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0 <br />• <br />2.05.3 <br />(i) General Drainage Plan <br />Sediment ponds B, C, J, K, and F and the general drainage plan forthe main <br />site, loadout and new gob pile were prepared under the direction of J. E. <br />Stover, Colorado Professional Engineer, No. 19230. Sediment pond D and <br />the general drainage plan for the gob pile were prepared under the direction <br />of Allan J. Breitenbach, Colorado Professional Engineer, No. 15247. <br />A description of the ponds is presented above. Detail drawings of ponds B, <br />C, J, K, and F are presented on Map Nos. 22 -B, 22 -C, 22 -J, 22 -K, and <br />Volume IX Figure 3 respectively. A detailed drawing of the gob pile sediment <br />pond is presented in Volume 4, drawing 95266 -04. <br />The preliminary hydrologic and geologic information required to assess the <br />hydrologic impact of the structure is presented in Volume III, Exhibit 8 for <br />ponds B, C, J, and K, Volume IV, Appendices A and B for the refuse pile <br />pond and Volume IX, Appendix B, for Pond F. <br />No underground mining has occurred under any of the sediment ponds and <br />none is anticipated. <br />Not applicable. <br />(ii) Detailed Design Plans <br />(ii)(A) Sediment ponds B, C, J, K, and F and the drainage plan for the main site, <br />loadout and new gob pile were prepared under the direction of J. E. Stover, <br />Colorado Professional Engineer, No. 19230. Sediment pond D and the <br />drainage plan for the gob pile were prepared under the direction of Allan J. <br />Breitenbach, Colorado Professional Engineer, No. 15247. <br />(ii)(B) The following design specification for the sediment ponds is adapted from <br />Rule 4.05.6(11): <br />The embankment foundation area shall be cleared of all organic matter, all <br />surfaces sloped no steeper than 1 h:1 v, and the entire foundation surface <br />scarified. <br />• PR -12 2.05-39- <br />02/10 <br />