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• <br />2.04.7 Hydrology Description <br />The surface waters that will receive run-off from the area affected by the <br />underground workings are shown on Map 23. Both East Salt Creek and Big <br />Salt Wash will receive run-off from the area affected by the underground <br />mine. Only East Salt Creek has the potential to receive run-off from the area <br />disturbed by the underground mine. <br />Surface water flowing down the ephemeral drainages tributary to East Salt <br />Creek and Big Salt Wash is not used directly by local landowners. The <br />contribution of the ephemeral drainages to the local irrigation budget is <br />believed to be negligible. The ephemeral drainages only flow during spring <br />snowmelt and significant precipitation events. Run-off during spring <br />snowmelt does not help the irrigation budget. Run-off resulting from <br />significant precipitation events is likely to produce sediment laden water that <br />could damage the irrigation structures. <br />• <br />• <br />(4)(b) The location of monitoring stations used to gather data for water quality and <br />quantity is shown on Map 9, Hydrologic Monitoring Location. The elevation. of, <br />the stations is depicted on Map 9 and tabulated in Volume III Exhibit 3. <br />(4)(c) See Maps 10 & 11 which present the upper and lower perched water bearing <br />zones respectively. <br />(4)(d) See Map 9 Hydrologic Monitoring Location and Map 23, Water Rights <br />Location. <br />(4)(e) The location of existing areas of spoil, waste and non-coal waste is shown on <br />Map 25, Previously Mined Areas. <br />(4)(f) There are gas wells within the adjacent area are shown on Map 9. All water <br />wells within and adjacent to the permit area are shown on Map 23, Water <br />Rights Location. <br />(4)(g) The locations of test borings and core sampling are shown on Map 6, <br />Structure Contour Map, Top of Lower Cameo Seam <br />(5) No response required. <br />Permit Application <br />2.04-40 <br />06/08