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HomeMy WebLinkAbout09B- WETLAND REPORT McIlwain OWR LLC Wetland Delineation and HMP February 2022 revised June 2022 Report File 2022-0110 Lisa and Thomas McIlwain Wetland Delineation and Habitat Management Plan February 2022 Revised June 2022 Table of Contents Introduction Project Proposal Site Description and Existing Conditions Methodology Background Information Wetland Delineation Findings Soils Vegetation Hydrology Categorization and Buffers Habitat Management Plan and Critical Areas Review Habitat and Species Assessment Watershed and Hydrologic Assessment Potential Impact of Proposed Development Mitigation Goals and Objectives Landscape Specifications Installation and Maintenance Monitoring Schedule Performance Standards Contingency Plan Jefferson County Bond Guarantee Summary Limitations References McIlwain OWR LLC Wetland Delineation and HMP February 2022 revised June 2022 Report File 2022-0110 Appendix Figure 1 Location, Soils, Contour and Critical Area Map (Jefferson County), Figure 2 Findings and Buffers Figure 3 Site Plan and Areas of Impact Figure 4 Mitigation and Landscape Plan Figure 5 Photographs Figure 6 Priority Habitat Species, 1 KM Polygon for Rating Form Applied Methodology for Wetland Delineation 2019/2020 updates Wetland Rating Field Data Form Data Forms, Routine Determination, WA Wetland Rating System (DOE) McIlwain OWR LLC Wetland Delineation and HMP February 2022 revised June 2022 Report File 2022-0110 Lisa and Thomas McIlwain Wetland Delineation and Habitat Management Plan Parcel 802 261 002 February 2022 Revised June 2022 Introduction Olympic Wetland Resources, LLC has been authorized by Lisa McIlwain to perform a Wetland Delineation and Categorization on the parcel at 47 Munn Road, Quilcene WA. The parcel is sited along the shoreline of Lake Leland. Field work was conducted on January 20, 2022, to determine the wetland boundaries associated with Critical Areas that include shoreline, wetlands, and a stream as indicated on the Jefferson County Critical Areas map (internet). Due to the mapped wetlands associated with Lake Leland and a DNR stream crossing this parcel on the southwest corner of the parcel a Wetland Delineation and HMP are required by Jefferson County Environmental Health and DCD as part of the permit application process. Project Proposal The focus of this critical area assessment is to define stream and wetland buffer restrictions that would apply to the proposed addition to an existing 1050 sqft home and deck permitted in 1997 (BLD1997- 00214). The total area of new additions designed by Richard Berg, Terrapin Architecture is 887 sqft which includes lateral extensions to house (409 sqft) and a new deck (478 sqft). The carport addition will be placed on an existing driveway and will have no additional impervious surface. There will be no additional bedrooms added to the house; the only new addition will be a powder room. There will be no change to the sheds or the existing ADU upslope from the home. Site Description and Existing Conditions The 2.60-acre rectangular parcel (approximately 165’ X 626”) slopes towards shoreline of Lake Leland from the west (Munn Road) to the east at a 25% slope. The elevation drops from 285 feet in elevation to 200’ at the shoreline. The homesite and shed are located on level terraces approximately 85feet landward from Lake Leland. They are divided by a channeled stream that has a rock edge and native shrubs planted on the side slopes. The steep driveway down to the homesite and shed passes through a mature forest with a dense understory of native vegetation. The ADU is near the middle of the parcel and off a driveway to the south. The main driveway continues downslope and crosses the stream via a bridge. The stream flows through a 24-inch culvert and eventually empties into Lake Leland via the neighboring parcel. According to the Jefferson Area Critical Maps the DNR indicates a stream crossing the adjacent property (orange) that is a is Type 4 or Type “Np” non-fish bearing perennial stream. The location on this map is incorrect: it is mapped on the Terrapin site plan and crosses the lower 1/3 of the parcel below the ADU. It was flowing during the January 20th site visit and is reported to flow year-round by Tom McIlwain. This stream has 75-foot buffers (Table 18.22.270(1)) Stream Buffers Jefferson County Critical Areas. McIlwain OWR LLC Wetland Delineation and HMP February 2022 revised June 2022 Report File 2022-0110 The location of the wetland indicated on the Jefferson Area Critical Maps is also incorrect. It is indicated as a large wetland that extends from Lake Leland to behind the house. Field findings indicate the wetland edge is adjacent to the lake by examining soils, hydrology, and topography. • Legal Description: Parcel 802261002, Section 26 Township 28N Range 2W • Soils: AlC/AlD Alderwood sandy gravely