Pennsylvania Water Discharge Data — Searchable and Tracked

Facilities across Pennsylvania report what they discharge into rivers, streams, and waterways under NPDES (National Pollutant Discharge Elimination System) permits. We make those public records searchable, show when reported values exceed legal permit limits — known as exceedances — and send you alerts when new data is published.

See it in action · set up email alerts for specific facilities

3,295

Permits Tracked

Counties in Dataset

53,691

Limit Exceedances

177

Parameters Monitored

Data covers monitoring periods from January 2021 through March 2026.

Data Disclaimer: PermitMinder reformats publicly available PA DEP (Pennsylvania Department of Environmental Protection) eDMR (Electronic Discharge Monitoring Report) data. This data is self-reported by permitted facilities to PA DEP. The appearance of a record does not indicate any regulatory determination. Exceedance data reflects reported values compared to permit limits on file and may not account for variances, consent orders, or reporting corrections. Always verify information with PA DEP before making decisions. PermitMinder is independently operated and is not affiliated with EPA, PA DEP, or any government agency.

How It Works

Facilities with NPDES permits in Pennsylvania are required to self-report discharge monitoring data to PA DEP. When a reported value exceeds the numeric limit in a facility's permit, that's an exceedance. PermitMinder compiles these public records into a searchable database so anyone can find exceedances without digging through state reporting systems.

Search

Find any NPDES-permitted facility in Pennsylvania by name, permit number, county, or discharge parameter.

Review

See reported discharge values alongside permit limits, with percentage-over-limit calculations for each monitoring period.

Monitor

Set up email alerts for specific facilities or counties and get notified when new exceedance data is published.