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Home My WebLink AboutMLA18-00038 No Net Loss Report and Habitat Management PlanLee Robinson Habitat Management Plan and No Net Loss Report Parcel 960300020 51 Oak Road Port Hadlock, WA 98339 Prepared for: Lee Robinson 51 Oak Road Port Hadlock, WA 98339 April 2018 9 2018 JEFFERSON COUNTY DCIS Olympic Wetland Resources, LLC 85+6 50th Street Part Townsend, Washington 98368 360 385-6432 dixie@cablespeed.com —t -.11 Lft I b UL) �8 Lee Robinson Habitat Management Plan and No Net Loss Report Parcel 960300020 51 Oak Road Port Hadlock, WA 98339 April 2018 Contents Proposal Summary Existing Conditions Description of Site Priority Habitat Species (PHS) Habitat Management Plan No Net Loss Goals and Objectives Mitigation Area Methodology Revegetation Landscape Specifications Installation and Maintenance Monitoring AS BUILT PLAN Monitoring Determining Survival Rates Performance Standards Contingency Plan Jefferson County Bond Guarantee Summary Limitations Figures Figure 1 Site Plan (studio STL), Mitigation Plan Figure 2 Location, Aerial, Contour, and PHS Figure 3 Photographs of Site References Lee Robinson Habitat Management Plan and No Net Loss Report Parcel 960300020 51 Oak Road Port Hadlock, WA April 2018 Proposal Summary Olympic Wetland Resources, LLC was authorized by Simon Little studio STL to prepare a Habitat Management Plan and No Net Loss Report for the proposed second story construction project. The proposed 584 sqft second story addition will be built directly above the existing home (main floor 787 sqft). There will be no increased impervious surface or impacts to the shoreline or waters of Oak Bay. In accordance with policy outlined in the Shoreline Master Program (SMP) a shoreline vaee permit will be submitted for this non -conforming lot per JCC 18.25.270 Critical areas, shoreline buffers, and ecological protection (5)(a)(b). This project requires this No Net Loss report since it qualifies as Expansion and Enlargement 18.25.660 as defined below: (9)(a)(i) Enlargement or expansion of nonconforming single-family residences by the addition of space to the exterior of the main structure or normal appurtenances where the total footprint will increase by more than 25 percent or the expansion/enlargement occurs vertically, laterally or landward, but not waterward, of the structure. This Habitat Management Plan (HMP) includes vegetation community analysis, list of Priority Habitat Species (PHS) near the parcel, and a mitigation plan. All impacts will be mitigated and there will be No Net Loss of ecological function or adverse effects of the shoreline or waters of Oak Bay. Existing Conditions This rectangular parcel (-62' X —187 to 214') is entirely developed and includes a garage, driveway, and an established home with decks. The vegetation consists of mowed lawn and several trees and shrubs. The parcel slopes gently to the to the northeast to the top of bluff with a drop of the 2 to 3 feet to the shore of Oak Bay. There is a short ramp that accesses the beach. The construction of the second story will be Gutsi&-_ofthe W setback from the OHWM of Oak Bay as required by Jefferson County Department of Community Development (DCD). The remainder of the development is within the jurisdiction of the Washington Department of Fish and Wildlife designated shoreline buffers. These buffers extend landward from the OHWM 150 feet (Fish and Wildlife Habitat Conservation Areas, Jefferson County Code, Critical Areas, FWHC, Table 18.22.270, Buffers for Other FWHCA, Locally Important Habitat Areas). Lee Robinson Habitat Management Plan and No Net Loss Report Report File #2018-0423 1 April 2018 Description of Site • Legal Description: Parcel 960320020 • Section: 7 Township 29N Range IE, North of Oak Bay Road • Location: 51 Oak Road, Port Hadlock WA 98339 • Zoning: RR -5, WRIA 17 SubBasin Oak Bay/Mats Mats • Soils: HuC Hoypus gravelly loamy sand, 0 to 15% The Appendix includes Figure 1 Site and Mitigation Plan, Figure 2 Location, Aerial, Contours, and PHS. Figure 3 includes Photographs of the site (4/23/2018). Listed below are all the Priority Habitat Species within 1/3 of a mile of the subject parcel as listed by WDFW on the internet. There will be no impact to any species or habitats during or