Michigan Administrative Code
Department - Licensing and Regulatory Affairs
Bureau of Fire Services
Underground Storage Tank Regulations. R 29.2101-29.2192
AMENDMENTS TO ADOPTED FEDERAL REGULATIONS
Subpart E - RELEASE REPORTING, INVESTIGATION, AND CONFIRMATION
Section R. 29.2131 - Release investigation and confirmation steps
Current through Vol. 24-16, September 15, 2024
Rule 31. Section 280.52 is amended to read as follows:
Section 280.52. Unless corrective action is initiated in accordance with subpart F of these rules and part 213 of 1994 PA 451, MCL 324.21301a to 324.21334, owners and operators shall immediately investigate and confirm all suspected releases of regulated substances requiring reporting under section 280.50, within 7 days or within another reasonable time period specified by the implementing agency, using either of the following steps or another procedure approved by the department:
(a) System test. Owners and operators shall conduct tests, according to the requirements for tightness testing in sections 280.43(c) and 280.44(b), or as appropriate, secondary containment testing described in subsection 280.33(d).
(b) Site check. Owners and operators shall measure for the presence of a release where contamination is most likely to be present at the UST site. In selecting samples types, sample locations, and measurement methods, owners and operators shall consider the nature of the stored substance, the type of initial alarm or cause for suspicion, the type of backfill, the depth of groundwater, and other factors appropriate for identifying the presence and source of the release. If the test results for the excavation zone or the UST site indicate that a release has occurred, O/Os shall begin corrective action in accordance with subpart F of these rules and part 213 of 1994 PA 451, MCL 324.21301a to 324.21334. If the test results for the excavation zone or the UST site do not indicate that a release has occurred, then further investigation is not required.
