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HomeMy WebLinkAboutWetland Delineation 902233004WESTECH COMPANY Environmental Consulting ^- Site Permitting WETLAND DELINEATION 345 CASSELARY ROAD, DISCOVERY BAY, WASHINGTON ASSESSOR'S PARCEL ## 902-233-004 JEFFERSON COUNTY, WASHINGTON September 2017 G. Bradford Shea, Ph.D., Trevor J. Shea and Paul J. Ruben Submitted to: JEFFERSON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT 621 Sheridan Street Port Townsend, Washington 98368 Submitted by: WESTECH COMPANY P.O. Box 2876 Port Angeles, Washington 98362 P.O. Box 2876 - Port Angeles, Washington 98362 - Telephone: (360) 5651333 email: brad@westechcompany.com WETLAND DELINEATION 345 CASSELARY ROAD, DISCOVERY BAY, WASHINGTON ASSESSOR'S PARCEL # 902-233-004 JEFFERSON COUNTY, WASHINGTON September 2017 G. Bradford Shea, Ph.D., Trevor J. Shea and Paul J. Ruben Copyright 2017 by G. Bradford Shea, Westech Company — All Rights Reserved Submitted to: JEFFERSON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT 621 Sheridan Street Port Townsend, Washington 98368 Submitted by: WESTECH COMPANY P.O. Box 2876 Port Angeles, Washington 98362 TABLE OF CONTENTS CHAPTER/SECTION PAGE NO. 1.0 INTRODUCTION 1 2.0 METHODS 2 3.0 WETLAND DELINEATION RESULTS 9 3.1 Existing Conditions 9 3.2 Land Uses and Habitat Values 16 3.3 Wetland Types and Buffers 16 3.4 Jefferson County Wetland Map 17 4.0 CONCLUSIONS AND RECOMMENDATIONS 18 4.1 Conclusions 18 4.2 Recommendations 18 5.0 REFERENCES 20 TABLES Table 1. List of Plant Species: On -Site Wetlands A and B 13 Table 2. Site Soils 15 FIGURES Figure 1. Location Map 2 Figure 2. Casselary Road Vicinity Map 3 Figure 3. Parcel Map 4 Figure 4. Soils Map 10 Figure 5. Wetland Map Showing 40' Buffer 11 APPENDICES Appendix A — Site Photographs A-1 Appendix B — Data Forms B-1 Appendix C — Rating Sheets & Maps C-1 W W 1522-CasselaryW D.TOC/090617/mas 1.0 INTRODUCTION The Property (Site) is a 54.61 acre parcel located at 345 Casselary Rd in Discovery Bay, Washington. The Property is listed as Assessor's Parcel # 902-233-004 and is located in the Southwest Quarter of Section 23, Township 29 North, Range 2 West (Figures 1, 2, and 3). The property owner is listed as Thomas & Naomi Horner. The property is located in northeastern Jefferson County just south of Highway 101 and Discovery Bay. The Site covered in this Wetland Delineation includes a mostly cleared area on the property presently containing a trailer, some storage sheds and an access d riveway. The property owner intends to build a large complex called Misty Clover Farm, The Project will be built in multiple stages, starting with an ADU (Associated Dwelling Unit) and a combined house/barn building. The ADU is planned to be built in the fall of 2017, with the house/barn structure being constructed in early 2018. Mr. and Mrs. Horner contracted with Westech Company (Westech) to delineate and rate wetlands on the Site and determine the buffers required under Jefferson County Codes (Jefferson County 2014b). Chapter 2.0 describes the Methodology used to conduct this Wetland Delineation. Chapter 3.0 contains results of the Wetland Delineation, Chapter 4 contains Conclusions and Recommendations. Preliminary field investigations of the on-site wetlands were conducted by Dr. G. Bradford Shea and Mr. Paul Ruben during July 2017, with wetland boundary staking carried out by Mr. Ruben during August 2017. Dr. Shea and Mr. Trevor Shea reviewed site conditions and wetland staking, as well as photographic and other site documentation. Two wetlands were identified on the Site, which were within 225 feet of the two planned residences. Both were classified as Category IV Slope Wetlands with habitat ratings of 5, requiring a 40 foot buffer for projects of this size. The Wetland boundaries for these two wetlands (Wetland A and Wetland B) have been marked in the field. Wetland buffer zones were also mapped. Site photographs are shown in Appendix A. Other wetlands were found to exist on the large property, but are not part of this Wetland Delineation, which is focused on permitting of the two residential structures. WW1 522-CassaleryWD. RPT/090617/mas 1 3 � 'la ♦ � 1 X ,n�r. r Ike ot AL cu �to ��' - til •..�. ., 7 .}-,•� v�Syam`}�. I rP' � � P t � 7 I '►'.` , �4'` it + 3AB" nom 9 lJ -j �/ rf • L .�. i+-- C o Y ,Wo to . +lvppiwy "i• t]I .Ja Oil '�••. �`�` fr;(� > aC F ,�: o �w Cal . fir, F r C- LU Mill C� 2.0 METHODS The Wetland was delineated and rated according to procedures required by the Jefferson County Code (JCC). The JCC requires that wetlands be identified and delineated according to procedures in the 1997 Washington State Department of Ecology's (WDOE) Washington State Wetlands Identification and Delineation Manual (Ecology Publication No. 96-94 or as amended) (JCC 18.22.300). Because the State of Washington now defers to the U.S. Army Corps of Engineers' (US ACE) wetland delineation methods, this wetland was delineated according to the US ACE's Regional Supplement for the Western Mountains, Valleys and Coast Region (US ACE 2010). The Wetland was rated by the methods outlined in the Washington State Department of Ecology's Wetland Rating System for Western Washington (WDOE 2014). The following methods are drawn from the US ACE' Supplement for the Western Mountains, Valleys and Coast Region (US ACE 2010). The US ACE' manual defines wetlands as those "areas that are inundated or saturated by surface or ground water 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 are defined by the following three criteria: 1. Vegetation: Prevalent vegetation consisting of macrophytes adapted to areas with wetland hydrologic and soil conditions. 2. Hydric soils: Soils that are histosols, in aquic suborders or that show certain characteristics associated with poor draining, very poor draining or ponding for a long duration during the growing season. 3. Hydrology: Evidence that the area is inundated or saturated to the surface between 5 and 12.5 percent of the growing season in most years. Evidence of at least one wetland indicator from each of these three categories is generally required to identify an area as a wetland. Preliminary data gathering consisted of the examining U.S. Geological Survey (USGS) maps, county parcel, wetlands, and topographic maps, aerial photographs and Natural Resources Conservation Service (MRCS) soil surveys. Because these sources were insufficient to make a determination, additional information on site vegetation, soils and hydrology was unavailable, and the Site did not appear to have the complexity to require a comprehensive determination, a Routine Determination with Onsite Inspection was used. WWI 522-CassaleryWD. R PT/090617/mas Because each wetland on -Site was less than five acres, the procedure for "Areas Equal to or Less Than 5 Acres in Size" was used. The wetlands and their boundaries were initially estimated by noting likely areas of topographic and vegetative distinction between wetlands and uplands. The routine method for delineating wetlands begins with the identification of plant communities, as uplands and wetlands are often occupied by different assemblages of species determined by combinations of environmental influences. These plant communities were identified and evaluated for the presence or absence of hydrophytic vegetation. The wetland indicator status of the dominant species is used to determine the presence of hydrophytic vegetation. Each species has an indicator status defined according to the U.S. Department of Agriculture (USDA) (USDA 2012). A species indicator status refers to the relative frequency at which the species occurs in jurisdictional wetlands. Wetland plant species (OBL, FACW and/or FAC) must constitute greater than 50 percent of the dominant vegetation to meet Department of Ecology (DOE) criterion for hydrophytic vegetation (US ACE 2010). Because non-dominant plants in the wetland were scattered irregularly throughout, small transects could not be utilized to estimate percent coverage. Accordingly, a combination of on -Site visual inspection and aerial maps were used to estimate percent coverage. These estimates were used to conduct a dominance test with 50/20 selection as described in the US ACE manual (US ACE 2010). Wetland plants were primarily identified in the field, with subsequent collection and keying when necessary. Plants were identified using the following sources: Hansen's Northwest Plants 2017 NRCS Plants Database 2017 Pojar and MacKinnon 1994 (Updated 2004) Cooke 1997 Lyons 1997 Guard 1995 Taylor 1995 Hitchcock and Cronquist 1973 Keying of plants using magnifying lenses and dissecting microscope was used as necessary. Determination of wetland indicator status utilized regional keys published by USDA. This indicator replaced the previous U.S. Fish and Wildlife key in June 2012 (USDA 2012). Areas with plant communities dominated by hydrophytic vegetation were then evaluated for wetland hydrology and hydric soils. Wetland hydrology refers to "all hydrological characteristics of areas that are periodically inundated or have soils