Stratum (Plot size: 15 ft) 1. Rubus spectabilis 40 Yes FAC 2. 3. 4. 5. 40 = Total Cover Herb Stratum (Plot size: 5 ft) 1. none 2. 3. 4. 5. 6. 7. 8. 0 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. none 2. 0 = Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 1 (A) Total Number of Dominant Species Across All Strata: 1 (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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DU WET1 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 0-7 10 YR 2/2 100 loam very gravelly 7-20 10 YR 3/1 100 clay loam with gravel 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: lots of small rocks from 7-20 in. Soils assumed hydric based on presence of hydrophytic vegetation and hydrologic indicators. 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): 6 Water Table Present? Yes No Depth (inches): 0 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: Greenline Building A City/County: King Sampling Date:2/22/2017 Applicant/Owner: Federal Way Campus LLC State: WA Sampling Point: DW UPL1 Investigator(s): KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): depression Local relief (concave, convex, none): Concave Slope (%): 5-10 Subregion (LRR): A Lat: 47.294144 Long: -122.29586 Datum: NAD 83 Soil Map Unit Name: Alderwood gravelly sandy loam 0-8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation N, Soil N, or Hydrology N significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation N, Soil N, or Hydrology N 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: TP located North of wetland VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30) % Cover Species? Status 1. Corylus cornuta 80 Yes FACU 2. Alnus rubra 10 No FAC 3. 4. 90 = Total Cover Sapling/Shrub Stratum (Plot size: 15) 1. Gaultheria shallon 80 Yes FACU 2. Rubus spectabilis 5 No FAC 3. 4. 5. 85 = Total Cover Herb Stratum (Plot size: 5) 1. None 2. 3. 4. 5. 6. 7. 8. 0 = Total Cover Woody Vine Stratum (Plot size: 15) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 0 (A) Total Number of Dominant Species Across All Strata: 2 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 0 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DW UPL1 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 10 YR 4/2 100 SiL Gravelly with lots of rocks 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: 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: Greenline Building A City/County: King Sampling Date:2/22/2017 Applicant/Owner: Federal Way Campus LLC State: WA Sampling Point: DW WET1 Investigator(s): KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): concave Slope (%): 1-3 Subregion (LRR): A Lat: 47.294155 Long: -122.295847 Datum: NAD 83 Soil Map Unit Name: Alderwood gravelly sandy loam 0-8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation N, Soil N, or Hydrology N significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation N, Soil N, or Hydrology N 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: test plot located in the north section VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30 ft) % Cover Species? Status 1. Alnus rubra 40 Yes FAC 2. 3. 4. 40 = Total Cover Sapling/Shrub Stratum (Plot size: 15 ft) 1. Rubus spectabilis 35 Yes FAC 2. 3. 4. 5. 35 = Total Cover Herb Stratum (Plot size: 5ft) 1. none 2. 3. 4. 5. 6. 7. 8. 0 = Total Cover Woody Vine Stratum (Plot size: 15ft ) 1. none 2. 0 = Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 2 (A) Total Number of Dominant Species Across All Strata: 2 (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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DW -WET1 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: Histosol (A1) Sandy Redox (S5) 2 cm Muck (A10) Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2) Black Histic (A3) Loamy Mucky Mineral (F1 (except MLRA 1)) 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: Ponded water made it difficult to obtain soil sample. Soils assumed to be hydric based on strong hydrophytic vegetation and hydrology indicators 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): 6-10 Water Table Present? Yes No Depth (inches): 0 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: Greenline Building A City/County: King Sampling Date:2/22/2017 Applicant/Owner: Federal Way Campus LLC State: WA Sampling Point: DX UPL1 Investigator(s): KN Section, Township, Range: S21 T21 R4E Landform (hillslope, terrace, etc.): hillslope Local relief (concave, convex, none): Concave Slope (%): 5-10 Subregion (LRR): A Lat: 47.293977 Long: -122.296010 Datum: NAD 83 Soil Map Unit Name: Alderwood gravelly sandy loam 0-8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation N, Soil N, or Hydrology N significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation N, Soil N, or Hydrology N 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: Wetlands DX and DZ share an upland point. Located to the south of both wetlands. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30 ft) % Cover Species? Status 1. Alnus rubra 35 Yes FAC 2. Thuja plicata 50 Yes FAC 3. 