About 53,300 results
Open links in new tab
  1. National Pollutant Discharge Elimination System (NPDES)

    Dec 11, 2025 · National Pollutant Discharge Elimination System (NPDES) ... What is NPDES? The NPDES permit program addresses water pollution by regulating point sources that discharge …

  2. NPDES Permit Basics | US EPA

    Jun 3, 2025 · Answers to questions like what is an NPDES permit, what is a pollutant, do I need an NPDES permit, etc.

  3. NPDES Stormwater Program | US EPA

    May 14, 2025 · The National Pollutant Discharge Elimination System (NPDES) stormwater program regulates some stormwater discharges from three potential sources: municipal separate storm sewer …

  4. About NPDES - US EPA

    Feb 21, 2025 · The NPDES permit program, created in 1972 by the Clean Water Act (CWA), helps address water pollution by regulating point sources that discharge pollutants to waters of the United …

  5. NPDES Regulations | US EPA

    Jan 10, 2025 · This final rule addresses a subset of the revisions proposed in 2016, modernizes the NPDES regulations, and promotes submission of complete permit applications.

  6. NPDES Permits around the Nation - US EPA

    Dec 29, 2025 · Find National Pollutant Discharge Elimination System (NPDES) wastewater permits issued by EPA across the nation.

  7. National Pollutant Discharge Elimination System Program

    Mar 18, 2025 · The NPDES program identifies information and tools that may be helpful to permit writers and permittees as they implement pollution control programs in the face of climate-related challenges.

  8. NPDES Tools - US EPA

    Mar 28, 2025 · To gain information on specific facilities with NPDES permits, several EPA public search tools may be helpful.

  9. NPDES Permit Limits | US EPA

    Sep 12, 2025 · Effluent limitations serve as the primary mechanism in NPDES permits for controlling discharges of pollutants to receiving waters.

  10. NPDES Applications and Forms-EPA Applications | US EPA

    Sep 29, 2015 · EPA developed the NPDES permit application forms in fillable Portable Document Format (PDF) to facilitate easier and more efficient completion of forms. The fillable PDF forms allow …