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A-22 <br />• TABLE 11 <br />CDOH Yampa Segment 13b (Fish Creek) Standards <br />FIELD PH 6.5 - 9.0 <br />AMMONIA, NITROGEN, MG/L 0.05A <br />ARSENIC, TOTAL REC., UG/L 100.0 <br />BORON, DISSOLVED, UG/L 750.0 <br />CADMIUM, UG/L 5.7 (acute) <br />CADMIUM, UG/L 1.2 (chronic) <br />CHROMIUM, UG/L 1773 (acute) <br />CHROMIUM, UG/L 231 (chronic) <br />COPPER, UG/L 50.0 (acute) <br />COPPER, UG/L 29.0 (chronic) <br />IRON, TOTAL REC., MG/L 1.0 <br />LEAD, UG/L 281.0 (acute) <br />LEAD, UG/L 11.0 (chronic) <br />MANGANESE, MG/L 4.738 (acute) <br />MANGANESE, MG/L 2.618 (chronic) <br />MERCURY, TOTAL, UG/L O.O1B <br />NICKEL, UG/L 1513.0 (acute) <br />NICKEL, UG/L 168.0 (chronic) <br />NITRITE, NITROGEN, MG/L 0.05 <br />SELENIUM, UG/L 18.4 (acute) <br />SELENIUM, UG/L 4.6 (chronic) <br />SULFIDE, MG/L 0.020 <br />SILVER, UG/L 22.0 (acute) <br />SILVER, UG/L 0.81 (chronic) <br />ZINC, MG/L 0.464 (acute) <br />ZINC, MG/L 0.405 (chronic) <br />Acute = one day max., Chronic = 30 day average. These values were taken <br />from Table IV, CDOH Reg. 31, using a mean hardness of 400 mg/1. All <br />acute/chronic values are the 'dissolved' form. <br />. A = Standard is 0.02 mg/1 (un-ionized). Detection limit is 0.05 mg/1. <br />B = Detection limit for stream and spring sites is 0.2 ug/1. <br />C = Standard is 0.002 mg/1 (un-ionized). Detection limit is 0.02 mg/1. <br />