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CDPHE Human Health Standards <br />Domestic Water Supply — Human Health Standards <br />Parameter <br />Standard' <br />Biological <br />Total Coliforms <br />(30 day <br />average) <br />2.2 3org1100 ml <br />Total Coliforms <br />max in 30 days)l days) <br />23or 1100 ml <br />Inorganic <br />Antimony Sb )" "' <br />0.006m 11 <br />Asbestos V <br />7.000 000fiberslLiter <br />Arsenic (As)d M, <br />0.01 rn !I <br />Barium Ba d.I" <br />2.0m /I <br />Beryllium _(Be)'-"' <br />0.004mg11 <br />Cadmium Cd d. "' <br />0.005m ;1 <br />Chromium (Cr)" " "' <br />0.1rn 11 <br />Cyanide Free (CN )"' <br />0.2m 11 <br />Fluoride F °' "' <br />4.0mg /l <br />Lead Pb1° <br />0.05m /l <br />Mercury (inorganic) (Hg)d, "' <br />0.002mgr1 <br />Molybdenum (MO) d <br />0.21 rn fl <br />Nickel (Ni)" <br />0.1m ;I <br />Nitrate (NO3)0. "' <br />1 O.On1 11 as N <br />Nitrate NO2 a "' <br />1,Om 1l as N <br />Total Nitrate +Nitrite (NO2 +NO3 -N)" f <br />10.Om 11 as N <br />Selenium (Se )°' "' <br />0.05m 11 <br />Silver A d <br />0.05m !I <br />Thallium (TI)d• "' <br />0.002mg11 <br />Uranium (U) d.2 <br />0.0108 to 0.03mmgll <br />Radiolog icalb' d <br />Gross Alpha Particle Activity <br />15 pCi/l <br />Beta and Photon Emitters <br />4 mrerm' <br />31 <br />