10/17/2022 Annual Town Meeting - Laserfiche WebLink

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removal of contamination and to avoid sedimentation of treatment and leaching facilities. ill. 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. Vt. For projects which employ bio retention or similar filtering best management practices (e.g., rain gardens, tree filters, sand/organic filters, and dry water quality swales) filter media and/or an internal water storage zone to optimize nitrogen and phosphorous removal shall be incorporated into the design for treatment prior to infiltration. vii. Design of new stormwater quantity control BMPs and other drainage system components shall be designed in accordance with Resilient Massachusetts Action Team (RMAT) Climate Resilience Design Standards and Guidelines, as amended, to account for projected increases in precipitation intensity and frequency over the duration of the useful life of the systems, or take any other action relating thereto. Submitted by the Board of Selectmen Explanation: This article specifies specific low impact design requirements for removal of nitrogen and phosphorous from stormwater at all lots that are not single and two family dwellings such as new subdivision roadways, commercial and industrial usesibuildings, and multifamily residential. Further, this article proposes a minor reformatting of text by indenting subsections appropriately where they currently are not. This article requires a 2/3 vote. The Board of Selectmen recommended approval of Article 9 by a vote of 4-0 The Finance Committee recommended approval of Article 9 by a vote of 4-0 The Planning Board unanimously recommended approval of Article 9. Motion made by Select Board Member Wyman -Colombo: I move that the Town vote to approve Article 9 as printed in the warrant with the exception of the phrase "or take any other action relating thereto". Motion passes unanimously at 7:15 p.m. 7