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Table 5 Rajah 49 Mine, Thornton Portal (Rajah Spring) <br /> Dissolved Metals(mg/L) Dissolved Radionuclides(pCi/L) <br /> Sample Information As Ba Be B Cd Cr Pb Mn Mo Ni Se U V Zn U Ra-226 Ra-228 Ra-226 <br /> Ra-228 <br /> Thornton Portal (Rajah Spring) <br /> Thornton Portal, EFRC, 9/21/09 1.49 <0.1 <0.01 0.2 <0.01 <0.05 <0.05 <0.01 0.3 <0.05 0.154 2.02 0.3 0.01 1,370 9.7 <0.51 <10.2 <br /> Thornton Portal, EFRC, 6/30/10 1.39 <0.1 <0.01 <0.2 <0.01 <0.05 <0.05 <0.01 0.2 <0.05 0.146 1.81 0.5 <0.01 1,230 15 <1.0 <16 <br /> Thornton Portal, EFRC, 5/24/11 1.51 <0.1 <0.01 0.2 <0.01 <0.05 <0.05 <0.01 0.3 <0.05 0.142 1.86 0.4 <0.01 1,260 12 <1.4 <13 <br /> Thorton Portal, EFRC, 5/30/12 1.75 <0.1 <0.01 0.1 <0.01 <0.05 <0.05 0.01 0.3 <0.05 0.189 2.06 0.4 <0.01 1,390 11 <.68 <12 <br /> Thorton Portal, EFRC, 6/17/2013 1.39 <0.1 <0.01 0.1 <0.01 <0.05 <0.05 0.09 0.3 <0.05 0.154 2.43 0.4 <0.01 1,650 1 16 <1.9 <17.9 <br /> Thorton Portal, EFRC, 6/17/2014 1.63 <0.1 <0.01 0.1 <0.01 <0.05 <0.05 0.01 0.3 <0.05 0.19 2.22 0.4 0.01 1,500 9.7 <1.0 <10.7 <br /> Thornton Portal, EFRI, 8/5/15 2.28 <0.1 <0.01 0.2 <0.01 <0.05 <0.05 <0.01 0.3 <0.05 0.266 2.04 0.4 <0.01 1,380 7.4 1.8 9.2 <br /> Thornton Portal, EFRI, 6/1/16 1.84 <0.1 <0.01 0.1 <0.01 <0.05 <0.05 <0.01 0.3 <0.05 0.35 2.0 0.4 <0.01 1,350 11 <1.6 <12.6 <br /> Thornton Portal, EFRI, 6/7/17 2.11 <0.01 0.1 <0.01 <0.05 <0.05 <0.01 0.2 <0.05 0.226 2.3 0.4 <0.01 1,580 9.9 1.9 11.8 <br /> Colorado Water Standards <br /> Ground Water, Domestic 0.01 2.0 0.004 0.005 0.1 0.05 0.05 0.035 0.1 0.05 0.03 5 20 5 c 5 c 5 <br /> Ground Water, Agriculture 0.1 0.1 0.75 0.01 0.1 0.1 0.2 0.2 0.02 0.1 2 <br /> Surface Water, Stream e,f 0.100 0.100 0.75 dis 0.010 1 0.100 0.100 0.200 0.200 d 2 5 c 5 c 5 <br /> Surface Water, Domestic 0.1 1.0 0.004 0.005 0.05 0.05 0.05 0.1 0.05 0.03 5 20 5 c 5 c 5 <br /> Surface Water, Agriculture 0.1 0.1 0.75 0.01 0.1 0.1 0.2 0.2 0.02 2 <br /> EPA Water Standards(h) <br /> Maximum 4 1.0 10 dis, <br /> 30 tot <br /> Average 2 0.5 3 dis, <br /> 10 tot <br /> Notes: <br /> 1. Water standards are provided for reference only.These standards do not apply to the spring water unless it is used for drinking water, irrigation, or other regulated <br /> uses. <br /> 2. Concentrations or activity levels above a state or federal standard are shaded for reference purposes. Shading indicates that the measured level is elevated <br /> compared to cetain standards of water use. <br /> 3. Metal and radionuclide levels are reported as total recoverable. <br /> Table 5 Water Quality Data <br /> Rajah 49 Mine, Thornton Portal <br /> Page 2 of 2 <br />