10/19/2020 Annual Town Meeting - Laserfiche WebLink

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ii. Except when used for roof runoff from non -galvanized roofs and for runoff from minor residential streets, all such wetlands, ponds, swales or other infiltration facilities shall be preceded by oil, grease and sediment traps or fore bays 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. iii. 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. iv. Infiltration systems shall be located so that no part of any leaching system is located less than 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 leaching system and maximum groundwater elevation. V. Roadway widening or improvements that increase the amount of impervious area on the redevelopment site by greater than or equal to a single lane width shall meet the requirements of MS4GP part 2.3.6.a.ii.4(a) — (c)fully. C. The Building Inspector shall require the submission of sufficient plans and specifications to demonstrate the location and nature of proposed stormwater facilities for development under subsection B (1) and shall require their implementation. For development and redevelopment under subsection B (2), the permitting authority shall require the submission of sufficient plans and specifications to demonstrate the location, nature, 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 acting relating thereto. Submitted by the Planning Board Explanation: This article is a housekeeping article that will update the Town's stormwater management practices for compliance with its MS4 General Permit issued by the Environmental Protection Agency. The Board of Selectmen recommends approval of Article 14 by a vote of 5-0 The Finance Committee recommends approval of Article 14 by a vote of 5-0 The Planning Board recommends approval of Article 14 by a vote of 5-0 LK