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recovered groundwater elevation, no surface discharge from the North Portal Mine is projected
<br />following reclamation, and thus no provisions were made for discharge from the North Mine following
<br />reclamation.
<br />Exploration drill holes, boreholes, or wells not completed in an aquifer will be sealed by replacing
<br />cuttings in the hole and placing a cement plug in the top of the hole from ten feet down to within three
<br />feet of the ground surface. The South Fan shaft was sealed in this manner in the fall of 2000.
<br />If a hole is completed in an aquifer, it will be sealed by placing an approved cement or sealant in the
<br />hole from the bottom to within ten feet of the ground surface, a cement plug will be placed in the
<br />upper ten feet.
<br />Figure 14-2 illustrates typical permanent mine seals, and Figure 14-3 depicts a typical "dry hole"
<br />permanent drill hole seal.
<br />V. Disposal of Debris, Acid-Forming, and Toxic-Forming Materials
<br />The coal refuse material to be disposed of during mining operations is not considered combustible,
<br />physically unstable, or acid-toxic forming. Chemical and physical analysis for this material is
<br />contained in Figure 6-2. Refuse separated from the raw coal mined will be placed in the refuse
<br />disposal areas described in Section 2.05.3(8), Tab 13. See Section VI, below.
<br />Non-coal wastes, including flammable liquids, paints, garbage, and lumber are collected by a refuse
<br />removal service and disposed of in a local landfill according to applicable regulations governing such
<br />waste disposal. Petroleum products such as grease, lubricants and machine oil are collected by a
<br />licensed pickup service for refinery recycling. See Tab 9, page 14-28 and 14-29 of the permit
<br />application document. Non-coal waste materials have largely been removed from mine facility areas in
<br />association with reclamation projects during 2001 and 2002.
<br />VI. Coal Mine Waste and Non-Coal Processina Waste
<br />Information on coal processing waste and coal processing waste embankments can be found in Section
<br />2.05.3(8), Tab 13, of Volume 3 of the application.
<br />Three permitted refuse piles, CRDA-1, CRDA-2, and RSRDA, have been constructed to the
<br />specifications outlined in Tab 13 text, and in Appendices 13-4, 13,5 and 13-6 of the permit. See
<br />Exhibits 4, 5, 9A, 913, 18, 51, 52, 53 and 55, for further information. Reclamation of the refuse
<br />disposal areas is addressed in various sections of Tab 14, Volume 5, of the permit application, and
<br />reclamation specifications are depicted on Exhibits 6C, 9C, 26, and 18.
<br />During mine operations, raw coal was processed at the preparation plant that was located within the
<br />Roadside South facilities area, and clean coal was conveyed to a unit train loadout facility on the
<br />opposite side of the river, approximately a mile to the north. The reject material was transported by
<br />truck to the disposal sites in Coal Canyon (or the RSRDA pile prior to 1981). CRDA-2 has been fully
<br />reclaimed, and CRDA-1 has been reclaimed with the exception of a segment of temporary road up the
<br />side of the pile that has been left open to allow for disposal of coaly material during the course of
<br />Permit Renewal No. 5 37 November 16, 2007
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