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Illinois sewage discharges in 2009

3 records of sewage discharges and water advisories in Illinois dated in 2009, 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: Combined sewer overflow (CSO)3

By source: Metropolitan Water Reclamation District of Greater Chicago (Reversals to Lake Michigan table)3

2009 in other states: Michigan, Rhode Island.

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.

Records in Illinois, 2009, newest first
WhenReportStatus
to Jun 19 ’09Metro Water Reclamation District Of Greater Chicago · Lake Michigan · Wilmette Gate Wilmette gate (North Shore Channel) · CSO · 191.6 million gallons · notice · mapended
to Mar 8 ’09Metro Water Reclamation District Of Greater Chicago · Lake Michigan · Wilmette Gate Wilmette gate (North Shore Channel) · CSO · 143.1 million gallons · notice · mapended
to Feb 27 ’09Metro Water Reclamation District Of Greater Chicago · Lake Michigan · Wilmette Gate Wilmette gate (North Shore Channel) · CSO · 78.9 million gallons · notice · mapended

Sources: MWRD Lake Michigan reversals table (1985 to present), retrieved 2026-11-06 08:41 UTC. A report's record id and times show when you hover or focus its "report" link.