Plan commission weighs post-construction BMPs as MS4 rules shift toward water quality

Sep 3, 2026

Planning staff presented options for post-construction best-management practices — bioswales, permeable pavement, rain gardens and others — and commissioners debated a fixed list versus a flexible menu, maintenance responsibilities, inspection frequency and scaling requirements by project acreage.

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Planning staff introduced a proposal to adopt post-construction best-management practices (BMPs) after an audit flagged the town's approach. Staff listed options such as bioswales, underground detention, infiltration basins, vegetative swales, permeable pavement and rain gardens and said the town must decide which practices it wants to encourage or require as development occurs.

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