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Table 2 <br />Secondary Drinking Water <br />Costilla County Landfill Pit <br />Costilla County. Colorado <br />Contaminants MWl MW4 Regulatory Limit <br />Chlorophenol ND ND 0.0002 mglL <br />Chloride 2.5 3.0 250 mg/L <br />Color < I < 1 IS color units <br />Copper ND ND 1 mg/L <br />Corrosivity Corrosive Noncorrosive Noncorrosive <br />Foaming Agents ND ND 0.5 mglL <br />Iron ND ND 0.3 mg/L <br />Manganese ND 0.015 0.05 mg/L <br />Odor < 1 < 1 3 Threshold odor numbers <br />pH 7.93 7.80 6.5-8.5 <br />Phenol ND ND 0.300 mg/L <br />Sulfate 13 IS 250 mglL <br />Zinc ND ND 5 mglL <br />ND -Not Detec[ed <br />I(p2961S.L7R\ASd\I\10/7/96 <br />