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controlling sedimentation during and after reclamation grading has been <br /> provided for the D/B portal area, and a generalized post-grading sediment <br /> control plan has been provided for the East Portal Area and the rail loadout. <br /> The operator has committed within Section V.B.6 of the application to provide a <br /> more detailed post grading sediment control plan and demonstration for the East <br /> Portal and rail loadout areas by March 15, 2000. <br /> The Division has granted a number of small area exemptions (SAE's) from the <br /> use of sediment ponds and treatment facilities, due to the limited size of the <br /> areas in question and due to the fact that ponds and treatment facilities are not <br /> necessary for the drainage from these sites to meet the effluent limitations of <br /> Rule 4.05.2, and applicable State and Federal water quality standards for <br /> receiving streams; and also due to the fact that no mixing of surface drainage <br /> from these areas with a discharge from underground workings will occur. The <br /> small areas to be exempted are listed in Section IV.J.5 of the application. <br /> Sedimentation demonstrations for the SAE's are provided in Illustration 44, of <br /> Volume 12, and the locations are shown on Map 147 (4.05.2(3)(b)(i)). <br /> B. Stream Channel Diversions <br /> I. The Division approved the diversion of an ephemeral stream draining at least <br /> one square mile. Scullion Gulch has been diverted with a large diameter pipe <br /> culvert such that it passes beneath the D Portal facilities area. The decision to <br /> approve this diversion is based on a finding that the proposed diversion meets <br /> the requirements of 4.05.18 and 4.05.4, applicable local, State, and Federal <br /> statutes and regulations and that the diversion is designed to safeguard public <br /> safety and to minimize adverse impacts to the hydrologic balance (4.05.4(1) <br /> and (4)). <br /> C. Surface and Ground Water Monitoring <br /> 1. The applicant will conduct monitoring of ground water in a manner approved <br /> by the Division. The ground water monitoring plan is as follows: (4.05.13(1)). <br /> a. Groundwater monitoring is conducted at sixteen bedrock groundwater <br /> wells at eleven locations and one alluvial well within and adjacent to the <br /> permit area. The stations are depicted on Map 137, and are identified as <br /> follows: <br /> 4-20U 2-17U <br /> 4-20L 2-17L <br /> QAL-5 <br /> 2-17TWM <br /> 29-4U 294M <br /> 20 <br />