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J. E. STOVER & ASSOCIATES <br />2768 COMPASS DRIVE, SUITE 101 <br />GRAND JUNCTION, COLORADO 81506 <br />PHONE: (970) 2454101, FAX 242-7908 <br />IrmVE ENGINEERING <br />nnNE RECLAMAnoN <br />June 2, 1999 <br />J. J. Dudash <br />Division of Minerals & Geology <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />Re: Bowie No. 2 Mine <br />Technical Revision Application <br />Gob Pile Stability - NOV CV-99-004 <br />Permit C-96-083 <br />Deaz Mr. Dudash: <br />cif niiiiiini~~ ~~i <br />CIVIL ENGINEQtWC <br />CONST. MANACEMFI`fr <br />RECEIVED <br />JUN 0 41999 <br />Division of Minerals 6 Geob9Y <br />The abatement step for the subject notice of violation is to submit a technical revision to show <br />that the static factor of safety of the refuse pile is equal to or greater than 1.5 for the life of the <br />refuse pile with the material strength characteristics determined to be appropriate for the specific <br />compaction and material characteristics previously determined in the field. The technical revision <br />application is to be submitted by 5 PM, Friday June I I, 1999. <br />Enclosed is the required technical revision application. The technical revision is a stability analysis <br />prepared by Lambert and Associates dated May 26, 1999. The report should be incorporated into <br />the permit in Volume IV -Gob Pile. <br />Please call if you have any questions. <br />Sincerely, <br />~~~~--- <br />J. E. Stover, P.E. <br />Consulting Engineer <br />cc: Wm. A. Bear, Jr. <br />