What is the primary focus of the NPDES stormwater regulation?

The primary focus of the NPDES (National Pollutant Discharge Elimination System) stormwater regulation is to control stormwater discharge into waters of the United States. This regulation was established to address the impact of stormwater runoff, which can carry pollutants from urban and rural areas into lakes, rivers, and coastal waters. By implementing measures and requiring permits for stormwater discharges, the NPDES aims to mitigate the negative effects of this runoff on water quality and aquatic ecosystems.

The NPDES recognizes that stormwater can significantly contribute to water pollution, particularly in developed areas where impervious surfaces increase the volume and speed of runoff. Through the regulation of these discharges, the NPDES promotes best management practices (BMPs) to reduce pollution and protect water resources, marking a crucial step in ensuring clean and safe waters throughout the country.