Michigan sewage discharges in 2025
1,493 records of sewage discharges and water advisories in Michigan dated in 2025, newest first, 4 earlier versions or duplicates included and marked. Each record keeps the source's own times and wording; a record from the last three months, or one that sets a status now, also has a page of its own.
By type: Combined sewer overflow (CSO)1,105 · Sanitary sewer overflow (SSO)321 · Treatment plant bypass61 · Treatment bypass4 · Blended discharge2
By source: Michigan EGLE (MiEnviro CSO/SSO List)1,493
2025 in other states: Connecticut, District of Columbia, Florida, Georgia, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, Vermont, Virginia.
Source: the agencies, sewer operators and EPA records named on each row and on the Sources page. Updated 2026-11-05 01:25 UTC.
By month
- December 2025 110 records
- November 2025 60 records
- October 2025 70 records
- September 2025 103 records
- August 2025 109 records
- July 2025 219 records
- June 2025 193 records
- May 2025 168 records
- April 2025 214 records
- March 2025 127 records
- February 2025 38 records
- January 2025 82 records