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A-21 <br />. TABLE 11 <br /> CDOH Yampa Segment 13b (Fish Creek) Standards <br /> FIELD PH 6.5 - 9.0 <br /> AMMONIA, NITROGEN, MG/L O.lOA <br /> ARSENIC, TOTAL REC., UG/L 100.0 <br /> HORON, 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, IIG/L 231 (chronic) <br /> COPPER, UG/L 50.0 (acute) <br /> COPPER, UG/L 29.0 (chronic) <br /> IRON, TOTAL RSC., 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 2.615 (chronic) <br /> MERCURY, TOTAL, UG/L 0.2s <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 /> SIILFIDE, MG/L 0.020 <br /> SILVHR, UG/L 22.0 (acute) <br /> SILVSR, 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 t he 'dissolved' form. <br /> A = Standard is 0.02 mg/1 (ua-ionized). Detection limit is 0.10 mg/1. <br /> B = Standard is 0.01 ug/1. Detection limit is 0.2 ug/1. <br /> C = Standard is 0.002 mg/1 (un-ionized). Detection limit is 0.02 mg/1. <br />