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C, • Mr. Rolad G. Obering - 2 - December 13, 1991 Exhibit C Item 9: There are several issues where minimization of the disturbance to the hydrologic balance is lnvoived. Since stripping of to~~sotl from the western area fs anticipated in advance of mining and locations of topsoil stockpiles are indicated to lie along these boundarle~s, how will runoff from these disturbed areas be prevented from moving westward and southward downslope beyond permit boundaries. Describe and then locate any proposed measures on map. Since much of. the lumber yard area will be subjected to use by haul trucks and mining equipment, how will runoff from these areas„ east and south of the berm and/or ditch at the base of the cut face, bE~ prevented from moving across the work area and south beyond ttie permit boundaries. Describe and locate any proposed measures on map.. Since a berm is described in the narrative as the device to ccm taro runoff from the cutslopes during mining but a ditch 1s indicated on reclamation map E-2, some clarification in the narrative needs: to be made 1f control measures are different at different times during mining and reclamation. W111 the ditch indicated allow discharge beyond permit boundaries or 15 it intended to retain all runoff within the permit area as the berm is stated to provide? Items 10 and 11: These are not referenced or addressed at all. Some comment is necessary to insure that these issues were at least: considered by the application. Item 12: These measures are presumably the same as requested under Item 9. Exhibit D Item 2: The reclaimed slopes indicated on Map E-2, if approved, will be required by the Division in order for the operator to secure release of reclamation liability. The enclosed reclamatlort cost estimate, made by the Division, is predicated on there being no grading and backfi111ng necessary to the western active mining area, only 1n ~~ achieving approved slopes in the eastern part of the site. A commitment is therefore necessary on the part of the operator not to exceed approved reclamation slopes in his mining of the western part of the site in order that adjustment of the reclamation cost estimate, to eliminate such steeper slopes, not be necessary. Special Note, page 2 of Exhibit D: Any areas not intended to be included by this application in the permit area should be omitted from the application and maps. If any possible use or disturbance of the eastern area 1s anticipated, 1t would be wise to leave the application d5 is.