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<br />Table VII <br /> <br />DRINKING WATER STANDARDS. <br />1962 U.S. PUBLIC HEALTH SERVICE <br /> <br />CHARACTER I STIC <br /> <br />RECOMMENDED <br />LIMIT <br /> <br />REJECTION <br />LIMIT <br /> <br />PHYSICAL <br /> <br />Color <br />Taste <br />Threshold odor number <br />Turbidity <br /> <br />15 units <br />Unobjectionable <br />3 <br />5 units <br /> <br />CHEMICAL (mg/l) <br /> <br />Alkyl benzene sulfonate <br />Arsenic <br />Barium <br />Cadmium <br />Chloride <br />Chromium (hexavalent) <br />Copper <br />Carbon chloroform extract' <br />Cyanide <br />Fluoride2 <br />Iron <br />Lead <br />Manganese <br />Nitrate <br />Phenols <br />Selenium <br />Silver <br />Sulfate <br />Total dissolved solids <br />Zinc <br /> <br />0.5 <br />0.01 <br /> <br />0.05 <br />1.0 <br />0.01 <br /> <br />250 <br /> <br />0.05 <br /> <br />1 <br />0.2 <br />0.01 <br />0.7-1.2 <br />0.3 <br /> <br />0.2 <br />1. 4-2. 4 <br /> <br />0.05 <br /> <br />0.05 <br />45 <br />0.001 <br /> <br />0.01 <br />0.05 <br /> <br />250. <br />500 <br />5 <br /> <br />, <br /> <br />Organic contaminants. <br /> <br />The concentration of fluoride should be between 0.6 and 1.7 mg/I, <br />depending on the listed annual average maximum daily air tempera- <br />tures. <br /> <br />2 <br /> <br />0194 <br /> <br />21 <br />