25 Pa. Code § 77.351
Violations once identified by a State inspector or other appropriate official shall be corrected in a reasonable time, not to exceed 90 days, as prescribed by the Department. Additional time to achieve compliance may be granted if additional time is necessary to achieve the standards in the environmental acts and the act and regulations promulgated thereunder. The additional time may not be granted for reasons of financial hardship but only when additional time is essential for the achievement of the standards of environmental protection set forth in the environmental acts and the act and regulations thereunder. The utilization of this provision by the Department will not limit the Department from initiating another proceeding, penalty action or other action available to it under the environmental acts and the act and regulations thereunder. Other action may be initiated regardless of a violator's compliance with this section.
25 Pa. Code § 77.351