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Water: Polluted Runoff

Polluted Runoff: Nonpoint Source Pollution

Polluted Runoff Quick Finder
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What is nonpoint source pollution?

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Nonpoint source (NPS) pollution, 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 ground waters.

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