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Table 3 <br />Ground Water Quality Standards <br />(1) CDPHE -Water Quality Control Division Regulation 41 Table 1, 2 and 3 <br />Units <br />Metals <br />Aluminum <br />Al <br />5 <br />mg/l <br />mg/l <br />Agriculture Standards <br />Domestic Water Supply - <br />Metals <br />Antimony <br />Sb <br />0.006 <br />mg/1 <br />Hum ealth ds <br />Domestic Water Supply - <br />Metals <br />Arsenic <br />As <br />0.01 <br />mg/l <br />Human Health Standards <br />Domestic Water Supply - <br />Metals <br />Metals <br />Inorganic <br />Barium <br />Cadmium <br />Chloride <br />Ba <br />Cd <br />Cl <br />2 <br />0.004 <br />mgg/l <br />Human Health Standards <br />Human Health Standards <br />domestic Water Supply - <br />Metals <br />Metals <br />Chromium <br />Colbalt <br />CrIII <br />Co <br />0.1 <br />0.05 <br />mg/l <br />Human Health Standards <br />Metals <br />Copper <br />Cu <br />0.2 <br />mg/1 <br />Agriculture Standards <br />Domestic Water Supply - <br />Metals <br />Iron <br />Fe <br />0.3 <br />mg/1 <br />Human Health Standards <br />Domestic Water Supply - <br />Metals <br />Metals <br />Lead <br />Manganese <br />Pb <br />Mn <br />0.005 <br />0.05 <br />mg/l <br />mg/1 <br />Human Health Standards <br />Agriculture Standards <br />Domestic Water Supply - <br />Metals <br />Metals <br />Mercury <br />Molybdenu <br />m <br />Hg <br />Mo <br />0.002 <br />0.035 <br />mg/l <br />mg/l <br />Human Health Standards <br />Domestic Water Supply - <br />Human Health Standards <br />Domestic Water Supply - <br />Metals <br />Inorganic <br />Physical <br />Nickel <br />Nitrate <br />pH <br />Ni <br />NO3 <br />pH <br />0.1 <br />10 <br />mg/1 Human Health Standards <br />mg/1 <br />6.0-9.0 <br />Domestic Water Supply - <br />Metals <br />Selenium <br />Se <br />0.05 <br />mg/1 <br />Human Domestic dealth s <br />Water Supply - <br />Metals Silver <br />Inorganic Sulfate <br />Metals Zinc <br />Ag <br />SO4 <br />Zn <br />0.05 <br />250 <br />2 <br />mg/l <br />mg/1 <br />mg/l <br />Human Health Standards <br />Agriculture Standards <br />(1) CDPHE -Water Quality Control Division Regulation 41 Table 1, 2 and 3 <br />