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• -21- • 1 `' Climatological Information and ?ir Resources - Rules 2.04.5, 2.05.=(2)(h), 2.05.6(1), and 4.1?. The appropriate information dealing with clima[olog;• and air resources at the site is contained in Sections 4.6 and 4.i of tine permit application. Salt Creek *lining Companr_ has included the required climatole~ical information for Grano ,function. ?:o site specific information is available. Salt Creek Mining Company has applied wi[h the Colorado Department of Health for an emissions permit to cover all aspects of the operation. The operation is in compliance uitl•~ the reouirements of this section. ils - Pules 2.04.°. 2.05.3(51. 2.05.4(31(di, and 4.06 Information dealing with soils resources and topsoil handling procedures can be located in Sections 3.2, 3. 3, and 4.4 ci \rolume I of the perr~it application. These Sections provide the basis for the following analysis. i~•o *_opseil was stripped prior to the existing disturbance at the McClave Canvcn site. Future planned disturbances tehic'r~ :.ill occur after permit issuance are the proposed sediment pond censtruccion and topsoil storage area. Topsoil c;ill be stripped from the area e; the proposed sediment pond after removal of the vegetative cover. The soils map provided by the applicant (Figure '..4-1 - Soils ?lap Showing Depth assessment) shows site specific mapping of soils information at an Order I or II Level of intensity. This map, in conjunction with the Surface Water Control Systems map (Figure 2.2-3), indicates that the disturbance will affect the hihill Loam and Rivra Gravelly Sande Loam ;'ariant soils. These soils were sampled in the vicinit~• of the proposed disturbance and were anal}•zed b}• horizon to 70 + inches depth. The chemical data for the soils is presented i^. Table 4-4-6 of the application. The py values range from 7.3 to £+.2 for these soils (rihill and Rivra Variant;. Electrical conductivitc ranges from .4 to .9 m,;,hes/cm2 and scdiur.• absorption ratios are .2 to 5.6. Boron contents are .1 to .2 ppm. The analyses indicate that these soils are good sources for topsoil for use in reclamation of the mine. The applicant proposes to strip the :~ihiil Loar.: soil to a depth o_° 12 -inches and the P,ivra !%ariant to a depth of 1& inches. This will yield a volume of 900 BCY of topsoil from the disturbed area. Part cf this topsoil will be respread over one acre of the mine bench and the rest will be spread over the disturbed area of the sediment pond. These soils will be respread at a minimum depth of 4". P. por*_ior. of the bench and outslopes along the reclaimed road will not be tops oiled. These areas consist of fill which eras used for grading the road and original ground. The applicant has supplied a fey: analyses from grab samples of this material. P.lthough these analyses indicate that the material is suitable for reclamation, it is insufficient for the determination of reclamation feasibility.