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HomeMy WebLinkAboutSP-22-023 - Supplemental - 0095 Swift Street (6) South Burlington Stormwater Services  Dept of Public Works  104 Landfill Rd  South Burlington, VT 05403  Memo To: South Burlington Development Review Board From: Christine Gingras, Public Works Project Manager CC: Marla Keene, Development Review Planner Date: April 15, 2022 Re: City of South Burlington Site Plan Application for Develop Review The City of South Burlington's Stormwater Utility is proposing to implement a stormwater detention pond on the far west end of the Farrell Street Park parcel to treat runoff from Lindenwood Drive, Brewer Parkway and the City's rec path. Installation of the pond’s outlet pipe will impact wetlands on this parcel and a general wetland permit from the Vermont Department of Conservation was obtained. The proposed project will have no impact on current uses, buildings, or impervious areas. The pond outlet pipe will permanently impact 28 SF of existing class II wetland and 148 SF of associated buffer. Construction of the pond and installation of the outlet will temporarily impact 410 SF of the 50' wetland buffer and 5,362 SF of the 100' wetland buffer. Approximately 1200 CY of excavation will be required to construct the detention pond. This stormwater facility development project meets qualifying criteria to encroach into a natural resource because it is part of an Environmental Restoration Project (LDRs 12.02C.(3)). Potash Brook is classified as stormwater impaired and this project was identified in the Potash Brook Flow Restoration Plan (FRP) to manage runoff from a 10.57 AC area with 2.19 AC of impervious surface. We are submitting this project to the South Burlington DRB for review as a site plan application due to the proposed class II wetland impacts and the amount of fill that will be removed/ relocated on site. Included with this application, please find final project plans, VT ANR wetland permit, and project abutters. If you have any questions, please contact me at (802) 658 -7961 x 6111 or cgingras@southburlingtonvt.gov.