Reported releases
3,882 releases are on file, across 2,561 facilities. The most recent was reported on 2026-08-13.
What a reported release is
A report that something left a tank or its pipework. The file records the substance, where it came from and what caused it. It does not record how much, where it went, or what was done about it — and a report is the beginning of a case, not a verdict on a property.
By year reported
| Reported in | Releases | Share |
|---|---|---|
| 2026 | 35 | 0.9% |
| 2025 | 27 | 0.7% |
| 2024 | 33 | 0.9% |
| 2023 | 47 | 1.2% |
| 2022 | 56 | 1.4% |
| 2021 | 65 | 1.7% |
| 2020 | 104 | 2.7% |
| 2019 | 100 | 2.6% |
By recorded cause
| Cause | Releases | Share |
|---|---|---|
| Unknown | 2,655 | 68.4% |
| Physical/Mechanical Damage | 581 | 15.0% |
| Corrosion | 289 | 7.4% |
| Overfill | 254 | 6.5% |
| Other; Unknown | 28 | 0.7% |
| Overfill; Physical/Mechanical Damage | 22 | 0.6% |
| Other | 17 | 0.4% |
| Spill | 16 | 0.4% |
| Installation Problems | 7 | 0.2% |
| Corrosion; Overfill | 6 | 0.2% |
The causes are the state’s own wording. They are worth reading for what they suggest about how tanks actually fail — far more often a fitting, a delivery or a piece of equipment than a dramatic rupture.
Which facility
2,561 facilities have at least one. This site does not publish that list: 2,561 addresses under a heading like « releases » would be read as a verdict on each one, and the file does not support it. The count is here, the distribution is here, and the individual record is one search away — with its dates, which is what makes it readable.
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