4. 85 = Total Cover Sapling/Shrub Stratum (Plot size: 15 ft) 1. Gaultheria shallon 60 Yes FACU 2. 3. 4. 5. 60 = Total Cover Herb Stratum (Plot size: 5 ft) 1. none 2. 3. 4. 5. 6. 7. 8. 0 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. none 2. 0 = Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 2 (A) Total Number of Dominant Species Across All Strata: 3 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 66.6 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species 85 x 3 = 255 FACU species 60 x 4 = 240 UPL species x 5 = Column Totals: 145 (A) 495 (B) Prevalence Index = B/A = 3.4 Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DX UPL1 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 10 YR 3/2 100 Loam Gravelly 10+ Rock (impermeable layer) 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Rock Depth (inches): 10+ 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: 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: Greenline Building A City/County: King Sampling Date:2/22/2017 Applicant/Owner: Federal Way Campus LLC State: WA Sampling Point: DX WET1 Investigator(s): KN Section, Township, Range: S21 T21 R4E Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): Concave Slope (%): 1-3 Subregion (LRR): A Lat: 47.294023 Long: -122.295987 Datum: NAD 83 Soil Map Unit Name: Alderwood gravelly sandy loam 0-8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation N, Soil N, or Hydrology N significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation N, Soil N, or Hydrology N 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: TP along eastern edge of wetland. Test pit considered wetland despite lack of a hydric soil based on landscape position and relationship to adjacent wetlands. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30 ft) % Cover Species? Status 1. Alnus rubra 80 Yes FAC 2. 3. 4. 80 = Total Cover Sapling/Shrub Stratum (Plot size: 15 ft) 1. Rubus spectablis 40 Yes FAC 2. 3. 4. 5. 40 = Total Cover Herb Stratum (Plot size: 5 ft) 1. None 2. 3. 4. 5. 6. 7. 8. 0 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 2 (A) Total Number of Dominant Species Across All Strata: 2 (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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DX WET1 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 0-6 10 YR 4/2 100 Loam Very Gravelly 6-18 10 YR 3/3 58 5 YR 5/8 2 C M Clay Loam 7.5 YR 4/4 40 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: Soils do not meet an indicator. 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): 6-8 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: 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: Greenline Building A City/County: King Sampling Date:2/22/2017 Applicant/Owner: Federal Way Campus LLC State: WA Sampling Point: DZ UPL1 Investigator(s): KN Section, Township, Range: S21 T21 R4E Landform (hillslope, terrace, etc.): hillslope Local relief (concave, convex, none): Concave Slope (%): 5-10 Subregion (LRR): A Lat: 47.293977 Long: -122.296010 Datum: NAD 83 Soil Map Unit Name: Alderwood gravelly sandy loam 0-8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation N, Soil N, or Hydrology N significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation N, Soil N, or Hydrology N 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: Wetlands DX and DZ share an upland point. Located to the south of both wetlands. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30 ft) % Cover Species? Status 1. Alnus rubra 35 Yes FAC 2. Thuja plicata 50 Yes FAC 3. 4. 85 = Total Cover Sapling/Shrub Stratum (Plot size: 15 ft) 1. Gaultheria shallon 60 Yes FACU 2. 3. 4. 5. 60 = Total Cover Herb Stratum (Plot size: 5 ft) 1. none 2. 3. 4. 5. 6. 7. 8. 0 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. none 2. 0 = Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 2 (A) Total Number of Dominant Species Across All Strata: 3 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 66.6 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species 85 x 3 = 255 FACU species 60 x 4 = 240 UPL species x 5 = Column Totals: 145 (A) 495 (B) Prevalence Index = B/A = 3.4 Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DZ UPL1 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 10 YR 3/2 100 Loam Gravelly 10+ Rock (impermeable layer) 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Rock Depth (inches): 10+ 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: 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: Greenline Building A City/County: King Sampling Date:2/22/2017 Applicant/Owner: Federal Way Campus LLC State: WA Sampling Point: DZ WET1 Investigator(s): KN Section, Township, Range: S21 T21 R4E Landform (hillslope, terrace, etc.): Depression Local relief (concave, convex, none): Concave Slope (%): 1-3 Subregion (LRR): A Lat: 47.293999 Long: -122.296044 Datum: NAD 83 Soil Map Unit Name: Alderwood gravelly sandy loam 0-8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation N, Soil N, or Hydrology N significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation N, Soil N, or Hydrology N 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: test plot located in center of wetland VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30 ft) % Cover Species? Status 1. Alnus rubra 70 Yes FAC 2. 