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ENGINEERING AND ENVIRONMENTAL DIVISION <br />1475 PINE GROVE ROAD, SUITE 109 <br />P.O. BOX 774018 <br />STEAMBOAT SPRINGS, CO 80477 <br />July 30, 1985 <br />Mr. Richard Wright <br />Twentymile Coal Company <br />29515 County Road 27 <br />P.O. Box 897 <br />Oak Creek, CO 80467 <br />Re: Redesign of Sedimentation Pond E <br />Dear Richard: <br />Enclosed please find the revised Exhibit 8 for Sedimentation Pond E at <br />Fish Creek Tipple. I have revised the top of the principal spillway <br />decant and de -watering hole based on your as built survey of the <br />excavation completed in late June, 1985. <br />Please review this information and contact me with any questions. <br />Sincerely, <br />ACZ INC. <br />Eldon D. Strid <br />EDS/loj <br />303/879-6260 <br />