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2.05.6(3)(b)(iv) <br />(iv) The following monitoring plan is designed to <br />provide data which will verify that the Somerset Mine and the Sanborn <br />Creek Mine will not have significant adverse impacts on the surface or <br />subsurface water which is within or adjacent to the permit area. The <br />sample points, shown on drawin g E8-3286, are: <br />Station Frecuency Elevation Location Water Type <br />H-1 Note 1 6100 Hubbard Creek Surface Water <br />H-10 Nota 1 6376 Hubbard Creek Groundwater <br />B-6 Note 1 6782 Bear Creek Groundwater <br />S-1 Note 3 6080 Sanborn Creek Surface Water <br />S-2 Note 3 6030 Sanborn Creek Surface Water <br />E-1 Note 2 6057 Portal Drop Inlet Surface Water <br />U-1 Note 2 6090 Unnamed Drainage Surface Water <br />C-1 Note 2 6070 Coal Gulch Surface Water <br />NF-1 Note 2 6080 Gunnison River Surface Water <br />NF-2 Note 2 6010 Gunnison River Surface Water <br />SC-1 Note 4 6106.1 Dr'_'_1 Hole Groundwater <br />SC-2 Note 4 6227.8 Drill Hole Groundwater • <br />SC-3 Note 4 6227.8 Dri11 Aole Groundwater. <br />SP-1 - 6 Note 5 8000-8200 Spring Groundwater <br />SP-7 - 11 Note 6 6100-6200 Spring Groundwater. <br />AG-1 Note 2 6185 "A" Gulch Surface Water <br />BG-1 Note 2 6200 "B" Gulch Surface Water <br />CG-1 Note 2 6190 "C" Gulch Surface Water <br />HN-1 Note 3 6200 Hawksnest Creek Surface Water <br />HG-1 Note 2 6200 Hoopla Gulch Surface Water <br />BC-1 Note 2 6240 Bardine Canyon Surface Water <br />WSC DH1 2 Note 7 7553 Coal Gulch Ground Water <br />NOTES: <br />1. April, June, August ~ October field parameters and fall suite. <br />2. Monthly field parameters, cuar=erly full suite. <br />3. Monthly field parameters and full suite. <br />4. Monthly field parameters, quarterly full suite. <br />5. Monthly field parameters April through October through June 1994 <br />then recommence one year prior to and continue for two years after <br />retreat mining. <br />6. Monthly field parameters through June 1994. Monthly flow <br />thereafter. Recommence monthly field parameters one year prior to <br />and continue for two years after retreat mining. <br />7. Annually in June field parameters and full suite. <br />Full suite analysis parameters are shown on Page 2.04-39e. Field <br />parameters include flow or water level, pH, temperature and conductivity. <br />The Sanborn Creek Mine water discharge, outfall 001, will be <br />monitored according to the NPDES discharge permit. A flow meter will be <br />installed to measure flows from the mine dewatering system. <br />Downstream Sanborn Creek (S-2) will only be monitored if upstream <br />Sanborn Creek (S-1) has flow. <br />2.05 - 46iii <br />Rev. 1:08-19-93 <br />