3. 4. 70 = Total Cover Sapling/Shrub Stratum (Plot size: 15 ft) 1. Rubus spectabilis 35 Yes FAC 2. 3. 4. 5. 35 = Total Cover Herb Stratum (Plot size: 5 ft) 1. Juncus effusus 45 Yes FACW 2. Carex obnupta 5 No OBL 3. 4. 5. 6. 7. 8. 50 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. none 2. 0 = Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust 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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: DZ WET1 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks 1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: Histosol (A1) Sandy Redox (S5) 2 cm Muck (A10) Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2) Black Histic (A3) Loamy Mucky Mineral (F1 (except MLRA 1)) 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: Soil sample could not be obtained due to standing water. Assumed hydric based on strong hydrophytic plants and hydrology indicators 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): 2 Water Table Present? Yes No Depth (inches): 0 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: EB-UPL1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): Concave Slope (%): 2-5 Subregion (LRR): A Lat: 47.296563 Long: -122.292623 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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: The sample point was located to the north of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. Populus balsamifera 30 Y FAC 2. Pseudotsuga menziesii 25 Y FACU 3. Alnus rubra 10 N FAC 4. 65 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Oemleria cerasiformis 15 Y FACU 2. Rubus parviflorus 5 N FACU 3. Rubus spectabilis 5 N FAC 4. Gaultheria shallon 2 N FACU 5. 27 = Total Cover Herb Stratum (Plot size: 5ft) 1. Rubus laciniatus 10 Y FACU 2. Polystichum munitum 2 N FACU 3. 4. 5. 6. 7. 8. 12 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 40 % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 1 (A) Total Number of Dominant Species Across All Strata: 4 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 25 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: EB-UPL1 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 3/2 100 Loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: EB-WET1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Depression Local relief (concave, convex, none): Concave Slope (%): 0-2 Subregion (LRR): A Lat: 47.296488 Long: -122.292608 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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: The sample point was located in the eastern section of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. Salix scouleriana 30 Y FAC 2. Salix lasiandra 20 Y FACW 3. 4. 50 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Salix lasiandra 5 Y FACW 2. Rubus spectabilis 10 Y FAC 3. 4. 5. 15 = Total Cover Herb Stratum (Plot size: 5ft) 1. Carex obnupta 45 Y OBL 2. Phalaris arundinacea 15 Y FACW 3. 4. 5. 6. 7. 8. 60 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 20 % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 6 (A) Total Number of Dominant Species Across All Strata: 6 (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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: EB-WET1 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 3/2 100 Loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: No hydric soil indicators present, but assumed hydric based on vegetation and hydrology. 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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): 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: EC-UPL1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): Convex Slope (%): 5 Subregion (LRR): A Lat: 47.295898 Long: -122.293734 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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 is located to the north of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. Populus balsamifera 15 Y FAC 2. Alnus rubra 20 Y FAC 3. 4. 35 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Rubus spectabilis 40 Y FAC 2. Sambucus racemosa 5 N FACU 3. 4. 5. 45 = Total Cover Herb Stratum (Plot size: 5ft) 1. Ribes sanguineum 30 Y FACU 2. Urtica dioica 20 Y FAC 3. Dicentra formosa 10 N FACU 4. Polystichum munitum 2 N FACU 5. 6. 7. 8. 