loam, Bh Belfast silt loam, Wa Wapatito silt clay • Location: 47 Munn Road Quilcene, Washington 98376 S26 T28N R2W • Slopes 0 to 30%, 2.60 acres, elevations 285’ to 200’ Munn Road to Lake Leland • Lat -122.88, Long 47.9 At the end of this report are the following: Figure 1 Location, Soils, Contours, and Critical Area Map (Jefferson County), Figure 2 Findings and Buffers Figure 3 Site Plan and Areas of Impact Figure 4 Mitigation and Landscape Plan Figure 5 Photographs and Priority Habitat Species Figure 6 1 KM Polygon for Rating Form Methodology This delineation is prepared according to the current Unified Development Code, Chapter 18.22, Critical Areas (18.22.270, 18.22.330, 18.22.440 and 18.22.960). The characteristics of an area that result in its classification as “wetland” have been formally defined by federal and state agencies. All wetland delineations must be prepared in accordance with the U.S. Army Corps of Engineers Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region, Version 2.0 (May 2010 with updates.) Complete Methodology used for this delineation and HMP are included at the end of this report. Background Information The following resources were consulted prior to field work for this project: • Jefferson County UDC Chapter 18 Critical Areas (18.22. Article VII Wetlands and Mitigation and 18.25 Shoreline Master Program (December 2019) • WD FW Priority Habitat Species (PHS) https://geodataservices.wdfw.wa.gov/hp/phs/ • Aerial Photographs (Google Internet) • Soil Survey (https://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm) • Washington State Wetland Identification and Delineation Manual (1997) • National List of Plant Species That Occur in Wetlands: Northwest (Region 9) (2019 name update) • Wetland Mitigation in Washington State, Developing Mitigation Plans, Part 1 and 2 (Version 1, 2006) Ecology Publication #006-06-0011b or as amended. • 303 (d) list from ecology (link included in Methodology) https://apps.ecology.wa.gov/waterqualityatlas/wqa/map?CustomMap=y&BBox=-13683219,6087429,- 13672957,6090852&Opacity=0.9&Basemap=esriTopo&AP=legend&Layers=27,30&RT=1 Wetland Delineation Findings This delineation was conducted during the winter and most vegetation was dormant. All data points were within areas that consist of mowed lawn. The edge of the property was landscaped with native and non- native shrubs. The wetland edge was determined by examining soils, vegetation layers, and hydrology at each data point. The wetland boundary is defined by a lowland topography adjacent to Lake Leland. McIlwain OWR LLC Wetland Delineation and HMP February 2022 revised June 2022 Report File 2022-0110 Air temperature was 45 degrees and soil temperatures were 38 degrees 16 inches below the surface within the data points. The wetland edge was defined by soil colors with redoximorphic feature, hydrology, and nearby vegetation that was not lawn. There also was a slight rise in elevation from the lakeshore wetland at the upland data points. Findings reveal that the wetland only extends 10 feet landward from Lake Leland. The main indicator of the wetland edge was hydrology, redoximorphic features dominant in the soil, and topography. Vegetation was sparce and consisted of mowed lawn. The only point that qualified at wetland was Data Point 2, 10 feet landward from the lake edge. The other two Data Points, 1 and 3 are upslope 35 feet and 100 feet respectively. No hydrology was found in either upland pit even during the winter following several rain periods. In general, the wetland did not appear to extend away from the shoreline more than 10 feet landward. Summary of findings include both the stream and wetland location as indicated on the Jefferson County maps are incorrect. The Jefferson County Critical Areas map indicates the wetland extends landward 85’ and includes the existing residence (Figure 1). The house and all proposed additions are upslope in elevation and well out of the wetland boundary. The stream will have a 75’ buffer measured from the edge of the rock retaining wall. The Findings map indicates all buffers; shoreline 100’, stream 75’, and 225’ wetland edge buffer (Figure 2). Analysis for all data points are included in the Appendix and include DOE Wetland Rating Summary (Category II) and Wetland Determination data forms, Western Mountains, Valleys and Coast Region. Soils NRCS Soil Survey (internet) lists all soils on the subject parcel as: AlC/AlD Alderwood sandy gravely loam, Bh Belfast silt loam, Wa Wapatito silt clay. Both Bh Belfast silt loam and Wa Wapatito are classified as hydric soils. The Soil matrix color in Data Point 1 (DP 1) was dark brown (10YR 3/1) with no redoximorphic features. Below 7” soils were greyish brown and sandy (10YR 3/1) with large redoximorphic features in a sandy loamy rocky soil (10YR 4/4). The soil pit had no water at the bottom of the pit or soil saturation. This soil test pit was 35 feet