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09D- Habitat Management Plan
Port Hadlock UGA Sewer Critical Areas Report and HMP- DRAFT Page 2 ESA April 2022 Port Hadlock UGA Sewer Critical Areas Report and HMP Page i ESA April 2022 CONTENTS 1.0 PROJECT AUTHORIZATION AND SCOPE OF WORK .................................................... 5 2.0 PROJECT OVERVIEW AND STUDY AREA ........................................................................ 5 3.0 CRITICAL AREA DEFINITION AND REGULATIONS ...................................................... 6 4.0 METHODS................................................................................................................................ 7 4.1 REVIEW OF E XISTING INFORMATION ............................................................................................... 7 4.2 ON-SITE INVESTIGATION ................................................................................................................. 7 4.2.1 Wetland Identification and Delineation ............................................................................. 7 4.2.2 Wetland Functions ........................................................................................................... 8 4.2.3 Stream Delineation........................................................................................................... 8 5.0 Site Characteristics ................................................................................................................... 8 5.1 WETLANDS .................................................................................................................................... 8 5.1.1 Wetland A ........................................................................................................................ 9 5.1.2 Wetland B ........................................................................................................................ 9 5.1.3 Wetland C ...................................................................................................................... 10 5.1.4 Wetland D ...................................................................................................................... 12 5.1.5 Wetland Classifications and Buffer Requirements ........................................................... 13 5.2 FISH AND WILDLIFE HABITAT CONSERVATION AREAS (STREAMS AND MARINE WATERS) ............... 14 5.3 OTHER CRITICAL AREAS ............................................................................................................... 16 5.4 OTHER GENERAL SITE CHARACTERISTICS ..................................................................................... 16 5.4.1 Soils and Vegetation ....................................................................................................... 16 6.0 PROJECT IMPACTS ............................................................................................................. 17 6.1 WETLAND BUFFER IMPACTS ......................................................................................................... 17 6.1.1 Wetland C Buffer (Percolation Pond and Floodplain Excavation) ................................... 17 6.1.2 Wetland D Buffer (Wastewater Pipeline) ........................................................................ 18 6.2 FWHCA IMPACTS ........................................................................................................................ 18 6.3 FLOODPLAIN IMPACTS .................................................................................................................. 19 6.3.1 Habitat Assessment ........................................................................................................ 19 7.0 MITIGATION PLAN ............................................................................................................. 21 7.1 IMPACT AVOIDANCE AND MINIMIZATION ...................................................................................... 21 7.1.1 Measures to Minimize Wildlife Disturbance .................................................................... 22 7.1.2 Water Quality Protection Measures ................................................................................ 22 7.2 COMPENSATORY MITIGATION ....................................................................................................... 22 7.2.1 Buffer Revegetation and Enhancement ............................................................................ 22 7.2.2 Floodplain Mitigation .................................................................................................... 24 8.0 GOALS, OBJECTIVES, AND PERFORMANCE STANDARDS ........................................ 24 9.0 LIMITATIONS ....................................................................................................................... 25 10.0 REFERENCES ....................................................................................................................... 26 FIGURES AND PHOTOGRAPHS ..................................................................................................... 29 APPENDIX A: WETLAND CHARACTERISTICS AND REGULATORY SUMMARY ............. A-1 APPENDIX B: COMMON AND SCIENTIFIC NAMES OF PLANTS AND THEIR WETLAND INDICATOR STATUS ..................................................................................................................... B-1 APPENDIX C: WASHINGTON STATE WETLAND RATING SYSTEM AND RATING FORMS .............................................................................................................................................. C-1 APPENDIX D: WETLAND DETERMINATION DATA SHEETS ................................................ D-1 Port Hadlock UGA Sewer Critical Areas Report and HMP Page ii ESA April 2022 LIST OF TABLES Table 1. Soil Characteristics at DP-1 (Wetland A) .......................................................................9 Table 2. Soil Characteristics at DP-3 (Wetland B) ..................................................................... 10 Table 3. Soil Characteristics at DP-WLB (Wetland B) .............................................................. 10 Table 4. Soil Characteristics at DP-5 (Wetland C) ..................................................................... 11 Table 5. Soil Characteristics at DP-7 (Wetland C) ..................................................................... 11 Table 6. Soil Characteristics at DP-WLC (Wetland C) .............................................................. 11 Table 7. Soil Characteristics at DP-8 (Wetland D) ..................................................................... 12 Table 8. Soil Characteristics at DP-10 (Wetland D) ................................................................... 13 Table 9. Soil Characteristics at DP-WLC (Wetland D) .............................................................. 13 Table 10. Wetland Categories and Buffer Widths per JCC Table 18.22.730(6) .......................... 14 Table 11. Federally Listed Species and Critical Habitats in the Project Vicinity (ESA Adolfson, 2009) ................................................................................................................................. 15 Table 12. Wetland Buffer Impacts ............................................................................................. 17 Table 13. Type and Amount of Compensatory Mitigation ......................................................... 23 Table 14. Performance Standards for Port Hadlock Wastewater Treatment Plant Mitigation Project ............................................................................................................................... 25 LIST OF FIGURES 1 Vicinity Map 2 Urban Growth Boundary, Core Service Area and Collection System Pip ing 3 Chimacum Creek and Wetlands A, B, C 4 Wetland D 5 Critical Aquifer Recharge Areas Port Hadlock UGA Sewer Critical Areas Report and HMP Page iii ESA April 2022 6 Seismic Hazard Areas 7 Landslide Hazard Areas 8 Floodplains 9 Soils 10 Impacts and Mitigation 11 Floodplain Impacts and Mitigation 12 Shoreline Environment Zones Plan Set Sheets W-001 to W-106 Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 5 April 2022 1.0 PROJECT AUTHORIZATION AND SCOPE OF WORK At the request of the Jefferson County Department of Public Works, Environmental Science Associates (ESA) prepared this technical report for the Port Hadlock wastewater treatment facilit ies site, located in unincorporated Jefferson County, Washington. This report is organized to meet the requirements of the Jefferson County critical areas ordinance (Jefferson County Code [JCC] Chapter 18.22). 2.0 PROJECT OVERVIEW AND STUDY AREA Jefferson County Public Works is proposing to construct a sewer collection system, wastewater treatment plant, and reuse system to serve the Irondale and Port Hadlock sewer service area to meet regulatory requirements and projected growth through 2041 . As part of its planning activities under the Washington State Growth Management Act (GMA), Jefferson County has designated the communities of Irondale and Port Hadlock as an unincorporated Urban Growth Area (UGA), with a sewer service area encompassing the entire UGA boundary. This effort began in the early 1990s with the start of GMA Planning. A centralized sewer service facility has been considered for the Irondale and Port Hadlock area for over 30 years, as it is the most densely populated area (number of households per square mile) of the County, second to the City of Port Townsend. Jefferson County’s 1998 Comprehensive Plan reflected the UGA considerations and density discussions. This was followed by several years of evaluation and environmental analysis culminating with completion of the Tri-Area/Glen Cove Special Study, incorporated as the Final Supplemental EIS for the Comprehensive Plan. The Irondale/Port Hadlock UGA boundary was adopted in 2002. Planning and design for wastewater collection, treatment, and reuse facilities is being conducted to protect water quality in Puget Sound as well as the health of area residents. The project will allow sewer capacity to match population growth in a cost -effective manner that minimizes potential harm to the environment. Pla nning is complete and the Department of Ecology Approved a Wastewater Facility Plan in 2008 and an Updated Plan in 2021 . The County is proposing to construct the wastewater treatment plant to meet expected regulatory requirements and projected growth thro ugh 2041. Treatment plant construction has been phased to provide a more viable project funding package and allow for simple modular expansion of treatment capacity under future construction phases (Tetra Tech, 2021). Project elements include the following: 1. Wastewater Collection System: Construction of a pressure wastewater collection system; 2. Effluent Reuse: Land application and groundwater recharge via surface percolation of treated effluent into a rapid rate percolation basin; 3. Wastewater Treatment: Construction of a wastewater treatment facility using a membrane bioreactor (MBR) system that produces reliable Class A reclaimed water; Port Hadlock UGA Sewer Critical Areas Report and HMP Page 6 ESA April 2022 4. Disinfection: Ultraviolet (UV) disinfection of treated effluent; and 5. Solids Handling and Reuse: Thickening and temporary sto rage of solids on-site. Solids and/or decanted solids would be hauled off-site for treatment and reuse. The Port Hadlock Sewer Planning Area is bordered by Port Townsend Bay on the east, Elkins and Lopeman Roads on the south, Chimacum Creek on the north, and State Route (SR) 19 on the west (Figure 1). The project area for the critical areas study encompassed approximately 66 acres in the southern part of the Port Hadlock Sewer Planning Area where the County intends to construct the wastewater treatment plant and reuse facilities for reclaimed water. The proposed facilities are located at the following sites: The proposed treatment plant site is approximately 26 acres (parcel 901023006) located approximately 650 feet north of Lopeman Road and approximately 900 feet south of Ness’ Corner Road (SR 116). The treatment plant located on a former gravel mine, with upland forest located to the north and west, a large wetland to the east, and pastureland to the south. The wastewater reuse site is a 13.5-acre property (parcel 901112010) located immediately south of Lopeman Road. The reuse site was formerly mined, and gravel processing operations occur on the adjacent eastern property, with wetlands and Chimacum Creek to the west. Approximately 3 miles of existing and new pressure sewer pipeline in the core service area within the Urban Growth Area (Figure 1). 3.0 CRITICAL AREA DEFINITION AND REGULATIONS Jefferson County regulates the following GMA: Wetlands; Areas with a critical recharging effect on aquifers used for potable water, referred to as critical aquifer recharge areas (CARAs); Ares being of critical importance to the maintenance of endangered, threatened, or sensitive species of fish, wildlife, or plants, or designated habitats and species of local importance, collectively referred to as fish and wildlife habitat conservation areas (FWHCAs); Frequently flooded areas (floodplains); and Geologically hazardous areas (GHAs). Specific definitions and designation criteria are provided in JCC 18.22. Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 7 April 2022 4.0 METHODS ESA’s cr itical area study included a review of existing information and on-site investigation. The on-site investigation was limited to wetlands and streams. Information on other designated critical areas is provided for background purposes only. Field investigation and independent verification of geologically hazardous areas, frequently flooded areas and critical aquifer recharge areas were not part of the scope of this study. 4.1 Review of Existing Information ESA reviewed existing literature, maps, and other materials to identify characteristics of the subject properties, including but not limited to: Natural Resource Conservation Service (NRCS) online Soil Survey; Existing wetland and stream mapping from the U.S. Fish and Wildlife Service (USFS), National Wetland Inventory (NWI) and Jefferson County; Habitats and Species data from the Washington Department of Fish and Wildlife (WDFW), National Marine Fisheries Service (NMFS) and U.S. Fish and Wildlife Service; Project information provided by the project engineer , Tetra Tech, Inc. and Jefferson County GIS map portal (available at Public Land Records (jeffcowa.us)). 4.2 On-site Investigation 4.2.1 Wetland Identification and Delineation Methods defined in Regional Supplements to the U.S. Army Corps of Engineers 1987 Wetlands Delineation Manual were used to determine the presence and extent of wetlands in the study area. The methodology outlined in the manuals is based upon three essential characteristics of wetlands: (1) hydrophytic vegetation; (2) hydric soils; and (3) wetland hydrology. Field indicators of these three characteristics must all be present in order to determine that an area is a wetland (unless problem areas or atypical situations are encountered). The “routine on-site determination method” was used to det ermine the wetland boundaries. Formal data plots were established where information regarding each of the three wetland parameters (vegetation, soils, and hydrology) was recorded. This information was used to distinguish wetlands from non-wetlands. If wetlands were determined to be present on the subject property, the wetland boundaries were delineated. Wetland boundaries were identified with sequentially numbered colored flagging imprinted with the words WETLAND DELINEATION. Data plot locations were also marked with colored flagging. Delineations were completed by ESA biologists on May 26, 2011 and updated on June 24, and July 23, 2021. The methods used to assess wetland characteristics are described in greater detail in Appendix A. Common plant names are used throughout this text; the scientific names are presented in Appendix B. Port Hadlock UGA Sewer Critical Areas Report and HMP Page 8 ESA April 2022 4.2.2 Wetland Functions Wetland functions were assessed using the Washington State Department of Ecology’s Wetland Rating System for Western Washington – Revised (Hruby, 2014). Although this system is designed to rate wetlands, it is based on whether a particular wetland performs a particular function and the relative level to which the function is performed . An assessment of wetland functions is inherent in the rating system. This system was developed by Ecology to differentiate wetlands based on their sensitivity to disturbance, their significance, their rarity, our ability to replace them, and the beneficial functions they provide t o society. Appendix C provides additional information about the rating system and includes completed rating forms for the project . 4.2.3 Stream Delineation ESA flagged the ordinary high water mark (OHWM) of Chimacum Creek in the study area in May 2011. ESA marked the OHWM with sequentially numbered colored flagging. Biologists also made general observations of in-stream habitat, such as depth of surface water, streambed substrate, streambank erosion, and in-stream habitat features such as large wood, boulders, riffles, and pools. The condition of riparian (streamside) vegetation was also recorded, including plant species, canopy cover, and evidence of human disturbance. 5.0 SITE CHARACTERISTICS This section describes the critical areas identified on the subject parcels as well as general site characteristics. 5.1 Wetlands The National Wetland Inventory (NWI) maps and Jefferson County critical area maps identify several wetlands within the Port Hadlock Sewer Planning Area. Most of the wetlands are associated with Chima cum Creek or the nearshore estuarine areas. The maps depict several large wetlands located upstream of the East and West Forks of Chimacum Creek, in addition to a large wetland located east of the proposed wastewater treatment plant site. During the site investigations, ESA identified four wetlands in the study area, designated as Wetlands A, B, C, and D (Figures 2 and 3). In 2011, eleven data plots were established within relatively uniform areas of vegetation on the site. In 2021, five additional data plo ts were established. Data sheets for the data plots are provided in Appendix D. The wetland boundaries flagged by ESA were field verified by Donna Frostholm, Wetlands Specialist, Jefferson County Department of Community Development, and surveyed by Tetra Tech in 2011. In 2021, ESA reflagged and mapped the wetland boundaries using global positioning system (GPS). The wetland boundaries did not change from 2011. Wetland delineations and soil criteria were based upon Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys and Coast Region (US Army Corps of Engineers, 2010). Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 9 April 2022 5.1.1 Wetland A Overview. Wetland A is located south of Lopeman Road and west of the proposed reclaimed water reuse site. It is a depressional wetland 0.49 acre in size. Data Plot (DP) 1 characterizes Wetland A, while DP-2 represents the adjacent uplands. Wetland A is separated from Wetlands B and C by an abandoned gravel road located atop fill material. The road is approximately 10 feet wide and vegetated with weedy herbaceous species. There was very little change in Wetland A between 2011 and 2021 (Figure 2). Hydrology. An open water, ponded area with water approximately two feet deep was present in the central part of Wetland A. At DP-1, located along the margin of the ponded area, wetland hydrology indicators observed included soil saturation at the surface, a high water table at eight inches’ depth, and surface and inundation visible on aerial imagery. Soils. Soil conditions observed at DP-1 in Wetland A are summarized in the table below. Soils at DP-1 were assumed to be hydric based on the presence of prolonged inundation in a depressional area. Table 1. Soil Characteristics at DP-1 (Wetland A) Depth below Surface (inches) Matrix Color Redox Features Texture 0-8 Very dark brown 10YR 2/2 None Clay loam 8-19 Very dark brown 10YR 2/2 None Gravelly sand with large cobbles Vegetation. Wetland A includes aquatic bed, palustrine scrub-shrub, and open water habitat types (Photo 1). Dominant vegetation in Wetland A, surrounding the open water area, includes Himalayan blackberry, Nootka rose, Scouler’s willow, and herbaceous species such as reed canarygrass, field horsetail and creeping buttercup. Wetland Functions. The results of the functions assessment for the wetland areas are presented in Appendix C. The hydrologic and water quality improvement functions of Wetland A result from its ability to store significant amounts of ponded water, potentially including untreated surface runoff from nearby roads and the adjacent quarry site. Wetland A provides open water and scrub- shrub habitats for wildlife but lacks special habitat features such as snags. It is part of a large and relatively undisturbed vegetated corridor that includes Chi macum Creek, Wetlands B and C, and offsite wetlands to the south. Wildlife may use this corridor as they move through the Chimacum Creek valley. 5.1.2 Wetland B Overview. Wetland B is located north of Wetland A and west of the proposed reclaimed water reuse sit e. It is a depressional wetland 1.45 acres in size. DP-3 characterizes Wetland B, while Port Hadlock UGA Sewer Critical Areas Report and HMP Page 10 ESA April 2022 DP-4 represents the adjacent uplands. Wetland B is separated from Wetlands A and C by an abandoned gravel road located atop fill material. There was very little change in Wetland B between 2011 and 2021 (Figure 2). Hydrology. Wetland hydrology indicators observed in Wetland B included surface water, a high water table at four inches below the surface, and saturation to the surface . Surface ponding within the plot was two to three inches deep; water approximately two to three feet deep was present in the central part of the wetland. Soils. Soil conditions observed at DP-3 in Wetland B are summarized in the tables below. The observed soils met hydric soil criterion A12 (thick dark surface). Table 2. Soil Characteristics at DP-3 (Wetland B) Depth below Surface (inches) Matrix Color Redox Features Texture 0-10 Very dark gray 2.5Y 3/1 None Silty sand 10-18 Dark gray 2.5Y 4/1 Light olive brown 2.5Y 5/4 (50%) Silty sand Table 3. Soil Characteristics at DP-WLB (Wetland B) Depth below Surface (inches) Matrix Color Redox Features Texture 0-7 Gray (5/N) 7.5 YR 6/8 (5%) Loamy sand 7-19 Dark gray (4/N) None Loamy sand Vegetation. Wetland B includes palustrine emergent, scrub-shrub, and forested, and open water vegetation communities (Photo 2). Dominant plant species in Wetland B include Himalayan blackberry, Scouler’s willow, red alder saplings, and herbs such as reed canary grass, field horsetail, bentgrass, velvetgrass, and soft rush. Wetland Functions. The results of the functions assessment for the wetland areas are presented in Appendix C. The hydrologic and water quality improvement functions of Wetland B result from its ability to store significant amounts of ponded water, potentially including untreated surface runoff from nearby roads and the adjacent quarry site. Wetland B provides open water, emergent, scrub-shrub, and forested habitats for wildlife. It is part of a large and relatively undisturbed vegetated corridor that includes Chimacum Creek, Wetlands A and C, and offsite wetlands to the south. Wildlife may use this corridor as they move through the Chimacum Creek valley. 5.1.3 Wetland C Overview. Wetland C is a large wetland that extends far south of the project site. The onsite portion of the wetland, totaling 5.35 acres, is located west of the reclaimed water reuse site and Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 11 April 2022 southwest of Wetlands A and B. It is separated from Wetlands A and B by an old road located on top of fill material. This area of Wetland C is characterized by DP-5 and DP-7, while DP-6 represents the adjacent upland. The total area of Wetland C is estimated at 1,436 acres based on aerial photography and Jefferson County wetland mapping. In the study area, there was very little change in Wetland C between 2011 and 2021 (Figure 2). Hydrology. Wetland hydrology indicators observed at the two data plots in Wetland C included a high water table and soil saturation to the surface. Soils. Soil conditions observed at DP-5 in Wetland C are summarized in the table below. The observed soils met hydric soil criterion F6 (redox dark surface). Table 4. Soil Characteristics at DP-5 (Wetland C) Depth below Surface (inches) Matrix Color Redox Features Texture 0-9 Black 10YR 2/1 None Clay loam 9-16 Black 7.5YR 2.5/1 Dark brown 7.5YR 3/4(5%) Silt loam Soil conditions observed at DP-7 in Wetland C are summarized in the table s below. The observed soils met hydric soil criteria A2 (histic epipedon) and thick dark surface (A12). Table 5. Soil Characteristics at DP-7 (Wetland C) Depth below Surface (inches) Matrix Color Redox Features Texture 0-6 Very dark brown 10YR 2/2 None Muck 6-18 Black 10YR 2/1 None Silt loam Table 6. Soil Characteristics at DP-WLC (Wetland C) Depth below Surface (inches) Matrix Color Redox Features Texture 0-6 10YR 3/2 10YR 5/8 3% Loam 6-9 2.5Y 6/2 10YR 5/8 5% Loam Vegetation. The onsite portion of Wetland C contains palustrine emergent and scrub-shrub communities (Photos 3 and 4). Forested areas appear to be present in offsite parts of the wetland. The scrub-shrub portion of Wetland C onsite is dominated by Scouler’s willow, with scattered Port Hadlock UGA Sewer Critical Areas Report and HMP Page 12 ESA April 2022 creeping buttercup and Watson’s willowherb in the understory. The emergent portion of the onsite wetland is dominated by creeping buttercup and reed canarygrass, with some common cattail. Wetland Functions. The results of the functions assessment for the wetland areas are presented in Appendix C. Wetland C has a high potential and good opportunity to provide water quality improvement functions because it has extensive persistent vegetation, areas of seasonal ponding, and organic soils that help to remove pollutants from surface runoff (for example, from agricultural and residential areas and the nearby quarry site). Because of ongoing salmon restoration efforts in Chimacum Creek, this wetland is important in attenuating and cleansing surface runoff in the watershed. Wetland C is a very large wetland system with a diversity of wildlife habitats. 