From introduction: This report describes the results of 1980 sampling of ground-water pumpage for irrigation on the High Plains, one phase of the High Plains Regional Aquifer-System Analysis project. These data were collected to estimate the volume of irrigation water pumped during 1980 and to determine current trends in irrigation pumpage on the High Plains.

From purpose and scope: There are two principal purposes for this study. The first is to describe the hydrogeologic system of the study area. The second is to develop and demonstrate a capability for evaluating, quantitatively, the effects of different management alternatives on water levels and on streamflow in the study area.

From abstract: The High Plains Regional Aquifer System Analysis study has developed a regional water-resources (and related) data storage and retrieval system to organize and preserve areal interpretive data. The system is general and can easily be adapted for other studies. This report documents the High Plains data base as well as the general system that is independent of the High Plains area.

From Purpose and Scope of Study: "The Torrington 1ºx2º Quadrangle in southeastern Wyoming and a small area of westernmost Nebraska was evaluated to determine areas favorable for the occurrence of uranium deposits. Geologic environments (areally or stratigraphically restricted parts of a geologic unit) were placed in categories of favorable, unfavorable, or unevaluated."

Appendices containing data on uranium availability in the Torrington Quadrangle to accompany a report on U.S. uranium resources in Wyoming and Nebraska.

From Introduction: "The Hot Springs Quadrangle covers an area of approximately 18,500 km2 and is in southwestern South Dakota and northwestern Nebraska between latitudes 43º to 44ºN. and longitudes 102º to 104ºW. (Fig. 1). The quadrangle was evaluated at the surface and in the subsurface to a depth of 1500 m to identify geologic environments and delineate areas that exhibit characteristics favorable for uranium deposits."

Appendices containing data on uranium occurrences in the Hot Springs Quadrangle to accompany a report on uranium availability in South Dakota and Nebraska.

From introduction: This is the second report by U.S. Geological Survey personnel in Nebraska that presents interpretive information for the High Plains aquifer system in the State...This report and the first report are complementary; information from both can be used to compute certain aquifer properties, knowledge of which is essential in the development of a management plan for the aquifer system.

Abstract: This report lists the machine-readable data files developed for the Madison Limestone and Northern Great Plains Regional Aquifer System Analysis (RASA) projects that are stored on magnetic tape and available from the U.S. Geological Survey. Record format, file content, and size are given for: (1) Drill-stem-test data for Paleozoic and Mesozoic formations; (2) geologic data from the Madison Limestone project; (3) data sets used in the regional simulation model; (4) hydraulic-head data for the Lower and Upper Cretaceous aquifers; and (5) geologic data for Mesozoic formations of the Northern Great Plains.

Documentation outlining characteristics of field data samples taken in the Sioux City quadrangle.

Data gathered at stream sediment sites in the Sioux City quadrangle, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity) and elemental analyses.

Data gathered at well water sites in the Sioux City quadrangle, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity), physical measurements (e.g., temperature, well description, scintillometer readings), and elemental analyses.

"Results of a reconnaissance geochemical survey are reported for the Sioux City Quadrangle, Nebraska; Iowa; South Dakota. Statistical data and areal distributions for uranium and uranium-related variables are presented for 119 groundwater and 542 stream sediment samples. Also included is a brief discussion on location and geologic setting."

Documentation outlining characteristics of field data samples taken in the Fremont quadrangle.

Documentation outlining characteristics of field data samples taken in the Fremont quadrangle.

Data gathered at stream sediment sites in the Fremont quadrangle, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity) and elemental analyses.

Data gathered at well water sites in the Fremont quadrangle, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity), physical measurements (e.g., temperature, well description, scintillometer readings), and elemental analyses.

This report presents field and laboratory data for 567 groundwater samples and 560 stream sediment samples collected from the Fremont quadrangle in Nebraska and Iowa.

Tables presenting well water, stream sediment and field data for samples collected from the Broken Bow Quadrangle for a reconnaissance geochemical survey.

"Results of a reconnaissance geochemical survey of the Broken Bow Quadrangle, Nebraska are reported. Statistical data and aerial distributions for uranium-related variables are presented for 578 groundwater and 442 stream sediment samples. Also included is a brief discussion on location and geology." (from Abstract)

"Results of a reconnaissance geochemical survey of the O'neill Quadrangle are reported. Field and laboratory data are presented for 23 groundwater and 292 stream sediment samples. Statistical distributions and symbol plots for uranium and possible uranium-related variables are enclosed. A generalized geologic map and producing horizon map for the survey area are provided. Pertinent geologic factors that may be of significance in evaluating the potential for uranium mineralization are briefly discussed." (from Abstract)

Documentation outlining characteristics of field data samples taken in the O'Neill quadrangle.

Data gathered at stream sediment sites in the O'Neill quadrangle, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity) and elemental analyses.

Data gathered at well water sites in the O'Neill quadrangle, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity), physical measurements (e.g., temperature, well description, scintillometer readings), and elemental analyses.