All rankings
New York · New York (DEC)
Tonawanda (C) Sanitary Sewers
Permit NYS900015
F
Usually reaches water
Reported events
116
Total volume
101.0M gal
Reached waterways
98 (84%)
Reporting since
2020
What caused the overflows
Rainfall / Flooding
116
Reported overflow events (showing 116 of 116)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Mar 25, 2023 | 1.1M gal | Rainfall / Flooding | Yes | Ellicott creek |
| Mar 25, 2023 | 9K gal | Rainfall / Flooding | Yes | ellicott creek |
| Mar 17, 2023 | 1.6M gal | Rainfall / Flooding | Yes | Ellicott creek |
| Mar 17, 2023 | 15K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Mar 4, 2023 | 1.4M gal | Rainfall / Flooding | Yes | Ellicott creek |
| Mar 4, 2023 | 6K gal | Rainfall / Flooding | Yes | ellicott creek |
| Mar 3, 2023 | 1.4M gal | Rainfall / Flooding | Yes | Ellicott creek |
| Mar 3, 2023 | 8K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Feb 9, 2023 | 132K gal | Rainfall / Flooding | — | Two Mile Creek |
| Jan 4, 2023 | 35K gal | Rainfall / Flooding | Yes | Niagara river |
| Jan 4, 2023 | 1.6M gal | Rainfall / Flooding | Yes | Ellicott creek |
| Jan 4, 2023 | 148K gal | Rainfall / Flooding | — | Two Mile Creek |
| Dec 30, 2022 | 2.1M gal | Rainfall / Flooding | Yes | Ellicott creek |
| Dec 30, 2022 | 4K gal | Rainfall / Flooding | — | Two Mile Creek |
| Dec 23, 2022 | 1.0M gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Dec 15, 2022 | 6K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Dec 15, 2022 | 13K gal | Rainfall / Flooding | — | Two Mile Creek |
| Dec 15, 2022 | 607K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Nov 30, 2022 | 169K gal | Rainfall / Flooding | — | Two Mile Creek |
| Nov 30, 2022 | 1.7M gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Nov 30, 2022 | 85K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Nov 14, 2022 | 2.3M gal | Rainfall / Flooding | Yes | ellicott creek |
| Nov 14, 2022 | 18K gal | Rainfall / Flooding | Yes | ellicott creek |
| Nov 14, 2022 | 9K gal | Rainfall / Flooding | Yes | ellicott creek |
| Nov 11, 2022 | 295K gal | Rainfall / Flooding | — | Two Mile Creek |
| Nov 10, 2022 | 40K gal | Rainfall / Flooding | Yes | Niagara river |
| Oct 17, 2022 | 6K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Oct 17, 2022 | 620K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Oct 17, 2022 | 30K gal | Rainfall / Flooding | — | Two Mile Creek |
| Oct 13, 2022 | 9K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Oct 13, 2022 | 9K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Oct 13, 2022 | 32.6M gal | Rainfall / Flooding | Yes | Ellicott creek |
| Oct 13, 2022 | 39K gal | Rainfall / Flooding | — | Two Mile Creek |
| Sep 27, 2022 | 823K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Sep 25, 2022 | 45K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Sep 4, 2022 | 56K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Aug 25, 2022 | 6K gal | Rainfall / Flooding | Yes | ellicott creek |
| Aug 25, 2022 | 6K gal | Rainfall / Flooding | Yes | ellicott creek |
| Aug 24, 2022 | 463K gal | Rainfall / Flooding | Yes | ellicott creek |
| Aug 24, 2022 | 463K gal | Rainfall / Flooding | Yes | ellicott creek |
| Jul 18, 2022 | 738K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Jul 18, 2022 | 738K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Jun 22, 2022 | 1K gal | Rainfall / Flooding | — | Niagara River |
| Jun 8, 2022 | 120K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| May 21, 2022 | 183K gal | Rainfall / Flooding | Yes | Ellicott creek |
| May 21, 2022 | 3K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Apr 25, 2022 | 248K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Mar 23, 2022 | 236K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Feb 22, 2022 | 70K gal | Rainfall / Flooding | Yes | niagara river |
| Feb 22, 2022 | 607K gal | Rainfall / Flooding | Yes | ellicott creek |
| Feb 22, 2022 | 33K gal | Rainfall / Flooding | Yes | ellicott creek |
| Feb 22, 2022 | 70K gal | Rainfall / Flooding | — | Two Mile Creek |
| Feb 22, 2022 | 18K gal | Rainfall / Flooding | — | Niagara River |
| Feb 21, 2022 | 3.6M gal | Rainfall / Flooding | Yes | ellicott creek |
| Feb 17, 2022 | 33K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Feb 17, 2022 | 341K gal | Rainfall / Flooding | — | Niagara River |
