Owners and/or operators of aboveground storage tank systems who do not intend to use the tanks for fuel storage in the future must close the tank systems after they have been out of service for more than twelve (12) months by performing the following:
- (1) Empty, clean, purge and vapor free the tank of all flammable products and vapors.
- (2) Separate the piping from the tank. All underground piping and ancillary equipment must be removed unless a Commission order grants a variance.
- (3) Perform a site assessment pursuant to OAC 165:26-2-214, "Assessing the site at tank closure or change in service".
- (4) A licensed AST Remover must be on site at all times during the removal of an aboveground storage tank and/or lines.
- (5) All UST's currently being used as AST's must be destroyed upon closure. A certificate of destruction must be included with the AST Closure Report and submitted to PSTD within forty-five (45) days of closure.
Added at 21 Ok Reg 2079, eff 7-1-04
Amended at 22 Ok Reg 1752, eff 7-1-05
Amended at 35 Ok Reg 1010, eff 10-1-18
Amended at 36 Ok Reg 576, eff 8-1-19
Amended at 40 Ok Reg 1797, eff 10-1-23
Amended at 41 Ok Reg, Number 23, effective 10-1-24