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Y_ <br />April 28, 1981 <br />Mr. Andrew P, Schissler <br />Empire Energy Corporation <br />P. O. Box 68 <br />Craig, Colorado 81625 <br />David C. Shelton <br />Director <br />Re: Empire Energy Corporation, Preliminary Adequacy Review <br />File No. C-049-81 <br />Dear Mr. Schissler: <br />The purpose of this letter is to convey the preliminary concerns which <br />have been identified in the review of the application referenced above. <br />This review constitutes the 60-day notification of preliminary findings <br />as to the substantive adequacy of your application, pursuant to CRS 1973, <br />39-33-118(5). Additional comments may be forthcoming as the review <br />progresses on the issues raised in this letter and on of/ters that may <br />be identified. <br />Review of maximum coal recovery is pending. The USGS is handling this <br />section and comments should be forthcoming soon. A copy of their response <br />will be sent to you. <br />The Division expects to resolve all outstanding issues during the course <br />of this review particularly the groundwater monitoring plan, the AVF <br />exemption, the subsidence plan and the Craig loadout facility. <br />The groundwater monitoring plan is a major concern of the Division's. This <br />has been the topic of many discussions during the past year; a summary <br />of the meetings is found in Attachment C. The monitoring plan is <br />necessary to establish groundwater baseline conditions and to evaluate <br />the probable hydrologic consequences of mining. The Alluvial Valley <br />Floor (AVF) issue is another major concern which has been discussed in <br />many meetings. The Division's and OSM's concurrent position is enclosed <br />as Attachment E. The Division is concerned about subsidence at the <br />Eagle Mines, particularly with respect to the nVF, existing structures, <br />the complex hydrology of the area and the fact that tJiere is a history <br />of subsidence in the area. Review of this section is found in Attachment D. <br />DEPARTMENT OF NATURAL RESOURCESr' aMM. r'w ~ ~~~~ III IIIIIIIII I'll III <br />D. Monte Pascoe. Er ecu bvC DvCCtOr 999 <br />M IN LU LAN U !t F.(;LAI~I A'CION <br />423 Centennial Building. 1313 Sherman Street <br />Denver, Colorado 60203 Tel. (3031 639-3567 <br />(cont'd) <br />