back and slightly upland from the edge of Lake Leland and was in mowed lawn. Data Point 2 (DP 2) was 10 feet landward from the lake edge and consisted of loamy clay saturated soils. The soil matrix color was dark (Munsell 10YR 3/1) to 8 inches; below this layer the soils in the pit were heavy sticky clay soils (10YR 3/1) with a dominance of redoximorphic features (10YR 5/4). This soil test pit is within the wetland and immediately filled with water to within 10 inches of the surface. Ponding, surface saturation, and near surface water table were present. The soil test pit was within the lawn, however hydric vegetation along the lake edge 10 feet away included reed canary grass, spirea, common rush, and cattail. Data Point 3 (DP 3) was behind the house and adjacent to the shed 85 from the lake and below the stream. This soil test pit was upslope in elevation on a higher terrace and soils were significantly different in color. Soils in this test pit were dry and brown (10YR 3/4). Soils below 6 inches were rocky and gravelly (10YR 4/4). All soils were dry and no redoximorphic indicators were observed. Vegetation This wetland delineation was conducted during the middle of winter when most pasture grasses were still dormant, and shrubs were without leaves. Herbaceous vegetation was identified by last year’s growth or McIlwain OWR LLC Wetland Delineation and HMP February 2022 revised June 2022 Report File 2022-0110 growth structure. Trees and shrubs were identified by familiarity of branching, bud formation, and residual leaves on the ground. The only non-native species identified on site were reed canarygrass, Himalayan blackberry, and holly in the upper forest. There have been previous restoration plantings in 2017 by Ben Alexander, Sound Native Plant along the stream and shoreline (western hemlock, osoberry, red-osier dogwood, ninebark, and Sitka willow). The dominant vegetation and percent cover are recorded on the Data Forms at the end of this report. Below is the list of vegetation identified during the January assessment and include the assigned indicator status of each species. McIlwain Plant List January 20, 2022 Scientific Name Common name Status Layer Acer macrophyllum Big-leaf maple FACU Tree Alnus rubra Alder FAC Tree Cornus sericea Redosier dogwood FACW Shrub Gaultheria shallon Salal FACU Shrub Juncus effusus Soft rush FACW Rush Phalaris arundinacea Canarygrass FACW Grass Physocarpus capitatus Pacific ninebark FACW Shrub Pseudotsuga menziesii Douglas' fir FACU Tree Pteridium aqulinum Bracken fern FACU Fern Rosa nutkana Nootka rose FAC Shrub Rubus bifrons (R. discolor) Himalayan blackberry FAC Shrub Rubus ursinus Trailing blackberry FACU Shrub Spiraea douglasii Hardhack FACW Shrub Thuja plicata Western red cedar FAC Tree Typha latifolia Cattail OBL Herb FACU Facultative Upland Species/ Non wetland FAC Facultative Species FACW Facultative Wetland Species OBL Obligate Wetland Species NI No Indicator Assigned National Wetland Plant List 2019 COE Western Mountains, Valleys, and Coast Hydrology Hydrology was only present at DP 2 occurring within 10” of the surface indicating a shallow water table near Lake Leland. Ponding and soil saturation were near this test pit but did not seem to extend upslope. Both DP 1 and 3 are upslope from the shoreline of Lake Leland contained no hydrology within the soil test pits even during the winter months and following several recent rain periods. Categorization and Buffers The large wetland associated with Lake Leland is shown on the Jefferson County Critical Areas Maps to extend off site and to the north and south and to the end of Lake Leland. A wetland is rated as an entire unit. Since this mapped wetland extends offsite and the adjacent land is private property, complete onsite McIlwain OWR LLC Wetland Delineation and HMP February 2022 revised June 2022 Report File 2022-0110 analysis is not possible. The category of a wetland is defined by edge development and forested areas as shown on the 1 KM aerial map (Figure 6). From available data this wetland unit rates as a Category II wetland with 225-foot buffers (moderate impact land use rating). This wetland unit received 21 points based the following: Improving Water Quality (8 points), Hydrologic Function (5 points), and Habitat (8 points) for a total of 21 points. Wetlands with a rating of 21 points and 8 points for Habitat qualify as a Category II Wetland and have associated 225-foot buffers as highlighted in the table below. Buffers are measured perpendicular from the delineated edge. The proposed septic system/reserve and single-family residence are on a parcel larger than one acre and are defined as “moderate impact land use.” All development within wetland or stream buffers. The Wetland Rating Form is included in the Appendix at the end of this report. Table 18.22.330(2) WETLAND CATEGORIES, RATING SCORES AND BUFFER WIDTHS FOR MODERATE LAND