saturated to the surface at some time during the growing season." These are areas with evidence that the presence of water has an overriding influence on the characteristics of vegetation and soils due to anaerobic and reducing conditions (US ACE 2010). An area has wetland hydrology if it is inundated or saturated to the surface continuously for at least five percent W W 1522-CassaleryW D. RPT/090617/mas 6 (5%) of the growing season in most years. The level of inundation can range from permanently inundated to irregularly inundated/saturated. The level of inundation/saturation can be impacted by precipitation, topography and soil characteristics. Hydrology is often the least exact of the parameters used to delineate wetland edges because it is the most ephemeral and leaves the least reliable traces in the landscape after water tables or floods have receded. Therefore, indicators of wetland hydrology are sometimes difficult to find in the field. However, it is essential that a wetland area is periodically inundated or has saturated soils for a sufficient duration during the growing season. Based on US ACE recommendations, Westech staff noted areas with evident characteristics of wetland hydrology. In general, places with wetland hydrology show evidence that the presence of water has had an overriding influence on characteristics of vegetation and soils due to anaerobic and chemically -reducing conditions. Hydrologic conditions were determined through examination of topographic relief and drainage patterns. Soil moistness was determined by hand and, in the event of standing water, depth to standing water was noted. Field indicators of wetland hydrology include such features as watermarks, historic records, and visual observation of saturated soils or inundation. Evidence of hydric soils was checked along the apparent wetland boundary. These are soils that formed under conditions of saturation, flooding or ponding long enough during the growing season to develop anaerobic conditions in the upper layers. These soils are identified in the field mainly by morphological features such as color patterns, organic matter accumulation, and observation of inundation. Soils were sampled to depths of up to 18-24 inches using a wetland shovel. Soil consistency was determined by feeling for grain size and texture. Soil moisture was determined at that time. In the event of saturated conditions in the hole, depth to standing water was noted. Soil color was determined through comparison of field samples with standard Munsell Color Charts (Munsell 2004). Soil was also examined for presence of redox features, gley or other indicators of anaerobic soil oxidation. If one or more of these indicators was present in the wetlands, the soil was considered hydric. The wetland was determined based on the Routine On -Site Field Method used by the US ACE using a combination of vegetation, soil and hydrology indicators. The boundaries of the wetland were determined by first mapping each plant community area as wetland or non - wetland. The general wetland boundary was determined by the interface of these two mapping units. These boundaries were confirmed and the boundary locations narrowed down by sampling specific transects along wetland boundaries. Various points were sampled for vegetation, soil and hydrology in order to pinpoint the location of wetland boundaries. Appendix B contains data forms for two sample points (one wetland and one upland) from a typical area in each of the delineated wetlands. WW1 522-CassaleryWD. RPT/090617/mas 7 Wetland boundaries were indicated in the field by the use of pink "Wetland Delineation Boundary" flagging tape tied to the wooden stakes (24" or 48") or to trees as appropriate. All boundaries were staked and/or flagged every 25-30 feet. Buffer widths were determined based the Jefferson County Critical Areas Code. Soil test pits were indicated by blue/white diagonal flagging and stakes containing the test pit number. Site visits were carried out during July and August 2017 by Dr. Bradford Shea. Fieldwork to delineate the wetland boundaries was conducted during August 2017 by Mr. Paul Ruben. This report was prepared by Dr. G. Bradford Shea, Paul Ruben and Trevor Shea, with editing and proofing by Mary Ann Shea. Exploration of the Property involved noting Site characteristics such as hydrology and soil conditions. A botanical study involving identification of the plant species found growing on the Site was also conducted. The wetland edge was delineated and photographic documentation was acquired (Appendix A). Measurements for mapping purposes were made using a fiberglass tape measure and a Garmin WAAS enabled GPS unit. WW1 522-CassaleryWD. RPT/090617/mas 3.0 WETLAND DELINEATION RESULTS 3.1 EXISTING CONDITIONS The property is located in northeastern Jefferson County approximately 0.70 miles southwest of Highway 101 and 1.0 miles southwest of the southern edge of Discovery Bay. The parcel slopes from north to south, with the northwest corner lying at approximately 320 feet above mean sea level (msl) and the southeast corner at approximately 240 feet above msl. The Site currently includes a trailer, several outbuildings, horse pens with fencing and an access driveway. Forested areas cover a large portion of the Site, with 2 Category IV slope wetlands (Wetlands A and B) located within the cleared area in the center of the parcel. While there are other wetlands on the 54 acre property (Site), Wetlands A and B are the only wetlands found within 225 feet of the two proposed residences. On-site soils are mapped by NRCS as shown in Figure 4. Wetland boundaries are shown in Figure 5. The surrounding area consists of a mix of residential and forested land. A stream running as a drainage to Salmon Creek and Discovery Bay is mapped on Jefferson County's Mapping Database. Field investigations found a culvert crossing under the access driveway between the two delineated wetlands, however, no evidence of above ground water was found during those investigations. This is likely due to the time of year that the field investigations were carried out (August 2017). The Property is zoned as Rural Forest (RF -40). The purpose of the rural forest district is to ensure forest lands of long-term significance are protected from incompatible uses thereby sustaining the ability of forest resource extraction activities to be maintained as a viable commercial activity, while allowing for diversity in the size of forest tracts (Jefferson County Code 18.15.020). Parcels in the surrounding area have residential and forest zoning designations Wetlands Westech's field investigation determined that two wetlands are located on the property near the proposed residence and ADU. Both were rated as Category IV slope wetlands. Wetland boundaries were determined by first noting likely areas of topographic and vegetative distinction between wetland and uplands. The Site vegetation was found to transition from upland to wetland in a relatively abrupt fashion in Wetland A, but was varied and sporadic with many upland hillocks in Wetland B. Evidence of hydric soils was checked along the apparent wetland boundary. Westech staff noted the presence of soils marked by redox features in the boundary areas of each wetland. WW1 522-CassateryWD. RPT/091817/mas 9 Milt% OQYd4S moms ooFim ra:• Q7blfS rte. ti 0 0 N N CO U CL C Z O U U 0 U) N4k F t.4 ilk.. Milt% OQYd4S moms ooFim ra:• Q7blfS rte. ti 0 0 N N CO U CL C Z O U U 0 U) r t I Westech staff also noted the presence of hydrological indicators. While difficult to find, and often the least exact of the three indicators, Westech staff noted areas with evident characteristics of wetland hydrology, places where the presence of water has an overriding influence on characteristics of vegetation and soils due to anaerobic and chemically - reducing conditions. Due to the dry time of year that field investigations were carried out, there was no standing water or evidence of a water table, so hydrology was determined by soil color and vegetation (See and Appendix B). The vegetation, soils, and hydrology of the Site are described in more detail in the following subsections. Results of these three factors at four test pits (one in each of the two wetlands, and two in the upland areas) are contained in Appendix B. Site photographs are shown in Appendix A. Vegetation Table 1 lists on -Site wetland vegetation and the upland vegetation adjacent to the wetland boundaries. Both wetlands had only herbaceous layers, with no tree or shrub layers present. Wetland vegetation was that of typical lowland forested wetland. Wetland A was dominated by Soft rush (Juncus effusus, FACW) and Slough sedge (Carex obnupta, OBL) in the herb layer. Prevalence Index was used to determine hydrophytic vegetation because only one plant (Soft rush) met the dominance threshold (20%). Appendix B shows the results of the Prevalence Index conducted following the guidelines of the US ACE (US ACE 2010). This area met US ACE criterion for wetland vegetation. The adjacent upland area was dominated