All rankings
New York · New York (DEC)
Chemung Co Elmira SD STP
Permit NY0035742
F
Usually reaches water
Reported events
109
Total volume
45.7M gal
Reached waterways
109 (100%)
Reporting since
2021
What caused the overflows
Rainfall / Flooding
109
Reported overflow events (showing 109 of 109)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Mar 25, 2023 | 0 gal | Rainfall / Flooding | Yes | Chemung River |
| Mar 25, 2023 | — | Rainfall / Flooding | Yes | Chemung River |
| Dec 22, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Dec 22, 2022 | 0 gal | Rainfall / Flooding | Yes | Chemung River |
| Nov 11, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Nov 11, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Nov 11, 2022 | 1.5M gal | Rainfall / Flooding | Yes | Chemung River |
| Nov 11, 2022 | 5.0M gal | Rainfall / Flooding | Yes | Chemung River |
| Nov 6, 2022 | 36K gal | Rainfall / Flooding | Yes | Chemung River |
| Nov 6, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Sep 22, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Sep 22, 2022 | 33K gal | Rainfall / Flooding | Yes | Chemung River |
| Sep 5, 2022 | 1.7M gal | Rainfall / Flooding | Yes | Chemung River |
| Sep 5, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Sep 4, 2022 | 2.1M gal | Rainfall / Flooding | Yes | Chemung River |
| Sep 4, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Aug 30, 2022 | 827K gal | Rainfall / Flooding | Yes | Chemung River |
| Aug 30, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Aug 5, 2022 | 173K gal | Rainfall / Flooding | Yes | Chemung River |
| Aug 5, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Aug 4, 2022 | 557K gal | Rainfall / Flooding | Yes | Chemung River |
| Aug 4, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Jun 9, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Jun 9, 2022 | 170K gal | Rainfall / Flooding | Yes | Chemung River |
| Jun 8, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Jun 8, 2022 | 1.8M gal | Rainfall / Flooding | Yes | Chemung River |
| Jun 1, 2022 | 1.4M gal | Rainfall / Flooding | Yes | Chemung River |
| Apr 7, 2022 | 2K gal | Rainfall / Flooding | Yes | Chemung River |
| Apr 7, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Mar 31, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Mar 31, 2022 | 16K gal | Rainfall / Flooding | Yes | Chemung River |
| Mar 19, 2022 | 122K gal | Rainfall / Flooding | Yes | Chemung River |
| Mar 19, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Mar 7, 2022 | 622K gal | Rainfall / Flooding | Yes | Chemung River |
| Mar 7, 2022 | 2.0M gal | Rainfall / Flooding | Yes | Chemung River |
| Mar 7, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Mar 7, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Feb 17, 2022 | — | Rainfall / Flooding | Yes | Chemung River |
| Feb 17, 2022 | 540K gal | Rainfall / Flooding | Yes | Chemung River |
| Nov 12, 2021 | 275K gal | Rainfall / Flooding | Yes | Chemung River |
| Nov 12, 2021 | 386K gal | Rainfall / Flooding | Yes | Chemung River |
| Nov 12, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Nov 12, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Oct 30, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Oct 30, 2021 | 1.4M gal | Rainfall / Flooding | Yes | Chemung River |
| Oct 30, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Oct 30, 2021 | 1.4M gal | Rainfall / Flooding | Yes | Chemung River |
| Oct 29, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Oct 29, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Oct 29, 2021 | 2.2M gal | Rainfall / Flooding | Yes | Chemung River |
| Oct 29, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Oct 29, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Oct 29, 2021 | 3.0M gal | Rainfall / Flooding | Yes | Chemung River |
| Oct 29, 2021 | 2.2M gal | Rainfall / Flooding | Yes | Chemung River |
| Oct 29, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Oct 29, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Oct 29, 2021 | 3.0M gal | Rainfall / Flooding | Yes | Chemung River |
| Oct 26, 2021 | 202K gal | Rainfall / Flooding | Yes | Chemung River |
| Oct 26, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Oct 26, 2021 | 741K gal | Rainfall / Flooding | Yes | Chemung River |
| Oct 26, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Oct 4, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Oct 4, 2021 | 384K gal | Rainfall / Flooding | Yes | Chemung River |
| Sep 23, 2021 | 219K gal | Rainfall / Flooding | Yes | Chemung River |
| Sep 23, 2021 | 134K gal | Rainfall / Flooding | Yes | Chemung River |
| Sep 23, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Sep 23, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Sep 15, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Sep 15, 2021 | 23K gal | Rainfall / Flooding | Yes | Chemung River |
| Sep 8, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Sep 8, 2021 | 6K gal | Rainfall / Flooding | Yes | Chemung River |
| Aug 18, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Aug 18, 2021 | 285K gal | Rainfall / Flooding | Yes | Chemung River |
| Aug 18, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Aug 18, 2021 | 6K gal | Rainfall / Flooding | Yes | Chemung River |
| Aug 17, 2021 | 66K gal | Rainfall / Flooding | Yes | Chemung River |
| Aug 17, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Aug 1, 2021 | 18K gal | Rainfall / Flooding | Yes | Chemung River |
| Aug 1, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Jul 29, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Jul 29, 2021 | 5K gal | Rainfall / Flooding | Yes | Chemung River |
| Jul 20, 2021 | 5.2M gal | Rainfall / Flooding | Yes | Chemung River |
| Jul 20, 2021 | 155K gal | Rainfall / Flooding | Yes | Chemung River |
| Jul 20, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Jul 20, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Jul 18, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Jul 18, 2021 | 50K gal | Rainfall / Flooding | Yes | Chemung River |
| Jul 17, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Jul 17, 2021 | 2.0M gal | Rainfall / Flooding | Yes | Chemung River |
| Jul 14, 2021 | 109K gal | Rainfall / Flooding | Yes | Chemung River |
| Jul 14, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Jul 11, 2021 | 179K gal | Rainfall / Flooding | Yes | Chemung River |
| Jul 11, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Jul 11, 2021 | 353K gal | Rainfall / Flooding | Yes | Chemung River |
| Jul 11, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Jul 6, 2021 | 29K gal | Rainfall / Flooding | Yes | Chemung River |
| Jul 6, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Jul 1, 2021 | 150K gal | Rainfall / Flooding | Yes | Chemung River |
| Jul 1, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| May 28, 2021 | 11K gal | Rainfall / Flooding | Yes | Chemung River |
| May 28, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| May 28, 2021 | 351K gal | Rainfall / Flooding | Yes | Chemung River |
| May 28, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| May 9, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| May 9, 2021 | 159K gal | Rainfall / Flooding | Yes | Chemung River |
| Apr 11, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Apr 11, 2021 | 2.4M gal | Rainfall / Flooding | Yes | Chemung River |
| Jan 15, 2021 | — | Rainfall / Flooding | Yes | Chemung River |
| Jan 15, 2021 | 27K gal | Rainfall / Flooding | Yes | Chemung River |
Source: New York (DEC). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.