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New Hampshire · EPA ECHO (national)
KEENE SANITARY SEWER SYSTEM
Permit NH0100790
—
No waterway impact reported
Reported events
10
Total volume
410 gal
Reached waterways
0 (0%)
Reporting since
2022
What caused the overflows
Equipment Failure
8
Grease / FOG
1
Other / Unknown
1
Reported overflow events (showing 10 of 10)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Nov 4, 2025 | 50 gal | Equipment Failure | — | — |
| Sep 20, 2025 | 10 gal | Equipment Failure | — | — |
| Dec 16, 2024 | 100 gal | Equipment Failure | — | — |
| Jul 19, 2024 | 50 gal | Equipment Failure | — | — |
| Jun 17, 2024 | 50 gal | Equipment Failure | — | — |
| Apr 15, 2024 | 30 gal | Equipment Failure | — | — |
| Jun 8, 2023 | 50 gal | Other / Unknown | — | — |
| Mar 20, 2023 | 30 gal | Equipment Failure | — | — |
| Oct 31, 2022 | 20 gal | Equipment Failure | — | — |
| Sep 12, 2022 | 20 gal | Grease / FOG | — | — |
Source: EPA ECHO (national). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.