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2.05 APPLICATION FOR PERMIT FOR SURFACE OR UNDERGROUND MINING ACTIVITIES-- MINIMUM REQUIREMENTS FOR OPERATION AND RECLAMATION PLANS. • 2.05.6 Mitigation of Surface Coal Mining Operation impacts. (Cont'd.) (3) (b) (iii) (Cont'd.) SAR in water, TDS ratio (grav./calc.), total dissolved solids, and total suspended solids. The deep bedrock groundwater in the strata above and below the mined coal has poor quality, limited extent, low yield, and an excessive depth from the ground surface. Further detailed information is found in Section 2.04.7 (1). None of this water is beneficially used or adjudicated and the potential for future development and utilization is extremely low. Deep bedrock groundwater wells are monitored when accessible in accordance with Table 4B, Groundwater Appendix, Volume 4. None of the deep bedrock groundwater monitoring wells in the permit area can currently provide water quality samples or water level information. The pressure-driven sampling apparatus installed in the wells has proven to be ineffective and unreliable. As an alternative to obtaining water quality samples from deep bedrock groundwater wells, the operator collected water samples from underground in the mine workings in the event significant inflows are encountered. Significant inflows are defined as point source inflow events of greater than 5 gpm flow magnitude which persist for more than 30 days. Should inflows of this nature occur, The operator shall immediately notify the Division and obtain water quality samples on a quarterly basis throughout the duration of inflow. Underground • inflow sampling has stopped during the mine's period of inactivity. Shallow alluvial source groundwater wells are monitored when accessible in accordance with Table 4B, Groundwater Appendix, Volume 4. Selected shallow alluvial source groundwater wells are monitored semi-annually for water levels, field parameters, and water quality parameters. Collected samples are analyzed for alkalinity as CaCO3, bicarbonate as CaCO3, carbonate as CaCOj, dissolved calcium, chloride, conductivity @ 25° C, pH, Hardness as CaCO„ dissolved magnesium, dissolved sodium, sulfate, SAR in water, TDS ratio (grav./calc.), and total dissolved solids. The operator will revise Volume 4, Tables 3 and 4B as necessary with technical revisions to ensure that the appropriate springs and associated ponds, deep bedrock groundwater wells, and shallow alluvial source groundwater wells are monitored if mining progresses into new areas. Numerous springs and associated ponds, deep bedrock groundwater wells, and shallow alluvial source groundwater wells were temporarily dropped from the monitoring network as a result of TR-24. These locations TR 34 Revised 7/31/2001 ~/'/o ) 123