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~' <br /> <br />Ground 'dater Hydrology -Rules 2,04,5, 2.04,7, 2.05,6(3) and 4.05 <br />Information on ground water can be found in Exhibits 4, 7 and 14 of the permit <br />renewal application. <br />The operator has submitted ground water quantity and quality data collected <br />over a period of two years. This baseline data was collected at four <br />locations within the mine and at the point where the water leaves the <br />abandoned Nu i4ine adit approximately one mile northwest of the O.C. Mine No. c <br />surface facilities. Small quantities of water seep from the exposed face of <br />the mined areas. The water appears to enter the coal bed through the faults <br />or fractures in the area. This interpretation is supported by the geologic <br />map and cross-sections of the permit area. The mapping information indicates <br />that the mine is bounded on three sides by faults. The small amount of water <br />that collects in the mine is pumped when necessary to the bottom of the slope, <br />where it then flows through a connecting entry into the abandoned Nu Mine <br />workings. The water flows through the Nu Mine workings and exits from the <br />caved portal. The maximum flow that has been measured from the Nu Mine adit <br />has been 1.5 gallons per minute. <br />Ground water quality samples were collected over the baseline period according <br />to the guidelines provided by the Division. The samples met all of the <br />effluent standards set forth in the applicable HADES permit. None of the <br />water quality variables sampled were found to be at levels which pose a hazard <br />to the environment. Samples taken from the Nu Mine discharge have <br />consistently had less than 700 milligrams per liter total dissolved solids and <br />a neutral pH. A modified water quality monitoring program was initiated <br />during 1986 based on these results. More extensive analyses are required only <br />if pH or conductivity indicate conditions different from baseline monitoring. <br />This modified program is described in Appendix 16. Additional information on <br />water quality can be found in Exhibit 4, <br />The opera±ion is in compliance with the requirements of this section, <br />VI. Surface Water Hydrology - Rules 2.04,5, 2.04.7, 2.05.3(4), ?.05.6(3) and <br />4, <br />Information on surface water hydrology can be found on pages 7, 8, 9 and <br />Exhibit 1 of the permit. Information on the sediment control system can be <br />found in Exhibit 8. <br />The immediate mine area contains no flowing streams or springs, Surface <br />runoff flows through normally dry gulches to Carbon Creek and then to Ohio <br />Creek, There are no streams, springs, wells, or irrigation ditches within a <br />one-mile radius of the permit area, There are two stock ponds within a mile <br />of the pernit area that catch water after major precipitation events. The <br />water flowing from the Nu Mine adit is the only consistent surface flow in the <br />area, All surface water from the O.C. Mine No. 2 disturbed area passes <br />through a sediment control system. Water from undisturbed areas is routed <br />around the disturbed area by two diversion ditches. <br />-9- <br />