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Home My WebLink AboutHMP - HMP Habitat Managment Plan - 9/30/2016 The Wetland Corpse Wetland Delineation • Habitat Management Plans • Riparian Restoration • Mitigation • Biological Evaluation PARCEL 12229-22-00280 HABITAT MANAGEMENT PLAN 17719 RECEIVEDEast Highway 3 Allyn, Wa 98524 SEP 2 7 2016 615 W- Alder Street Prepared for: Ryann Sharer PO Box 754 Allyn,Wa 98524 Prepared by: Heather Lane and Lee Boad September 2016 PO Box 2854, Belfair,WA 98528 cell:36o-62o-o618,Office:360-372-2421 e-mail:wetlandcorps@hotmaii.com The kletland Corps Wetland Delineation - Habitat Management Plans • Riparian Restoration • Mitigation • Biological Evaluation PARCEL 12229-22-00280 HABITAT MANAGEMENT PLAN TABLE OF CONTENTS 1.0 PROJECT DESCRIPTION...................................................................................................1 2.0 PROPERTY DESCRIPTION ...............................................................................................2 3.0 APPLICABLE SETBACKS..................................................................................................3 4.0 DESCRIPTION OF HABITAT AND SPECIES.................................................................3 5.0 ANALYSIS OF EFFECTS ....................................................................................................4 6.0 BUFFER ENHANCEMENT.................................................................................................6 7.0 MONITORING.......................................................................................................................8 8.0 SUMMARY.............................................................................................................................8 Figures Figure 1. Site Vicinity Map Figure 2. Site Plan Figure 3. National Wetland Inventory Map Figure 4. Mason County Soil Survey Map Figure 5. Department of Natural Resources Water Resource Map PO Box 2854, Belfair,WA 98528 cell:36o-62o-o618,Office:360-372-2421 e-mail:wetiandcorps@hotmail.com The Wetland Corps Wetland Delineation • Habitat Management Plans - Riparian Restoration • Mitigation • Biological Evaluation September,2016 Page 1 PARCEL 12229-22-00280 HABITAT MANAGEMENT PLAN Allyn,Washington 1.0 PROJECT DESCRIPTION The details of a Habitat Management Plan for the proposed stream buffer reduction which will allow for the construction of a 1768 square foot SFR near a type F stream are addressed in this report. The property is located at 17719 East Highway 3, in Allyn, Mason County, Washington. The property is found in the northwest 1/4 of Section 29 Township 22 North, Range 1 West (See Figure 1. Site Vicinity Map). The parcel occupies .7 acres, and contains a 1472 square foot SFR currently located approximately 90-feet from the stream, at the nearest point. The stream is located east of the property boundary, and parallels the eastern property line. Type F streams in Mason County require a buffer of 150-feet with an additional 15-foot building , setback; this buffer occupies nearly the entire property with the exception of th westernmost p S edge. This proposal will require the buffer of a type F stream be reduced to feet at the narrowest point to allow for the construction of a 1768 square foot SFR. This ui ding will be 1Zf��t� located further from the stream than the existing building to be removed. This is the farthest distance from the stream that is feasible given access requirements and configuration of the property. The majority of the stream buffer within the parcel includes the mobile home, outbuildings and open lawn. Mitigation includes enhancing and restoring the proposed buffer by removing the existing SFR and planting the buffer with shrub and overstory plantings. From a habitat standpoint, this project meets the Mason County Resource Ordinance (MCRO) criteria for a buffer reduction due to the following circumstances: 1) The proposed construction will be further from the stream than the existing house to be removed. 2) The existing use of the property is single-family residential. 