62 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 10 % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 4 (A) Total Number of Dominant Species Across All Strata: 5 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 80 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species 95 x 3 = 285 FACU species 47 x 4 = 188 UPL species x 5 = Column Totals: 142 (A) 473 (B) Prevalence Index = B/A = 3.3 Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes No Remarks: Prevalence Index conducted despite lack of wetland hydrology or hydric soils to show prevalence of FACU plants US Army Corps of Engineers Western Mountains, Valleys, and Coast– Version 2.0 SOIL Sampling Point: EC-UPL1 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 3/2 100 Loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: No hydric soil indicators met. 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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 evidence of hydrology present. 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: EC-WET1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Depression Local relief (concave, convex, none): Concave Slope (%): 0-2 Subregion (LRR): A Lat: 47.295835 Long: -122.293703 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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 point is located in the north section of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. None 2. 3. 4. 0 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Spiraea douglasii 60 Y FACW 2. 3. 4. 5. 60 = Total Cover Herb Stratum (Plot size: 5ft) 1. Ribes sanguineum 25 Y FACU 2. 3. 4. 5. 6. 7. 8. 25 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 40 % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 1 (A) Total Number of Dominant Species Across All Strata: 2 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 50 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species 60 x 2 = 120 FAC species x 3 = FACU species 25 x 4 = 100 UPL species x 5 = Column Totals: 85 (A) 220 (B) Prevalence Index = B/A = 2.58 Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: EC-WET1 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 2/2 100 Loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: Hydric soil is assumed based on vegetation and hydrology. 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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): 2 (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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: ED-UPL1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): Convex Slope (%): 5 Subregion (LRR): A Lat: 47.296307 Long: -122.293706 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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 point was collected to the south of the wetland boundary. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. Alnus rubra 60 Y FAC 2. 3. 4. 0 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Acer circinatum 40 Y FAC 2. 3. 4. 5. 40 = Total Cover Herb Stratum (Plot size: 5ft) 1. Maianthemum canadense 20 Y FACU 2. Ribes sanguineum 15 Y FACU 3. Polystichum munitum 5 N FACU 4. 5. 6. 7. 8. 37 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 35 % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 2 (A) Total Number of Dominant Species Across All Strata: 4 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 50 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: ED-UPL1 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 3/2 100 Loam 4-15 10YR 3/3 100 Loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: ED-WET1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Depression Local relief (concave, convex, none): Concave Slope (%): 0-2 Subregion (LRR): A Lat: 47.296486 Long: -122.293828 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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: Wetland data point was collected in the center of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. Alnus rubra 30 Y FAC 2. Thuja plicata 15 Y FAC 3. Populus balsamifera 10 N FAC 4. 55 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Rubus spectabilis 50 Y FAC 2. Acer circinatum 20 Y FAC 3. 4. 5. 70 = Total Cover Herb Stratum (Plot size: 5ft) 1. Lysichiton americanus 12 Y OBL 2. Athyrium americanum 10 Y FAC 3. Ribes sanguineum 8 Y FACU 4. Maianthemum canadense 5 N FACU 5. 6. 7. 8. 35 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 25 % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 6 (A) Total Number of Dominant Species Across All Strata: 7 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 86 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: ED-WET1 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 0-20 10YR 2/1 100 Loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: Hydric soil was assumed hydric as lower horizon was observed to preclude A11 or A12 as possible indicators. This is consistent with the presence of hydrophytic vegetation and wetland hydrology. 