Section 335.120 - Containment for Waste PilesIf leachate or run-off from a pile is a hazardous waste, then either:
(1) the pile must be placed on an impermeable base that is compatible with the waste under the conditions of treatment or storage; 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 100-year storm; 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, 100-year storm; and 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;(2) the pile is managed such that:(A) the pile must be protected from precipitation and run-on by some other means; and(B) no liquids or wastes containing free liquids may be placed in the pile.30 Tex. Admin. Code § 335.120
The provisions of this §335.120 adopted to be effective May 28, 1986, 11 TexReg 2347.