Laserfiche WebLink
Pond Operation, Maintenance and Removal <br />All of the ponds located at TCC's surface facilities., except for Pond B, have risers with orifices as the primary <br />• spillway. Emergency spillways are open channels designed to pass the required event. The risers are inspected on <br />a weekly basis at the MSHA ponds (D and G) and quarterly at all other ponds. The visual inspeMions provide <br />information on the condition of the primary and emergency spillways and embankment. Any maintenance items <br />are noted and repaired in a tir~ly fashion. <br />0~ <br />Sediment levels in the various ponds will be surveyed every three years. If the sediment level is 60% of the design, <br />the pond will be scheduled for cleaning. The cleaning will typically be done during late summer or fall to allow for <br />good working conditions. Material removed from the pond will be placed in the Pit 2 area. <br />When TCC has shown the ponds are not required to insure compliance with discharge permit requirements, they <br />will be removed. The removal will include salvaging available topsoil from the embankment and adjacent azea, <br />removal of primary and emergency spillways, grading the pond in to blend in with surrounding topography, / <br />replacing topsoil and seeding with approved seed mixture. The reclaimed pond(s) will be monitored as per the (S~" <br />requirements presented in the reclamation plan. <br />Summary <br />U summary, the existing sediment control facilities were adapted for use in handling and treating water discharge <br />from the Foidel Creek Mine area. NPDES Permits will be obtained for any new surface discharge points. <br />Monitoring of flow rate and quality of effluent for ponds B, C, D, E, F, G, and T will continue as required by <br />NPDES permit CO-0027154. <br />C~ <br /> <br />"`SD <br />f <br />~r h <br />\~~ <br />a~ <br />\~\ <br /> <br />4~ ~' <br />~ ~ ,/ <br />ntY ~~! <br />/ ~~ \ ~ r <br />Permit Renewal No. 3 Tab 1 Page 5 1/15/00 <br />