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TABLE 2-1 <br />ALLUVIAL MONITORING HOLE WATER QUALITY PARAMETERS' <br />FIELD MEASUREMENTS LABORA TORY ANALYSIS <br />pH Bicarbonate Manganese <br />' Conductivity at 25° Boron Nickel <br />Temperature Calcium Nitrogen-Nitrate <br />Carbonate Nitrogen-Ammonia <br />' <br />Chloride Potassium <br />Copper Selenium <br />Fluoride Sodium <br />' <br />Iron Sulfate <br />Lead Total Dissolved Solids <br />' Magnesium Sodium Adsorption Ratio <br />'Groundwater holes in Leases C-8424 and C-8425 were sampled from the middle facie zone <br />' <br />and analyzed for these parameters prior to entering those leases, and will be sampled and <br />analyzed again prior to the wells being mined out or before bond release. <br />' • Dissolved metals analyses for alluvial and groundwater <br />As per the DMG permit requirement, water from the groundwater monitoring holes 29-4, 30-8, <br />31-7 and 33-8 in Leases C-8424 and C-8425 were sampled and analyzed during the 1996-1997 <br />water year. Appendix I of the Thirteenth Annual Hydrology Report provides the analytical <br />results. Monitoring hole 32-7M was sampled prior to being mined out in 2001. Data is provided <br />in Appendix C of the Seventeenth Annual Hydrology Report. <br />2.2 Summary and Analysis of Deserado Mine Hydrology Data <br />Data collected during this water year (October 1, 2001 to September 30, 2002) have been <br />summarized and compared with the data from the baseline hydrology inventory. Surface water <br />and ground water discussions are presented separately in the following sections. <br />2.2.1 ~a,Eound Water Monitoringpata Groundwater monitoring data consists of water levels <br />measurements. Tabulation of the data is inGuded in Appendix C. Hydrographs for the 16 <br />stations (monitor holes) from which water level data were collected are inGuded in Appendix D. <br />4 <br />