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Connecticut sewage discharges in 2023

1,777 records of sewage discharges and water advisories in Connecticut dated in 2023, newest first, 1 earlier version or duplicate included and marked. Each record keeps the source's own times and wording; a record from the last six months, or one still in effect, also has a page of its own.

By type: Combined sewer overflow (CSO)1,240 · Sanitary sewer overflow (SSO)369 · Treatment plant bypass168

By source: Norwich Public Utilities (CT DEEP Sewage Right-to-Know annual report 2024)376 · Bridgeport WPCA West Side (CT DEEP Sewage Right-to-Know annual report 2024)286 · Greater New Haven WPCA (CT DEEP Sewage Right-to-Know annual report 2024)282 · MDC COLLECTIONS ONLY (CT DEEP Sewage Right-to-Know annual report 2024)223 · Norwich Public Utilities (CT DEEP Performance Dashboard)121 · Greater New Haven WPCA (CT DEEP Performance Dashboard)86 · Bridgeport WPCA East Side (CT DEEP Sewage Right-to-Know annual report 2024)84 · Bridgeport WPCA West Side (CT DEEP Performance Dashboard)72 · 33 more

2023 in other states: Maine, Massachusetts, New Hampshire, New York, Pennsylvania, Rhode Island, Vermont.

Source: the agencies, sewer operators and EPA records named on each row and on the Sources page. Updated 2026-11-02 21:26 UTC.

By month