||An evaluation of environmental stress imposed by a coal ash effluent : Wisconsin power plant impact study /
Webster, Katherine E. ;
Webster, K. E. ;
Forbes, A. M. ;
Magnuson, J. J.
||Wisconsin Univ.-Madison. Center for Limnology. ;Madison Gas and Power Co., WI. ;Wisconsin Public Service Corp., Green Bay. ;Wisconsin Dept. of Natural Resources, Madison.;Environmental Research Lab.-Duluth, MN.
|| U.S. Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory,
Coal ash sites--Environmental aspects--Wisconsin. ;
Fly ash ;
Electric power plants ;
Water pollution ;
Animal behavior ;
Chemical analysis ;
Trace elements ;
Species diversity ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||ix, 55 p. : ill., maps ; 28 cm.
Effluent discharged from the coal ash settling basin of the Columbia generating Station (Wisconsin) modified water chemistry (increased trace metal concentrations, suspended solids and dissolved materials) and substrate quality (precipitation of chemical floc) in the receiving stream, the ash pit drain. To test the hypothesis that habitat avoidance could account for declines in macroinvertebrate density observed after discharge began, drift rates of two species were measured in laboratory streams containing combinations of reference and coal ash modified substrate and water. Contrary to the hypothesis, drift was uniformly lower in laboratory streams containing modified substrate and/or water compared to the reference condition for Gammarus pseudolimnaeus and Asellus racovitzai.
"Grant No. R803971." "June 1985." "EPA/600/3-85/045." "PB85-213429." "Project officer, Gary E. Glass." "This study was conducted in cooperation with Wisconsin Power and Light Company, Madison Gas and Electric Company, Wisconsin Public Service Corporation, Water Resources Center and Wisconsin Department of Natural Resources." Includes bibliographical references (p. 51-55). Photocopy.