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Final Technical Report, 2014 Monitoring Well Rehabilitation Program Bowie Mine 19 <br />Table 2. Water Quality Data Summary for Well 201O -1SS <br />Well ID: 2010 -1SS' <br />Sample Collection Date <br />10/24/2013 <br />10/16/2014 <br />Analytical Laboratory <br />Accutest 2 <br />Laboratories <br />Laboratory Sample ID <br />D63625 -1 <br />Baseline <br />9.88 <br />FIELD PARAMETERS <br />Units <br />Min <br />Ave <br />Max <br />Static Water Level <br />Feet <br />1086 <br />1096 <br />1100 <br />1091.75 <br />1092.4 <br />Water Elevation <br />Feet <br />6447 <br />6455 <br />6462 <br />6455.25 <br />Field Comment <br />See footnote <br />See footnote <br />pH <br />s.u. <br />12.3 <br />12.6 <br />12.9 <br />12.6 <br />9.88 <br />Conductivity <br />µmhos /cm <br />2400 <br />3275 <br />4500 <br />2400 <br />378 <br />Temperature <br />Celsius <br />22.8 <br />25.6 <br />26.8 <br />25.8 <br />20.3 <br />LAB PARAMETERS <br />Bicarbonate <br />mg/L <br />10.55 <br />28.21 <br />126.36 <br />12.18 <br />91.5 <br />Carbonate <br />mg/L <br /><MDL <br />129.84 <br />148.61 <br />148.61 <br />45.4 <br />Chloride <br />mg/L <br />55.09 <br />89.45 <br />104.73 <br />104.73 <br />8.7 <br />Conductivity <br />µmhos /cm <br />1690 <br />2523 <br />3180 <br />2830 <br />336 <br />Hardness <br />mg/L <br />294.89 <br />417.12 <br />1 548.09 <br />548.09 <br />15.4 <br />Acidity <br />mg /L <br /><MDL <br />7 <br />8 <br />8 <br />Nitrate - Nitrite <br />mg/L <br />0.061 <br />2.150 <br />6.230 <br />1.32 <br />Nitrogen - Nitrate <br />mg /L <br /><0.010 <br />Nitrogen - Nitrite <br />mg/L <br /><0.0040 <br />Ammonia <br />mg/L <br />0.52 <br />3.62 <br />12.67 <br />2.18 <br />0.50 <br />pH <br />su <br />11.5 <br />1 11.7 <br />11.8 <br />11.58 <br />9.74 <br />Phosphate <br />mg/L <br /><MDL <br />0.056 <br />0.056 <br /><MDL <br />Phosphorus, Total <br />mg/L <br />0.071 <br />Residue Filterable -TDS <br />mg/L <br />1016 <br />1782 <br />2346 <br />2318 <br />253 <br />Sulfate <br />mg/L <br />23.87 <br />35.32 <br />39.66 <br />39.66 <br />14.3 <br />Arsenic (Dissolved )2 <br />mg/L <br />0.010 <br />1 0.022 <br />0.040 <br />0.016 <br /><0.025 <br />Cadmium (Dissolved )2 <br />mg/L <br />0.006 <br />0.02 <br />0.02 <br />0.02 <br /><0.010 <br />Calcium (Dissolved )2 <br />mg/L <br />111.0 <br />132.4 <br />162.4 <br />133 <br />6 <br />Iron (Dissolved )2 <br />mg/L <br />0.02 <br />0.16 <br />0.38 <br />0.38 <br />0.111 <br />Iron (Total )2 <br />mg/- <br />0.18 <br />1.07 <br />5.14 <br />0.21 <br />4.31 <br />Magnesium (Dissolved )2 <br />mg/L <br />0.05 <br />0.13 <br />0.18 <br />0.16 <br /><0.2 <br />Manganese (Dissolved )2 <br />mg/L <br />0.006 <br />0.009 <br />0.010 <br />0.01 <br /><0.005 <br />Manganese (Total )2 <br />mg/ <br />0.02 <br />0.04 <br />0.13 <br />0.02 <br />0.0621 <br />Mercury (Dissolved )2 <br />mg/L <br />0.00003 <br />0.00008 <br />0.00015 <br />0.00011 <br /><0.0001 <br />Selenium (Dissolved )2 <br />mg/L <br />0.002 <br />0.005 <br />0.007 <br />0.006 <br /><0.050 <br />Sodium (Dissolved )2 <br />mg/- <br />188.6 <br />217.6 <br />302.0 <br />188.6 <br />73.8 <br />Zinc (Dissolved )2 <br />mom- <br />1 0.01 <br />0.04 <br />0.09 <br />1 0.02 <br /><0.03 <br />Adapted from Bowie (2014b). <br />1 Note: This summary table only includes baseline data and data from the last sampling round before the well rehabilitation <br />program began (October 2013) and the first sampling round after the rehabilitation program was completed in 2014. <br />2 Note: Designated values for samples collected on October 16, 2014 were converted from pg/L to mg/L for comparison to <br />baseline and historical data. <br />November 2014 HydroGeo, Inc. <br />