When directed by the Department, an owner and an operator of a UST system with a field-constructed tank or an airport hydrant system that was permanently closed before June 13, 2022 shall assess the excavation zone and permanently close the UST system in accordance with COMAR 26.10.10 if a spill, release, or discharge from the UST system may, in the judgment of the Department, pose a current or potential threat to human health and the environment.

Authority: Environment Article, §§4-401, 4-402, 4-405, 4-407—4-411.2, 4-415.1, 4-417, 4-701 et seq., and 7-201 et seq., Annotated Code of Maryland

Effective date: February 15, 1993 (20:3 Md. R. 259)

Regulation .01 amended effective February 18, 2002 (29:3 Md. R. 224)

Regulation .04F amended effective December 6, 1993 (20:24 Md. R. 1865); July 15, 1996 (23:14 Md. R. 1011)

Regulation .04G amended effective July 15, 1996 (23:14 Md. R. 1011)

Regulation .05C, D amended effective December 6, 1993 (20:24 Md. R. 1865)

Regulation .06D amended effective July 15, 1996 (23:14 Md. R. 1011)

Regulation .07B amended effective July 15, 1996 (23:14 Md. R. 1011)

Regulation .08A, B amended effective December 6, 1993 (20:24 Md. R. 1865)

Regulations .01—.15 repealed and new Regulations .01—.07 adopted effective June 13, 2022 (49:12 Md. R. 642)