Geochemical and hydrologic data were collected in and around six abandoned uranlferous lignite mines in western North Dakota during December 1983 through June 1988. These data Include well construction and field water-quality data for 224 wells, test holes, and springs. Also Included are water levels in selected wells, lithologlc logs of selected wells and test holes, physical properties and major-Ion and nutrient concentrations of water samples from selected wells and springs, trace-element analyses of water samples from selected wells and springs, radlochemlcal analyses of water samples from selected wells and springs, and grain-size analyses of rock samples from selected wells and test holes. Analytical methods and detection levels for determination of chemical constituents are Included as well as township-range location numbers and corresponding latitude-longitude numbers.
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