25 Pa. Code § 289.457
The operator shall immediately notify the Department and describe remedial steps to be taken if:
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 § 289.413 (relating to leachate treatment plan); 25 Pa. Code § 289.414 (relating to modification of leachate treatment plan); 25 Pa. Code § 289.421 (relating to basic limitations); and 25 Pa. Code § 289.451 (relating to scope).