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<br />~~~ ~~~~~~~~~~~~~~~~ P~o~ ~~~~. <br />999 <br />AC: Inc _... m ~ ~~ <br />ENGINEERING AND ENVIRONMENTAL DIVISION <br />1475 PINE GROVE ROAD <br />P.O. BOX 774018 <br />STEAMBOAT SPRINGS, CO 80477 <br />Mr. Bryan Archer <br />Sun Coal Company <br />5440 Ward Road, Suite 210 <br />Arvada, Colorado 80002 <br />AU6 181986 <br />August 4, 1986 <br />~~~~~~~~ <br />MINED WVD <br />RECLAMATION DIVISION <br />(303) 879-6260 <br />TELEX 510-100-3880 <br />Re: Certification of Field Construction for Surficial Instability <br />Remedial Action, Meadows No. 1 Mine <br />Dear Bryan: <br />ACZ INC. has examined the remedial measures taken in response to the <br />Surficial instability problems at the Meadows No. 1 Mine. We have <br />examined the on-going construction as well as examining completed <br />construction. <br />The field construction has been completed in accordance with our <br />original design except for the following field modifications: <br />• Larger toe drain for Areas 2 and 3 <br />• Modified bench for contour ditches, Area 6 <br />These field modifications are in accordance with the spirit of the <br />original design and were completed to enhance the design with respect <br />to actual field conditions. <br />The enclosed Figure 6, Area 6 Remediation, revised, shows the as-built <br />configuration of the gradient terraces. Since the only modification <br />to the toe drains at locations 1 and 2 are to enlarge them, I have not <br />included a revised figure for those drains. Also enclosed with this <br />letter are photographs showing construction progress and completed <br />remedial work. <br />I find that the completed construction is in compliance with the <br />original design except for the required revegetation work and the <br />field modifications noted above. It is my understanding that the <br />