Stormwater Remediation

We have partnered with our watershed communities to reduce stormwater pollution through town-wide regulatory changes, demonstration projects that serve to improve awareness while also treating stormwater, and green infrastructure projects that install stormwater best management practices to manage known sources of stormwater pollution. Many of the following projects occurred outside our watershed boundaries through our partnership with the Massachusetts Bays Program.

Stormwater Bylaws

NSRWA and MassBays have worked with the Metropolitan Area Planning Council (MAPC) to encourage multiple South Shore communities to pass stormwater bylaws, which enable the town to regulate the stormwater associated with new construction. Currently, both Cohasset and Scituate have stormwater bylaws. We also continue to support the concept of stormwater utilities, which would provide funding for stormwater infrastructure maintenance.

Green Infrastructure Handbook

MassBays and EPA developed a handbook titled “Using Green Infrastructure to Treat and Control Stormwater in Coastal Communities”, targeted towards departments of public works and planning, conservation commissions and agents, and nonprofits concerned about water quality in coastal ecosystems. Workshops were held around the MassBays planning area to present the handbook. A PDF file of the green infrastructure handbook is available.

Demonstration Raingarden Project

In 2005 we received a 104b3 grant from the EPA to install demonstration raingardens in South Shore communities. A raingarden is a planting bed made with sandy soil, gravel, and native plants that collects stormwater runoff and absorbs it. We completed our gardens in 2008, and they are located throughout the South Shore at places like the MassAudubon North River Wildlife Sanctuary in Marshfield, the Hingham Public Library, and Plimoth Plantation.

Duxbury and Kingston Stormwater Management

The town of Duxbury conducted wet weather testing of its stormwater outfalls to Kingston and Duxbury Bay in 2010 and prioritized them for highest impact per project. Since that time, Duxbury has received funding almost annually from MassCZM to retrofit the outfalls and reduce stormwater pollution. The town of Kingston has followed in its neighboring town’s footsteps, starting with testing funded by the MassBays Research and Planning Grant Program, and has since completed multiple stormwater remediation projects.

Pembroke and Kingston Stormwater Retrofits

We assisted the towns of Kingston and Pembroke in the early 2000’s with grants they received through MassDEP’s 319 program to install LID retrofits. Raingardens and naturalized basins were installed at the Kingston Intermediate School, and Pembroke installed permeable pavers, porous pavement, and raingardens at the Oldham Pond boat ramp and the Town Hall.