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All EeMcnt Yon il t2 nraminrd cuLrWrly by Zhe <br /> We reports will W subnittad to the MAW, for Vba foll lv- ' <br /> pie wpaye iron the Cownsidn side of ! Ae urbwnny2oL. <br /> Erosion of anhanInn"t sinpai . <br /> Obstructicri to emerqencZ and/or principal vpilly- ` n . <br /> ProperIV cleaned and waintainud dcuateriog duvicun , <br /> Sediment s tor.aga volune. <br /> Sloughh, tension cracks, pLping, utc. <br /> Sedimentation ponds will be removed after disturbed areas haves <br /> restored and revegetatod, followinj mine closure , in ELCCOWOnS'--' <br /> with the post-nino reclamation plan. KDCh nond will to rOIOVW <br /> unless approved for retention as part of the post mining lan6 4n .' <br /> and Oe area disturbed by the pond will be ragraded, topsoilao aa(,: <br /> ravegetated. <br /> Reclamation of sedimentation ponds will be accomplished followipq <br /> nine abandonment, although ponds approved for retention in supyor-: <br /> of the post mine land use plan will remain. They will be reyGved <br /> after the disturbed areas have been restored and revegetate! ill <br /> accordance with the post mine reclanation plan. The reclamaoj( a oj- <br /> the ponds wil be accomplished when the 6rainagas meet applicnb! ,-:� <br /> water quality standards . Whan the sedimentation pond is renn ;e&, <br /> the disturbed area will be regraded, topsoiled and revegetated. <br /> Small Area exemptions have been approved for the following areas : <br /> Southeast corner of the Mine Uo. 4 bench. <br /> Mine No. 3 lower coal storage pad. <br /> Mine No. 3 upper storage pad <br /> Mine No. 3 lower coal storage bin pad <br /> Mine No. 1 powder magazine <br /> Mine No. 4 powder magazine <br /> Adit/Rock Tunnel Area powder magazine <br /> 7 . Discharge Standards. <br /> The sedimentation ponds have been designed to provide a minin'tin <br /> sediment storage of 0 .1 acre feet of sedf ient per acre of disturbec' <br /> land, or designed to contain the 3 year sediment storage from th.-- <br /> Oiscurbed area using the Universal Soil Loss Equation (USIE) . TAO <br /> designed retention tine of the ponds is 24 hours , with dewatering <br /> devices of either a valve activated or T-culvert Oscharge syste-.-1 <br /> or unlined impoundment natural filtration. <br /> 20 Revised 6/9:- <br />