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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />Table 5 Rajah 49 Mine, Thornton Portal (Rajah Spring) <br />Sample Information <br />General Parameters <br />Major Ions (mg/L) <br />Flow TSS <br />(mg/L) <br />MSpH <br />1 (mg/L) <br />(s.u.) <br />Alk <br />(mg/L) <br />Cond <br />(pS/cm) <br />Na <br />Ca <br />Mg <br />K <br />Cl <br />F <br />NO3 <br />P <br />HCO3 SO4 <br />Thornton Portal (Rajah Spring) <br />Thornton 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 <br />1-2 <br /><4 <br />537 <br />8.9 <br />379 <br />889 <br />207 <br />7 <br />3 <br />7 <br />23 <br />0.3 <br />0.2 <br />0.102 <br />431 <br />86 <br />Thornton Portal, EFRC, 5/24/11 <br /><1 <br /><4 <br />571 <br />9.16 <br />360 <br />985 <br />216 <br />7 <br />3 <br />6 <br />24 <br />0.4 <br />0.2 <br />0.091 <br />403 <br />93 <br />Thorton Portal, EFRC, 5/30/12 <br /><1 <br />6 <br />550 <br />8.8 <br />361 <br />939 <br />201 <br />9 <br />3 <br />6 <br />23 <br />0.3 <br />0.2 <br />0.058 <br />404 <br />87 <br />Thorton Portal, EFRC, 6/17/2013 <br /><1 <br />412 <br />691 <br />7.95 <br />379 <br />844 <br />92 <br />9 <br />3 <br />7 <br />25 <br />0.3 <br />0.32 <br />0.192 <br />441 <br />92 <br />Thorton Portal, EFRC, 6/17/2014 <br /><1 <br /><10 <br />579 <br />8.69 <br />366 <br />973 <br />209 <br />7 <br />3 <br />6 <br />24 <br />0.3 <br />0.5 <br />0.196 <br />414 <br />94 <br />Thornton Portal, EFRI, 8/5/15 <br /><1 <br /><10 <br />578 <br />8.35 <br />352 <br />1030 <br />210 <br />8 <br />3 <br />6 <br />24 <br />0.4 <br />0.5 <br />0.053 <br />393 <br />92 <br />Colorado Water Standards <br />Ground Water, Domestic <br />6.5 to 8.5'' <br />250 1 4.0 10.0 <br />250 <br />Ground Water, Agriculture <br />6.5 to 8.5 <br />2 100 <br />Surface Water, Stream (e,f) <br />6.5 to 9.0 <br />Surface Water, Domestic <br />5.0 to 9.0 <br />250 <br />2.0 <br />10 <br />250 <br />Surface Water, Agriculture <br />I <br />100 <br />EPA Water Standards (h) <br />Maximum <br />30 <br />6.0 to 9.0 <br />Average <br />20 <br />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 />Table 5 Water Quality Data <br />Rajah 49 Mine, Thornton Portal <br />Page 9 of 16 <br />