Ill. Admin. Code tit. 35, § 725.274
At least weekly, the owner or operator must inspect areas where containers are stored. The owner or operator must look for leaking containers and for deterioration of containers caused by corrosion or other factors. See Section 725.171 for remedial action required if deterioration or leaks are detected.
(Source: Amended at 42 Ill. Reg. 23725, effective November 19, 2018)