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Stormwater Management SummaryHutchins Engineering September 6, 2022 Ms. Laura Moore, Land Use Planner Town of Queensbury Planning Department 742 Bay Road Queensbury, NY 12804 169 Haviland Road Queensbury, NY 12804 PLLC Phone: (518) 745-0307 Fax: (518) 745-0308 Reference: Stormwater Management Summary; Thomas & Marybeth Babcock Tax Map #289.13-1-12; 15 Chestnut Road Dear Ms. Moore: In response to your request for additional information regarding stormwater management for the referenced application, we offer the following: The Babcock residence contains stormwater infiltration devices which have been previously installed and are effective. The entire house roof is presently guttered and piped to two stormwater drywells, located near the northeast and southeast corners of the house. These drywells manage all rooftop runoff from the house without issue, and the small building addition will be guttered and piped directly to the southerly drywell. The existing driveway and half of the garage roof drain to a precast concrete drywell located to the north of the existing garage. This structure also manages considerable runoff generated from the Town Road. As the site plan proposes reducing the impermeable driveway area by over 400 SF and increasing the garage area by 220 SF, garage roof runoff will be managed in this device. Additionally, the applicants have proposed a 5' wide x 34' long perennial buffer planting bed which runs across much of the width of the property and will provide additional collection and treatment of stormwater runoff. Considering the proposal will result in a net increase in site permeability, I trust the above summary adequately addresses your concerns. As always, please contact me if you wish to discuss. Best regards, �J VW G. Thomas Hutchins, P.E. Cc. Thomas and Marybeth Babcock