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MEP2025-00004 BLD2024-01360 Wetland Mitigation - MEP Application - 2/4/2025
MASON COUNTY Mason County Permit Center Use: COMMUNITY SERVICES MEP�209.5 - DCVO Building,Planning,Environmental Health,Community Health Date Rcvd 615 W.Alder St.—Bldg.8,Shelton,Wa 98584 Phone:(360)427-9670 ext.352 ♦ Fax:(360)427-7798 N4A,SON ENVIRONMENTAL PERMIT(RESIDENTIAL):$115 171 HABITAT MANAGEMENT PLAN:$300 © 541-1 MASON ENVIRONMENTAL PERMIT(NON-RESIDENTIAL):$1500 OCONDITIONAL USE: $2000 Mason County Resource Ordinance(Chapter 17.01 MCC) ENVIRONMENTAL PERMIT APPLICATION The purpose of the Resource Ordinance is to protect Mason County's natural resource lands and critical areas and is under the authority of Chapters 36.32, 36.70A, 39.34, 58.17, 76.09, 84.33, 84.34 and 90.58 RCW. PLEASE PRINT 1. PROPERTY OWNER II Name: SCt.h+c,-, f(TA_. FW'WepKS Mailing Address: Work Phone: Home/Cell Phone: Email Address: If an agent is actin or the property owner during the permit process, complete 42. 2. AUTHORIZED AGENT Name: —T_r"V66. V1 I t iS Mailing Address: F0 F 1 17�2'D d tk L,,,� q 850? Work Phone: 3(o 0_-7S'q_1 Home/Cell Phone: Email Address: 3. PROJECT SITE Site Address: G o �SI l 11 Parcel#: 4JX-5 5a 006b5 Legal Description:Lai� cujArv-,� #19 Cal S Directions to Site: Attach a site plan showing the following: Lot Dimensions,Flood Zones, Existing Structures, Fences, Water Lines, Driveways,Drainage Plans,Shorelines, Septic System,Topography, Proposed Improvements, Easements,North Arrow,and Scale. Also draw a separate topography diagram. Rev.August 2022 4. State which section requires permit: ❑ Long Tenn Commercial Forest,Chapter 8.52.060 ❑ Frequently Flooded Areas,Chapter 8.52.130 ❑ Mineral Resource Lands,Chapter 8.52.090 ❑ Geologically Hazardous Areas,Chapter 8.52.140 ❑ Critical Aquifer Recharge Area,Chapter 8.52.120 ❑ Seismic Hazard Areas,Chapter 8.52.150 ❑ Erosion Hazard Area,Chapter 8.52.160 ❑ Fish& Wildlife Habitat Conservation Areas,Chapter ❑ In-Holding Lands,Chapter 8.52.070 8.52.170 5d Wetlands,Chapter 8.52.110 5. Identify current use of the property with existing improvements: n /' t"u)ek- 4-W-lAlf a lk"r,g/., arlt14 . CIF ,-�i f J 91116 i�rp0 a WQhtjt&I'C 6. Identify and describe the proposed project, including the type of materials to be used, construction methods, principle dimensions,and other pertinent information(attach additional sheets, if needed): 7. Describe why the action requiring this permit cannot be avoided. 71'c GLtxG2 g t 6" ghg! X e nh wd 1 cu-d LL tea - and evel, 4J--);y C,4 (yg 1-ui )e "�t,pl CI s 2i�-4,&a.4 E rnIn htff-ry.-CE 2611- l t i is UbA U d id L1 e 8. Will there be an alteration of a wetland and/or wetland vegetation area(circle one)? Yes O No 9. Identify any surface water on or adjacent to property(circle one): Saltwater O Lake ® Stream® Pond ® Wetland Drainage Ditch 10. Identify existing septic/sewer connection(circle one): If septic is located on project site, include records. Connected to Septic Connected to Community Septic() Connected to Sewer®None Existing® 11. Identify existing water supply(circle one): Public Water Supply Jam' Well 11.Type of Job(circle one): New Add Q Alteration 0 Repair 0 Demolition Q Other: 1�c�yi S �/i � � ►hRS �° �/ �ac� Print Name Signature Date Rev.August 2022 Wetland Report and Mitigation Plan - Santa Rosa Builders LLC SFR Site Address: 90 Standstill Drive N, Hoodsport,WA Prepared for: Santa Rosa Builders LLC Tax Parcel Number: 422055200005 Prepared By: West Fork Environmental 2350 Mottman Road SW, Tumwater, WA 98512 (360) 753-0485 Email: info@westforkenv.com February 4, 2025 WEST FORK _, ENVIRONMENTAL Contents 1.0 INTRODUCTION........................................................................................................................................................2 2.0 SITE DESCRIPTION AND LAND USE...........................................................................................................................2 3.0 METHODS................................................................................................................................................................3 3.1 Wetland Methods ...............................................................................................................................................3 4.0 RESULTS............................................................................................................................................................5 4.1 Office Review using Online Resources................................................................................................................5 4.1.1 USDA NRCS Soils ..........................................................................................................................................5 4.1.2 Mason County GIS Online Map....................................................................................................................5 4.1.3 National Wetlands Inventory Mapper(NWI)...............................................................................................5 4.1.4 Washington Department of Natural Resources FPARS................................................................................6 4.1.5 Washington Department of Fish and Wildlife Priority Habitats and Species(PHS) Database.....................6 4.1.6 Precipitation.................................................................................................................................................6 4.2 Field Results ........................................................................................................................................................6 4.2.1 Wetland A....................................................................................................................................................6 5.0 WETLAND FUNCTIONAL VALUES.............................................................................................................................7 6.0 REGULATORY CONSIDERATIONS.............................................................................................................................7 6.1 Standard Wetland Buffer....................................................................................................................................7 6.2 Buffer Reduction.................................................................................................................................................9 6.3 Mason Environmental Permit.............................................................................................................................9 7.0 PROPOSED MITIGATION..........................................................................................................................................9 7.1 Mitigation Sequencing........................................................................................................................................9 7.2 Existing Conditions............................................................................................................................................10 7.3 Ongoing Maintenance.......................................................................................................................................10 7.4 Proposed Mitigation Plan..................................................................................................................................10 7.4.1 Schedule.....................................................................................................................................................12 7.4.2 Monitoring.................................................................................................................................................12 7.4.3 Performance Standards.............................................................................................................................12 7.4.4 Maintenance and Contingency..................................................................................................................12 7.4.5 Cost and Performance Bond......................................................................................................................13 8.0 CLOSING.................................................................................................................................................................13 9.0 REFERENCES...........................................................................................................................................................14 Appendix:Figures,Photos,Wetland Test Plot Data Forms,Wetland Rating Forms/Maps Critical Areas Report Tax Parcel.422055200005 1.0 INTRODUCTION West Fork Environmental was contracted to delineate and establish buffers for critical area habitat at 90 Standstill Drive North, Hoodsport, Washington (Figure 1). A wetland study was requested for an application to place a manufactured home and septic on the property. This evaluation identified critical areas, including wetlands and streams that occur near the project area. 2.0 SITE DESCRIPTION AND LAND USE The 0.29-acre parcel is currently undeveloped and located east of Standstill Lake. It is identified as tax parcel number 422055200005 (Figure 1). The property is in Section 5 of Township 22 North, Range 04 West near Lake Cushman. The property appears to have been in recreational use in the past (Figure 2). Neighboring parcels contain storage sheds and RVs. LaKe Cushman Lookout Q 7 Glen Ayr Resort Q 0 Q Dow Creek RV Resort $ oodsport 4�^ n 9 vss Dive Labe KOKaiee Private ParK Figure 1. Site location west of Hoodsport near Lake Cushman. 2 Critical Areas Report Tax Parcel:422055200005 dt .M,F�� i'+� 'f '�R f rs• a �R M �r VIA� ~ �� •' w k r 4!, � 'fir+ ,1 � i.. '¢••.��, `+ !� Fr n -1f► � Figure 2. Current conditions on the subject parcel. 