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HomeMy WebLinkAboutRS_Habitat Report_240614_v1.pdf ATTACHM ENT 24: HABITAT DATA REP ORT 425-869-2670 ■ 15325 SE 30th Place, Suite 300 ■ Bellevue, Washington 98007 ■ www.dowl.com Critical Areas Found on the Site The City of Renton critical area maps show that the entire Renton Municipal Airport property is within a Zone 2 Aquifer Protection Area. The City of Renton Flood Hazard Map shows the entire Renton Municipal Airport property is mapped as within a FEMA Flood Zone X – Non-Regulatory. Flood Zone X indicates an area with moderate to low risk for floods. There are no other critical areas mapped within the Renton Municipal Airport property. However, the Cedar River, a Shoreline of the State, is immediately adjace nt to the eastern property boundary. The proposed project is entirely outside of the floodway and floodplain. Habitat Found on the Site The Renton Municipal Airport contains little to no habitat features. The site is predominately paved areas, with mowed grasses. The airport site contains numerous buildings and structures used for aviation facilities and operations. Disturbed Areas The entire airport property is disturbed, and a significant portion of the property is paved. Species Associated with Cover Type The vegetative cover type is predominately mowed grasses which would provide limited habitat for small mammals and city birds including crows and starlings. Critical Wildlife Species A review of Washington Department of Fish and Wildlife (WDFW) Priority Habitats and Species (PHS) map tool showed there are no priority wildlife species present on the airport property. However, the Cedar River, adjacent to the airport property, contains the following priority fish species: sockeye (Oncorhynchus nerka), coho (Onchorhynchus kisutch), Chinook (Oncorhynchus tshawytscha), cutthroat trout (Oncorhyncus clarkii), kokanee (Oncorhyncus nerka), steelhead (Oncorhyncus mykiss), Dolly Varden (Salvelinus malma), and bull trout (Salvelinus confluentus). Migration or Movement Corridors The Renton Municipal Airport is within the Pacific flyway, a major migrating corridor for birds in North America west of the continental divide. However, the project site itself is DATE: July 22, 2024 APPLICANT: William Adams, Renton Municipal Airport 616 West Perimeter Road, Renton WA 98057 (206) 775 6862 wadams@rentonwa.gov SUBJECT: Renton Aprons – Habitat Data Report Narrative and Critical Areas Study MEMORANDUM Page 2 of 3 not a known congregation point for migrating birds. Additionally, the Cedar River is an important migration corridor for salmonid species. Existing Habitat Functions and Values The Renton Municipal Airport provides little to no habitat functions or values. The site is so disturbed and dominated by urban development that the site provides little to no benefit to wildlife species. Impacts and Proposed Habitat Alterations The proposed project will result in removal of approximately 3,900 square feet of gras s at the Building 243 project site. The site will be revegetated with several landscape island which will include small trees and shrubs. A habitat management program is not proposed because the project will not result in any permanent habitat impacts. Endangered Species Act Compliance There are no Endangered Species Act listed species present on the airport site. There are listed fish species documented in the Cedar River. The project does not include any work that would result in impacts to the Cedar River and therefore, would not impact any listed fish species. Best Management Practices A Temporary Erosion and Sediment Control Plan (TESC) and Stormwater Pollution Prevention Plan (SWPPP) were developed for this site to provide temporary sediment control measures while construction is ongoing. Temporary erosion control measures will be in place during construction to minimize impacts. Maintenance, Monitoring and Contingency Plans No maintenance, monitoring or contingency plans are proposed because the project will not impact any critical areas. No mitigation is proposed. Accuracy and Best Available Science The accuracy of this narrative is based on the accuracy of the available so urces that were reviewed in July 2024. The project area incorporated the use of best available science by reviewing the following sources: • City of Renton Aquifer Protection, Coal Mine Hazard, Erosion Hazard, Flood Hazard, Landslide Hazard and Steep Slopes Sensitive Areas Maps (2022) • King County iMap layers for Environmentally Sensitive Areas, Flooding Info, Hydrography and Hydrology, Landslides, Stormwater Services and Elevation Contours • Google Earth Satellite Imagery dated April 13, 2024 • Washington Department of Fish and Wildlife Priority Habitat and Species Map Tool • Northwest Indian Fisheries Statewide Integrated Fish Distribution online map tool • U.S. Fish and Wildlife Service National Wetland Inventory Wetlands Mapper MEMORANDUM Page 3 of 3 Qualifications of Preparers This report was prepared on July 11, 2024, by Michelle Brownell and reviewed by Theresa Dutchuk. Michelle has a B.S. in Wildlife Ecology and over 5 years of experience as an environmental consultant. Theresa has 15 years of NEPA and environmental compliance experience. No field work was conducted to complete this evaluation.