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Ohio EPA Certificate #4043 Trihalomethanes, EPA Method 524.2 Volatile organic compounds, EPA Method 524.2 Vinyl chloride, EPA Method 524.2 Haloacetic acids, EPA Method 552.2 Ohio EPA Certificate #824 Total coliform and E. coli by MMO-MUG, EPA Method 9223 Ohio EPA Certificate #CA-1106895-07 Class A water supply operator City of Columbus, Ohio FBE certification |