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• <br />III IIIIIIIIIIIIIIII- • <br />999 <br />STATE OF COLORADO <br />~1 <br />OF MINERALS AND GEOLOGY <br />rn Natural Resources <br />I f I J Sherman SL. Room ?15 <br />Denver, ColornJo 80'_'03 <br />Phone: 1103) iSLfiJ5fi7 <br />F.4%: 1301) 83? N106 <br />DIVISION OF <br />MINERALS <br />GEOLOGY <br />0.EC LAMAiIpN <br />MINING•SA FETY <br />February 23, 1999 <br />Mr. Carl Roberts <br />Lyman-Richey Corporation <br />P O. Box 964 <br />4521 Howard Blvd. <br />Columbus, Nebraska 68601 <br />RE. Craig Pit (File M-99-01 I) Adequacy review of I I I permit application <br />Dear Mr. Roberts: <br />Bill Owens <br />Cwernnr <br />Greg E. Wolchei <br />E.ecuuvc DirCUnr <br />Michael B. Long <br />Division Director <br />The Division has completed a review of the permit application for [he Craig Pit and has identified the. <br />following adequacy issues: ' <br />PAGE I: The location indicated on Paee I of the application places the pit in the SW NW of <br />Section 27 but Exhibit A and the Exhibit E maps indicate the location to be in the NW SW of Section 27. <br />Please contitm the location of the pi[ as being in the N W SW of Section 27. <br />EXHIBIT C, Section (e): You have .stated that the floor elevation is below known water elevation <br />but that the excavation will not require any type of dewatering. This is confusing. If the floor of the oil is <br />below water level, then, without dewaterine, the mining will probably be carried on in a wet pit. <br />Please indicate if the miniu_ is to be carried on in a wet pit and if the well applicatcn being made <br />to the State Engmeer's Otfice Is the result of the anticipated exposure of ground water try the mining. <br />EXHIBIT C, Section (h): You have specified the source of the water to be used nn site but have <br />nct provided an estimate of the amount to be used. <br />Please provide an estimate of the amount of water to be used in conjunction ~.vith the operation. <br />EXIfIB1T C, .Section {i): you have indicated storm water will be retained in the "dredging area". <br />This again suggests that the mining will be done in a wet pi[ and appears to conflict with your statement <br />that the excavation of material will be by bulldozer or front-end loader. <br />Phase be clearer in regard to whether the mining will be in a wet pit or not and if there is to be <br />dredging as part of the mining operation. If there is to be a wet pit such that storm water will be retained on <br />site, then you should provide an Exhibit E mine plan map that shows the limits and depth of such a pit. <br />Exhibit C, Section (j): The Division understands that an application has been made for a gravel pit <br />well permit. The Division, Ilavvever, is unsure if this application is the result of the anticipated exposure of <br />ground water in a wet pit or if the well is to be a conventional bore hole. <br />Please indicate if the well permit is for a conventional bore hole or the result oFanticipated <br />exposure of groundwater by the mining operation. <br />