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1 <br />buildings are planned. <br />' 6. Dimensions of Significant Disturbance <br />CCCM estimates that approximately 1.0 acre of land will be <br />impacted at the Bates-Hunter mine site. Approximately 2.5 acres <br />of land will be impacted at the Golden Gilpin mill site. In all, <br />CCCM erstimates that approximately 3.5 acres will be impacted by <br />the activities being permitted under this application. <br />7. Roads <br />No new roads are being permitted under this plan. <br />8. Water Requirements <br />' It is estimated that approximately 7,000 gallons per day will be <br />required to operate the Golden Gilpin mill. However, 80% or <br />5,600 gallons of this water will be circulated back to the mill <br />' for re-use from Pond 4. <br />9. Ground and Surface Water Impacts <br />At the Bates-Hunter mine, the existing underground workings will <br />be de-watered so that development can continue. It is presently <br />estimated that water will be pumped at a rate of 400 gallons per <br /> minute from the mine when de-watering. Once the mine is de- <br />' watered, the mine is reported to be mak ing approximately 125 <br /> gallor.~ per minute. Ho wever, the water is primarily coming from <br /> the 500 level of the mine. CCCM intends to construct bulkheads <br />' to eliminate the water from this source which may completely <br /> eliminate any water discharge from the Bates-Hunter mine. <br /> Regardless, the worst case water discharge from the Bates-Hunter <br />' mine Nrill be 125 gallons of water per minute. <br />Water discharged from the Bates-Hunter mine will be treated in a <br />' two stage process prior to being discharged into Gregory Gulch <br />(Figures 2 and 8). First, the mine water discharge will flow <br />through a peat and sawdust filter to remove dissolved metals. <br />Secondly, the mine water discharge will flow down a stair <br />' steppEad, limestone loaded flume that will aerate and adjust the <br />pH of the mine water to 6 to 7 prior to discharge (Figure 7). <br />' At the Golden Gilpin mill, no ground water will be disturbed. <br />The Golden Gilpin mill will required approximately 7,000 start up <br />gallons of water. Thereafter, the mill will circulate <br />' appro:timately 80% of the mill water discharge from Pond 4 back to <br />the m:Lll circuit for re-use. <br />The remaining 15 to 20% of the mill water will be discharge into <br />' North Clear Creek after undergoing a two stage filter process. <br />First, the mill water discharge will flow through a peat filter <br />to remove dissolved metals. Secondly, the mill water discharge <br />' will have its pH adjusted to 6 to 7 prior to discharge. <br />' C 4 <br />