3.0 METHODS On January 23, 2025, a field evaluation was conducted on the subject property to identify critical area habitat. West Fork walked the property to describe current hydrologic, soil and vegetative conditions. Habitat was assessed utilizing the Routine Determination Method described in the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys and Coast Region (US Army Corps of Engineers 2010) by staff trained in evaluating these areas. Potential wetland features were examined for the presence of indicators of wetland hydrology, hydrophytic vegetation and hydric soils. In addition to the on-site visit, National Resource Conservation Service (NRCS) soil survey data, National Wetland Inventory(NWI) maps,and GIS data from Mason County's public GIS mapping tool were utilized to aid in the determination. 3.1 Wetland Methods Under Mason County Municipal Code Title 8.52.110—Wetlands: "Classification. The following shall be classified as wetland areas. 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. 3 Critical Areas Report Tax Parcel:422055200005 However, wetlands may include those artificial wetlands intentionally created from non- wetland areas created to mitigate conversion of wetlands, if permitted by the county." Hydrophytic vegetation includes plant species that are adapted to prolonged periods of soil saturation. Plant species were identified using taxonomy in a Field Guide to the Common Wetland Plants of Western Washington & Northwestern Oregon by Sarah Spear Cooke, Editor, the U.S. ACOE Wetland plant list and Plants of the Pacific Northwest Coast by Jim Pojar and Andy MacKinnon, Editors. Vegetation at each plot is described with the ACOE National Wetland Plant List indicator status described below': • Obligate Wetland (OBL)—highly likely to be in a natural wetland • Facultative Wetland (FACW)—most likely to be present in a natural wetland • Facultative (FAC)—can be present in both a natural wetland and non-wetland environment • Facultative Upland (FACU)—may be present in a natural wetland, but most likely to be seen in non-wetland conditions • Obligate Upland (UPL)—most likely to occur in non-wetland conditions Soil test pits were excavated to 16-20 inches below the surface to evaluate soil characteristics and hydrological conditions.Soil color was evaluated using the Munsell Color Chart(Munsell Color, 1988).We characterized the soil profile and assessed hydric soil indicators as outlined in the Regional Supplement datasheets. Hydric soil forms where soils are saturated, flooded or ponded for long enough during the growing season to develop anerobic conditions in the upper 12 inches. In general, low chroma colors form in the soil matrix and brightly colored redoximorphic features are indicative of a fluctuating water table. In addition, organic material in the upper surface layers provide indicators of hydric soils. Wetland hydrology indicators were assessed in the study area using the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys and Coast Region Version 2.0 (US ACOE 2010) standards to evaluate indicators of depth to water table, presence of indicators showing seasonal presence of water such as depressions or drainage pathways, oxidized rhizospheres, water stained leaves and position on the landscape. The ACOE standard for wetland hydrology includes 14 or more consecutive days of water in the upper 12 inches below the soil surface during the growing season, in a minimum of 5 years out of 10. Wetland hydrology indicators were evaluated using the wetland determination data forms at each plot. The Washington State Wetland Rating System-2014 Update Version 2.0 (Hruby and Yahnke 2023) was used to rate the wetland to determine buffer width.The edge of an onsite wetland was located using GPS waypoints recorded on a handheld Garmin GPSMap 64 for mapping purposes. A Laser Tech TruPulse200x laser rangefinder was used to measure horizontal distance from the wetland edge to the top of the slope on the property.Then a 300-foot reel tape was used to measure to the proposed home site. 'ACOE National Plant List(https://cwbi-app.sec.usace.army.mil/nwpl_static/v34/home/home.html) 4 Critical Areas Report Tax Parcel:422055200005 4.0 RESULTS 4.1 Office Review using Online Resources 4.1.1 USDA NRCS Soils Soils mapped on the subject parcel are Hoodsport gravelly sandy loam, 5 to 15%slopes (Figure 4). HOODSPORT SERIES The Hoodsport series consists of moderately well drained, moderately deep soils formed in glacial till on plains and foothills from sea level to 500 feet.The average annual precipitation is about 60 inches.The mean annual temperature is about 50 degrees F. TAXONOMIC CLASS: Medial-skeletal, mixed, mesic Typic Haploxerands TYPICAL PEDON: Hoodsport very gravelly sandy loam,forested. RANGE IN CHARACTERISTICS: Mean annual soil temperature is estimated to range from 47 degrees to about 53 degrees F.These soils are usually moist, but they are dry in some part between 8 and 24 inches for 45 to 60 cumulative days.The particle-size control section averages more than 50 percent coarse fragments.The soil ranges from moderately acid to very strongly acid. Depth to the strongly cemented till, ranges from 20 to 40 inches. GEOGRAPHIC SETTING: Hoodsport soils are on rolling to hilly glaciated uplands at elevations from sea level to 500 feet.They are in a mild marine climate; summer is dry and cool and most of the precipitation falls as rain in the late autumn, winter, and early spring.They formed in noncemented glacial till underlain by strongly cemented basal till. Mean January temperature is 40 degrees F.; mean July air temperature is 60 degrees F.; and a mean annual temperature is 50 degrees F., and mean annual precipitation ranges from 55 to 65 inches.The 28 degrees F. freeze-free season is 216 days and the 32 degrees F.freeze-free season is 161 days. DRAINAGE AND PERMEABILITY: Well drained. Runoff is medium; permeability of the B2 horizon is moderate; of the C1 horizon, rapid; and of the C2 horizon, very slow. USE AND VEGETATION: Used primarily for woodland and a few areas of pasture. Native vegetation is Douglas-fir, red alder, and western hemlock with an understory of salal,evergreen huckleberry, salmonberry,thimbleberry,trailing blackberry, red huckleberry, Oregon grape, red elderberry, tinging nettle, western bracken fern, and western sword fern. 4.1.2 Mason County GIS Online Map The Mason County online GIS shows a wetland north of the subject property stretching from N Lake Cushman Road in the east to a cul-de-sac at the end of North Standstill Drive N (Figure 5). 4.1.3 National Wetlands Inventory Mapper (NWI) The NWI mapper shows seasonally flooded palustrine emergent (PEM1C) and scrub-shrub (PSS1C) wetland north of the property. A riverine wetland (R4SBC) runs through the wetland polygon towards Lake Standstill (Figure 6). 5 • Critical Areas Report Tax Parcel:422055200005 4.1.4 Washington Department of Natural Resources FPARS The online mapping tool shows a Type F stream to the center of the wetland polygon north of the property.Type N streams feed the wetland from the north and east (Figure 7). 4.1.5 Washington Department of Fish and Wildlife Priority Habitats and Species (PHS) Database The WDFW Priority Habitats and Species database does not show any threatened or endangered species mapped on the parcel but the area does fall in a masked township for Northern spotted owl (Figure 8). Freshwater emergent wetland is mapped north of the property. 4.1.6 Precipitation The standard rainfall analysis below is based on records for the three months prior to field survey. Normal precipitation conditions were present in the months prior to our fieldwork (Table 1). The 10-days before our survey had 0.0 inches of rain which was lower than usual for January precipitation (Figure 9). Table 1.Monthly precipitation data for Mason County,Washington. Month Month WETS WETS WETS 2024(in) Condition Condition weight Product <30% Average >30% Value Value October 4.47 8.4 10.26 7.17 N 2 3 6 November 10.8 15.56 18.5 18.72 w 3 2 6 December 11.24 15.72 18.59 18.42 N 2 1 2 Sum 14 Conclusion Normal Source:AgACIS for Cushman Powerhouse N2,WA Sum 6-9=drier than normal Sum 10-14=normal Sum 15-18=wetter than normal 4.2 Field Results West Fork Environmental walked the subject property and observed wetland habitat north of the property. The parcel has been used recreationally in the past and has a level cleared area to a vegetated slope near the wetland.Two test plots were described to determine the wetland edge.The wetland edge was delineated immediately north of the property following an abrupt change in slope and vegetation. 4.2.1 Wetland A Wetland A extent appears consistent with Mason County GIS and NWI depiction of habitat. The wetland is surrounded by residential and recreationally used properties. Hydrology: Wetland hydrology was observed during the site evaluation (Al - surface water). Sources of hydrology to the wetland include streamflow from mapped Type N streams, direct precipitation, and surface runoff from the upland (Appendix). Vegetation: Hydrophytic vegetation was observed in Wetland A near the property and included red osier dogwood (Cornus sericea, FACW) and willow spp (Solix sp, FACW). Nearby upland forest upslope of the wetland included Douglas fir (Pseudotsugo menziesii, FACU), western red cedar (Thuja plicata, FAC), Oregon grape (Mahonia nervosa, FACU), salal (Gaultheria shallon, FACU), evergreen huckleberry (Vaccinium ovatum, FACU), with sword fern (Polystichum munitum, FACU). 