All rankings
Nebraska · EPA ECHO (national)
Omaha CSO Sanitary Sewer System (Missouri River)
Permit NE0036358
—
No waterway impact reported
Reported events
7
Total volume
6K gal
Reached waterways
0 (0%)
Reporting since
2025
What caused the overflows
Other / Unknown
6
Equipment Failure
1
Reported overflow events (showing 7 of 7)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| May 18, 2026 | 500 gal | Other / Unknown | — | — |
| Apr 2, 2026 | 1K gal | Equipment Failure | — | — |
| Mar 24, 2026 | 436 gal | Other / Unknown | — | — |
| Jan 23, 2026 | 16 gal | Other / Unknown | — | — |
| Nov 13, 2025 | 60 gal | Other / Unknown | — | — |
| Oct 23, 2025 | 4K gal | Other / Unknown | — | — |
| Oct 23, 2025 | 450 gal | Other / Unknown | — | — |
Source: EPA ECHO (national). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.