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<br />-16- <br /> <br />Western Fuels has obtained an approved NPDES permit (No. C-0038024) for all <br />discharge points at the mine. A copy of the permit is provided in <br />Illustration 13 of Volume 11 of the permit application. <br />Disc ha roe of Ground Waters at Surface <br />Although ground water inflow into the mine is expected to be very low, the <br />permittee has estimated that faulting might yield flows of 5 to 10 gallons per <br />minute on a local short-term basis. Furthermore, fractured zones encountered <br />during mining could potentially yield 100 to 300 gallons per minute for a <br />short time. This water will not be pumped into a sediment pond, but will be <br />discharged to a holding tank on the surface. Part of the water will be stored <br />for use in the mine and some of it will be treated for use in the surface <br />facilities (Pages II C-106, and C-108). If storage capacities are exceeded by <br />mine inflows, excess water will be treated as necessary in processing ponds <br />PP-1 and PP-2 and discharged at point 004 of the approved NPDES permit. <br />Surface Water Control Facilities <br />Basic information pertaining to surface water control measures for the <br />De serado Mine surface facilities can be found in Sections IV.J. and V. A. of <br />Volume 4, Illustration 13 of Volume 11 and Illustrations 31 and 34 of <br />Volume 12 of the permit application. Surface facilities at the mine consist <br />of the D-Portal area and explosives magazine, water storage area, overland <br />conveyor system, slot storage facility, rail loadout/loop, coal processing <br />waste disposal area, ventilation entry, alluvial well area, and the Nalandras <br />garbage dump. Surface water control measures for all light duty, access, and <br />haul roads at the mine are discussed in Section XX of this findings document. <br />All surface waters draining from disturbances associated with surface coal <br />mining operations (except roads) are controlled and treated through the use of <br />berms, ditches, diversions, sediment ponds, and/or alternative sediment <br />control measures for the above facilities. <br />All ponds, ditches, diversions, berms, and alternative sediment control <br />measures were reviewed during the original permit submittal or subsequent <br />revisions to the permit and approved by the Division. <br />Concerns which were originally stipulated in the 1981 findings have all been <br />subsequently resolved. <br />Stream Buffer Zones <br />At the time of original permit issuance, the Division authorized the loction <br />of the De serado Mine alluvial well field facility within 100 feet of the White <br />River. The authorization was based on a specific finding that the water <br />quantity and quality from the stream section within 100 feet of the facility <br />would not be adversely affected. Please refer to section V.6.8 of this <br />findings document for details. Rule 4.05.18 also requires a finding be made <br />that "the original stream channel be restored." This will not be possible, <br />however due to the installation of Kenney Reservoir in the area of the <br />alluvial well field which has resulted in the complete inundation of the <br />original stream channel to a level at or slightly above the 100 year flood <br />plain of the river. As such, the finding required by Rule 4.05.18(1)(a) is <br />