5.1.4 Wetland D Overview. Wetland D is a depressional wetland located north of Lopeman Road and east of the proposed wastewater treatment plant . The total area of Wetland D is approximately 27 acres, of which 21.6 acres are located on the project site. DP-8 and DP-10 characterize Wetland D, while DP-9 and DP-11 represent the adjacent upland. There was very little change in Wetland D between 2011 and 2021 (Figure 3). Hydrology. Wetland hydrology indicators observed at DP-8 included surface water 8 to 12 inches deep, high water table at 2 inches’ depth, and saturation to the surface. At DP-10, saturation was present at 10 inches below the surface. Soils. Soil conditions observed at DP-8 in Wetland D are summarized in the table below. The observed soils met hydric soils criterion S5 (sandy redox). Table 7. Soil Characteristics at DP-8 (Wetland D) Depth below Surface (inches) Matrix Color Redox Features Texture 0-8 Very dark grayish brown 2.5Y 3/2 None Sandy gravelly loam with cobbles 8-12 Very dark grayish brown 2.5Y 3/2 Dark gray 5Y 4/1 (25%) Dark yellowish brown 10YR 3/6 (25%) Dark yellowish brown 10YR 4/6 (25%) Silty sand 12-16 Very dark grayish brown 10YR 3/2 Dark yellowish brown 10YR 4/4 (3%) Sandy loam with cobbles Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 13 April 2022 Soil conditions observed at DP-10 in Wetland D are summarized in the tables below. The observed soils met hydric soils criteria A11 (depleted below dark surface) and F3 (depleted matrix). Table 8. Soil Characteristics at DP-10 (Wetland D) Depth below Surface (inches) Matrix Color Redox Features Texture 0-10 Dark gray 2.5Y 4/1 Dark yellowish brown 10YR 4/6 (3%) Silt loam 10-16 Dark gray 10YR 4/1 (15%) Light yellowish brown 2.5Y 6/3 (70%) Dark yellowish brown 10YR 4/6 (10%) Greenish gray 5G 5/1 (5%) Clay Table 9. Soil Characteristics at DP-WLC (Wetland D) Depth below Surface (inches) Matrix Color1 Redox Features Texture 0-4 Black 10YR 2/1 None Silty clay 4-16 Very dark grayish brown 2.5Y 3/2 None Loamy sand 1. Meets secondary characteristics. Vegetation. The northern part of Wetland D is a palustrine scrub-shrub community dominated almost entirely by Douglas’ spirea, with willow species in some areas (Photo 5). The southern part of the wetland is a palustrine emergent community consisting of a ponded depression wit h a fringe of grazed pasture (Photo 6). The grazed pasture is dominated by bentgrass, common velvetgrass, and other common herb species. Wetland Functions. The results of the functions assessment for the wetland areas are presented in Appendix C. Because Wetland D does not have an outlet, the wetland is able to store water and potentially reduce nutrients and other pollutants in runoff from surrounding r esidential and agricultural areas. Wetland D provides emergent and scrub-shrub habitats for wildlife. 5.1.5 Wetland Classifications and Buffer Requirements Jefferson County code (JCC 18.22.710) requires wetlands to be classified using Ecology's Wetland Rating System for Western Washington – Revised (Hruby, 2014). Using this system, Wetlands A and B received a rating of Category III, while Wetlands C and D r eceived a rating of Category II. Wetland rating forms completed by ESA are provided in Appendix C. In Jefferson County the buffer width assigned to a wetland depends on the wetland rating, its score habitat functions, and the intensity of the proposed land use . Jefferson County has indicated the proposed wastewater treatment project would be considered a "high impact" land Port Hadlock UGA Sewer Critical Areas Report and HMP Page 14 ESA April 2022 use (Frostholm, personal communication, 2011). Updated code supports this conclusion (JCC 18.22.730 (6)(i)). The buffer widths for Wetlands A through D are summarized in Table 10. Table 10. Wetland Categories and Buffer Widths per JCC Table 18.22.730(6) Wetland Size Rating Scores based on Ecology System Buffer Width based on High Impact Land Use A 0.49 acre Category III Total score: 18 Habitat score: 5 80 feet B 1.45 acres Category III Total score:18 Habitat score: 5 80 feet C 5.35 acres Category II Total score: 20 Habitat score: 6 150 feet D 27 acres (approx) 21.6 acres on-site Category II Total score: 22 Habitat score: 6 150 feet 5.2 Fish and Wildlife Habitat Conservation Areas (Streams and Marine Waters) The WDFW has not mapped any sensitive species occurrences on the Port Hadlock wastewater facilities sites (WDFW, 2021), nor has WDNR mapped any rare plant communities on the sites (WDNR, 2021). The NMFS and the USFWS indicate that the project will occur within the range of several federally listed species and/or designated critical habitats (Table 11). No state or federally listed species were observed or are likely to occur in the project area, with the exception of listed salmonid species in Chimacum Creek and/or in the marine waters of Port Townsend Bay. Therefore, the only designated FWHCAs in the project area are Chimacum Creek and Port Townsend Bay (ESA Adolfson, 2009). The project does not involve any work within these waters or their buffers. Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 15 April 2022 Table 11. Federally Listed Species and Critical Habitats in the Project Vicinity (ESA Adolfson, 2009) Common Name (Scientific Name) Federal Status Species Presence & Critical Habitat Coastal-Puget Sound Distinct Population Segment Bull Trout (Salvelinus confluentus) Threatened Bull trout are not precluded from the project area by any physical barrier, but may be substantially out of their range and their occurrence in the project area is likely to be rare. No designated habitat has been identified within Chimacum Creek or the marine nearshore adjacent to Port Hadlock. The closest designated critical habitat is the east shores of Discovery Bay. Hood Canal Summer -Run Chum Salmon Evolutionarily Significant Unit (Oncorhynchus keta) Threatened Summer chum are known to occur in Chimacum Creek. Designated critical habitat in the project vicinity includes all marine waters and Chimacum Creek extending from the mouth upstream and through the project area. Puget Sound Chinook Salmon Evolutionarily Significant Unit (Oncorhynchus tshawytscha) Threatened Chinook use of Chimacum Creek has not been documented; however, juvenile Chinook are documented as occurring, although in extremely low numbers, along the marine nearshore adjacent to Chimacum Creek, Irondale, and Port Hadlock Designated critical habitat for Chinook salmon in the project vicinity includes all marine waters. Puget Sound Steelhead Distinct Population Segment (Oncorhynchus mykiss) Threatened Winter steelhead occur in Chimacum Creek. Critical habitat for Puget Sound DPS steelhead has not been designated or proposed at this time. Marbled Murrelet (Brachyramphus marmoratus) Threatened No documented occurrence ESA biologists observed Chimacum Creek within the study area and delineated its banks. Chimacum Creek flows along the western edge of Wetland C (Figure 2). This part of the stream channel is 8 to 12 feet wide, with substrate consisting of sand and large gravel. Riparian vegetation ranges from dense shrubs to a monoculture of reed cana rygrass (Photo 7). The left bank (eastern bank) is bordered by a 100 to 200-foot-wide riparian zone; riparian vegetation along the left bank was much narrower . Flowing water 1 foot to 2.5 feet deep was present in the stream channel during the May 2011 site visit. Floodplain connectivity is fair with some channel incision and evidence of relic levees that have been abandoned and are in disrepair . Large woody debris is lacking throughout the reach and material that is present is deciduous and less than 4 inches in diameter. Port Hadlock UGA Sewer Critical Areas Report and HMP Page 16 ESA April 2022 The creek originates from multiple spring-fed lakes and streams in the forested foothills on the northeast side of the Olympic Peninsula (Correa, 2002). The Chimacum Creek watershed is approximately 30 square miles in area, which includes 30 miles of mainstem and tributary streams (Ames et al., 2000). The mainstem divides upstream into two forks at approximately river mile 2.9, located just upstream of the project area. Chimacum Creek flows enter the marine waters of Port Townsend Bay and Ad miralty Inlet near Irondale. Chimacum Creek is a Type F (fish-bearing) water according to the State’s water typing system which Jefferson County has adopted. The standard buffer width for Type F streams is 150 feet (JCC Table 18.22.630(1)). The buffer of Chimacum Creek falls inside the buffers of Wetlands A, B, and C. 5.3 Other Critical Areas Jefferson County has mapped other critical area in and around the proposed project facilities. A majority of the study area as a Critical Aquifer Recharge Area (Figure 4). Portions of the study area are also considered seismic hazard areas (Figure 5). Landslide hazard areas are mapped along the Port Ludlow Bay shoreline, north of the project area (Figure 6). The area along the Chimacum Creek corridor is mapped as a frequent ly flooded area (designated FEMA floodplain and floodway) and the shoreline of Port Ludlow Bay is also a AE High Risk Zone (Figure 7). 5.4 Other General Site Characteristics 5.4.1 Soils and Vegetation HWA Geosciences, Inc. conducted a reconnaissance to evaluate hydrogeologic and soil conditions in the region for potential land application sites for reclaimed water (HWA GeoSciences, Inc., 2007). The study found that much or all of the study area is underlain by relatively well-drained, granular soils, with few areas of steep slopes or wetlands. The Natural Resources Conservation Service (NRCS) maps soils in the project vicinity as Hoypus gravelly sandy loam, 0 to 15 percent slopes. Surrounding areas are mapped as Clallam gravelly sandy loam, 0 to 15 percent slopes; McMurray and Mukilteo peats; Mukilteo peat, moderately shallow variant; Semiahmoo muck, moderately shallow variant; and Wapato silty clay loam (Figure 8). In general, the Hoypus and Clallam soils are well drained, having formed in glacial till or glacial outwash, and are not considered hydric or wetland soils. McMurray peats, Mukilteo peats, and Semiahmoo muck primarily consists of very poorly drained organic soils that formed in partly decomposed woody and fibrous remains of trees and water -tolerant grasses, reeds, sedges, and shrubs. These soils are considered hydric. Wapato soils consist of poorly drained soils that formed in glaciofluvial or marine sediments. These soils are considered hydric (NRCS, 2021). Vegetation in the project area ranges from coniferous forest, to grazed pasture, to abandoned gravel quarry sites. The forested areas have an overstory of Douglas fir, with native rhododendron, salal, bracken fern, and numerous other species in the understory (Photo 8). Coniferous forest is located alo ng the western and northern perimeter of Wetland D, and west of the proposed wastewater treatment plant site. Grazed pasture is located at the south end of Wetland D (Photo 6). The location of the proposed wastewater treatment plant is a former gravel quarry that is devoid of vegetation except for some mowed grass (Photo 9). Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 17 April 2022 The percolation pond site (Photo 10) was used for quarry activities and consists of gravel areas, heavy equipment, and buildings. In 2011, very little vegetation was present, mainly non-native invasive species. In 2021, much of the area remains unvegetated or was overgrown with Himalayan blackberry. This area is east of Wetlands A and B and northeast of Wetland C. 6.0 PROJECT IMPACTS The project involves construction of a wastewater treat ment facility, groundwater percolation ponds, and an influent pipeline to convey wastewater flows to the treatment facility. Impacts of these facilities on wetlands are streams are described below and shown on Figure 9. The project has been designed to avo id direct impacts to wetlands and streams; however, some wetland buffer impacts and floodplain impacts are unavoidable as described below. 6.1 Wetland Buffer Impacts The project will have unavoidable impacts on the buffers of Wetlands C and D. The percolation pond will require grading in the buffer of Wetland C, and the influent pipeline to convey wastewater to the treatment facility will impact part of the buffer of Wetland D. The total area of buffer impact is approximately 1.17 acres (Table 12). The impacts are delineated as being within the inner 75 percent of the buffer width or the outer 25 percent of the buffer in accordance with JCC 18.22.960. Jefferson County regulates those buffer impacts as follows: “If a proposed activity is unavoidable and occurs within a wetland or the inner 75 percent of a wetland buffer the wetland report shall accompany either a financially bonded critical area stewardship plan or critical area variance application in JCC 18.22.250 or reasonable economic use exception in JCC 18.22.260.” Table 12. Wetland Buffer Impacts 6.1.1 Wetland C Buffer (Percolation Pond and Floodplain Excavation) Construction of the percolation pond will impact the buffer of Wetland C south of Lopeman Road (Figure 9). The impact occurs in the outer 25 percent of the buffer in an area that consists Wetland Impact Areas (acres) Inner 75% of Buffer Impact Areas (acres) Outer 25% of Buffer Total (acres) A 0 0 0 B 0 0 0 C 0 0.21 0.21 D 0.89 0.07 0.96 Total 0.89 0.28 1.17 Port Hadlock UGA Sewer Critical Areas Report and HMP Page 18 ESA April 2022 mainly of bare soil and invasive vegetation with scattered debris (old equipment and structures) (Photo s 10 and 12). The buffer will also be affected by a small amount of excavation (0.21 acre) needed to mitigate floodplain fill impacts as discussed be low in Section 6.3. Most of the disturbed buffer will be restored to pre-construction conditions after the pond is constructed, but a small sliver of the buffer at its outer edge (approximately 4,800 SF), will be permanently displaced by the percolation pond berm. 6.1.2 Wetland D Buffer (Wastewater Pipeline) To construct the influent wastewater pipeline from the wastewater treatment plant north to Ness' Corner Road, a roughly 25-foot-wide corridor will be cleared and graded through the northern portion of the buffer on the west side of Wetland D (Figure 9). Approximately 1,550 linear feet of the pipeline corridor is within the inner 75 percent of the buffer. Approximately 38 linear feet is within the outer 25 percent of the buffer. The influent pipeline has been sited to convey flow to the treatment plant by a force main. Efforts to locate the pipeline further west to reduce buffer impacts are not feasible due to steep site topography and property acquisition constraints (multiple private property owners). The corridor is designed to be as narrow as possible to minimize buffer impact s and still allow for pipeline construction and future maintenance access. The northern part of the buffer impact area is forested (Photos 8 and 11). The southern part of the buffer consists mostly of bare ground and grass associated with previous gravel mining operations (Photo 9). Construction of the pipeline requires that some native forest vegetation be permanently removed. Based upon preliminary tree survey information, 25 trees measuring at least 12-inches diameter at breast height (dbh) will be removed from the Wetland D buffer, plus some smaller-diameter woody vegetation that is greater than 20 feet tall. Trees will not be replanted over the pipeline following construction; instead the pipeline corridor will be reseeded and used as a grass-vegetated maintenance access route. To offset the buffer impacts, a portion of the southern buffer, closest to the treatment plant, will be planted with native trees and shrubs following construction (see mitigation discussion below). An additional portion of the Wetland D buffer, south of the treatment plant , will be cleared and filled to accommodate a gravel access road to the treatment plant . This impact is limited to a small sliver in the outer 25 percent of the buffer. This area (approximately 2,250 SF) will not be restored following construction because it will be displaced by the access road. 6.2 FWHCA Impacts The project will not directly affect Chimacum Creek and no construction will occur within its buffers. The project will also not directly affect Port Townsend Bay and no construction will occur within its buffers or within 150 feet of the shoreline of Port Townsend Bay. An approximately 250-foot long segment of 4-inch collection pipeline will be construct ed behind the cabins along Water Street. The construction will be located 210 feet or more from the OHWM of Port Townsend Bay and outside of the shoreline zone (Figure 12). As a result, the project will not affect the marine environment or any nearshore vegetation. Therefore, the project will not impact FHWCAs. Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 19 April 2022 6.3 Floodplain Impacts The mapped 100-year /1 percent chance floodplain of Chimacum Creek intersects a small part of the project area project south of Lopeman Road near the percolation pond (Figure 10). The floodplain extent in this location was refined using the County’s hydraulic model and topographic survey data and a small segment of the pond berm intersects the floodplain boundary. Approximately 50 cubic yards (CY) of fill for the berm will be placed within the floodplain, effectively reducing flood storage capacity by 50 cubic yards. This impact will be offset by excavating an equivalent volume of floodplain fill as described in the mitigation section below. The excavated area is approximately 0.21 acre and located at the edge of the Wetland C buffer. The County considers the entire floodplain area to be within the jurisdiction of the Shoreline Management Act and subject to JCC 18.25 shoreline r egulations. Therefore, the fill requires a shoreline substantial development permit. 6.3.1 Habitat Assessment Jefferson County Code (JCC 18.22.940) requires a habitat assessment for any project that occurs within a special flood hazard area (floodplain). The purpose of the habitat assessment is to assist the County in meeting the requirements and criteria of the Biological Opinion issued by the NMFS on September 22, 2008 pertaining to the effects of floodplain development on federally listed salmonid species. Requirements for the habitat assessment are described in a FEMA Region 10 guidance document entitled Regional Guidance for Floodplain Habitat Assessment (FEMA, 2011). According to the guidance document, a habitat assessment is not required if the project has undergone Section 7 consultation under the federal Endangered Species Act. The Port Hadlock project was reviewed under Section 7 in 2009/2010. A Biological Assessment (BA) was prepared which examined the projects effects of the project on listed salmonid species (ESA Adolfson, 2009). The BA made the following effects determinations: The overall effect determination for Coastal-Puget Sound DPS bull trout as a result of the proposed action is “no effect.” The overall effect determination for Puget Sound DPS steelhead as a result of the proposed action is “may affect, not likely to adversely affect.” The overall effect determination for Puget Sound ESU Chinook salmon as a result of the proposed action is “may affect, not likely to adversely affect.” The BA considered the effects of the project on the primary consistent elements for each of the listed species in the project vicinity. The vicinity (also called the action area) included the entire Port Hadlock-Irondale urban growth area, including all portions of Chimacum Creek within and downstream of the sewer service area as well as the marine waters within 200 feet of the Port Hadlock-Irondale urban growth area. The resulting effects determinations also assumed the application of certain construction measures and best management practices (BMPs) designed to mitigate adverse effects on the species and habitats in question. These construction practices and BMPs are still valid and will be implemented as the project is constructed. They include: Port Hadlock UGA Sewer Critical Areas Report and HMP Page 20 ESA April 2022 The proposed MBR technology will produce a high quality effluent and re sult in the conversion of residential and commercial septic drain fields to the proposed sewer system. The use of MBR treatment technology and UV light disinfection would not result in exceedences of water quality criteria within Chimacum Creek. No outfall to surface waters will occur as part of the proposed action. Once treated, the wastewater will meet Class A Reclaimed Water Standards with the primary goal of flow augmentation within Chimacum Creek. Reclaimed water will be directed to a rapid rate infiltration basin where it will percolate into the groundwater table and interact with surface waters of Chimacum Creek. The wastewater treatment plant will be designed to meet Class A Reclaimed Water Standards. In addition, and since effluent reuse will include percolation into the groundwater, a nitrogen removal process has been included within the secondary liquid stream treatment process. The proposed action will not require in-water work. The project proponent will employ TESC measures and appropriate BMPs to minimize and/or avoid potential for erosion, sedimentation, and turbidity during soil disturbing activities. The majority of site work will occur approximately 300 feet or more from the right bank of Chimacum Creek. All equipment and materials will be stored and staged within the construction footprint located approximately 300 feet or of more from the right bank of Chimacum Creek. Refueling will occur farther than 300 feet from any surface water feature, including the Chimacum Creek. All equipment operators will be trained in spill response and a Spill Prevention Plan will be prepared specifically for this project. Stormwater during construction will be treated on-site using methods consistent with the Ecology’s Stormwater Management Manual for Western Washington. Stormwater treatment will include infiltration of all stormwater runoff within a constructed stormwater pond. In addition, a Stormwater Pollution Prevention Plan (SWPPP) will be prepared to address stormwater issues during construction. Tree removal will be conducted a minimum of 300 feet from t he right bank of Chimacum Creek. The project proponent will employ TESC measures and appropriate BMPs to minimize and/or avoid potential for erosion, sedimentation, and turbidity during soil disturbing activities. No in-water work is required. All disturbed areas will either be reseeded or revegetated following construction or paved thereby eliminating any future potential for erosion of upland soils and subsequent sedimentation and turbidity issues to Chimacum Creek. The NMFS concurred with the effects determinations in a letter date d November 19, 2010 (NMFS Tracking No. 2010/05411). Since that time, certain elements of the project have been refined, but the basic scope and extent of the project are not materially different from what was previously analyzed. The BA described a pipeline crossing of Chimacum Creek, which is no longer part of the proposal. The BA did not specifically analyze the loss of 50 cubic yards of floodplain storage, as that feature was not part of the proposal in 2009. However, given the Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 21 April 2022 minimal nature of the proposed floodplain disturbance and the fact that the lost storage volume will be offset through excavation of an equivalent volume of floodplain material, we believe the previous effects determinations are still valid. The project will not adversely impact listed salmonid species. 7.0 MITIGATION PLAN This section describes efforts to avoid, minimize and compensate for critical area impacts. 7.1 Impact Avoidance and Minimization As required by Jefferson County (JCC 18.22.350), the project layout has been designed to avoid and minimize impacts on critical areas to the maximum extent possible. Impact avoidance and minimization measures include the following: The wastewater treatment plant site is an abandoned gravel quarry containing bare soils. Removal of native woody vegetation for the wastewater treatment plant construction is limited to a small area that is mostly outside of critical areas or buffers. Construction of the influent pipeline was designed to avoid direct impacts to wetlands and streams. The project was changed from a gravity pipeline to a force main which allowed more flexibility with pipe layout. The influent pipeline corridor has been sized to be the narrowest possible to allow construction and operation and maintenance of the pipeline. Efforts to locate the pipeline further west to reduce wetland buffer impacts are not feasible due to steep site topography and property acquisition constraints (multiple private property owners). The project has been sited outside of Chimacum Creek and its buffer . The percolation ponds have been designed and will be operated to mimic natural conditions and minimize hydrologic impacts. Shallow groundwater elevations may rise slightly, particularly following large precipitation events, providing additional water to the nearby wetlands and Chimacum Creek (HWA GeoSciences, 2012). Sharp spikes or declines in groundwater elevations are not anticipated. The proposed percolation pond sites are within a quarry area consisting of bare soils, weedy non-native vegetation, and debris such as old equipment and abandoned structures. The proposed project will remove old construction debris and concrete from the wetland buffer, followed by revegetation with native species. Construction would follow standard BMPs to protect streams, wetlands, water quality, and native vegetation near work areas as noted in Section 6.4 above. Port Hadlock UGA Sewer Critical Areas Report and HMP Page 22 ESA April 2022 7.1.1 Measures to Minimize Wildlife Disturbance Although the project includes many mea sures to avoid or minimize impacts, construction of the project would temporarily increase the levels of vehicle traffic, noise, dust, and human activity on the wastewater treatment plant, transmission pipe, and reclaimed water reuse sites . This would increase the level of disturbance to wildlife that use the onsite wetlands and buffer areas throughout the 18- to 24-month construction period. To minimize impacts on wildlife from nighttime noise and lighting, construction work could be limited to daylight hours. The work area would be clearly marked to prevent construction equipment and personnel from entering sensitive areas (wetlands, streams, and buffers). Any areas that are temporarily disturbed by construction equipment access but are not within the per manent footprint of the treatment plant or reclamation ponds, would be revegetated following construction to minimize erosion and invasion by weeds. 7.1.2 Water Quality Protection Measures As with any construction project involving heavy equipment and earth moving, there is the potential for erosion of exposed soils. If eroded sediments were to reach streams or wetlands, this could degrade water quality and habitat for aquatic species. Similarly, an accidental spill of fuel, hydraulic fluid, drilling fluid, or ot her toxic materials would degrade water quality if the material reached a surface water body. The construction contractor would be required to implement standard measures to control erosion and prevent accidental spills of toxic materials, in order to avoid and minimize potential impacts on water quality and aquatic habitat . Construction staging and fueling areas would be located well away from surface water bodies. 