2012-10-29_PERMIT FILE - C1981014A (2)

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spill. It should be noted that EFCI does not utilize or produce any materials known to be toxic or hazardous in any mining, processing, or related operations. In addition, all facilities where fuel, lubricants, or liquid wastes are stored or utilized incorporate specific safety and containment provisions. In the event of a liquid spill, these measures would limit the spread of spilled liquid and facilitate effective cleanup operations. Specific control measures are described in greater detail in Section 2.05.3, Operation Plan -Permit Area, under the subtitle, "Mine Facilities". In the event of a liquid spill, EFCI will implement the specific control, reporting, and clean up measures described in the current SPCC Plan. These measures have been specifically designed to effect compliance with all applicable State and Federal regulations. SPalin4 Mine O~eninQS and Exploration or Other Boreholes Upon completion of mining, all underground openings including portals, drill holes, boreholes and wells will be permanently seated unless they are to be utilized in conjunction with ongoing monitoring or approved post-mining land uses. All of Southfield's mine portals were permanently sealed during reclamation activities as described below. The five (5) main facility portals and the south fan portal were permanently sealed upon completion of mining to prevent access and provide a hydrologic seal to prevent surface drainage from entering the underground workings. Mine portals were sealed by filling the entries with compacted, incombustible material for a distance of at least 25 feet in accordance with 30 CFR 75.1711. In order to ensure the long term integrity of the portal seals, EFCI left adequate barrier pillars in adjacent areas ,and utilized cribs and posts as necessary inby the portal seals to prevent significant caving which might affect the seals. Once the portal seals were constructed, the remaining portions of the mine entries between the portal seals and the portal openings were filled with overburden material and demolition debris in conjunction with subsequent backfilling activities. During construction of the main facility portal seals, one portal seal was equipped with a 4 inch drain pipe that extended along the mine entry to the mine portal and then vertically to the reclaimed surface. The intent of the drain 2.05.4-29 Revised 10/04/07 MR-55