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investigation and analysis, the applicant has predicted that worst-case inflows from <br />East Roatcap Creek would be 5.2 gpm and inflows from Steven's Gulch would be <br />5.7 gpm. These would increase to 33.5 gpm for the life of mine. Inflows below <br />East Roatcap Creek have averaged less than 1 gpm. A mitigation pl<~trt has been <br />approved that will replace any water lost by mining. <br />The hydrologic consequences of the mine are expected to be minimal. The <br />applicant reports that no degradation of water quality in surface streams is <br />expected. Any effluent will be treated as necessary to meet quality standazds prior <br />to dischazge. Although mine inflows aze currently small, if inflows aze encountered <br />the application contains a plan for a collection and treatment prior to discharge. <br />Conclusion - <br />An assessment of the probable hydrologic consequences of the mining <br />operation and an assessment of the probable cumulative impact of all <br />anticipated mining in the general area on the hydrologic balance has been <br />made. Pursuant to Rule 2.07.6(2)(c), the Division finds that the Bowie No. 1 <br />mining operation has been designated to minimize hydrologic impacts within <br />the permit boundary, and to prevent material damage to the hydrologic balance <br />outside the permit azea. <br />IV. Topsoil -Rule 4.06 <br />Since no topsoil was salvaged, an analysis of the original Orchard Valley Mine bench <br />material (Volume 9 -Soils Tes[ Appendix) was conducted. The analysis indicates that <br />the material is suitable as a plant growth medium. This is also true for the storage and <br />loadout areas. Vegetative growth on fill outslopes has occurred. At final reclamation in <br />these areas, the operator has committed to ripping and testing this material for fertility. <br />Fertilizers and amendments will be added as necessary. The area will then be seeded <br />and mulched. <br />Because of the limited available azea at the Bowie No. 1 West Mine, topsoil is stored in <br />two areas -outslopes of the portal bench and a topsoil stockpile north of the portal <br />bench. Topsoil on the bench outslopes was spread to a depth of approximately four feet, <br />seeded and stabilized with an erosion control blanket. The topsoil stockpile is protected <br />from erosion by seeding and mulching. Details aze located in the approved permit <br />application, Volume lA, Section 2.05.4. <br />During initial development of the West Ridge waste disposal pile, approximately 24 <br />inches of topsoil was salvaged. As waste pile expansion occurs. soil material will be <br />analyzed to determine optima] salvage depths. Currently, eight to nine inches of topsoil <br />is salvaged from this area. Topsoil is stockpiled and protected from erosion by seeding <br />and mulching. Of the four feet of cover placed over this waste disposal pile, the outer <br />eight to nine inches is topsoil. <br />33 <br />