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• SUMMARY OF COALDALE MINING PLAN BY AREA <br />(Refer to Exhibit C -Mine Plan Map for Locations) <br />Copper Hill North <br />Mining of gypsum will begin in this area, which is located on the far west end of <br />the Affected Land area. The gypsum faces will proceed from the northeast <br />comer of this area towards the south and west on a 30 foot bench. Once this <br />level has been mined out a second bench will be developed for maximum <br />extraction utilizing the same sequence. Any gypsum beyond the second level <br />will be recovered with a backhoe. <br />Once this area has been completely mined out it is planned chat this area will be <br />backfilled with overburden and mine run material (screenings) from the crushing <br />process. <br />Copper Hill South <br />• Copper Hill South will be mined concurrently with Copper Hill North as a blend <br />will be required for optimizing the process and maximizing the utilization of the <br />gypsum deposit. The mining face will proceed from the northeastern corner and <br />proceed to the west maintaining a safe distance ftom the existing highwall <br />immediately to the south. <br />Senators Pit <br />The Senators Pit will be developed and mined once the Copper Hill North is <br />exhausted and ready for backfilling. Mining will proceed from the southeast end <br />and proceed to the northwest. It is planned that there will be approximately four <br />(4) benches of 30 feet each in this area. The first three (3) benches will be mined <br />with drill and blast methods and front end loader and haul truck. The final bench <br />will be mined from west to east through the use of a badchoe and haultrucks. <br />Areas mined out on the final bench will be badcfilled as the face progresses to <br />the east. <br />Stockpile Area <br />Recent reGamation of the Stockpile Area floor will be disturbed as growing <br />medium will be moved and re-stockpiled in preparation for final product <br />