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~~, <br />~~_~tt <br />- t~~. <br />A Subsrdian~ <br />of <br />Walern fueLe <br />Associalrou. lnt. <br />Ms. Barbara Pavlik <br />Division of Mineral and Geology <br />1313 Sherman Street, Room 215 <br />Denver. CO 80202 <br />RE: T.R. 34 <br />Dear Ms. Pavlik: <br />III IIIIIIIIIIIIIIII <br />March 7, 1994 <br />RECEIVED <br />MAR 08 1994 <br /> <br />I am responding to your letter of February 22, 1994 regarding the portion concerning NOV C-93-154. <br />On Friday, March 4, 1994 Gordon Bell of Deserado Mine spoke with you concerning the measures <br />needed to abate NOV C-93-154. As per your request, the following methodolody for abatement shall <br />resume. <br />A permanent diversion ditch shall be constructed around the final perimeter of RP-4. The cobble <br />check dams required along this ditch for erosion control will not be installed until the final toe for the <br />pile has been reached, and equipment is no longer needed in this area to "dress" the slope. <br />Once an area requiring cobble check dams has been completed to final grade, the check dams will <br />be installed. This process will eliminate the need to replace previously installed check dams damaged <br />by equipment. Three copies of Map 77 showing the required locations of the cobble check dams are <br />enclosed. Also included are 3 copies of permit Map 80 which shows a "Typical Diversion Ditch" detail <br />with size of the cobble structures as requested by DMG along with a copy of the hydrologic data used <br />to size the diversion ditches. <br />We would like to request a four (4) week extension of the March 15, 1994 deadline for abatement of <br />NOV C-93-154 due to weather conditions. The areas of concern are currently too wet and soft to <br />place equipment for construction of the diversion ditches. <br />If you have any questions, please call. <br />Sincerely, <br />.~- <br />Murari P. Shrestha, P.E. <br />Assistant Manager of Engineering <br />MS:Igp <br />Mr. Bob Hagen <br />ce: Jeff Dubert, WFU <br />Bob Hagen, OSMRE -Albuquerque <br />Mr. Curt Smith, BLM-Meeker <br />Richard Holbrook, OSMRE -Denver <br />Raja Upadhyay <br />Suite #305 <br />405 Urban Street <br />Izkewood, Colorado 80228 <br />Telephone 303/9E8-9626 <br />Telecopier 303/9868147 <br />