Rule 57. Section 280.73 is amended to read as follows: Section 280.73. When directed by the department, the O/O of an UST system that was permanently closed before the effective date of these rules shall assess the excavation zone and close the UST system in accordance with this subpart if suspected or confirmed releases from the UST system, in the judgment of the department, may pose a current or potential threat to human health and the environment.
Mich. Admin. Code R. 29.2157