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~ -_ ~' <br />' II. Operation Plan (con't) <br />A cleaning plant may be necessary depending on the extracted coal. Coal <br />characteristics are uncertain at this point. <br />CYCC will request a further delay and extension in contemporaneous <br />reclamation for pit 2. Tliey want to utilize the unreclaimed open pit <br />for waste disposal. The Division's concerns were directed towards ground •~ <br />water quality. CYCC will have to address this. It was decided that a <br />trigger date would be established whereby either CYCC submitts a new <br />application for full production or pit 2 will have to be reclaimed. <br />The mining method will be room and pillar with a continuous miner. All <br />entries could be utilized for access to federal coal at a later date. <br />Monuments will be established in caved areas to predict the angle of <br />draw and rock mechanics. CYCC hopes to identify potential problems and <br />environmental factors prior to full development. There are no structures <br />above the pilot project area. <br />CYCC is planning to do a stability analysis of the old spoils above pit 2 <br />where there is evidence of instability. Surface disturbance resulting <br />from regrading will have to be addressed in the revisions so the Division <br />can review the analysis and comment on it. <br />III. Geoloev <br />Wadge coal will be mined; the dip is to the MJ; there are no major faults as <br />determined from drill holes (4 drill holes/mile). <br />IV. Hydrologic Balance <br />There are two affected surface drainage streams: <br />1. Foidel Creek, an intermittent stream, which runs 3-4 months/year and; <br />2. Fish Creek, a perennial stream. <br />The overlying aquifers are: <br />1. Overburden - 70' directly above the coal; recharged at highwall; <br />expected to discharge into the ug mine. Dewatering is not expected to <br />result in stream depletion. <br />2. Twentymile sandstone - 5-700' above Wadge coal seam; recharged at <br />outcrop in Mine No. 1. Pump test results indicate no connection to <br />overburden aquifer. <br />3. Alluvial - Foidel and Fish Creeks. <br />Water will be pumped from the mine to sumps in pit 2 and then passed through <br />the sedimentation pond system. <br />Calculations demonstrating adequate storage volume to include mine water <br />will have to be provided. <br />