after this construction project. Priority Habitat Species List Common Name Scientific Name Coho O. kisutch Crab Cancer ma ister -Dungeness Estuarine & Marine Deepwater Freshwater, Estuary and Marine Wetlands Geoduck Pano a generosa Pacific Sand Lance Ammodytes hexa terus Resident Coastal Cutthroat O. clarkii Subtidal Hardshell Clam Mercenaria mercenaria Waterfowl Concentrations Wetlands Habitat Management Plan Since there is no ground disturbance this mitigation plan will only be for airspace of the second story addition which is calculated at 584 sqft. No Net Loss Goals and Objectives The goals and objectives for this project include: • to mitigate for the second story addition (584 sqft) • to re -vegetate an area with 2 native trees and 15 native shrubs and 10 fernsl; • to remove ivy (an invasive species) from the bank along Oak Bay(>100sgft); Mitigation Area The mitigation areas have been chosen to enhance shoreline ecology. Revegetation locations are indicated in the Mitigation Plan (Figure 1) and are primarily along the shoreline. Actual landscape design will be determined by the property owner when final construction is complete. Additional or alternative native species with similar square foot coverage can be substituted. 1 Trees are calculated at 100 Lee Robinson Report File #2018-0423 cover, shrubs at 25 sqft cover and ferns at 10 sqft cover. Habitat Management Plan and No Net Loss Report 2 April 2018 Methodology Mitigation requirements have been prepared to meet the standards described in the Department of Ecology, Guidance on Wetland Mitigation in the State of Washington State (March 2006 #06-06-11A) and in accordance with prescribed requirements outlined by Jefferson County Unified Development Code, Critical Areas, Article IX 18.22.270 (FWHA). Revegetation Appropriate native trees and shrubs have been chosen according to the surrounding conditions and tolerance to shoreline conditions. Over time planted species will function as additional habitat layers for wildlife. The location of all species can be determined by Lee Robinson to blend with and enhance existing landscape plans. Shore pines can be pruned so they will not block views. Landscape Specifications Scientific Name Common Name Size Spacing Quantity sgft Mahonia a uifolium Shiny Oregon grape 1 gal 6 to 8' 4 100 Oemleria cerasiformis Indian plum 1 gal 5' 4 100 Pinus contorta Shore pine 1 gal 8' 2 200 Polystichum munitum Sword fern 1 gal 4' 10 100 Rhododendron macrophyllum Pacific rhododendron 1 gal 6 to 8' 3 75 Ribes sanquineum Red -flowering currant 1 gal 4 to 5' 4 100 675 Fourth Corner Nurseries, 3057 E. Bakerview Road Bellingham WA (360) 734-0079 Sound Native Plants, P.O. Box 7505, Olympia, WA 98507 (360) 943-7026 Woodbrook Nursery, 1620 59th Ave. Gig Harbor WA 98335 (206) 265-6271 Installation and Maintenance All plant material should come from healthy plants grown in containers as specified; 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 non-native species. It is recommended to install new plants in the fall so roots can become established during the winter. Nursery specimens should be planted in dense groupings. In general, trees should be planted 8 to 10 feet apart and shrubs 3 to 5 feet 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 feet 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 are used on newly planted trees and shrubs. With this added protection mortality is reduced during weeding and deer grazing. Irrigation may be required for the success of planted species through the dry summer months. If the planted species appear to be stressed in the summer months they must be irrigated. Trees and shrubs require a minimum of 1 inch of water per week or 2 inches every two weeks from July through Lee Robinson Habitat Management Plan and No Net Loss Report Report File #2018-0423 3 April 2018 September. Irrigation systems are expensive and hand watering could be done to ensure that the new trees and shrubs get enough water until they are established. Monitoring AS BUILT PLAN As required by HMP, an AS BUILT PLAN will be submitted to Jefferson County after the second story of the single-family residence has been built and the revegetation project is complete. The report will include the final location of tree and shrub species, and Photopoint