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|Land Quality
Tanks
Underground Storage Tanks and Leaking Underground Storage Tank Program Statistics
Latest Update: January 2012
Underground Storage Tank Program
| Tank Statistics | ||
| Number of tanks with operating permits* | 5,199 | |
| Number of new tanks installed from 12/22/88 - present | 3,458 | |
| Number of tanks with upgrades/retrofits | 1,741 | |
| Number of out-of-service tanks** | 542 | |
| Number of tanks in service with operating permits and out of service | 5,741 | |
| Number of permanently decommissioned tanks | 26,244 | |
| Percentage of tanks with operating permits | 90.56% | |
| Facility Statistics | ||
| Number of facilities with operating permits | 1,744 | |
| Number of facilities with out-of-service tanks | 210 | |
| Number of facilities with operating permits and out-of-service tanks | 1,954 | |
| Percentage of facilities with operating permits | 89.25% | |
- Notes:
* Only tanks with operating permits are authorized to receive fuel.
** Tanks without operating permits are not authorized to receive fuel and are out of service including tanks in temporary closure.
Leaking Underground Storage Tank Program
| Total Releases | |
| Number of releases reported | 38,196 |
| Number of cleanups initiated | 29,171 |
| Number of cleanups completed | 31,619 |
| Regulated Releases | |
| Number of releases reported | 7,285 |
| Number of cleanups initiated | 6,996 |
| Number of cleanups completed | 6,292 |
| Unregulated Releases*** | |
| Number of releases reported | 745 |
| Number of cleanups completed | 612 |
| Heating Oil Tank Releases | |
| Number of releases reported | 30,166 |
| Number of cleanups completed | 24,715 |
Note: *** Does not include HOTs.
For more information about DEQ's Land Quality programs, visit the DEQ contact page.
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