10/20/2025 Annual Town Meeting - Laserfiche WebLink

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History: Added 10-19-2020, ATM, Article 14, approved by Attorney General 2-11- 2021 History: Amended 10-17-2022, ATM, Article 9, approved by Attorney General 12-23- 2022 (a) utilizes site planning and building techniques, including LID planning and development strategies unless infeasible, such as minimizing impervious surfaces and disturbance of existing natural areas, pervious reserve or overflow parking areas, multi-level buildings, parking structures, “green roofs” and storage and re-use of roof runoff, to minimize runoff volumes and the level treatment required to reduce contaminants (b) minimizes erosion and runoff from disturbed areas during construction and, (c) provides for the following: i. Artificial recharge or precipitation to groundwater through site design that incorporates natural drainage patterns and vegetation and through the use of constructed (stormwater) wetlands, bio retention facilities, vegetated filter strips, rain gardens, wet (retention) ponds, water quality swales, organic filters or similar-site-appropriate current best management practices capable of removing significant amounts of nitrogen and other contaminants from stormwater. Said stormwater treatment facilities shall be designed and sized to retain up to the first inch of rainfall from their catchment area within the area designed for nitrogen or phosphorus treatment, before any overflow to subsurface leaching facilities and otherwise meet the Stormwater Management Standards and technical guidance contained in the Massachusetts Department of Environmental Protection’s 2008 Stormwater Management Handbook, as amended, or State- approved BMP guidance, whichever is stricter 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. Except for overflow from stormwater treatment facilities as described above and when there are no other feasible alternatives, dry wells shall be prohibited. 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. Redevelopment must utilize a stormwater management systems designed to address the 2008 Massachusetts Stormwater Handbook , as amended following standards that are optimized to remove nitrogen and phosphorus and other contaminants from stormwater: Said stormwater treatment facilities shall be designed to meet an average annual pollutant removal equivalent to 80% of the average annual load of Total Suspended Solids (TSS) related to the total post-