USES McIlwain OWR LLC Wetland Delineation and HMP February 2022 revised June 2022 Report File 2022-0110 Habitat Management Plan Critical Area Review Habitat and Species Assessment Washington Department of Fish and Wildlife Priority Habitat and Species were evaluated within 1/3 of a mile of this parcel. All threatened or endangered plant or animal species were recorded and if possible surveyed during the January 2022 assessment. Many species of birds and wildlife have been documented to use this high quality habitat. Watershed and Hydrologic Assessment This parcel drains toward Lake Leland via a perennial stream that flows to Leland Valley and eventually into the Little Quilcene River. The location of the steam mapped on Jefferson County Critical Areas Map is incorrect. Instead of crossing the upper corner of the parcel, it is a major feature dividing the ADU from the shed and residence. It then drains under the driveway to the house through a 24” culvert. Water then flows across the neighbor’s parcel and into Lake Leland. The stream is rated by DNR as Type 4 and is a “Np” non-fish stream as defined by Washington Fish and Wildlife Habitat Conservation Areas (FWHCA). Buffers established for this stream are 75 feet on either side. Potential Impacts of Proposed Development All development will be within the wetland or stream buffer. The proposal does not include additional bedrooms; the only the addition will be a powder room. The majority of the proposed additions are landward of the lake. No trees or shrubs will be removed, all construction is within areas of lawn or existing driveways and parking area. There will be no change in final contours and stormwater from impervious surfaces will be directed away from the lake as per stormwater regulations. A detailed stormwater plan will be prepared by Terrapin. In summary stormwater will be routed to a catch basin and through a bioswale over 100 feet from Lake Leland. There will be no direct or indirect impacts to any habitat or ecological shoreline function due to this project. All buffers will be addressed though the mitigation plan and once the project is complete there be a “No Net Loss” of function to this wetland, stream, or shoreline. McIlwain OWR LLC Wetland Delineation and HMP February 2022 revised June 2022 Report File 2022-0110 Short-term impacts during the addition and development will be minimized by careful construction practices. No soils will be excavated during this project. Best Management Practices (BMPs) should be followed during and after construction. There will be no alteration of surface water flows since the site is terraced and well drained in proposed development sites adjacent to the house. Mitigation Goals and Objectives Goals for this revegetation project are a “No Net Loss” of ecological functions or degradation to any critical areas. Over time, habitat will be enhanced by increasing plant species diversity and structural layers. Principal areas for planting will be in areas of mowed lawn between the existing home and lake and shoreline. A greater than a 1:1 ratio will be mitigated. The new construction with impervious surface is calculated at 887 sqft; over 2,500 sqft will be mitigated. The carport addition will not create any impervious surface and is not included in this calculation. The lawn will be replaced with native trees, shrubs, and herbaceous species according to water tolerance. Invasive species identified on site will be removed. Bird nesting boxes could be voluntarily installed. Mitigation requirements have been prepared to meet the standards described in the DOE, Guidance on Wetland Mitigation in Washington State (2006 with updates). Through this mitigation, the degraded buffer will be re-established. Species have been chosen that should adapt easily to site and hydrologic conditions. They may require watering and weeding for the first 3 to 5 years to survive. Plants should be planted in natural groupings near the stream, and shoreline and within the lawn surrounding the house as appropriate. The goals and objectives include: • No Net Loss of shoreline, stream, or wetland buffer functions; • Increase diversity in the tree, shrub, and herbaceous layers with a total of 184 native species (substitute species can be used according to availability); • Mitigate buffer impacts with greater than a 1:1 replacement ratio (2510 sq ft for 887 sq ft building impacts; • Removal of non-native species (minimal presence of Himalayan blackberry, reedcanary grass, and holly in upper forest area); • Guarantee the success of the project through the maintenance and irrigation of planted species from 3 to 5 years until established; • Document compliance with the Mitigation Plan with an AS BUILT report after final construction and revegetation is complete; • Annual monitoring of plantings for 3 to 5 years to assure Performance Standards are met and; • Follow Best Management