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  2. National Pollutant Discharge Elimination System (NPDES)

Industrial User Waste Survey Procedures Webinar

This webinar discusses the regulatory background of industrial wastewater surveys used to identify industrial user (IU) discharges of concern to publicly owned treatment works (POTWs), procedures for conducting the initial and ongoing surveys, timing of conducting the surveys, conducting reassessments, and procedures on how to keep the survey information update and current. The webinar presents helpful hints and common errors found during the surveying processes.

Presentation video:

  • Presentation slides (pdf) (568.32 KB)
  • Additional resources (pdf) (151.09 KB)

National Pollutant Discharge Elimination System (NPDES)

  • About NPDES
    • Permit Basics
    • State Program Information
    • Permit Limits
    • Program Management and Oversight
    • NPDES Regulations
    • Other Federal Laws that Apply to the NPDES Permit Program
  • All NPDES Program Areas
    • Animal Feeding Operations
    • Aquaculture
    • Forest Roads
    • Industrial Wastewater
    • Municipal Wastewater
      • Combined Sewer Overflows (CSOs)
      • Sanitary Sewer Overflows (SSOs)
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      • EPA's Residual Designation Authority
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    • Water Quality Trading
  • NPDES Technical Resources
    • Resources for Permit Writers
    • NPDES Permit Writers' Manual
    • NPDES Training
    • Tools
    • Electronic Notice of Intent (eNOI)
    • NPDES Applications and Forms
Contact Us About NPDES
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on February 14, 2025
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