3) The mitigation proposed will result in higher quality riparian habitat conditions than what currently exist. The objectives of this HUT are as follows: ■ To evaluate the potential adverse effects to critical area functions as well as fish and wildlife habitat resulting from the proposed project. Emphasis is placed on the possible loss of habitat for any listed species found to be residing in the vicinity of the parcel. ■ To identify appropriate mitigation measures that could be implemented to improve the function and value of the proposed type F stream buffer, congruent with the project proposal. PO Box 2854, Belfair,WA 98528 cell:36o-62o-o618,Office:360-372-2421 e-mail:wetlandcorps@hotmail.com Parcel 12229-22-00280 HMP September 2016 Page 2 2.0 PROPERTY DESCRIPTION The parcel is accessed off of State Route 3 in Allyn. It is bordered to the north and south east and west by residential parcels of varying size and shape. The type F stream,known as Sherwood Creek, meanders just beyond the eastern property boundary. According to WAC 16.222.031,the stream contains fishbearing habitat because the average width of the channel is greater than 2- feet, and the stream is located along a gradient of less than 16 percent. The stream is also mapped as a fishbearing stream by the DNR Water Resources Map (See Figure 5. WA DNR Water Resource Map). The stream drains westerly to eventually enter into Case Inlet. r"._ 17o s � �.r s p h Photo 1.Subject property according to Mason County GIS. The property is occupied by relatively flat landscape, containing little native vegetation as it is mostly maintained as lawn area. 2.01 Review of Existing Information Preliminary information was gathered on the project site prior to the field review. General information sources included: 1974 United States Fish and Wildlife Service (USFWS) National Wetland Inventory (NWI) maps (See Figure 3. NWI Map), the Soil Survey of Mason County PO Box 2854, Belf air,WA 98528 cell:36o-62o-o618,Office:360-372-2421 e-mail:wetiandcorps@hotmaii.com Parcel 12229-22-00280 HMT September 2016 Page 3 Area, Washington (USDA, 1951) (See Figure 4. Mason County Soil Survey Map), and Mason County's critical areas regulations. 3.0 APPLICABLE SETBACKS The parcel is within the jurisdiction of Mason County. Ordinance 17.01.010 identifies Fish and Wildlife Habitat Conservation Areas adopted by Mason County. The applicable setback for this project is as follows: Habitat Type Buffer Building Setback from Buffer Type F Stream 150' 15' 4.0 DESCRIPTION OF HABITAT AND SPECIES 4.1 Puget Sound Chinook(Oncorhynchus tshawytsha)-Threatened Listed as threatened since March 24, 1999 adult Puget Sound Chinook spawn in several rivers and streams flowing into Puget Sound. Suitable habitat may be present within this stream although there is no managed chinook stock documented.No impacts to Puget Sound Chinook or associated habitat are predicted with the proposed project. No impacts to aquatic habitat are expected to occur with the proposed project. No impacts to water quality are predicted with proposed mitigation. 4.2 Bull Trout(Salvelinus malma)-Threatened Bull trout typically inhabit very cold, clear headwater streams at high elevations that are supported by snowmelt. For spawning and early rearing, bull trout require loose, clear gravel, relatively free of fine sediments. No bull trout have been documented within the type F stream. No impacts to bull trout are expected to result from this project. 