Reconnaissance of polychlorinated biphenyls in the Arkansas River between Muskogee and Webbers Falls lock and dam, Oklahoma

Analysis of samples collected from the Arkansas River between Muskogee and Webbers Falls Lock and Dam, Oklahoma, in November 1978 showed that concentrations of polychlorinated biphenyls in the dissolved and suspended phases were less than the detection limit of 0.1 micrograms per liter. The maximum polychlorinated biphenyl concentration measured in samples of the bottom material was 16 micrograms per kilogram and occurred 5.9 miles below the U.S. Highway 62 bridge in Muskogee.