Practices (UDC 18.22.590) during and after construction. Landscape Specifications McIlwain 2022 Scientific Name Common Name Size Space Number Type Sq ft Acer circinatum Vine maple 1gal 8'oc 5 Shrub 100 Acer glabrum Douglas maple 1gal 10'oc 3 Tree 300 Alnus virdis Sitka alder 1gal 10'oc 3 shrub 60 Asarum caudatum Ginger 1gal group 10 Shrub 30 Carex comosa Bristly sedge 10" plug group 20 Herb 30 Carex ampifolia Big-leaf sedge 1 gal group 20 Herb 30 Ceanothus sanguineus Red-stemmed cenothus 10" plug 4'oc 5 Shrub 100 McIlwain OWR LLC Wetland Delineation and HMP February 2022 revised June 2022 Report File 2022-0110 Cornus sericea Redosier dogwood 1gal 4'oc 5 Shrub 100 Corylus cornuta Hazelnut 1gal 4'oc 6 Shrub 120 Frageria chiloensis Coastal strawberry 10" plug group 20 Shrub 20 Lonicera involucrata Black twinberry 1gal 4'oc 5 Shrub 100 Morella californica Pacific wax-myrtle 1gal 10'oc 10 Shrub 200 Physocarpus capitatus Pacific ninebark 2gal 4'oc 8 Shrub 160 Picea sitchensis Sitka spruce 1gal 10'oc 3 Tree 300 Pinus contorta Shore pine 1gal 10'oc 5 Tree 500 Ribes sanquineum Red currant 1gal 4'oc 6 Shrub 120 Rubus spectabilis Salmonberry 1gal 4'oc 10 Shrub 200 Schoenoplectus acutus Hardstem clubrush 10" plug group 20 Herb 20 Scirpus microcarpus Small-fruited bulrush 10" plug group 20 Herb 20 Total plant species 184 2510 Legend Scientific and common names: According to Hitchcock and Cronquist (2019) Flora PNW Size: As typically planted for restoration projects. Spacing: 10'oc (on center) to 4' to groups. Number: Total number of plants for project. Sq ft: Area of coverage Vegetation planting density is calculated at 20 sq ft per shrub and 100 sq ft per tree Substitutes can be made according to availability Installation and Maintenance Sound Native Plants has the following recommendation for restoration techniques. They will supply the native vegetation and implement the planting for this project. Ben Alexander, Sound Native Plants has been in the restoration business for over 35 years. All plant material should come from healthy plants grown in containers as specified or as available; healthy bare root trees can also be used. It is desirable to obtain plants that are adapted to this region and propagated in local nurseries. The use of appropriate native species ensures that ongoing maintenance is minimized once the plants are established. All new plantings must become established to successfully out-compete aggressive non-native species. It is recommended to install new plants in the fall so roots can become established during the winter. If planted in the summer they will require additional irrigation. Nursery specimens should be planted in dense groupings. In general, trees should be planted 8’ to 10’ apart and shrubs 3’ to 5’ apart. Native plant design encourages grouping of species in clusters to mimic the natural surroundings, rather than in rows or grids. Installing mulch circles (bark, wood chips, compost) to 3” deep and a minimum of 3’ in diameter around each tree and shrub is recommended. Mulch circles help woody specimens become established by preserving moisture and reducing competition for nutrients from grasses. Success rates of a restoration project are greatly improved when commercial tree protectors or fencing are used on newly planted trees and shrubs. With this added protection, mortality is reduced during weeding and deer browsing. Prior to any planting, the upper soil may need to be tilled and if necessary, topsoil should be added to the surface to a depth of at least 6 inches. Exact location of trees and shrubs within the landscape can be determined by Lisa and Thomas McIlwain so no views are obstructed or proposed paths Lake Leland and boat docks are not blocked. Planted species should be maintained for 3 to 5 years to insure survival. Other appropriate native species can be added or substituted. McIlwain OWR LLC Wetland Delineation and HMP February 2022 revised June 2022 Report File 2022-0110 Irrigation of newly planted trees and shrubs is critical during our dry summer months, especially in dry forest buffers. Trees and shrubs require a minimum of 1 inch of water per week or 2 inches every two weeks from July through September. Monitoring Schedule Annual monitoring will determine plant survivorship, species density, and general condition of planted species. This information will determine whether plant survivorship and percent aerial cover of vegetation are sufficient to meet the performance standards. All monitoring will be conducted by the property owner or a professional biologist and will determine replacement ratios. Performance Standards Monitoring will determine whether the performance standards identified in this HMP and Mitigation Plan are met. The proposed length of time for mitigation compliance is five years. This time period will allow for the planted and volunteer species to become established. Enhancement