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• Prepared%ar. <br />TWENTYMILE COAL COMPANY <br />29527 Routt County Road #27 <br />Oak Cteek, CO 80467 <br />DRAFT <br />POND D <br />HYDROLOGIC EVALUATION <br /> <br />1\Iav 1999 <br />Prepared f>>r <br />Dtontgomen~ \C'atson Mining Group <br />• 1Gi S. Union Boulevard, Suite 410 <br />Lakewood, Colorado 80228 <br />D-2 <br />