Containment

Section 725 Section 725.353  Containment If leachate or run-off from a pile is a hazardous waste, then control of the leachate or run-off must be accomplished by either of the following means: a)         Control by Pile Design, Construction, and Operation 1)         The pile must be placed on an impermeable base that is compatible with the waste under the conditions of treatment or storage; 2)         The owner or operator must design, construct, operate and maintain a run-on control system capable of preventing flow onto the active portion of the pile during peak discharge from at least a 25-year storm; 3)         The owner or operator must design, construct, operate and maintain a run-off management system to collect and control at least the water volume resulting from a 24-hour, 25-year storm; and 4)         Collection and holding facilities (e.g., tanks or basins) associated with run-on and run-off control systems must be emptied or otherwise managed expeditiously to maintain design capacity of the system; or b)         Alternative Control 1)         The pile must be protected from precipitation and run-on by some other means; and 2)         No liquids or wastes containing free liquids may be placed in the pile. BOARD NOTE:  If collected leachate or run-off is discharged through a point source to waters of the United States, it is subject to the requirements of Section 12 of the Act.