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<br /> <br /> <br />Mine Water COlWOI Plm1 <br />the ditch which is exempt from the requirements to pass disturbed area drainage through <br />a sediment pond. <br />The second small area exemption is located in the drainage leading to the Swale between <br />freshwater pond (FW-1) and sediment pond MB-1. This area is well vegetated, has slope <br />shape conducive to the reduction of sediment levels. A SEDCAD+ run is enclosed which <br />demonstrates that the discharge from a 10-year 24-hour storm event meets applicable <br />discharge limitations. An alternative run documents that the entire area could be gravelled <br />for use as a future on-coal storage bench and would still meet applicable effluent limitations. <br />A third small azea exemption has been designated west of the incised sediment pond IvIB-5. <br />This area is reclaimed and has excellent cover. Discharge from this area meets effluent <br />limitations as documented by the SEDCAD+ run. <br />Due to no runoff collection into the fresh water pond (FW-1) and method of operation, no <br />spillway discharge is included in this storm water analysis or design. <br />10 <br /> <br />