Nonpoint Source (NPS) Pollution Management
Many activities associated with various land uses within Connecticut have the potential to contribute pollution to ground and surface water resources. Water pollution that is not concentrated within a drainage system, or discharged from a point, such as a pipe, is called nonpoint source pollution.
Potential sources of Nonpoint Source Pollution include
- waste from domestic animals and wildlife,
- malfunctioning septic systems,
- runoff from impervious surfaces and managed turfgrass,
- soil erosion,
- atmospheric deposition,
- marinas and boating activity,
- and others.
In Connecticut, stormwater pollution from urban areas that is collected in stormdrains, or that discharges from construction, commercial, or industrial sites, is regulated by stormwater general permits, so is technically considered point source pollution. More information on Stormwater Management and Permitting
The Connecticut Department of Energy and Environmental Protection has worked to develop programs, technologies and legislation with both local and national significance that are protective of water resources, and has led a national pilot program to monitor nonpoint source pollution at residential development sites.
- Connecticut Nonpoint Source Management Program Plan Approved September 10, 2019
- Nonpoint Source Management Program Annual Reports
- 319 Nonpoint Source Quality Assurance Program Plan Approved April 2006, PDF
- Success Stories
- Municipal Outreach for Green Infrastructure and Low Impact Development
- Phosphorus Reduction Strategy for Inland Non-Tidal Waters
- Coastal Nonpoint Source Pollution Control
- Incorporation of Low Impact Development Principles into Stormwater General Permits
- Best Management Practices for Agriculture (Revised 1996)
- Best Management Practices for Forestry While Harvesting Forest Products (2007)
- EPA Spreadsheet Form Mandated Elements for GRTS Projects - (XLS) form updated March 2015