7.2 Compensatory Mitigation The County plans to compensate for unavoidable impacts of the wastewater treatment plant project as described below. A detailed mitigation plan, including planting layouts, plant schedules, and specifications, is shown in the Plan Set W-001 to W-106. The mitigation includes reseeding and replanting buffer areas affected by project construction. 7.2.1 Buffer Revegetation and Enhancement Mitigation for the Wetland C and D buffer impacts described above will occur in three areas as shown in Figure 9 and Plan Set Sheets W-001 to W-106. The total area of mitigation is 1.62 acres (Table 13), with an additional 1.51 acres to be reseeded with native seed mix. The area of buffer mitigation is 1.2 times the area of buffer impact. Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 23 April 2022 Table 13. Type and Amount of Compensatory Mitigation 7.2.1.1 Wetland C Jefferson County plans to revegetate a 0.21 acre area between Wetland C and Wetland A buffer as mitigation for areas affected by construction of the percolation pond to offset impacts (Plan Set Sheet W-105). Although there are no impacts to the Wetland A buffer, the County plans to plant this area of buffer along the east edge of the wetland to improve buffer conditions and increase protection of the adjacent wetland. The plant pallet consists of red alder, big-leaf maple, Douglas-fir, Western red cedar, vine maple, serviceberry, red twig dogwood, oceanspray, red flowering currant, Nootka rose, common sno wberry, Oregon grape, sword fern and salal. Trees and shrubs will be 1-gallon containers planted on 5- to 8-foot centers. Pacific willow and Sitka willow live stakes will be planted on 2-foot centers. The planting will occur where there is currently no functioning buffer because of past vegetation removal and site disturbance. Additionally, a 26,340 SF area of the Wetland C buffer area that is currently mostly devoid of native vegetation will be reseeded with a native seed mix composed of: 35% perennial rye 10% annual rye 35% creeping red fescue 10% highland bentgrass 10% red clover The seeding will stabalize soils, improve wildlife habitat and help slow/impede the introduction of sediments and nutrients into the adjacent wetland. A small sliver of the affected buffer (roughly 4,800 SF) will not be revegetated because it will become part of the pond berm. 7.2.1.2 Wetland D Following installation of the influent pipeline, the pipeline corridor within the Wetland D buffer would be restored. Concrete fill and debris will be removed and the cleared area (39,690 SF) would be seeded with the same native grass seed mix used in the Wetland C buffer. The reseeded area will be used occasionally for maintenance access. Tree planting within the pipeline corridor is not possible because of concerns about tree roots compromising the integrity of the pipe and because County crews will need periodic vehicular access for pipeline maintenance. Wetland Areas to be Seeded (acres) Area to be Replanted (acres) Total Area (acres) C 0.60 0.21 0.81 D 0.91 1.41 2.32 Total 1.51 1.62 3.13 Port Hadlock UGA Sewer Critical Areas Report and HMP Page 24 ESA April 2022 A portion (61,380 SF) of buffer area outside of the access route corridor will be planted with native woody vegetation to improve and enhance buffer functions. The plant pallet consists of red alder, big-leaf maple, Douglas-fir, Western red cedar, vine maple, serviceberry, red twig dogwood, oceanspray, red flowering currant, Nootka rose, common snowberry, Oregon grape, sword fern and salal. Trees and shrubs will be 1-gallon containers planted on 5- to 8-foot centers. Pacific willow and Sitka willow live stakes will be planted on 2-fo ot centers. The planting will occur where there is currently no functioning buffer because of past vegetation removal and site disturbance. Installing conifers and other native vegetation in areas consisting of bare ground and grass will improve wildlife habitat and provide screening between the new wastewater facilities and Wetland D. Tree replacement will be at a 2:1 ratio. This mitigation will offset project impacts and enhance the overall buffer function. 7.2.2 Floodplain Mitigation As noted in Section 6.3 above, a portion of the percolation pond berm will be located within the floodplain. To offset the addition of 50 cubic yards of floodplain fill, the County will excavate an equivalent volume of material (approximately 54 cubic yards) from the floodplain. As a result, the project will balance cut and fill within the floodplain and create a similarly sized flood storage area. The excavation area will be approximately 9,313 SF (0.21 acre) and located occur near the edge of the Wetland C buffer, near the outer edge of the pond berm. The existing surface will be lowered to generally match the elevation of the adjacent buffer area (approximately 89 feet). The County will design the excavation area to maintain connectivity to the floodplain and prevent potential for fish stranding. 8.0 GOALS, OBJECTIVES, AND PERFORMANCE STANDARDS This section provides goals, objectives, and performance standards for the mitigation project . The goal of the mitigation is to revegetate disturbed buffer areas to offset unavoidable impacts and improve overall wetland buffer functions. This is assumed to occur through achievement of the following objectives (see Plan Set W-001 through W-106): Enhance poorly vegetated areas of the Wetland A buffer by planting native trees and shrubs to improve buffer functions; Restore disturbed areas of the Wetland C bu ffer by reseeding with native grass seed; Restore and enhance the Wetland D buffer by planting the pipeline corridor with native grass species; and Replant and enhance poorly vegetated areas of the Wetland D buffer by planting native trees and shrubs to improve buffer functions. The mitigation areas will be monitored for success for 5 years following complete installation per Jefferson County requirements (JCC 18.22.950(h)). Specific performance standards and success criteria have been developed to determine whether the mitigation plan has met these Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 25 April 2022 goals and objectives. The mitigation plan will be deemed successful if the performance standards and success criteria shown in Table 14 have been met. Performance standards have been provided for Years 1, 3, a nd 5 of the monitoring period. During Years 2 and 4, no formal standards are proposed; however, informal monitoring will be performed to ensure that maintenance occurs as needed between formal monitoring years . Table 14. Performance Standards for Port Hadlock Wastewater Treatment Plant Mitigation Project Performance Standards Year 1 Year 3 Year 5 Installed plant survival: 100% survival of installed woody plants. Native plant cover: 30% areal cover by native vegetation (including both installed and volunteer species). Native plant cover: 50% areal cover by native vegetation (including both installed and volunteer species). Invasive vegetation: Less than 20% cover of non -native invasive vegetation, including but not limited to species on the Jefferson County noxious weed list. Invasive vegetation: Same as Year 1. Invasive vegetation: Same as Year 1. 9.0 LIMITATIONS Within the limitations of schedule, budget, scope-of-work, and seasonal constraints, we warrant that this study was conducted in accordance with generally accepted environmental science practices, including the technical guidelines and criteria in effect at the time this study was performed, as outlined in the Methods section. The results and conclusions of this repo rt represent the authors’ best professional judgment, based upon information provided by the project proponent in addition to that obtained during the course of this study. No other warranty, expressed or implied, is made. Port Hadlock UGA Sewer Critical Areas Report and HMP Page 26 ESA April 2022 10.0 REFERENCES Ames, J., G. Graves and C. Weller. 2000. Summer Chum Salmon Conservation Initiative An Implementation Plan to Recover Summer Chum in the Hood Canal and Strait of Juan de Fuca Region. Washington State Department of Fish and Wildlife and Point No Point Treaty Tribes. Olympia, Washington. Brinson, M. August 1993. A Hydrogeomorphic Classification for Wetlands. U.S. Army Corps of Engineers, Wetlands Research Program. Corps (U.S. Army Corps of Engineers). 2005. Regulatory Guidance Letter No. 05-05: Ordinary High Water Mark Identification. December 7, 2005. Corps (U.S. Army Corps of Engineers). 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region. Version 2. Wetlands Regulatory Assistance Program. May 2010. ERDC/EL TR-10-3. https://usace.contentdm.oclc.org/utils/getfile/collection/p266001coll1/id/7646. Corps (U.S. Army Corps of Engineers). 2018. NWPL - National Wetland Plant List. Available: https://cwbi-app.sec.usace.army.mil/nwpl_static/v34/home/home.html. Accessed August 9, 2021. Correa, G. 2002. Salmon and Steelhead Habitat Limiting Factors Water Resource Inventory Area 17 Quilcene-Snow Basin, Final Report. Washington State Conservation Commission. Olympia, Washington. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. FWS/OBS-79/31. U.S. Fish and Wildlife Service. Ecology (Washington State Department of Ecology). 1991. Shoreline Management Handbook: First Edition. Publication No. 90-45. Olympia, Washington. Ecology (Washington State Department of Ecology). 1992. The Growth Management Act and the State Environmental Policy Act: A Guide to Interrelationships. Publication No. 92-07. Olympia, Washington. Ecology (Washington State Department of Ecology). 1994. Wetlands Regulations Guidebook. Publication No. 88-5. Olympia, Washington. Ecology (Washington State Department of Ecology). 1997. Washington State Wetlands Identification and Delineation Manual. Publication No. 96-94. Olympia, Washington. Ecology (Washington State Department of Ecology), U.S. Army Corps of Engineers Seattle District, and U.S. Environmental Protection Agency Region 10 . 2021. Wetland Mitigation in Washington State, Part 1: Agency Policies and Guidance. Version 2, April 2021. Publication # 21-06-003. Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 27 April 2022 Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1. U.S. Army Engineer Waterways Experiment Station, Vicksburg, Massachusetts. EPA (Environmental Protection Agency) and Corps (US Army Corps of Engineers). June 5, 2007. Clean Water Act Jurisdiction Following the US Supreme Court’s Decision in Rapanos v. United States & Carabell v. United States. ESA Adolfson. 2009. Port Hadlock UGA Sewer System Biological Assessment and Essential Fish Habitat Assessment. May 2009. Federal Register. 1982. Title 33: Navigation and Navigable Waters; Chapter II, Regulatory Programs of the Corps of Engineers. Vol. 47, No. 138, p. 31810. U.S. Government Printing Office, Washington, DC. Federal Register. 1986. 33 CFR Parts 320 through 330: Regulatory Programs of the Corps of Engineers; Final Rule. Vol. 51, No. 219, pp. 41206-41260. U.S. Government Printing Office, Washington, DC. Federal Register. 1988. 40 CFR Part 230. Guidelines for Specification of Disposal Sites for Dredged or Fill Material. Vol. 45, No. 249, Pages 85336-85357. U.S. Government Printing Office, Washington, DC. Federal Register. 1994. Changes in Hydric Soils of the United States. July 13. Washington, DC. Frostholm, Donna. Biologist, Jefferson County. Onsite meeting with ESA to review wetland boundary and wetland ratings. June 8, 2011. Jefferson County. 2010. Non-Motorized Transportation and Recreational Trails Plan. Available at: https://www.co.jefferson.wa.us/440/Non-Motorized-Transportation-Recreationa. Accessed September 20, 2021. Jefferson County. 2021. Public Land Records. Available at: https://gisweb.jeffcowa.us/LandRecords/. Accessed August 4, 2021. Hruby, T. 2014. Washington State Wetland Rating System for Western Washington – Revised. October 2014. Ecology publication number 14-06-029. Olympia, WA. HWA GeoSciences, Inc. 2007. Schold Site – Hydrogeological Evaluation, Jefferson County Department of Public Works, Port Hadlock and Irondale Area Comprehensive Sewer Plan, Jefferson County, Washington. Prepared for Tetra Tech Engineering and Architecture Services. HWA GeoSciences, Inc. 2012. Hydrogeologic Evaluation Port Hadlock UGA Sewer System Port Hadlock, Washington. Prepared for Tetra Tech, Inc. Engineering and Architecture Services. June 21, 2012. Munsell Color. 2000. Munsell Soil Color Charts. GretagMacbeth, New Windsor, New York. Port Hadlock UGA Sewer Critical Areas Report and HMP Page 28 ESA April 2022 NRCS (Natural Resources Conservation Service). 2010. Field Indicators of Hydric Soils in the United States - A Guide for Identifying and Delineating Hydric Soils. Version 7.0, 2010. Available: ftp://ftp-fc.sc.egov.usda.gov/NSSC/Hydric_Soils/FieldIndicators_v7.pdf. Tetra Tech. 2021. Jefferson County Port Hadlock UGA Sewer Facility Plan, Update. Final. February 2021. Prepared on behalf of Jefferson County. Available: https://actionagenda.pugetsoundinfo.wa.gov/Project/Detail/13409. USFWS (U.S. Fish and Wildlife Service). 1988. National List of Plant Species that Occur in Wetlands: Northwest (Region 9). Biol. Rpt. 88(26.9). United States Department of Interior, Washington, DC. USFWS (U.S. Fish and Wildlife Service). 1993. 1993 Supplement to List of Plant Species that Occur in Wetlands: Northwest (Region 9). USFWS. 2021. National Wetlands Inventory – online wetlands mapping. Available: http://www.fws.gov/wetlands/Data/Mapper.html. Accessed August 2021. Vepraskas, M.J. 1999. Redoximorphic Features for Identifying Aquic Conditions. Technical Bulletin 301. North Carolina Agricultural Research Service, North Carolina State University, Raleigh, North Carolina. WDFW (Washington State Department of Fish and Wildlife). 2021. PHS on the Web. Available at: http://apps.wdfw.wa.gov/phsontheweb/. Accessed August 4, 2021. WDNR (Washington Department of Natural Resources). 2021. Washington Natural Heritage Program Element Occurrences. Data current as of August 6, 2021. Available: https://www.dnr.wa.gov/NHPdata. Accessed August 2011. Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page 29 April 2022 FIGURES AND PHOTOGRAPHS Port Hadlock UGA Sewer System. 208327.01 Figure 1 Vicinity Map Port Hadlock Jefferson County, Washington SOURCE: ESRI, 2005; Jefferson County, 2007. P o r t To w n s e n d B a y Anderson Lake Chi macum Creek?§ ?§ Irondale Rd F la g le r R d CHIMACUM PORT HADLOCK IRONDALE Indian Island US Navy Reserves Lopeman Rd ?Î Chimacum RdClallam County Kitsap County Jefferson County U 0 0.25 0.5 Miles Legend UGA Boundary Populated Places Rivers Streams Major Roads Streets Parcels Lakes Parks Wastewater Treatment Plant Site Reclaimed Water Reuse Site Path: S:\GIS\Projects\208xxx\208327_PortHadlock_Sewer_System\Projects\Fig01_Vicinity_Map.mxd (MJL, 7/13/2011)Port Hadlock UGA Sewer System Figure 1 Vicinity Map SOURCE: ESRI, 2005; Jefferson County, 2007Z:\Shared\Projects\00 - Legacy Firm - Ofce\NW\Seattle\WATER RESOURCES\2008 Projects\208327_Port_Hadlock_Sewer_System\05_Graphics_GIS_Modeling\Figures\Illustrator I r o n d a l e - P o r t H a d l o c k U G AIrondale - P o r t H a d l o c k U G A Jefferson County, WA., Pro-West & Associates, Inc., Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRC AN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), swisstopo, © OpenStreetMap contributors, and the GIS User Community Legend Urban Growth Area (UGA) Service Core Boundary Proposed Pressure Sewer Existing Pressure Sewer PT HADLOCK CS PIPING PT HADLOCK WWT PLANT PT HADLOCK WWT PIPING Transportation - Road Centerlines DNR Water Body Type 1-9 Parcels ± 0 0.5 10.25 Miles 1:24,0000 Port Hadlock UGA Sewer System Figure 2 Urban Growth Boundary, Core Service Area and Collection System Piping SOURCE: ESA, 2016Z:\Shared\Projects\00 - Legacy Firm - Ofce\NW\Seattle\WATER RESOURCES\2008 Projects\208327_Port_Hadlock_Sewer_System\05_Graphics_GIS_Modeling\Figures\Illustrator Port Hadlock UGA Sewer System Figure 3 Chimacum Creek and Wetlands A, B, C SOURCE: ESA, 2011; Jefferson County, 2010; Aerial Express, 2009Z:\Shared\Projects\00 - Legacy Firm - Ofce\NW\Seattle\WATER RESOURCES\2008 Projects\208327_Port_Hadlock_Sewer_System\05_Graphics_GIS_Modeling\Figures\Illustrator106085. 24WB W L F D 3 0 106185. 48WB W L F D 3 1 106287. 56WB W L F D 3 2 106386. 76WB W L F D 3 3 106486. 42WB W L F D 3 4 106585. 46WB W L F D 3 5 109286. 65WBW LF B1 109385. 96WBW LF BB1 109483. 31WBW LF BB2 109584. 72WBW LF BB3 109688. 61WBW LF BB4 109787. 40WBW LF BB5 109886. 81WBW LF BB6 109992. 79WBW LF BB7 110089. 30WBW LF BB8 110186. 11WBW LF BB9 110284. 95WBW LF BB10 110382. 17WBW LF BB11 110485. 53WBW LF BB12 110585. 26WBW LF BB13 110686. 19WBW LF BB14 110785. 40WBW LF BB15 110889. 54WBW LF BB16 110979. 71WBW LF BB17 111086. 05WBW LF BB18 111185. 25WBW LF B18 111282. 61WBW LF B17 111384. 23WB W L F D P 3 111485. 83WB W L F D P 4 111689. 04WBW LF C28 111789. 15WB W L F C 2 7 111888. 61WBW LF C26 111992. 54WB W L F C 2 5 112087. 96WB W L F C 2 4 112190. 30WBW LF C21 112288. 31WBW LF C20 112384. 94WBW LF C22 112490. 80WB W L F C 2 3 112588. 27WB W L F C 1 9 112688. 86WB W L F C 1 8 112786. 42WBW LF C17 112889. 28WBW LF C16 112990. 20WB W L F C 1 6 113090. 82WBW LF C15 113188. 64WBW LF C13 113289. 75WBW LF C12 113386. 31WB W L F C 1 1 113486. 37WBW LF C10 113590. 39WB W L F C 9 113688. 48WB W L F C 8 113785. 42WB W L F C 6 113887. 43WB W L F C 7 113988. 23WB W L F C 5 114087. 24WB W L F C 4 114186. 15WB W L F C 3 114286. 65WB W L F C 2 114485. 01WB W L F C 1 1012109. 70BL OH 1013110. 24BL OH 1014103. 95BL OH 101595. 45BLFTPR 101696. 04BLFTPR 101795. 85BLFTPR 190887. 27GTPZ SP- 3190985. 38WB E W 191086. 62WBW LF B9 191186. 87WBW LF B10 191287. 71WBW LF B11 191388. 29WBW LF B12 191487. 01WBW LF B13 191587. 39WB W L F B 1 4 191686. 34WBW LF B15 191786. 22WBW LF B16 191886. 55WBW LF B8 191986. 96WBW LF B7 192086. 93WBW LF B6 192186. 10WB W L F B 5 192286. 90WBW LF B4 192386. 45WBW LF B3 192486. 54WBW LF B2 192586. 91WBW LF A8 192686. 41WBW LF A9 192787. 13WBW LF A10 192887. 44WBW LF A11 192987. 66WBW LF 8AA 193088. 13WB W L F 7 A A 193188. 27WBW LF 6AA 193287. 24WB W L F 5 A A 193387. 01WBW LF 4AA 193486. 90WBW LF 3AA 193587. 13WBW LF 2AA 193686. 42WBW LF 1AA 193786. 52WB W L F A 1 193886. 47WB W L F A 2 193986. 64WB W L F A 3 194086. 63WB W L F A 4 194186. 60WBW LF A5 194287. 45WBW LF A6 194387. 34WB W L F A 7 194486. 69WBW LF DP- 1 194587. 30WBW LF DP- 2 194687. 20WBW LF DP- 6 194786. 10WBW LF DP- 5 194886. 47WBW LF C- 14 PZ SP -3 WATER ELE VATIO N A T 10:30AM ON 2011-06- 16EL=85.38' DP- 4 DP- 3 DP- 2 DP- 1 DP- 5 DP- 6 nm nm nm nm nm nm nmnmnm nm nm nm nm nm nm nm nmnm nm nmnm nm nmnm nmnm nmnmnm nm nm nm nm nm nmnmnmnmnm nmnmnm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nmnm nmnm nm nm nmnm nm nm nm nmnmnmnmnm nmnmnmnmnmnmnm nm nm nm nm nm nm nm nm nm nmnmnmnm nmnmnmnmnmnm nmnm nmnmnm nm Lopeman Rd Chimacum Rd P omwell Rd Old Hadlock Rd Elkins R d Wetland C Wetland B Wetland A Port Hadlock Sewer System . 208327 Figure 3 Wetlands A,B,C Port Hadlock WWTP Jefferson County, Washington SOURCE: ESA, 2011; Jefferson County, 2010; Aerials Express, 2009 0 150 Feet Chimacum Creek Wetland extends off-site Wetland extends off-site 150' wetland buffer 80' wetland buffer Legend Chimacum Creek nm Wetland Flags Surveyed CAD Line Wetland Polygon Project Area Approximate Wetland Boundary Wetland Buffers Roads Parcels Path: S:\GIS\Projects\208xxx\208327_PortHadlock_Sewer_System\Projects\Fig01_Wetlands_ABC_Survey.mxd (MJL; 6/20/2011)Wetland Buffers: Wetland A: 80' Wetland B: 80' Wetland C: 150' stream continues off-site stream continues off-site Chimacum Creek and 106085. 24WB W L F D 3 0 106185. 48WB W L F D 3 1 106287. 56WB W L F D 3 2 106386. 76WB W L F D 3 3 106486. 42WB W L F D 3 4 106585. 46WB W L F D 3 5 109286. 65WBW LF B1 109385. 96WBW LF BB1 109483. 31WBW LF BB2 109584. 72WB W L F B B 3 109688. 61WBW LF BB4 109787. 40WBW LF BB5 109886. 81WBW LF BB6 109992. 79WBW LF BB7 110089. 30WBW LF BB8 110186. 11WBW LF BB9 110284. 95WBW LF BB10 110382. 17WBW LF BB11 110485. 53WBW LF BB12 110585. 26WBW LF BB13 110686. 19WBW LF BB14 110785. 40WBW LF BB15 110889. 54WB W L F B B 1 6 110979. 71WBW LF BB17 111086. 05WBW LF BB18 111185. 25WBW LF B18 111282. 61WBW LF B17 111384. 23WB W L F D P 3 111485. 83WB W L F D P 4 111689. 04WB W L F C 2 8 111789. 15WB W L F C 2 7 111888. 61WB W L F C 2 6 111992. 54WB W L F C 2 5 112087. 96WB W L F C 2 4 112190. 30WBW LF C21 112288. 31WB W L F C 2 0 112384. 94WB W L F C 2 2 112490. 80WB W L F C 2 3 112588. 27WB W L F C 1 9 112688. 86WB W L F C 1 8 112786. 42WB W L F C 1 7 112889. 28WBW LF C16 112990. 20WB W L F C 1 6 113090. 82WB W L F C 1 5 113188. 64WB W L F C 1 3 113289. 75WBW LF C12 113386. 31WB W L F C 1 1 113486. 37WBW LF C10 113590. 39WB W L F C 9 113688. 48WB W L F C 8 113785. 42WB W L F C 6 113887. 43WB W L F C 7 113988. 23WB W L F C 5 114087. 24WB W L F C 4 114186. 15WB W L F C 3 114286. 65WB W L F C 2 114485. 01WB W L F C 1 1012109. 70BL OH 1013110. 24BL OH 1014103. 95BL OH 101595. 45BLFTPR 101696. 04BLFTPR 101795. 85BLFTPR 190887. 27GTPZ SP- 3190985. 38WB E W 191086. 62WBW LF B9 191186. 87WBW LF B10 191287. 71WBW LF B11 191388. 29WBW LF B12 191487. 01WBW LF B13 191587. 39WBW LF B14 191686. 34WBW LF B15 191786. 22WB W L F B 1 6 191886. 55WBW LF B8 191986. 96WBW LF B7 192086. 93WBW LF B6 192186. 10WB W L F B 5 192286. 90WBW LF B4 192386. 45WBW LF B3 192486. 54WBW LF B2 192586. 91WBW LF A8 192686. 41WBW LF A9 192787. 13WBW LF A10 192887. 44WBW LF A11 192987. 66WB W L F 8 A A 193088. 13WB W L F 7 A A 193188. 27WBW LF 6AA 193287. 24WB W L F 5 A A 193387. 01WBW LF 4AA 193486. 90WBW LF 3AA 193587. 13WBW LF 2AA 193686. 42WBW LF 1AA 193786. 52WB W L F A 1 193886. 47WB W L F A 2 193986. 64WBW LF A3 194086. 63WB W L F A 4 194186. 60WBW LF A5 194287. 45WBW LF A6 194387. 34WB W L F A 7 194486. 69WBW LF DP- 1 194587. 30WBW LF DP- 2 194687. 20WBW LF DP- 6 194786. 10WBW LF DP- 5 194886. 47WBW LF C- 14 PZ SP -3 WATER ELE VATIO N A T 10:30AM ON 2011-06- 16 EL=85.38' DP- 4 DP- 3 DP- 2 DP- 1 DP- 5 DP- 6 nmnm nm nm nm nm nmnmnm nm nm nm nm nm nm nm nmnm nm nmnm nm nmnm nmnm nmnmnm nm nm nm nm nm nmnmnmnmnm nmnmnm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nmnm nmnm nm nm nmnm nm nm nm nmnmnmnmnm nmnmnmnmnmnmnm nm nm nm nm nm nm nmnm nm nmnmnmnm nmnmnmnmnmnm nmnm nmnmnm nm Lopeman Rd Chimacum Rd P omwell Rd Old Hadlock Rd Elkins R d Wetland C Wetland B Wetland A Port Hadlock Sewer System . 208327 Figure 3 Wetlands A,B,C Port Hadlock WWTP Jefferson County, Washington SOURCE: ESA, 2011; Jefferson County, 2010; Aerials Express, 2009 0 150 Feet Chimacum Creek Wetland extends off-site Wetland extends off-site 150' wetland buffer 80' wetland buffer Legend Chimacum Creek nm Wetland Flags Surveyed CAD Line Wetland Polygon Project Area Approximate Wetland Boundary Wetland Buffers Roads Parcels Path: S:\GIS\Projects\208xxx\208327_PortHadlock_Sewer_System\Projects\Fig01_Wetlands_ABC_Survey.mxd (MJL; 6/20/2011)Wetland Buffers: Wetland A: 80' Wetland B: 80' Wetland C: 150' stream continues off-site stream continues off-site Chimacum Creek and nm nmnmnm nm nm nm nmnm nmnm nm nm nm nm nm nm nm nm nm nm nmnm nm nmnm nm nm nmnm nmnmnmnm nmnm nmnm nm N e s s ' C o rn e r Quimper Ln Blanche Av Old Hadlock Rd Morrissey Av Cedar Av Christney RdSOURCE: ESA, 2011; Jefferson County, 2010; Aerials Express, 2009 150' wetland buffer Legend Project Area Surveyed Wetland Boundary Line nm Wetland Flags Approximate Wetland Boundary Wetland Buffer (150') Roads Parcels \\azr-file01\GIS_SHARE\GIS\GIS\Projects\208xxx\208327_PortHadlock_Sewer_System\MXDs\Fig06_Wetland_D_Survey.mxd (ATR; 3/15/2022)Wetland Buffers: Wetland D: 150' ¯ 0 150 300 Feet Wetland D Wetland Extends Off-Site Wetland Extends Off-Site Port Hadlock UGA Sewer System .208327.014Figure Wetland D Port Hadlock WWTP Jefferson County,Washington nm nmnmnm nm nm nm nmnm nmnm nm nm nm nm nm nm nm nm nm nm nmnmnmnmnm nm nm nmnm nmnmnmnm nmnm nmnm nm N e s s ' C o rn e r Quimper Ln Blanche Av Old Hadlock Rd Morrissey Av Cedar Av Christney RdSOURCE: ESA, 2011; Jefferson County, 2010; Aerials Express, 2009 150' wetland buffe r Legend Project Area Surveyed Wetland Boundary Line nm Wetland Flags Approximate Wetland Boundary Wetland Buffer (150') Roads Parcels \\azr-file01\GIS_SHARE\GIS\GIS\Projects\208xxx\208327_PortHadlock_Sewer_System\MXDs\Fig06_Wetland_D_Survey.mxd (ATR; 3/15/2022)Wetland Buffers : Wetlan d D: 150' ¯ 0 150 300 Feet Wetland D Wetland Extends Off-Site Wetland Extends Off-Site Port Hadlock UGA Sewer System .208327.014Figure Wetland D Port Hadlock WWTP Jefferson County,Washington Port Hadlock UGA Sewer System Figure 4 Wetland D SOURCE: ESA, 2011; Jefferson County, 2010; Aerial Express, 2009Z:\Shared\Projects\00 - Legacy Firm - Ofce\NW\Seattle\WATER RESOURCES\2008 Projects\208327_Port_Hadlock_Sewer_System\05_Graphics_GIS_Modeling\Figures\Illustrator Esri, HERE, Garmin, (c) OpenStreetMap contributors, and the GIS user community, Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community Legend Critical Aquifer Recharge Area Service Core Boundary Proposed Pressure Sewer Existing Pressure Sewer PT HADLOCK WWT PLANT PT HADLOCK WWT PIPING PT HADLOCK CS PIPING ± 0 0.25 0.50.125 Miles 1:12,0000 Port Hadlock UGA Sewer System Figure 5 Critical Aquifer Recharge Areas SOURCE: Tetra TechZ:\Shared\Projects\00 - Legacy Firm - Ofce\NW\Seattle\WATER RESOURCES\2008 Projects\208327_Port_Hadlock_Sewer_System\05_Graphics_GIS_Modeling\Figures\Illustrator Esri, HERE, Garmin, (c) OpenStreetMap contributors, and the GIS user community, Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community Legend Seismic Hazard Service Core Boundary Proposed Pressure Sewer Existing Pressure Sewer PT HADLOCK WWT PLANT PT HADLOCK WWT PIPING PT HADLOCK CS PIPING ± 0 0.25 0.50.125 Miles 1:12,0000 Port Hadlock UGA Sewer System Figure 6 Seismic Hazard Areas SOURCE: Tetra TechZ:\Shared\Projects\00 - Legacy Firm - Ofce\NW\Seattle\WATER RESOURCES\2008 Projects\208327_Port_Hadlock_Sewer_System\05_Graphics_GIS_Modeling\Figures\Illustrator Esri, HERE, Garmin, (c) OpenStreetMap contributors, and the GIS user community, Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community Legend Landslide Hazard Service Core Boundary Proposed Pressure Sewer Existing Pressure Sewer PT HADLOCK WWT PLANT PT HADLOCK WWT PIPING PT HADLOCK CS PIPING ± 0 0.25 0.50.125 Miles 1:12,0000 Port Hadlock UGA Sewer System Figure 7 Landslide Hazard Areas SOURCE: Tetra TechZ:\Shared\Projects\00 - Legacy Firm - Ofce\NW\Seattle\WATER RESOURCES\2008 Projects\208327_Port_Hadlock_Sewer_System\05_Graphics_GIS_Modeling\Figures\Illustrator Port Hadlock UGA Sewer System.208327.01 Figure 8 Floodplains, Wetlands and Streams Port Hadlock Jefferson County, Washington SOURCE: ESRI, 2005; Jefferson County, 2007; USFWS, 2007, FEMA, 2008. Port Townsend Bay Chimacum Creek ?