6 Critical Areas Report Tax Parcel:422055200005 Soil:Soils sampled in Wetland A were flooded at the time of survey.The upper 8"was a mucky black 10YR 2/1 with a grayish brown 10YR 5/2 silty loam at 8-16" with brownish yellow 10YR 6/8 redoximorphic features. Upland soils on the slope were characterized as a brown 7.5YR 4/4 gravelly sandy loam 5.0 WETLAND FUNCTIONAL VALUES Wetlands provide valuable ecological functions including stormwater storage, groundwater recharge, improvement of water quality, flood protection, erosion control and habitat for fish and wildlife species among other functions. Wetland functions were assessed using information gathered while rating the wetland using Washington State Department of Ecology's Western Washington State Wetland Rating System-2014 Update V2.0(Hruby and Yahnke 2023). Wetland A was rated as a Category II wetland with 7 habitat points(Table 2,Appendix D). Table 2.Summary of Wetland Rating Scores (data forms in Appendix). Unit Wetland Rating Form Scores Total Score Category Water quality Hydrology Habitat Wetland A 9 6 7 22 II 6.0 REGULATORY CONSIDERATIONS The required wetland buffer is described in Mason County's Municipal Code for wetlands(8.52.110(E)). 6.1 Standard Wetland Buffer Table 8.52.110(B): Ratings of Impact from Land Uses describes that in this case, a "high" impact from the proposed land use is expected due to <1 acre parcel size. Wetland A is a Category II wetland requiring a 150-foot buffer (habitat score of 7) under 8.52.110—Wetlands. All critical area buffers require an additional 15-foot structure setback. (B) Wetland Buffers. (i)Buffer Widths. Wetland buffers(plus a fifteen foot structural setback)shall be required for all regulated wetlands.Any wetland created,restored, or enhanced as compensation for approved wetland alterations shall also include a buffer required for the category of the created, restored, or enhanced wetland. The buffer widths are established by adjusting a base width for the category of wetland at the site for the habitat value as scored by the wetland rating system and for the land use intensity of the proposed activity.All buffers shall be measured horizontally from the wetland boundary as surveyed in the field. The width of the wetland buffer shall be determined by the following process: a. The wetland is categorized according to wetland ratings system category as shown in Table 8.52.110(A), b. Table 8.52.110(B)rates examples of different land uses for intensity of impacts to wetlands; c. The width of the buffer is determined based on the habitat value scored by the wetland on the wetland rating system and on the land use intensity of the proposed use as shown in Tables 8.52.110 C,D, E,or F. d. Regulated buffers shall not extend across legally established public roads or hardened surfaces to include areas which are functionally isolated from the critical area. Buffer reductions under this provision are allowed only when the functional disconnection has been documented through a report 7 Critical Areas Report Tax Parcel:422055200005 by a qualified professional that demonstrates the area is functionally isolated. The county shall consider the hydrologic,geologic,and/or biological habitat connection potential and the extent and permanence of the physical separation. Table 8.52.110(B):Ratings of Impact from Land Uses. Rating of impact from Examples of land uses that cause the impact based on common zoning categories proposed changes in land use High •Commercial •Urban •Industrial •Institutional •Retail sales •Residential(more than 1 unit/acre) •Conversion to high intensity agriculture(dairies,nurseries and green houses,growing and harvesting crops requiring annual tilling,raising and maintaining animals) •High intensity recreation(golf courses,ball fields) Moderate •Single-family residential(1 unit/acre or less) •Moderate-intensity open space(parks with biking,jogging,etc.) •Conversion to moderate intensity agriculture(orchards and hay fields) •Paved trails •Building of logging roads • Utility corridor or right-of-way shared by several utilities and including access/maintenance road Low • Forestry(cutting of trees only) • Low intensity open space(hiking,bird watching,preservation of natural resources,etc.) • Unpaved trails •Utility corridor without a maintenance road and little or no vegetation management Table 8.52.110(E): Width of Buffers Required to Protect Category II Wetlands . Wetlands Scoring Between 20 and 22 Points on the Wetlands Rating System. Wetland Characteristics Buffer Widths by Impact of Other Measures Recommended Proposed Land Use for Protection (Apply most protective if more than one criterion is met.) Moderate level of function for habitat(score Low—75 ft No recommendations at this time for habitat 6-7 points) Moderate—110 ft High— 150 ft If buffer is located on a steep slope,the width shall be increased per subsection 8.52.110(5)(B)(ii)e. 8 Critical Areas Report Tax Parcel:422055200005 6.2 Buffer Reduction 8.52.110—Wetlands,describes that a wetland buffer may be reduced when high-intensity impacts like those in this project are proposed. (iv) Wetland Buffer Reduction. The width of the buffer may be reduced for proposed land uses with high-intensity impacts under the following conditions: a. For wetlands that score moderate or high for habitat(five points or more for the habitat functions), the width of the buffer may be reduced to that required for moderate-intensity impacts provided that: 1.A relatively undisturbed, vegetated area corridor at least one hundred feet wide is protected between the wetland and any other priority habitats as defined by the Washington State Department of Fish and Wildlife. Protection of the entire corridor shall be assured by a conservation easement or equivalent legal protection; 2. Measures to minimize the impacts of the land use shall be applied. Examples of these measures are shown in Table 8.52.110(G). b. For wetlands that score less than five points for habitat, the buffer width can be reduced to that required for moderate-impact land uses provided that measures to minimize the impacts of the land use shall be applied. Examples of these measures are sho wn in Table 8.52.110(G). 6.3 Mason Environmental Permit A Mason Environmental Permit (MEP) will be required for this project because impacts are proposed within the wetland buffer. 7.0 PROPOSED MITIGATION The site plan was designed to minimize impacts on the wetland buffer. The septic is proposed as far towards N Standstill Drive North as possible. The manufactured home is proposed a minimum setback distance from the western property line and from the septic tank. As measured in the field,the north edge of the manufactured home is proposed 73 feet from the wetland edge. A vegetated buffer on the slope behind the home is maintained in mature forest with shrub and fern understory.Currently the area immediately north of the proposed home (53 x 83 ft) is not vegetated and was previously used for recreational purposes.This section describes a mitigation proposal to offset unavoidable impacts to wetland buffer habitat. 7.1 Mitigation Sequencing MCC 8.52.110 (6) outlines mitigation sequencing steps to prevent and minimize impacts to wetland habitat (A) and rectify impacts when they cannot be avoided (B). Figure 3 shows that a large portion of the property lies within the wetland buffer. Unavoidable impacts from the home in the wetland buffer of 1,280 sq ft will be mitigated through a buffer enhancement planting plan (Figure 11). (6)Mitigation for Wetland Impacts. (A)If wetland or wetland buffer impacts are proposed, the following sequence of review must be considered. (i)Avoid the impact all together by not taking a certain action or parts of an action; (ii)Minimize the impact by limiting the degree or magnitude of the action and its implementation, by using appropriate technology, or by taking affirmative steps to avoid or reduce impacts; (iii)Rectify the impact by repairing, rehabilitating or restoring the sensitive areas; (iv)Reduce or eliminate the impact over time by prevention and maintenance operations; 9 Critical Areas Report Tax Parcel:422055200005 (v)Compensate for the impact by replacing, enhancing or providing substitute areas and environments and replace the ecological processes and functions of the resource; (vi)Monitor the impact and taking appropriate corrective measures. (e)As a condition of any permit allowing alteration of wetlands and/or wetland buffers, the county shall require that the applicant engage in the restoration, creation or enhancement of wetlands and their buffers in order to offset the impacts resulting from the applicant's actions. The project considered mitigation sequencing as follows: (i)The proposed home and septic avoid direct impacts to wetland habitat. The septic and home have been located as close to N.Standstill Drive N as possible given the lot configuration to avoid impacts. (ii)The proposed project is located in an area previously used as recreational space and minimizes any removal of native vegetation.The existing mature forest at the wetland edge will not be impacted. (iii)The project is proposed in a previously disturbed area. Minimal impacts to native vegetation will be required for the project.A planting plan is proposed to increase wetland buffer function and restore native vegetation where it was previously cleared. (iv)All areas of intact forest and native vegetation will be retained.The residential use will be centered near the road to avoid impacting wetland habitat. (v)A buffer enhancement planting plan is proposed to compensate for unavoidable impacts in the wetland buffer habitat(Figure 11).The additional planting will increase the density of native plants between the home site and critical area habitat providing habitat for wildlife and increasing functionality of the wetland buffer. (vi)The landowner will monitor the success of the buffer enhancement planting plan for 3 years to ensure plants establish. 7.2 Existing Conditions An intact mature forest is maintained between the wetland edge and on the slope north of the property. The wetland buffer on the leveled portion of the property was previously cleared and currently does not contain native vegetation. 7.3 Ongoing Maintenance The home site is proposed in a disturbed portion of the property near N Standstill Drive N. The native forest in the inner wetland buffer will continue to provide wildlife habitat, screening, and other functions north of the proposed residence. 