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Illinois sewage discharges in 2024

22 records of sewage discharges and water advisories in Illinois dated in 2024, newest first. 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: Sanitary sewer overflow (SSO)10 · Combined sewer overflow (CSO)6 · Treatment bypass6

By source: EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators)22

2024 in other states: California, Connecticut, District of Columbia, Florida, Maine, Maryland, Massachusetts, Michigan, 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 2026-11-06 09:03 UTC.

Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system. Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater. Treatment bypass: wastewater skips one or more treatment steps.

Records in Illinois, 2024, newest first
WhenReportStatus
to 2:00 AM CSTCity of Wood River · Mississippi River · A01 · CSO · 242,000 gallons · notice · mapended
to Jan 2 ’25City of Pinckneyville · Beaucoup Creek · SSO · volume not reported · notice · mapended
to 5:45 AM CSTCity of Wood River · Mississippi River · A01 · CSO · 316,000 gallons · notice · mapended
to Dec 29 ’24City of Salem · Town Creek · Bypass · volume not reported · notice · mapended
to Dec 30 ’24, 9:05 AM CSTCity of Metropolis · 003 · CSO · 954,589 gallons · notice · mapended
to Dec 30 ’24, 3:00 PM CSTCity of Belleville · Richland Creek · 038 · CSO · 74.81 million gallons · notice · mapended
to 5:35 PM CSTCity of Metropolis · 003 · CSO · 201,348 gallons · notice · mapended
to 3:25 PM CSTNorthern Moraine WW Reclamation Dist · SSO · 500 gallons · notice · mapended
to 9:40 PM CSTCity of Duquoin · SSO · 1,000 gallons · notice · mapended
to 6:00 PM CSTCity of Carmi · Little Wabash River · SSO · 20 gallons · notice · mapended
to Dec 19 ’24, 3:00 PM CSTCity of Belleville · Richland Creek · 038 · CSO · 78.85 million gallons · notice · mapended
City of Cairo · “Ohio River” · Bypass · 250 gallons · notice · mapreported
to Nov 17 ’24, 3:30 PM CSTCity of Carbondale · Crab Orchard Creek · SSO · 140,000 gallons · notice · mapended
to 10:30 AM CSTFlagg Creek Water Reclamation District · Flag Creek · SSO · 500 gallons · notice · mapended
to Nov 9 ’24, 2:00 PM CSTCity of Pinckneyville · Beaucoup Creek · Bypass · 3.07 million gallons · notice · mapended
to 2:30 PM CSTCity of Troy · “Silver Creek” · Bypass · 69,000 gallons · notice · mapended
to 3:30 PM CSTCity of Troy · “Silver Creek” · Bypass · 1.13 million gallons · notice · mapended
to Nov 5 ’24Illinois American Water Company · Rocky Fork · SSO · volume not reported · notice · mapended
to Nov 5 ’24Illinois American Water Company · Mississippi River · Bypass · volume not reported · notice · mapended
to Nov 5 ’24Illinois American Water · Sandy Creek · SSO · volume not reported · notice · mapended
to 6:30 PM CSTSt. Clair Township · Loop Creek · SSO · 31,500 gallons · notice · mapended
to 2:00 PM CSTStookey Township · SSO · 82,500 gallons · notice · mapended

Sources: EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators), retrieved 2026-11-06 08:38 UTC. A report's record id and times show when you hover or focus its "report" link.