25 Pa. Code § 289.272 - Inside slopes

Except for impoundments with concrete walls that are approved in the permit, the inside slopes of an impoundment shall be designed, constructed, operated and maintained as follows:

(1) An inside slope may not exceed a grade of 25%, except that the Department may approve slopes up to 33% based on a stability analysis.

(2) An inside slope shall be designed and constructed with sufficient protective cover to prevent wind and water erosion, and to preserve the structural integrity of the dike.

Notes

25 Pa. Code § 289.272

This section cited in 25 Pa. Code § 287.114 (relating to interim operational requirements for unpermitted processing or disposal facilities); 25 Pa. Code § 287.115 (relating to filing by permitted facilities); 25 Pa. Code § 287.116 (relating to interim operational requirements); 25 Pa. Code § 289.161 (relating to impoundment plan); and 25 Pa. Code § 299.144 (relating to operating requirements).