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): 1 Water Table Present? Yes No Depth (inches): 3 Saturation Present? Yes No Depth (inches): 3 (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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: EE-UPL1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): Convex Slope (%): 2-5 Subregion (LRR): A Lat: 47.297998 Long: -122.293617 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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 point was collected to the north of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30 ft) % Cover Species? Status 1. Acer macrophyllum 40 Y FACU 2. Acer circinatum 25 Y FAC 3. Pseudotsuga menziesii 20 Y FACU 4. Alnus rubra 15 N FAC 100 = Total Cover Sapling/Shrub Stratum (Plot size: 15 ft) 1. Symphoricarpos albus 15 Y FACU 2. Rubus spectabilis 5 Y FAC 3. 4. 5. 20 = Total Cover Herb Stratum (Plot size: 5 ft) 1. Dicentra formosa 30 Y FACU 2. 3. 4. 5. 6. 7. 8. 30 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. Rubus armeniacus 5 Y FACU 2. 5 = Total Cover % Bare Ground in Herb Stratum 20 % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 2 (A) Total Number of Dominant Species Across All Strata: 7 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 28.5 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: EE-UPL1 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 0-5 10YR 3/2 100 Loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: EE-WET1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Depression Local relief (concave, convex, none): Concave Slope (%): 0-5 Subregion (LRR): A Lat: 47.297912 Long: -122.293592 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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: Data point was collected in the northeast section of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30 ft) % Cover Species? Status 1. None 2. 3. 4. 0 = Total Cover Sapling/Shrub Stratum (Plot size: 15 ft) 1. Spiraea douglasii 35 Y FACW 2. Rubus armeniacus 2 N FACU 3. 4. 5. 37 = Total Cover Herb Stratum (Plot size: 5 ft) 1. None 2. 3. 4. 5. 6. 7. 8. 0 = Total Cover Woody Vine Stratum (Plot size: 15 ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 45 % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 1 (A) Total Number of Dominant Species Across All Strata: 1 (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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: EE-WET1 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 0-3 Duff Layer 3-8 10YR 5/2 Under 12in water 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: Soil is assumed hydric given the sampling conditions (under 12in of water). 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): 12 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: EF-UPL1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): Convex Slope (%): 5 Subregion (LRR): A Lat: 47.296307 Long: -122.293706 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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: Upland point was collected to the northeast of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. Alnus rubra 60 Y FAC 2. 3. 4. 60 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Acer circinatum 40 Y FAC 2. 3. 4. 5. 40 = Total Cover Herb Stratum (Plot size: 5ft) 1. Maianthemum canadense 20 Y FACU 2. Ribes sanguineum 15 Y FACU 3. Polystichum munitum 5 N FACU 4. 5. 6. 7. 8. 37 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 30 % Cover of Biotic Crust Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 2 (A) Total Number of Dominant Species Across All Strata: 4 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 50 (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species 100 x 3 = 300 FACU species 37 x 4 = 148 UPL species x 5 = Column Totals: 137 (A) 448 (B) Prevalence Index = B/A = 3.27 Hydrophytic Vegetation Indicators: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) Problematic Hydrophytic Vegetation1 (Explain) 1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes No Remarks: Prevalence Index conducted despite lack of hydrology and soils to demonstrate prevalence of FACU species. US Army Corps of Engineers Western Mountains, Valleys, and Coast– Version 2.0 SOIL Sampling Point: EF-UPL1 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 3/2 100 Loam 4-15 10YR 3/3 100 Loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: No redox features identified in soil profile. 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: 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: Greenline Building A City/County: Federal Way/King Sampling Date:4/8/16 Applicant/Owner: Federal Way Campus, LLC State: WA Sampling Point: EF-WET1 Investigator(s): JMM/KN Section, Township, Range: S21 T21N R4E Landform (hillslope, terrace, etc.): Depression Local relief (concave, convex, none): Concave Slope (%): 0-2 Subregion (LRR): A Lat: 47.296290 Long: -122.293867 Datum: NAD83 Soil Map Unit Name: Alderwood gravelly sandy loam, 0 to 8 percent slopes NWI classification: None Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) 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 point was collected in the center of the wetland. VEGETATION – Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30ft) % Cover Species? Status 1. Alnus rubra 60 Y FAC 2. 3. 4. 60 = Total Cover Sapling/Shrub Stratum (Plot size: 15ft) 1. Rubus spectabilis 70 Y FAC 2. 3. 4. 5. 