7.4 Proposed Mitigation Plan Buffer enhancement is proposed to mitigate unavoidable wetland buffer impacts from the project and includes planting native vegetation in a disturbed area north of the proposed project (Figure 3). Trees, shrubs, and ferns will be planted in the designated planting area (3,030 ftz, 25 feet from slope towards home and across the property width) within the wetland buffer to enhance the native vegetation cover. Plants will be sourced from a native plant nursery. 10 Critical Areas Report Tax Parcel:422055200005 The goal of the planting plan is to revegetate a previously cleared portion of the buffer with native plants to increase species diversity, increase screening between the wetland and the home, and provide additional habitat structure for wildlife. The plants listed below were selected based on the surrounding native vegetation that was observed during our site visit and to increase species diversity. If the desired species are not available, then plants with similar ecological functions are acceptable. Small tree spacing of approximately 18 feet and shrub spacing of approximately 8 feet following Mason County guidance is recommended. A general guide to planning location in provided below and may be adjusted as desired onsite. In general, taller species are recommended in the northern portion of the planting area and lower growing shrubs (snowberry and thimbleberry) are recommended at the southern edge. Table 3. Number of native plants for buffer enhancement planting area (location in Figure 9). Common Name Scientific Name Quantity Cost Black hawthorn Crataegus douglasii 3 $11.98 Cascara Rhamnus purshiana 3 $11.98 Vine maple Acer circinatum 5 $11.98 Snowberry Symphoricarpos albus 9 $11.98 Baldhip rose Rosa gymnocarpa 9 $12.98 Oceanspray Holodiscus discolor 6 $11.98 Mock orange Philadelphus lewisii 6 $11.98 Thimbleberry Rubus parviflorus 6 $11.98 Sword fern Polystichum munitum 50 $2.98 Estimated Plant Cost 47+fern $721.06 *Cost estimates for 1-gallon plants from Woodbrook Nursery,Gig Harbor, WA. Soils should be decompacted prior to planting as cleanup and construction activity around the site has occurred over the years.As the plants are installed,a layer of about 3-4 inches of mulch should be applied around plants ensuring that area is left around each stem/trunk. Native plant source options: 1) Woodbrook Nursery, Gig Harbor,WA, 253-857-6808;www.wood brook.net 2) Mason County native plant sale, pickup February, https://www.masoncd.org/store/c1/plant-sale 11 Critical Areas Report Tax Parcel:422055200005 0 Q • • • • • Recommended Plant Locations • Plant QBlack hawthorn QCascara Vine maple Baldhip rose Cr Mock orange • Oceanspray • Snowberry • ThimhlPhPrry 7.4.1 Schedule The mitigation planting effort will begin after permits are received. Planting should occur in fall to spring (October through March)to ensure the best establishment timing for new plants. 7.4.2 Monitoring The landowner will conduct monitoring of the planting area for three years to evaluate planting success and vegetative cover. An assessment of conditions will be recorded at the end of the construction phase and used to compare subsequent monitoring. Photo points will be established to document the general appearance of the vegetation in the buffer enhancement planting area. Observations of wildlife use will be recorded (direct observations, nesting,tracks, or other signs). 7.4.3 Performance Standards Planting success will be based on 80% plant survival following each monitoring event. Success can also be based on having a cover of at least 60% native tree and shrubs by the end of the 3-year monitoring period. 7.4.4 Maintenance and Contingency The landowner will be responsible for performing the required maintenance duties on the site to ensure plant survival. Maintenance duties will include watering, upkeep of wildlife repellent, competing vegetation management, and replanting replacements for plants that have died. New plants should be 12 Critical Areas Report Tax Parcel:422055200005 watered during the summer months to increase the chance of first year survival, particularly in the first two years after planting. Site maintenance will involve the following: • Plants that die will be replanted • Weeding and continuous removal of any competing non-native vegetation • Mulching with wood chips is suggested to retain water and reduce invasive plants • Wildlife browse protection may be required, particularly on cedar trees. 7.4.5 Cost and Performance Bond Estimated cost of the buffer enhancement project.The landowner should collaborate with Mason County to determine if a bond will be required for this project. Table 4.Surety bond estimate for mitigation planting project. Item Description Estimated cost Plants $721.06 Mulch/Landscape fabric $250.00 Planting/removal of invasives Owner to do Monitoring ($250/report) Owner to do and submit to County Contingency (plants) $200.00 Total (+25%) $1,171.06 8.0 CLOSING The critical areas evaluation detailed in this report were performed consistent with generally accepted professional consulting practices.West Fork Environmental identified an off-site wetland north of the property.The wetland requires a reduced 110-foot buffer plus a 15-foot construction setback according to Mason County municipal code.The applicant proposes mitigating unavoidable impacts from the proposed home site with a planting plan to improve wetland buffer habitat. West Fork Environmental completed the determination of wetlands reported in this document for use by Santa Rita Builders LLC.This determination is based on scientific methods and our best professional judgement. Final approval of conclusions detailed in this report are dependent on review with local, state,and federal regulatory agencies. No outcomes are warranted by this report.All findings from this assessment are subject to confirmation and consensus with the Mason County Planning Department and other regulators.The content and data put forth in this report were collected and prepared by the undersigned. Please call our office at(360) 753-0485 with questions or if you require any additional information. ` 4a.� - Heidy Barnett Craig Marbet Sr.Fish and Wildlife Biologist Wetland Specialist 13 Critical Areas Report Tax Parcel:422055200005 9.0 REFERENCES Hruby,T., and A.Yahnke.Washington State Department of Ecology. 2023.Washington State Wetlands Rating System: for Western Washington 2014 Update Version 2.0. Publication Number 23-06- 009, Olympia, Washington. Mason County Parcel Viewer Map. https://gis.co.mason.wa.us/mason/(accessed—January 2025) U.S.Army Corps of Engineers, Environmental Laboratory. 1987. Army Corps of Engineers Wetlands Delineation Manual.Technical Report Y-87-1. U.S. Army Engineer Waterways Experiment Station,Vicksburg, Mississippi. U.S.Army Corps of Engineers. 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains,Valleys, and Coast Region (Version 2.0). ERDC/EL TR- 10-3,Vicksburg, MS. U.S. Department of Agriculture NRCS Soilweb. https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx. (Accessed -January 2025) Washington Department of Fish and Wildlife. Priority Habitat and Species Database (PHS Online). http://apps.wdfw.wa.gov/phsontheweb/. (Accessed -January 2025) 14 Critical Areas Report Tax Parcel:422055200005 Figure 3.Test plot locations, location of Wetland A with a 110-foot reduced wetland boundary.The mitigation planting area is shown at the north end of the property. (Parcel boundary is approximate— taken from Mason County online mapping resources) 3,030 sq ft mitigation planting area 110'reduced buffer 15'construction setback Standstill Drive North 90 Standstill Drive North Legend Note: property lines TP: 422055200005 Were obtained from N Vil6nes_Wetland Edge I_1 construction setback Mason County online GIs ♦ milines_Test Plots Wetland resources and not Map Created )an 29,2025 0 VT LINES_Parcel _ Mason Parcels intended to be used as Map Datum:NA01983 HARN Coordinate System:WA State Plane,South Zone BufferType Mitigation survey of the property. Map Sole:1:600 Q reduced WeWEST FORK 0 20 40 80 Feet ENVIRONMENTAL I I 1 I i I I I I 15 Critical Areas Report Tax Parcel:422055200005 Figure 4. NRCS soils for subject parcel. 3 IYtvY R��auty� YMb`J�a Yiv�t ','"1]fll: � Con�r.�om�S�aiu rLlcfa.�m9�Rl�Yn Ylt�I Yam�y Map Unit Legend Wp Unit hniol Wp Una Nr Acne In ACH /WlrirtdA61 w�..y�. q'Yi. 1 Sell, :�! ��a Tara lot Ana oQ In4ratt o.ti MIRQlL 16 Critical Areas Report Tax Parcel:422055200005 Figure 5. Mapped wetland and stream in the Mason County GIS mapping tool (parcel outlined in red). Mason County WA GIS Web Map V. LM»r[r•.p ',�a;��;yk:•fit",�-�:�;�k.•?!�•",fir:�'.�=ilk -yj ?�." / A 1f2912025,8:19:117 AM 1:3,050 0 0.03 005 0.t mi 13 Calrey Ba EIMFy NHD wafer ea.ze: No Filled — Name 0 004 Dag 0 Ia. ❑ Na Name Tan.Parceh;loom n la 1 30.000 QNR Wager Courses NHD Wafer Bodes _ s, —r„"Eft C-- V,r, 0 ii• „ —:F C` e uenci,"us Na a Fish fA" rrs PARCM -- rff nags.K ��� t— �¢+.YETI Esl ;rvK Kv,o�lr Upr•.YL.r�1� Non.fish s"us u"c'e.ns,Lr l No Name uasv_�'fr wR G3 w.e r.�o Mckra+ 4m•::n/fr d�cW.f�cntrf1 v Vr'�/rn d wCW sal m�b®�Irvn r en L M1SW V•K'rormaM►'A�WcL+r�f0 17 _T Ott U.S.Fish and Wildlife Service National Wetlands Inventory standstill rD e ' y C, 3 Qj f. f � � N r F f•• ' r rt f . 00 ,. (MD w ! rD o F yi 1:7,523 �- 0 0.05 0.1 0.2 mf • 0 0.1 02 0.4 km O x January23.2025 This map a for general reference 'M3 only The US Fish and C Service is not responsible fa the a¢uacy or currentness of the base data shown on this map All wettands retefed data shoed Wetlands Freshwater Emergent Wetland Lake be ased in accordance wnh the layer metadate found on the p MleUands Mapper web site. N Estuarine and Manne Deepwater ' Freshwater Forested/Shrub Wetland Other c Estuarine and Manna Wetland Freshwater Pond ® Rivenne ti Nrf ona 1Vci•md:fiVe.i¢y 'i: O TN,Page——dreel by ens NWI mapL Cn 4 Critical Areas Report Tax Parcel:422055200005 Figure 7. Washington Department of Natural Resources Forest Practices Application Mapping Tool. Forest Practices Activity Map-Applimilon S A 5 LnheCushmen r F LamSWFaeM •,t O7HR. ,R�'I t '3� ng br�nsgn �S1r� MOW" LAOO—erva- --- ra..relr.lst wva 5O5 T22.ON RO&W^8"Mft wr[sa..... V R04.OW a412 r.