by White clover (Trifolium repens, FAC) and Common plantain (Plantago major, FAC). Wetland B was dominated by Timothy grass (Phleum pretense, FAC) and Soft rush (Juncus effuses, FACW). A dominance test was conducted following the guidelines of the US ACE (US ACE 2010). This area met US ACE criterion for wetland vegetation. The adjacent upland area is dominated almost completely by mixed grasses and clover (85%). Soils "Hydric soils" is a name for soils commonly found in wetlands. These soils are identified mainly by morphological features such as color patterns, organic matter accumulation, or observation of inundation. A soil may be considered hydric if it is inundated (flooded or ponded) for at least one continuous week during the growing season in most years (US ACE 2010). Westech staff looked for field indicators of hydric soil conditions as recommended by the US ACE. If one or more of these indicators was present in the wetlands, the soil was considered hydric (US ACE 2010). WW1 522-CassaleryWD. RPT/090617/mas 12 TABLE 1. LIST OF PLANT SPECIES: ON-SITE WETLANDS A & B Common Name Scientific Name Indicator * % Cover Wetland Soft rush Timothy grass Juncus effusus Phleum pratense FACW FAC 60 45 Himalayan black ber Rubus armeniacus FAC 15 Western buttercup - Ranunculus occidentalis FACW 10 Common horsetail Eguisitum arvense FAC 10 Slough sedge _ Carex obnupta _ OBL 15 Curly dock — Rumex on s�us FAC 15 White clover Trifolium repens FAC 15 Common s ikerush --- — ocharis Elealustris -- —- OBL ---._...-- 5 Cleavers Galium a anne FACU 5 Upland Timoth morass Phleum ratense FAC 85 White clover Trifolium repens FAC55 ommon Clantain Planta o ma or FAC 25 Hairy cat's -ear Hypochaeris radicata FACU 15 Cutleaf blackberry Rubus laciniatus FACU 15 *Indicators: UPL = Upland plant, FACU= Facultative Upland Plant (more upland than wetland), FAC = Facultative (borderline wetland plant), FACW = Facultative Wetland Plant (prefers wetland conditions), OBL = Obligate (only found in wetlands). W W 1522-CasselaryW D.Tab 1 /090617/mas 13 Westech staff examined existing NRCS soil surveys of the Site. The NRCS maps one dominant soil on the Site (NRCS 2017). The characteristics of the soil type mapped by the NRCS on the Site are as follows (see Figure 4): Alderwood gravelly sandy loam, 0 to 15 percent slope (AIC) is a moderately well - drained soil associated with ridges and hills, and is derived from glacial drift and/or glacial outwash over glaciomarine deposits. It has a depth of 18 to 37 inches to the water table and a very low capacity to transmit water (0.00 to 0.06 in/hr). This soil has a very low water storage capacity in its profile (about 2.7 inches) and no frequency of ponding or flooding. Because NRCS soil surveys do not necessarily capture small scale variation, Westech staff conducted additional field studies of the soils. To examine soils in the wetland boundaries, Westech staff dug soil pits and observed soil characteristics. The location of two soil pits examined by Westech is shown in Figure 5. These VSH plots are located within representative upland and wetland areas. The location of these plots has been marked in the field using wooden stakes tied with blue and white striped flagging. The soil information taken at these sample points is highlighted in Table 2 (see also Appendix B). Westech staff observed both silty clay and silty and sandy gravelly loam soils similar to those mapped by the NRCS. A soil pit in Wetland A consisted of silty clay that exhibited a value/chroma of 2/2 (10YR) to a depth of 5 inches (hardpan layer) and a value/chroma of 3/6 (7.5YR) with 5 percent redox features. The soils were very dry and hard due to the time of year, but the dark color and redox features indicate that they are wet at other times of year. The soil pit in an upland area exhibited soils with a value/chroma of 5/3 (10YR) to a depth of about 3 inches (hardpan) (see Table 2). The dryness of wetland soils made vegetation identification important in delineating wetland boundaries in this area. A soil pit in Wetland B consisted of silty clay that exhibited a value/chroma of 2/2 (10YR) with 3 percent redox features 4/6 (7.5YR) from 0 to 18 inches. A soil pit in an upland area exhibited soils with a value/chroma of 4/3 (10YR) with about 1 percent redox features. These soils did not meet US ACE criterion for hydric soils and did not indicate evidence of frequent saturation in the root zone. Hydrology Numerous factors (e.g., precipitation, topography, soil permeability, and plant cover) influence the wetness of an area. The water source for both wetlands come from a direct precipitation, runoff from uphill areas surrounding the wetland and groundwater sources. None of the soil pits dug in either wetland or upland areas had standing water or saturation to 20 inches at the time of measurement (August) (US ACE 2010). Adjacent upland soils showed no saturation in the root zone. WW1 522-CassaleryWD. RPT/091817/mas 14 TABLE 2. SITE SOILS Location/Depth Type Value/Chroma Redox (Color)%) -- — Plot #VHS -1 Wetland)_____—_ ..._.... --- _.._......-...- — -----._._..-...._...------ 0-5" Silt clay YN_ 3/6 7.5YR /5% Plot # VHS -2 U landj__ 0-3" Silty gravel 5/3 �10YR� none _ 0-18" Silty clay__2/2 10YR 4/6 7.5YR /3% Plot # VHS -4_ (Upland 0 6" Silt loam 4/3 10YR 4/6 7.5YR /1 % 6-12" _§loam 4/3 (10YR% 4/6 % T WW1 522-CasselaryWD.Tab2/091817/mas 15 3.2 LAND USES AND HABITAT VALUES Wetlands are transitional areas between upland and aquatic environments where water is present long enough to form distinct soils, and where specialized, water -tolerant plants grow. Wetlands serve a variety of functions such as transferring surface water into the ground, thereby recharging groundwater supplies. Wetlands trap water along with sediments and pollutants providing storm -water detention and filtration; mitigate flood impacts; and provide wildlife habitat. Wetland buffers are important because they reduce the adverse impacts of adjacent land uses on wetlands. The buffers serve to stabilize soil and prevent erosion, filter suspended solids, nutrients and toxic substances and moderate impacts of storm -water runoff. As such, buffers serve to preserve wetland functions. They also provide important habitat for wildlife living in and around the wetland. The proximity of the wetlands on the Site to a fish -bearing stream mapped to the south indicates that the wetlands can play a role in protecting instream water quality. Both wetlands provide habitat for bird and mammal species. Each of these wetlands provide minimal flood protection capacity due to their slope and distance to adjacent properties. 3.3 WETLAND TYPES AND BUFFERS The buffer sizes to be applied at this Site are governed by the Jefferson County Critical Areas Code. In order to establish buffer sizes, Jefferson County requires that wetlands be rated using the Washington State Department of Ecology's Wetland Rating System for Western Washington (WDOE 2006) (see Appendix C). In this system, wetland ratings are based on: 1) Water Quality Function (i.e., Does the wetland have the ability to improve water quality?) 2) Hydrologic Function (i.e., Does the wetland decrease flooding and/or erosion?) 3) Habitat Function (i.e., Does the wetland provide habitat for many species?) In Washington, wetland rating categories are based on the rarity of the type of wetland, the ability to replace it, its sensitivity to adjacent human disturbances, and the functions it performs. The objective of the rating system is to divide wetlands into groups that have similar needs for protection. W W 1522-CassaleryW D. RPT/090617/mas 16 Both on -Site wetlands were classified as Category IV wetlands. Wetland A had an overall score of 15 with a water quality score of 6, hydrologic score of 4 and habitat score of 5. Wetland B was rated as having a water quality of 5, a hydrologic scores of 3 and a habitat score of 5, with an overall score of 13. (See Wetland Rating Forms in Appendix B). The Jefferson County Codes require 40 foot buffers to protect these functions in areas of moderate use projects (such as single family residences). Wetland buffers are mapped in Figure 5. The proposed structures will be built outside of the buffer zones. 3.4 JEFFERSON COUNTY WETLAND MAP Jefferson County has not mapped any wetlands on the parcel, however they have mapped a small stream (Jefferson County 2017). That stream channel lies approximately 300 feet south of Wetland B and more than 600 feet from Wetland A. Westech observations confirmed that a culvert crosses under the driveway and the vegetation confirms the presence of a small drainage which forms Wetland A. WWI 522-CassaleryWD. RPT/090617/mas 17 4.0 CONCLUSIONS AND RECOMMENDATIONS 4.1 CONCLUSIONS Two wetlands (Wetland A and Wetland B) were identified and flagged on the Site near the proposed residential structures (within 225 feet). Figure 5 shows the location and extent of the mapped wetlands. This included emergent wetlands in the center area along the access driveway and by the current trailer and outbuildings. Both wetlands were rated Category IV slope wetlands with habitat scores of 5. Jefferson County requires buffer widths of 40 feet for this type of wetland and the proposed intensity of land use for the Site. Wetland boundaries and buffers have been marked on the map. 4.2 RECOMMENDATIONS Westech recommends that all construction activity for the new construction take place outside the County approved buffer zones. The new home, barn structure and the ADU will be built outside of the buffer areas, as allowed by the Jefferson County Code. W W 1522-CassaleryW D. RPT/091817/mas 18 5.0 REFERENCES Cooke, S.S. 1997. A Field Guide to the Common Wetland Plants of Western Washington and Northwestern Oregon. Seattle Audubon Society. Seattle, Washington. Google Earth. 