EPA New England Topics

Nonpoint Sources of Pollution

Information on nonpoint source (NPS) pollution, which unlike pollution from industrial and sewage treatment plants, comes from many diffuse sources. NPS pollution is caused by rainfall or snowmelt moving over and through the ground. As the runoff moves, it picks up and carries away natural and human-made pollutants, finally depositing them into lakes, rivers, wetlands, coastal waters, and even our underground sources of drinking water.

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EPA New England

Stormwater, LID and TMDL fact sheets available! Four fact sheets containing hyperlinks to related websites and resource documents in addition to New England case studies are now available Incorporating LID into Municipal Stormwater Programs (PDF) (11 pp., 317 KB) Managing Stormwater with LID Practices: Addressing Barriers to LID (PDF) (7 pp., 439 KB) Funding Stormwater Programs (PDF) (6 pp., 309 KB) Restoring Impaired Waters: TMDLs and Municipal Stormwater Programs (PDF) (5 pp., 288 KB)

National EPA

Nonpoint Sources of Pollution GreenScapes Low Impact Development Healthy Watersheds