Progress / Science

Underhill Stormwater Master Plan Identifies Priority Clean Water Projects

The Chittenden County Regional Planning Commission (CCRPC) and the Town of Underhill are pleased to announce the completion of the Underhill Stormwater Master Plan. The plan identifies five priority sites for projects that will maximize water quality benefits in local streams.  With detailed conceptual designs and cost estimates completed, the town is well prepared to seek additional support to complete the projects.

With support from an Ecosystem Restoration grant, CCRPC hired Watershed Consulting Associates, LLC (WCA) to prepare the plan.  WCA staff consulted with the town and used a previous Underhill Stormwater Mapping Report completed by the Vermont Department of Environmental Conservation (VTDEC) to identify known problem areas, then visited 50 discrete locations.  After the initial field visits were completed, a preliminary ranking system was devised, which narrowed the list of possible projects to 35 locations.  This ranking system used several criteria such as co-benefits, drainage area size, percent impervious cover, cost, phosphorus load reduction estimates, and proximity to surface water.  This list of 35 locations was then further analyzed to prioritize 5 sites for production of detailed conceptual designs and cost estimates (see table below).

For more information about the plan, contact Danielle Owczarski, Basin Planner, at Danielle.Owczarski@vermont.gov or (802) 490-6176.