05/03/1999 Annual Town Meeting - Laserfiche WebLink

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utilizes nonstructural techniques, including pollution prevention and source reduction, to minimize the type of treatment needed for stormwater and 3) provides for the artificial recharge of precipitation to groundwater through site design that incorporates natural drainage patterns and vegetation and through the use of constructed (stormwater) wetlands, wet (retention) ponds, water quality swales, sand filters, organic filters or similar site-appropriate best management practices capable of removing nitrogen and other contaminants from stormwater and meeting the Stormwater Management Standards and technical guidance contained in the Massachusetts Department of Environmental Protection's Stormwater Management Handbook, Volumes 1 and 2, dated March 1997, for the type of use proposed and the soil types present on the site. Such runoff shall not be discharged directly to rivers, streams, other surface water bodies, wetlands or vernal pools. Dry wells shall be prohibited. Except when used for roof runoff from non-galvanized roofs, all such wetlands, ponds, swales or other infiltration facilities shall be preceded by oil, grease and sediment traps or other best management practices to facilitate control of hazardous materials spills and removal of contamination and to avoid sedimentation of treatment and leaching facilities. All such artificial recharge systems shall be maintained in full working order by the owner(s) under the provisions of an operations and maintenance plan approved by the permitting authority to assure that systems function as designed. Infiltration systems greater than three (3) feet deep shall be located at least one hundred (100) feet from drinking water wells. Any infiltration basins or trenches shall be constructed with a three (3) foot minimum separation between the bottom of the structure and maximum groundwater elevation. C. The permitting authority shall require the submission of sufficient plans and specifications to demonstrate the operation and effectiveness of the proposed stormwater management facilities and practices and shall require their implementation and maintenance, including provisions for deed restrictions and other implementing provisions, as a condition of approval of the proposed development. No permit may be approved for a development unless the permitting authority determines in writing that the proposed system of stormwater management and artificial recharge will achieve the purposes described in subsection A." or take any other action related thereto. Submitted by Petition Planning Board voted at a Public Hearing held on April 28, 1999 3-0 for approval. Motion made by Edward Baker: I move that Article 45 be voted as printed in the warrant, with the exception of the phrase or take any other action relating thereto. Motion passes unanimously at 9:04 p.m.