4.3 Puget Sound Steelhead (Oncorhynchus mykiss)-Threatened Listed as Threatened since May 2007, Puget Sound Stealhead spawn in several streams throughout Puget Sound. Spawning usually occurs in moderate to steep gradient sections of streams, usually in heads of riffles or the tails of pools where hydraulic conditions are conducive to intragravel flow. Side channels and the anterior portions of islands are also used. Spawn timing for summer steelhead runs typically ranges from mid May through October while winter run steelhead are present from December through May. Adequate cover from predation, water temperature, and spawning gravel are important factors for instream habitat, while little is currently known about specific marine habitat requirements. The stream does support suitable steelhead habitat. The recommendations provided in this report are intended to protect water quality and enhance the riparian corridor, improving the overall health of the stream and wildlife utilization of the site. The proposed project will not adversely impact the type F stream, and should result in better conditions than what currently exist within PO Box 2854, Belfair,WA 98528 cell:36o-620-0618,Office:360-372-2421 e-mail:wetlandcorps@hotmaii.com Parcel 12229-22-00280 HMP September 2016 Page 4 the riparian corridor. No impacts to Puget Sound Steelhead are predicted to result from this project. 4.4 Marbled Murrelet(Brachyramphus marmoratus)-Threatened Marbled Murrelets are typically associated with coastal habitats and nest in old-growth forests. Murrelets may fly as far as 50 miles inland to nest, however the average distance is roughly 5- miles from nest to sea. It is only during the summer breeding months that they are commonly found inland. During non-nesting seasons they live at sea. Murrelets require tall mossy trees in coniferous old growth forests with cavities on thick branches where they can construct a cup nest 20-40 meters above the forest floor. Murreletts have been documented laying eggs on rocky ground habitats only when a sufficient forest is unavailable. There are no documented nesting sites surrounding the project site. No potential nesting trees are within the project area. This project will have no adverse impact on Marbled Murrelet given there are no documented nesting sites or potential nesting trees in the vicinity of the project area. 4.5 Northern Spotted Owl(Stria occidentalis caurina)-Threatened Spotted owls require a large amount of land for their nesting and hunting grounds; pairs may occupy up to 58 sq. km. They are territorial and do not migrate, but they may shift their ranges slightly in response to seasonal changes Suitable spotted owl habitat includes trees relatively large in diameter, multi-layered forest canopy with a moderate to high canopy closure in overstory,midstory, and understory, large,tall, live trees with cavities, broken tops, mistletoe, or platforms of branches capable of holding accumulated organic matter suitable for use as a nest. Dead standing trees and fallen decayed trees supporting abundant populations of prey species are critical to spotted owl populations. Currently there are no spotted owl nesting sites documented in proximity to the project site. As spotted owls are currently not present, and the project does not require the removal of any forested components, no impacts to spotted owl or their habitat are expected result from the proposed project. Proposed mitigation is expected to result in a net benefit of vegetative abundance and diversity within the proposed stream buffer,which could eventually be utilized by Northern Spotted Owl. 5.0 ANALYSIS OF EFFECTS The project entails reducing the type F stream buffer to 125 feet. This is the furthest distance from the stream buffer that development can occur given the constraints of the property. The majority of the stream buffer within the proposed project area is devoid of native riparian vegetation as it has been maintained as a flat lawn area. The proposed mitigation entails restoring and enhancing the proposed stream buffer to a higher quality habitat condition than what currently exists onsite. PO Box 2854,Belfair,WA 98528 cell:36o-62o-o618,Office:360-372-2421 e-mail:wetlandcorps@hotmaii.com Parcel 12229-22-00280 H?dP September 2016 Page 5 5.1 Vegetation Disturbance This project does not require removal of any native trees within the stream buffer. The recommended planting of native vegetation described in Section 6.1 and 6.2 will result in a net increase of vegetation abundance and diversity within the site. 5.2 Designated Critical Habitat for Salmonids According to NOAA Fisheries Northwest Region Critical Habitat Designations for West Coast Salmon and Steelhead in Washington - August 2005, Designated Critical Habitat for Salmonids is within the vicinity of the parcel. None of the proposed actions are likely to destroy or adversely modify designated critical habitat. Actions described in this plan are not expected to jeopardize the continued existence of any listed species. 