GENERAL33252 - Laserfiche WebLink

Home Browse Search

• Minerals Coal: All three coal groups have been historically mined in the Twentymile Park region.' Within the Foidel Creek Mine area, the Fish Creek seam is the only representative of the Upper Coal Group in this area and has been mined ovt or, ae in the case of the proposed lease lands, eroded away. The Middle Coal Group ie here composed of the Lennox, Wadga and Wolf Creek seams, in descending order. The Lennox seam averages about d feet thick. It is not considered mineable due to this inadequate thickness and poor lateral continuity. The Wedge is the primary seam of interest. its thickness remains fairly constant between 9 and 13 feet thick and ranges from 700 to 1,100 feet deep with good continuity. The wadge ie considered a high volatile C bituminous in rank. The Wolf Creek seam is 140 to 190 feet below the wadge seam and is generally 8 to 9 feet thick but with greater variability than the Wedge. There are no plane to mine the Wolf Creek seem in the foreseeable future. oil and Gae: The proposed lease lands are not within a designated oil and gee field, mown Geologic Structure, unit, or participating area. Only the WyNWy of section 31 has federal oil and gas estate. This parcel ie encumbered by oil and gee lease C-39036. To date, no wells have been drilled or are planned on this lease. The oil and gee on the rest of the proposed lease lands is privately owned (fee). There is a shut-in oil well in the SE~tSE~NW~ of section 36 that was recently purchased by CWCC. This well le located just south of the southernmost longwall panel. This well was once in the Fieh Creek Unit but the unit contracted on August 24, 1977, • leaving the United States with no interests in this well. Hvdrolow Surface Water: The expansion of TCC'9 mining activity flanks the eastern bank of Fieh Creek and the northern bank of Foidel Creek. Fish Creek is a perennial stream, with dominant portions of its flow coming from shallow alluvial aquifers while Foidel Creek has historically been intermittent. With the addition of mine and spoil discharge, it ie now a perennial stream. Fish Creek was gaged from 1955 to 1973 from a station maintained by the U.S. Geological Survey (USGS), labeled FZS~ CREER HEAR NILNER. The average discharge was described ae 12.7 ft /second, with the peak flow of record being 342 ft3/second (occurring on May 18, 1970). Steele, et. al. (1977) estimated an average base flow of 3 ft3/second. Foidel Creek le presently gaged with two USGS stations. USGS Gage No. 09243800 ie located in NW1~SW1~, section 31, T.SN., A.86W.; the q~ge drains an area of 8.6 mileez. The average discharge is 1.42 ft /second, with the peak flow of record measuring 55 ft3/second (April 21, 1980). The second gage (No. 09243900) ie located in the SE45E~, sec. 14, T.SN., R.86W.; this gage drains 17.5 miz. The average discharge ie 3.29 ft3/second, with the peak flow of record measuring 90 ft3/second (April 22, 1980). Two springs have been identified ae emanating from the Fieh Creek Sandstone. These springs were monitored in the fall of 1991 and the first quarter of 1992. Flow rates were measured at 5 gpm or lees. C]