Sewer overflows in Rhode Island
Sewer overflow record — reported spills, the worst utilities, and how often overflows reached waterways in Rhode Island.
Reported events
212
Total volume
28.2M gal
Reached waterways
0(0%)
Latest event
Jun 24, 2026
Worst utilities in Rhode Island
Ranked by number of reported overflow events.
Biggest spills in Rhode Island
The largest single reported overflow events.
- 11.1M galMar 24, 2026Reached Seekonk River
- 3.7M galMar 9, 2024Reached No discharge was sent to the river.
- 1.9M galJan 23, 2025Reached Blackstone River
- 1.7M galMar 13, 2026Reached Pawtuxet River
- 1.5M galApr 3, 2024Reached No discharge was sent to the river.
- 1.3M galMay 2, 2025Reached Pawtuxet River
- 1.3M galMar 7, 2024Reached No direct discharge was sent to the river.
- 1.2M galApr 10, 2026Reached Pawtuxet River
- 1.1M galFeb 11, 2024Reached n/a
- 906K galMay 16, 2024Reached No discharge was sent to the river.