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COLORADO <br />DIVISION Of MINERALS ANO GEOLOGY <br />Oepamment d Na[ural 0.oourcN <br />17 [ 7 Shem+an st.. Room 31 S <br />Denver, Colaado 60303 O I v I s t O N <br />Phone:13031866.3567 M l N E RA <br />FAX: 13071 873.8106 &~ <br /> GEOL01 <br /> <br />June 29,1999 atCU NATI <br />MINING•SA/ <br />John C. Weinman 6'°~ <br /> <br />Montgomery Watson Gonmer <br /> cre t. waklw <br />P.O. Box 774018 t..cw~ve o~raCtp <br />Steamboat S rin s, CO 80477 MKnael e. [ens <br />P g onnpn oheQpr <br />Re: Hayden Gulch Mine (Permit No. C-80-003) <br />Cessation of water monitoring program <br />Deaz Mt. Weinman: <br />During the Division's regulaz monthly inspection of May 1999 at the Hayden Gulch Mine you <br />requested that water monitoring az Hayden Gulch Mine be discontinued. Your request was made in <br />anticipation of the Division's recent proposed decision to approve Bond Release Application No. 3' <br />(SL-3) for the Hayden Gulch Mine. <br />The Division believes chat water monitoring at Hayden Gulch Mine is no longer necessary as indicated <br />by the impacu to surface water and ground waur that arc lisud on pages 13 and 14 of the Division's <br />findings document prepared for SL-3, dated May 23, 1999. Also, on page 15 of that findings <br />document, the Division found that the permittee, H-G Coal Company had successfully completed all <br />surface coal mining reclamation operations in accordance with the approved reclamation plan. Those <br />operations included the mine's waur monitoring plan. Based on the completion of the water <br />monitoring program, and the lack of a technics! basis for ft3rther monitoring, the Division approves <br />cessation of further water monitoring at the site. I discussed this approval with David Berry, Coal <br />Program Supervisor, on June 23, 1999 and he expressed his support. <br />Cessation of water monitoring will be consisunt with the intentions of the remaining mining and <br />reclamation permit. When the proposed bond release becomes final, the Hayden Gulch Mine mining <br />and reclamation permit area will be reduced to 6.g acres comprised of three shrub enclosures and a <br />slump area. The purpose of maintaining bond liability on this 6.g-acre remnant of the original 1276- <br />acre permit area is to ensure successful revegetacion and for demonstrating ground stability. <br />If you have questions or are in need of additional information, please contact ttte. <br />Sincerely, <br />Tom Kaldenbach <br />Environmental Protection Specialist <br />ce: David Berry, CDMG <br />