1. A. When directed by the Department, an owner and an operator of a storage tank system and a responsible party shall follow the investigation and confirmation procedures in Regulation .03 of this chapter to determine if the storage tank system or another source under the control of the owner and the operator of the storage tank system or the responsible party is the source of off-site impacts that have been:

   1. (1) Observed by the Department; or
   2. (2) Brought to the Department’s attention by another party.

2. B. The off-site impacts subject to an investigation under §A of this regulation include, but are not limited to:

   1. (1) Dissolved product in groundwater;
   2. (2) Absorbed product in soils;
   3. (3) Free product in soils, a basement, a sewer or utility line, or waters of the State; and
   4. (4) Vapors in soils, a basement, a sewer or utility line, or waters of the State.

Authority: Environment Article, §§4-401, 4-402, 4-405, 4-407, 4-408, 4-410—4-411.1, 4-417, and 7-201 et seq., Annotated Code of Maryland

Effective date: February 4, 1991 (18:2 Md. R. 151)

Chapter revised effective November 4, 1996 (23:22 Md. R. 1498)

Regulation .03C amended effective February 18, 2002 (29:3 Md. R. 224); January 16, 2006 (33:1 Md. R. 40)

Regulations .01—.04 repealed and new Regulations .01—.04 adopted effective June 13, 2022 (49:12 Md. R. 642)