5.3 Noise Pollution A slight increase in noise from construction activities is likely to occur during daylight construction hours. No nesting sites are located within the radii of concern that would be impacted by noise associated with the proposed project. 5.4 Temporary Increase in Sediment and Turbidity during Construction The proposed work has the potential to temporarily increase turbidity and suspended sediment within the project area. Best Management Practices have been recommended in Section 6.3 to minimize the adverse effects to sediment supply and turbidity during project implementation. 5.5 Light and Glare Given the existing use of the property, the proposed project is not likely result in an increase in light and glare. PO Box 2854, Belfair,WA 98528 cell:36o-62o-o618,Office:360-372-2421 e-mail:wetlandcorps@hotmail.com Parcel 12229-22-00280 HW , September 2016 Page 6 6.0 BUFFER ENHANCEMENT This project entails reducing the required 150-foot stream buffer to accommodate the proposed construction. The existing home and all debris associated with the structure will be removed and taken off site. Following the building removal, a 2000 square foot area of stream buffer currently occupied by lawn area will be planted with native trees and shrubs. This area will be identified as the Mitigation Area shown in Figure 2. The stream buffer will then be monitored for presence of invasive species, and the success or failure of the new vegetation. These recommendations are more specifically addressed in the sections that follow. 6.1 Planting Restoration Zone It is recommended that the Restoration Zone be planted with both trees and shrubs to provide a diverse, multi-layer vegetative community within the stream buffer. The restoration of a moderately dense forest and shrub community within this portion of the stream buffer is intended to improve wildlife utilization and riparian function of the site as well as establish a vegetative screen between the proposed development and stream. The following is a list of suggested species to be used for replanting within the Restoration Zone. The species have been chosen based on their presence within surrounding undisturbed forested areas,tolerance to moist conditions, and light requirements. It is recommended that potted plants be used as opposed to bare root seedlings. Comments associated with each species from the Species Selection Guide from the Sound Native Plants website (www.soundnativeplants.com) are provided. Trees Douglas Fir(Pseudotsuga menziesii)2-gallon Fast growing Big Leaf Maple(Acer macrophyllum)2-gallon Fast growing,versatile Cascara(Rhamnus purshiana) 2-gallon Versatile Western red cedar(Thuja plicata)2-gallon Shade tolerant Shrubs Pacific ninebark(Physocarpus capitatus) 1-gallon Versatile Snowberry(Symphoricarpos albus) 1-gallon Very versatile Thimbleberry(Rubus parvijlorus) 1-gallon Versatile Vine maple(Acer circinatum) 1-gallon Slower growing, a survivor Ocean spray(Holodiscus discolor) 1-gallon Versatile PO Box 2854, Belfair,WA 98528 cell:36o-62o-o618,Office:360-372-2421 e-mail:wetiandcorps@hotmaii.com Parcel 12229-22-00280 1HAP September 2016 Page 7 6.2 Native Planting Guidelines It is recommended that plantings be installed within the identified Mitigation Area to achieve the following densities. A minimum of 1 tree species and five shrub species from the above list are recommended. trees- 10' on center shrubs- 5' on center These densities will provide a moderately dense, structurally diverse plant community within the mitigation zone. It is recommended that installation be done as single trees and or clusters of three shrubs, on approximate 10-foot