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1 <br />2 <br />3 <br />Parameter not analyzed <br />Probable analytical error <br />Detection limit of 5 ug /l <br />TABLE 9 <br />Comparison of 1991 Ground Water Quality With <br />Livestock Drinking Water Standards <br />Chemical Livestock 1991 Maximum Concentrations <br />Parameter Standard GW -N3 GW -N4R GW -N9 GW-N27 <br />Al 5 mg /l < .05 < .05 < .05 < .05 <br />As 200 ug /l < 10 < 10 < 10 < 10 <br />8 5000 ug /l 380 310 200 290 <br />Cd 50 ug /l < 5 < 5 < 5 < 5 <br />1 <br />Cr 1000 ug /l <br />1 <br />Co 1000 ug /l <br />Cu 500 ug /l < 10 < 10 < 10 < 10 <br />F 2 mg /l 0.5 0.7 0.8 1.0 <br />Fe No limit 3.4 1.41 0.38 0.15 <br />Pb 100 ug /l < 20 110 < 20 30 <br />Mn No limit 1.24 1.61 1.55 0.56 <br />Hg 10 ug /l < 0.1 < 0.1 < 0.1 < 0.1 <br />Mo No limit 1.0 2.0 < 1.0 1.0 <br />NO3 /N 100 mg /l .04 < .02 < .02 .04 <br />NO2 /N 10 mg /l .01 < .01 < .01 .01 <br />Se 50 ug /l < 2 < 5 < 2 < 2 <br />1 <br />V .1 ug /l <br />Zn 25 ug /l .02 .02 < .01 .01 <br />Ca 1000 mg /l 490 430 505 567 <br />Mg 500 mg /t 212 723 188 245 <br />SO4 3000 -5000 mg /l 1846 3713 1688 2140 <br />Alk 2000 mg /l 456 564 290 400 <br />TDS 5000 mj[l 3004 6742 3058 3386 <br />McKee and Wolf, 1963; Botz and Pedersen, 1976; and National Academy of Sciences, 1974 <br />19 <br />