+a elr. 'wwts.,lrts ''f 11uet h � v�^L Slu�w Esnet tin uud nrrq A.aen I d tr nrp b v . .yyvsls�sd. e a!00 Y e001flIt Fla...Our b rnanpn n d�and t.I�0 b 0 TIO {00 we ar Riiii i R60URCLS "�"°"""M""r�"1 &�" " _ Fri celrul aeee�l�uoelaa�efr ru.wn�u•.a�..�a e /we an rn.re.na bA az w!n mlm r Oafs 1;,72M T~4 SO FV 19 Critical Areas Report Tax Parcel:422055200005 Figure 8. WDFW Priority Habitats and Species (PHS) database for the subject parcel. Priority Habitats and Species on the Web try A nr+rpatoaiIc e1InraW Pad Mr User Er*V ooar Vts horn PHS SpedesMabkarts Overview: t!!W ErrrtWt lvwI" INA M I" No Nyv.hvr SKOW cm ErdwgQod riffs 20 Critical Areas Report Tax Parcel:422055200005 Figure 9. Rainfall Acumulation in 10 days before fieldwork (1/13/25 to 1/23/25). AgACIS for Mason County Accumulated Precipitation - CUSHMAN POWERHOUSE#2, WA Click and drag to zoom to a shorter time interval,green black diamonds represent subsequent missing values 20 15 10 5- 0 Jan 14 Jan 16 Jan 18 Jan 20 Jan 22 2025 accumulation —Normal —Highest(1974) —Lowest(2025) vo.,wae by ncLs 21 Critical Areas Report Tax Parcel:422055200005 Appendix B: Site Photos View of subject property looking north from Standstill Drive N (left) and view of north end of the property at the edge of the forested slope (right). Y TP-1: Wetland A, ponded at the time of survey to the weltand edge. s TP-2: slope near Wetland A. 22 U.S. Army Corps of Engineers OMB Control#:0710-0024,Exp:11/30/2024 WETLAND DETERMINATION DATA SHEET—Western Mountains,Valleys,and Coast Region Requirement Control Symbol EXEMPT: See ERDC/EL TR-10-3; the proponent agency is CECW-CO-R (Authority:AR 335.15,paragraph 5-2a) Project/Site:TP#422055200005 City/County: Hoodsport/Mason Sampling Date: 1/23/25 Applicant/Owner: Santa Rita Builders LLC State: WA Sampling Point: TP-1 Investigator(s):Heidy Barnett,Craig Marbet Section,Township, Range: Sec 5 Twp 22 N Rge 04W Landform(hillside,terrace,etc.): depression Local relief(concave,convex, none): concave Slope(%): 0 Subregion(LRR): LRR A, MLRA 2 Lat: 47.425301 Long: -123.214032 Datum: NAD 1983 Soil Map Unit Name: Hoodsport gravelly sandy loam 15 to 30% NWI classification: none Are climatic/hydrologic conditions on the site typical for this time of year? Yes x No (If no,explain in Remarks.) Are Vegetation ,Soil or Hydrology significantly disturbed? Are"Normal Circumstances'present? Yes x 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 X No Is the Sampled Area Hydric Soil Present? Yes X No within a Wetland? Yes X No Wetland Hydrology Present? Yes X No Remarks: VEGETATION-Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: samuewan«ommunn, ) %Cover Species? Status Dominance Test worksheet: 1. None Number of Dominant Species That 2. Are OBL,FACW,or FAC: 2 (A) 3. Total Number of Dominant Species 4. Across All Strata: 2 (B) =Total Cover Percent of Dominant Species That Sapling/Shrub Stratum (Plot size: , .1.s n1 Are OBL, FACW,or FAC: 100.0% (A/B 1. Comus alba 80 Yes FACW 2. Salix lucida 20 Yes FACW Prevalence Index worksheet: 3. Total%Cover of: Multiply by: 4. OBL species 0 x 1 = 0 5. FACW species 100 x 2= 200 100 =Total Cover FAC species 0 x 3= 0 Herb Stratum (Plot size: sample plant communa, ) FACU species 0 x 4= 0 1. None UPL species 0 x 5= 0 2. Column Totals: 100 (A) 200 (B) 3. Prevalence Index =B/A= 2.00 4. 5. Hydrophytic Vegetation Indicators: 6. _1 -Rapid Test for Hydrophytic Vegetation 7. X 2-Dominance Test is>50% 8. X 3-Prevalence Index is s3.0' 9. 4-Morphological Adaptations'(Provide supporting 10. data in Remarks or on a separate sheet) 11. _5-Wetland Non-Vascular Plants' =Total Cover —Problematic Hydrophytic Vegetation' (Explain) Woody Vine Stratum (Plot size: vm..w.m omm ry ) 'Indicators of hydric soil and wetland hydrology must 1. None be present, unless disturbed or problematic. 2. Hydrophytic =Total Cover Vegetation %Bare Ground in Herb Stratum 40 Present? Yes X No Remarks: ENG FORM 6116-9,JUL 2018 Western Mountains,Valleys, and Coast—Version 2.0 SOIL Sampling Point: TP-1 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color(moist) % Color(moist) % Type' Locz Texture Remarks 0-8 10YR 2/1 100 Mucky Peat flooded 8-16 10YR 5/2 60 10YR 6/8 40 C M Mucky Sand Prominent redox concentrations 'Type: C=Concentration,D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils3: _Histosol(Al) —Sandy Gleyed Matrix(S4) 2 cm Muck(A10)(LRR A, E) X Histic Epipedon(A2) _Sandy Redox(S5) _Iron-Manganese Masses(F12)(LRR D) X Black Histic(A3) —Stripped Matrix(S6) —Red Parent Material(F21) _Hydrogen Sulfide(A4) _Loamy Mucky Mineral(F1)(except MLRA 1) _Very Shallow Dark Surface(F22) _1 cm Muck(A9)(LRR D,G) _Loamy Gleyed Matrix(F2) —Other(Explain in Remarks) X Depleted Below Dark Surface(Al 1) —Depleted Matrix(F3) _Thick Dark Surface(Al2) Redox Dark Surface(F6) 3Indicators of hydrophytic vegetation and —Sandy Mucky Mineral(S1) —Depleted Dark Surface(F7) wetland hydrology must be present, 2.5 cm Mucky Peat or Peat(S2)(LRR G) Redox Depressions(F8) unless disturbed or problematic. Restrictive Layer(if observed): Type: Depth(inches): Hydric Soil Present? Yes X No Remarks: soils were flooded at the time of surrey,auger used to collect smaple for assessing soil colors HYDROLOGY Wetland Hydrology Indicators: Primary Indicators(minimum of one is required; check all that apply) Secondary Indicators(2 or more reouired) x Surface Water(Al) X Water-Stained Leaves(69)(except X Water-Stained Leaves(69)(MLRA 1,2 x High Water Table(A2) MLRA 1,2,4A,and 4B) 4A,and 4B) x Saturation(A3) —Salt Crust(1311) —Drainage Patterns(1310) —Water Marks(61) _Aquatic Invertebrates(1313) _Dry-Season Water Table(C2) _Sediment Deposits(62) _Hydrogen Sulfide Odor(C1) _Saturation Visible on Aerial Imagery(C9) _Drift Deposits(133) _Oxidized Rhizospheres on Living Roots(C3) X Geomorphic Position(D2) _Algal Mat or Crust(134) _Presence of Reduced Iron(C4) _Shallow Aquitard(D3) —Iron Deposits(B5) _Recent Iron Reduction in Tilled Soils(C6) X FAC-Neutral Test(D5) —Surface Soil Cracks(B6) _Stunted or Stressed Plants(D1)(LRR A) _Raised Ant Mounds(D6)(LRR A) _Inundation Visible on Aerial Imagery(67) _Other(Explain in Remarks) _Frost-Heave Hummocks(D7) x Sparsely Vegetated Concave Surface(68) Field Observations: Surface Water Present? Yes x No Depth(inches): Water Table Present? Yes x No Depth(inches): Saturation Present? Yes x No Depth(inches): Wetland Hydrology Present? Yes X No (includes capillary fringe) Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous inspections), if available: Remarks: depression with surface water at the time of survey,deeper water beyond ENG FORM 6116-9,JUL 2018 Western Mountains,Valleys,and Coast—Version 2.0 U.S. Army Corps of Engineers OMB Control#:0710A024,Exp:11/3012024 WETLAND DETERMINATION DATA SHEET—Western Mountains,Valleys,and Coast Region Requirement Control Symbol EXEMPT: See ERDC/EL TR-10-3; the proponent agency is CECW-CO-R (Authority:AR 335.15,paragraph 5.2a) Project/Site:TP#422055200005 City/County: Hoodsport/Mason Sampling Date: 1/23/25 Applicant/Owner: Santa Rita Builders LLC State: WA Sampling Point: TP-2 Investigator(s):Heidy Barnett, Craig Marbet Section,Township, Range: Sec 5 Twp 22 N Rge 04W Landform(hillside,terrace,etc.): hillslope Local relief(concave, convex,none): none Slope(%): 30 Subregion(LRR): LRR A, MLRA 2 Lat: 47.425251 Long: -123.21418 Datum: NAD 1983 Soil Map Unit Name: Hoodsport gravelly sandy loam 15 to 30% NWI classification: none Are climatic/hydrologic conditions on the site typical for this time of year? Yes x No (If no,explain in Remarks.) Are Vegetation ,Soil or Hydrology significantly disturbed? Are"Normal Circumstances"present? Yes x No Are Vegetation ,Soil or Hydrology naturally problematic? (If needed,explain any answers in Remarks.) SUMMARY OF FINDINGS—Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No x Is the Sampled Area Hydric Soil Present? Yes No x within a Wetland? Yes No x Wetland Hydrology Present? Yes No x Remarks: VEGETATION—Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: sample plant communny %Cover Species? Status Dominance Test worksheet: 1. Pseudotsuga menziesii 60 Yes FACU Number of Dominant Species That 2. Thuja plicata 40 Yes FAC Are OBL,FACW,or FAC: 2 (A) 3. Total Number of Dominant Species 4. Across All Strata: 5 (B) 100 =Total Cover Percent of Dominant Species That Sapling/Shrub Stratum (Plot size: .mwa.Mwmm m ) Are OBL,FACW,or FAC: 40.0% (A/B 1. Mahonia nervosa 15 Yes FACU 2. Gaultheria shallon 2 No FACU Prevalence Index worksheet: 3. Vaccinium ovatum 25 Yes FACU Total%Cover of: Multiply by: 4. Thuja plicata 15 Yes FAC OBL species 0 x 1 = 0 5. FACW species 0 x 2= 0 57 =Total Cover FAC species 55 x 3= 165 Herb Stratum (Plot size: sample plant community ) FACU species 104 x 4= 416 1. Polystichum munitum 2 No FACU UPL species 0 x 5= 0 2. Column Totals: 159 (A) 581 (B) 3. Prevalence Index =B/A= 3.65 4. 5. Hydrophytic Vegetation Indicators: 6. _1 -Rapid Test for Hydrophytic Vegetation 7. _2-Dominance Test is>50% 8. _3-Prevalence Index is s3.0' 9. 4-Morphological Adaptations'(Provide supporting 10. data in Remarks or on a separate sheet) 11. _5-Wetland Non-Vascular Plants' 2 =Total Cover —Problematic Hydrophytic Vegetation'(Explain) Woody Vine Stratum (Plot size: 'Indicators of hydric soil and wetland hydrology must 1. None be present, unless disturbed or problematic. 