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TABLE 25 (Cant.) <br /> <br />Comparison of Surfa <br />ce Water Quality to <br />CDOH Stream • <br /> Standards, Yampa River, Segment 138 <br /> Analytical <br />Site Parameter Standard Date Value <br /> <br />SW-52-11A Sulfide (un-ionized) 0.002 mg/l 06/12/92 0.003 mg/l <br />(Cont.) <br /> Nercury 0.01 mg/l 05/18/92 0.30 ug/l <br />SW-S2-12 Sulfate 250 mg/I 05/18/92 1,187 mg/l <br /> 06/12/92 1,190 mg/t <br /> Mercury 0.05 ug/l 05/18/92 0.40 mg/l <br /> 06!12/92 0.20 mgt! <br />SY-52-13 Iron (total) 1.0 mg/l 05/18/92 1.25 mg/I <br /> Mercury 0.05 mg/l 05/18)92 0.70 mg/l <br />A = Site is upstream of mining • <br />A-44 <br /> <br />