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l <br />1 <br />1 <br />1 <br />1 <br />J <br />1 <br />1 <br />l <br />l <br />1 <br />1 <br />1 <br />l <br />1 <br />,,,.,~.p,.,.,a,,,, <br />~wwm usss~~esve <br />January 1995 <br />Kerr Coal Company ' 1994 Annual Hydrology Report <br />1.0 OPERATIONAL CONDITIONS <br />Active mining and coal production ceased on January 21, 1993 and all overburden returned to <br />Pit 1 and the 720 Pit during the 1994 water year. Topsoil placement continued through <br />September 1994 (end of 1994 water year). <br />Since October 1993, about 240,000 loose cubic yards (LC17 of overburden were placed in Pit <br />1, while about 3,256,000 LCY of overburden and 241,000 LCY of topsoil were placed and <br />graded to final contour in the 720 Pit. <br />TenaMatrix Inc. • P.O. Box 774018 • Steamboat Sprirsg; Colorado 80477 (303J 879-6160 <br />