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National Pollutant Discharge Elimination System (NPDES)

Combined Sewer Overflows in the Great Lakes Basin-Indiana

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 19 NPDES permits for CSO discharges in the Great Lakes Basin in Indiana. 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.

Map of CSO communities in Indiana 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 IN0020672 Lake Erie Cedar Creek Auburn website Auburn annual notice
(2 pp, 139 K, About PDF)
Berne IN0021369 Lake Erie Habegger Ditch, Spruger Ditch Berne website  
Butler IN0022462 Lake Erie Big Run Butler website  
Chesterton IN0022578 Lake Michigan East Arm Little Calument River    
Crown Point IN0025763 Lake Michigan Main Beaver Dam Ditch Crown Point website  
East Chicago IN0022829 Lake Michigan Indiana Harbor Canal, Grand Calument River East Chicago website  
Elkhart IN0025674 Lake Michigan Elkhart River, St. Joseph River, Christina Creek Elkhart website Elkhart annual notice
(10 pp, 160 K, About PDF)
Fort Wayne IN0032191 Lake Erie Maumee River, St. Mary's River, Spy Run Creek, St. Joseph River, UNT Fort Wayne website Fort Wayne annual notice
(676 pp, 65.8 MB, About PDF)
Gary IN0022977 Lake Michigan Grand Calumet River, Little Calumet River Gary website Gary annual notice
(16 pp, 2.6 MB, About PDF)
Hammond IN0023060 Lake Michigan Grand Calumet River, East Arm Little Calumet River Hammond website Hammond annual notice
LaPorte Municipal IN0025577 Lake Michigan Travis Ditch LaPorte website  
Lowell IN0023621 Lake Erie Cedar Creek Lowell website  
Michigan City IN0023752 Lake Michigan Trail Creek Michigan City website Michigan City annual notice
(4 pp, 117 K, About PDF)
Mishawaka IN0025640 Lake Michigan St. Joseph River, Eller Ditch Mishawaka website Mishawaka annual notice
(12 pp, 821 K, About PDF)
Nappanee IN0021466 Lake Michigan Berlin Court Ditch, Armey Ditch Nappanee website Nappanee annual notice
(101 pp, 16.8 MB, About PDF)
South Bend IN0024520 Lake Michigan St. Joseph River South Bend website South Bend annual notice
(6 pp, 308 K, About PDF)
Valparaiso IN0024660 Lake Michigan Salt Creek Valparaiso website Valparaiso annual notice
(6 pp, 40 K, About PDF)
Wakarusa IN0024775 Lake Michigan Werntz Ditch   Wakarusa annual notice
(8 pp, 342 K, About PDF)
Waterloo IN0020711 Lake Erie Cedar Creek Waterloo website Waterloo annual notice

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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