Learn about the Permeable Paving Materials and Bioretention in a Parking Lot Demonstration for the Ipswich River Watershed Project.
Silver Lake is an important recreation area that supports swimming, fishing, wildlife viewing, and boating. However, the lake’s quality was deteriorating from nutrients, sediment, and bacteria entering the lake from the surrounding stormwater system (which includes several pipe outlets to the lake) and nonpoint source runoff. Beach closures due to high bacteria counts had occurred repeatedly for many years prior to this demonstration.
This project incorporated three low-impact development (LID) practices designed to reduce runoff volume, improve water quality, and enhance groundwater recharge:
- Permeable paving materials
- Bioretention cells
- Vegetated water quality swales
Read the full demonstration including purpose, details, milestones, cost and data collection/analysis. View: https://www.mass.gov/service-details/demonstration-3-permeable-paving-materials-and-bioretention-in-a-parking-lot