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• <br /> <br /> <br /> <br />ite TABLE 25 <br />Comparison of Surface Yater Quality to <br />Standards, Yampa River, Segment <br /> <br />Parameter Standard <br />CDOH Stream <br />13B <br /> <br />Date <br /> <br /> <br />nalytical <br />Value <br /> NPDES 004 Sulf a[e 250 mg/l 03/02/92 2,198 mg/l <br /> 05/18/92 2,445 mg/l <br /> 09/08/92 2,210 mg/L <br /> Sulfide (un-ionized) 0.002 mg/l 03/02/92 0.011 mg/l <br /> Mercury 0.01 ug/l 03/02/92 0.60 ug/l <br /> Lead 25 ug/L 09/08/92 95 ug/l <br /> Zinc 0.05 mg/L 09/08/92 0.44 mg/l <br /> N PDES 008 Sulfate 250 mg/l 03/02/92 963 mg/l <br />• 05/18/92 1,350 mg/l <br /> 09/08/92 1,794 mg/! <br /> Sulfide Cun-ionized) 0.002 mg/l 03/02/92 0.011 mg/l <br /> SW-S2-6 Manganese, total 1.0 mg/l 03/02/92 1.18 mg/t <br /> 05/18/92 1.92 mg/l <br /> Sulfate 250 mg/I 03/02/92 1,902 mg/l <br /> 05/16/92 2,447 mg/l <br /> 09/08/92 2,358 mg/l <br /> Silver 0.1 ug/l 09/08/92 0.7 ug/l <br /> Sulfide 0.002 mg/l 03/27/92 0.060 mg/L <br /> (Un-ionized) <br /> A <br /> SN-S2-11 Iron (total) 1.0 mg/l 06/12/92 1.59 mg/l <br />r ~ <br />L J <br />A-43 <br />