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17:36 <br />$7198682275 BAS 1 N RESOURCES II I' II' II' II I'll'll ¢j 001 <br />999 <br />~; <br />14300 HipMwey 12 <br />Weston, t7oloredo 81091. <br />(719888-276t <br />FAX (719)888-2275 <br />BASIN <br />RESOURCES, ~wc <br />a subsidiary of ENTECH, Inc. <br />Joseph Dudash <br />Of lice of Mined Land Reclamation <br />1313 Sherman St. , Rat 115 <br />Denver, CO 80103 <br />Re: New Elk Mine <br />Pond Certifications <br />Revision to TR 25 <br />Dear Mr. Dudash: <br />April 25, 1993 <br />Enclosed please find the P.E. certifications for New Elk <br />sediment structures RDA - North, RDA - Southwest, and RDA - <br />Southeast. <br />The west portal structures ware also constructed nrtd <br />surveyed. it was found that field conditions limited the <br />capacity that could be obtained with the approved design. <br />Theze'fore also enclosed is a revision to the approved <br />Technical Revision Number 15 requesting approval for a <br />change in the epproved design for these two structures. <br />If you have any questions, please Contact Ron Thompson at <br />extension 107. <br />Si~erel],y ure <br />R~(o'n~ba~laadJJ/G. Thompson <br />Senior Mine Engineer <br />