ADDITIONAL OPERATING REQUIREMENTS—
LINER SYSTEM
§ 289.531. Scope and requirements.
(a) A person or municipality operating a Class II residual waste disposal impoundment shall design, construct, operate and maintain a liner system for disposal areas of the facility or components thereof in accordance with this section and § § 289.532—289.538.
(b) The liner system for a Class II residual waste disposal impoundment shall include the following elements:
(1) The subbase, which is the prepared layer of soil or earthen material upon which the remainder of the liner system is constructed.
(2) The leachate detection zone, which is a prepared layer placed on top of the subbase and upon which the liner is placed, and in which a leachate detection system is located.
(3) The composite liner, which is a continuous layer of synthetic material over earthen material, placed on the leachate detection zone.
(4) The protective cover and leachate collection zone, which is a prepared layer placed over the liner in which a leachate collection system is located.
Cross References This section cited in 25 Pa. Code § 287.114 (relating to interim operational requirements for unpermitted processing or disposal facilities); 25 Pa. Code § 287.116 (relating to interim operational requirements); 25 Pa. Code § 289.512 (relating to liner system and leachate control plan); and 25 Pa. Code § 289.521 (relating to limitations).
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