1994-02-17_GENERAL DOCUMENTS - M1977451

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Cotter Corporation - C-SR-11 Mine Stormwater Management Plan - Permit # COR-040029 February 14, 1994 - Page 2 The unreclaimed mine dumps and pits are listed below: • Ike #I A dump .21 acres • Ike #2 dump .18 acres • Ike #3 dump .15 acres • Ike #4 dump .32 acres • Radium 8 pit .20 acres • Radium 8 dumps 1.28 acres • Brighton dump .81 acres • Tomboy dump .17 acres • Mercantile dumps .07 and .46 acres • Emma Lou dump .15 acres • Beth pit .27 acre • Beth dump .09 acres. Potential pollutants from fine dumps include sed ments associated with non on grade Uranium/Vanadium waste rock piles. Access Roads - The main access roads are County roads P-4, P-4.5 and 4-Q. The access l road for Ike #1 and Radium 8 is the same road, which begins at the end of County road P-4.5 and is 1500 feet long (.55 acres). The access road for Ike N2 is County Road 4-P. The access road for the Ike N3 Mine site is 400 feet long. This road is entered via County Road 4-Q (. 14 acres.) The access road for Ike N3, Ike #4 and the Brighton is the same access. road. This road is 2400 feet long and is entered via County Road 4-Q (.88 acres.) The Tomboy, Mercantile, Emma Lou and Beth sites are accessed by one access road. This road begins at the end of County Road 4-Q and is 1700 feet long (.62 acres.) Potential pollutants on the access roads include sediment from the road surface which is constructed of gravel and native soils. Ore spillage is minimal. Top Soil Storage Areas - The Ike N2 topsoil storage area is .08 acres. The Ike #3 top soil storage area is .04 acres. The extensive vegetative coverage, flat gradient, and porous soils allow precipitation to infiltrate into the soil and preclude stormwater runoff. Vent Hole - The vent hole associated with the Ike No. 1 mine was assessed and there is no appreciable run off from this location.