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III IIIIIIIIIIIII III <br />999 <br />D. H. EMLING COMPANY <br />MINING ENGINEERS AND GEOLOGISTS <br />7800 EAST UNION AVENUE. SUITE 420 <br />DENVER. COLORADO 80237 <br />March P3, 1983 <br />,.. <br />13031 77B-B 448 <br /> <br />Ms. Susan Mowry <br />Mined Land Reclamation <br />423 Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />Dear Susan: <br /> <br />MINED LAND RECLAAL4TION <br />COLO. DF7T. O: NATU.TAL R:_O' ::^.CES <br />In order to comply with Stipulation No. 13 of the Sundance Coal Company <br />permit, the following information is being submitted concerning the drilling <br />of the water monitoring well between the sediment pond and the toe of the <br />refuse facility. This information was received from Darrel Hespe, the former <br />Sundance employee who supervised the drilling. <br />(1) A 4" diameter well was drilled by Don Stuart of <br />Aguillar, Colorado on September 23, 1982. <br />(2) The well was drilled to a depth of 60 feet. From <br />0'-16', drilling encountered unconsolidated material <br />and old refuse material mixed with red dog. From <br />16'-60', a sandstone was encountered. At 60' depth, <br />firmer bedrock was found and drilling stopped. Water <br />was used in drilling which made it difficult to deter- <br />mine where the natural water level was located. However, <br />it appeared that ground water was found at the interface <br />between the unconsolidated material and the sandstone. <br />The sandstone appears to be the Trinidad sandstone. <br />(3) Field sampling and water analysis are included for the <br />well prior to refuse disposal and compaction. <br />If there are any questions, please contact me. <br />GL/s <br />Sincerely, <br />D. H. EMLING COMPANY <br />a.~L%a"u'"". <br />Gregory Lewicki, P.E. <br />Mining Engineer <br />cc: Charles Silengo <br />Earl Madden <br />James Grant <br />