2017. Online mapping software. www.googleearth.com. Guard, J. 1995. Wetland Plants of Ore on and Washington. Lone Pine Publishing. Renton, Washington. Hansen's. 2017. Hansen's Northwest Native Plant Database. www.nwplants.com. Cottonwood, California. Hitchcock, C.L. and A. Cronquist. 1973. Flora of the Pacific Northwest. University of Washington Press. Seattle, Washington. Jefferson County. 2017a. Critical Areas Code website. hftp://www.co-jefferson.wa.us/ commdevelopment/Critical%20Areas%200rdinance%2OWeb%2OFiles/CAOrd03- 0317-08.pdf Jefferson County. 2017b. Online Interactive Mapping website. hftp-//www.co.jefferson.wa.us/idms/mapserver.shtml Lyons, C.P. 1997. Wildflowers of Washington. Lone Pine Publishing. Renton, Washington. Munsell. 1994 (Updated 2004). Munsell Soil Color Charts. Gretag-Macbeth. New Windsor, New York. Natural Resource Conservation Service (NRCS). 2017. Hydric Soils. http:/Isoils.usda.ggov/use/hydric/. Pojar, J. and A. MacKinnon. 1994 (Updated 2004). Plants of the Pacific Northwest Coast. Lone Pine Publishing Company. Redmond, Washington. Taylor, R. 1995. Northwest Weeds. Mountain Press Publishing Company. Missoula Montana. U.S. Army Corp of Engineers (US ACE). 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys and Coast Regions (Version 2.0). May 2010. Washington, D.C. U.S. Department of Agriculture (USDA). 2017. NRCS Plants Database. https://plants.usda.gov. Cottonwood, California. WW1522-CassaleryWD.RPT1090617/mas 19 U.S. Department of Agriculture (USDA). 2012. 2012 National Wetland Plant List. hftp://plants.usda.gov/core/wetlandSearch. Washington Department of Ecology (WDOE). 2014. Washington State Wetlands Rating System for Western Washington. Thomas Hruby. Publication #14-06-029. Olympia, Washington. Washington Department of Ecology (WDOE). 1997. Washington State Wetlands Identification and Delineation Manual. Publication #. 96-94. Olympia, Washington. WW1 522-CassaleryWD. RPT/090617/mas 20 APPENDICES W W 1522-CassaleryW D. RPT/090617/mas 21 APPENDIX A SITE PHOTOGRAPHS WW1 522-CasselaryWD.APPA/090617/mas A-1 1) Wetland A, a Category IV, emergent slope wetland near the proposed ADU Site. 2) Wetland A, which begins at a culvert under the upper driveway, flowing beneath the lower driveway and then toward the property boundary. WW1522-CasselaryWD.APPA10906171mas A-2 3) Wetland B, a Category IV emergent slope wetland near the proposed house/barn site. 4) An extension of Wetland B, which flows alongside the driveway in a roadside ditch. WW1522-CasselaryWD.APPA10906171mas A-3 APPENDIX B DATA FORMS WW1 522-CasselaryWD.APPB/090617/mas B-1 WETLAND DETERMINATION DATA FORM -Western Mountains, Valleys, and Coast Region Project/Site: 345 Casselary Road _ City/County: Jefferson County Sampling Date: 8/4/17 Applicant/Owner: Thomas Horner state: WA Sampling Point: VSH-1 (Wetland) Investigator(s): Dr. Brad Shea/Mr. Paul Ruben Section, Township, Range: Section 23/Township 29N/Range 2W _.. Landform (hiiislope, terrace, etc.): Hillslope Local relief (concave, convex, none): None Slope (%): 3% Subregion (LRR): Northwest Forest Let: 470 59' 10.00" N Long: 1226 54' 11.30" W Datum: NAD 83 Soil Map Unit Name: NWI classification: Emergent Wetland Are climatic I hydrologic conditions on the site typical for this time of year? Yes V No (If no, explain in Remarks.) Are Vegetation , Soil V, or Hydrology V significantly disturbed? Are "Normal Circumstances" present? Yes No Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS - Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes ___V*_ No 25% Hydric Soil Present? Yes No 11, the Sampled Area ___%* Wetland Hydrology Present? Yes No within a Wetland? Yes V No Remarks: Soil hydrology disturbed from past has artificial manipulation of water -flow. Hose running from house may also contribute to the wetlands extent. VEGETATION - Use scientific names of plants. Tree Stratum (Plot size: N/A 1. Sapling/Shrub Stratum (Plot size: N/A 1. % Cover Species? Status Number of Dominant Species That Are OBL, FACW, or FAC: (A) = Total Cover 2, 3. 4. _ 5. ter Herb Stratum (Plot size: 1 Me ) 1 Soft Rush (Juncus effusus) 25% = Total Cover FACW 2. Slough Sedge Xerox obnupta) 15% OBL 3. Curly Dock (Rumex crispus) 1 F% FAC _ 4. White Clover (TKolium repens) 1r% _ FAC 5. Western Buttercup (Ranunculus occidentalis) 10% FACW 6 Common Horsetail (Equisetum arvense) 10% FAC 7. Common Spikerush (Eleocharis palustris) 5% OBL Prevalence Index = B/A = 2.26 10. 11. 95% = Total Cover Woody Vine Stratum (Plot size: N/A__) 1. _ 2. = Total Cover % Bare Ground in Herb Stratum 5% Remarks: Total Number of Dominant Species Across All Strata: (B) Percent of Dominant Species That Are OBL, FACW, or FAC: (A/B) Total % Cover of: Multiply by: OBL species 5 x 1 = 5 FACW species 60 x2= 120 FAC species 30 x3= 90 FACU species x4= UPL species —x5= _ Column Totals: 95 (A) 215 (B) Prevalence Index = B/A = 2.26 _ 1 - Rapid Test for Hydrophytic Vegetation _ 2 - Dominance Test is >50% d 3 - Prevalence Index is 53.0' _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) _ 5 - Wetland Non -Vascular Plants' _ Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes. V No_ US Army Corps of Engineers Western Mountains, Valleys, and Coast —Version 2.0 SOIL 345 Cassalery Road Sampling Point:VSH-1(Wetland) — — _ ........_..-- ...._ Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) --- Depth Matrix Redox Features _ (inches) Color (moist) _ % _Color (moist) % Ty7� ee' Texture Remarks 0-5" 10YR 2/2 9595%_ 7.5YR 3/6 5% C PL Silty Clav No hydrology due to time of Yea check all that apply) Secondary Indicators (2 or more required) _ Surface Water (Al) _ Water -Stained Leaves (89) (except _ Water -Stained Leaves (89) (MLRA 1, 2, High Water Table (A2) MLRA 1, 2,4A, and 48) 4A, and 46) _ Saturation (A3) _ Salt Crust (B11) _ Drainage Patterns (1310) _ Water Marks (B1) _ Aquatic Invertebrates (B13) _ Dry -Season Water Table (C2) _ Sediment Deposits (132) _ Hydrogen Sulfide Odor (CH _ 'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) _ Histosol (A1) _ Sandy Redox (S5) _ Histic Epipedon (A2) _ Stripped Matrix (S6) _ Black Histic (A3) _ Loamy Mucky Mineral (F1) (except MLRA 1) _ Hydrogen Sulfide (A4) _ Loamy Gleyed Matrix (F2) _ Depleted Below Dark Surface (All) _ Depleted Matrix (F3) _ Thick Dark Surface (Al2) Redox Dark Surface (F6) _ Sandy Mucky Mineral (S1) _ Depleted Dark Surface (F7) _ Sandy Gleyed Matrix (S4) _ Redox Depressions (F8) Indicators for Problematic Hydric Soils': _ 2 cm Muck (A10) _ Red Parent Material (TF2) _ Very Shallow Dark Surface (TF12) _ Other (Explain in Remarks) 'Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Rock Depth (inches): 5" _ Hydric Soil Present? Yes V No Remarks: Surface has been stripped due to farming. Soil is very dark. _ Iron Deposits (135) HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) _ Surface Water (Al) _ Water -Stained Leaves (89) (except _ Water -Stained Leaves (89) (MLRA 1, 2, High Water Table (A2) MLRA 1, 2,4A, and 48) 4A, and 46) _ Saturation (A3) _ Salt Crust (B11) _ Drainage Patterns (1310) _ Water Marks (B1) _ Aquatic Invertebrates (B13) _ Dry -Season Water Table (C2) _ Sediment Deposits (132) _ Hydrogen Sulfide Odor (CH _ Saturation Visible on Aerial Imagery (C9) _ Drift Deposits (63) Oxidized Rhizospheres along Living Roots (C3) _ Geomorphic Position (D2) _ Algal Mat or Crust (B4) _ Presence of Reduced Iron (C4) _ Shallow Aquitard (D3) _ Iron Deposits (135) _ Recent Iron Reduction in Tilled Soils (C6) _ FAC -Neutral Test (135) _ Surface Soil Cracks (B6) _ Stunted or Stressed Plants (D1) (LRR A) _ Raised Ant Mounds (D6) (LRR A) _ Inundation Visible on Aerial Imagery (67) _ Other (Explain in Remarks) _ Frost -Heave Hummocks (D7) _ Sparsely Vegetated Concave Surface (68) Field Observations: Surface Water Present? Yes No Depth (inches): Water Table Present? Yes —No Depth (inches): Saturation Present? Yes _ No _A0 Depth (inches): Wetland Hydrology Present? Yes No V includes ca illary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: Hydrology wasn't present due to the dry summer months. US Army Corps of Engineers Western Mountains, Valleys, and Coast— Version 2.0 WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region Project/Site: 345 Casselary Road City/county: Jefferson County Sampling Date:8/4/17 Applicant/Owner: Thomas Horner State: WA __ Sampling Point:VSH-2Lpland) Investigator(s): Dr. Brad Shea/Mr. Paul Ruben Section, Township, Range: Section 23/Township 29N/Range 2W Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): None Slope (%): 33% _ Subregion (LRR): Northwest Forest Let: 470 59' 10.06" N Long: 1220 54' 11.12" W Datum: NAD 83 Soil Map Unit Name: Alderwood NWI classification: Emergent Wetland Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation- Soil j, or Hydrology V significantly disturbed? Are "Normal Circumstances" present? Yes No. V Are Vegetation _, Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No. V N/A 40% Hydric Soil Present? Yes No Is the Sampled Area _V Wetland Hydrology Present? Yes No __V within a Wetland? Yes No _ V Remarks: See VSH-1 Comments. VEGETATION –Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: N/A ) % Cover Species? Status 1. 