Effective May 16, 202347 Ill. Reg. 7581AUTHORITY: Implementing and authorized by Sections 5, 14.4, 21, 22, and 27 of the Environmental Protection Act [415 ILCS 5/5, 14.4, 21, 22, and 27].POLLUTION CONTROL BOARD
a) Deterioration, malfunctions or improper operation of overtopping control systems;
b) Sudden drops in the level of the impoundment's contents;
c) Severe erosion or other signs of deterioration in dikes or other containment devices; or
d) A leaking dike.
During operation, a surface impoundment must be inspected weekly and after storms to detect evidence of any of the following:
(Source: Amended at 47 Ill. Reg. 7581, effective May 16, 2023)