GENERAL42779 - Laserfiche WebLink

Home Browse Search

iii iiiiiiiiiiiuiii STATE OF CO~vi~~y DIVISION OF MINERALS AND GEOLOGY Department of Natural Resources 131 3 Sherman 51.. Roam 21 5 Ilyk~ Denver, Colorado 80203 IIr Phone 1303) 8b6-35ti7 FAX: (303) 832 8106 DEPARTMENT OF DATE: September 8, 1998 RESOURCES Roy Romer Governor lames 5. Lochhead TO• Larry Routten Eaecubve Diregrn • Michael B. Long r. Division Director FROM: Joe Dudash ~ ('Vr\\ D RE: Old Gob Pile, OSM Special Focus Oversight Inspection, Bowie No. 1 Mine, Permit No. C-81-038, Bowie Resources Limited. The purpose of this memo is to outline what I have found concerning the history of the designs and certification of the Bowie No. 1 Mine old gob pile. This issue came up during the OSM 1997 Special Focus Oversight inspection of the waste piles at the Bowie No. 1 Mine. OSM wanted the engineer's quarterly inspection certification of the waste piles to state that the piles had been constructed as designed. The West Ridge Waste Pile engineer's certification was changed to reflect this wording. However, the old waste pile certification has not been changed since the pile apparently has not been constructed according to the designs. The following is a summary of what I have been able to decipher: The old gob pile was begun pre-law but has been used post-law; 2. The 1981 Findings Document for the original permit application stated that the Division did not want the mine to continue to use the old gob pile since the old gob pile did not comply with the regulations. The Division wanted the operator to start a new gob pile that would comply with the regulations. (See page 38 of the 1981 Findings Document attached to this memo); The Division attached a stipulation to the 1981 Findings Document that allowed the operator to use the old gob pile, with the only regulatory requirement being compaction under Rule 4.10.4(3), until the volume reached 25,000 cubic yards. Once the old gob pile reached 25,000 cubic yards, the old gob pile would have to be brought into compliance with all of the appropriate regulations within 6 months. (See page 39 of the 1981 Findings Document attached to this memo);