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Rajah 49 Mine, Thornton Portal <br /> > General Parameters Major Ions (mg/L) <br />Sam lelnformation <br />P Flow TSS <br /> <br />(mg/L) TDS <br /> <br />(mg/L) pH Alk <br /> <br />(s.u.) (mg/L) Cond <br /> <br />(PS/cm) <br />Na Ca Mg <br />K <br />CI F NO, <br />P HCO, <br />so, <br />..I III IOIIIU 1V1U111LU1111U rreu. VV-1 <br />T <br />E hornton Portal, EFRC, 9/21/09 <br />1-2 <br />5 <br />581 <br />8.58 <br />373 <br />938 <br />209 <br />7 <br />3 <br />6 <br />20 <br />0.4 <br />0.3 <br />0.062 <br />412 <br />96 <br />Thornton Portal, EFRC, 6/30/10 1-2 <4 537 8.9 379 889 207 7 3 7 23 0.3 0.2 0.102 431 86 <br />v%J VIO V rraLer Oienaaras <br />Ground Water, Domestic 6.5 to 8.5 250 4.0 10.0 250 <br />Ground Water, Agriculture 6.5 to 8.5 2 100 <br />Surface Water, Stream e, 6.5 to 9.0 <br />Surface Water, Domestic 5.0 to 9.0 250 2.0 10 250 <br />Surface Water, Agriculture 100 <br />EPA Water Standards (h) <br />Maximum 30 6.0 to 9.0 <br />Average 20 6.0 to 9.0 <br />Notes: <br />1. Water standards are provided for reference only. These standards do not apply to the site groundwater unless it is used for drinking water, irrigation, or other <br />regulated uses. <br />2. Concentrations or activity levels above a state or federal standards are shaded for reference purposes. Shading indicates that the measured level is elevated <br />compared to certain standards of water use. <br />3. Metal and radionuclide levels are reported as total recoverable. <br /> <br />Table 5 Water Quality Data <br />Rajah 49 Mine, Thornton Portal <br />Page 1 of 2