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William A. Bear <br />Page 2 of 2 <br />January 28, 2015 <br />b. Issue resolved; BRL provided design information for the Coverfill SAE Ditch as requested. <br />c. BRL provided revised designs for the lower (1%) segment of the East Clean Water Diversion <br />Ditch as requested. The previously approved design for the ditch was a triangular <br />configuration. The revised design indicates that the channel will be trapezoidal, but the <br />design for the trapezoidal channel is based on a bottom width of 0.00 ft. Please revise the <br />design information for the East Clean Water Diversion on page Volume XI, App. 8 -78 to <br />either specify a triangular channel, or provide a bottom width and revised design <br />information for a trapezoidal channel. <br />26. Issue resolved; BRL revised pages Exh -8 -31, Exh 8 -32, and Exh 8 -60 as requested. <br />Miscellaneous Items from BRL's January 28, 2015 response: <br />a. BRL provided revised design information for ditches D -C3 and D -C4 to reflect ground <br />conditions. The Division will approve the revised design information. <br />b. BRL reported the location and current disposition (replaced by ditch D -C14) of Culvert C9, <br />at Curve #6 of the main haul road, and modified Maps 15 -2, 20, and 21 -2 accordingly. The <br />Division will approve these modifications. <br />c. BRL revised Map 18 to reflect the currently approved disturbed area boundary. The <br />Division will approve this map revision. <br />d. BRL revised Map 20 to include the location of the water bar directing flow to ditch D -C4. <br />The Division will approve this map revision. <br />e. BRL provided revised designs to reflect the as -built construction of the East Diversion ditch <br />of Gob Pile #2. The Division will approve the revised designs. <br />Additional Item: <br />Please revise Map 22C to be consistent with the design information for the Ponds 8 and C <br />drainage area culverts and ditches located in Exhibit 8. <br />If you have any questions or need additional information, please contact me. <br />Sincerely, <br />Susan L. Burgmaier <br />Environmental Protection Specialist <br />cc: Tamme Bishop, J.E. Stover & Associates <br />