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2.05.3 <br />Sediment pond K collects run-off from the batch weigh loadout and surrounding <br />area. Pond K is a typical sediment pond, capable of containing the run-offfrom a 10- <br />yearevent with a spillway system designed to handle the peak flow generated by the <br />25-year storm event. <br />Sediment pond F collects run-off from the new gob disposal area. Pond F is a <br />typical sediment pond, capable of containing the run-off from a 10-year event with a <br />spillway system designed to handle the peak flow generated by the 25-year storm <br />event. Dewatering of Pond F will be by pumping. <br /> <br />(i) General Drainage Plan <br />(i)(A) Sediment ponds B, C, J K, and F and the general drainage plan for the main site, <br />loadout and new gob pile were prepared under the direction of J. E. Stover, Colorado <br />Professional Engineer, No. 19230. Sediment pond D and the general drainage plan <br />for the gob pile was prepared under the direction of Allan J. Breitenbach, Colorado <br />Professional Engineer, No. 15247. <br />(i)(B) A description of the ponds is presented above. Detail drawings of ponds B, C, J, K <br />and F are presented on Map Nos. 22-B, 22-C, 22-J, 22-K and Volume IX Figure 3 <br />respectively. A detailed drawing of the gob pile sediment pond is presented in <br />Volume 4, drawing 95266-04. <br />(i)(C) The preliminary hydrologic and geologic information required to assess the <br />hydrologic impact of the structure is presented in Volume III, Exhibit 8 for ponds B, C, <br />J & K, Volume IV, Appendices A and B for the refuse pile pond and Volume IX, <br />Appendix B, for Pond F. <br />(i)(D) No underground mining has occurred under any of.the sediment ponds and none is <br />anticipated. <br />(i)(E) 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, loadout <br />and new gob pile were prepared under the direction of J. E. Stover, Colorado <br />Professional Engineer, No. 19230. Sediment pond D and the drainage plan forthe <br />gob pile was prepared under the direction of Allan J. Breitenbach, Colorado <br />Professional Engineer, No. 15247. <br />TR-38 <br />f J ~~~0 VE11 <br />u~4/o5 <br />2.05 - 30 - <br />03/05 <br />