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National Pollutant Discharge Elimination System (NPDES)

Combined Sewer Overflows in the Great Lakes Basin-New York

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 are 17 NPDES permits for CSO discharges in the Great Lakes Basin in New York. The table below provides information about those permittees and, where available, links to their CSO website and Annual Notice describing the CSO discharges that occurred in 2018. The New York Department of Environmental Conservation also compiles historical sewage discharge data from its NY-Alert system in the Sewage Discharge Reports. Thes reports are available for download on New York Department of Environmental Conservation’s Sewage Discharge Notifications websiteExit

Map of CSOs in New York that drain to the Great Lakes Basin

The following links exit the site Exit

Municipal Operator of CSO NPDES Permit Number Great Lake Discharged To Water Body Directly Discharged Into Website Annual CSO Notice
Auburn STP NY0021903 Lake Ontario Owasco Outlet Auburn website  
Boonville WWTP NY0020494 Lake Ontario Mill Creek    
Buffalo Sewer Authority NY0028410 Lake Erie Niagra River, Buffalo River, Scajaquada Creek, Black Rock Canal, Cazenovia Creek    
Canastota WPCF NY0029807 Lake Ontario Canastota Creek Canastota website  
Dunkirk WWTP NY0027961 Lake Erie Lake Erie    
Frank E. VanLare STP (Rochester) NY0028339 Lake Ontario Genesee River, Irondequoit Bay    
Gouverneur STP NY0020117 St. Lawrence Seaway Oswegatchie River Gouverneur website  
Lockport WWTP NY0027057 Lake Ontario Barge Canal and Eighteen Mile Creek Lockport website  
Massena WWTP NY0031194 St. Lawrence Seaway Grasse and Raquette Rivers Massena website  
Medina WWTP NY0021873 Lake Ontario Barge Canal and Oak Orchard Creek Medina website  
Niagra Falls WWTP NY0026336 Lake Erie Niagra River    
North Tonawanda WWTP NY0026280 Lake Ontario Niagara River    
Ogdensburg WWTP NY0029831 St. Lawrence Seaway St. Lawrence River Ogdensburg website Ogdensburg annual notice
(28 pp, 732 K, About PDF)
Oswego NY0029106, 
Lake Ontario Oswego River Oswego website Oswego annual notice
(3 pp, 202 K, About PDF)
Syracuse Metro WWTP NY0027081 Lake Ontario Harbor Brook    
Watertown WPCP NY0025984 Lake Ontario Black River    

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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