70 = Total Cover Herb Stratum (Plot size: 5ft) 1. Lysichiton americanus 60 Y OBL 2. Athyrium americanum 2 N FAC 3. 4. 5. 6. 7. 8. 62 = Total Cover Woody Vine Stratum (Plot size: 15ft) 1. None 2. 0 = Total Cover % Bare Ground in Herb Stratum 15 % Cover of Biotic Crust 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: Dominance Test is >50% Prevalence Index is ≤3.01 Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet) 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: EF-WET1 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 2/1 100 Clay loam 8-14 10YR 4/1 100 Clay loam 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) Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) 3Indicators of hydrophytic vegetation and Sandy Gleyed Matrix (S4) Redox Depressions (F8) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soil Present? Yes No Remarks: Hydric soils assumed hydric based on presence of hydrophytic vegetation and wetland hydrology, and because no conclusive evidence of a non-hydric soil was found. Redox was not observed in this pit. We erred to the cautious side due to presence of hydrology and hydrophytic vegetation. 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 1, 2, 4A, and 4B) Water Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B)) High Water Table (A2) Salt Crust (B11) Drainage Patterns (B10) Saturation (A3) Aquatic Invertebrates (B13) Dry-Season Water Table (C2) Water Marks (B1) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) Sediment Deposits (B2) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2) Drift Deposits (B3) Presence of Reduced Iron (C4) Shallow Aquitard (D3) Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5) Iron Deposits (B5) Stunted or Stressed Plants (D1)(LRR A) Raised Ant Mounds (D6(LRR A) Surface Soil Cracks (B6) Other (Explain in Remarks) Frost-Heave Hummocks (D7) Inundation Visible on Aerial Imagery (B7) 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: Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Appendix B APPENDIX B PHOTODOCUMENT, TALASAEA CONSULTANTS, 2017 Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 1 The following photos were taken on 2 May 2016 and 22 February 2017 by Kristen Numata of Talasaea Consultants with the intention of helping reviewers of the Critical Areas Report become familiar with the critical areas on-site. Wetlands delineated on- site were part of a larger effort to document all wetlands found throughout the Federal Way Campus, LLC property in Federal Way (formerly owned by Weyerhaeuser), which explains the irregular wetland labels. Included in this photodocument are photos of the fourteen (14) on-site wetlands and one (1) stream, typical coniferous and deciduous upland, and gravel access roads throughout the site. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 2 Wetland DP (Photo 1) Photo 1. Photo taken from the access road adjacent to Wetland DP. Wetland is dominated by red alder (Alnus rubra). Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 3 Wetland DQ (Photos 2 - 3) Photo 2. Photo taken from the northwest side of Wetland DQ, facing south. The wetland on this side is surrounded by steep slopes covered in English ivy (Hedera helix). The water remaining in the wetland was approximately two feet deep. Photo 3. From the east side of the wetland facing west toward the outlet. Weyerhaeuser Way South is located approximately 15 feet behind the photographer. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 4 Wetland DR (Photos 4 - 5) Photo 4. From the northeast corner of Wetland DR facing southeast into the wetland. Weyerhaeuser Way South is located to the left. Photo 5. From the south end of the wetland facing north. The test plot flag is indicated with an arrow for orientation. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 5 Wetland DT (Photos 6 – 7) Photo 6. From the northeast corner looking southwest into the wetland. The access road is approximately 20 feet behind the photographer. Photo 7. Facing northeast in the northern branch of the wetland. Vegetation is dominated by salmonberry (Rubus spectabilis). Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 6 Wetland DU (Photo 8) Photo 8. Photo taken from the north side of Wetland DU, facing south. Hydrology within the wetland was about six inches deep, and is dominated by salmonberry. Wetland DW (Photo 9) Photo 9. Photo from the south side of the wetland facing north. Hydrology within the wetland was up to six inches deep. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 7 Wetland DX (Photo 10) Photo 10. Panorama from the north side of the wetland facing southwest. Hydrology within the wetland was up to 10 inches deep. Wetland DY (Photo 11) Photo 11. Photo from the south side of the wetland facing north. Wetland DY met the hydrology indicator for sparsely vegetated concave surface. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 8 Wetland DZ (Photo 12) Photo 12. Panorama from the north side of the wetland facing southwest. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 9 Wetland EB (Photos 13 - 14) Photo 13. Inside the wetland facing east toward Weyerhaeuser Way South, which is approximately 30 feet in front of the photographer. The culvert pictured is the outlet for Wetland EB. Photo 14. Panorama from the north end of the wetland facing southeast. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 10 Wetland EC (Photos 15 - 16) Photo 15. From the northeast corner looking southwest into the wetland. Photo 16. Panorama from the northwest corner facing southeast. The middle flag indicated with an arrow is the location of the test plot. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 11 Wetland ED (Photos 17 - 18) Photo 17. Panorama along the east end of the wetland facing west. This area of the wetland is dominated by western skunk cabbage (Lysichiton americanus), salmonberry and lady fern (Athyrium filix-femina). Photo 18. In the northwest corner of the wetland facing southeast. This area of the wetland is dominated by non-wetland vegetation such as sword fern (Polystichum munitum) and False Lily of the Valley (Maianthemum dilitatum), but exhibits seasonal ponding and hydric soils. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 12 Wetland EE (Photos 19 - 20) Photo 19. Panorama from the southeast corner of Wetland EE facing northwest. Oregon crabapple (Malus fusca) dominates the wetland. Photo 20. From the northeastern edge of the wetland facing west. Please note there are two sets of flags: pink hanging flags and pink and black stripe hanging flags. Wetland EE was redelineated in April 2016 using the pink and black striped flags. The test plot flag is indicated with an arrow. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 13 Wetland EF (Photos 21 - 22) Photo 21. Panorama from the northeast corner of the wetland facing southwest. Wetland EF is dominated by salmonberry, lady fern, western skunk cabbage, and red alder. Photo 22. Western skunk cabbage in the wetland. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 14 Stream EA (Photos 23 – 24) Photo 23. Panorama of the stream channel along the access road. Stream flows from left (north) to right (south). Photo 24. Panorama of the stream crossing underneath the access road in the southeast of the site. The stream flows from the right (north) to the left (south), and continues under Highway 18. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 15 Coniferous Uplands (Photos 25 - 26) Photo 25. Typical coniferous upland: Douglas fir (Pseudotsuga menziesii), trailing blackberry (Rubus ursinus), and sword fern. Not pictured, but found in other uplands: English ivy and Himalayan blackberry (Rubus armeniacus). Photo 26. Typical coniferous canopy. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 16 Deciduous Uplands (Photos 27 - 28) Photo 27. Typical deciduous upland: Norway maple (Acer platanoides, planted), sugar maple (Acer saccharum, planted), big-leaf maple (Acer macrophyllum), vine maple (Acer circinatum), red elderberry (Sambucus racemosa), salmonberry, and Himalayan blackberry. Photo 28. Typical deciduous canopy. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 17 Herbaceous Uplands (Photos 29 - 30) Photo 29. Typical herbaceous upland: sword fern, Himalayan blackberry, Pacific bleeding heart (Dicentra formosa), trailing blackberry and snowberry (Symphoricarpos albus). Photo 30. Typical herbaceous upland: sword fern, Himalayan blackberry, Pacific bleeding heart, trailing blackberry and snowberry. Greenline Building A Critical Areas Report and Buffer Averaging Plan 2 March 2018 Copyright © 2018 Talasaea Consultants, Inc. 1572B Photodocument (03-2018).docx Page 18 Access Roads (Photos 31 - 32) Photo 31. Panoramic view from the northeast corner of the site facing southeast. Photo 32. Start of the access road in the southeast corner of the site facing southwest. Weyerhaeuser Way South is approximately 150 feet behind the photographer. Critical Areas Report and Greenline Building A Buffer Averaging Plan 10 February 2020 Copyright © 2020 Talasaea Consultants, Inc. 1572B Greenline Building A CA Report (2020-02-10) Appendix C APPENDIX C Buffer Averaging Plan Sheets Sheet W1.0 Existing Conditions Plan Sheet W1.1 Wetland Exemption Exhibit Sheet W1.2 Proposed Site Plan, Impacts & Mitigation Overview Plan Sheet W2.0 Clearing, Grubbing, & Habitat Features Plan & Specifications Sheet W3.0 Planting Plan Sheet W3.1 Planting Plan Sheet W3.2 Plant Schedule, Notes & Details Sheet W4.0 Planting Specifications Know what'sbelow.Callbefore you dig.a Know what'sbelow.Callbefore you dig.a Know what'sbelow.Callbefore you dig.a Know what'sbelow.Callbefore you dig.a··············· Know what'sbelow.Callbefore you dig.a Know what'sbelow.Callbefore you dig.a Know what'sbelow.Callbefore you dig.aTHIS AREA IS PROTECTEDTO PROVIDE WILDLIFE HABITATAND TO MAINTAIN CRITICALAREA(S) FUNCTIONS/VALUES.PLEASE DO NOT DISTURB THISVALUABLE RESOURCECRITICAL AREAPROTECTION AREACONTACT CITY OF FEDERAL WAYFOR MORE INFORMATION Know what'sbelow.Callbefore you dig.a½½½½¾¾½