2. 3. 4. N/A = Total Cover Sapling/Shrub Stratum (Plot size: N/A ) 1. 3. 4. _ — 5 Herb Stratum (Plot size: _1 Meter ) 1. White Clover Trifolium repens N/A 40% = Total Cover Yes FAC 2. Common Plantain (Plantago maior) 25% Yes FAC 3. Hairy Cat's -Ear (Hypochaeris radicata) 15 FACU 4. Cutleaf Blackberry (Rubus laciniatus)__,_,..-_ 1_5 FACU 5. 6. 7. 8. 9. 11. 95 —=Total Cover Woody Vine Stratum (Plot size: N/A ) 2. N/A = Total Cover % Bare Ground in Herb Stratum 5% Number of Dominant Species That Are OBL, FACW, or FAC: (A) Total Number of Dominant Species Across All Strata: (B) Percent of Dominant Species That Are OBL, FACW, or FAC: (AIB) Total % Cover of: Multiply bv: OBL species x 1 = FACW species x 2 = FAC species 65 x 3 = -195 FACU species 30 x4= 120 UPL species X5= Column Totals: 95 (A) 315 _ (B) Prevalence Index = B/A = 3.32 Hydrophytic Vegetation Indicators: _ 1 - Rapid Test for Hydrophytic Vegetation _ 2 - Dominance Test is >50% _ 3 - Prevalence Index is 53.0' _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) _ 5 - Welland Non -Vascular Plants' _ Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes No _V US Army Corps of Engineers Western Mountains, Valleys, and Coast - Version 2.0 SOIL 345 Cassalery Road Sampling Point: V 2 (Upland) Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix _ _ Redox Features (inches) Color (moist) % Color (moist) % Type,Loc Texture Remarks 0-3" 10YR 5/3 100% Silty Gravel 'Type: C=Concentration, D=De lotion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Linin M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: _ Histosol (Al) _ Sandy Redox (S5) _ 2 cm Muck (A10) _ Histic Epipedon (A2) _ Stripped Matrix (S6) _ Red Parent Material (TF2) _ Black Histic (A3) _ Loamy Mucky Mineral (F1) (except MLRA 1) _ Very Shallow Dark Surface (TF12) _ Hydrogen Sulfide (A4) _ Loamy Gleyed Matrix (F2) _ Other (Explain in Remarks) _ Depleted Below Dark Surface (Al 1) _ Depleted Matrix (F3) _ Thick Dark Surface (Al2) _ Redox Dark Surface (F6) 31ndicators of hydrophylic vegetation and _ Sandy Mucky Mineral (St) _ Depleted Dark Surface (F7) wetland hydrology must be present, Sandy Gleyed Matrix (S4) _ Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: Rock (gravel) Depth (inches): 3" Hydric Soil Present? Yes No Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required check all that apply) Secondary Indicators(2 or more required) _ Surface Water Al) _ Water -Stained Leaves (139) (except _ Water -Stained Leaves (139) (11 1, 2, High Water Table (A2) MLRA 1, 2,4A, and 4B) 4A, and 413) _ Saturation (A3) Salt Crust (B11) _ Drainage Patterns (810) _ Water Marks (61) _ Aquatic Invertebrates (1313) _ Dry -Season Water Table (C2) _ Sediment Deposits (82) _ Hydrogen Sulfide Odor (Cl) _ Saturation Visible on Aerial Imagery (C9) Drift Deposits (63) _ Oxidized Rhizospheres along Living Roots (C3) _ Geomorphic Position (D2) _ Algal Mat or Crust (84) _ Presence of Reduced Iron (C4) _. Shallow Aquitard (133) _ Iron Deposits (85) _ Recent Iron Reduction in Tilled Soils (C6) _ FAC -Neutral Test (D5) _ Surface Soil Cracks (86) _ Stunted or Stressed Plants (D1) (LRR A) _ Raised Ant Mounds (D6) (LRR A) Inundation Visible on Aerial Imagery (137) _ Other (Explain in Remarks) _ Frost -Heave Hummocks (D7) _ Sparsely Vegetated Concave Surface (138) Field Observations: Surface Water Present? Yes_ No Depth (inches): Water Table Present? Yes No %. Depth (inches): Saturation Present? Yes No %_ Depth (inches): _ Wetland Hydrology Present? Yes No V _includes capillary fringe) _ Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: — US Army Corps of Engineers Western Mountains, Valleys, and Coast –Version 2.0 WETLAND DETERMINATION DATA FORM —Western Mountains, Valleys, and Coast Region ProjecuSite: 345 Casselary Road City/County: Jefferson County Sampling Date: 8/4/17 Applicant/Owner: Thomas Horner State: WA Sampling Point: VSH-3 Wetland) Investigator(s): Dr. Brad Shea/Mr. Paul RubenSection, Township, Range: Section 23/Township 29N/Range 2W Landform (hillslope, terrace, etc.): Hilislope Local relief (concave, convex, none): None Slope (%): 2% Subregion (LRR): Northwest Forest Let: 410 59' 08.87"_N Long: 1220 54' 18.20" W Datum: NAD 83 Soil Map Unit Name: Alderwood NWI classification: Emergent Wetland Are climatic / hydrologic conditions on the site typical for this time of year? Yes �L_. No (If no, explain in Remarks.) Are Vegetation , Soil or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes � No Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes V No 15% Hydric Soil Present? Yes No Is the Sampled Area Wetland Hydrology Present? Yes No within a Wetland? Yes V No Remarks: Wetland Hydrology is not present due to the time of year (summer) and recent lack of rainfall. VEGETATION — Use scientific names of plants. Tree Stratum (Plot size: N/A 1. 2. 3.------ 4. % Cover Species? Status I Number of Dominant Species That Are OBL, FACW, or FAC: 2 (A) N/A = Total Cover Sapling/Shrub Stratum (Plot size: 10 Meters ) 1. Himalayan Blackberry(Rubus armeniacus) 15% FAC 2. 3. 4. 5. 1 Meter 15% = Total Cover Herb Stratum (Plot size: ) FACW species x2= 1. Timothy Grass (Phleum pratense) 45% Yes FAC 2. Soft Rush (Juncus effusus) 3555% Yes FACW 3. Himalayan Blackberry(Rubus armeniacus) 15% FAC 4. Cleavers (Galium aparine) 5"/°___ _ FAcij 100% = Total Cover Woody Vine Stratum (Plot size: N/A ) 1. 2. N/A = Total Cover % Bare Ground in Herb Stratum 0% Remarks: Total Number of Dominant Species Across All Strata: 2 (B) Percent of Dominant Species 100% That Are OBL, FACW, or FAC: (A/B) Total % Cover of: _ Multiply by: DEL species x 1 = FACW species x2= FAC species x3= FACU species x4= UPL species x5= Column Totals: (A) (B) Prevalence Index = B/A = _ 1 - Rapid Test for Hydrophytic Vegetation d 2 - Dominance Test is >50% _ 3 - Prevalence Index is 53.0' _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) _ 5 - Wetland Non -Vascular Plants' _ Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes V No US Army Corps of Engineers Western Mountains, Valleys, and Coast —Version 2.0 SOIL 345 Cassalery Road Sampling Point: VSH-3 Wetland Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Tvue Loc Texture Remarks 0-18" 1 OYR 2/2 97% 7.5YR 4/6 3% C PC silty clay _ Water -Stained Leaves (89) (MLRA 1, 2, _ High Water Table (A2) MLRA 1, 2,4A, and 413) 4A, and 413) _ Saturation (A3) _ Salt Crust (B11) ._ Drainage Patterns (B10) _ Water Marks (81) _ Aquatic Invertebrates (B13) _ Dry -Season Water Table (C2) Sediment Deposits (B2) _ Hydrogen Sulfide Odor (C1) _ Saturation Visible on Aerial Imagery (C9) _ Drift Deposits (B3) _ Oxidized Rhizospheres along Living Roots (C3) _ Geomorphic Position (D2) _ Algal Mat or Crust (B4) _ Presence of Reduced Iron (C4) _ Shallow Aquitard (D3) _ Iron Deposits (135) _ Recent Iron Reduction in Tilled Soils (C6) _C=Concentration, D=Depletion, RM=Reduced Matrix, CS_Covered or Coated Sand Grains, Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) _ Histosol (At) _ Sandy Redox (S5) _ Histic Epipedon (A2) _ Stripped Matrix (S6) _ Black Histic (A3) _ Loamy Mucky Mineral (F1) (except MLRA 1) _ Hydrogen Sulfide (A4) _ Loamy Gleyed Matrix (F2) _ Depleted Below Dark Surface (Al 1) _ Depleted Matrix (F3) _ Thick Dark Surface (Al2) Redox Dark Surface (F6) _ Sandy Mucky Mineral (St) _ Depleted Dark Surface (F7) _ Sandy Gleyed Matrix (S4) _ Redox Depressions (F8) Indicators for Problematic Hydric Soils': _ 2 cm Muck (A10) _ Red Parent Material (TF2) _ Very Shallow Dark Surface (TF12) _ Other (Explain in Remarks) "Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): _ Inundation Visible on Aerial Imagery (B7) Hydric Soil Present? Yes V No Remarks: Redox concentrations throughout test pit. _ Sparsely Vegetated Concave Surface (BB) HYDROLOGY Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) _ Surface Water (Al) _ Water -Stained Leaves (89) (except _ Water -Stained Leaves (89) (MLRA 1, 2, _ High Water Table (A2) MLRA 1, 2,4A, and 413) 4A, and 413) _ Saturation (A3) _ Salt Crust (B11) ._ Drainage Patterns (B10) _ Water Marks (81) _ Aquatic Invertebrates (B13) _ Dry -Season Water Table (C2) Sediment Deposits (B2) _ Hydrogen Sulfide Odor (C1) _ Saturation Visible on Aerial Imagery (C9) _ Drift Deposits (B3) _ Oxidized Rhizospheres