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National Pollutant Discharge Elimination System (NPDES)

Combined Sewer Overflows in the Great Lakes Basin-Pennsylvania

There are 152 NPDES permits which authorize discharges from combined sewer overflows (CSOs) to the Great Lakes Basin. Select the state in the right-side box for the list of CSO permits in the Great Lakes Basin in that state.

There is one NPDES permit for CSO discharges in the Great Lakes Basin in Pennsylvania. The table below provides information about that permittee and a link to the CSO website and Annual Notice describing the CSO discharges that occurred in 2018.

Map of CSO communities in Pennsylvania that drain to the Great Lakes Basin

Municipal Operator of CSO NPDES Permit Number Great Lake Discharged To Water Body Directly Discharged Into Website Annual CSO Notice
City of Erie PA0026301 Lake Erie Lake Erie   Erie annual noticeExit

EPA’s Enforcement and Compliance History Online (ECHO) database has additional information on NPDES discharges, including CSO discharges for some facilities.

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