2022-Annual Town Report - Laserfiche WebLink

Home Browse Search

amounts of nitrogen and other contaminants vi. For projects which employ bio retention or from stormwater. Said stormwater similar filtering best management practices treatment facilities shall be designed and (e.g.,rain gardens,tree filters,sand/organic sized to retain up to the first inch of rainfall filters, and dry water quality swales) filter from their catchment area within the area media and/or an internal water storage designed for nitrogen 51 treatment, before zone to optimize nitrogen and phosphorous any overflow to subsurface leaching removal shall be incorporated into the facilities and otherwise meet the Stormwater design for treatment prior to infiltration. Management Standards and technical vii. Design of new stormwater quantity guidance contained in the Massachusetts control BMPs and other drainage Department of Environmental Protection's system components shall be designed in Stormwater Management Handbook, as accordance with Resilient Massachusetts amended,or State-approved BMP guidance, Action Team (RMAT) Climate Resilience whichever is stricter Volumes 1 and 2,dated Design Standards and Guidelines, as March 1997, for the type of use proposed amended,to account for projected increases and the soil types present on the site. Such in precipitation intensity and frequency runoff shall not be discharged directly over the duration of the useful life of the to rivers, streams, other surface water systems, bodies, wetlands or vernal pools. Except for overflow from stormwater treatment or take any other action relating thereto. facilities as described above and when there are no other feasible alternatives,dry wells Submitted by the Board of Selectmen shall be prohibited. ii. Except when used for roof runoff from Explanation: This article specifies specific low non-galvanized roofs and for runoff from impact design requirements for removal of nitrogen minor residential streets,all such wetlands, and phosphorous from stormwater at all lots that are ponds, swales or other infiltration facilities not single and two family dwellings such as new shall be preceded by oil, grease and subdivision roadways, commercial and industrial sediment traps or fore bays or other best uses/buildings, and multifamily residential. Further, management practices to facilitate control this article proposes a minor reformatting of text of hazardous materials spills and removal of by indenting subsections appropriately where they contamination and to avoid sedimentation currently are not.This article requires a 2/3 vote. of treatment and leaching facilities. iii. All such artificial recharge systems shall The Board of Selectmen recommended approval of be maintained in full working order by Article 9 by a vote of 4-0 the owner(s) under the provisions of an operations and maintenance plan approved The Finance Committee recommended approval of by the permitting authority to assure that Article 9 by a vote of 4-0 systems function as designed. iv. Infiltration systems shall be located so that The Planning Board unanimously recommended no part of any leaching system is located approval of Article 9. less than one hundred (100) feet from drinking water wells. Any infiltration Motion made by Select Board Member Wyman- basins or trenches shall be constructed Colombo: with a three (3') foot minimum separation between the bottom of the leaching system I move that the Town vote to approve Article 9 as and maximum groundwater elevation printed in the warrant with the exception of the v. Roadway widening or improvements that phrase"or take any other action relating thereto'. increase the amount of impervious area on Motion passes unanimously at 7:15 p.m. 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. 85