1501:14-3-05 Underground water supplies.

To insure that contamination, resulting from mining, of underground water supplies is prevented, the operator shall comply with the following conditions and requirements:

(A) Promptly seal all auger holes with non-acid producing, impervious material to a compacted depth of four (4) feet above the top of the mineral or coal seam, which seal shall be maintained until the auger hole is permanently sealed as approved in the Mining and Reclamation Plan; provided, that auger holes which are not located near the base of the highwall are not required to be sealed;

(B) Cover any acid producing materials located in the bottom of the pit and any coal seam located near the base of the highwall with non-acid producing material to a minimum depth of three (3) feet;

(C) Seal all shafts, boreholes, wells and other openings which are intercepted during mining in such a manner that contamination of underground water supplies shall be prevented; and

(D) When underground mines are intercepted and the operator does not intend to mine the underground works, such opening shall be sealed with compacted, impervious materials to a depth of three times the greater dimension of the opening unless otherwise approved in an amended Mining and Reclamation Plan. Such seal shall be inspected and approved by the Chief or his representative before backfilling the area.

HISTORY: (former NRim-III-05); Eff 3-24-75

Rule promulgated under: RC Chapter 119.

Rule authorized by: RC 1514.08

119.032 Review Date: 10-4-02; 10-4-07