§ 77.655. Closing of underground mine openings.
(a) Mine openings.
(1) Upon completion of mining, a mine opening, except those approved for water monitoring or otherwise managed in a manner approved by the Department, shall be closed:
(i) To prevent degradation of surface waters and groundwaters.
(ii) To assist in returning the groundwater as near to its premining level as possible.
(iii) To assist in returning the hydrologic balance as near to its premining condition as possible.
(iv) To ensure the safety of people.
(v) To prevent access to underground workings.
(2) Prior to closing a mine opening, the plan for the closing shall be approved by the Department.
(b) Inactive mine openings. During operation of a mine, a mine opening that becomes inactive and has no further use shall be immediately closed under subsection (a).
(c) Temporarily inactive mine openings. Temporarily inactive mine openings shall be closed to ensure the safety of people, livestock, fish and wildlife.
Source The provisions of this § 77.655 adopted March 16, 1990, effective March 17, 1990, 20 Pa.B. 1643; amended August 18, 2023, effective August 19, 2023, 53 Pa.B. 5159. Immediately preceding text appears at serial page (360571).
Cross References This section cited in 25 Pa. Code § 77.456 (relating to reclamation information).
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