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• following disucssion of tirosion and Sedimentation). Sta~::- <br /> water ponds could be constructed providad ehut the bottoms <br />were sealed with chemicals or ben wnite to minimice see~a_;e <br />losses. ~:orcover, stocl: ponds could be built in adjacent <br />areas or drainages not disturbed by mining. <br />~' Equally important, the re-establish:r.ent plan[ cover must <br />include sufficient deep-rooted species to intercept water <br />that has moved below the reach of most grasses and iorbs <br />so as to return [his water to the surface where it can be <br />1 <br />1 <br />transpired. <br />Inclusion. of these conditions probably would not prevent <br />all leaching in the mined areas, but [he increased load to <br />the Colorado Rive- probably would be reduced by r.,ore than <br />75 percent. If so, mining on the subject tracts should <br />have no greater impact on the Colorado River water than <br />comparable coal mining operations anywhere else in this <br />region. <br />8. Surface water <br />No additional mitigating measures are recommended beyond <br />those restricting [he ponding of water on proposed leases <br />C-22644 and C-26913 as described above and the measures to <br />control erosion described in the following section. <br />Virtually all impacts on the surface-water system would be <br />mitigated by enforcement o: provisions of the Surface <br />Mining Reclamation and Enforcement net set forth in <br />Regulations 30 CFR 700. <br />146 <br /> <br />