A review of the data collected in the Cedar River basin, Iowa and Minnesota, indicates that atrazine is consistently detected in the main-stem river at concentrations greater than 0.10 microgram per liter even during periods of extended base flow. The primary source of atrazine in the river during these periods of base flow is not known. This study is designed to determine how atrazine and other a

Authors

P. J. Squillace, M. J. Liszewski, E. M. Thurman

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Kansas Water Science Center, Central Midwest Water Science Center

January 1, 1993

Hydrogeologic, water-quality, and land-use data for the reconnaissance of herbicides and nitrate in near-surface aquifers of the Midcontinental United States, 1991

Water samples were collected during the spring and summer of 1991 from 303 wells penetrating near-surface unconsolidated and bedrock aquifers of the midcontinental United States. Samples were analyzed for 11 herbicides, 2 dealkylated atrazine metabolites, and 4 nutrients. Specific conductance, pH, and dissolved-oxygen concentrations of the ground water were measured onsite. Ancillary data on well

Authors

D.W. Kolpin, M. R. Burkart, E. M. Thurman

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Kansas Water Science Center, Central Midwest Water Science Center

January 1, 1993

Description of water-resource-related data compiled for Reno County, south-central Kansas

Water-resource-related data for sites in Reno County, Kansas were compiled in cooperation with the Reno County Health Department as part of the Kansas Department of Health and Environment's Local Environmental Protection Program (LEPP). These data were entered into a relational data-base management system (RDBMS) to facilitate the spatial analysis required to meet the LEPP goals of developing plan

Authors

C. V. Hansen

Kansas Water Science Center

January 1, 1993

Description of water-resource-related data compiled for Harvey County, south-central Kansas

Site, construction, geologic, water-level, water- quality, water-withdrawal, and well-survey data for sites in Harvey County were compiled in cooper- ation with the Harvey County Health Department as part of the Kansas Department of Health and Environment's Local Environmental Protection Program (LEPP). These data were entered into a relational data-base management system (RDBMS) to facilitate the

Authors

C. V. Hansen

Kansas Water Science Center

January 1, 1993

The occurrence and transport of agricultural pesticides in the Tuttle Creek lake-stream system, Kansas and Nebraska

No abstract available.

Authors

H.E. Bevans, C. H. Fromm, S.A. Watkins

Kansas Water Science Center

January 1, 1993

U. S. Geological Survey Toxic Substances Hydrology Program--Abstracts of the Technical Meeting, Colorado Springs, Colorado, September 20-24, 1993

No abstract available.

Authors

David W. Morganwalp, David A. Aronson

Water Resources Mission Area, Kansas Water Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center

January 1, 1993

Reconnaissance data for selected herbicides, two atrazine metabolities, and nitrate in surface water of the Midwestern United States, 1989-90

Water-quality data were collected from 147 rivers and streams during 1989-90 to assess selected preemergent herbicides, two atrazine metabolites, and nitrate in 10 Midwestern States. This report includes a description of the sampling design, data collection techniques, laboratory and analytical methods, and a compilation of constituent concentrations and quality-assurance data. All water samples w

Authors

E.A. Scribner, E. M. Thurman, D. A. Goolsby, M. T. Meyer, M. S. Mills, M.L. Pomes

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Kansas Water Science Center

January 1, 1993

Selected papers on agricultural chemicals in water resources of the Midcontinental United States

No abstract available.

Authors

D. A. Goolsby, L.L. Boyer, G. E. Mallard

Water Resources Mission Area, Kansas Water Science Center, Central Midwest Water Science Center

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Ground- and surface-water interaction between the Kansas River and associated alluvial aquifer, northeastern Kansas

Hydrogeology and ground-water-quality conditions at the Sumner County Landfill, south-central Kansas, 1989-90

Hydrogeology and ground-water-quality conditions at the Harvey County Landfill, south-central Kansas, 1990

Proceedings of the Federal Interagency Workshop on Hydrologic Modeling Demands for the 90's

Agricultural chemical interchange between ground water and surface water, Cedar River basin, Iowa and Minnesota: A study description

Hydrogeologic, water-quality, and land-use data for the reconnaissance of herbicides and nitrate in near-surface aquifers of the Midcontinental United States, 1991

Description of water-resource-related data compiled for Reno County, south-central Kansas

Description of water-resource-related data compiled for Harvey County, south-central Kansas

The occurrence and transport of agricultural pesticides in the Tuttle Creek lake-stream system, Kansas and Nebraska

U. S. Geological Survey Toxic Substances Hydrology Program--Abstracts of the Technical Meeting, Colorado Springs, Colorado, September 20-24, 1993

Reconnaissance data for selected herbicides, two atrazine metabolities, and nitrate in surface water of the Midwestern United States, 1989-90

Selected papers on agricultural chemicals in water resources of the Midcontinental United States

U.S. Geological Survey

U.S. Department of the Interior