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u <br />TABLE 14 <br />Colorado Department of Health <br />Receiving Stream Standards, Yampa River <br />Segment 13 <br /> pH (S.U.) 6.5-9.0 <br /> Ammonia Nitrogen-N (un-ionized) mg/l 0.02 <br /> Arsenic, Total Recoverable ug/l 50.0 <br /> Boron, Dissolved ug/l 750.0 <br /> Cadmium, Total Recoverable ug/l 1.0 <br /> Chloride mg/l 250.0 <br /> Chromium, Total Recoverable ug/l 50.0 <br /> Copper, Total Recoverable ug/l 22.0 <br /> Iron, Taal mg/l 1.0 <br /> Iron, Dissolved mg/l 0.3 <br /> <br /> Lead, Total Recoverable ug/l 25.0 <br />• Manganese, Total mg/t - 1.0- - <br /> Manganese, Dissolved mg/l 0.174 <br /> <br /> Mercury, Total Recoverable ug/l 0.05 <br /> Nickel, Total Recoverable ug/l~ 100.0 <br /> Nitrite Nitrogen•N mg/l 0.05 <br /> Nitrate Nitrogen•N mg/I 10.0 <br /> <br /> Selenium, Total Recoverable ug/l 10.0 <br /> Sulfate mg/l ~ 250.0 <br /> Sulfide (un-ionized) mg/l 0.002 <br /> Silver, Total Recoverable u9/l 0.1 <br /> Zinc, Total Recoverable mg/l~ 0.05 <br />• <br />•CDOH standard is the "total" type; PCC has these parameters analyzed as "total <br />recoverable". <br />A-25 <br />