2004-01-08_REVISION - M1987024 - Laserfiche WebLink

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G/~M DIVISION OF MINERALS AND GEOLOGY Department of Natural Resources 1373 Sherman SL, Room 215 Denver, Colorado 80203 Phone: (303) 866-3567 FAX: (303) 832-8106 January 8, 2004 ~/ STATE OF COLORADO COLORADO DIVISION O F MINERALS GEOLOGY PECLAMATION•MINING SAFETY•SCIEN CE Bill Owens Governor MlChael Rlpp // Greg E. Walther MVR Resources, InC./ Ezecufive Direcor P.O. Box 54 Ronald W. Cattany Division Director Delta, Colorado/81416 Natural Resource Trustee Re: Corey Pit # 3, Permit No. M-1987-024. Pie/iminary Adequacy Review (PAR/ for 112c ~~ Conversion (CN-01/.~ Dear Mr. Ripp: The Division of Minerals and Geology has begun the review process of the above referenced conversion of a 1 10c to a.1 12c for the Corey Pit # 3. A Preliminary Adequacy Review (PAR) has identified the following issues that need to be clarified or corrected. Please address-the following: 1)' Please respond to comments and concerns submitted by the Shavano Conservation District. A copy of those comments is enclosed. 2) Please respond to comments and concerns submitted by the Office of State Engineer. A copy of those comments is enclosed. Also, in the Mining Plan under 6.4.4 Icl, the seep referenced during irrigation season could be noted as exposed groundwater. Staff asks that MVR and /or the operator consult the local Water Resources Office for a review of the situation. If it is exposed groundwater please refer to item #7 below. 3) In Exhibit D, The Mining Plan, there is a reference to excavation of gravel up to an 85 foot buffer zone along the south and west sides of the proposed boundaries. From there, it appears that the remaining resource will be mined in a cut and push method back to the 25 final buffer zone. Please clarify that this is the intended method of mining for the noted area. Also, staff asks for a commitment by the operator to mark these buffer zones adequately prior to commencement of mihing to assure that over excavation cannot occur. 4) Within Exhibit D, there should be a narration on the types of hazardous materials (fuel, oils, etc.1 that will be on site at any time and a detailed description of spill protection measures (secondary containment) to be employed at the site. Office of Office of Colorado Mined Land Reclamation ARive and Inactive Mines Geological 8urve~~;