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Gamma barn proposal at 82 Green St. continued as engineers address groundwater, DEP comments
Summary
The commission continued the hearing on Gamma’s proposed multi‑use barn at 82 Green Street after engineers outlined constraints — isolated wetlands, high groundwater (~18 inches), septic siting issues — and said DEP had cashed the filing fee and would issue comments.
The Gardner Conservation Commission continued a public hearing on a proposed 74‑by‑100‑foot multi‑use barn and associated parking at 82 Green Street after engineers described site constraints and said state review is pending.
McCarty Engineering and project representatives told the commission the site has multiple isolated wetlands and areas subject to a 30‑, 60‑ and 100‑foot buffer and that the groundwater table is relatively high; soils testing found seasonal high groundwater around 18 inches below grade. Engineered design choices include siting a septic system outside the most restrictive buffers, using a shallow stormwater detention basin sized for a one‑inch runoff event, and providing pretreatment for stormwater.
Project engineers also said they had contacted DEP and that DEP had cashed a filing fee on Oct. 8; they expected a DEP file number and written comments, which the team will address. Commissioners and engineers discussed tradeoffs in siting the building (moving it upslope reduces buffer impacts but could increase pavement and staging impacts) and ongoing coordination with the planning board.
After discussion the commission voted to continue the hearing to Nov. 24, 2025 to allow the project team to address DEP comments, finalize plans (including floodplain/plan graphics) and return with responses.