along Living Roots (C3) _ Geomorphic Position (D2) _ Algal Mat or Crust (B4) _ Presence of Reduced Iron (C4) _ Shallow Aquitard (D3) _ Iron Deposits (135) _ Recent Iron Reduction in Tilled Soils (C6) _ FAC -Neutral Test (D5) _ Surface Soil Cracks (B6) _ Stunted or Stressed Plants (D1) (LRR A) _ Raised Ant Mounds (136) (LRR A) _ Inundation Visible on Aerial Imagery (B7) _ Other (Explain in Remarks) _ Frost -Heave Hummocks (137) _ Sparsely Vegetated Concave Surface (BB) Surface Water Present? Water Table Present? Saturation Present? Yes —No _ Depth (inches): Yes No Depth (inches): Yes No Depth (inches): gauge, Wetland Hydrology Present? Yes No V US Army Corps of Engineers Western Mountains, Valleys, and Coast --Version 2.0 WETLAND DETERMINATION DATA FORM — Western Mountains, Valleys, and Coast Region Project/Site: 345 Casselary Road City/County: Jefferson Sampling Date: 8/4/17 Applicant/Owner: Thomas Horner _._ state: WA Sampling Point: VSH-4 (Upland) Investigator(s): Dr. Brad Shea/Mr,Paul Ruben Section, Township, Range: _Section 23/Township 29N/Range 2W _ Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): None Slope (%): 2% Subregion (LRR): Northwest Forest Let: 47 0 59' 08.81" N Long: 122 o 54' 17.88" W Datum: NAD 83 Soil Map Unit Name: Alderwood _. NWI classification: _Emergent Wetland Are climatic / hydrologic conditions on the site typical for this time of year? Yes V No (If no, explain in Remarks.) Are Vegetation Soil , or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes �_ No Are Vegetation _, Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. r rophytic Vegetation Present? Yes No _�—ric Soil Present? Yes No_,LIs the Sampled Area and Hydrology Present? Yes No within a Wetland? Yes No VEGETATION — Use scientific names of plants. Tree Stratum (Plot size: N/A 1. 2. — 3. 4. Sapling/Shrub Stratum (Plot size: N/A 1. 2. _... 3. 4. % Cover Species?Status Number of Dominant Species That Are OBL, FACW, or FAC: 1 (A) _N/A = Total Cover Herb Stratum (Plot size: __IMeter ) 1. Timothy Grass (Phleum pratense) N/A 20% = Total Cover Yes FAC 2, 3. White Clover (Trifolium repens) _1010 Sweet vernal grass (Anthoxanthum odoratum 2) 5% FAC Yes FACU 4. Orchardgrass (Dactylis glomerata) _.— 30% _ Yes FACU 5. Red clover(Trifolium pratense) ._ 10% FACU s. Canadian thistle (Cirsium arvense) 5% FAC 7. x3= 90 -- 8. 280 — UPL species —x5= __ Column Totals: 100 (A) 370 (B) 100%= Total Cover Woody Vine Stratum (Plot size: N_/A) 1. – 2..____— N/A =Total Cover % Bare Ground in Herb Stratum Total Number of Dominant Species Across All Strata: 3 (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 33% _ (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species —x2= FAC species 30 x3= 90 FACU species 70 x4= 280 — UPL species —x5= __ Column Totals: 100 (A) 370 (B) Prevalence Index = B/A = _ 1 - Rapid Test for Hydrophytic Vegetation _ 2 - Dominance Test is >50% _ 3 - Prevalence Index is 53.0' _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) _ 5 - Wetland Non -Vascular Plants' _ Problematic Hydrophyfic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes _ No 11110" US Army Corps of Engineers Western Mountains, Valleys, and Coast–Version 2.0 SOIL 345 Cassalery Road Sampling Point: VSH-4 (Upland) Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features _ (inches) Color (moist) % Color (moist) % TypoT Lo Texture Remarks 0-6" _10YR 4/3 99% 7.5YR 4/6 1% C _ Silty loam Traces of redox 6-12" 10YR 4/3 99% 7.5 YR 4/6 1 % C Silty loam Traces of redox _ High Water Table (A2) MLRA 1, 2,4A, and 4B) 4A, and 48) _ Saturation (A3) _ Salt Crust (B11) _ Drainage Patterns (1310) _ Water Marks (B1) _ Aquatic Invertebrates (613) _ Dry -Season Water Table (C2) _ Sediment Deposits (B2) _ Hydrogen Sulfide Odor (Cl) _ Saturation Visible on Aerial Imagery (C9) _ Drift Deposits (83) _ Oxidized Rhizospheres along Living Roots (C3) _ Geomorphic Position (D2) _ Algal Mat or Crust (B4) _ Presence of Reduced Iron (C4) _ Shallow Aquitard (D3) 'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 'Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all _ Histosoi (Al) _ Histic Epipedon (A2) _ Black Histic (A3) _ Hydrogen Sulfide (A4) _ Depleted Below Dark Surface (A11) _ Thick Dark Surface (Al2) _ Sandy Mucky Mineral (S1) _ Sandy Gleyed Matrix (S4) LRRs, unless otherwise noted.) _ Sandy Redox (S5) _ Stripped Matrix (S6) _ Loamy Mucky Mineral (Ft) (except MLRA 1) _ Loamy Gleyed Matrix (F2) _ Depleted Matrix (F3) _ Redox Dark Surface (F6) _ Depleted Dark Surface (F7) _ Redox Depressions (F8) Indicators for Problematic Hydric Soils': _ 2 cm Muck (A10) _ Red Parent Material (TF2) _ Very Shallow Dark Surface (TF1 2) _ Other (Explain in Remarks) 'Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Rock Depth (inches): 12" Hydric Soil Present? Yes No Remarks: Sparsely Vegetated Concave Surface (B8) HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) _ Surface Water (Al) _ Water -Stained Leaves Ing) (except _ Water -Stained Leaves (69) (MLRA 1, 2, _ High Water Table (A2) MLRA 1, 2,4A, and 4B) 4A, and 48) _ Saturation (A3) _ Salt Crust (B11) _ Drainage Patterns (1310) _ Water Marks (B1) _ Aquatic Invertebrates (613) _ Dry -Season Water Table (C2) _ Sediment Deposits (B2) _ Hydrogen Sulfide Odor (Cl) _ Saturation Visible on Aerial Imagery (C9) _ Drift Deposits (83) _ Oxidized Rhizospheres along Living Roots (C3) _ Geomorphic Position (D2) _ Algal Mat or Crust (B4) _ Presence of Reduced Iron (C4) _ Shallow Aquitard (D3) _ Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC -Neutral Test (D5) _ Surface Soil Cracks (B6) _ Stunted or Stressed Plants (131) (LRR A) _ Raised Ant Mounds (D6) (LRR A) _ Inundation Visible on Aerial Imagery (67) _ Other (Explain in Remarks) _ Frost -Heave Hummocks (137) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): Water Table Present? Yes No Depth (inches): Saturation Present? Yes No Depth (inches): Wetland Hydrology Present? Yes No includes Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: US Army Corps of Engineers Western Mountains, Valleys, and Coast-- Version 2.0 APPENDIX C RATING FORMS AND ATTACHMENTS WW1 522-CasselaryWD.APPC/090617/mas C-1 Wetland name or number -A RATING SUMMARY — Western Washington Name of wetland (or ID #): 345 Casselary Road Date of site visit: 8/16/17 Rated byj)r G. Bradford Shea Trained by Ecology?_X Yes No Date of training 10/15 HGM Class used for rating Slone Wetland has multiple HGM classes?Y X_N NOTE: Form is not complete without the figures requested (figures can be combined). Source of base aerial photo/map OVERALL WETLAND CATEGORY (based on functionsor special characteristics_) 1. Category of wetland based on FUNCTIONS Category I — Total score = 23 - 27 Category II — Total score = 20 - 22 Category III — Total score = 16 - 19 _X_X_Category IV —Total score = 9 - 15 FUNCTION Improving Water Quality Hydrologic - Habitat Wetland of High Conservation Value Circle the appropriate ratings Bog Site Potential H M L H M"> L H M (L) 1 Landscape Potential H M(L.) H M LF1 (H, M L None of the above Value H Nl ? L H M (LT H M iL TOTAL Score Based on Ratings 2. Category based on SPECIAL CHARACTERISTICS of wetland CHARACTERISTIC CATEGORY Estuarine I II Wetland of High Conservation Value I Bog I Mature Forest 1 Old Growth Forest 1 Coastal Lagoon I II Interdunal 1 II III IV None of the above Wetland Rating System for Western WA: 2014 Update Rating Form - Rffective January 1, 2015 Score for each function based on three ratings (order of ratings is not important) 9 = H, H,H 8 = H, H,M 7 = H,H,L 7 = H,M,M 6 = H,M,L 6 = M,M,M 5 = H,L,L 5 = M,M,L 4 = M,L,L 3 = L,L,L Wetland name or number AF Maps and figures required to answer questions correctly for Western Washington Depressional Wetlands Map of: To answer questions: Figure # Cowardin plant classes D 1.3, H 1.1, H 1.4 Hydroperiods D 1.4, H 1.2 Location of outlet (can be added to map of hydroperiods) D 1.1, D 4.1 Boundary of area within 150 ft of the wetland (can be added to anotherfigure) D 2.2, D 5.2 Map of the contributing basin D 4.3, D 5.3 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2. 1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) D 3.1, D 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) D 3.3 Riverine Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 L 1.2 _ Hydroperiods H 1.2 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat Funded depressions R 1.1 L 3. 1, L 3.2 Boundary of area within 150 ft of the wetland (can be added to anotherfigure) R 2.4 _ Plant cover of trees, shrubs, and herbaceous plants R 1.2, R 4.2 _ Width of unit vs. width of stream (can be added to anotherfigure) R 4.1 Map of the contributing basin R 2.2, R 2.3, R 5.2 _ 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) R 3.1 Screen capture of list of TMDLs for WRIA in which unit is found (from web) R 3.2, R 3.3 Lake Fringe Wetlands Map of: - To answer questions: Figure # Cowardin plant classes L 1.1, L 4.1, H 1.1, H 1.4 Plant cover of trees, shrubs, and herbaceous plants L 1.2 Boundary of area within 150 ft of the wetland (can be added to anotherfigure) L 2.2 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2. 