Section R. 29.2129 - Reporting of suspected releasesRule 29. Section 280.50 is amended to read as follows:
Section 280.50. O/Os of UST systems, or a person who is employed by the O/O, shall report to the department in a manner specified in section 280.61 and follow the procedures specified in section 280.52 when any of the following conditions occur:
(a) The discovery by owners, operators or others of released regulated substances at the UST site or in the surrounding area, such as the presence of visible NAPL or vapors in soils, basements, sewer and utility lines, and nearby surface water.(b) Unusual operating conditions observed by owners and operators, such as the erratic behavior of product dispensing equipment, the sudden loss of product from the UST system, or any unexplained presence of water in the tank, or liquid in the interstitial space of secondarily contained systems, unless system equipment or component is found not to be releasing regulated substances to the environment; any defective system equipment or component is immediately repaired or replaced; and for secondarily contained systems, except as provided for in paragraph 280.43(g)(2)(iv), any liquid in the interstitial space not used as part of the interstitial monitoring method, for example, brine filled, is immediately removed.(c) Monitoring results, including investigation of an alarm, from a release detection method required under sections 280.41 and 280.42 that indicate a release may have occurred, unless either of the following conditions is satisfied: (1) The monitoring device is found to be defective and is immediately repaired, recalibrated, or replaced and additional monitoring does not confirm the initial result.(2) The leak is contained in the secondary containment and both of the following are met: (i) Except as provided for in paragraph 280.43(g)(2)(iv), any liquid in the interstitial space not used as part of the interstitial monitoring method, such as brine filled, is immediately removed.(ii) Any defective system equipment or component is immediately repaired or replaced.(3) In the case of inventory control, described in subsection 280.43(a), a second month of data does not confirm the initial result or the investigation determines no release has occurred.(4) The alarm was investigated and determined to be a non-release event, for example, from a power surge or caused by filling the tank during release detection testing.(d) A person who is employed by the O/O may do the reporting on behalf of the O/O; however, the O/O has the final responsibility to make sure the report is made.Mich. Admin. Code R. 29.2129
1998-2000 AACS; 2018 MR 21, Eff. 11/14/2018