centers. The planting will alternate between 5 trees + 3 shrub clusters or 4 trees + 4 shrub clusters throughout the mitigation zone. Any volunteer or existing native vegetation can be counted towards target densities. To fulfill the above mentioned planting density recommendation, the Restoration Zone will be planted with 20 trees and 60 shrubs. Typically, planting should occur during winter dormancy. The optimum time for planting is during February and March, however, the need to complete the project in a timely manner may call for planting to occur outside optimum time periods. No machinery earthwork will be necessary to implement this portion of the enhancement plan; planting holes for specified vegetation installation will be hand dug. No additional clearing or grading should be necessary for site enhancement. All installed vegetation shall be marked with colored flagging to facilitate monitoring inspections. The monitoring program is outlined in Section 7.0 to insure project effectiveness. 6.3 Best Management Practices Recommended Best Management Practices for this project are as follows: • Perform excavation and site preparation work during dry weather. • Install silt fencing between the work area and the stream to prevent erosion and siltation of waters(See diagram below). • Minimize amount of erodible soils at any given time to the maximum extent feasible. • Check all equipment daily for leaks. Refueling and lubrication of equipment should occur off site. Do not store any fuel,lubricants,chemicals,or hazardous substances outside overnight within the project area. • Do not apply any chemicals when there is a possibility of rain. • Comply with all permits and requirements of governing authority. PO Box 2854, Belfair,WA 98528 cell:36o-62o-o618,Office:360-372-2421 e-mail:wetlandcorps@hotmail.com Parcel 12229-22-00280 TRAP September 2016 Page 8 4'HIGH CONSTRUCTION STEEL POST FENCE K rf LO OTT 10 Fr MAX SPACING WITH WIRE SUPPORT FENCE 6 FT MAX SPACING WITHOUT WIRE SUPPORT FENCE FILTER FABRIC PONDING HT. /FILTER FSpgEggRIC STEEL POST / 0 UPSTREAARELY !!! SIDE OF POST. RUNOFF T _ 2" MIN. 4"x6"TRENCH WITH COMPACTED BACKFlLL Recommended Silt Fencing 7.0 MONITORING Monitoring of the site will begin the first fall following project implementation and maintained on a seasonal basis. The information gathered will provide the following: 1) condition of plant species within the stream buffer; 2) the use of the site by wildlife species; 3) any disturbance caused by the project and its effect on the protected zone and associated aquatic habitat; 4) any occurrence of exotic species within the restoration zone; 5) any corrective measures that may be deemed necessary to provide desired conditions. This monitoring will be in effect for the duration of five years. The information gathered will be provided in an annual report and submitted to the Director of Mason County Department of Community Development. 8.0 SUMMARY This report proposes a stream buffer reduction to allow for the construction of an SFR occupying 1716 square feet,proposed 125-feet from the type F stream. The existing building to be removed is located 90-feet from the stream. The stream meets criteria for a Type F stream requiring a 150-foot buffer with additional 15-foot building setback. This buffer encompasses nearly the entire parcel. Mitigation entails removing the existing SFR and restoring the proposed stream buffer to improve the function, value, and overall functional width of the riparian corridor, while allowing development within a portion of the MCRO required 150-foot stream buffer. PO Box 2854, Belfair,WA 98528 cell:36o-62o-o618,Office:360-372-2421 e-mail:wetlandcorps@hotmail.com Parcel 12229-22-00280 HMP September 2016 Page 9 Enhancement/restoration recommendations within the proposed stream buffer entails removing the existing house and planting native trees and shrubs within a designated Mitigation Area, which will occupy 2000 square feet. See Figure 2. Site Map for the approximate location of the Mitigation Area. Best Management Practices