National Pollutant Discharge Elimination System (NPDES)
What is NPDES?
EPA and state NPDES programs regulate:
- publicly owned treatment works and industrial facilities discharging directly to surface waters
- industrial facilities discharging to publicly owned treatment works
- beneficial reuse of municipal sewage sludge (biosolids)
- runoff from animal feeding operations
- storm water discharges
On this page:
- Public Notices and Announcements
- "No Discharge" Zones
- Illinois Surface Discharge Permit (ILG62)
- Industrial Pretreatment Program
- State NPDES programs
Public Notices and Announcements
You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.
Public Notice: Union Township Wastewater Treatment Plant - Union Charter Township
EPA proposes to reissue a NPDES permit for the treated wastewater discharges from the Union Township Wastewater Treatment Plant located within the exterior boundaries of the Isabella Indian Reservation located in Union Charter Township, Michigan (Isabella County) to be issued by EPA.
"No Discharge" Zones
"No Discharge" zones are designated bodies of waters that prohibit the discharge of treated and untreated boat sewage.
Illinois Surface Discharge Permit (ILG62)
EPA’s National Pollutant Discharge Elimination System general permit authorizes discharges of pollutants to waters of the United States from New or replacement surface discharging systems in Illinois.
Industrial Pretreatment Program
The Pretreatment Program controls and minimizes the loading of pollutants to publicly owned treatment works from industrial, non-domestic sources to protect against operational, water quality, biosolids quality and worker health and safety problems.
State NPDES Programs
- Illinois Environmental Protection Agency
- Indiana Department of Environmental Management
- Michigan Department of Environmental Quality
- Minnesota Pollution Control Agency
- Ohio Environmental Protection Agency
- Wisconsin Department of Natural Resources
Permit Compliance System Data
Permit Compliance System (PCS) is a national computerized management information system that automates entry, updating and retrieval of National Pollutant Discharge Elimination System (NPDES) data and tracks permit issuance, permit limits and monitoring data, and other data pertaining to facilities regulated under NPDES.