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-24- <br />TABLE 3 <br />SURFACE WATER CHARACTERISTICS OF THE CHIS AREA <br />Site F ow Specific SAR Bicarb. TDS TSS <br />cfs Cond. mg/1 mg/1 mg/1 <br /> umhos/cm <br />min min min min min min <br />max max max max max max <br />mean mean mean mean mean mean <br />Colo.River at 2,300 210 0.5 84 120 N/A <br />Glenwood Springs 26,900 1,260 4 160 580 N/A <br />83 water yr 4,969 740 3 130 427 N/A <br />Colo.River 1,200 346 1.0 N/A 197 45 <br />near De Bequel 32,000 1,190 4 N/A 718 2600 <br />83 water yr 5,827 779 2.5 N/A 472 724 <br />Storm King Closed System -- No Effluent Proposed <br />Mines <br />Harvey Gap2 0.7 600 0.2 207 3713 10 <br />66 730 0.6 386 1,054 26 <br />N/A 670 N/A NJA N!A N/A <br />1 Chemistry from 82 water year, 83 not available <br />2 From East side Mines Permit Application C-84-063 <br />3 From PHC predictions of Eastside Mine <br />The alluvial bodies are not laterally continuous through the length of the <br />Colorado River, but are dissected by meanderings of the Colorado and by the <br />narrow flood plain of the Colorado River across the Grand Hogback Monocline. <br />The surface facilities of the Coal Ridge No. 1 Mine are east of the outcrop of <br />the Grand Hogback, and on the south side of the Colorado River. The alluvial <br />body present at the confluence of Harvey Gap and the Colorado River is on the <br />north side of the Colorado River and to the west of the Grand Hogback <br />outcrop. Therefore, these two alluvial bodies are not continuous. However, <br />due to the relationship between the waters of the alluvial bodies and the <br />Colorado River, there is a potential that impacts to the alluvium could be <br />cumulative between the mines. <br />