locations with photographs. After the report is submitted, the site will be inspected by the wetland specialist of Jefferson County Department of Community Development. Monitoring Ongoing annual monitoring will be conducted for 5 years. All years will require a report submitted to Jefferson County Department of Community Development except for Year 4. This monitoring will occur during the growing season in late June or early July and will contain a general description of the site and condition of the planted areas. Counts will be made of all species that need to be replaced and the location of undesirable weed infestations will be recorded. Sample Monito ing and Maintenance Schedule Determining Survival Rates Monitoring should include plant survivorship, species density, and general condition of planted species. This information will determine whether plant survivorship and percent cover provided are sufficient to meet the performance standards Performance Standards Monitoring will determine whether the performance standards identified in this HMP 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 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, shrub, and herbaceous species is expected to be 80% from year 2 through year 5. Species will be replanted until the monitoring period is complete. Lee Robinson Habitat Management Plan and No Net Loss Report Report File #2018-0423 4 April 2018 AS BUILT PLAN Year 1 Year 2 Year 3 Year 4 Year 5 Maintenance Planting Maintenance Irrigation Replace plants as needed Monitoring Vegetation and Habitat Photopoint Annual Report Determining Survival Rates Monitoring should include plant survivorship, species density, and general condition of planted species. This information will determine whether plant survivorship and percent cover provided are sufficient to meet the performance standards Performance Standards Monitoring will determine whether the performance standards identified in this HMP 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 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, shrub, and herbaceous species is expected to be 80% from year 2 through year 5. Species will be replanted until the monitoring period is complete. Lee Robinson Habitat Management Plan and No Net Loss Report Report File #2018-0423 4 April 2018 • This HMP 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 Scots' broom, English Ivy, and Himalayan blackberry. Contingency Plans 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 mitigation 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; • increased maintenance, which may include additional watering and/or weeding; • additional protection to established buffers to compensate for the length of completion of mitigation if the density goals are not being met. Jefferson County Bond Guarantee A bond will not be required for this project as per conversation with Emma Bolin, Associate Planner DCD (4/20/2018). Summary The proposed 584 sqft second story addition will have no additional impact on the shoreline of Oak Bay. There will be NO NET LOSS of ecological functions or impacts to the PHS once this mitigation is complete. This mitigation is required by Jefferson County DCD to meet the standards outlined in the SMP for a shoreline variance (18.25.270 and 18.25.600) Included in this mitigation is the removal of over 100 sqft of ivy along the shoreline of Oak Bay even though it is rooted off the parcel (conversation with Emma Bolin, Associate Planner DCD) and to install over 584 sqft of native plants on the subject parcel. Annual monitoring will be required to ensure ongoing success of this shoreline mitigation. Limitations The final authority over this HMP and No Net Loss Report will be Jefferson County Department of Community Development. Jurisdictional authority over shorelines rests with the local, state and federal agencies. All information in this report should be reviewed by the appropriate regulatory agencies prior to approval. If there are further questions or planning requirements, please do not hesitate to call. Respect subm'tted, Dixie Llewellin dixie@cablespeed.com Principal Biologist, Olympic Wetland Resources, LLC Certified for Wetland Delineation, WTI Certified for Wetland Rating and Soil Analysis DOE, 2007, 2012, 2014 Lee