National Pollutant Discharge Elimination System
Quick Summary
The National Pollutant Discharge Elimination System (NPDES) is a program within the U.S. Clean Water Act (CWA) of 1972. The CWA aims to restore and maintain the nation's water quality. The NPDES program specifically regulates point-source pollution, which originates from specific locations like sewers and factories.
Under NPDES, any facility that discharges wastewater must obtain permits from the Environmental Protection Agency (EPA). These permits set limits on the amount of pollutants that can be discharged into rivers, lakes, and coastal waters. The program also includes a National Pretreatment Program to reduce pollutants from industrial sources before they enter the sewer system, promoting safer operations and potential reuse of wastewater and sludge. While the CWA has led to significant improvements, challenges remain, including nonpoint-source pollution and infrastructure needs.
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