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52,05 APPLICATION FOR PERMIT FOR SURFACE OR UNDERGROUND MINING ACTIVITIES -- <br />MINIMUM REQUIREMENTS FOR OPERATION AND RECLAMATION PLANS. <br />2.05.6 Mitigation of Surface'Coal Mining Operation Impacts. (Cont'd.) <br />(3) (b) (i) (Cont'dJ <br />access road used by recreational and summer <br />residents. No additional sedimentation or <br />erosion is expected by changing the route from <br />the existing configuration. <br />In summary, surface water on lands adjacent to <br />tl~e disturbed Orchard Valley West Mine site is <br />protected in Cwo basic ways. First, all water <br />up-drainage of the disturbed area is routed <br />around [he operation by means of a diversion <br />ditch. '[fie diversion ditch has been designed <br />[o contain and route away a 100-year, 24-hour <br />storm event. <br />Secondly, all water from disturbed lands with- <br />i~i the disturbed area will be routed through <br />$E ate and Federally-approved sedimentation fa- <br />cilities. Any discharge from the sedimenta- <br />tion pond must meet all State and Federal <br />. quality standards. ,• <br />~'~~'•~`~~ 'Becaus'e~'`of the•"difficul[y~ in constructing a <br />sediment pond on the outslope of the embank- <br />ment area, an exemption to sedimentation fa- <br />cilities was granted for these areas. Appro- <br />priate revegetation efforts such as mulching, <br />erosion control matting, etc, will ensure low <br />sediment levels. <br />Specific information on the sedimentation <br />ponds and site drainage plan may be found in <br />Section 2.05.6(3)(a) and 2.05.6(3)(b). <br />Because drainage from the OVWM water tank and <br />ventilation shaft areas could not be diverted <br />to Che existing sedimentation pond at the.mine <br />site, CWI has proposed a small area exemption <br />to sedimentation facilities for this area. <br />The sites would be revegetated and a siltation <br />fence constructed to control sedimentation <br />from the site. Refer to the small area exemp- <br />tion application in the Drainage - Ditch De- <br />sign ~ Location Appendix in Voleane 8, <br />~nr,= r-~~~r.~r•~ r,Yv ac ~ ~ -• ~.av..+r rta: 5icirr;>,•; -•:a~r• ., /+dded 10 /lz/86 <br />... .} 'r.r: ;,; 1;. •;•R ,. ;r:.. Revised 10/Oi/87 <br />Revised 03/28/88 <br />'7k-z&/R~v-o3 109 <br />IZ//4~9 9 <br />