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-14- Surface Water Information The surface water information within the permit revision application is found in Sections 2.04.7 and 4.05 of Volume I, Exhibits 6 and 10, Figures 4, 5 and lU, Tables 2, 7, 11 and 12; and Maps 9, 10 and 14. Additional information is located in Permit No. 79-177. A description of surface water occurrence, surface water monitoring and mining impacts on surface water within the permit and adjacent areas can be found in Section VIII., "Probable Hydrologic Consequences of f4ining and Cumulative Hydrologic Impact Study" of this document. The permit revision application is in compliance with the hydrologic balance requirements. VII. Alluvial Vallev Floors -Rules 2.06.8 and 4.24 Map 9 of the Foidel Creek Mine permit application and ~~1ap 6 of Permit No. 79-177 identify unconsolidated streamlaid deposits in and adjacent to the proposed permit area. Areas shown on Map 6 that lie along Middle Creek or on Foidel Creek upstream of the proposed mining operation would not be affected and need not be considered further. Areas of unconsolidated streamlaid deposits along Foidel Creek and Fish Creek that are located geographically adjacent to the proposed mining operation and downstream from the mining operation could potentially be affected by the mining operation. The applicant's discussion of probable hydrologic consequences indicates that the discharge of water from the mining operation would affect water quality in the lower reaches of Trout Creek. Therefore, lower Foidel Creek, Middle Creek, and the lower reaches of Trout Creek are hydrologically adjacent to the Foidel Creek underground mine and must be considered in the alluvial valley floor determination. (Some information on these downstream areas is included in the Energy Mine No. 3 permit application.) Alluvial valley floor determinations and the appropriate findings have been made for Fish Creek, Foidel Creek, Lower Middle Creek, and Lower Trout Creek. Fish Creek Map 6 of the Eckman Park permit application shows unconsolidated streamlaid deposits located along Fish Creek beginning several miles upstream of the proposed mining operation down to the confluence with Trout Creek. The permit application concedes that Fish Creek has been determined to be an alluvial valley floor based upon the capability for subirrigated agricultural activities. The applicant has not identified any historic or existing flood irrigated areas along Fish Creek. Records of the State Engineer's Office show several existing stream diversions located on fish Creek, both upstream and downstream of the proposed mining operation. Fish Creek, therefore, apparently has sufficient water available to support flood irrigation. Fish Creek is, therefore, found - to be an alluvial valley floor because of both flood irrigation and subirrigation capabilities.