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Surface Facilities and Fresh -Water Systems Map, (Map 24, Sheet 1 of 3)) to a depth of approximately 100 feet, <br />where it daylights in the 0 -Entry of the underground mine workings. Because they are in previously disturbed <br />areas, the 0 - Entry Borehole and pipeline will not require soil material salvage or modification of the existing <br />drainage and sediment control system. The borehole will be completed as a 16 -inch (maximum) diameter <br />drillhole using conventional drilling techniques, with air or air/foam as the circulating medium. Using air or <br />air/foam, and because the hole is so shallow, mud pits will not be required. A 12 -inch (maximum) diameter steel <br />casing will be placed and grouted in the drillhole. The borehole surface installation will be protected by a section <br />of CMP, buried so that 2-4 feet extends above ground level. The surface installation will be properly grounded to <br />comply with applicable MSHA requirements. One or more concrete -filled steel posts, extending four -feet above <br />ground level will mark and serve to further protect the surface installation. An 8 -inch (maximum) steel or welded <br />HDPE transfer pipeline connecting the Borehole to the existing Site 109 Discharge Pipeline will be trenched and <br />buried approximately 6 -feet deep along the existing Haulroad. The pipeline will enter the Borehole below grade, <br />and control valves will be used to control flows. <br />Fish Creek Dewatering Boreholes, Treatment System, and Transfer Pipelines (TR99-35, MR90-46, MR91- <br />68, MR06-207, MR07-216, MR16-297, MR16-298, MR16-299) - At the Fish Creek Borehole location, <br />submersible pumps draw from an underground sump where mine water inflows, that have been intercepted and routed <br />underground, as shown on Map 16 (Mine Water Balance Map), collect. Coal fines slurry from the Washplant <br />Thickener Underflow Borehole also discharges to the underground mine water storage area. Prior to entering the <br />sump, the mine water and coal slurry decant water pass through an network of abandoned and sealed mine workings <br />which facilitate settling of any suspended solids prior to collection and pumping of mine water to the surface. <br />Installation of the original transfer/recycling system from the Fish Creek Dewatering and Water Treatment <br />Facility required the following activities: 1) Installation of a pumping system at Fish Creek Borehole facility, 2) <br />Electrical and control system modifications, 3) Installation and tie-in of a waterline from the western settling cell <br />to the Barricade Chamber/FCM-2 site, and 4) Installation of manholes along the waterline for installing "T's" for <br />stock -tank feeds. Installation of the pumping system required construction of a concrete pad as a foundation for <br />the pump and control building. The pad slopes towards the existing treatment cells, or a drain pipe may be <br />installed, so that any runoff from the pad will drain to the cells. A suction line from the pump in the western <br />settling cell allows treated mine water to be pumped to the Barricade Chamber TORT waterline, or proposed <br />secondary l ORT waterline. Whether in mine water recycle or direct discharge mode, the water treatment system <br />will continue to function, to treat mine water for use underground, or to meet applicable effluent limitations for <br />direct discharge to Fish Creek. Direct discharge occurs through a gated discharge pipe in the final treatment cell, <br />with discharge to the outlet channel and flow measurement flume discharging to Fish Creek at CDPS Outfall 115. <br />The discharge line from the transfer pump connects to the two mine water transfer pipelines (Fish <br />Creek/Barricade Chamber, and Fish Creek/Area 1 Pit), with valving to control flow and routing. <br />Fish Creek Treatment Ponds Discharge Pipeline (MR09-237) - A new head -gate and pipeline was installed at <br />outlet of the Fish Creek Treatment Ponds to control discharge through CDPS Outfall 115 to Fish Creek. The new <br />pipeline replaced the existing discharge pipeline, which had a sharp angle bend that was subject to clogging. <br />Discharge pipeline replacement occurred during the May 2009 longwall move, when water from the treatment <br />ponds was not needed for underground operations. This allowed TC to drain the pond to facilitate pipeline <br />replacement. The replacement pipeline is 12 -inch welded PVC pipe, extending approximately 50 feet from the <br />treatment ponds to the Outfall 115 drainage channel. The new head -gate is similar to the existing head -gate. The <br />location of the Fish Creek Treatment Ponds discharge pipeline is shown on Map 24 (Sheet 2 of 3). <br />The pump/control building was constructed on the concrete slab (approximately 12 x 20 x 2 feet) on the existing <br />berm, with limited fill on the west side of the existing cell embankment to establish a stable pad for slab <br />construction. Fill material was obtained from within the boundaries of the disturbed area or brought in from the <br />portal area. Once the new building was constructed, the building housing the acid -feed system was de -energized <br />and removed. The power -feed from the existing substation was then extended to the pump -station, requiring <br />installation of two additional powerpoles. All construction activities occurred within the previously disturbed <br />area. <br />The original mine water transfer pipeline to the Barricade Chamber/FCM-2 location was installed along the <br />existing road corridor, except for a segment that traverses the reclaimed and bond -released surface mine area. In <br />MR16-299 2.05-50.1 06/16/16 <br />