2. Hydrophytic =Total Cover Vegetation %Bare Ground in Herb Stratum 0 Present? Yes No x Remarks: ENG FORM 6116-9,JUL 2018 Western Mountains,Valleys, and Coast—Version 2.0 SOIL Sampling Point: TP-2 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color(moist) % Color(moist) % Type' LoC2 Texture Remarks 0-2 Duff 2-16 7.5YR 4/4 100 Loamy/Clayey sandy loam gravelly 'Type: C=Concentration,D=Depletion, RM=Reduced Matrix,CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils': _Histosol(Al) _Sandy Gleyed Matrix(S4) _2 cm Muck(A10)(LRR A, E) _Histic Epipedon(A2) —Sandy Redox(S5) _Iron-Manganese Masses(F12)(LRR D) _Black Histic(A3) _Stripped Matrix(S6) _Red Parent Material(F21) _Hydrogen Sulfide(A4) _Loamy Mucky Mineral(F1)(except MLRA 1) _Very Shallow Dark Surface(F22) _1 cm Muck(A9)(LRR D,G) —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) 3Indicators of hydrophytic vegetation and _Sandy Mucky Mineral(S1) _Depleted Dark Surface(F7) wetland hydrology must be present, 2.5 cm Mucky Peat or Peat(S2)(LRR G) Redox Depressions(F8) unless disturbed or problematic. Restrictive Layer(if observed): Type: Depth(inches): Hydric Soil Present? Yes No X Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary Indicators(minimum of one is required: check all that apply) Secondary Indicators(2 or more required) _Surface Water(Al) —Water-Stained Leaves(69)(except —Water-Stained Leaves(69)(MLRA 1,2 —High Water Table(A2) MLRA 1,2,4A,and 413) 4A,and 413) _Saturation(A3) _Salt Crust(611) _Drainage Patterns(610) _Water Marks(61) _Aquatic Invertebrates(1313) _Dry-Season Water Table(C2) —Sediment Deposits(62) —Hydrogen Sulfide Odor(Cl) _Saturation Visible on Aerial Imagery(C9) _Drift Deposits(133) _Oxidized Rhizospheres on Living Roots(C3) _Geomorphic Position(D2) _Algal Mat or Crust(64) —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(136) —Stunted or Stressed Plants(D1)(LRR A) _Raised Ant Mounds(D6)(LRR A) _Inundation Visible on Aerial Imagery(B7) _Other(Explain in Remarks) _Frost-Heave Hummocks(D7) Sparsely Vegetated Concave Surface(68) Field Observations: Surface Water Present? Yes No x Depth(inches): Water Table Present? Yes No x Depth(inches): Saturation Present? Yes No x Depth(inches): Wetland Hydrology Present? Yes No X (includes capillary fringe) Describe Recorded Data(stream gauge, monitoring well, aerial photos,previous inspections), if available: Remarks: water depth greater than 16 inches ENG FORM 6116-9,JUL 2018 Western Mountains,Valleys,and Coast—Version 2.0 Wetland name or number A RATING SUMMARY — Western Washington Name of wetland (or ID #): Wetland A Date of site visit: 1/23/25 Rated by Heidy Barnett, Craig Marbet Trained by Ecology?X Yes No Date of training June 201 HGM Class used for rating depressional Wetland has multiple HGM classes? Y X N NOTE: Form is not complete without the required figures (figures can be combined). Source of base aerial photo/map USDA\Imagery\WA NAIP 2021 OVERALL WETLAND CATEGORY (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 on three Category III -Total score = 16 - 19 ratings Category IV-Total score = 9 - 15 (order of ratings is not important) FUNCTION Improving Hydrologic Habitat 9 — H, H, H Water 8 = H, H, M Quality 7 = H, H, L Circle the appropriate ratings 7 - H, M, M Site Potential H M L H M L H M L 6 = H, M, L Landscape Potential H M L H M L H M L 6 = M, M, M Value H M L H M L H M L TOTAL 5 = H, L, L Score Based on 5 = M, M, L 9 6 7 22 4= M, L, L Ratings 3 = L, L, L 2. Category based on SPECIAL CHARACTERISTICS of wetland CHARACTERISTIC CATEGORY Estuarine I II Wetland of High Conservation Value I Bog I Mature Forest I Old Growth Forest I Coastal Lagoon I II Interdunal I II III IV None of the above N/A Wetland Rating System for Western WA: 2014 Update 1 Rating Form—Version 2,July 2023 Wetland name or number A Maps and figures required to answer questions correctly for Western Washington Degressional 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 Fig A Location of outlet(can be added to map of hydroperiods) D 1.1, D 4.1 Fig A Boundary of area within 150 ft of the wetland(can be added to another figure) D 2.2, D 5.2 Fiq B Map of the contributing basin D 4.3, D 5.3 Fig C 1 km Polygon:Area that extends 1 km from entire wetland edge-including H 2.1, H 2.2, H 2.3 Fig D polygons for accessible habitat and total habitat Screen capture of map of 303(d)listed waters in basin (from Ecology website) D 3.1, D 3.2 Fig E Screen capture of list of TMDLs for WRIA in which unit is found (from web) D 3.3 Fig F Riverine Wetlands Map of: To answer questions: Figure# Cowardin plant classes H 1.1, H 1.4 Hydroperiods H 1.2 Ponded depressions R 1.1 Boundary of area within 150 ft of the wetland(can be added to another figure) R 2.4 Plant cover of trees,shrubs,and herbaceous plants R 1.2, R 4.2 Width of unit vs.width of stream(can be added to another figure) R 4.1 Map of the contributing basin R 2.2, R 2.3, R 5.2 1 km Polygon:Area that extends 1 km from entire wetland edge-including H 2.1, H 2.2, H 2.3 polygons for accessible habitat and total habitat Screen capture of map of 303(d)listed waters in basin (from Ecology website) R 3.1 Screen capture of list of TMDLs for WRIA in which unit is found (from web) R 3.2, R 3.3 Lake Fringe Wetlands Map of: To answer questions: Figure# Cowardin plant classes L 1.1, L 4.1, H 1.1, H 1.4 Plant cover of trees,shrubs,and herbaceous plants L 1.2 Boundary of area within 150 ft of the wetland(can be added to another figure) L 2.2 1 km Polygon:Area that extends 1 km from entire wetland edge-including H 2.1, H 2.2, H 2.3 polygons for accessible habitat and total habitat Screen capture of map of 303(d)listed waters in basin (from Ecology website) L 3.1, L 3.2 Screen capture of list of TMDLs for WRIA in which unit is found (from web) L 3.3 Slope Wetlands Map of: To answer questions: Figure# Cowardin plant classes H 1.1, H 1.4 Hydroperiods H 1.2 Plant cover of dense trees,shrubs, and herbaceous plants S 1.3 Plant cover of dense,rigid trees,shrubs, and herbaceous plants S 4.1 (can be added to figure above) 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 H 2.1, H 2.2, H 2.3 polygons for accessible habitat and total habitat Screen capture of map of 303(d)listed waters in basin (from Ecology website) S 3.1,S 3.2 Screen capture of list of TMDLs for WRIA in which unit is found(from web) S 3.3 Wetland Rating System for Western WA: 2014 Update 2 Rating Form-Version 2,July 2023 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 If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe, it is an Estuarine wetland and is not scored. This method cannot be used to score functions for estuarine wetlands. 2. The entire wetland unit is flat, and precipitation is the only source (>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. NO—go to 3 YES—The wetland class is Flats If your wetland can be classified as a Flats wetland, use the form for Depressional wetlands. 3. Does the entire wetland unit meet all of the following criteria? The vegetated part of the wetland is on the shores of a body of permanent open water (without any plants on the surface at any time of the year) at least 20 ac (8 ha) in size, At least 30% of the open water area is deeper than 6.6 ft (2 m). NO—go to 4 YES—The wetland class is Lake Fringe (Lacustrine Fringe) 4. Does the entire wetland unit meet all of the following criteria? The wetland is on a slope (slope can be very gradual), The water flows through the wetland in one direction (unidirectional) and usually comes from seeps. It may flow subsurface, as sheet flow, or in a Swale without distinct banks, The water leaves the wetland without being impounded. NO—go to 5 YES—The wetland class is Slope NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually<3 ft diameter and less than 1 ft deep). Wetland Rating System for Western WA:2014 Update 3 Rating Form—Version 2,July 2023 Wetland name or number A 5. Does the entire wetland unit meet all of the following criteria? The unit is in a valley, or stream channel, where it gets inundated by overbank flooding from that stream or river, The overbank flooding occurs at least once every 2 years. NO—go to 6 YES—The wetland class is Riverine NOTE:The Riverine unit can contain depressions that are filled with water when the river is not flooding 6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at some time during the year?This means that any outlet, if present, is higher than the interior of the wetland. NO—go to 7 YES—The wetland class is Depressional 7. Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding? The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched but has no obvious natural outlet. NO—go to 8 YES—The wetland class is Depressional 8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a Depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within the wetland unit being scored. NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated. If the area of the HGM class listed in column 2 is less than 10%of the unit; classify the wetland using the class that represents more than 90% of the total area. HGM classes within the wetland unit HGM class to being rated use in rating Slope + Riverine Riverine Slope + Depressional Depressional Slope + Lake Fringe Lake Fringe Depressional + Riverine along stream Depressional within boundary of depression Depressional+ Lake Fringe Depressional Riverine + Lake Fringe Riverine Salt Water Tidal Fringe and any other Treat as class of freshwater wetland ESTUARINE If you are still unable to determine which of the above criteria apply to your wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Wetland Rating System for Western WA:2014 Update 4 Rating Form—Version 2,July 2023 Wetland name or number A DEPRESSIONAL AND FLATS WETLANDS Water Quality Functions - Indicators that the site functions to improve water quality D 1.0. Does the site have the potential to improve water quality? D 1.1.Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression(QUESTION 7 on key)with no surface water leaving it(no outlet). points=3 Wetland has an intermittently flowing stream or ditch,OR highly constricted permanently flowing outlet. 