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reclaimed), the silo area railroad outslopes, the Bowie No. 1 main facilities fan area (now <br />reclaimed) and the south portion ofthe highway coal stockpile area. See PAP Section 2.05, <br />Volume 8 and Maps 8-1A, 8-2, 8-3, 8-6, and 8-7 (4.05.2(3)(b)(i)). <br />Stream Channel Diversions <br />A clean water diversion above the main facilities area ofthe Bowie No. 1 East Mine directs <br />undisturbed area flow around the facilities area to minimize surface water flow through <br />that site. A similar clean water diversion ditch existed above the facilities at the West Mine <br />portal bench area. However, due to reclamation operations at that site, the clean water <br />diversion ditch was reclaimed. A system of lined and unlined ditches conveys waters from <br />the disturbed areas to the sediment ponds. Design details can be found in the PAP, <br />Volumes 6, 8, and 8A. <br />In order to minimize water quality impact to water flowing through the Bowie No. 1 West <br />Mine area, water from East Roatcap Creek is diverted to West Roatcap Creek. To verify <br />that no water is lost through diversion of the Overland Ditch, surface water monitoring <br />point SW -09 was moved to, and is currently monitored at, the point of the diversion from <br />East Roatcap Creek. <br />Because of limited space at the West Mine, East Roatcap Creek was diverted through a 48 <br />inch diameter culvert so that the West Mine portal bench could be built over the creek. <br />When the mine bench was reclaimed, the East Roatcap Creek culvert and about 10 feet of <br />cover soil were left in place. Two sediment ponds were built over the creek culvert for <br />sediment control until the upperportion ofthe West Mine bench stabilizes with vegetation. <br />Once this upper portion becomes stabilized, the buried culvert will be removed and the <br />East Roatcap Creek will be reconstructed. <br />Sedimentation Ponds <br />The Bowie No. 1 mine plan was designed to minimize the impacts of the project on the <br />surface water hydrology of the region. Disturbed area drainage from the East Mine <br />benches, parking area, west portal fill, and loadout site were collected and treated on the <br />site. Four sediment ponds collected disturbed area drainage from the mine benches. <br />Another pond controlled sediment generated by the West Ridge waste pile. One pond <br />controlled drainage from the timber storage area (i.e., training trailer area; run of mine coal <br />stockpile area), and two ponds collect drainage from the disturbed areas of the loadout, <br />truck scales, and highway coal stockpile area. The reclamation activities associatedwith <br />SL -6 removed the five ponds at the East Mine and the one pond at the timber storage area. <br />The West Mine portal bench area drained to one sedimentation pond except for exempted <br />portions of the fill face and the ventilation fan facilities, which had small area exemption <br />waivers. With the reclamation murk at the West Mine portal bench area, the backfilled and <br />graded area now drains to two sedimentation ponds. Small area exemptions have also been <br />approved, with appropriate demonstrations, for the original mine ventilation bench, the <br />training trailer fill outslopes (now reclaimed), and the loadout/railroad fill outslopes. <br />Details can be found in the approved permit application, Volumes 8 and 8A. <br />23 <br />