Discharge Monitoring Report Guidance
If you receive a compliance advisory about your discharge monitoring reports, please see this guidance.
If you identify an error in data on the EPA's Enforcement and Compliance History Online (ECHO) database, please report the error directly through this site.
EPA Advisory - Reducing Significant Non-Compliance
Clean Water Agencies Increasing Attention to Significant Non-Compliance Dischargers
Technical Assistance Webinar Series
Improving CWA-NPDES Permit Compliance at Small Wastewater Treatment Systems