SS4.12 Linking Science with Management of Freshwater Resources
Date: Thursday, June 13, 2002
Time: 2:45:00 PM
Location: Carson B
 
SmithVH, University of Kansas, Lawrence, USA, vsmith@ku.edu
deNoyelles, F, , University of Kansas, Lawrence, USA, jdsfile@aol.com
Pan, S, , University of Kansas, Lawrence, USA, sgpan@mail.ukans.edu
Randtke, S, , University of Kansas, Lawrence, USA, srandtke@ku.edu
Sieber-Denlinger, J, , Ohio State University, Columbus, USA, sieber-denlinger.1@osu.edu
 
MANAGING TASTE AND ODOR PROBLEMS IN EUTROPHIC MIDWESTERN DRINKING WATER RESERVOIRS
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Drinking water for the City of Wichita, KS is provided by Cheney Reservoir, a eutrophic impoundment constructed by the U.S. Bureau of Reclamation in 1962. This large, shallow reservoir has a mean depth of 5.3 meters and a surface area of 40 km2. Numerous reports of undesirable taste and odor in drinking water were received by the City of Wichita Water and Sewer Department in the early 1990’s, and periodic episodes of objectionable tastes and odor have occurred up through fall 2001. The monetary costs of controlling such events at the drinking water treatment plant can be very high, and the City of Wichita funded a research program to identify the likely causes of taste and odor problems. An intensive limnological sampling program was carried out from August 1999-October 2000, and simultaneous measurements of two taste and odor-causing compounds (geosmin and methylisoborneol) in the lakewater were also performed. These data were used to construct an empirical, phosphorus-based water quality management framework that is intended to help the City of Wichita minimize the likelihood of objectionable taste and odor events.