§ ?§ Irondale Rd Flagler RdCHIMACUM PORT HADLOCK IRONDALE Lopeman Rd ?Î Chimacum RdU 0 0.25 0.5 Miles Path: S:\GIS\Projects\208xxx\208327_PortHadlock_Sewer_System\Projects\Fig08_Floodplains_Wetlands.mxd (MJL, 7/18/2011)Wastewater Treatment t SitePlan Reclaimed Water Reuse Site NWI Wetlands Streams Major Roads Streets Parcels Lakes Legend Populated Places UGA Boundary County Wetlands 1% Chance Annual Flood Port Hadlock UGA Sewer System.208327.01 Figure 8 Floodplains, Wetlands and Streams Port Hadlock Jefferson County, Washington SOURCE: ESRI, 2005; Jefferson County, 2007; USFWS, 2007, FEMA, 2008. Port Townsend Bay Chimacum Creek ?§ ?§ Irondale Rd Flagler RdCHIMACUM PORT HADLOCK IRONDALE Lopeman Rd ?Î Chimacum RdU 0 0.25 0.5 Miles Path: S:\GIS\Projects\208xxx\208327_PortHadlock_Sewer_System\Projects\Fig08_Floodplains_Wetlands.mxd (MJL, 7/18/2011)Wastewater Treatment t SitePlan Reclaimed Water Reuse Site NWI Wetlands Streams Major Roads Streets Parcels Lakes Legend Populated Places UGA Boundary County Wetlands 1% Chance Annual Flood Port Hadlock UGA Sewer System Figure 8 Floodplains, Wetlands and Stream SOURCE: ESRI, 2005; Jefferson County, 2007; USFWS, 2007; FEMA, 2008Z:\Shared\Projects\00 - Legacy Firm - Ofce\NW\Seattle\WATER RESOURCES\2008 Projects\208327_Port_Hadlock_Sewer_System\05_Graphics_GIS_Modeling\Figures\Illustrator Port Hadlock UGA Sewer System . 208327.01 Figure Soils Map Jefferson County, Washington SOURCE: Tetra Tech, 2008. Wastewater Treatment Plant Site Pipeline Reclaimed Water Reuse Site FILE NAME: Fig05_SoilTypes.ai / EIDCREATED BY: JAB / DATE LAST UPDATED: 07/13/119 Port Hadlock UGA Sewer System Figure 9 Soils Map SOURCE: Tetra Tech, 2008Z:\Shared\Projects\00 - Legacy Firm - Ofce\NW\Seattle\WATER RESOURCES\2008 Projects\208327_Port_Hadlock_Sewer_System\05_Graphics_GIS_Modeling\Figures\Illustrator Port Hadlock UGA Sewer System Figure 10 Impacts and Mitigation SOURCE: TetraTechZ:\Shared\Projects\00 - Legacy Firm - Ofce\NW\Seattle\WATER RESOURCES\2008 Projects\208327_Port_Hadlock_Sewer_System\05_Graphics_GIS_Modeling\Figures\Illustrator Port Hadlock UGA Sewer System Figure 11 Floodplain Impacts and Mitigation SOURCE: TetraTechZ:\Shared\Projects\00 - Legacy Firm - Ofce\NW\Seattle\WATER RESOURCES\2008 Projects\208327_Port_Hadlock_Sewer_System\05_Graphics_GIS_Modeling\Figures\Illustrator Esri, HERE, Garmin, (c) OpenStreetMap contributors, and the GIS user community, Jefferson County, WA., Pro- West & Associates, Inc., Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN , and the GIS User Community Legend SMP - Shoreline Environmental Design ations Aquatic Priority Aqua tic Conservancy High Intensity NA Natural Shoreline Residential Service Core Boundary Proposed Pressure Sewer Existing Pressure Sewer PT HADLOCK WWT PLANT PT HADLOCK WWT PIPING PT HADLOCK CS PIPING ± 0 0.25 0.50.125 Miles 1:12,0000 Port Hadlock UGA Sewer System Figure 12 Shoreline Environment Designations SOURCE: Tetra TechZ:\Shared\Projects\00 - Legacy Firm - Ofce\NW\Seattle\WATER RESOURCES\2008 Projects\208327_Port_Hadlock_Sewer_System\05_Graphics_GIS_Modeling\Figures\Illustrator GENERAL PLANTING NOTES:1.APPLY TOPSOIL TO ALL LANDSCAPED AREAS SHOWN ON PLANS ASOUTLINED IN SPECIFICATION SECTION 32 91 13 "SOIL PREPARATION".2.APPLY SPECIFIED MULCH AS A TOP DRESSING TO A DEPTH OF 3" FOR ALLPLANTING BEDS.3.ALL AREAS THAT ARE DISTURBED DUE TO CONTRACTOR ACTIVITIES BEYONDAREAS SHOWN ON PLANS SHALL BE EITHER HYDROSEEDED WITH SPECIFIEDNATIVE FIELD GRASS MIX OR TOP DRESSED WITH SPECIFIED MULCH TOMATCH EXISTING CONDITIONS.4.FINISH GRADES IN PLANTING BEDS SHALL BE 1" MINIMUM BELOW ADJACENTGRAVEL SURFACES.5.TREES ARE TO BE SPACED AS SHOWN ON PLAN.6.NATIVE FIELD GRASS SEED MIX TO BE AS FOLLOWS:35% PERENNIAL RYE10% ANNUAL RYE35% CREEPING RED FESC10% HIGHLAND BENTGRASS10% RED CLOVERWETLAND MITIGATION PLANT SCHEDULETREESSYMBOLBOTANICAL NAMECOMMON NAMEQTYCONDREMARKSDETAILACER CIRCINATUMVINE MAPLE401 GALMULTI-STEMMEDFROM CONTAINER1 / W-002ACER MACROPHYLLUMBIGLEAF MAPLE461 GAL1 / W-002ALNUS RUBRARED ALDER441 GAL1 / W-002PINUS CONTORTASHORE PINE451 GAL1 / W-002PSEUDOTSUGA MENZIESIIDOUGLAS FIR451 GAL1 / W-002THUJA PLICATAWESTERN RED CEDAR421 GAL1 / W-002WETLAND MITIGATION PLANT SCHEDULESHRUBS & GROUNDCOVERSSYMBOLBOTANICAL NAMECOMMON NAMEQTYCONDREMARKS/SPACINGDETAILAMELANCHIER ALNIFOLIASERVICEBERRY241 GALSPACING @ 8' OC1 / W-002CORNUS SERICEAREDTWIG DOGWOOD271 GALSPACING @ 6' OC1 / W-002GAULTHERIA SHALLONSALAL2971 GALSPACING @ 4' OC1 / W-002HOLODISCUS DISCOLOROCEANSPRAY521 GALSPAC ING @ 8' OC1 / W-002MAHONIA AQUIFOLIUMOREGON GRAPE1551 GALSPACING @ 5' OC1 / W-002POLYSTICHUM MUNITUMSWORD FERN2571 GALSPACING @ 4' OC1 / W-002RIBES SANGUINEUMRED FLOWERING CURRANT101 GALSPACING @ 6' OC1 / W-002ROSA NUTKANANOOTKA ROSE41 GALSPACING @ 6' OC1 / W-002SALIX LUCIDAPACIFIC WILLOW69LIVESTAKESPACING @ 2' OC2 / W-002SALIX SITCHENSISSITKA WILLOW119LIVESTAKESPACING @ 2' OC2 / W-002SYMPHORICARPOS ALBUSCOMMON SNOWBERRY571 GALSPACING @ 6' OC1 / W-002HYDROSEEDED NATIVE FIELD GRASSAREASEE NOTE 6Checked By:Drawn By:Project No.:Designed By:www.tetratech.comMARKDATEDESCRIPTIONBY5/2/2022 2:23:20 PM - C:\USERS\RICHARD.MORRIS\ACCDOCS\TETRA TECH INC\200-12562-20003 PT. HADLOCK\PROJECT FILES(WORKING MODEL)\CAD-MODELFILES\SHEETFILES\WWTF\W-001-WETLAND MITIGATION SCHEDULES AND NOTES.DWG - MORRIS, RICHARD1ABCDEF234567Bar Measures 1 inchCopyright: Tetra Tech200-12562-20003RECLAMATION PLANTAND INFLUENT PIPELINEJEFFERSON COUNTY, WASHINGTONPORT HADLOCK UGA SEWER SYSTEM1420 FIFTH AVENUE, SUITE 600SEATTLE, WA 98101PHONE:(206) 883-9300 FAX:(206) 883-930190% DESIGNPRELIMINARYNOT FOR CONSTRUCTIONCALL BEFORE YOU DIG811 W-001WETLAND MITIGATIONSCHEDULES AND NOTESA. MURDICKR. MORRISE. DIENST 3" MIN.3" MIN. PRUNE & REMOVE ANY DEAD, DYING OR BROKEN BRANCHES ROOTBALL NOTE: ARRANGEMENT AND SPACING OF PLANTS AND SHAPE AND PLANTING BEDS VARY, SEE PLANS. SLOW RELEASE FERTILIZER TABLETS (SEE SPECIFICATIONS) SPECIFIED MULCH. PULL BACK MULCH 2 TO 3" FROM CROWN OF ROOBALL PREPARED TOPSOIL COMPACTED TO PREVENT SETTLING SECTION PREPARED TOPSOIL OVER SCARIFIED SUBGRADE (SEE SPECIFICATIONS FOR PREPARATION REQUIREMENTS)6" TO 9"SPECIFIED MULCH PREPARED TOPSOIL OVER SCARIFIED SUBGRADE (SEE SPECIFICATIONS FOR PREPARATION REQUIREMENTS) NATIVE SOIL LIVE STAKE: 18" TO 24" LENGTH, 3/4" TO 1-1/2" DIAMETER REMOVE PORTION OF LIVE STAKE IF DAMAGED DURING PLACEMENT FINISH GRADE OF TOPSOIL NOTE: ARRANGEMENT AND SPACING OF PLANTS AND SHAPE AND PLANTING BEDS VARY, SEE PLANS.12" MINChecked By: Drawn By: Project No.: Designed By:www.tetratech.comMARKDATEDESCRIPTIONBY5/2/2022 2:26:19 PM - C:\USERS\RICHARD.MORRIS\ACCDOCS\TETRA TECH INC\200-12562-20003 PT. HADLOCK\PROJECT FILES(WORKING MODEL)\CAD-MODELFILES\SHEETFILES\WWTF\W-002-WETLAND MITIGATION SECTIONS-PLANTING DETAILS.DWG - MORRIS, RICHARD1 A B C D E F 2 3 4 5 6 7 Bar Measures 1 inch Copyright: Tetra Tech200-12562-20003RECLAMATION PLANTAND INFLUENT PIPELINEJEFFERSON COUNTY, WASHINGTONPORT HADLOCK UGA SEWER SYSTEM1420 FIFTH AVENUE, SUITE 600SEATTLE, WA 98101PHONE:(206) 883-9300 FAX:(206) 883-930190% DESIGN PRE LI MI N A R Y NOT F O R C O N S T R U C TI O N CALL BEFORE YOU DIG 811 TREE AND SHRUB PLANTING DETAIL1 W-002 NO SCALE LIVE STAKE PLANTING DETAIL2 W-002 NO SCALE W-002WETLAND MITIGATIONSECTIONS ANDPLANTING DETAILSA. MURDICK R. MORRIS E. DIENST Sheet LEGEND SYMBOL DESCRIPTION WETLAND BOUNDARY LINE WETLAND BUFFER LINE NATIVE BUFFER ENHANCEMENT BORDER LINE NATIVE BUFFER ENHANCEMENT PLANTINGS WETLAND RESTORATION (AREA TO BE REVEGETATED WITH NATIVE WETLAND PLANTINGS) SEEDED NATIVE GRASS WETLAND BUFFER APPROXIMATE EXTENTS OF EXISTING VEGETATION x x x x x xxxxxxxxx xxx xxxxxxxxxxxxxxxWETLAND BOUNDARY 150' S E T B A C K LOPEMAN ROADNESS' CORNER ROADEXISTING GRAVEL ROAD EXISTING QUARRY WETLAND 'A' BOUNDARY WETLAND 'A' 80' SETBACK WETLAND 'B' BOUNDARY WETLAND 'B' 80' SETBACK WETLAND 'C' BOUNDARY WETLAND 'C' 150' SETBACK PERCOLATION POND CHIMACUM CREEKNATIVE BUFFER ENHANCEMENT BORDER LINE (TYP) NATIVE BUFFER ENHANCEMENT BORDER LINE (TYP) WETLAND BOUNDARY W-106 W-104 W-103W-102 W-101 W-105 WETLAND 'C' WETLAND 'A' WETLAND 'B' BORROW AREA150' SE T B A C K Checked By: Drawn By: Project No.: Designed By:www.tetratech.comMARKDATEDESCRIPTIONBY5/2/2022 4:55:56 PM - C:\USERS\RICHARD.MORRIS\ACCDOCS\TETRA TECH INC\200-12562-20003 PT. HADLOCK\PROJECT FILES(WORKING MODEL)\CAD-MODELFILES\SHEETFILES\WWTF\W-100-WETLAND MITIGATION KEY MAP.DWG - MORRIS, RICHARD1 A B C D E F 2 3 4 5 6 7 Bar Measures 1 inch Copyright: Tetra Tech200-12562-20003RECLAMATION PLANTAND INFLUENT PIPELINEJEFFERSON COUNTY, WASHINGTONPORT HADLOCK UGA SEWER SYSTEM1420 FIFTH AVENUE, SUITE 600SEATTLE, WA 98101PHONE:(206) 883-9300 FAX:(206) 883-930190% DESIGN PRE LI MI N A R Y NOT F O R C O N S T R U C TI O N CALL BEFORE YOU DIG 811 N 0 SCALE: 50'100'200' 1" = 100'W-100WETLAND MITIGATIONKEY MAPA. MURDICK R. MORRIS E. DIENST W-100WETLAND MITIGATIONKEY MAPA. MURDICK R. MORRIS E. DIENST NOTE: REF W-001 FOR WETLAND MITIGATION PLANT SCHEDULES AND NOTES EXISTING WETLANDS BOUNDARY LINE (TYP)NESS CORNER ROADEXISTING TREE TO REMAIN (TYP) APPROXIMATE EXTENTS OF EXISTING VEGETATION (TYP) RE-SEEDEDFIBER OPTICUTVUTVUTVUTVUTVFOFOFOFOFOFOSOLID WHITE LINESOLID WHITE LINEYELLOW CENTERLINE RPMSWWChecked By: Drawn By: Project No.: Designed By:www.tetratech.comMARKDATEDESCRIPTIONBY5/2/2022 4:09:34 PM - C:\USERS\RICHARD.MORRIS\ACCDOCS\TETRA TECH INC\200-12562-20003 PT. HADLOCK\PROJECT FILES(WORKING MODEL)\CAD-MODELFILES\SHEETFILES\WWTF\W-101-WETLAND MITIGATION PLANS.DWG - MORRIS, RICHARD1 A B C D E F 2 3 4 5 6 7 Bar Measures 1 inch Copyright: Tetra Tech200-12562-20003RECLAMATION PLANTAND INFLUENT PIPELINEJEFFERSON COUNTY, WASHINGTONPORT HADLOCK UGA SEWER SYSTEM1420 FIFTH AVENUE, SUITE 600SEATTLE, WA 98101PHONE:(206) 883-9300 FAX:(206) 883-930190% DESIGN PRE LI MI N A R Y NOT F O R C O N S T R U C TI O N CALL BEFORE YOU DIG 811 N W-101WETLAND MITIGATIONPLAN - 1A. MURDICK R. MORRIS E. DIENSTMATCHLINE SEE SHEET W-1020 SCALE: 10'20'40' 1'' = 20' EXISTING WETLANDS BOUNDARY LINE (TYP) EXISTING TREE TO REMAIN (TYP)PROPERTY LINEEXISTING GRAVEL ROADAPPROXIMATE EXTENTS OF EXISTING VEGETATION (TYP) RE-SEEDED NATIVE BUFFER ENHANCEMENT BORDER LINE (TYP) NOTE: REF W-001 FOR WETLAND MITIGATION PLANT SCHEDULES AND NOTES Checked By: Drawn By: Project No.: Designed By:www.tetratech.comMARKDATEDESCRIPTIONBY5/2/2022 4:06:30 PM - C:\USERS\RICHARD.MORRIS\ACCDOCS\TETRA TECH INC\200-12562-20003 PT. HADLOCK\PROJECT FILES(WORKING MODEL)\CAD-MODELFILES\SHEETFILES\WWTF\W-101-WETLAND MITIGATION PLANS.DWG - MORRIS, RICHARD1 A B C D E F 2 3 4 5 6 7 Bar Measures 1 inch Copyright: Tetra Tech200-12562-20003RECLAMATION PLANTAND INFLUENT PIPELINEJEFFERSON COUNTY, WASHINGTONPORT HADLOCK UGA SEWER SYSTEM1420 FIFTH AVENUE, SUITE 600SEATTLE, WA 98101PHONE:(206) 883-9300 FAX:(206) 883-930190% DESIGN PRE LI MI N A R Y NOT F O R C O N S T R U C TI O N CALL BEFORE YOU DIG 811 N W-102WETLAND MITIGATIONPLAN - 2A. MURDICK R. MORRIS E. DIENSTMATCHLINE SEE SHEET W-103MATCHLINE SEE SHEET W-1010 SCALE: 10'20'40' 1'' = 20' xxxxx63+70.3962+0063+00EXISTING WETLANDS BOUNDARY LINE (TYP) APPROXIMATE EXTENTS OF EXISTING VEGETATION (TYP) RE-SEEDED NATIVE BUFFER ENHANCEMENT BORDER LINE (TYP) NATIVE BUFFER ENHANCEMENT BORDER LINE (TYP) NOTE: REF W-001 FOR WETLAND MITIGATION PLANT SCHEDULES AND NOTES Checked By: Drawn By: Project No.: Designed By:www.tetratech.comMARKDATEDESCRIPTIONBY5/2/2022 4:04:59 PM - C:\USERS\RICHARD.MORRIS\ACCDOCS\TETRA TECH INC\200-12562-20003 PT. HADLOCK\PROJECT FILES(WORKING MODEL)\CAD-MODELFILES\SHEETFILES\WWTF\W-101-WETLAND MITIGATION PLANS.DWG - MORRIS, RICHARD1 A B C D E F 2 3 4 5 6 7 Bar Measures 1 inch Copyright: Tetra Tech200-12562-20003RECLAMATION PLANTAND INFLUENT PIPELINEJEFFERSON COUNTY, WASHINGTONPORT HADLOCK UGA SEWER SYSTEM1420 FIFTH AVENUE, SUITE 600SEATTLE, WA 98101PHONE:(206) 883-9300 FAX:(206) 883-930190% DESIGN PRE LI MI N A R Y NOT F O R C O N S T R U C TI O N CALL BEFORE YOU DIG 811 N W-103WETLAND MITIGATIONPLAN - 2A. MURDICK R. MORRIS E. DIENSTMATCHLINE SEE SHEET W-1020 SCALE: 10'20'40' 1'' = 20' NOTE: REF W-001 FOR WETLAND MITIGATION PLANT SCHEDULES AND NOTES x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxFENCE PERCOLATION POND (GRAVEL SURFACE, REF CIVIL DWGS)LOPEMAN ROADWETLAND 'C' 150' SETBACK SEEDING ASSOCIATED WITH THE PLANT RECLAMATION PROJECT-TYP (REF LANDSCAPE DRAWINGS)PROPERTY LINExx>>>>>>>MONITORING WELLA. WOODREBAR AND CAPREBARGRAVELDRIVEREBARUTVUTVUTVUTVUTVUTVxxxNOTE: REF W-001 FOR WETLAND MITIGATION PLANT SCHEDULES AND NOTES Checked By: Drawn By: Project No.: Designed By:www.tetratech.comMARKDATEDESCRIPTIONBY5/2/2022 2:58:05 PM - C:\USERS\RICHARD.MORRIS\ACCDOCS\TETRA TECH INC\200-12562-20003 PT. HADLOCK\PROJECT FILES(WORKING MODEL)\CAD-MODELFILES\SHEETFILES\WWTF\W-101-WETLAND MITIGATION PLANS.DWG - MORRIS, RICHARD1 A B C D E F 2 3 4 5 6 7 Bar Measures 1 inch Copyright: Tetra Tech200-12562-20003RECLAMATION PLANTAND INFLUENT PIPELINEJEFFERSON COUNTY, WASHINGTONPORT HADLOCK UGA SEWER SYSTEM1420 FIFTH AVENUE, SUITE 600SEATTLE, WA 98101PHONE:(206) 883-9300 FAX:(206) 883-930190% DESIGN PRE LI MI N A R Y NOT F O R C O N S T R U C TI O N CALL BEFORE YOU DIG 811 W-104WETLAND MITIGATIONPLAN - 4A. MURDICK R. MORRIS E. DIENST MATCH LINE SEE SHEET W-105 N 0 SCALE: 10'20'40' 1'' = 20' xxxxxxx x x x x x x x x x x x x x x x x LOPEMAN ROADWETLAND 'B' WETLAND 'A' WETLAND 'B' 80' SETBACK WETLAND 'A' 80' SETBACK PROPERTY LINE EXISTING WETLANDS 'B' BOUNDARY LINE EXISTING WETLANDS 'A' BOUNDARY LINE EXISTING WETLANDS 'C' BOUNDARY LINE WETLAND 'C' FENCE APPROXIMATE EXTENTS OF EXISTING VEGETATION (TYP)>>A. WOODREBAR AND CAPUTVNOTE: REF W-001 FOR WETLAND MITIGATION PLANT SCHEDULES AND NOTES Checked By: Drawn By: Project No.: Designed By:www.tetratech.comMARKDATEDESCRIPTIONBY5/2/2022 2:52:11 PM - C:\USERS\RICHARD.MORRIS\ACCDOCS\TETRA TECH INC\200-12562-20003 PT. HADLOCK\PROJECT FILES(WORKING MODEL)\CAD-MODELFILES\SHEETFILES\WWTF\W-101-WETLAND MITIGATION PLANS.DWG - MORRIS, RICHARD1 A B C D E F 2 3 4 5 6 7 Bar Measures 1 inch Copyright: Tetra Tech200-12562-20003RECLAMATION PLANTAND INFLUENT PIPELINEJEFFERSON COUNTY, WASHINGTONPORT HADLOCK UGA SEWER SYSTEM1420 FIFTH AVENUE, SUITE 600SEATTLE, WA 98101PHONE:(206) 883-9300 FAX:(206) 883-930190% DESIGN PRE LI MI N A R Y NOT F O R C O N S T R U C TI O N CALL BEFORE YOU DIG 811 W-105WETLAND MITIGATIONPLAN - 5A. MURDICK R. MORRIS E. DIENST N MATCH LINE SEE SHEET W-104 MATCH LINE SEE SHEETW-106 0 SCALE: 10'20'40' 1'' = 20' LOPEMAN ROADWETLAND 'B' WETLAND 'B' 80' SETBACK EXISTING WETLANDS 'C' BOUNDARY LINE WETLAND 'C'CONC.DRIVEUTVUTVNOTE: REF W-001 FOR WETLAND MITIGATION PLANT SCHEDULES AND NOTES Checked By: Drawn By: Project No.: Designed By:www.tetratech.comMARKDATEDESCRIPTIONBY5/2/2022 2:48:51 PM - C:\USERS\RICHARD.MORRIS\ACCDOCS\TETRA TECH INC\200-12562-20003 PT. HADLOCK\PROJECT FILES(WORKING MODEL)\CAD-MODELFILES\SHEETFILES\WWTF\W-101-WETLAND MITIGATION PLANS.DWG - MORRIS, RICHARD1 A B C D E F 2 3 4 5 6 7 Bar Measures 1 inch Copyright: Tetra Tech200-12562-20003RECLAMATION PLANTAND INFLUENT PIPELINEJEFFERSON COUNTY, WASHINGTONPORT HADLOCK UGA SEWER SYSTEM1420 FIFTH AVENUE, SUITE 600SEATTLE, WA 98101PHONE:(206) 883-9300 FAX:(206) 883-930190% DESIGN PRE LI MI N A R Y NOT F O R C O N S T R U C TI O N CALL BEFORE YOU DIG 811 W-106WETLAND MITIGATIONPLAN - 6A. MURDICK R. MORRIS E. DIENST N MATCH LINE SEE SHEET W-105 0 SCALE: 10'20'40' 1'' = 20' Photos page 1 ESA January 2022 Port Hadlock UGA Sewer System - Representative Photos, May 26, 2011 Photo 1. Wetland A Photo 2. Wetland B Photo 3. Wetland C - south end Photo 4. Wetland C - north end Photo 5. Wetland D - north end Photo 6. Wetland D - south end Photos page 2 ESA January 2022 Photo 7. Chimacum Creek west of reclaimed water site Photo 8. Upland forest at north end of Wetland D Photo 9. Proposed wastewater treatment plant site west of Wetland D Photo 10. Proposed reclaimed water reuse site east of Wetland B Photo 11. Upland forest in buffer west of Wetland D Photo 12. Degraded buffer NE of Wetland B Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Appendix A April 2022 APPENDIX A: WETLAND CHARACTERISTICS AND REGULATORY SUMMARY Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page A-1 April 2022 WETLAND DEFINITION Wetlands are formally defined by the U.S. Army Corps of Engineers (Corps) (Federal Register 1982), the Environmental Protection Agency (EPA) (Federal Register 1988), the Washington Shoreline Management Act (SMA) of 1971 (Ecology, 1991) and the Was hington State Growth Management Act (GMA) (Ecology, 1992) as … those areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas (Federal Register, 1982, 1986). In addition, the SMA and the GMA definitions add: Wetlands do not include those artificial wetlands intentionally created from non- wetland site, including, but not limited to, irrigation and drainage ditches, grass- lined swales, canals, detention facilities, wastewater treatment facilities, farm ponds, and landscape amenities, or those wetlands created after July 1, 1990 that were unintentionally created as a result of the construction of a road, street, or highway. Wetlands may include those artificially created wetlands intentionally created from non-wetland areas to mitigate the conversion of wetlands. Methods defined in the Washington State Wetlands Identification and Delineation Manual (Ecology, 1997) were used to determine the presence and extent of wetlands on the subject property. Washington state and all local governments must use the state delineation manual to implement the Shoreline Management Act and/or the local regulations adopted pursuant to the Growth Management Act . The Washington state manual is consistent with the U.S. Army Corps of Engineers Wetlands Delineation Manual (Environmental Laboratory, 1987). The Corps has been working with states, federal agencies, and others to develop supplemental regional criteria to refine the 1987 delineation manual. Two regions fall within the state of Washington: The Arid West (dry lands west of the Continental Divide, from Idaho and eastern Washington south to the U.S. - Mexico border) and the Western Mountains, Valleys, and Coast . Interim Regional Supplements to the Corps of Engineers 1987 Wetlands Delineation Manual have been completed by the Corps for both regions in Washington, and the appropriate supplement is now used, along with the Washington State Delineation Manual, when conducting delineations in those regions (Corps, 2008, 2010). The methodology outlined in the manuals is based upon three essential characteristics of wetlands: (1) hydrophytic vegetation; (2) hydric soils; and (3) wetland hydrology. Field indicators of these three characteristics must all be present in order to determine that an area is a wetland (unless problem areas or atypical situations are encountered). These characteristics are discussed below. Port Hadlock UGA Sewer Critical Areas Report and HMP Page A-2 ESA April 2022 Vegetation Plants must be specially adapted for life under saturated or anaerobic conditions to grow in wetlands. The U.S. Fish and Wildlife Service (USFWS) has determined the estimated probability of each plant species’ occurrence in wetlands and has accordingly assigned a “wetland indicator status” (WIS) to each species (USFWS, 1988, 1993). Plants are categorized as obligate (OBL), facultative wetland (FACW), facultative (FAC), facultative upland (FACU), upland (UPL), not listed (NL), or no indicator status (NI). Definitions for each indicator status are listed below. Species with an indicator status of OBL, FACW, or FAC are considered adapted for life in saturated or anaerobic soil conditions. Such species are referred to as “hydrophytic” vegetation. Key to Wetland Indicator Status codes – Northwest Region (Source: USFWS, 1988, 1993): OBL Obligate: species that almost always occur wetlands under natural conditions (est. probability >99%). FACW Facultative wetland: species that usually occur in wetlands (est. probability 67 to 99%), but are occasionally found in non-wetlands. FAC Facultative: Species that are equally likely to occur in wetlands or non -wetlands (est. probability 34 to 66%). FACU Facultative upland: species that usually occur in non-wetlands (est. probability 67 to 99%), but are occasionally found in wetlands. UPL Upland: species that almost always occur in non -wetlands under normal conditions (est. probability >99%). NL Not listed: species that are not listed by USFWS (1988, 1993) and are presumed to be upland species. NI No indicator: species for which insufficient information is available to determine status, or which were not evaluated by USFWS. Areas of relatively homogeneous vegetative composition can be characterized by “dominant” species. The indicator status of the dominant species within each vegetative stratum is used to determine if the plant community may be characterized as hydrophytic . The vegetation of an area is considered to be hydrophytic if more than 50% of the dominant species have an indicator status of OBL, FACW, or FAC. The Regional Supplements provide additional tests for evaluating the presence of hydrophytic vegetation communities including the prevalence index, morphological adaptations, and wetland non-vascular plants. The Supplements also address difficult situations where hydrophytic vegetation indicators are not present but hydric soils and wetland hydrology are observed. Soils Hydric soils are indicative of wetlands. Hydric soils are defined as soils that are saturated, flooded, or ponded long enough during the growing season to develop anaerobic conditions in the upper part of the soil profile (Federal Register, 1994). The Natural Resources Conservation Service (NRCS), in cooperation with the National Technical Committee for Hydric Soils, has compiled lists of hydric soils (NRCS, 1995). These lists identify soil series mapped by the NRCS that meet hydric soil criteria. It is common, however, for a map unit of non-wetland (non-hydric) soil to have inclusions of hydric soil, and vice versa. Therefore, field examination of soil conditions is important to determine if hydric soil conditions exist . Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page A-3 April 2022 The NRCS has developed a guide fo r identifying field indicators of hydric soils (NRCS, 2010). This list of hydric soil indicators is considered to be dynamic; revisions are anticipated to occur on a regular basis as a result of ongoing studies of hydric soils. In general, anaerobic condit ions create certain characteristics in hydric soils, collectively known as “redoximorphic features,” that can be observed in the field (Vepraskas, 1999). Redoximorphic features include high organic content, accumulation of sulfidic material (rotten egg odo r), greenish- or bluish-gray color (gley formation), spots or blotches of different color interspersed with the dominant or matrix color (mottling), and dark soil colors (low soil chroma) (NRCS, 2010; Vepraskas, 1999). Soil colors are described both by common color name (for example, “dark brown”) and by a numerical description of their hue, value, and chroma (for example, 10YR 2/2) as identified on a Munsell soil color chart (Munsell Color, 2000). Soil color is determined from a moist soil sample. The Regional Supplements provide methods for difficult situations where hydric soil indicators are not observed, but indicators of hydrophytic vegetation and wetland hydrology are present . Hydrology Water must be present in order for wetlands to exist; however, it need not be present throughout the entire year. Wetland hydrology is considered to be present when there is permanent or periodic inundation or soil saturation at or near the soil surface for more than 12.5% of the growing season (typically two weeks in lowland Pacific Northwest areas). Areas that are inundated or saturated for between 5% and 12.5% of the growing season in most years may or may not be wetlands. Areas inundated or saturated for less than 5% of the growing season are non-wetlands (Ecology, 1997). Indicators of wetland hydrology include observation of ponding or soil saturation, water marks, drift lines, drainage patterns, sediment deposits, oxidized rhizospheres, water -stained leaves, and local soil survey data. Where positive indicators of wetland hydrology are observed, it is assumed that wetland hydrology occurs for a sufficient period of the growing season to meet the wetland criteria, as described by Ecology (1997). The Regional Supplements provide methods for evaluating situations in wetlands that periodically lack indicators of wetland hydrology but where hydric soils and hydrophytic vegetation are present. FEDERAL REGULATIONS The Corps regulates discharges of dredged or fill materials into waters of the United States, including wet lands, under Section 404 of the Clean Water Act . The purpose of the Clean Water Act is to “restore and maintain the chemical, physical, and biological integrity of the Nation’s waters.” A Section 404 permit may be required if a proposed project involves filling wetlands or altering streambeds or other waters of the U.S . The Corps will determine if wetlands are jurisdictional under Section 404 based upon the presence of a “significant nexus” to navigable waters (EPA and Corps, June 5, 2007). The Corps has established two types of permit programs under Section 404: nationwide and individual. Nationwide permits are issued when a proposed activity will have minimal adverse impacts to wetlands. All other projects are evaluated under the individual permitting pro cess. The Corps determines which permitting process is used for a proposed project . The Corps will Port Hadlock UGA Sewer Critical Areas Report and HMP Page A-4 ESA April 2022 require that wetland impacts be avoided or minimized to the extent practicable, and mitigation will likely be required for unavoidable wetland impacts. STATE REGULATIONS The state certification process under Section 401 of the federal Clean Water Act is usually triggered through a Section 404 permit application. Section 401 directs each state to certify that proposed in-water activities will not adversely affect water quality or violate state aquatic protection laws. In Washington State, Ecology is responsible for administering the state certification program. Ecology may issue approval, approval with conditions, denial, or a request for delay due to lack of information. Any conditions attached to the 401 certification become part of the Section 404 permit. Jefferson County is one of the 15 coastal counties in Washington regulated under the Washington State Coastal Zone Management (CZM) Program. Activities that would affect coastal resources and involve approvals from the federal government (such as a Section 404 permit) must be evaluated for CZM compliance through a process called “federal consistency.” The Washington State Department of Ecology administers the CZM program in this state. If relocation or alteration of stream culverts or other in-stream work is proposed as part of the project, a Hydraulic Project Approval (HPA) would be required from the Washington Department of Fish and Wildlife under the state Hydraulic Code (RCW 77.55, WAC 220-110). Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Appendix B April 2022 APPENDIX B: COMMON AND SCIENTIFIC NAMES OF PLANTS AND THEIR WETLAND INDICATOR ST ATUS Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Page B-1 April 2022 PLANT SPECIES LIST FOR THE PORT HADLOCK SEWER PROJECT, IDENTIFIED ON MAY 26, 2011, August 2021 COMMON NAME SCIENTIFIC NAME WETLAND INDICATOR STATUS* Trees Douglas fir Pseudotsuga menziesii FACU red alder Alnus rubra FAC Shrubs common snowberry Symphoricarpos albus FACU creambush oceanspray Holodiscus discolor NL Douglas' spiraea Spiraea douglasii FACW evergreen blackberry Rubus laciniatus FACU Himalayan blackberry Rubus armenicus FAC Nootka rose Rosa nutkana FAC Pacific willow Salix lasiandra (Salix lucida ssp. lasiandra) FACW Saskatoon Amelanchier alnifolia FACU Scot's broom Cytisus scoparius NL Scouler willow Salix scouleriana FAC Sitka willow Salix sitchensis FACW white willow (golden willow) Salix alba FACW Herbs black medic Medicago lupulina FAC bull thistle Cirsium vulgare FACU Canadian thistle Cirsium arvense FAC climbing nightshade (bittersweet) Solanum dulcamara FAC common cattail Typha latifolia OBL common mare’s tail Hippuris vulgaris OBL common plantain Plantago major FAC common tansy Tanacetum vulgare NI common velvetgrass Holcus lanatus FAC common vetch Vicia sativa UPL creeping buttercup Ranunculus repens FACW curly dock Rumex crispus FAC English Daisy Bellis perennis NL English plantain Plantago lanceolata FACU field horsetail Equisetum arvense FAC hairy cats-ear Hypochaeris radicata FACU Oregon bentgrass Agrostis oregonensis FAC oxeye-daisy Chrysanthemum leucanthemum (Leucanthemum vulgare) NL Pacific blackberry (dewberry) Rubus ursinus FACU Port Hadlock UGA Sewer Critical Areas Report and HMP Page B-2 ESA April 2022 COMMON NAME SCIENTIFIC NAME WETLAND INDICATOR STATUS* pondweed Potamogeton spp. OBL reed canarygrass Phalaris arundinacea FACW sheep sorrel Rumex acetosella FACU soft rush Juncus effusus FACW stinging nettle Urtica dioica FAC tall fescue Festuca arundinacea (Lolium arundinaceum) FAC Teasel Diospcus fullorium FAC Watson's willow-weed Epilobium watsonii (Epilobium ciliatum ssp. watsonii) FACW white clover Trifolium repens FAC *Key to Wetland Indicator Status codes – Northwest Region (Source: USFWS, 1988, 1993; Corps, 2018): OBL Obligate: species that almost always occur wetlands under natural conditions (est. probability >99%). FACW Facultative wetland: species that usually occur in wetlands (est. probability 67 to 99%), but are occasionally found in non-wetlands. FAC Facultative: Species that are equally likely to occur in wetlands or non -wetlands (est. probability 34 to 66%). FACU Facultative upland: species that usually occur in non-wetlands (est. probability 67 to 99%), but are occasionally found in wetlands. UPL Upland: species that almost always occur in non -wetlands under normal conditions (est. probability >99%). NL Not listed: species that are not listed by USFWS (1988, 1993) and are presumed to be upland species. NI No indicator: species for which insufficient information is available to determine status, or which were not evaluated by USFWS. Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Appendix C April 2022 APPENDIX C: WASHINGTON STATE WETLAND RATING SYSTEM AND RATING FORMS Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Appendix C April 2022 Washington State Wetland Rating System The observed wetlands were rated using the Washington State Department of Ecology’s Wetland Rating System for Western Washington – Revised (Hruby, 2014). This system was developed by Ecology to differentiate wetlands based on their sensitivity to disturbance, their significance, their rarity, our ability to replace them, and the beneficial functions they provide to society. Wetlands are categorized using the Ecology rating system according to the following criteria: Category I wetlands represent a unique or rare wetland type; or are more sensitive to disturbance; or are relatively undisturbed and contain ecological attributes that are impossible to replace within a human lifetime. Category II wetlands are difficult, though not impossible, to replace, and provide high levels of some functions. Category III wetlands have a moderate level of function. They have been disturbed in some ways, and are often less diverse or more isolated from other natural resources in the land scape than Category II wetlands. Category IV wetlands have the lowest levels of functions and are often heavily disturbed. Port Hadlock UGA Sewer Critical Areas Report and HMP Page B-2 ESA April 2022 Wetland name or number A Name of wetland (or ID #):Date of site visit: 7/23/2021 Rated by Trained by Ecology? Yes No Date of training 23-May-21 HGM Class used for rating Wetland has multiple HGM classes? Yes No NOTE: Form is not complete with out the figures requested (figures can be combined ). Source of base aerial photo/map OVERALL WETLAND CATEGORY III (based on functions or special characteristics ) 1. Category of wetland based on FUNCTIONS Category I - Total score = 23 - 27 Score for each Category II - Total score = 20 - 22 function based X Category III - Total score = 16 - 19 on three Category IV - Total score = 9 - 15 ratings (order of ratings is not important ) M L 9 = H, H, H M M 8 = H, H, M MMTotal 7 = H, H, L 7 = H, M, M 6 = H, M, L 6 = M, M, M 5 = H, L, L 5 = M, M, L 4 = M, L, L 3 = L, L, L 2. Category based on SPECIAL CHARACTERISTICS of wetland None of the above Coastal Lagoon Interdunal Value Score Based on Ratings 76518 H CHARACTERISTIC Category Estuarine Wetland of High Conservation Value Bog Mature Forest Old Growth Forest Depressional & Flats RATING SUMMARY – Western Washington List appropriate rating (H, M, L) HydrologicImproving Water Quality LSite Potential Landscape Potential Habitat H FUNCTION Wetland A (Port Hadlock) Madeline Remmen Google Earth, GIS, WQ atlas Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 1 WSDOT Adapted Form - March 2, 2015 Wetland name or number A Maps and Figures required to answer questions correctly for Western Washington Depressional Wetlands Map of: Figure # Cowardin plant classes 1 Hydroperiods 2 Location of outlet (can be added to map of hydroperiods )2 Boundary of area within 150 ft of the wetland (can be added to another figure ) 5/// Map of the contributing basin 3 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) 6 Screen capture of list of TMDLs for WRIA in which unit is found (from web) 7 Riverine Wetlands Map of: Figure # Cowardin plant classes Hydroperiods Ponded depressions Boundary of area within 150 ft of the wetland (can be added to another figure ) Plant cover of trees, shrubs, and herbaceous plants Width of unit vs. width of stream (can be added to another figure ) Map of the contributing basin 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) Screen capture of list of TMDLs for WRIA in which unit is found (from web) Lake Fringe Wetlands Map of: Figure # Cowardin plant classes Plant cover of trees, shrubs, and herbaceous plants Boundary of area within 150 ft of the wetland (can be added to another figure ) 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) Screen capture of list of TMDLs for WRIA in which unit is found (from web) Slope Wetlands Map of: Figure # Cowardin plant classes Hydroperiods Plant cover of dense trees, shrubs, and herbaceous plants Plant cover of dense, rigid trees, shrubs, and herbaceous plants (can be added to another figure ) Boundary of area within 150 ft of the wetland (can be added to another figure ) 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) Screen capture of list of TMDLs for WRIA in which unit is found (from web) To answer questions: D 1.3, H 1.1, H 1.4 D 1.4, H 1.2 D 1.1, D 4.1 D 2.2, D 5.2 D 4.3, D 5.3 H 2.1, H 2.2, H 2.3 D 3.1, D 3.2 D 3.3 To answer questions: H 1.1, H 1.4 H 1.2 R 1.1 R 2.4 R 1.2, R 4.2 R 4.1 R 2.2, R 2.3, R 5.2 H 2.1, H 2.2, H 2.3 L 1.2 L 2.2 L 3.1, L 3.2 L 3.3 H 2.1, H 2.2, H 2.3 R 3.1 R 3.2, R 3.3 To answer questions: L 1.1, L 4.1, H 1.1, H 1.4 S 3.1, S 3.2 S 3.3 S 4.1 S 2.1, S 5.1 To answer questions: H 1.1, H 1.4 H 1.2 S 1.3 H 2.1, H 2.2, H 2.3 4//// Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 2 WSDOT Adapted Form - March 2, 2015 Wetland name or number A For questions 1 -7, the criteria described must apply to the entire unit being rated. 1. Are the water levels in the entire unit usually controlled by tides except during floods? NO - go to 2 YES - the wetland class is Tidal Fringe - go to 1.1 1.1 Is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? NO - Saltwater Tidal Fringe (Estuarine) YES - Freshwater Tidal Fringe NO - go to 3 YES - The wetland class is Flats If your wetland can be classified as a Flats wetland, use the form for Depressional wetlands. 3. Does the entire wetland unit meet all of the following criteria? NO - go to 4 YES - The wetland class is Lake Fringe (Lacustrine Fringe) 4. Does the entire wetland unit meet all of the following criteria? The wetland is on a slope (slope can be very gradual ), The water leaves the wetland without being impounded. NO - go to 5 YES - The wetland class is Slope 5. Does the entire wetland unit meet all of the following criteria? The overbank flooding occurs at least once every 2 years. NO - go to 6 YES - The wetland class is Riverine NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding. If hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1 - 7 apply, and go to Question 8. At least 30% of the open water area is deeper than 6.6 ft (2 m). HGM Classification of Wetland in Western Washington If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may flow subsurface, as sheetflow, or in a swale without distinct banks. NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 ft deep). The unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river, 2. The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 3 WSDOT Adapted Form - March 2, 2015 Wetland name or number A NO - go to 7 YES - The wetland class is Depressional NO - go to 8 YES - The wetland class is Depressional NOTES and FIELD OBSERVATIONS: 7. Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding? The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched, but has no obvious natural outlet. 8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a Depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within the wetland unit being scored. 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during the year? This means that any outlet, if present, is higher than the interior of the wetland. Riverine Treat as ESTUARINE Slope + Lake Fringe Depressional + Riverine along stream within boundary of depression Depressional + Lake Fringe Riverine + Lake Fringe NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the HGM class listed in column 2 is less than 10% of the unit; classify the wetland using the class that represents more than 90% of the total area. HGM classes within the wetland unit being rated Slope + Riverine Slope + Depressional Depressional Depressional If you are still unable to determine which of the above criteria apply to your wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Salt Water Tidal Fringe and any other class of freshwater wetland HGM class to use in rating Riverine Depressional Lake Fringe Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 4 WSDOT Adapted Form - March 2, 2015 Wetland name or number A D 1.1. Characteristics of surface water outflows from the wetland: points = 3 points = 2 points = 1 points = 1 Yes = 4 No = 0 Wetland has persistent, ungrazed, plants > 95% of area points = 5 Wetland has persistent, ungrazed, plants > ½ of area points = 3 Wetland has persistent, ungrazed plants > 1/10 of area points = 1 Wetland has persistent, ungrazed plants < 1/10 of area points = 0 D 1.4. Characteristics of seasonal ponding or inundation: This is the area that is ponded for at least 2 months. See description in manual. Area seasonally ponded is > ½ total area of wetland points = 4 Area seasonally ponded is > ¼ total area of wetland points = 2 Area seasonally ponded is < ¼ total area of wetland points = 0 Total for D 1 Add the points in the boxes above 5 Rating of Site Potential If score is: 12 - 16 = H 6 - 11 = M 0 - 5 = L Record the rating on the first page D 2.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 1 Yes = 1 No = 0 D 2.3. Are there septic systems within 250 ft of the wetland? Yes = 1 No = 0 1 Source Yes = 1 No = 0 Total for D 2 Add the points in the boxes above 4 Rating of Landscape Potential If score is: 3 or 4 = H 1 or 2 = M 0 = L Record the rating on the first page Yes = 1 No = 0 Yes = 1 No = 0 Yes = 2 No = 0 Total for D 3 Add the points in the boxes above 2 Rating of Value If score is: 2 - 4 = H 1 = M 0 = L Record the rating on the first page D 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality (answer YES if there is a TMDL for the basin in which the unit is found )? D 1.2. The soil 2 in below the surface (or duff layer) is true clay or true organic (use NRCS definitions ). D 1.3. Characteristics and distribution of persistent plants (Emergent, Scrub-shrub, and/or Forested Cowardin classes): D 2.4. Are there other sources of pollutants coming into the wetland that are not listed in questions D 2.1 - D 2.3? D 3.1. Does the wetland discharge directly (i.e., within 1 mi) to a stream, river, lake, or marine water that is on the 303(d) list? D 2.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate pollutants? D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d) list? D 3.0. Is the water quality improvement provided by the site valuable to society? 1 1 0 0 0 DEPRESSIONAL AND FLATS WETLANDS 1 1 Water Quality Functions - Indicators that the site functions to improve water quality D 1.0. Does the site have the potential to improve water quality? 1 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet. Wetland is a depression or flat depression (QUESTION 7 on key) with no surface water leaving it (no outlet). Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch. 4 D 2.0. Does the landscape have the potential to support the water quality function of the site? Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 5 WSDOT Adapted Form - March 2, 2015 Wetland name or number A D 4.1. Characteristics of surface water outflows from the wetland: points = 4 points = 2 points = 1 points = 0 Marks of ponding are 3 ft or more above the surface or bottom of outlet points = 7 Marks of ponding between 2 ft to < 3 ft from surface or bottom of outlet points = 5 Marks are at least 0.5 ft to < 2 ft from surface or bottom of outlet points = 3 The wetland is a “headwater” wetland points = 3 Wetland is flat but has small depressions on the surface that trap water points = 1 Marks of ponding less than 0.5 ft (6 in) points = 0 The area of the basin is less than 10 times the area of the unit points = 5 The area of the basin is 10 to 100 times the area of the unit points = 3 The area of the basin is more than 100 times the area of the unit points = 0 Entire wetland is in the Flats class points = 5 Total for D 4 Add the points in the boxes above 11 Rating of Site Potential If score is: 12 - 16 = H 6 - 11 = M 0 - 5 = L Record the rating on the first page D 5.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 1 D 5.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate excess runoff? Yes = 1 No = 0 Yes = 1 No = 0 Total for D 5 Add the points in the boxes above 2 Rating of Landscape Potential If score is: 3 = H 1 or 2 = M 0 = L Record the rating on the first page points = 2 points = 1 Flooding from groundwater is an issue in the sub-basin.points = 1 points = 0 There are no problems with flooding downstream of the wetland.points = 0 Yes = 2 No = 0 Total for D 6 Add the points in the boxes above 1 Rating of Value If score is: 2 - 4 = H 1 = M 0 = L Record the rating on the first page 1 0 D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human land uses (residential at >1 residence/ac, urban, commercial, agriculture, etc.)? The existing or potential outflow from the wetland is so constrained by human or natural conditions that the water stored by the wetland cannot reach areas that flood. Explain why 1 0 7 D 4.2. Depth of storage during wet periods: Estimate the height of ponding above the bottom of the outlet. For wetlands with no outlet, measure from the surface of permanent water or if dry, the deepest part. D 4.3. Contribution of the wetland to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself. D 6.1. The unit is in a landscape that has flooding problems. Choose the description that best matches conditions around the wetland unit being rated. Do not add points. Choose the highest score if more than one condition is met. D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Hydrologic Functions - Indicators that the site functions to reduce flooding and stream degradation D 4.0. Does the site have the potential to reduce flooding and erosion? 4 Wetland is a depression or flat depression with no surface water leaving it (no outlet) Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch 0 D 5.0. Does the landscape have the potential to support hydrologic function of the site? D 6.0. Are the hydrologic functions provided by the site valuable to society? The wetland captures surface water that would otherwise flow down-gradient into areas where flooding has damaged human or natural resources (e.g., houses or salmon redds): Flooding occurs in a sub-basin that is immediately down- gradient of unit. Surface flooding problems are in a sub-basin farther down- gradient. DEPRESSIONAL AND FLATS WETLANDS Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 6 WSDOT Adapted Form - March 2, 2015 Wetland name or number A HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? Aquatic bed 4 structures or more: points = 4 Emergent 3 structures: points = 2 Scrub-shrub (areas where shrubs have > 30% cover)2 structures: points - 1 Forested (areas where trees have > 30% cover)1 structure: points = 0 If the unit has a Forested class, check if : H 1.2. Hydroperiods Permanently flooded or inundated 4 or more types present: points = 3 Seasonally flooded or inundated 3 types present: points = 2 Occasionally flooded or inundated 2 types present: points = 1 Saturated only 1 types present: points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake Fringe wetland 2 points Freshwater tidal wetland 2 points H 1.3. Richness of plant species If you counted: > 19 species points = 2 5 - 19 species points = 1 < 5 species points = 0 H 1.4. Interspersion of habitats None = 0 points Low = 1 point Moderate = 2 points All three diagrams in this row are HIGH = 3 points 1 Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or ¼ ac to count (see text for descriptions of hydroperiods ). 0 Count the number of plant species in the wetland that cover at least 10 ft2. Different patches of the same species can be combined to meet the size threshold and you do not have to name the species. Do not include Eurasian milfoil, reed canarygrass, purple loosestrife, Canadian thistle 1 Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, low, or none. If you have four or more plant classes or three classes and open water, the rating is always high. These questions apply to wetlands of all HGM classes. The Forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon 0 H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold of ¼ ac or more than 10% of the unit if it is smaller than 2.5 ac. Add the number of structures checked. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 7 WSDOT Adapted Form - March 2, 2015 Wetland name or number A H 1.5. Special habitat features: Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long) Standing snags (dbh > 4 in) within the wetland Total for H 1 Add the points in the boxes above 4 Rating of Site Potential If Score is: 15 - 18 = H 7 - 14 = M 0 - 6 = L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat function of the site? H 2.1 Accessible habitat (include only habitat that directly abuts wetland unit ). Calculate: % undisturbed habitat + (% moderate & low intensity land uses / 2 ) = If total accessible habitat is: > 1/3 (33.3%) of 1 km Polygon points = 3 20 - 33% of 1 km Polygon points = 2 10 - 19% of 1 km Polygon points = 1 < 10 % of 1 km Polygon points = 0 H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: % undisturbed habitat + (% moderate & low intensity land uses / 2 ) = Undisturbed habitat > 50% of Polygon points = 3 Undisturbed habitat 10 - 50% and in 1-3 patches points = 2 Undisturbed habitat 10 - 50% and > 3 patches points = 1 Undisturbed habitat < 10% of 1 km Polygon points = 0 H 2.3 Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points = (-2) ≤ 50% of 1km Polygon is high intensity points = 0 Total for H 2 Add the points in the boxes above 3 Rating of Landscape Potential If Score is: 4 - 6 = H 1 - 3 = M < 1 = L Record the rating on the first page Site meets ANY of the following criteria:points = 2 It has 3 or more priority habitats within 100 m (see next page) It is mapped as a location for an individual WDFW priority species Site has 1 or 2 priority habitats (listed on next page) with in 100m points = 1 Site does not meet any of the criteria above points = 0 Rating of Value If Score is: 2 = H 1 = M 0 = L Record the rating on the first page Check the habitat features that are present in the wetland. The number of checks is the number of points. It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet weathered where wood is exposed ) At least ¼ ac of thin-stemmed persistent plants or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians ) 2 It is a Wetland of High Conservation Value as determined by the Department of Natural Resources 1 Invasive plants cover less than 25% of the wetland area in every stratum of plants (see H 1.1 for list of strata ) 1 2 0 H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score that applies to the wetland being rated . It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 8 WSDOT Adapted Form - March 2, 2015 Wetland name or number A Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha). Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. Cliffs: Greater than 25 ft (7.6 m) high and occurring below 5000 ft elevation. Priority habitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympia, Washington. 177 pp. Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 – see web link above ). Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. Westside Prairies: Herbaceous, non-forested plant communities that can either take the form of a dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161 – see web link above ). Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. (full descriptions of habitats and the definition of relatively undisturbed are in WDFW report – see web link on previous page ). Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast height of > 20 in (51 cm) in western Washington and are > 6.5 ft (2 m) in height. Priority logs are > 12 in (30 cm) in diameter at the largest end, and > 20 ft (6 m) long. Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0.15 - 2.0 m), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth in soils, rock, ice, or other geological formations and is large enough to contain a human. Note: All vegetated wetlands are by definition a priority habitat but are not included in this list because they are addressed elsewhere. WDFW Priority Habitats Count how many of the following priority habitats are within 330 ft (100 m) of the wetland unit: NOTE : This question is independent of the land use between the wetland unit and the priority habitat. Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (full descriptions in WDFW PHS report ). Old-growth/Mature forests: Old-growth west of Cascade crest – Stands of at least 2 tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) > 32 in (81 cm) dbh or > 200 years of age. Mature forests – Stands with average diameters exceeding 21 in (53 cm) dbh; crown cover may be less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth; 80-200 years old west of the Cascade crest. http://wdfw.wa.gov/publications/00165/wdfw00165.pdf or access the list from here: http://wdfw.wa.gov/conservation/phs/list/ Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 9 WSDOT Adapted Form - March 2, 2015 Wetland name or number A Wetland Type Category Check off any criteria that apply to the wetland. List the category when the appropriate criteria are met. SC 1.0. Estuarine Wetlands Does the wetland meet the following criteria for Estuarine wetlands? The dominant water regime is tidal, Vegetated, and With a salinity greater than 0.5 ppt Yes - Go to SC 1.1 No = Not an estuarine wetland SC 1.1. Yes = Category I No - Go to SC 1.2 SC 1.2.Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions? Yes = Category I No = Category II SC 2.0. Wetlands of High Conservation Value (WHCV) SC 2.1. Yes - Go to SC 2.2 No - Go to SC 2.3 SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? Yes = Category I No = Not WHCV SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://www1.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.pdf Yes - Contact WNHP/WDNR and to SC 2.4 No = Not WHCV SC 2.4. Yes = Category I No = Not WHCV SC 3.0. Bogs SC 3.1. Yes - Go to SC 3.3 No - Go to SC 3.2 SC 3.2. Yes - Go to SC 3.3 No = Is not a bog SC 3.3. Yes = Is a Category I bog No - Go to SC 3.4 SC 3.4. Yes = Is a Category I bog No = Is not a bog NOTE: If you are uncertain about the extent of mosses in the understory, you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present, the wetland is a bog. Is an area with peats or mucks forested (> 30% cover) with Sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Engelmann spruce, or western white pine, AND any of the species (or combination of species) listed in Table 4 provide more than 30% of the cover under the canopy? CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Is the wetland within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC 332-30-151? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. (If non-native species are Spartina , see page 25) At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un- grazed or un-mowed grassland. The wetland has at least two of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Value and listed it on their website? Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High Conservation Value? Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below. If you answer YES you will still need to rate the wetland based on its functions . Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or more of the first 32 in of the soil profile? Does an area within the wetland unit have organic soils, either peats or mucks, that are less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on top of a lake or pond? Does an area with peats or mucks have more than 70% cover of mosses at ground level, AND at least a 30% cover of plant species listed in Table 4? Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 10 WSDOT Adapted Form - March 2, 2015 Wetland name or number A SC 4.0. Forested Wetlands Yes = Category I No = Not a forested wetland for this section SC 5.0. Wetlands in Coastal Lagoons Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? Yes - Go to SC 5.1 No = Not a wetland in a coastal lagoon SC 5.1. Does the wetland meet all of the following three conditions? The wetland is larger than 1/10 ac (4350 ft2) Yes = Category I No = Category II SC 6.0. Interdunal Wetlands In practical terms that means the following geographic areas: Long Beach Peninsula: Lands west of SR 103 Grayland-Westport: Lands west of SR 105 Ocean Shores-Copalis: Lands west of SR 115 and SR 109 Yes - Go to SC 6.1 No = Not an interdunal wetland for rating SC 6.1. Yes = Category I No - Go to SC 6.2 SC 6.2. Is the wetland 1 ac or larger, or is it in a mosaic of wetlands that is 1 ac or larger? Yes = Category II No - Go to SC 6.3 SC 6.3. Yes = Category III No = Category IV Category of wetland based on Special Characteristics If you answered No for all types, enter “Not Applicable” on Summary Form The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less than 20% cover of aggressive, opportunistic plant species (see list of species on p. 100). At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un- grazed or un-mowed grassland. Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? If you answer yes you will still need to rate the wetland based on its habitat functions. Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form (rates H,H,H or H,H,M for the three aspects of function)? Is the unit between 0.1 and 1 ac, or is it in a mosaic of wetlands that is between 0.1 and 1 ac? The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks The lagoon in which the wetland is located contains ponded water that is saline or brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the bottom ) Does the wetland have at least 1 contiguous acre of forest that meets one of these criteria for the WA Department of Fish and Wildlife’s forests as priority habitats? If you answer YES you will still need to rate the wetland based on its functions. Old-growth forests (west of Cascade crest): Stands of at least two tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 in (81 cm) or more. Mature forests (west of the Cascade Crest): Stands where the largest trees are 80- 200 years old OR the species that make up the canopy have an average diameter (dbh) exceeding 21 in (53 cm). Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 11 WSDOT Adapted Form - March 2, 2015 Wetland name or number B Name of wetland (or ID #):Date of site visit: 7/23/2021 Rated by Trained by Ecology? Yes No Date of training 23-May-21 HGM Class used for rating Wetland has multiple HGM classes? Yes No NOTE: Form is not complete with out the figures requested (figures can be combined ). Source of base aerial photo/map OVERALL WETLAND CATEGORY III (based on functions or special characteristics ) 1. Category of wetland based on FUNCTIONS Category I - Total score = 23 - 27 Score for each Category II - Total score = 20 - 22 function based X Category III - Total score = 16 - 19 on three Category IV - Total score = 9 - 15 ratings (order of ratings is not important ) M L 9 = H, H, H M M 8 = H, H, M MMTotal 7 = H, H, L 7 = H, M, M 6 = H, M, L 6 = M, M, M 5 = H, L, L 5 = M, M, L 4 = M, L, L 3 = L, L, L 2. Category based on SPECIAL CHARACTERISTICS of wetland Depressional & Flats RATING SUMMARY – Western Washington List appropriate rating (H, M, L) HydrologicImproving Water Quality LSite Potential Landscape Potential Habitat H FUNCTION Wetland B (Port Hadlock) Madeline Remmen Google Earth, GIS, WQ atlas Coastal Lagoon Interdunal Value Score Based on Ratings 76518 H CHARACTERISTIC Category Estuarine Wetland of High Conservation Value Bog Mature Forest Old Growth Forest None of the above Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 1 WSDOT Adapted Form - March 2, 2015 Wetland name or number B Maps and Figures required to answer questions correctly for Western Washington Depressional Wetlands Map of: Figure # Cowardin plant classes 1 Hydroperiods 2 Location of outlet (can be added to map of hydroperiods )2 Boundary of area within 150 ft of the wetland (can be added to another figure ) 5/// Map of the contributing basin 3 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) 6 Screen capture of list of TMDLs for WRIA in which unit is found (from web) 7 Riverine Wetlands Map of: Figure # Cowardin plant classes Hydroperiods Ponded depressions Boundary of area within 150 ft of the wetland (can be added to another figure ) Plant cover of trees, shrubs, and herbaceous plants Width of unit vs. width of stream (can be added to another figure ) Map of the contributing basin 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) Screen capture of list of TMDLs for WRIA in which unit is found (from web) Lake Fringe Wetlands Map of: Figure # Cowardin plant classes Plant cover of trees, shrubs, and herbaceous plants Boundary of area within 150 ft of the wetland (can be added to another figure ) 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) Screen capture of list of TMDLs for WRIA in which unit is found (from web) Slope Wetlands Map of: Figure # Cowardin plant classes Hydroperiods Plant cover of dense trees, shrubs, and herbaceous plants Plant cover of dense, rigid trees, shrubs, and herbaceous plants (can be added to another figure ) Boundary of area within 150 ft of the wetland (can be added to another figure ) 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) Screen capture of list of TMDLs for WRIA in which unit is found (from web) 4//// S 3.1, S 3.2 S 3.3 S 4.1 S 2.1, S 5.1 To answer questions: H 1.1, H 1.4 H 1.2 S 1.3 H 2.1, H 2.2, H 2.3 L 3.1, L 3.2 L 3.3 H 2.1, H 2.2, H 2.3 R 3.1 R 3.2, R 3.3 To answer questions: L 1.1, L 4.1, H 1.1, H 1.4 H 1.2 R 1.1 R 2.4 R 1.2, R 4.2 R 4.1 R 2.2, R 2.3, R 5.2 H 2.1, H 2.2, H 2.3 L 1.2 L 2.2 D 1.1, D 4.1 D 2.2, D 5.2 D 4.3, D 5.3 H 2.1, H 2.2, H 2.3 D 3.1, D 3.2 D 3.3 To answer questions: H 1.1, H 1.4 To answer questions: D 1.3, H 1.1, H 1.4 D 1.4, H 1.2 Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 2 WSDOT Adapted Form - March 2, 2015 Wetland name or number B For questions 1 -7, the criteria described must apply to the entire unit being rated. 1. Are the water levels in the entire unit usually controlled by tides except during floods? NO - go to 2 YES - the wetland class is Tidal Fringe - go to 1.1 1.1 Is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? NO - Saltwater Tidal Fringe (Estuarine) YES - Freshwater Tidal Fringe NO - go to 3 YES - The wetland class is Flats If your wetland can be classified as a Flats wetland, use the form for Depressional wetlands. 3. Does the entire wetland unit meet all of the following criteria? NO - go to 4 YES - The wetland class is Lake Fringe (Lacustrine Fringe) 4. Does the entire wetland unit meet all of the following criteria? The wetland is on a slope (slope can be very gradual ), The water leaves the wetland without being impounded. NO - go to 5 YES - The wetland class is Slope 5. Does the entire wetland unit meet all of the following criteria? The overbank flooding occurs at least once every 2 years. NO - go to 6 YES - The wetland class is Riverine NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding. If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may flow subsurface, as sheetflow, or in a swale without distinct banks. NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 ft deep). The unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river, 2. The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. HGM Classification of Wetland in Western Washington If hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1 - 7 apply, and go to Question 8. At least 30% of the open water area is deeper than 6.6 ft (2 m). Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 3 WSDOT Adapted Form - March 2, 2015 Wetland name or number B NO - go to 7 YES - The wetland class is Depressional NO - go to 8 YES - The wetland class is Depressional NOTES and FIELD OBSERVATIONS: Salt Water Tidal Fringe and any other class of freshwater wetland HGM class to use in rating Riverine Depressional Lake Fringe If you are still unable to determine which of the above criteria apply to your wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Riverine Treat as ESTUARINE Slope + Lake Fringe Depressional + Riverine along stream within boundary of depression Depressional + Lake Fringe Riverine + Lake Fringe NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the HGM class listed in column 2 is less than 10% of the unit; classify the wetland using the class that represents more than 90% of the total area. HGM classes within the wetland unit being rated Slope + Riverine Slope + Depressional Depressional Depressional 7. Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding? The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched, but has no obvious natural outlet. 8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a Depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within the wetland unit being scored. 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during the year? This means that any outlet, if present, is higher than the interior of the wetland. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 4 WSDOT Adapted Form - March 2, 2015 Wetland name or number B D 1.1. Characteristics of surface water outflows from the wetland: points = 3 points = 2 points = 1 points = 1 Yes = 4 No = 0 Wetland has persistent, ungrazed, plants > 95% of area points = 5 Wetland has persistent, ungrazed, plants > ½ of area points = 3 Wetland has persistent, ungrazed plants > 1/10 of area points = 1 Wetland has persistent, ungrazed plants < 1/10 of area points = 0 D 1.4. Characteristics of seasonal ponding or inundation: This is the area that is ponded for at least 2 months. See description in manual. Area seasonally ponded is > ½ total area of wetland points = 4 Area seasonally ponded is > ¼ total area of wetland points = 2 Area seasonally ponded is < ¼ total area of wetland points = 0 Total for D 1 Add the points in the boxes above 5 Rating of Site Potential If score is: 12 - 16 = H 6 - 11 = M 0 - 5 = L Record the rating on the first page D 2.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 1 Yes = 1 No = 0 D 2.3. Are there septic systems within 250 ft of the wetland? Yes = 1 No = 0 1 Source Yes = 1 No = 0 Total for D 2 Add the points in the boxes above 4 Rating of Landscape Potential If score is: 3 or 4 = H 1 or 2 = M 0 = L Record the rating on the first page Yes = 1 No = 0 Yes = 1 No = 0 Yes = 2 No = 0 Total for D 3 Add the points in the boxes above 2 Rating of Value If score is: 2 - 4 = H 1 = M 0 = L Record the rating on the first page 1 1 Water Quality Functions - Indicators that the site functions to improve water quality D 1.0. Does the site have the potential to improve water quality? 1 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet. Wetland is a depression or flat depression (QUESTION 7 on key) with no surface water leaving it (no outlet). Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch. 4 D 2.0. Does the landscape have the potential to support the water quality function of the site? DEPRESSIONAL AND FLATS WETLANDS D 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality (answer YES if there is a TMDL for the basin in which the unit is found )? D 1.2. The soil 2 in below the surface (or duff layer) is true clay or true organic (use NRCS definitions ). D 1.3. Characteristics and distribution of persistent plants (Emergent, Scrub-shrub, and/or Forested Cowardin classes): D 2.4. Are there other sources of pollutants coming into the wetland that are not listed in questions D 2.1 - D 2.3? D 3.1. Does the wetland discharge directly (i.e., within 1 mi) to a stream, river, lake, or marine water that is on the 303(d) list? D 2.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate pollutants? D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d) list? D 3.0. Is the water quality improvement provided by the site valuable to society? 1 1 0 0 0 Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 5 WSDOT Adapted Form - March 2, 2015 Wetland name or number B D 4.1. Characteristics of surface water outflows from the wetland: points = 4 points = 2 points = 1 points = 0 Marks of ponding are 3 ft or more above the surface or bottom of outlet points = 7 Marks of ponding between 2 ft to < 3 ft from surface or bottom of outlet points = 5 Marks are at least 0.5 ft to < 2 ft from surface or bottom of outlet points = 3 The wetland is a “headwater” wetland points = 3 Wetland is flat but has small depressions on the surface that trap water points = 1 Marks of ponding less than 0.5 ft (6 in) points = 0 The area of the basin is less than 10 times the area of the unit points = 5 The area of the basin is 10 to 100 times the area of the unit points = 3 The area of the basin is more than 100 times the area of the unit points = 0 Entire wetland is in the Flats class points = 5 Total for D 4 Add the points in the boxes above 11 Rating of Site Potential If score is: 12 - 16 = H 6 - 11 = M 0 - 5 = L Record the rating on the first page D 5.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 1 D 5.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate excess runoff? Yes = 1 No = 0 Yes = 1 No = 0 Total for D 5 Add the points in the boxes above 2 Rating of Landscape Potential If score is: 3 = H 1 or 2 = M 0 = L Record the rating on the first page points = 2 points = 1 Flooding from groundwater is an issue in the sub-basin.points = 1 points = 0 There are no problems with flooding downstream of the wetland.points = 0 Yes = 2 No = 0 Total for D 6 Add the points in the boxes above 1 Rating of Value If score is: 2 - 4 = H 1 = M 0 = L Record the rating on the first page DEPRESSIONAL AND FLATS WETLANDS D 6.0. Are the hydrologic functions provided by the site valuable to society? The wetland captures surface water that would otherwise flow down-gradient into areas where flooding has damaged human or natural resources (e.g., houses or salmon redds): Flooding occurs in a sub-basin that is immediately down- gradient of unit. Surface flooding problems are in a sub-basin farther down- gradient. Hydrologic Functions - Indicators that the site functions to reduce flooding and stream degradation D 4.0. Does the site have the potential to reduce flooding and erosion? 4 Wetland is a depression or flat depression with no surface water leaving it (no outlet) Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch 0 D 5.0. Does the landscape have the potential to support hydrologic function of the site? 1 0 D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human land uses (residential at >1 residence/ac, urban, commercial, agriculture, etc.)? The existing or potential outflow from the wetland is so constrained by human or natural conditions that the water stored by the wetland cannot reach areas that flood. Explain why 1 0 7 D 4.2. Depth of storage during wet periods: Estimate the height of ponding above the bottom of the outlet. For wetlands with no outlet, measure from the surface of permanent water or if dry, the deepest part. D 4.3. Contribution of the wetland to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself. D 6.1. The unit is in a landscape that has flooding problems. Choose the description that best matches conditions around the wetland unit being rated. Do not add points. Choose the highest score if more than one condition is met. D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 6 WSDOT Adapted Form - March 2, 2015 Wetland name or number B HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? Aquatic bed 4 structures or more: points = 4 Emergent 3 structures: points = 2 Scrub-shrub (areas where shrubs have > 30% cover)2 structures: points - 1 Forested (areas where trees have > 30% cover)1 structure: points = 0 If the unit has a Forested class, check if : H 1.2. Hydroperiods Permanently flooded or inundated 4 or more types present: points = 3 Seasonally flooded or inundated 3 types present: points = 2 Occasionally flooded or inundated 2 types present: points = 1 Saturated only 1 types present: points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake Fringe wetland 2 points Freshwater tidal wetland 2 points H 1.3. Richness of plant species If you counted: > 19 species points = 2 5 - 19 species points = 1 < 5 species points = 0 H 1.4. Interspersion of habitats These questions apply to wetlands of all HGM classes. The Forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon 0 H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold of ¼ ac or more than 10% of the unit if it is smaller than 2.5 ac. Add the number of structures checked. None = 0 points Low = 1 point Moderate = 2 points All three diagrams in this row are HIGH = 3 points 1 Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or ¼ ac to count (see text for descriptions of hydroperiods ). 0 Count the number of plant species in the wetland that cover at least 10 ft2. Different patches of the same species can be combined to meet the size threshold and you do not have to name the species. Do not include Eurasian milfoil, reed canarygrass, purple loosestrife, Canadian thistle 1 Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, low, or none. If you have four or more plant classes or three classes and open water, the rating is always high. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 7 WSDOT Adapted Form - March 2, 2015 Wetland name or number B H 1.5. Special habitat features: Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long) Standing snags (dbh > 4 in) within the wetland Total for H 1 Add the points in the boxes above 4 Rating of Site Potential If Score is: 15 - 18 = H 7 - 14 = M 0 - 6 = L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat function of the site? H 2.1 Accessible habitat (include only habitat that directly abuts wetland unit ). Calculate: % undisturbed habitat + (% moderate & low intensity land uses / 2 ) = If total accessible habitat is: > 1/3 (33.3%) of 1 km Polygon points = 3 20 - 33% of 1 km Polygon points = 2 10 - 19% of 1 km Polygon points = 1 < 10 % of 1 km Polygon points = 0 H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: % undisturbed habitat + (% moderate & low intensity land uses / 2 ) = Undisturbed habitat > 50% of Polygon points = 3 Undisturbed habitat 10 - 50% and in 1-3 patches points = 2 Undisturbed habitat 10 - 50% and > 3 patches points = 1 Undisturbed habitat < 10% of 1 km Polygon points = 0 H 2.3 Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points = (-2) ≤ 50% of 1km Polygon is high intensity points = 0 Total for H 2 Add the points in the boxes above 3 Rating of Landscape Potential If Score is: 4 - 6 = H 1 - 3 = M < 1 = L Record the rating on the first page Site meets ANY of the following criteria:points = 2 It has 3 or more priority habitats within 100 m (see next page) It is mapped as a location for an individual WDFW priority species Site has 1 or 2 priority habitats (listed on next page) with in 100m points = 1 Site does not meet any of the criteria above points = 0 Rating of Value If Score is: 2 = H 1 = M 0 = L Record the rating on the first page 1 2 0 H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score that applies to the wetland being rated . It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) It is a Wetland of High Conservation Value as determined by the Department of Natural Resources 1 Invasive plants cover less than 25% of the wetland area in every stratum of plants (see H 1.1 for list of strata ) Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet weathered where wood is exposed ) At least ¼ ac of thin-stemmed persistent plants or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians ) 2 Check the habitat features that are present in the wetland. The number of checks is the number of points. It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 8 WSDOT Adapted Form - March 2, 2015 Wetland name or number B Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha). Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. Cliffs: Greater than 25 ft (7.6 m) high and occurring below 5000 ft elevation. http://wdfw.wa.gov/publications/00165/wdfw00165.pdf or access the list from here: http://wdfw.wa.gov/conservation/phs/list/ Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth in soils, rock, ice, or other geological formations and is large enough to contain a human. Note: All vegetated wetlands are by definition a priority habitat but are not included in this list because they are addressed elsewhere. WDFW Priority Habitats Count how many of the following priority habitats are within 330 ft (100 m) of the wetland unit: NOTE : This question is independent of the land use between the wetland unit and the priority habitat. Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (full descriptions in WDFW PHS report ). Old-growth/Mature forests: Old-growth west of Cascade crest – Stands of at least 2 tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) > 32 in (81 cm) dbh or > 200 years of age. Mature forests – Stands with average diameters exceeding 21 in (53 cm) dbh; crown cover may be less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth; 80-200 years old west of the Cascade crest. Priority habitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympia, Washington. 177 pp. Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 – see web link above ). Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. Westside Prairies: Herbaceous, non-forested plant communities that can either take the form of a dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161 – see web link above ). Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. (full descriptions of habitats and the definition of relatively undisturbed are in WDFW report – see web link on previous page ). Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast height of > 20 in (51 cm) in western Washington and are > 6.5 ft (2 m) in height. Priority logs are > 12 in (30 cm) in diameter at the largest end, and > 20 ft (6 m) long. Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0.15 - 2.0 m), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 9 WSDOT Adapted Form - March 2, 2015 Wetland name or number B Wetland Type Category Check off any criteria that apply to the wetland. List the category when the appropriate criteria are met. SC 1.0. Estuarine Wetlands Does the wetland meet the following criteria for Estuarine wetlands? The dominant water regime is tidal, Vegetated, and With a salinity greater than 0.5 ppt Yes - Go to SC 1.1 No = Not an estuarine wetland SC 1.1. Yes = Category I No - Go to SC 1.2 SC 1.2.Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions? Yes = Category I No = Category II SC 2.0. Wetlands of High Conservation Value (WHCV) SC 2.1. Yes - Go to SC 2.2 No - Go to SC 2.3 SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? Yes = Category I No = Not WHCV SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://www1.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.pdf Yes - Contact WNHP/WDNR and to SC 2.4 No = Not WHCV SC 2.4. Yes = Category I No = Not WHCV SC 3.0. Bogs SC 3.1. Yes - Go to SC 3.3 No - Go to SC 3.2 SC 3.2. Yes - Go to SC 3.3 No = Is not a bog SC 3.3. Yes = Is a Category I bog No - Go to SC 3.4 SC 3.4. Yes = Is a Category I bog No = Is not a bog Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Value and listed it on their website? Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High Conservation Value? Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below. If you answer YES you will still need to rate the wetland based on its functions . Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or more of the first 32 in of the soil profile? Does an area within the wetland unit have organic soils, either peats or mucks, that are less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on top of a lake or pond? Does an area with peats or mucks have more than 70% cover of mosses at ground level, AND at least a 30% cover of plant species listed in Table 4? NOTE: If you are uncertain about the extent of mosses in the understory, you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present, the wetland is a bog. Is an area with peats or mucks forested (> 30% cover) with Sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Engelmann spruce, or western white pine, AND any of the species (or combination of species) listed in Table 4 provide more than 30% of the cover under the canopy? CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Is the wetland within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC 332-30-151? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. (If non-native species are Spartina , see page 25) At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un- grazed or un-mowed grassland. The wetland has at least two of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 10 WSDOT Adapted Form - March 2, 2015 Wetland name or number B SC 4.0. Forested Wetlands Yes = Category I No = Not a forested wetland for this section SC 5.0. Wetlands in Coastal Lagoons Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? Yes - Go to SC 5.1 No = Not a wetland in a coastal lagoon SC 5.1. Does the wetland meet all of the following three conditions? The wetland is larger than 1/10 ac (4350 ft2) Yes = Category I No = Category II SC 6.0. Interdunal Wetlands In practical terms that means the following geographic areas: Long Beach Peninsula: Lands west of SR 103 Grayland-Westport: Lands west of SR 105 Ocean Shores-Copalis: Lands west of SR 115 and SR 109 Yes - Go to SC 6.1 No = Not an interdunal wetland for rating SC 6.1. Yes = Category I No - Go to SC 6.2 SC 6.2. Is the wetland 1 ac or larger, or is it in a mosaic of wetlands that is 1 ac or larger? Yes = Category II No - Go to SC 6.3 SC 6.3. Yes = Category III No = Category IV Category of wetland based on Special Characteristics If you answered No for all types, enter “Not Applicable” on Summary Form The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks The lagoon in which the wetland is located contains ponded water that is saline or brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the bottom ) Does the wetland have at least 1 contiguous acre of forest that meets one of these criteria for the WA Department of Fish and Wildlife’s forests as priority habitats? If you answer YES you will still need to rate the wetland based on its functions. Old-growth forests (west of Cascade crest): Stands of at least two tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 in (81 cm) or more. Mature forests (west of the Cascade Crest): Stands where the largest trees are 80- 200 years old OR the species that make up the canopy have an average diameter (dbh) exceeding 21 in (53 cm). The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less than 20% cover of aggressive, opportunistic plant species (see list of species on p. 100). At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un- grazed or un-mowed grassland. Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? If you answer yes you will still need to rate the wetland based on its habitat functions. Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form (rates H,H,H or H,H,M for the three aspects of function)? Is the unit between 0.1 and 1 ac, or is it in a mosaic of wetlands that is between 0.1 and 1 ac? Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 11 WSDOT Adapted Form - March 2, 2015 Wetland name or number C Name of wetland (or ID #):Date of site visit: 6/24/2021 Rated by Trained by Ecology? Yes No Date of training 23-May-21 HGM Class used for rating Wetland has multiple HGM classes? Yes No NOTE: Form is not complete with out the figures requested (figures can be combined ). Source of base aerial photo/map OVERALL WETLAND CATEGORY II (based on functions or special characteristics ) 1. Category of wetland based on FUNCTIONS Category I - Total score = 23 - 27 Score for each X Category II - Total score = 20 - 22 function based Category III - Total score = 16 - 19 on three Category IV - Total score = 9 - 15 ratings (order of ratings is not important ) M M 9 = H, H, H M M 8 = H, H, M MMTotal 7 = H, H, L 7 = H, M, M 6 = H, M, L 6 = M, M, M 5 = H, L, L 5 = M, M, L 4 = M, L, L 3 = L, L, L 2. Category based on SPECIAL CHARACTERISTICS of wetland None of the above Coastal Lagoon Interdunal Value Score Based on Ratings 86620 H CHARACTERISTIC Category Estuarine Wetland of High Conservation Value Bog Mature Forest Old Growth Forest Depressional & Flats RATING SUMMARY – Western Washington List appropriate rating (H, M, L) HydrologicImproving Water Quality MSite Potential Landscape Potential Habitat H FUNCTION Wetland C (Port Hadlock) Madeline Remmen Google Earth, GIS, WQ atlas Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 1 WSDOT Adapted Form - March 2, 2015 Wetland name or number C Maps and Figures required to answer questions correctly for Western Washington Depressional Wetlands Map of: Figure # Cowardin plant classes 1 Hydroperiods 2 Location of outlet (can be added to map of hydroperiods )2 Boundary of area within 150 ft of the wetland (can be added to another figure ) 5/// Map of the contributing basin 3 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) 6 Screen capture of list of TMDLs for WRIA in which unit is found (from web) 7 Riverine Wetlands Map of: Figure # Cowardin plant classes Hydroperiods Ponded depressions Boundary of area within 150 ft of the wetland (can be added to another figure ) Plant cover of trees, shrubs, and herbaceous plants Width of unit vs. width of stream (can be added to another figure ) Map of the contributing basin 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) Screen capture of list of TMDLs for WRIA in which unit is found (from web) Lake Fringe Wetlands Map of: Figure # Cowardin plant classes Plant cover of trees, shrubs, and herbaceous plants Boundary of area within 150 ft of the wetland (can be added to another figure ) 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) Screen capture of list of TMDLs for WRIA in which unit is found (from web) Slope Wetlands Map of: Figure # Cowardin plant classes Hydroperiods Plant cover of dense trees, shrubs, and herbaceous plants Plant cover of dense, rigid trees, shrubs, and herbaceous plants (can be added to another figure ) Boundary of area within 150 ft of the wetland (can be added to another figure ) 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) Screen capture of list of TMDLs for WRIA in which unit is found (from web) To answer questions: D 1.3, H 1.1, H 1.4 D 1.4, H 1.2 D 1.1, D 4.1 D 2.2, D 5.2 D 4.3, D 5.3 H 2.1, H 2.2, H 2.3 D 3.1, D 3.2 D 3.3 To answer questions: H 1.1, H 1.4 H 1.2 R 1.1 R 2.4 R 1.2, R 4.2 R 4.1 R 2.2, R 2.3, R 5.2 H 2.1, H 2.2, H 2.3 L 1.2 L 2.2 L 3.1, L 3.2 L 3.3 H 2.1, H 2.2, H 2.3 R 3.1 R 3.2, R 3.3 To answer questions: L 1.1, L 4.1, H 1.1, H 1.4 S 3.1, S 3.2 S 3.3 S 4.1 S 2.1, S 5.1 To answer questions: H 1.1, H 1.4 H 1.2 S 1.3 H 2.1, H 2.2, H 2.3 4//// Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 2 WSDOT Adapted Form - March 2, 2015 Wetland name or number C For questions 1 -7, the criteria described must apply to the entire unit being rated. 1. Are the water levels in the entire unit usually controlled by tides except during floods? NO - go to 2 YES - the wetland class is Tidal Fringe - go to 1.1 1.1 Is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? NO - Saltwater Tidal Fringe (Estuarine) YES - Freshwater Tidal Fringe NO - go to 3 YES - The wetland class is Flats If your wetland can be classified as a Flats wetland, use the form for Depressional wetlands. 3. Does the entire wetland unit meet all of the following criteria? NO - go to 4 YES - The wetland class is Lake Fringe (Lacustrine Fringe) 4. Does the entire wetland unit meet all of the following criteria? The wetland is on a slope (slope can be very gradual ), The water leaves the wetland without being impounded. NO - go to 5 YES - The wetland class is Slope 5. Does the entire wetland unit meet all of the following criteria? The overbank flooding occurs at least once every 2 years. NO - go to 6 YES - The wetland class is Riverine NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding. If hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1 - 7 apply, and go to Question 8. At least 30% of the open water area is deeper than 6.6 ft (2 m). HGM Classification of Wetland in Western Washington If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may flow subsurface, as sheetflow, or in a swale without distinct banks. NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 ft deep). The unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river, 2. The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 3 WSDOT Adapted Form - March 2, 2015 Wetland name or number C NO - go to 7 YES - The wetland class is Depressional NO - go to 8 YES - The wetland class is Depressional NOTES and FIELD OBSERVATIONS: 7. Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding? The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched, but has no obvious natural outlet. 8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a Depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within the wetland unit being scored. 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during the year? This means that any outlet, if present, is higher than the interior of the wetland. Riverine Treat as ESTUARINE Slope + Lake Fringe Depressional + Riverine along stream within boundary of depression Depressional + Lake Fringe Riverine + Lake Fringe NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the HGM class listed in column 2 is less than 10% of the unit; classify the wetland using the class that represents more than 90% of the total area. HGM classes within the wetland unit being rated Slope + Riverine Slope + Depressional Depressional Depressional If you are still unable to determine which of the above criteria apply to your wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Salt Water Tidal Fringe and any other class of freshwater wetland HGM class to use in rating Riverine Depressional Lake Fringe Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 4 WSDOT Adapted Form - March 2, 2015 Wetland name or number C D 1.1. Characteristics of surface water outflows from the wetland: points = 3 points = 2 points = 1 points = 1 Yes = 4 No = 0 Wetland has persistent, ungrazed, plants > 95% of area points = 5 Wetland has persistent, ungrazed, plants > ½ of area points = 3 Wetland has persistent, ungrazed plants > 1/10 of area points = 1 Wetland has persistent, ungrazed plants < 1/10 of area points = 0 D 1.4. Characteristics of seasonal ponding or inundation: This is the area that is ponded for at least 2 months. See description in manual. Area seasonally ponded is > ½ total area of wetland points = 4 Area seasonally ponded is > ¼ total area of wetland points = 2 Area seasonally ponded is < ¼ total area of wetland points = 0 Total for D 1 Add the points in the boxes above 8 Rating of Site Potential If score is: 12 - 16 = H 6 - 11 = M 0 - 5 = L Record the rating on the first page D 2.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 1 Yes = 1 No = 0 D 2.3. Are there septic systems within 250 ft of the wetland? Yes = 1 No = 0 1 Source Yes = 1 No = 0 Total for D 2 Add the points in the boxes above 4 Rating of Landscape Potential If score is: 3 or 4 = H 1 or 2 = M 0 = L Record the rating on the first page Yes = 1 No = 0 Yes = 1 No = 0 Yes = 2 No = 0 Total for D 3 Add the points in the boxes above 2 Rating of Value If score is: 2 - 4 = H 1 = M 0 = L Record the rating on the first page D 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality (answer YES if there is a TMDL for the basin in which the unit is found )? D 1.2. The soil 2 in below the surface (or duff layer) is true clay or true organic (use NRCS definitions ). D 1.3. Characteristics and distribution of persistent plants (Emergent, Scrub-shrub, and/or Forested Cowardin classes): D 2.4. Are there other sources of pollutants coming into the wetland that are not listed in questions D 2.1 - D 2.3? D 3.1. Does the wetland discharge directly (i.e., within 1 mi) to a stream, river, lake, or marine water that is on the 303(d) list? D 2.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate pollutants? D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d) list? D 3.0. Is the water quality improvement provided by the site valuable to society? 1 1 0 0 5 DEPRESSIONAL AND FLATS WETLANDS 1 1 Water Quality Functions - Indicators that the site functions to improve water quality D 1.0. Does the site have the potential to improve water quality? 1 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet. Wetland is a depression or flat depression (QUESTION 7 on key) with no surface water leaving it (no outlet). Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch. 2 D 2.0. Does the landscape have the potential to support the water quality function of the site? Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 5 WSDOT Adapted Form - March 2, 2015 Wetland name or number C D 4.1. Characteristics of surface water outflows from the wetland: points = 4 points = 2 points = 1 points = 0 Marks of ponding are 3 ft or more above the surface or bottom of outlet points = 7 Marks of ponding between 2 ft to < 3 ft from surface or bottom of outlet points = 5 Marks are at least 0.5 ft to < 2 ft from surface or bottom of outlet points = 3 The wetland is a “headwater” wetland points = 3 Wetland is flat but has small depressions on the surface that trap water points = 1 Marks of ponding less than 0.5 ft (6 in) points = 0 The area of the basin is less than 10 times the area of the unit points = 5 The area of the basin is 10 to 100 times the area of the unit points = 3 The area of the basin is more than 100 times the area of the unit points = 0 Entire wetland is in the Flats class points = 5 Total for D 4 Add the points in the boxes above 8 Rating of Site Potential If score is: 12 - 16 = H 6 - 11 = M 0 - 5 = L Record the rating on the first page D 5.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 1 D 5.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate excess runoff? Yes = 1 No = 0 Yes = 1 No = 0 Total for D 5 Add the points in the boxes above 2 Rating of Landscape Potential If score is: 3 = H 1 or 2 = M 0 = L Record the rating on the first page points = 2 points = 1 Flooding from groundwater is an issue in the sub-basin.points = 1 points = 0 There are no problems with flooding downstream of the wetland.points = 0 Yes = 2 No = 0 Total for D 6 Add the points in the boxes above 1 Rating of Value If score is: 2 - 4 = H 1 = M 0 = L Record the rating on the first page 1 0 D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human land uses (residential at >1 residence/ac, urban, commercial, agriculture, etc.)? The existing or potential outflow from the wetland is so constrained by human or natural conditions that the water stored by the wetland cannot reach areas that flood. Explain why 1 0 5 D 4.2. Depth of storage during wet periods: Estimate the height of ponding above the bottom of the outlet. For wetlands with no outlet, measure from the surface of permanent water or if dry, the deepest part. D 4.3. Contribution of the wetland to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself. D 6.1. The unit is in a landscape that has flooding problems. Choose the description that best matches conditions around the wetland unit being rated. Do not add points. Choose the highest score if more than one condition is met. D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Hydrologic Functions - Indicators that the site functions to reduce flooding and stream degradation D 4.0. Does the site have the potential to reduce flooding and erosion? 0 Wetland is a depression or flat depression with no surface water leaving it (no outlet) Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch 3 D 5.0. Does the landscape have the potential to support hydrologic function of the site? D 6.0. Are the hydrologic functions provided by the site valuable to society? The wetland captures surface water that would otherwise flow down-gradient into areas where flooding has damaged human or natural resources (e.g., houses or salmon redds): Flooding occurs in a sub-basin that is immediately down- gradient of unit. Surface flooding problems are in a sub-basin farther down- gradient. DEPRESSIONAL AND FLATS WETLANDS Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 6 WSDOT Adapted Form - March 2, 2015 Wetland name or number C HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? Aquatic bed 4 structures or more: points = 4 Emergent 3 structures: points = 2 Scrub-shrub (areas where shrubs have > 30% cover)2 structures: points - 1 Forested (areas where trees have > 30% cover)1 structure: points = 0 If the unit has a Forested class, check if : H 1.2. Hydroperiods Permanently flooded or inundated 4 or more types present: points = 3 Seasonally flooded or inundated 3 types present: points = 2 Occasionally flooded or inundated 2 types present: points = 1 Saturated only 1 types present: points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake Fringe wetland 2 points Freshwater tidal wetland 2 points H 1.3. Richness of plant species If you counted: > 19 species points = 2 5 - 19 species points = 1 < 5 species points = 0 H 1.4. Interspersion of habitats None = 0 points Low = 1 point Moderate = 2 points All three diagrams in this row are HIGH = 3 points 3 Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or ¼ ac to count (see text for descriptions of hydroperiods ). 2 Count the number of plant species in the wetland that cover at least 10 ft2. Different patches of the same species can be combined to meet the size threshold and you do not have to name the species. Do not include Eurasian milfoil, reed canarygrass, purple loosestrife, Canadian thistle 1 Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, low, or none. If you have four or more plant classes or three classes and open water, the rating is always high. These questions apply to wetlands of all HGM classes. The Forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon 1 H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold of ¼ ac or more than 10% of the unit if it is smaller than 2.5 ac. Add the number of structures checked. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 7 WSDOT Adapted Form - March 2, 2015 Wetland name or number C H 1.5. Special habitat features: Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long) Standing snags (dbh > 4 in) within the wetland Total for H 1 Add the points in the boxes above 10 Rating of Site Potential If Score is: 15 - 18 = H 7 - 14 = M 0 - 6 = L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat function of the site? H 2.1 Accessible habitat (include only habitat that directly abuts wetland unit ). Calculate: % undisturbed habitat + (% moderate & low intensity land uses / 2 ) = If total accessible habitat is: > 1/3 (33.3%) of 1 km Polygon points = 3 20 - 33% of 1 km Polygon points = 2 10 - 19% of 1 km Polygon points = 1 < 10 % of 1 km Polygon points = 0 H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: % undisturbed habitat + (% moderate & low intensity land uses / 2 ) = Undisturbed habitat > 50% of Polygon points = 3 Undisturbed habitat 10 - 50% and in 1-3 patches points = 2 Undisturbed habitat 10 - 50% and > 3 patches points = 1 Undisturbed habitat < 10% of 1 km Polygon points = 0 H 2.3 Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points = (-2) ≤ 50% of 1km Polygon is high intensity points = 0 Total for H 2 Add the points in the boxes above 1 Rating of Landscape Potential If Score is: 4 - 6 = H 1 - 3 = M < 1 = L Record the rating on the first page Site meets ANY of the following criteria:points = 2 It has 3 or more priority habitats within 100 m (see next page) It is mapped as a location for an individual WDFW priority species Site has 1 or 2 priority habitats (listed on next page) with in 100m points = 1 Site does not meet any of the criteria above points = 0 Rating of Value If Score is: 2 = H 1 = M 0 = L Record the rating on the first page Check the habitat features that are present in the wetland. The number of checks is the number of points. It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet weathered where wood is exposed ) At least ¼ ac of thin-stemmed persistent plants or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians ) 3 It is a Wetland of High Conservation Value as determined by the Department of Natural Resources 1 Invasive plants cover less than 25% of the wetland area in every stratum of plants (see H 1.1 for list of strata ) 1 2 -2 H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score that applies to the wetland being rated . It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 8 WSDOT Adapted Form - March 2, 2015 Wetland name or number C Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha). Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. Cliffs: Greater than 25 ft (7.6 m) high and occurring below 5000 ft elevation. Priority habitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympia, Washington. 177 pp. Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 – see web link above ). Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. Westside Prairies: Herbaceous, non-forested plant communities that can either take the form of a dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161 – see web link above ). Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. (full descriptions of habitats and the definition of relatively undisturbed are in WDFW report – see web link on previous page ). Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast height of > 20 in (51 cm) in western Washington and are > 6.5 ft (2 m) in height. Priority logs are > 12 in (30 cm) in diameter at the largest end, and > 20 ft (6 m) long. Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0.15 - 2.0 m), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth in soils, rock, ice, or other geological formations and is large enough to contain a human. Note: All vegetated wetlands are by definition a priority habitat but are not included in this list because they are addressed elsewhere. WDFW Priority Habitats Count how many of the following priority habitats are within 330 ft (100 m) of the wetland unit: NOTE : This question is independent of the land use between the wetland unit and the priority habitat. Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (full descriptions in WDFW PHS report ). Old-growth/Mature forests: Old-growth west of Cascade crest – Stands of at least 2 tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) > 32 in (81 cm) dbh or > 200 years of age. Mature forests – Stands with average diameters exceeding 21 in (53 cm) dbh; crown cover may be less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth; 80-200 years old west of the Cascade crest. http://wdfw.wa.gov/publications/00165/wdfw00165.pdf or access the list from here: http://wdfw.wa.gov/conservation/phs/list/ Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 9 WSDOT Adapted Form - March 2, 2015 Wetland name or number C Wetland Type Category Check off any criteria that apply to the wetland. List the category when the appropriate criteria are met. SC 1.0. Estuarine Wetlands Does the wetland meet the following criteria for Estuarine wetlands? The dominant water regime is tidal, Vegetated, and With a salinity greater than 0.5 ppt Yes - Go to SC 1.1 No = Not an estuarine wetland SC 1.1. Yes = Category I No - Go to SC 1.2 SC 1.2.Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions? Yes = Category I No = Category II SC 2.0. Wetlands of High Conservation Value (WHCV) SC 2.1. Yes - Go to SC 2.2 No - Go to SC 2.3 SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? Yes = Category I No = Not WHCV SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://www1.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.pdf Yes - Contact WNHP/WDNR and to SC 2.4 No = Not WHCV SC 2.4. Yes = Category I No = Not WHCV SC 3.0. Bogs SC 3.1. Yes - Go to SC 3.3 No - Go to SC 3.2 SC 3.2. Yes - Go to SC 3.3 No = Is not a bog SC 3.3. Yes = Is a Category I bog No - Go to SC 3.4 SC 3.4. Yes = Is a Category I bog No = Is not a bog NOTE: If you are uncertain about the extent of mosses in the understory, you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present, the wetland is a bog. Is an area with peats or mucks forested (> 30% cover) with Sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Engelmann spruce, or western white pine, AND any of the species (or combination of species) listed in Table 4 provide more than 30% of the cover under the canopy? CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Is the wetland within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC 332-30-151? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. (If non-native species are Spartina , see page 25) At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un- grazed or un-mowed grassland. The wetland has at least two of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Value and listed it on their website? Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High Conservation Value? Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below. If you answer YES you will still need to rate the wetland based on its functions . Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or more of the first 32 in of the soil profile? Does an area within the wetland unit have organic soils, either peats or mucks, that are less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on top of a lake or pond? Does an area with peats or mucks have more than 70% cover of mosses at ground level, AND at least a 30% cover of plant species listed in Table 4? Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 10 WSDOT Adapted Form - March 2, 2015 Wetland name or number C SC 4.0. Forested Wetlands Yes = Category I No = Not a forested wetland for this section SC 5.0. Wetlands in Coastal Lagoons Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? Yes - Go to SC 5.1 No = Not a wetland in a coastal lagoon SC 5.1. Does the wetland meet all of the following three conditions? The wetland is larger than 1/10 ac (4350 ft2) Yes = Category I No = Category II SC 6.0. Interdunal Wetlands In practical terms that means the following geographic areas: Long Beach Peninsula: Lands west of SR 103 Grayland-Westport: Lands west of SR 105 Ocean Shores-Copalis: Lands west of SR 115 and SR 109 Yes - Go to SC 6.1 No = Not an interdunal wetland for rating SC 6.1. Yes = Category I No - Go to SC 6.2 SC 6.2. Is the wetland 1 ac or larger, or is it in a mosaic of wetlands that is 1 ac or larger? Yes = Category II No - Go to SC 6.3 SC 6.3. Yes = Category III No = Category IV Category of wetland based on Special Characteristics If you answered No for all types, enter “Not Applicable” on Summary Form The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less than 20% cover of aggressive, opportunistic plant species (see list of species on p. 100). At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un- grazed or un-mowed grassland. Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? If you answer yes you will still need to rate the wetland based on its habitat functions. Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form (rates H,H,H or H,H,M for the three aspects of function)? Is the unit between 0.1 and 1 ac, or is it in a mosaic of wetlands that is between 0.1 and 1 ac? The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks The lagoon in which the wetland is located contains ponded water that is saline or brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the bottom ) Does the wetland have at least 1 contiguous acre of forest that meets one of these criteria for the WA Department of Fish and Wildlife’s forests as priority habitats? If you answer YES you will still need to rate the wetland based on its functions. Old-growth forests (west of Cascade crest): Stands of at least two tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 in (81 cm) or more. Mature forests (west of the Cascade Crest): Stands where the largest trees are 80- 200 years old OR the species that make up the canopy have an average diameter (dbh) exceeding 21 in (53 cm). Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 11 WSDOT Adapted Form - March 2, 2015 Wetland name or number D Name of wetland (or ID #):Date of site visit: 6/24/2021 Rated by Trained by Ecology? Yes No Date of training 23-Mar-19 HGM Class used for rating Wetland has multiple HGM classes? Yes No NOTE: Form is not complete with out the figures requested (figures can be combined ). Source of base aerial photo/map OVERALL WETLAND CATEGORY II (based on functions or special characteristics ) 1. Category of wetland based on FUNCTIONS Category I - Total score = 23 - 27 Score for each X Category II - Total score = 20 - 22 function based Category III - Total score = 16 - 19 on three Category IV - Total score = 9 - 15 ratings (order of ratings is not important ) H M 9 = H, H, H M M 8 = H, H, M MMTotal 7 = H, H, L 7 = H, M, M 6 = H, M, L 6 = M, M, M 5 = H, L, L 5 = M, M, L 4 = M, L, L 3 = L, L, L 2. Category based on SPECIAL CHARACTERISTICS of wetland None of the above Coastal Lagoon Interdunal Value Score Based on Ratings 97622 H CHARACTERISTIC Category Estuarine Wetland of High Conservation Value Bog Mature Forest Old Growth Forest Depressional & Flats RATING SUMMARY – Western Washington List appropriate rating (H, M, L) HydrologicImproving Water Quality HSite Potential Landscape Potential Habitat H FUNCTION Wetland D (Port Hadlock) Claire Hoffman Google Earth, GIS, WQ atlas Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 1 WSDOT Adapted Form - March 2, 2015 Wetland name or number D Maps and Figures required to answer questions correctly for Western Washington Depressional Wetlands Map of: Figure # Cowardin plant classes 1 Hydroperiods 2 Location of outlet (can be added to map of hydroperiods )2 Boundary of area within 150 ft of the wetland (can be added to another figure ) 5/// Map of the contributing basin 3 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) 6 Screen capture of list of TMDLs for WRIA in which unit is found (from web) 7 Riverine Wetlands Map of: Figure # Cowardin plant classes Hydroperiods Ponded depressions Boundary of area within 150 ft of the wetland (can be added to another figure ) Plant cover of trees, shrubs, and herbaceous plants Width of unit vs. width of stream (can be added to another figure ) Map of the contributing basin 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) Screen capture of list of TMDLs for WRIA in which unit is found (from web) Lake Fringe Wetlands Map of: Figure # Cowardin plant classes Plant cover of trees, shrubs, and herbaceous plants Boundary of area within 150 ft of the wetland (can be added to another figure ) 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) Screen capture of list of TMDLs for WRIA in which unit is found (from web) Slope Wetlands Map of: Figure # Cowardin plant classes Hydroperiods Plant cover of dense trees, shrubs, and herbaceous plants Plant cover of dense, rigid trees, shrubs, and herbaceous plants (can be added to another figure ) Boundary of area within 150 ft of the wetland (can be added to another figure ) 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Screen capture of map of 303(d) listed waters in basin (from Ecology website) Screen capture of list of TMDLs for WRIA in which unit is found (from web) To answer questions: D 1.3, H 1.1, H 1.4 D 1.4, H 1.2 D 1.1, D 4.1 D 2.2, D 5.2 D 4.3, D 5.3 H 2.1, H 2.2, H 2.3 D 3.1, D 3.2 D 3.3 To answer questions: H 1.1, H 1.4 H 1.2 R 1.1 R 2.4 R 1.2, R 4.2 R 4.1 R 2.2, R 2.3, R 5.2 H 2.1, H 2.2, H 2.3 L 1.2 L 2.2 L 3.1, L 3.2 L 3.3 H 2.1, H 2.2, H 2.3 R 3.1 R 3.2, R 3.3 To answer questions: L 1.1, L 4.1, H 1.1, H 1.4 S 3.1, S 3.2 S 3.3 S 4.1 S 2.1, S 5.1 To answer questions: H 1.1, H 1.4 H 1.2 S 1.3 H 2.1, H 2.2, H 2.3 4//// Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 2 WSDOT Adapted Form - March 2, 2015 Wetland name or number D For questions 1 -7, the criteria described must apply to the entire unit being rated. 1. Are the water levels in the entire unit usually controlled by tides except during floods? NO - go to 2 YES - the wetland class is Tidal Fringe - go to 1.1 1.1 Is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)? NO - Saltwater Tidal Fringe (Estuarine) YES - Freshwater Tidal Fringe NO - go to 3 YES - The wetland class is Flats If your wetland can be classified as a Flats wetland, use the form for Depressional wetlands. 3. Does the entire wetland unit meet all of the following criteria? NO - go to 4 YES - The wetland class is Lake Fringe (Lacustrine Fringe) 4. Does the entire wetland unit meet all of the following criteria? The wetland is on a slope (slope can be very gradual ), The water leaves the wetland without being impounded. NO - go to 5 YES - The wetland class is Slope 5. Does the entire wetland unit meet all of the following criteria? The overbank flooding occurs at least once every 2 years. NO - go to 6 YES - The wetland class is Riverine NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding. If hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1 - 7 apply, and go to Question 8. At least 30% of the open water area is deeper than 6.6 ft (2 m). HGM Classification of Wetland in Western Washington If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may flow subsurface, as sheetflow, or in a swale without distinct banks. NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 ft deep). The unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river, 2. The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 3 WSDOT Adapted Form - March 2, 2015 Wetland name or number D NO - go to 7 YES - The wetland class is Depressional NO - go to 8 YES - The wetland class is Depressional NOTES and FIELD OBSERVATIONS: 7. Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding? The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched, but has no obvious natural outlet. 8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a Depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within the wetland unit being scored. 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during the year? This means that any outlet, if present, is higher than the interior of the wetland. Riverine Treat as ESTUARINE Slope + Lake Fringe Depressional + Riverine along stream within boundary of depression Depressional + Lake Fringe Riverine + Lake Fringe NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the HGM class listed in column 2 is less than 10% of the unit; classify the wetland using the class that represents more than 90% of the total area. HGM classes within the wetland unit being rated Slope + Riverine Slope + Depressional Depressional Depressional If you are still unable to determine which of the above criteria apply to your wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Salt Water Tidal Fringe and any other class of freshwater wetland HGM class to use in rating Riverine Depressional Lake Fringe Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 4 WSDOT Adapted Form - March 2, 2015 Wetland name or number D D 1.1. Characteristics of surface water outflows from the wetland: points = 3 points = 2 points = 1 points = 1 Yes = 4 No = 0 Wetland has persistent, ungrazed, plants > 95% of area points = 5 Wetland has persistent, ungrazed, plants > ½ of area points = 3 Wetland has persistent, ungrazed plants > 1/10 of area points = 1 Wetland has persistent, ungrazed plants < 1/10 of area points = 0 D 1.4. Characteristics of seasonal ponding or inundation: This is the area that is ponded for at least 2 months. See description in manual. Area seasonally ponded is > ½ total area of wetland points = 4 Area seasonally ponded is > ¼ total area of wetland points = 2 Area seasonally ponded is < ¼ total area of wetland points = 0 Total for D 1 Add the points in the boxes above 12 Rating of Site Potential If score is: 12 - 16 = H 6 - 11 = M 0 - 5 = L Record the rating on the first page D 2.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 1 Yes = 1 No = 0 D 2.3. Are there septic systems within 250 ft of the wetland? Yes = 1 No = 0 1 Source Yes = 1 No = 0 Total for D 2 Add the points in the boxes above 3 Rating of Landscape Potential If score is: 3 or 4 = H 1 or 2 = M 0 = L Record the rating on the first page Yes = 1 No = 0 Yes = 1 No = 0 Yes = 2 No = 0 Total for D 3 Add the points in the boxes above 2 Rating of Value If score is: 2 - 4 = H 1 = M 0 = L Record the rating on the first page D 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality (answer YES if there is a TMDL for the basin in which the unit is found )? D 1.2. The soil 2 in below the surface (or duff layer) is true clay or true organic (use NRCS definitions ). D 1.3. Characteristics and distribution of persistent plants (Emergent, Scrub-shrub, and/or Forested Cowardin classes): D 2.4. Are there other sources of pollutants coming into the wetland that are not listed in questions D 2.1 - D 2.3? D 3.1. Does the wetland discharge directly (i.e., within 1 mi) to a stream, river, lake, or marine water that is on the 303(d) list? D 2.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate pollutants? D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d) list? D 3.0. Is the water quality improvement provided by the site valuable to society? 1 1 0 0 5 DEPRESSIONAL AND FLATS WETLANDS 1 0 Water Quality Functions - Indicators that the site functions to improve water quality D 1.0. Does the site have the potential to improve water quality? 3 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet. Wetland is a depression or flat depression (QUESTION 7 on key) with no surface water leaving it (no outlet). Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch. 4 D 2.0. Does the landscape have the potential to support the water quality function of the site? Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 5 WSDOT Adapted Form - March 2, 2015 Wetland name or number D D 4.1. Characteristics of surface water outflows from the wetland: points = 4 points = 2 points = 1 points = 0 Marks of ponding are 3 ft or more above the surface or bottom of outlet points = 7 Marks of ponding between 2 ft to < 3 ft from surface or bottom of outlet points = 5 Marks are at least 0.5 ft to < 2 ft from surface or bottom of outlet points = 3 The wetland is a “headwater” wetland points = 3 Wetland is flat but has small depressions on the surface that trap water points = 1 Marks of ponding less than 0.5 ft (6 in) points = 0 The area of the basin is less than 10 times the area of the unit points = 5 The area of the basin is 10 to 100 times the area of the unit points = 3 The area of the basin is more than 100 times the area of the unit points = 0 Entire wetland is in the Flats class points = 5 Total for D 4 Add the points in the boxes above 12 Rating of Site Potential If score is: 12 - 16 = H 6 - 11 = M 0 - 5 = L Record the rating on the first page D 5.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 1 D 5.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate excess runoff? Yes = 1 No = 0 Yes = 1 No = 0 Total for D 5 Add the points in the boxes above 2 Rating of Landscape Potential If score is: 3 = H 1 or 2 = M 0 = L Record the rating on the first page points = 2 points = 1 Flooding from groundwater is an issue in the sub-basin.points = 1 points = 0 There are no problems with flooding downstream of the wetland.points = 0 Yes = 2 No = 0 Total for D 6 Add the points in the boxes above 1 Rating of Value If score is: 2 - 4 = H 1 = M 0 = L Record the rating on the first page 1 0 D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human land uses (residential at >1 residence/ac, urban, commercial, agriculture, etc.)? The existing or potential outflow from the wetland is so constrained by human or natural conditions that the water stored by the wetland cannot reach areas that flood. Explain why 1 0 5 D 4.2. Depth of storage during wet periods: Estimate the height of ponding above the bottom of the outlet. For wetlands with no outlet, measure from the surface of permanent water or if dry, the deepest part. D 4.3. Contribution of the wetland to storage in the watershed: Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself. D 6.1. The unit is in a landscape that has flooding problems. Choose the description that best matches conditions around the wetland unit being rated. Do not add points. Choose the highest score if more than one condition is met. D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Hydrologic Functions - Indicators that the site functions to reduce flooding and stream degradation D 4.0. Does the site have the potential to reduce flooding and erosion? 4 Wetland is a depression or flat depression with no surface water leaving it (no outlet) Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch 3 D 5.0. Does the landscape have the potential to support hydrologic function of the site? D 6.0. Are the hydrologic functions provided by the site valuable to society? The wetland captures surface water that would otherwise flow down-gradient into areas where flooding has damaged human or natural resources (e.g., houses or salmon redds): Flooding occurs in a sub-basin that is immediately down- gradient of unit. Surface flooding problems are in a sub-basin farther down- gradient. DEPRESSIONAL AND FLATS WETLANDS Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 6 WSDOT Adapted Form - March 2, 2015 Wetland name or number D HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? Aquatic bed 4 structures or more: points = 4 Emergent 3 structures: points = 2 Scrub-shrub (areas where shrubs have > 30% cover)2 structures: points - 1 Forested (areas where trees have > 30% cover)1 structure: points = 0 If the unit has a Forested class, check if : H 1.2. Hydroperiods Permanently flooded or inundated 4 or more types present: points = 3 Seasonally flooded or inundated 3 types present: points = 2 Occasionally flooded or inundated 2 types present: points = 1 Saturated only 1 types present: points = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake Fringe wetland 2 points Freshwater tidal wetland 2 points H 1.3. Richness of plant species If you counted: > 19 species points = 2 5 - 19 species points = 1 < 5 species points = 0 H 1.4. Interspersion of habitats None = 0 points Low = 1 point Moderate = 2 points All three diagrams in this row are HIGH = 3 points 2 Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or ¼ ac to count (see text for descriptions of hydroperiods ). 1 Count the number of plant species in the wetland that cover at least 10 ft2. Different patches of the same species can be combined to meet the size threshold and you do not have to name the species. Do not include Eurasian milfoil, reed canarygrass, purple loosestrife, Canadian thistle 1 Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, low, or none. If you have four or more plant classes or three classes and open water, the rating is always high. These questions apply to wetlands of all HGM classes. The Forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon 1 H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold of ¼ ac or more than 10% of the unit if it is smaller than 2.5 ac. Add the number of structures checked. Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 7 WSDOT Adapted Form - March 2, 2015 Wetland name or number D H 1.5. Special habitat features: Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long) Standing snags (dbh > 4 in) within the wetland Total for H 1 Add the points in the boxes above 7 Rating of Site Potential If Score is: 15 - 18 = H 7 - 14 = M 0 - 6 = L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat function of the site? H 2.1 Accessible habitat (include only habitat that directly abuts wetland unit ). Calculate: % undisturbed habitat + (% moderate & low intensity land uses / 2 ) = If total accessible habitat is: > 1/3 (33.3%) of 1 km Polygon points = 3 20 - 33% of 1 km Polygon points = 2 10 - 19% of 1 km Polygon points = 1 < 10 % of 1 km Polygon points = 0 H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. Calculate: % undisturbed habitat + (% moderate & low intensity land uses / 2 ) = Undisturbed habitat > 50% of Polygon points = 3 Undisturbed habitat 10 - 50% and in 1-3 patches points = 2 Undisturbed habitat 10 - 50% and > 3 patches points = 1 Undisturbed habitat < 10% of 1 km Polygon points = 0 H 2.3 Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points = (-2) ≤ 50% of 1km Polygon is high intensity points = 0 Total for H 2 Add the points in the boxes above 1 Rating of Landscape Potential If Score is: 4 - 6 = H 1 - 3 = M < 1 = L Record the rating on the first page Site meets ANY of the following criteria:points = 2 It has 3 or more priority habitats within 100 m (see next page) It is mapped as a location for an individual WDFW priority species Site has 1 or 2 priority habitats (listed on next page) with in 100m points = 1 Site does not meet any of the criteria above points = 0 Rating of Value If Score is: 2 = H 1 = M 0 = L Record the rating on the first page Check the habitat features that are present in the wetland. The number of checks is the number of points. It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet weathered where wood is exposed ) At least ¼ ac of thin-stemmed persistent plants or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by amphibians ) 2 It is a Wetland of High Conservation Value as determined by the Department of Natural Resources 1 Invasive plants cover less than 25% of the wetland area in every stratum of plants (see H 1.1 for list of strata ) 1 2 -2 H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score that applies to the wetland being rated . It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 8 WSDOT Adapted Form - March 2, 2015 Wetland name or number D Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha). Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. Cliffs: Greater than 25 ft (7.6 m) high and occurring below 5000 ft elevation. Priority habitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympia, Washington. 177 pp. Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 – see web link above ). Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. Westside Prairies: Herbaceous, non-forested plant communities that can either take the form of a dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161 – see web link above ). Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. (full descriptions of habitats and the definition of relatively undisturbed are in WDFW report – see web link on previous page ). Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast height of > 20 in (51 cm) in western Washington and are > 6.5 ft (2 m) in height. Priority logs are > 12 in (30 cm) in diameter at the largest end, and > 20 ft (6 m) long. Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0.15 - 2.0 m), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth in soils, rock, ice, or other geological formations and is large enough to contain a human. Note: All vegetated wetlands are by definition a priority habitat but are not included in this list because they are addressed elsewhere. WDFW Priority Habitats Count how many of the following priority habitats are within 330 ft (100 m) of the wetland unit: NOTE : This question is independent of the land use between the wetland unit and the priority habitat. Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (full descriptions in WDFW PHS report ). Old-growth/Mature forests: Old-growth west of Cascade crest – Stands of at least 2 tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) > 32 in (81 cm) dbh or > 200 years of age. Mature forests – Stands with average diameters exceeding 21 in (53 cm) dbh; crown cover may be less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth; 80-200 years old west of the Cascade crest. http://wdfw.wa.gov/publications/00165/wdfw00165.pdf or access the list from here: http://wdfw.wa.gov/conservation/phs/list/ Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 9 WSDOT Adapted Form - March 2, 2015 Wetland name or number D Wetland Type Category Check off any criteria that apply to the wetland. List the category when the appropriate criteria are met. SC 1.0. Estuarine Wetlands Does the wetland meet the following criteria for Estuarine wetlands? The dominant water regime is tidal, Vegetated, and With a salinity greater than 0.5 ppt Yes - Go to SC 1.1 No = Not an estuarine wetland SC 1.1. Yes = Category I No - Go to SC 1.2 SC 1.2.Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions? Yes = Category I No = Category II SC 2.0. Wetlands of High Conservation Value (WHCV) SC 2.1. Yes - Go to SC 2.2 No - Go to SC 2.3 SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? Yes = Category I No = Not WHCV SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://www1.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.pdf Yes - Contact WNHP/WDNR and to SC 2.4 No = Not WHCV SC 2.4. Yes = Category I No = Not WHCV SC 3.0. Bogs SC 3.1. Yes - Go to SC 3.3 No - Go to SC 3.2 SC 3.2. Yes - Go to SC 3.3 No = Is not a bog SC 3.3. Yes = Is a Category I bog No - Go to SC 3.4 SC 3.4. Yes = Is a Category I bog No = Is not a bog NOTE: If you are uncertain about the extent of mosses in the understory, you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present, the wetland is a bog. Is an area with peats or mucks forested (> 30% cover) with Sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Engelmann spruce, or western white pine, AND any of the species (or combination of species) listed in Table 4 provide more than 30% of the cover under the canopy? CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Is the wetland within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park or Educational, Environmental, or Scientific Reserve designated under WAC 332-30-151? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. (If non-native species are Spartina , see page 25) At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un- grazed or un-mowed grassland. The wetland has at least two of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Value and listed it on their website? Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High Conservation Value? Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below. If you answer YES you will still need to rate the wetland based on its functions . Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or more of the first 32 in of the soil profile? Does an area within the wetland unit have organic soils, either peats or mucks, that are less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on top of a lake or pond? Does an area with peats or mucks have more than 70% cover of mosses at ground level, AND at least a 30% cover of plant species listed in Table 4? Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 10 WSDOT Adapted Form - March 2, 2015 Wetland name or number D SC 4.0. Forested Wetlands Yes = Category I No = Not a forested wetland for this section SC 5.0. Wetlands in Coastal Lagoons Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? Yes - Go to SC 5.1 No = Not a wetland in a coastal lagoon SC 5.1. Does the wetland meet all of the following three conditions? The wetland is larger than 1/10 ac (4350 ft2) Yes = Category I No = Category II SC 6.0. Interdunal Wetlands In practical terms that means the following geographic areas: Long Beach Peninsula: Lands west of SR 103 Grayland-Westport: Lands west of SR 105 Ocean Shores-Copalis: Lands west of SR 115 and SR 109 Yes - Go to SC 6.1 No = Not an interdunal wetland for rating SC 6.1. Yes = Category I No - Go to SC 6.2 SC 6.2. Is the wetland 1 ac or larger, or is it in a mosaic of wetlands that is 1 ac or larger? Yes = Category II No - Go to SC 6.3 SC 6.3. Yes = Category III No = Category IV Category of wetland based on Special Characteristics If you answered No for all types, enter “Not Applicable” on Summary Form The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less than 20% cover of aggressive, opportunistic plant species (see list of species on p. 100). At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un- grazed or un-mowed grassland. Is the wetland west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? If you answer yes you will still need to rate the wetland based on its habitat functions. Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form (rates H,H,H or H,H,M for the three aspects of function)? Is the unit between 0.1 and 1 ac, or is it in a mosaic of wetlands that is between 0.1 and 1 ac? The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks The lagoon in which the wetland is located contains ponded water that is saline or brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the bottom ) Does the wetland have at least 1 contiguous acre of forest that meets one of these criteria for the WA Department of Fish and Wildlife’s forests as priority habitats? If you answer YES you will still need to rate the wetland based on its functions. Old-growth forests (west of Cascade crest): Stands of at least two tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 in (81 cm) or more. Mature forests (west of the Cascade Crest): Stands where the largest trees are 80- 200 years old OR the species that make up the canopy have an average diameter (dbh) exceeding 21 in (53 cm). Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 11 WSDOT Adapted Form - March 2, 2015 Port Hadlock UGA Sewer System Project Figure 1 Wetland D Cowardin Classes, Hydroperiod, and Outlet for Wetland Rating Port Hadlock UGA Sewer System Project Figure 2 Wetland ABC Cowardin Classes, Hydroperiod, and Outlet for Wetland Rating Contributing basin © 2021 Microsoft Corporation Earthstar Geographics SIO © 2021 TomTom August 6, 2021 0 2 41 Miles K Subbasins (12 digit HUCs)HUC boundary Path: \\azr-file01\GIS_SHARE\GIS\GIS\Projects\208xxx\208327_PortHadlock_Sewer_System\MXDs\WetlandHabitatType_AB.mxd, mmccart 8/26/2021SOURCE: ESRI, 2020; ESA, 2021 Port Hadlock UGA Sewer System 2021 Figure 4 Wetlands A and B 1km Polygon and Accessible Habitats for Wetland Rating Form Wetland A Wetland B O a k B ayRd Flagler RdNess'Co rn e rRd WestV a lley Rd Cedar AveRhody Drive I ronda le RdAndersonLakeRdChimacum RdC hi m acu m Cre e k1 km Wetland Wetland Habitat Type High Intensity (41.7%) Moderate to Low Intensity (38.6%) Relatively Undisturbed (19.7%) N 0 1,000 Feet AndersonLake PugetSound Path: \\azr-file01\GIS_SHARE\GIS\GIS\Projects\208xxx\208327_PortHadlock_Sewer_System\MXDs\Figure5_WetlandHabitatType_C.mxd, mmccart 9/23/2021SOURCE: ESRI, 2020; ESA, 2021 Port Hadlock UGA Sewer System 2021 Figure 5 Wetland C 1km Polygon and Accessible Habitats for Wetland Rating Form Wetland C O a k B a y Rd FlaglerRdBeave r V a l l e y R dNess'Co rn e rRdCedar AveI ronda le RdWest Valley RdRhodyDriveChimacum RdA ndersonLakeRdC hi m a c u m C ree k Wetland Estimated Wetland Boundary 1 km Wetland Habitat Type High Intensity (38.6%) Moderate to Low Intensity (45.7%) Relatively Undisturbed (15.7%) N 0 1,000 Feet AndersonLake PugetSound Path: \\azr-file01\GIS_SHARE\GIS\GIS\Projects\208xxx\208327_PortHadlock_Sewer_System\MXDs\WetlandHabitatType_D.mxd, mmccart 9/23/2021SOURCE: ESRI, 2020; ESA, 2021 Port Hadlock UGA Sewer System 2021 Figure 6 Wetland D 1km Polygon and Accessible Habitats for Wetland Rating Form Wetland D O a k BayRd Flagler RdNess'Co rn e rRdCedar AveAndersonLake R d Rhody Dr i v eChimacumRdIrondale Rd C him acu m C r e e k 1 km Wetland Wetland Type High Intensity (56.4%) Moderate to Low Intensity (26.1%) Relatively Undisturbed (17.5%) N 0 1,000 Feet AndersonLake PugetSound Path: \\azr-file01\GIS_SHARE\GIS\GIS\Projects\208xxx\208327_PortHadlock_Sewer_System\MXDs\Figure7.mxd, mmccart 8/26/2021SOURCE: ESRI, 2020; ESA, 2021 Port Hadlock UGA Sewer System 2021 Figure 7 Wetlands A, B and C 150 foot Boundary for Wetland Rating Form Wetland A Chimacum RdChimacum Cre e k 150 ft. Wetland Parcel Boundary N 0 500 Feet Wetland C Wetland B Wetland C ExtendsOff-Site Wetland C ExtendsOff-Site Path: \\azr-file01\GIS_SHARE\GIS\GIS\Projects\208xxx\208327_PortHadlock_Sewer_System\MXDs\Figure8.mxd, mmccart 8/26/2021SOURCE: ESRI, 2020; ESA, 2021 Port Hadlock UGA Sewer System 2021 Figure 8 Wetland D 150 foot Boundary for Wetland Rating Form Wetland D Rhody Drive Oak Ba y R dCedar AveNess' Corner Rd I ronda le RdChimacum RdChimacum Creek 150 ft. Wetland N 0 500 Feet Port Hadlock UGA Sewer Critical Areas Report and HMP ESA Appendix D April 2022 APPENDIX D: WETLAND DETERMINATION DATA SHEETS