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TABLE 3 <br />ODOR Yampa Segment 13h (lower Dry Creek) Standards <br />FIELD PH <br />6.5 - 9.0 <br />AMMONIA, NITROGEN, MG/L <br />0.05A <br />ARSENIC, TOTAL REC., UG/L <br />390.0 (acute) <br />ARSENIC, TOTAL REC., UG/L <br />7.6 (chronic) <br />BORON, DISSOLVED, UG/L <br />750.0 <br />CADMIUM, UG/L <br />9.2 (acute) <br />CADMIUM, UG/L <br />1.2 (chronic) <br />CHROMIUM, UG/L <br />1773 (acute) <br />CHROMIUM, UG/L <br />231 (chronic) <br />COPPER, UG/L <br />50.0 (acute) <br />COPPER, UG/L <br />29.0 (chronic) <br />IRON, TOTAL REC., MG/L <br />1.0 <br />LEAD, UG/L <br />281.0 (acute) <br />LEAD, UG/L <br />11.0 (chronic) <br />MANGANESE, MG/L <br />9.738 (acute) <br />MANGANESE, MG/L <br />2.618 (chronic) <br />MERCURY, TOTAL, UG/L <br />0.01. <br />NICKEL, UG/L <br />1513.0 (acute) <br />NICKEL, UG/L <br />168.0 (chronic) <br />NITRITE, NITROGEN, MG/L <br />0.05 <br />NITRATE, NITROGEN, MG/L <br />100.0 <br />SELENIUM, UG/L <br />18.9 (acute) <br />SELENIUM, UG/L <br />9.6° (chronic) <br />SULFIDE, MG/L <br />0.02° <br />SILVER, UG/L <br />22.0 (acute) <br />SILVER, UG/L <br />3.5 (chronic) <br />ZINC, MG/L <br />0.565 (acute) <br />ZINC, MG/L <br />0.928 (chronic) <br />Acute = one -day max., Chronic = 30 -day average. These values were taken from Table IV, <br />CDOH Reg. 31, using a mean hardness of 900 mg/1. All acute/chronic values are the <br />'dissolved' form. <br />