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Page 5 Keith Kirk, Mike McCarthy January 2, 1980 15. Section 816.71(1) - Exhibit 9 indicates a range of sizes for the toe buttresses, EFC should indicate the exact size of the buttress to be used. 200 16. Section 816.72 (j) - As per CTL/Thompson's it is not clear if EFC will utilize CTL/Thompson representatives to monitor the construction of the toe buttress as per his recommendation. QVAr.if~e0 En6~nEER 17. Section 816.72 - (Disposal of excess spoil: Valley Fills) - In view of the fact that this application permit is to replace the current permits for Energy 111 6 2 mines, the submittal should contain a dis- cussion of the fill associated with the 16284 box cut. Section 816.72(b)(i)(ii) - Comparing Figures 2 ~ 3 in Exhibit 9, it ~• does not appear that the underdrains extend from the toe to the head of fill. This is contrary to the requirements of this sub- section. vAAiM~CE 19. Section 816.89(a) - As mentioned in previous memo, the other two ponds located adjacent to the shop facilities need to be reconstructed. 20. Section 816.95 (Air resources protection) - The application does not include sufficient information to demonstrate compliance with all parts of 816.95(b). We may want to grant variances for 816.95(b)(3), (8), (9), (12), and (16). 21. Section 816.95(c) (Air Resources Protection) - The regulatory should make the determination that no additional fugitive dust control measures are required, If additional measures are required they will be brought to the attention of EFC. 22. Section 816.97(c) (Protection of fish, wildlife, and related environmental values) - Please refer to prior memo, item ~i10 under Operation Plan. 23. Section 816.97(d)(4) (Protection of fish, wildlife, and related environ- mental values) - As stated in the application, a sage grouse strutting ground is located within the permit area, therefore it is possible that EFC may have to undertake a habitat enhancement program to mitigate adverse effects on the sage grouse. 24. Section 816.101(a) (Backfilling & Grading: General Requirements) - The box cut for the 7400 pit should also be included in the narrative on page 816-125.