Publications
Publications
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Geographic Information Systems Laboratory at Haskell Indian Nations University Geographic Information Systems Laboratory at Haskell Indian Nations University
No abstract available.
Authors
Thomas J. Trombley, Michael D. Kemppainen
Advanced technology used to monitor ground water in a restricted access area of Fort Riley, Kansas Advanced technology used to monitor ground water in a restricted access area of Fort Riley, Kansas
The purpose of this fact sheet is to describe how advanced communication technology is being used to overcome difficulties in collecting reliable ground-water data in areas with restricted access, such as at Fort Riley in northeast Kansas.
Authors
J.D. Breedlove, P.J. Finnegan, N. C. Myers
Occurrence of cotton pesticides in surface water of the Mississippi Embayment Occurrence of cotton pesticides in surface water of the Mississippi Embayment
No abstract available.
Authors
E. Michael Thurman, Lisa R. Zimmerman, Elisabeth A. Scribner, Richard H. Coupe
Changes in ground-water levels and storage in the Wichita well field area, south-central Kansas, 1940-98 Changes in ground-water levels and storage in the Wichita well field area, south-central Kansas, 1940-98
No abstract available.
Authors
W. R. Aucott, N. C. Myers
Water quality in the Ozark Plateaus, Arkansas, Kansas, Missouri, and Oklahoma, 1992-95 Water quality in the Ozark Plateaus, Arkansas, Kansas, Missouri, and Oklahoma, 1992-95
This report is intended to summarize major findings that emerged between 1992 and 1995 from the water-quality assessment of the Ozark Plateaus Study Unit and to relate these findings to water-quality issues of regional and national concern. The information is primarily intended for those who are involved in water-resource management. Yet, the information contained here may also interest...
Authors
James C. Petersen, James C. Adamski, Richard W. Bell, Jerri V. Davis, Suzanne R. Femmer, David A. Freiwald, Robert L. Joseph
Evaluation of microtiter-plate enzyme-linked immunosorbent assay for the analysis of triazine and chloroacetanilide herbicides in rainfall Evaluation of microtiter-plate enzyme-linked immunosorbent assay for the analysis of triazine and chloroacetanilide herbicides in rainfall
Triazine and chloroacetanilide concentrations in rainfall samples collected from a 23-state region of the United States were analyzed with microtiter-plate enzyme-linked immunosorbent assay (ELISA). Thirty-six percent of rainfall samples (2072 out of 5691) were confirmed using gas chro matography/mass spectrometry (GC/MS) to evaluate the operating performance of ELISA as a screening test
Authors
M.L. Pomes, E.M. Thurman, D.S. Aga, D. A. Goolsby
Source and transport of desethylatrazine and desisopropylatrazine to groundwater of the midwestern United States Source and transport of desethylatrazine and desisopropylatrazine to groundwater of the midwestern United States
Based on usage of the parent compounds and studies of their dissipation in corn fields, atrazine (6-chloro-N-ethyl-N'-(1-methylethyl-1,3,5-triazine-2,4-diamine)), cyanazine (2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropionitrile), and simazine (6-chloro-N,N'diethyl-1,3,5-triazine-2,4-diamine) are thought to be the important contributors of desethylatrazine (6-chloro...
Authors
E.M. Thurman, D.W. Kolpin, D. A. Goolsby, M. T. Meyer
Water-table conditions, aquifer properties, and streambed permeability along the Republican River from near Hardy, Nebraska, to Concordia, Kansas Water-table conditions, aquifer properties, and streambed permeability along the Republican River from near Hardy, Nebraska, to Concordia, Kansas
No abstract available.
Authors
C. V. Hansen
Similar rates of decrease of persistent, hydrophobic and particle-reactive contaminants in riverine systems Similar rates of decrease of persistent, hydrophobic and particle-reactive contaminants in riverine systems
Although it is well-known that concentrations of anthropogenic radionuclides and organochlorine compounds in aquatic systems have decreased since their widespread release has stopped in the United States, the magnitude and variability of rates of decrease are not well-known. Paleolimnological studies of reservoirs provide a tool for evaluating these long-term trends in riverine systems...
Authors
Peter C. Van Metre, Jennifer T. Wilson, Edward Callender, Christopher C. Fuller
Selected surface-water, ground-water, and tracer data from the Elkhorn and Platte Rivers and the alluvium near Ashland, eastern Nebraska, 1991-97 Selected surface-water, ground-water, and tracer data from the Elkhorn and Platte Rivers and the alluvium near Ashland, eastern Nebraska, 1991-97
No abstract available.
Authors
Ingrid M. Verstraeten, C.P. Stanton, R.L. Atkeson
The environmental occurrence of herbicides: The importance of degradates in ground water The environmental occurrence of herbicides: The importance of degradates in ground water
Numerous studies are being conducted to investigate the occurrence, fate, and effects on human health and the environment from the extensive worldwide use of herbicides to control weeds. Few studies, however, are considering the degradates of these herbicides in their investigations. Our study of herbicides in aquifers across Iowa found herbicide degradates to be prevalent in ground...
Authors
D.W. Kolpin, E.M. Thurman, S. M. Linhart
Physical and chemical data on sediments deposited in the Missouri and the Mississippi River flood plains during the July through August 1993 flood Physical and chemical data on sediments deposited in the Missouri and the Mississippi River flood plains during the July through August 1993 flood
Because sediments deposited by the 1993 floods on the Missouri and Mississippi rivers were thought to contain elevated concentrations of nutrients and trace elements, sediment deposits were sampled at 25 floodplain locations. The samples were analyzed for particle size, water content, volatile solids, nutrients, carbon, selected trace elements, pesticides, and semivolatile organic...
Authors
Gregg K. Schalk, Robert R. Holmes, Gary P. Johnson