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hill and has a protective berm on the outer edge of the road. The berm effectively <br />prevents any significant drainage off the outslope of the road. Drainage at the toe <br />• of the cut slopes is collected by a drainage ditch which routes runoff to <br />Sedimentation Pond No. 5. Most of the light-use roads involve such limited <br />disturbance areas that drainage control is not a significant consideration. <br />However. EFCI has constructed roadside ditches for most of these roads which <br />connect with the mine drainage network. <br />Upon completion of mining, light-use roads will be reclaimed by ripping road <br />surfaces to alleviate compaction, grading road areas to blend with surrounding <br />terrain, and revegetating road disturbance areas. The mine haul road, the light- <br />use road servicing the south mine fan installation, and the light-use road to the <br />Newlin Creek topsoil stockpile will be retained as post-mining roads to provide <br />continued access for the existing owner and support post-mining land uses. Prior <br />to abandonment, EFCI will obtain a signed request from the landowner to retain <br />the haul road. In addition, EFCI will complete and submit a stability analysis of the <br />haul road at least two months prior to abandonment. If the stability analysis <br />identifies any areas having significant potential for long-term instability, EFCI will <br />• develop, review with the CMLRD, and implement appropriate remediation <br />measures prior to abandonment. <br />Water Treatment Svstem <br />The water treatment system consisting of a 600 gallon mixing tank, three (3) 2,500 <br />gallon settling tanks, and a 1,200 gallon holding/sampling tank, was installed <br />adjacent to Water Treatment and Recycle Pond 2. The components and proposed <br />operation of the water treatment system are illustrated by Figure 19, Mine Water <br />Treatment Facility Schematic. Preliminary testing of the water treatment system <br />was not successful. System components were apparently not large enough to <br />provide for effective mixing and settling given actual flow volumes. Plans for use <br />of the water treatment system were abandoned. Dorchester, and subsequently <br />EFCI, continued to discharge excess water directly from Pond 2. <br />As mine development progressed, increasing quantities of mine inflow were <br />• encountered in the north and south submains. Increased dewatering requirements <br />resulted in increased discharge from Pond 2 and TSS levels. <br />MR-44 2.05.3-42 Revised -May 2002 <br />