Surface-water-quality assessment of the upper Illinois River Basin in Illinois, Indiana, and Wisconsin; fixed-station network and selected water-quality data for April 1987-September 1990
Open-File Report
91-175
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Abstract
This report describes and presents the sampling design, methods, quality assurance methods and results, and information on how to obtain data collected at eight fixed stations in the upper Illinois River Basin as part of the pilot phase of the National Water-Quality Assessment program. Data were collected monthly from April 1987-August l990; these data were supplemented with data collected during special events, including high and low flows. Each fixed station represents a cross section at which the transport of selected dissolved and suspended materials can be computed. Samples collected monthly and during special events were analyzed for concentrations of major ions, nutrients, trace elements, organic carbon, chlorophyll-a, suspended sediment, and other constituents. Field measurements of water temperature, pH, dissolved oxygen, specific conductance, and indicator bacteria also were made at each site. Samples of suspended sediment were analyzed for concentrations of major ions and trace elements. In addition, samples were analyzed seasonally for concentrations of antimony, bromide, molybdenum, and the radionuclides gross alpha and gross beta.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Surface-water-quality assessment of the upper Illinois River Basin in Illinois, Indiana, and Wisconsin; fixed-station network and selected water-quality data for April 1987-September 1990 |
| Series title | Open-File Report |
| Series number | 91-175 |
| DOI | 10.3133/ofr91175 |
| Edition | - |
| Year Published | 1994 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey ; U.S. Geological Survey, Earth Science Information Center, Open-File Reports Section [distributor], |
| Description | v, 213 p. :ill., maps ;28 cm. |
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