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-13- <br />VI. Hydrologic Balance -Rules 2.04.5, 2.04.7, 2.05.3(4), 2.05.6(3) <br />and 4.05 <br />A. Ground Water Information <br />Ground water information within the permit application is found in Section <br />2.04.7 of Volume 1. Additional information is found on Map 1, Twentymile Park <br />Hydrology, Map 4a; Mine No. 3 Hydrology, Map 17; Stream Channel <br />Cross-Sections, Map 21a; Detention Basin Cross-Sections; Tables 26 and 30, and <br />Figures 6A, 66, and 8. <br />A description of ground water occurrence and mining impacts on ground water <br />within the permit and adjacent areas can be found in Section VIII, "Probable <br />Hydrologic Consequences of Mining and Cumulative Hydrologic Impact Study: of <br />this document. <br />B. Surface Water Information <br />A description of the surface water system in the proposed permit and adjacent <br />area is contained in Section 2.04.7, Volume 1 of the permit application. <br />Supporting information is given in Map 4a, Energy Mine No. 3 Hydrology; Tables <br />27, 28, and 29; and Figures 7, 9, and 11. <br />A description of surface water occurrence and mining impacts on surface water <br />within the permit and adjacent areas can be found in Section VIII, "Probable <br />Hydrologic Consequences of Mining and Cumulative Hydrologic Impact Study" of <br />this document. ,v~ /1 <br />C. Hydrologic Monitoring Plan '-r7w~ ^.`r~4f?~er~ ~,,f/~~0~ ~,~C/ <br />Hydrologic monitoring at the mine is being conducted to determine the effects <br />of the surface mining activities on the quantity and quality of ground and <br />surface waters and to verify predictions of probable hydrologic consequences <br />of mining. The proposed hydrologic monitoring plan for the Ener Mine No. 3 <br />is presented in Exhibit 15 (Volumehe permit application. <br />applicant has proposed to monit eep aquifer monitor wells, iv (,//an~ ~~ ~ <br />shallow aquifer monitor wells, fiv stream monitor sites, two ffluent monitor 7~b %/L.aZ <br />sites, and~two spoil monitor we s, as shown on Table A of Exhibit 15. The <br />locations o~ all hydrologic monitoring sites are shown on Map 4a of the permit <br />application. The hydrologic monitoring frequency will be conducted according <br />to the schedule in Table B of Exhibit 15 and the parameter list for sample <br />analyses is given in Table C of Exhibit 15. Results of water quantity and <br />quality monitoring at all designated monitor sites will be submitted to the <br />Division in the annual hydrologic monitoring reports. In addition, ~dPDES <br />discharge monitoring reports from the two discharge points at the mine will be <br />submitted to the Division on a quarterly basis. <br />The deep aquifer monitor wells included in the hydrologic monitoring plan are <br />008-77-35, 008-77-42, 008-77-43, 008-77-58, 008-79-6, 008-79-7, and 008-FM-6. <br />These wells are all located adjacent to and down gradient from the mine. They <br />are completed in the overburden aquifer, which includes the Wadge Seam and <br />overlying permeable strata. Up to five years of ground water monitoring data <br />