1 points=2 Wetland has an unconstricted,or slightly constricted,surface outlet that is permanently flowing points=1 Wetland is a flat depression(QUESTION 7 on key),whose outlet is a permanently flowing ditch. points=1 D 1.2.The soil 2 in. below the surface(or duff laver) is true clay or true organic(use NRCS definitions). Yes=4 No=0 4 D 1.3.Characteristics and distribution of persistent plants(Emergent,Scrub-shrub, and/or Forested Cowardin classes): Wetland has persistent,ungrazed plants>95%of area points=5 Wetland has persistent,ungrazed plants>%of area points=3 5 Wetland has persistent,ungrazed plants>_1/io of area points=1 Wetland has persistent,ungrazed plants<1/io of area points=0 D 1.4.Characteristics of seasonal pondinF,or inundation: This is the area that is ponded for at least 2 months.See description in manual. Area seasonally ponded is>%total area of wetland points=4 4 Area seasonally ponded is>_X total area of wetland points=2 Area seasonally ponded is<X total area of wetland points=0 _r Total for D 1 Add the points in the boxes above 14 Rating of Site Potential If score is: X 12-16=H _6-11 = M _0-5 = L Record the rating on the first page D 2.0. Does the landscape have the potential to support the water quality function of the site? D 2.1. Does the wetland unit receive stormwater discharges? Yes=1 No=0 1 D 2.2. Is>10%of the area within 150 ft of the wetland in land uses that generate pollutants? Yes=1 No=0 1 D 2.3.Are there septic systems within 250 ft of the wetland? Yes=1 No=0 1 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? 0 Source Yes=1 No=0 Total for D 2 Add the points in the boxes above 3 Rating of Landscape Potential If score is:X 3 or 4=H _1 or 2=M _0=L Record the rating on the first page D 3.0. Is the water quality improvement provided by the site valuable to society? D 3.1. Does the wetland discharge directly(i.e.,within 1 mi)to a stream, river, lake,or marine water that is on the 303(d)list? Yes= 1 No=0 0 D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d)list? Yes= 1 No=0 0 D 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality?(Answer YES if there is a TMDL in development or in effect for the basin in which the unit is found.) Yes=2 No=0 2 Total for D 3 Add the points in the boxes above 0 Rating of Value If score is: X2-4=H _1=M _0= L Record the rating on the first page Wetland Rating System for Western WA:2014 Update 5 Rating Form—Version 2,July 2023 Wetland name or number A DEPRESSIONAL AND FLATS WETLANDS Hydrologic Functions - Indicators that the site functions to reduce flooding and stream degradation D 4.0. Does the site have the potential to reduce flooding and erosion? D 4.1.Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression with no surface water leaving it(no outlet) points=4 Wetland has an intermittently flowing stream/ditch,OR highly constricted permanently flowing outlet points=2 0 Wetland is a flat depression (question 7 on key),whose outlet is a permanently flowing ditch points= 1 Wetland has an unconstricted,or slightly constricted,surface outlet that is permanently flowing points=0 D 4.2. Depth of storage during wet periods: Estimate the height of ponding above the bottom of the outlet. For wetlands with no outlet, measure from the surface of permanent water or if dry,the deepest part. Marks of ponding are 3 ft or more above the surface or bottom of outlet points=7 Marks of ponding between 2 ft to<3 ft from surface or bottom of outlet points=5 Marks are at least 0.5 ft to<2 ft from surface or bottom of outlet points=3 7 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 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 area of the wetland unit itself. The area of the basin is less than 10 times the area of the unit points=5 3 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 �10 Rating of Site Potential If score is:_12-16= H X 6-11= M _0-5= L Record the rating on the first page D 5.0. Does the landscape have the potential to support hydrologic functions of the site? D 5.1. Does the wetland receive stormwater discharges? Yes= 1 No=0 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 1 D 5.3. Is more than 25%of the contributing basin of the wetland covered with intensive human land uses(residential at 0 >1 residence/ac, urban, commercial,agriculture,etc.)? 14.9% 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 X 1 or 2= M 0=L Record the rating on the first page D 6.0. Are the hydrologic functions provided by the site valuable to society? D 6.1. Is the unit in a landscape that has flooding problems?Choose the description that best matches conditions around the wetland unit being rated. Do not add points.Choose the highest score if more than one condition is met. The wetland captures surface water that would otherwise flow downgradient 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 downgradient of unit. points=2 • Surface flooding problems are in a sub-basin farther downgradient. points=1 1 • Flooding from groundwater is an issue in the sub-basin. points=1 • The existing or potential outflow from the wetland is so constrained by human or natural conditions that the water stored by the wetland cannot reach areas that flood.Explain why points=0 • There are no problems with flooding downstream of the wetland. points=0 D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? 0 Yes=2 No=O Total for D 6 Add the points in the boxes above 1 Rating of Value If score is:_2-4= H X 1=M _0=L Record the rating on the first page Wetland Rating System for Western WA:2014 Update 6 Rating Form—Version 2,July 2023 Wetland name or number A These questions apply to wetlands of all HGM classes. HABITAT FUNCTIONS - Indicators that site functions to provide important habitat H 1.0. Does the site have the potential to provide habitat? H 1.1.Structure of plant community: Indicators are Cowardin classes and strata within the Forested class.Check the Cowardin plant classes in the wetland. Up to 10 patches may be combined for each class to meet the threshold of X ac if the unit is at least 2.5 ac,or more than 10%of the unit if it is smaller than 2.5 ac. X Aquatic bed 4 structures or more: points=4 X Emergent 3 structures:points=2 2 X Scrub-shrub(areas where shrubs have>30%cover) 2 structures:points= 1 Forested (areas where trees have>30%cover) 1 structure:points=0 If the unit has a Forested class, check if.• The Forested class has 3 out of 5 strata(canopy,sub-canopy,shrubs, herbaceous, moss/groundcover)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 if the unit is<2.5 ac, or X ac if the unit is at least 2.5 ac to count(see text for descriptions of hydroperiods). X Permanently flooded or inundated 4 or more types present: points=3 X Seasonally flooded or inundated 3 types present:points=2 Occasionally flooded or inundated 2 types present:points= 1 2 Saturated only 1 type present: points=0 X Permanently flowing stream or river in, or adjacent to,the wetland Intermittently or 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 ftz. 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,Canada thistle If you counted:>19 species points=2 5-19 species points=1 <5 species points=0 H 1.4. Interspersion of habitats Decide from the diagrams below whether interspersion among Cowardin plants classes(described in H 1.1), or the classes and unvegetated areas(can include open water or mudflats)is high, moderate, low,or none. If you have four or more plant classes or three classes and open water,the rating is always high. 0 (*) ( 2 None=0 points Low -1 point Moderate=2 points All three diagrams in this row l — .�s �+ ' are High=3 points Wetland Rating System for Western WA:2014 Update 13 Rating Form—Version 2,July 2023 Wetland name or number A H 1.5.Special habitat features: Check the habitat features that are present in the wetland.The number of checks is the number of points. X Large,downed,woody debris within the wetland (>4 in.diameter and 6 ft long). X Standing snags(dbh>4 in.)within the wetland Undercut banks are present for at least 6.6 ft(2 m)and/or overhanging plants extend at least 3.3 ft(1 m) over open water or 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 3 slope)OR signs of recent beaver activity are present(cut shrubs or trees that have not yet weathered where wood is exposed) X At least A ac of thin-stemmed persistent plants or woody branches are present in areas that are permanently or seasonally inundated(structures for egg-laying by amphibians) Invasive plants cover less than 25%of the wetland area in every stratum of plants(see H 1.1 above for the list of strata and H 1.5 in the manual for the list of aggressive plant species) Total for H 1 Add the points in the boxes above 10 Rating of Site Potential If score is:_15-18=H X 7-14=M _0-6=L Record the rating on the first page H 2.0. Does the landscape have the potential to support the habitat functions of the site? H 2.1.Accessible habitat(include only habitat polygons accessible from the wetland. Calculate:%relatively undisturbed habitat 0.4 [(%moderate and low intensity land uses)/2]0_9= 1.7 Total accessible habitat is: >1/3(33.3%)of 1 km Polygon points=3 0 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.Total habitat in 1 km Polygon around the wetland. Calculate:%relatively undisturbed habitat 35+§(%moderate and low intensity land uses)/2)16.9 52.7% Total habitat>50%of Polygon points=3 3 Total habitat 10-50%and in 1-3 patches points=2 Total habitat 10-50%and>3 patches points= 1 Total habitat< 10%of 1 km Polygon points=0 H 2.3. Land use intensity in 1 km Polygon: >50%of 1 km Polygon is high intensity land use points=(-2) 0 <_50%of 1 km Polygon is high intensity points=0 Total for H 2 Add the points in the boxes above 1=3 Rating of Landscape Potential If score is:_4-6=H X 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. to meets ANY of the following criteria: points=2 It has 3 or more Priority Habitats within 100 m(see next page) 2 X 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 data 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: X 2=H _1=M _0=L Record the rating on the first page Wetland Rating System for Western WA:2014 Update 14 Rating Form—Version 2,July 2023 Wetland name or number A WDFW Priority Habitats See complete descriptions of Priority Habitats listed by WDFW, and the counties in which they can be found, in: Washington Department of Fish and Wildlife. 