Robinson Habitat Management Plan and No Net Loss Report Report File #2018-0423 5 April 2018 Title: Site and Mitigation Plan Olympic Wetland Resources, LLC Lee Robinson 856 50th Street 51 Oak Road YPort Hadlock, WA 98330 1 Port Townsend, WA 98368 ,�.60 385-6432 Client: Lee Robinson dixie@cablespeed.com 51 Oak Road { Port Hadlock, WA 98330 Base Map by studio STL`I APPROX, LOG J ' OF OWN TOP OF BANK r �otrf„ (EJ WATER ADJACENT LAND SHUTOFF f G USS 9INGlP FAMILY 10SEP'r1G � RESIDFNTIAL RISERS / f APPROX UX- OF (FJ ry Q� f I`I -, +111 I i 10' BLDG serBACK If ED LOG. OP M F 1 –T. a L 62. Parcel 960300020 s ab•m ff TNN DRAIN y DAYLIGHT M) V1OOD DECK f f ;X: �/Ti EXCAT10N N1 Ito „f / (EJ PERVIOUS j" J WALK°TYP, ! ITx, GURTAH DRAIN fL'i CURTAIN DRAM FOLLOWS EASEME PERReTIA ADJAG@1T LAND — _ USE: SINGLE FAMILY REBIPMMAL (FJ GRAVEL DRN HAY. TO' LONG �6 ^� O A K R D R.'D" C'. ` Scientific Name Common Name Size Suacine Onantitvisaft Mahonia a uifolium Shiny Oregon grape 1 gal 6 to 8' 4 100 Oemleria cerasiformis Indian pluin 1 gal 5' 4 100 Pinus contorta Shore pine 1 1 8' 2 200 Pol stichum munitum Sword fern 1 1 4' 10 100 Rhododendron macro hyllum Pacific rhododendron 1 gal, 6 to 8' 3 75 Ribes sanuineun I Red- flowering currant I 1 gall 4 to 5' 4 1100 675 Scale: Figure As Indicated Date: April 2018 I Job 4:2018-0423 #1 50' 100' Plant Recommended Species (-584 sgft) Described in HMP, No Net Loss Report House and Septic Drainfield Garage Driveway Oak Road Oak Bay CvuukYui3 w lv nitvivaiz5 Title: Location, Aerial, Contour, and PHS Scale: Figure Olympic Wetland Resources, LLC Lee Robinson As Indicated 856 50th Street 51 Oak Road �ort PHadlock, WA 98330 Date: Port Townsend, WA 98368 April 2018 #2 360 385-6432 Client: Lee Robinson dixie@acablespeed.corn 51 Oak Road Job 0: 2018-0423 Port Hadlock, WA 98330 Parcel 960300020 Areas in Purple Contain Priority Habitat Species http://apps.wdfw.wa.gov/phsonthe web/ Title: Photographs Scale: Figure -Olympic Wetland Resources, LLC Lee Robinson As Indicated 51 Oak Road �4 856 50th Street Port Hadlock, WA 98330 Date: Port Townsend, WA 98368 — April 2018 #3 360 385-6432 Client: Lee Robinson dixie@cablespeed.com 51 Oak Road } Port Hadlock, WA 98330 Job 4: 2018-0423 Parcel 960300020 Garage (foreground) and Home to Have Second Story Mowed Lawn Along Shoreline Shoreline of Oak Bay Invasive ivy (off parcel) to be controlled References 2018 Buckingham, et al., 1995. Flora of the Olympic Peninsula. Northwest Interpretive Association and the Washington Native Plant Society, Seattle, Wash. Cooke, Sarah Spear, 1997. A Field Guide to the Common Wetland Plants of Western Washington and Northwest Oregon. Seattle Audubon Society, Seattle, Wash. Cowardin, L.M.V. Carter, F.C.Goblet, and E.T. LaRoe, 1979. Classification of Wetland and Deep Water Habitats of the U.S. U. S. Fish and Wildlife Service, Washington, D.C. Hitchcock and Cronquist, 1973 2017 update. Flora of the Pacific Northwest. Jefferson County Unified Development Code. March 2008. MacBeth, Div. of Kollmorgen Instruments Corp., 1992. Munsell Soil Color Charts. Pojar, Mackinnon, 1994. Plants of the Pacific Northwest Coast. Reed, Porter, 1988. National List of Plant Species That Occur in Wetlands, Region 9 WMVC. Updated 2017. Washington State Department of Ecology, April 2004. Guidance on Wetland Mitigation in Washington State. Washington State Department of Ecology, March 1997. Washington State Wetland Identification and Delineation Manual, #96-94. Washington State Department of Ecology, August 2004. Washington State Wetland Rating System for Western Washington, Revised #04-06-025. Washington State Department of Ecology, October 2016. Determining OHWM for Shoreline Management Act Compliance in Washington State (Pub 16-06-029). U.S. Corps of Engineers, 1987. Federal Manual for Identifying and Delineating Jurisdictional Wetlands. U.S. Corps of Engineers, 2010. Regional Supplement to the Corps Engineer Wetland Delineating Manual: Western Mountains, Valleys, and Coast Region (Version 2.0 and as updated). U.S. Department of Agriculture, Soil Conservation Service, 1975. Soil Survey of Jefferson County. Web sites: Fish and Wildlife Service, NWI, http:llwetiandsfws.er.usgs.gov/wtinds/launch.html National Resource Conservation Service, httpJlwebsoilsurvey.nres.usda.ggy/appf