Laserfiche WebLink
The maintenance and operation and removal requirements for each of the sediment ponds and treatment facilities <br />aze similar. Each will be discussed separately below. <br />• Treatment Facility B receives runoff from the tipple area, including the Belt Outback coal stockpile. Upstream of <br />the treatment facility is a clean-out sump, which captwes wash-down water and associated suspended materials <br />from the tipple. This sump is cleaned out periodically throughout the yeaz. The treatment facility is an H-shaped <br />pond, which dischazges to Foide] Creek. <br />TCC will survey the facility every three years, with the date of the 1999 Pemilt Renewal being yeaz-one. <br />Therefore, the first survey will be conducted during 2001. The survey will be used to determine if sediment <br />removal is required, with the criteria that sediment accumulation increased by 40 percent from the prior survey. If <br />sediment removal is required, the dredged material will be hauled to the refuse pile or pit for disposal. <br />During the NPDES visits, the flume will be visually inspected to detemvne that it is working correctly. Repairs, <br />such as leveling, assuring free dischazge, and removal of accumulated sediment in measuring devices will be done <br />on an as-needed basis. <br />The facility will be removed when it is no longer needed. The H-shaped pond will be backfilled with adjacent <br />material and graded to blend with the surrounding topography. <br />In reference to Pond C, the structure controls runoff from the old train loadout area. During its history, the pond <br />has dischazged infrequently and only holds a minor amount of water during spring runoff. TCC will survey the <br />pond as per the schedule given for Treatment Facility B. The same criteria given above will be used to detemune if <br />the pond requires cleaning. L` so, the material will be removed and hauled to the refuse pile or pit for disposal. <br />During the quarterly pond inspection, the outlet works of the ponds are inspected to determine if any maintenance <br />• work is required. Notes aze made of any appropriate maintenance required. Based on these notes, the appropriate <br />maintenance is performed. <br />When the pond is longer required, it will be removed. The outlet works will be removed, and the embankment <br />pushed-in to blend with the surrounding topography, then the area will be topsoiled and seeded. <br />Pond D controls runoff from a portion of the surface facilities, dischazge from the pit and refuse pile, and <br />underground mine dischazge. TCC will survey the pond as per the schedule given above. The same criteria given <br />above will be used to determine if the pond requires cleaning. If so, the material will be removed and hauled to the <br />refuse pile or pit for disposal. <br />The pond is visited during the NPDES sampling and the flume is checked to detemune if it is functioning correctly. <br />Any problems are noted, and repairs are made as needed. Pond D is an MSHA pond, subject to monthly <br />inspections. The outlet works aze inspected and maintenance or repairs completed as necessary; typically limited to <br />removing vegetation from the discharge orifices. <br />The pond will be removed when it is no longer needed. The embanlanent will be graded in and blended with the <br />surrounding topography and the outlet works removed. The stone in the emergency spillway may be reclaimed or <br />placed in the pond excavation as part of the backfill. The area will be topsoiled and seeded. <br />In reference to Pond E, it controls runoff from a segment of the surface facilities prior to discharging to Foidel <br />Creek. TCC will survey the pond as per the schedule given above. The same criteria given above will be used to <br />determine if the pond requires cleaning. If so, the material wilt be removed and hauled to the refuse pile or pit for <br />disposal. <br />• <br />TR06-52 ?.OS-76.1 02/17/06 <br />