1, H 2.2, H 2.3 _ Screen capture of map of 303(d) listed waters in basin (from Ecology web_site) L 3. 1, L 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) L 3.3 Slope Wetlands Map of: To answer questions: Figure # Cowardin plant classes H 1.1, H 1.4 Hydroperiods_ H 1._2_____________ _ Plant cover of dense trees, shrubs, and herbaceous plants _ S 1.3 _ Plant cover of dense, rigid trees, shrubs, and herbaceous plants (can be added to figure above) S4.1 _ Boundary of 150 ft buffer (can be added to another figure) S 2.1, S 5.1 _ 1 km Polygon: Area that extends 1 km from entire wetland edge - including polygons for accessible habitat and undisturbed habitat H 2.1, H 2.2, H 2.3 Screen capture of map of 303(d) listed waters in basin (from Ecology website) S 3.1, S 3.2 _ Screen capture of list of TMDLs for WRIA in which unit is found (from web) S3.3 Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1, 2015 Wetland name or number -A..!--, HGM Classification of Wetlands in Western Washington For questions 1-7, the criteria described must apply to the entire unit being rated. If the hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8. 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 Ifyour wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. 2. The entire wetland unit is flat and precipitation is the only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. NO -go to 3 YES - The wetland class is Flats Ifyour wetland can be classified as a Flats wetland, use the form for Depressional wetlands. 3. Does the entire wetland unit meet all of the following criteria? _The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size; _At least 30% of the open water area is deeper than 6.6 it (2 m). 0- go to 4 YES - The wetland class is Lake Fringe (Lacustrine Fringe) 4. Does the entire wetland unit meet all of the following criteria? XThe wetland is on a slope (slope can be very gradual), XThe 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, XThe water leaves the wetland without being impounded. NO -go to 5 YES The wetland class is Slope NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3 It diameter and less than 1. ft deep). S. Does the entire wetland unit meet all of the following criteria? _The unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river, _The overbank flooding occurs at least once every 2 years. Wetland Rating System for Western WA: 2014 Update 3 Rating Form - Effective January 1, 2015 Wetland name or number _ NO - go to 6 YES - The wetland class is Riverine NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during the year? This means that any outlet if present, is higher than the interior of the wetland. NO-goto7 YES - The wetland class is Depressional Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding? The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched, but has no obvious natural outlet. NO-goto8 YES - The wetland class is Depressional 8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a Depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within the wetland unit being scored. NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the HGM class listed in column 2 is less than 10% of the unit; classify the wetland using the class that represents more than 90% of the total area. HGM classes within the wetland unit being rated HGM class to use in rating Slope + Riverine Riverine Slope + Depressional Depressional Slope + Lake Fringe Lake Fringe Depressional + Riverine along stream within boundary of depression Depressional Depressional + Lake Fringe Depressional Riverine + Lake Fringe Riverine Salt Water Tidal Fringe and any other class of freshwater wetland Treat as ESTUARINE Ifyou are still unable to determine which of the above criteria apply to your wetland, or ifyou have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Wetland Rating System for Western WA: 2014 Update Rating Form — E.ffective January 1, 2015 Wetland name or number A, g SLOPE WETLANDS Water Quality Functions - indicators that the site functions to improve water duality S 1.0. Does the site have the potential to improve water quality? S 2.2. Are there other sources of pollutants coming into the wetland that are not listed in question S 2.1? Other sources Yes = 1 No ]L0 S 1.1. Characteristics of the average slope of the wetland: (a 1% slope has a 1 ft vertical drop in elevation for every Total for S 2 Add the points in the boxes above 100 ft of horizontal distance) Total for S 3 Add the points in the boxes above Slope is 1% or less points = 3 Slope is > 1%-2% points = 2 Slope is > 2%-5% points 1 Slope is greater than 5% points os 1, 0 S 1.2. The soil 2 in below the surface (or duff laver) is true clay or true organic (use NRCS definitions): Yes = 3 No = 0 S 1.3. Characteristics of the plants in the wetland that trap sediments and pollutants: Choose the points appropriate for the description that best fits the plants in the wetland. Dense means you have trouble seeing the soil surface (>75% cover), and uncut means not grazed or mowed and plants are higher than 6 in. Dense, uncut, herbaceous plants > 50% of the wetland area points = 6 Dense, uncut, herbaceous plants > Y: of area points = 3 Dense, woody, plants > % of area points = 2 Dense, uncut, herbaceous plants > Y. of area points = 1 Does not meet any of the criteria above for plants points = 0 6 3 Total for S 1 Add the points in the boxes above Rating of Site Potential If score is:_12 = H _X_'6-11= M �0-5 = L Record the rating on the first page S 2.0. Does the landscape have the potential to support the water quality function of the site? S 2.1. Is > 10% of the area within 150 ft on the uphill side of the wetland in land uses that generate pollutants? Yes= 1 No S 2.2. Are there other sources of pollutants coming into the wetland that are not listed in question S 2.1? Other sources Yes = 1 No ]L0 Total for S 2 Add the points in the boxes above 10 Rating of Landscape Potential If score is: 1-2 = M _X_0 = L Record the rating on the first page S 3.0. Is the water quality improvement provided by the site valuable to society? S3.1. 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? SE 1 No = 0 S3.2. Is the wetland in a basin or sub -basin where water quality is an issue? At least one aquatic resource in the basin is on the 303(d) list. e - 1 No = 0 S3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality? An sw r YES if there is a TMDL for the basin in which unit is found. Yes = 2 = 0 Total for S 3 Add the points in the boxes above Rating of Value If score is:_X__2-4 = H ^i = M _0 = L Wetland Rating System for Western WA: 2014 update Rating Form - Effective January 1, 2015 Record the rating on the first page 11 Wetland name or number A�6 SLOPE WETLANDS Hydrologic Functions - Indicators that the site functions to reduce flooding and stream erosion S 4.0. Does the site have the potential to reduce flooding and stream erosion? S 4.1. Characteristics of plants that reduce the velocity of surface flows during storms: Choose the points appropriate The sub -basin immediately down -gradient of site has flooding problems that result in damage to human or for the description that best fits conditions in the wetland. Stems of plants should be thick enough (usually> 1A natural resources (e.g., houses or salmon redds) points = 2 in), or dense enough, to remain erect during surface flows. Surface flooding problems are in a sub -basin farther down -gradient points = 1 Dense, uncut, rigid plants cover > 90% of the area of the wetland points- 1 No flooding problems anywhere downstream points no All other conditions points 0 ' S 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Rating of Site Potential If score is:_2 1 = M _.