have been identified to avoid, minimize, and mitigate for impacts associated with the proposed project. No impacts to water quality or stream habitat are predicted. We trust this information is sufficient for your needs at this time. Thank you for choosing The Wetland Corps as our environmental consultant. If you have an questions feel free to call. iP Y Y Y Respectfully submitted, Lee Boad Senior Ecologist /)4,k&4� Heather Lane Staff Wetland&Natural Resource Specialist PO Box 2854,Belf air,WA 98528 cell:36o-62o-o618,Office:360-372-2421 e-mail:wetlandcorps@hotmail.com REFERENCES Audobon WatchList. http;Haudobon2.org/webapp/watchlist/viewSpecies. Knutson, K.L., and V.L.Nae£ 1997. Management recommendations for Washington's priority habitats: riparian. Washington Department of Fish and Wildlife, Olympia. 181 pp. Native Plants for Kitsap County. ftp://kcMpub3.co.kitsgp.wa.us/pw/sw/Native Policy of Washington Department of Fish and Wildlife and Western Washington Treaty Tribes Concerning Wild Salmonids. Adopted by Washington Fish and Wildlife Commission,1997. Washington State Department of Ecology; William Symington Lake Habitat Analysis. 1998. PO Box 2854,Belfair,WA 98528 cell:36o-62o-o618,Office:360-372-2421 e-mail:wetlandcorps@hotmaii.com z IE r y�r o Or !!,! CO cv' :71 Lake Anderson Y r, J � Lji l E3 ,�.A. )An nt?E'! DI Approximate Site Location Rd a, a y °4 Catfish 1:18,056 c> Lake '� C,ills 3 Content may not reflect Rational Geograph.ic's current reap R FIGURE 1. SITE VICINITY MAP Project: Parcel 12229-22-00280 HMP THE WETLAND CORPS Project Number: TWC 16 0086 Client: Ryan Sharer Location: Allyn,Wa Date: 9/2016 s�++ JIIt• •�� , s rrQ _ WOW .e. r L , "- t �mot: ~ .� • ��, Jr y" ..t l 1, Mitigation Area Circled in Red FrK #1, + P LEGEND i h)E-i3tinc hwr to 6s rmnoecd. b[pr3posec site of new name c)taLatior,,of sceptic tank, D:LoCBtkir ni dra:nfiula. r E Lo:acn of hell. F�N' testenn ProFerty I ne, G)hen-reur pta e`rf line. H)Western creekfront prnptrey Ina. q Sc-ithern property line, I Prop+rty lire lout.(Cornar] tl Tcs}I shed,(To he rnr e] 4J paad access'Dri.L-Aay'(In orange) A)Center a°creek.IDark Blue Lint) '1]Suap hllleld4(Furpk Lmr) 7;Ter-oc-4 h'llad-ltlthr Slue alne) P)Parking s. Q)Ife t•glsk er. FIGURE 2. SITE MAP Project: Parcel 12229-22-00280 HMP Project Number: TWC 16 0086 _ Client: Ryan Sharer THE WETLAND CORPS Location: Allyn,Wa Date: 9/2016 Pr E_E1.1IF JV i E_Eh•.1IF . - • � r Approximate Parcel Location ` tt� , :L,514 US.FFsA and Wildlife Service,Nationat Standards and Support Team.wc,,I.. Figure adapted from the Figure 3. NWI Map NWI Mapping Website Section 29 Township 22 North Range 1 West FIGURE 3. NWI WETLANDS MAP Project: Parcel 12229-22-00280 HMP Project Number: TWC 16 0086 THE WETLAND CORPS Client: Ryan Sharer Location: Allyn, Wa Date: 9/2016 Mason County,Washington(WA645) y r Map Map Unit Name Acres Percent '7t 'f x it A i' } 'f ' V-. • r q' Unit in of AOI j ti tier Symbol AOI * Ilk Ab Alderwood gravelly sandy 3.7 23.7/o loam,8 to 15 percent slopes { Ac Alderwood gravelly sandy 5.0 32.3% Y k Y << A* loam,15 to 30 percent ., t �• Slopes ` ,i'" m � h # � •"��r. Bd Bellingham silt loam,0 to 3 0.2 1.0% percent slopes Ea Edmonds fine sandy loam,0 0.1 0.7°10 ' '► '% ` "5! to 2 percent slopes Ed Everett gravelly loamy sand, 2.3 14.7°h "ilk -IVO , 0 to 5 percent slopes Jc Juno loamy sand,0 to 3 3.8 24.5°!0 percent slopes Tn Tidal marsh,0 to 2 percent 0.5 3.1 to , ► y .``•s � slopes Totals for A of Intel 15.6 100.0%rea FIGURE 4. MASON COUNTY SOIL SURVEY Project: Parcel 12229-22-00280 HMP Project Number: TWC 16 0086 Client: Ryan Sharer THE WETLAND CORPS Location: Allyn,Wa Date: 9/2016 15 Lake Anderson s Puget sounr �1I Approximate Parcel Location r r o son I•oat to o2a ( Esd,HERE,DeLorme,NGA,USGS,NPS „ Water Bodies Flats/Gravel Bars Ice ® Man Made Features Open Water �r Wet Area Streams Streams — Type S — Type F — T)pe N, Np,Ns U,unknown X,non-typed perWAC 222-16 Project: Parcel 12229-22-00280 HMP Project Number: TWC 16 0086 Client: Ryan Sharer Location: Allyn,Wa THE WETLAND CORPS Date: 9/2016