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Falmouth committee weighs permeable reactive barrier to intercept nitrogen plume at Snug Harbor
Summary
The committee reviewed groundwater data showing a nitrate plume entering Snug Harbor, discussed likely PRB siting along Nashawina Street or the bike path, estimated drilling and construction costs for test wells, and set a fast timeline for a grant letter of intent that requires selectmen approval.
FALMOUTH — Members of the Water Quality Management Committee considered a proposed permeable reactive barrier (PRB) for Snug Harbor, a targeted, near‑term intervention meant to intercept a documented groundwater nitrate plume before it enters the harbor.
Data and site: Committee slides and discussion identified Snug Harbor as a local hotspot with elevated nitrate at shallow and deeper well depths; map and transect plots presented to the group indicated the plume is entering the harbor area and that a PRB sited near Nashawina…
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