By Ryan C. Rowland, David V. Allen, and Doyle W. Stephens, U.S. Geological Survey James W. Yahnke, Bureau of Reclamation Nathan L. Darnall and Bruce Waddell, U.S. Fish and Wildlife Service
Prepared as part of the National Irrigation Drainage Water-Quality Program
U.S. Geological Survey,
Bureau of Reclamation,
U.S. Fish and Wildlife Service
Bureau of Indian Affairs
Hydrologic, sediment, and biological data were collected in the middle Green River basin in eastern Utah from 1991 to 2000 in an effort to monitor the effects of irrigation drainage on wetland areas and streams, aid in the development of remediation plans, and evaluate the effectiveness of selenium remediation efforts at Stewart Lake Waterfowl Management Area (WMA). Data consist primarily of selenium concentrations in surface water, ground water, bottom sediment, and biological samples. Supporting hydrologic data include field measurements of temperature, pH, specific conductance, water levels in wells, and discharge at surface-water sites. Selected water samples also were analyzed for major ions, trace elements, nutrients, and gross alpha and beta radiation. The concentration of selected selenium species is reported for several bottom-sediment samples from Stewart Lake WMA and the concentration of total selenium in suspended-sediment samples from the area are included. Well logs for six wells installed at Stewart Lake WMA are presented along with trace-element data for several biological samples collected at selected sites throughout the middle Green River basin. .
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Stewart Lake Remediation Chronology
Purpose and Scope
Physical and Chemical Data for Hydrologic Samples
Physical and Chemical Data for Sediment Samples
Physical and Chemical Data for Biological Samples
Sample collection and analysis