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'~~ `<< MEMO KEITH KIRK, MIKE MCCARTHY DECEMBER 26, 1979 PAGE -4- 5) The applicant should demonstrate that sufficient material exists in the final six spoil ridges to fill the final cuts of the operation. This should be done for each area where this request is being made. The information is required to evaluate the variance request of six spoil ridges. 6) The applicant has not indicated the 1987 mining unit on the Energy ~llb2map. 7) Refer to 780-13. Further explanation of the dozer pits is required, for example, where is the material from the first cut placed and what is the amount of swell associated with this type of mining. 8) Refer to 780-15. In paragraph 4 it states that no more than 4 spoil ridges will be in place at one time. This conflicts with prior statements advising that six ridges are required to fill final cuts. This should be clarified. 9) Refer to 780-28. Applicant states that all the ponds have liners. How- ever, inspection of the site reveals that only one pond has a liner. The other two ponds will need to be reconstructed. 10) Refer to page 780-38. The lab facility is not included as a pre-existing structure. Please clarify. 11) Refer to page 780-41. The applicant should indicate what decision was reached on construction of power lines. 12) Refer to page 780-56. The area to be worked in the old spoils is not included in the discussion. 13) Refer to page 78-75. The applicant should indicate what conditions will warrant the application of a mulch. The applicant should demonstrate that the material to be reseeded meets the requiements of 816.22. Should cross-reference to mulching rate described in other sections. 14) Refer to page 780-76. What is the criteria for determining the trouble- someness of coal dust? 15) Refer to page 780-77. Further discuss the scrapper operation as it relates to compaction of the topsoil as in other sections it states that tospoil well be redistributed in a rough condition. What effect does the compaction of the topsoil have on its ability to act as a growth media? 16) Refer to page 780-94. The discussion in paragraph 3 conflicts with prior statements concerning sage grouse strutting grounds. ~~~ ~L~~` ' ~I `;~ 3 ~ „~., ;- ~ ~:~ fJ;-L_; i r7RnCC r y a..• /"~i7° (~7~ 17) Refer to 780-102. The applicant should analyze the redistributed topsoil to determine if fertilizers are required. If the wood chip mulch is utilized a nitrogen deficiency may occur and application of nitrogen fertilizers will required. (cont'd)