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III IIIIII~IIIII~ III STATE, OF COLORADO DIVISION OF MINERALS AND GEOLOGY Department of Narural Resources 131 7 Sherman St., Room 215 Denver, Colorado 80207 Phone: (70]1 866-7567 FAX. (303) 872-8106 July 31, 2000 Mr. Basil R. Bear Bowie Resources Limited Bowie No. 1 Mine P.O. Box 1488 Paonia, Colorado 81428 RE: Disturbed Area Boundary Maps, Bowie No. 1 Mine, Permit No. C-81-038, Bowie Resources Limited Dear Mr. Beaz: ~~ D I V I $ ION (_~ MINEEZAI &- GEOLOG' REC LAMATI O.i_ MINING•SA FE1 gill Owens Governor Greg E. Walther Executive Director rotichael B. Long Division Director As a result of the 1999 OSM Surface Disturbance Special Focus Oversight inspections in Colorado, an agreement has been worked out between the Division and the Office of Surface Mining concerning guidelines for the depiction of surface disturbed azea boundaries on maps. The Division believes that these guidelines aze reasonable and will result in a more coherent permit application package. The following guidelines should be applied to the Bowie No. 1 Mine maps. Rule 2.05.3(2)(b) requires that a map be provided which shows the extent of the surface disturbances that are associated with an underground coal mine. In order to meet the requirements of this rule, the Division is requesting that operators depict the extent of all of the surface disturbances in the field on a map or maps using a distinct line boundary, with appropriate map annotation. The Division stresses that the surface disturbance includes all outlying disturbed azeas, such as explosives bunkers and substation pads, as well as those - disturbed areas at the main mine site. Of course, the surface disturbance boundary also must be appropriately marked in the field, as required in Rule 4.02.3. The number of separate maps to use to depict the surface disturbance boundary depends on the particular mine situation. A balance must be found between map detail and ease of use while in the field. As a result of the August 24, 1999 Special Focus oversight inspection of the Bowie No. 1 Mine, the issue of surface disturbance boundaries marked in the field and depicted on the mine maps was examined. The Division is requesting that several deficiencies be corrected as a result of that inspection. First, although surface disturbances aze depicted on various maps, the boundazies of