Tanks

​Underground Storage Tank Program

Tank statistics
​Number of tanks with operating permits* ​4,941
Number of new tanks installed from 12/22/88 - present ​3,673
Number of tanks with upgrades/retrofits
​1,268
​Number of out-of-service tanks** ​453
​Number of tanks in service with operating permits and out of service ​5,394
​Number of permanently decommissioned tanks ​27,470
​Percentage of tanks with operating permits ​91.60%
Facility statistics
​Number of facilities with operating permits ​1,591
​Number of facilities with out-of-service tanks ​182
​Number of facilities with operating permits and out-of-service tanks ​1,773
​Percentage of facilities with operating permits ​89.73%
Note:
* 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. These tanks were required to permanently decommission by 12/22/99.

Leaking Underground Storage Tank Program

Total releases
​Number of releases reported ​52,357
​Number of cleanups initiated29,986
​Number of cleanups completed ​45,555
Regulated releases
​Number of releases reported ​7,788
​Number of cleanups initiated ​7,515
​Number of cleanups completed ​7,002
Unregulated releases including heating oil tanks
​Number of releases reported ​44,569
​Number of cleanups initiated ​22,471
​Number of cleanups completed38,553
Heating oil tank releases
​Number of releases reported ​43,567
​Number of cleanups completed ​37,721
Data updated July 2021