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Thornton Portal, EFRC. 9/21/09 <br />1 49 <br /><0 1 <br /><0 01 <br />0 2 <br /><0 01 <br /><0 05 <br /><0 05 <br /><0 01 <br />0.3 <br /><0 05 <br />0 154 <br />2 02 <br />0 3 <br />0 01 <br />1,370 <br />9 7 <br /><0 51 <br /><10 2 <br />Thornton Portal, EFRC, 6/30/10 <br />1.39 <br /><0 1 <br /><0 01 <br /><0 2 <br /><0 01 <br /><0 05 <br /><0.05 <br /><0 01 <br />0 2 <br /><0 05 <br />0.146 <br />1 81 <br />0 5 <br /><0 01 <br />1,230 <br />15 <br /><1 0 <br /><16 <br />Thornton Portal, EFRC, 5/24/11 <br />1 51 <br /><0 1 <br /><0 01 <br />0 2 <br /><0 01 <br /><0 05 <br /><0 05 <br /><0 01 <br />0 3 <br /><0 05 <br />0 142 <br />1 86 <br />0 4 <br /><0 01 <br />1,260 <br />12 <br /><1 4 <br /><13 <br />Thorton Portal EFRC, 5/30/12 <br />1 75 <br /><0 1 <br /><0 01 <br />0 1 <br /><0 01 <br /><0 05 <br /><0 05 <br />0 01 <br />0 3 <br /><0 05 <br />0 189 <br />2.06 <br />0.4 <br /><0 01 <br />1,390 <br />11 <br />< 68 <br /><12 <br />Ground Water, Domestic <br />0 01 <br />2 0 <br />1 0 004 <br />0 005 <br />0 1 <br />0 05 0 05 <br />0 035 <br />0 1 <br />0 05 0 03 <br />As <br />5 <br />20 <br />5(c) <br />j 5(c) <br />5 <br />Ground Water, Agriculture <br />0 1 <br />Se <br />0 1 <br />0 75 <br />0 01 <br />0 1 <br />0 1 <br />0 2 <br />i <br />0 2 <br />0 02 <br />0 1 <br />2 <br />Surface Water, Stream (e,f) <br />0 100 <br />I 0 100 <br />0 75 dis i <br />0 010 <br />0 100 • <br />0 100 <br />0 200 <br />1 <br />0 200 <br />(d) j <br />2 <br />i 5(c) <br />5(c) ' <br />5 <br />Surface Water, Domestic <br />0 1(q) <br />1 0 <br />+ 0 004 <br />0 005 <br />0 05 <br />0 05 <br />0 05 <br />0 1 0 05 <br />0 03 ' <br />5 <br />20 <br />5(c) <br />5(c) <br />5 <br />Surface Water, Agriculture <br />0 1 <br />0 1 <br />0 75 1 <br />0 01 <br />0 1 <br />0 1 <br />0 2 <br />0 2 0 02 <br />2 <br />Sample Information <br />Dissolved Metals (mg/L) <br />Dissolved Radionuclides (pCi/L) <br />As <br />Ba <br />I Be <br />B <br />Cd <br />Cr Pb Mn <br />Mo <br />J <br />! NI <br />Se <br />U <br />V <br />Zn <br />U Ra -228 Ra -228 Ra -228 <br />Rajah 49 Mine, Thornton Portal <br />Thornton Portal <br />Colorado Water Standards <br />EPA Water Standards (h) <br />Maximum <br />Average <br />4 <br />10 <br />2 <br />0.5 <br />10 dis, <br />30 tot <br />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, imgation, 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 retain 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, Thomton Portal <br />Page 10 of 16 <br />