2008 (current year, as revised). Priority Habitat and Species List.133 This list was updated for consistency with guidance from WDFW. This question is independent of the land use between the wetland unit and the Priority Habitat. All vegetated wetlands are by definition a Priority Habitat but are not included in this list because they are addressed by this rating system. Count how many of the following Priority Habitats are within 330 ft (100 m) of the wetland unit: — Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha). — Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species of native fish and wildlife. This habitat automatically counts if mapped on the PHS online map within 100m of the wetland. If not mapped, a determination can be made in the field. — 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. — Fresh Deepwater: Lands permanently flooded with freshwater, including environments where surface water is permanent and often deep, so that water, rather than air, is the principal medium within which the dominant organisms live. Substrate does not support emergent vegetation. Do not select if Instream habitat is also present, or if the entire Deepwater feature is included in the wetland unit being rated (such as a pond with a vegetated fringe). — Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. X 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. Do not select if Fresh Deepwater habitat is also present. — Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore, and Puget Sound Nearshore. — 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) diameter at breast height (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. iss http://wdfw.wa.gov/publications/00165/wdfw00165.pdf Wetland Rating System for Western WA:2014 Update 15 Rating Form—Version 2,July 2023 Wetland name or number A — Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important. For single oaks or oak stands <0.4 ha in urban areas, WDFW's Management Recommendations for Oregon White Oak134 provides more detail for determining if they are Priority Habitats X Riparian:The area adjacent to freshwater aquatic systems with flowing or standing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. 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. — Westside Prairies: Herbaceous, non-forested plant communities that can either take the form of a dry prairie or a wet prairie. isa https://wdfw.wa.gov/publications/00030/wdfw00030.pdf Wetland Rating System for Western WA:2014 update 16 Rating Form—Version 2,July 2023 Wetland name or number A CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Wetland Type Category Check off any criteria that apply to the wetland. Circle 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. 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? Cat. I 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? —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 Sportina,see chapter 4.8 in the Cat. manual. —At least Y4 of the landward edge of the wetland has a 100 ft buffer of shrub,forest,or un-grazed or un- mowed grassland. Cat. II —The wetland has at least two of the following features:tidal channels,depressions with open water,or contiguous freshwater wetlands. Yes=Category I No=Category II SC 2.0.Wetlands of High Conservation Value (WHCV) SC 2.1. Does the wetland overlap with any known or historical rare plant or rare&high-quality ecosystem polygons on the WNHP Data Explorer?135 Yes=Category I No—Go to SC 2.2 Cat. 1 SC 2.2. Does the wetland have a rare plant species, rare ecosystem(e.g., plant community),or high-quality common ecosystem that may qualify the site as a WHCV?Contact WNHP for resources to help determine the presence of these elements. Yes—Submit data to WA Natural Heritage Program for determination,136 Go to SC 2.3 No=Not a WHCV SC 2.3. Did WNHP review the site within 30 days and determine that it has a rare plant or ecosystem that meets their criteria? Yes=Category 1 No=Not a WHCV SC 3.0. Bogs Does the wetland(or any part of the unit) meet both the criteria for soils and vegetation in bogs?Use the key below. If you answer YES,you will still need to rate the wetland based on its functions. SC 3.1. Does an area within the wetland unit have organic soil horizons,either peats or mucks,that compose 16 in. or more of the first 32 in.of the soil profile? Yes—Go to SC 3.3 No—Go to SC 3.2 SC 3.2. Does an area within the wetland unit have organic soils,either peats or mucks,that are less than 16 in.deep over bedrock,or an impermeable hardpan such as clay or volcanic ash,or that are floating on top of a lake or pond? Yes—Go to SC 3.3 No=Not a bog SC 3.3. Does an area with peats or mucks have more than 70%cover of mosses at ground level,AND at least a 30% cover of plant species listed in Table 4? Yes=Category I bog No— Go to SC 3.4 NOTE: If you are uncertain about the extent of mosses in the understory,you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16 in.deep. If the pH is less than 5.0 and the plant species in Table 4 are present,the wetland is a bog. Cat. SC 3.4. Is an area with peats or mucks forested(>30%cover)with Sitka spruce,subalpine fir,western red cedar, western hemlock, lodgepole pine,quaking aspen, Engelmann spruce, or western white pine,AND any of the species(or combination of species)listed in Table 4 provide more than 30%of the cover under the canopy? Yes=Category I bog No=Not a bog 13'https://www.dnr.wa.gov/NHPdata 136 https://www.dnr.wa.gov/Publications/amp_nh_sighting_form.pdf Wetland Rating System for Western WA:2014 Update 17 Rating form—Version 2,July 2023 Wetland name or number A SC 4.0. Forested Wetlands Does the wetland have at least 1 contiguous acre of forest that meets one of these criteria for the WA 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). Yes= Category I No=Not a forested wetland for this section Cat. I SC 5.0. Wetlands in Coastal Lagoons Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? —The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks,gravel banks,shingle,or, less frequently, rocks —The lagoon in which the wetland is located contains ponded water that is saline or brackish (>0.5 ppt) during most of the year in at least a portion of the lagoon(needs to be measured near the bottom) —The lagoon retains some of its surface water at low tide during spring tides Yes—Go to SC 5.1 No=Not a wetland in a coastal lagoon Cat. I SC 5.1. Does the wetland meet all of the following three conditions? —The wetland is relatively undisturbed(has no diking,ditching,filling, cultivation,grazing),and has less than 20%cover of aggressive,opportunistic plant species(see list of species in H 1.5 in the manual). —At least Y.of the landward edge of the wetland has a 100 ft buffer of shrub,forest,or un-grazed or un- Cat. 11 mowed grassland. —The wetland is larger than 1/io ac(4350 ftz) Yes=Category I No=Category II SC 6.0. Interdunal Wetlands Is the wetland west of the 1889 line(also called the Western Boundary of Upland Ownership or WBUO)? If you answer YES,you will still need to rate the wetland based on its habitat functions. In practical terms that means the following geographic areas: — Long Beach Peninsula: Lands west of SR 103 — Grayland-Westport: Lands west of SR 105 Cat I — Ocean Shores-Copalis: Lands west of SR 115 and SR 109 and Ocean Shores Blvd SW, including lands west of E.Oceans Shores Blvd SW. Yes—Go to SC 6.1 No=Not an interdunal wetland for rating Cat. II SC 6.1. Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form (rates H,H,H or H,H,M for the three aspects of function)? Yes=Category I No—Go to SC 6.2 SC 6.2. Is the wetland 1 ac or larger,or is it in a mosaic of wetlands that is 1 ac or larger? Cat. III Yes=Category Il No—Go to SC 6.3 SC 6.3. Is the unit between 0.1 and 1 ac,or is it in a mosaic of wetlands that is between 0.1 and 1 ac? Yes=Category III No=Category IV Cat. IV Category of wetland based on Special Characteristics N/A If you answered No for all types,enter"Not Applicable"on Summary Form Wetland Rating System for Western WA:2014 Update 18 Rating Form—Version 2,July 2023 Figure A. Cowardian class, hydroperiod and outlet for Wetland A. z_. stream(outlet) - - ---- -- - `` Seasona/1 Aer�an -�nuy A0, " A' 90 Standstill Drive North Legend TP: 422055200005 st%"3111 [Cowardian Class, hydroperiod CowardianClass and outlet for Wetland A] AQ PEM =1 PSSC 0 110 220 440 US Feet I I I I I I I Figure B. 150 feet around the wetland rating unit. blim _ � roa"f0 aar� anti � ` ®� `+�..o�r.�m r r+ 90 Standstill Drive North Legend 21.2% pollutants within 150 feet of Wetland A TP: 422055200005 — Stream rating unit. [150 feet around Wetland A RatingUnit rating unit and pollutants] 150'around pollutants wetland 0 150 300 600 US Feet I 1 I I I 1 1 I �r rn � o � , Figure D. 1km land use around Wetland A. � I � H 2.1 Accessible of Total(1.7%) 90 Standstill Drive North Legend Relatively ow/Moderatelstur(1/Z)=0.9% TP: 422055200005 LandUse H 2.2 Land Use(51.7%) 0 High Relatively Undisturbed=33.5% 1km Land Use around unit Low/Moderate Use(1/2)=18.2% Low High Use=30.1% Map Created Jan 23,2025 Map Datum:NAD1983 HARN Low-access Coordinate System:WA State Plane,South Zone Map Scale:1:600 Mod-access lt Moderate 0 437.5 875 1,750 Feet �WEST FORK L I I 1 I I I I ENVIRONMENTAL January 17,2025 z! aq 303d listed waters Assessed Water/Sediment Water J j %0 Category 5-303d Ln r+ iCategory 4C rD osCategory 48 Category 4A Category 2 03 1+ 40 Category 1 (D Sediment Category 5- 303d cr Category 4C cu Category 4B tit, Category 4A Category 2 CM Category 1 Subbasins(12 digit RUCs) f HUC boundary L ............. 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