will be considered successful if the wetland and buffer plantings meet the following criteria: • Survivorship of installed tree and shrub species is expected to be 100% after the first growing season. All plants that do not survive the first year should be replanted. • Survivorship of installed tree and shrub species is expected to be 80% from year 2 through year 5. Species will be replanted until the monitoring period is complete. • This buffer mitigation is considered successful if 80% or greater of desirable cover is achieved and the plants are healthy and vigorous during the fifth year of monitoring. Desirable species also include volunteer native trees and shrubs. • No more than 10% invasive species should be present at any time during the monitoring process. Non-desirable species include Scot’s broom, Himalayan blackberry, and holly. Contingency Plan The purpose of the contingency plan is to evaluate available alternatives if monitoring indicates that the project goal and objectives have not been achieved. Contingency plans will vary, depending upon which goals have not been met, and will apply to each specific revegetation area and activity. Appropriate corrective action will be recommended after the first year of the monitoring process and will include the following: • Replanting of any dead vegetation in the first year and additional replanting if density goals are not met over the following four years; • Annual weeding of both reedcanary grass and Himalayan blackberry; • Increased maintenance, which may include additional watering and/or weeding; • Additional years of mitigation and/or monitoring may be required if the performance standards are not met. Jefferson County Bond Guarantee To guarantee the success of mitigation projects, a financial bond may be required by Jefferson County DCD for the duration of the project. This would guarantee the success of the project through the five years of monitoring. The Bond requirement is under the discretion of the critical areas review staff; they will prepare a Critical Areas Bond Quantity Worksheet if required. McIlwain OWR LLC Wetland Delineation and HMP February 2022 revised June 2022 Report File 2022-0110 Summary The focus of this report is to define the shoreline, wetland, and stream buffers that would be impacted by the proposed development at 47 Munn Road, Quilcene, Washington. The wetland delineation and stream assessment determine exact location of these critical area as they are mis-mapped on the Jefferson County Critical Areas maps (internet). The Habitat Management Plan defines existing critical areas to be protected and mitigation goals. The main goal is to protect and maintain functions and values of this high- quality shoreline, wetland, and stream. All critical area extend off-site to the north and south on neighboring parcels along Lake Leland. The area proposed for development is directly adjacent to the existing homesite and will have a small footprint. When complete there will be no alteration of elevations or vegetation removal except lawn. The carport will be located above an existing driveway. The proposed site plan for the additions is prepared by Richard Berg, Terrapin Architecture. The mitigation will be implemented by Sound Native Plants, Olympia Washington. A goal is “No Net Loss” of existing environmental conditions. This will be achieved through the mitigation project and Best Management Practices during building and after the project is complete. The new addition to the single-family residence is calculated at 887 sq ft, (additions to home 409 sqft and 546 sqft for the deck). Total buffer impacts will be mitigated at a greater replacement ratio of 1:1 as required by DCD. This mitigation will include the removal of any invasive species (Himalayan blackberry, canaryreed grass, and holly) and planting of over 2500 sq ft of native trees, shrubs, and herbaceous species. The final placement of native trees and shrubs will be determined by habitat and water tolerance once construction is complete. Success of the project will require maintenance and irrigation during the summer months. An AS BUILT report will be submitted following the completion of the construction and revegetation project. Annual monitoring reports will be submitted to the Jefferson County DCD. Limitations The final approval of this Wetland Delineation, Habitat Management Plan fall within the authority of Jefferson County Department of Community Development. Jurisdictional authority over shorelines, streams, and wetlands also rests with the local, state, and federal agencies. If there are further questions or planning requirements, please do not hesitate to call. Respectfully submitted, Dixie Llewellin Principal Biologist, Olympic Wetland Resources, LLC Certified for Wetland Delineation, WTI, 1994 Certified for Wetland Rating and Soil Analysis DOE, 2010, 2014. Hitchcock vegetation update 2018