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• • • <br />Table 7-10. Chemical Analyses of Groundwater <br />From the Wolf Creek Coal Seam <br />Seneca Mine, Routt County, Colorado. <br />Well No. GW-510 GW-S10 GW-510 GW-S10 GW-514 GW-514 GW-514 GW-514 GW-515 GW-S15 GW-515 <br />Aquifer: Wolf Creek Coal Seam <br />Date of Collection 11/8/79 11/8/79 8/7/80 11/20/80 11/7/79 11/7/79 8/7/80 11/20/80 11/7/79 8/7/80 11/20/80 <br />Analystst Peebody USGS Peabody Peabody Peabody USGS Peabody Peebody Peabody Peabody Peabody <br />FIELD PARAMETERS <br />Temperature (°C) 6.4 6.4 7,5 6.5 7.0 7,1 1,5 7,0 7.5 8.0 7,5 <br />Conductivity (umhos/cm @ 25° C) 150.0 750.0 750.0 950.0 975.0 875.0 2500.0 1700.0 <br />pH (units) 6.3 6,3 7,2 7,2 6.7 <br />LA80RATORY PARAMETERSI <br />Acidity (as CaL03)2 <br />Alka11n1ty (as CaC03) <br />Alka11n1ty, Bicarbonate (as CaC03) <br />Aluminum, Total <br />Antlaany <br />Arsenic <br />Barium <br />Boron <br />Cadmium <br />Calcium <br />Chloride <br />Chromium <br />COD <br />Conductivity (umhos/cm @ 25o C) <br />Copper <br />Fluoride <br />Hardness, Total <br />Hardness, Non-carbonate <br />Iron, Total <br />Iron, Dissolved <br />lead <br />Magnesium <br />-136,0 -209,0 -334.0 <br />158.0 150.0 126.0 141.0 227,0 180.0 164,0 251.0 360.0 343.0 <br />158.0 141.0 227.0 251.0 360.0 <br />0.3 0.050 0.8 1.1 0.5 0.000 0.2 0.5 0.5 0.4 <br /> <0.002 <0.002 <0.002 <0.002 <br /><0,001 0.001 0.002 0.001 0.001 <0.001 <0.001 <0.001 <br /> 0.2 <0,2 0.2 <0.2 <0.2 <br />0.254 0.290 0.450 0.529 0.055 0.090 0.255 0.362 0.290 0.601 <br /> <o,ool <o.aoz o.ooz <o,ool <0.002 <0.002 <br />104.0 92.0 90.0 96.0 150.0 140.0 130.0 157.0 400.0 357.0 <br />4.0 3.2 3.0 3.0 4.0 4,0 3.0 4,0 5.0 3.0 <br /><0.04 0.02 <0.04 <0.04 <0.02 <0.04 0.08 0.03 <br />11.5 8.2 22.6 <br />708.0 726.0 676.0 664.0 1089.0 1086.0 932.0 1060.0 2704.0 2610.0 <br />m,06 0.004 <0.02 0.03 <0.06 0.007 <0,02 0.03 0.06 0.03 <br />0.44 0.5 0.43 0.42 0.51 0.5 0.47 0.63 0.98 1.03 <br />342,0 330.0 343.0 605.0 550.0 501.0 1833.0 1832.0 <br /> 180.0 370.0 <br />14.0 13.0 22.7 1.90 2.29 3.00 0.34 5.71 21,6 27.2 <br /> 12,0 0.07 13.0 0.020 W.02 4.66 0.10 <br />x,04 0.005 <0.02 0.02 0.04 0.000 <0.02 <0.02 <0.04 0.02 <br />27,0 25.0 26.0 26,0 52.0 48.0 45.0 61.0 219.0 206.0 <br />294.0 <br />294.0 <br />0.9 <br /><0,002 <br /><0.2 <br />0.693 <br />353.0 <br />3.0 <br />2430.0 <br />1.11 <br />28.3 <br />22.7 <br />0.04 <br />187,0 <br />~. <br />~, <br />r, <br />N ' <br />~ I <br />a <br />.~ <br />v <br />v <br />m <br />i <br />r. <br />Table 7-10 continued on next page. <br />