| Feb 17, 2022 | 108K gal | Rainfall / Flooding | — | Two Mile Creek |
| Feb 17, 2022 | 100K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Feb 17, 2022 | 7.2M gal | Rainfall / Flooding | Yes | Ellicott creek |
| Feb 17, 2022 | — | Rainfall / Flooding | Yes | Ellicott Creek |
| Feb 17, 2022 | 62K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Feb 17, 2022 | 180K gal | Rainfall / Flooding | Yes | Niagara River |
| Feb 11, 2022 | 9K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Feb 11, 2022 | 7.0M gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Feb 11, 2022 | 20K gal | Rainfall / Flooding | Yes | Niagara River |
| Feb 2, 2022 | 8K gal | Rainfall / Flooding | Yes | Ellicott creekl |
| Dec 11, 2021 | 110K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Nov 15, 2021 | 1.7M gal | Rainfall / Flooding | Yes | Ellicott creek |
| Nov 15, 2021 | 1K gal | Rainfall / Flooding | — | Two Mile Creek |
| Oct 29, 2021 | 60K gal | Rainfall / Flooding | Yes | Niagara River |
| Oct 29, 2021 | 15K gal | Rainfall / Flooding | Yes | ellicott creek |
| Oct 29, 2021 | 1.7M gal | Rainfall / Flooding | Yes | ellicott creek |
| Oct 29, 2021 | 60K gal | Rainfall / Flooding | Yes | Niagara River |
| Oct 29, 2021 | 20K gal | Rainfall / Flooding | — | Two Mile Creek |
| Oct 29, 2021 | 15K gal | Rainfall / Flooding | Yes | ellicott creek |
| Oct 29, 2021 | 1.7M gal | Rainfall / Flooding | Yes | ellicott creek |
| Oct 18, 2021 | 120K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Oct 4, 2021 | 1.5M gal | Rainfall / Flooding | Yes | Ellicott creek |
| Oct 4, 2021 | 1.5M gal | Rainfall / Flooding | Yes | Ellicott creek |
| Sep 22, 2021 | 18K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Sep 22, 2021 | 18K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Sep 22, 2021 | 2.5M gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Sep 12, 2021 | 6K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Sep 12, 2021 | 6K gal | Rainfall / Flooding | Yes | Canal |
| Sep 12, 2021 | 825K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Sep 8, 2021 | 91K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Aug 29, 2021 | 808 gal | Rainfall / Flooding | — | Niagara River |
| Aug 29, 2021 | 600K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Aug 29, 2021 | 9K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Aug 29, 2021 | 9K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Aug 29, 2021 | 600K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Aug 28, 2021 | 1K gal | Rainfall / Flooding | — | Niagara River |
| Aug 8, 2021 | 4K gal | Rainfall / Flooding | — | Niagara River |
| Jul 18, 2021 | 150K gal | Rainfall / Flooding | Yes | Niagara river |
| Jul 18, 2021 | 25K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Jul 18, 2021 | 45K gal | Rainfall / Flooding | Yes | ellicott creek |
| Jul 18, 2021 | 125K gal | Rainfall / Flooding | Yes | ellicott creek |
| Jul 18, 2021 | 6.2M gal | Rainfall / Flooding | Yes | ellicott creek |
| Jul 18, 2021 | 150K gal | Rainfall / Flooding | Yes | Niagara river |
| Jul 18, 2021 | 6.2M gal | Rainfall / Flooding | Yes | ellicott creek |
| Jul 18, 2021 | 125K gal | Rainfall / Flooding | Yes | ellicott creek |
| Jul 18, 2021 | 45K gal | Rainfall / Flooding | Yes | ellicott creek |
| Jul 18, 2021 | 25K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Jul 13, 2021 | 492K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Jul 8, 2021 | 9K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Jul 8, 2021 | 20K gal | Rainfall / Flooding | Yes | Niagara River |
| Jul 8, 2021 | 113K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Jul 7, 2021 | 975K gal | Rainfall / Flooding | Yes | Ellicott Creek |
| Jul 5, 2021 | 6K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Jul 5, 2021 | 15K gal | Rainfall / Flooding | Yes | Ellicott creek |
| Mar 28, 2021 | 130K gal | Rainfall / Flooding | Yes | ellicott creek |
| Jan 1, 2021 | 60K gal | Rainfall / Flooding | Yes | ellicott creek |
| Jan 1, 2021 | 18K gal | Rainfall / Flooding | Yes | ellicott creek |
| Dec 30, 2020 | 24K gal | Rainfall / Flooding | Yes | Two Mile Creek |
| Nov 30, 2020 | 40K gal | Rainfall / Flooding | Yes | niagara river |
| Nov 30, 2020 | 8K gal | Rainfall / Flooding | Yes | ellicott creek |
Source: New York (DEC). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.