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IDEM > Compliance > Water Compliance > Wastewater Compliance Evaluation > Sewer Bypass/Overflow Incident Weekly Report Sewer Bypass/Overflow Incident Weekly Report

A sanitary sewer system is a wastewater collection system that is specifically designed to collect and convey only sanitary wastewater (domestic sewage from homes, as well as industrial and commercial wastewater.) Storm water is conveyed through a separate set of pipes.

Some Sanitary Sewer Overflows (SSOs) occur when collection system capacity is exceeded because of wet weather (rain water or snow melt). During dry weather, normal flow may be blocked for any of several reasons, and mechanical failures may prevent the system from operating properly.

When a system experiences an SSO event, the owner must report that event to the Indiana Department of Environmental Management within 24 hours of the event. Treatment plant bypasses, which are releases of untreated or partially treated wastewater occurring at a wastewater treatment plant, must also be reported to IDEM within 24 hours.

Following is a summary of those sanitary sewer overflow and wastewater treatment plant bypass events reported to IDEM during the previous week. This list does not include precipitation-related Combined Sewer Overflow (CSO) releases [PDF] from authorized CSO outfalls, which are reported monthly.

If you have any questions, please contact (317) 232-8694, info at idem.IN.gov

Download Reports

All lists are in alphabetical order by county. All files are Microsoft Excel format.

2008

2007

2006

2005