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<br />Table 2.--Water-quality standards for agricultural use for Colorado <br /> <br />(Colorado Department of Health, 1978. <br />milligram=l,OOO micrograms; 1 liter=l,OOO milliliters] <br /> <br />Chemical constituent <br />(milligrams per liter) <br /> <br />Water-quality <br />standard1 <br /> <br />Nitrate (as nitrogen)--------- <br /> <br />100 <br /> <br />Nitrite (as nitrogen)--------- <br /> <br />10 <br /> <br />Beryllium--------------------- <br /> <br />O. 1 <br /> <br />Boron------------------------- <br /> <br />0.75 <br /> <br />Cadmium----------------------- <br /> <br />0.01 <br /> <br />Chromium---------------------- <br /> <br />0.1 <br /> <br />Copper------------------------ <br /> <br />0.2 <br /> <br />Lead-------------------------- <br /> <br />0.1 <br /> <br />Manganese--------------------- <br /> <br />0.2 <br /> <br />Nickel------------------------ <br /> <br />0.2 <br /> <br />Selenium---------------------- <br /> <br />0.02 <br /> <br />Bacteria <br />(colonies per 100 milliliters) <br /> <br />Water-qua 1 i ty <br />standard <br /> <br />Fecal-coliform bacteria---------- <br /> <br />1 , 000 <br /> <br />lStandards are for total concentrations. <br /> <br />8 <br />