�,_0 = L Record the rating on the first page S 5.0. Does the landscape have the potential to support the hydrologic functions of the site? S 5.1. Is more than 251 of the area within 150 ft upslope of wetland in land uses or cover that generate excess � surface runoff? Yes= 1 No 4 U1 0 Rating of Landscape Potential If score is: �1= M _X_0 = L Record the rating on the first page S 6.0. Are the hydrologic functions provided by the site valuable to society? S6.1. Distance to the nearest areas downstream that have flooding problems: The sub -basin immediately down -gradient of site has flooding problems that result in damage to human or natural resources (e.g., houses or salmon redds) points = 2 Surface flooding problems are in a sub -basin farther down -gradient points = 1 No flooding problems anywhere downstream points no S 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Yes = 2 F 0 Total for S 6 Add the points in the boxes above Rating of Value If score is: _2-4=H _i = M __X_0 = L Record the rating on the first page NOTES and FIELD OBSERVATIONS: Wetland Rating System for Western WA: 2014 Update 12 Rating Form - Effective January 1, 2015 Wetland. name or number. These questions apply to wetlands of all HGM classes. HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1..0, Does the site have the potential to provide habitat? H 1.1. Structure of plant community: indicators are Cowardin classes and strata within the Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches maybe combined for each class to meet the threshold of 3' ac or more than 10% of the unit if it is smaller than 2.5 ac. Add the number of structures checked. Aquatic bed 4 structures or more: points = 4 XEmergent 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 !f the unit has a Forested class, check if: The Forested class has 3 out of 5 strata (canopy, sub -canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon H 1.2. Hydroperiods Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or % ac to count (see text for descriptions of hydroperiods). Permanently flooded or inundated 4 or more types present: points = 3 Seasonally flooded or inundated 3 types present: points - _y_Occasionally flooded or inundated 2 types present: points Saturated only 1 type present: paints = 0 Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake Fringe wetland 2 points Freshwater tidal wetland 2 points H 1.3. Richness of plant species Count the number of plant species in the wetland that cover at least 10 W. Different patches of the some species can be combined to meet the size threshold and you do not have to name the species. Do not include Eurasian milfoil, reed canarygrass, purple loosestrife, Canadian thistle If you counted: > 19 species points = 2 5 -19 species points species ` points = 0 H 1.4. Interspersion o a stats 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. r�} None = 0 points Low = 1 point Moderate = 2 points All three diagrams in this row are HIGH = 3points Wetland Rating System for Western WA: 2014 Update 13 Rating Form - Effective January 1, 2015 Wetland name or number -8,-� H 1.5. Special habitat features: H 2.1. Accessible habitat (include only habitat that directly abuts wetland unit). Check the habitat features that are present in the wetland. The number of checks is the number of points. Calculate: 0% undisturbed habitat�0 + [(% moderate and low intensity land uses)/2)—M = 30% _..__Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long). If total accessible habitat is: _Standing snags (dbh > 4 in) within the wetland >'/3 (33.3%) of 1 km Polygon points = 3 _Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) 20-33% of 1 km Polygon points= 0 over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (10 m) 10-19% of 1 km Polygon points = 1 _Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree < 10% of 1 km Polygon points = 0 slope) OR signs of recent beaver activity are present (cut shrubs or trees that have not yet weathered H 2.2. Undisturbed habitat in 1 km Polygon around the wetland. where wood is exposed) calculate: 40% undisturbed habitat _+ [(% moderate and low intensity land uses)/21_= At least X ac of thin -stemmed persistent plants or woody branches are present in areas that are Undisturbed habitat> 50° of Polygon points = 3 permanently or seasonally inundated (structures for egg -laying by amphibians) Undisturbed habita�l0-50`i and in 1-3 patches points 2 XInvasive plants cover less than 25% of the wetland area in every stratum of plants (see H 1.1 for list of Undisturbed habitat 10-50%and > 3 patches points = 1 strata) Undisturbed habitat < 10% of 1 km Polygon points = 0 Total for H 1 Add the points in the boxes above 3 Rating of Site Potential If score is:_15-18 = H _7-14 = M _X_0-6 = L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat functions of the site? H 2.1. Accessible habitat (include only habitat that directly abuts wetland unit). Calculate: 0% undisturbed habitat�0 + [(% moderate and low intensity land uses)/2)—M = 30% If total accessible habitat is: >'/3 (33.3%) of 1 km Polygon points = 3 20-33% of 1 km Polygon points= 0 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: 40% undisturbed habitat _+ [(% moderate and low intensity land uses)/21_= Undisturbed habitat> 50° of Polygon points = 3 Undisturbed habita�l0-50`i and in 1-3 patches points 2 Undisturbed habitat 10-50%and > 3 patches points = 1 Undisturbed habitat < 10% of 1 km Polygon points = 0 H 2.3. Land use intensity in 1 km Polygon: If > 50% of 1 km Polygon is high intensity land use points = (- 2) <_ 50% of 1 km Polygon is high intensity points = 0 Total for H 2 Add the points in the boxes above Rating of Landscape Potential If score is:__K_4-6 = H _1-3 = M _< 1 = L Record the rating on the first page H 3.0. Is the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score that applies to the wetland being rated. Site meets ANY of the following criteria: points = 2 — It has 3 or more priority habitats within 100 m (see next page) — It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) — It is mapped as a location for an individual WDFW priority species — It is a Wetland of High Conservation Value as determined by the Department of Natural Resources — It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan Site has 1 or 2 priority habitats (listed on next page) within 100 m points = 1 Site does not meet any of the criteria above points = 0 Rating of Value If score is:_2 = H _1 = M _X-0 = L Wetland Rating System for Western WA: 2014 Update Rating Form - Effective January 1., 2015 Record the rating on the first page 14 Wetland name or number WDFW Priority Habitats Priority habitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympia, Washington. 177pp. h_, /vdlv,.vvi,w/,pbcml�/006'wdw) IooraccessthelisCfrmnhere: 11tIp /JwoIl lJ l j;U(/,�'U il4l 1 Vr twni/lily/hst/) Count how many of the following priority habitats are within 330 it (100 m) of the wetland unit: NOTE. This question is independent of the land use between the wetland unitand the priority habitat — Aspen Stands: Pure or mixed stands of aspen greater than I. ac (0.4 ha). — Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife (fll descriptions in WDFW PHS report). — Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. — Old-growth/Mature forests: Old-growth west of Cascade crest - Stands of at least 2 tree species, forming a multi- layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha ) > 32 in (81 cm) dbh or> 200 years of age. Mature forests - Stands with average diameters exceeding 21 in (53 cm) dbh; crown cover may be less than 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth; 80-200 years old west of the Cascade crest. — Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 - see web link above). — Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. — Westside Prairies: Herbaceous, non -forested plant communities that can either take the form of a dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161 -see web link above). — Instream: The combination of physical, biological, and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. — Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. (full descriptions ofhabitats and the definition of relatively undisturbed are in WDFW report - see web link on previous page). — Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the earth in soils, rock, ice, or other geological formations and is large enough to contain a human. — Cliffs: Greater than 25 ft (7.6 m) high and occurring below 5000 ft elevation. — Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 it (0.15 - 2.0 m), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. — Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast height of > 20 in (51 cm) in western Washington and are > 6.5 it (2 m) in height. 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OJ m p T GO OD M O O• pp :u 00 M O m M O :o m O m O m O O m M O 3; O N m O O m O O m l"a G G O n T O p F Y5 O tm ti ill O 90 F e1'1 O GO h o O O F Vl = `^V m n flJ p b] M1 G O O1 h .a O W M1 N 4 a0 d� tlO O W n m O 5p h O W F Oy O W h G O W n h O h .� O O F if. O W h ? O _ F d O O t� r- O O � 1 C W ti tt. W Of nl w w I,--. I I-il 0! uf, U!, WAl 0! w w I J co O co t� V a) L— M iiaECOLOGY ,e, WATER QUALITY IMPROVEMENT PROJECTS (TMDLs) Overview of the process Project Catalog by WRIA by County FundWrg Opportun,ties Project Development Priority Lists Related Irformation TMDL Corta:ts RELATED ECOLOGY PROGRA14S Last updated October 2016 MAbout us I Contact us Water ual t jm rovemert 'Nater Oua tj Imoroaemert Protects by Courts Jefferson County projects The foaowing table lists overvsew information for water auahty +mprovemert projects (including total max,mum daily loads, or TMDLs) for this county. Please use {mks (where avail*e) for more isformation on a project" To get additioM mformahor about the water bodies in Jefferson County please use the Water Ouahtr Assessment Auery Tool. WRIAs in Jefferson County • 1 A 16 - Skokomish Dosewailips • WRIA 17 - Quelcene-Snow • INRIA 13 - Elwha Dungeness • 'WRIA 20 - Soieduck-Hoh • WRIA 21 - Queets-Qu vault Waterbody Names Pollutants Status TMDL Leads Skokomish River Fecal Coliform EPA approved Andrew Kolosseus Tributares, Has an 360-407-7543 mplementabon plan • Purdy Creek • Weaver Creek • Ten Acre Creek • Hunter Creek Back to too of me 4 Figure C-6. Water Quality Improvement Projects — TMDLs as