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7A8LE 15 <br />Comparison of Surface Na[er Quality to CDOH Stream STandards <br />Yampa River, Segment 13 <br /> Analytical <br />A <br />Site parameter Standard Date Value <br /> <br />SN-S2N-FG1 Iron, total 1.0 mg/L 04/01/91 7.88 mg/l <br /> 09/17/91 4.05 mg/l <br />Sulfate 250 mg/l 04/01/91 290 mg/t <br /> 06/13/91 340 mg/l <br /> 09/17/91 560 mg/L <br />Mercury 0.05 ug/l 04/01/91 0.30 ug/l <br />Sulfide, 0.002 mg/l 09/17/91 0.004 mg/l <br />B <br />SN-S2N-FG2 <br />SN-S2N-SGS <br />0 <br />su-s2u-sc7 <br />un-ionized <br />Sulfate <br />Iron, total <br />Sulfate <br />Copper, <br />total recoverable <br />Lead <br />Mercury <br />Iron, total <br />Mercury <br />Sulfide, <br />un-ionized <br />250 mg/L 04/01/91 471 mg/L <br /> 06/13/91 574 mg/l <br /> -09/17/9.L_ 426 mg/l <br />1.0 mg/l 04/01/91 1.42 mg/L <br />250 mg/l 04/01/91 496 mg/l <br /> 06/13/91 434 mg/I <br /> 09/17/91 535 mg/l <br />22 ug/l 04/01/91 80 ug/l <br />25 ug/l 04/01/91 40 ug/l <br />D. OS ug/t 04/01/91 0.20 ug/l <br />1.0 mg/l 04/01/91 2.88 mg/l <br />0.05 ug/l 04/01/91 0.20 ug/L <br />0.002 mg/l 09/17/91 0.0045 mg/l <br />• <br />• <br /> <br />A-26 <br />