Publications
Publications
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A reconnaissance study of herbicides and their metabolites in surface water of the midwestern united states using immunoassay and gas chromatography/mass spectrometry A reconnaissance study of herbicides and their metabolites in surface water of the midwestern united states using immunoassay and gas chromatography/mass spectrometry
Preemergent herbicides and their metabolites, particularly atrazine, deethylatrazine, and metolachlor, persisted from 1989 to 1990 in the majority of rivers and streams in the midwestern United States. In spring, after the application of herbicides, the concentrations of atrazine, alachlor, and simazine were frequently 3-10 times greater than the U.S. Environmental Protection Agency...
Authors
E. Michael Thurman, D. A. Goolsby, M. T. Meyer, M. S. Mills, M.L. Pomes, Dana W. Kolpin
Use of weather types to disaggregate general circulation model predictions Use of weather types to disaggregate general circulation model predictions
General circulation models (GCMs) simulate climatic conditions with a grid cell resolution on the order of 100,000 km2. This resolution is inadequate to assess the effects of climatic change on water resources at a regional scale. A method has been developed that uses weather-type analysis as a tool to spatially disaggregate GCM predictions to make them useful for water resource studies...
Authors
L.E. Hay, G. J. McCabe, D.M. Wolock, M. A. Ayers
Geohydrologic systems in Kansas; physical framework of the confining unit in the Western Interior Plains aquifer system Geohydrologic systems in Kansas; physical framework of the confining unit in the Western Interior Plains aquifer system
The purpose of this Hydrologic Investigations Atlas is to provide a description of the geohydrologic systems in Upper Cambrian through Lower Cretaceous rocks in Kansas. This investigation was made as part of the Central Midwest Regional Aquifer-System Analysis (CMRASA). The CMRASA is one of several major investigations by the U.S. Geological Survey of regional aquifer systems in the...
Authors
C. V. Hansen, R. J. Wolf, J. M. Spinazola
Water Resources Data, Kansas, Water Year 1991 Water Resources Data, Kansas, Water Year 1991
No abstract available.
Authors
C.O. Geiger, D.L. Lacock, D.R. Schneider, M.D. Carlson, B.J. Pabst
Geographic and seasonal distribution of herbicides in streams of the midwestern United States Geographic and seasonal distribution of herbicides in streams of the midwestern United States
No abstract available.
Authors
D. A. Goolsby, E.M. Thurman, D.W. Kolpin
Reported water use in Kansas, 1987 Reported water use in Kansas, 1987
No abstract available.
Authors
J. F. Kenny
National Water-Quality Assessment Program - The Central Nebraska Basins National Water-Quality Assessment Program - The Central Nebraska Basins
No abstract available.
Authors
T.L. Huntzinger
U.S. Geological Survey Toxic Substances Hydrology Program; abstracts of the technical meeting, Monterey, California, March 11-15, 1991 U.S. Geological Survey Toxic Substances Hydrology Program; abstracts of the technical meeting, Monterey, California, March 11-15, 1991
No abstract available.
Authors
G. E. Mallard, D. A. Aronson
Geohydrologic data for the South Fork Ninnescah River valley and adjacent uplands in Pratt and Kingman counties, south-central Kansas Geohydrologic data for the South Fork Ninnescah River valley and adjacent uplands in Pratt and Kingman counties, south-central Kansas
No abstract available.
Authors
James B. Gillespie, G.D. Hargadine, N. C. Myers, D. A. Hargadine
Herbicides in streams. Midwestern United States Herbicides in streams. Midwestern United States
Results from a 2-year study of 149 streams geographically distributed across the corn-producing region of 10 midwestern States show that detectable concentrations of herbicides persist year round in most streams. Some herbicides exceeded proposed maximum contaminant levels for drinking water for periods of several weeks to several months following application. Atrazine was the most...
Authors
Donald A. Goolsby, E. Michael Thurman, Dana W. Kolpin
Herbicides in surface waters of the midwestern United States: The effect of spring flush Herbicides in surface waters of the midwestern United States: The effect of spring flush
Approximately three-fourths of all preemergent herbicides used in the United States are applied to row crops over a 12-state area, called the "corn belt" (I). The application of these compounds may cause widespread degradation of water quality (2). Because herbicides are water soluble, there is the potential for leaching into groundwater and surface water (3, 4), as well as aerial...
Authors
E.M. Thurman, D. A. Goolsby, M. T. Meyer, D.W. Kolpin