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USGS1970

Water-quality data for the Flaming Gorge Reservoir area, Utah and Wyoming

In October 1966, the U.S. Geological Survey began a reconnaissance study of water quality in Flaming Gorge Reservoir. The purpose of this study was to determine the load of dissolved ions in the reservoir, the changes in chemical quality of the water as a result of initial leaching and subsequent storage, and the effect of the reservoir on the effluent waters. The construction of Flaming Gorge Dam began in 1957, and the reservoir began storing water in November 1962. This report tabulates the chemical-quality data which were collected during the study (1966-68) and summarizes some of the data available prior to closure of the reservoir. An interpretive report will be prepared at a later date. Three sets of data were collected from the reservoir during the study. The sampling locations are shown in figure 1 and the data are listed in tables 1 and 3. At each site in the reservoir, samples were collected at various depths from the surface to the bottom, using a self-closing messenger-actuated sampler. For sites 1-6, the sampling verticals were at the deepest part of the reservoir cross section. For sites 7-12, in the upper reaches of the reservoir, sampling verticals were at three points in the cross section. Samples for complete chemical analysis were collected from sites 1-6 at both the beginning (October 1966) and the end (September 1968) of the data-collection phase of the study. The variation in dissolved ions with depth for these two sets of data are summarized in figure 2. Samples for partial analysis were collected from sites 1 and 6-13 in September 1967, and the partial analyses are included in table 1.

Utah↗

USGS1972

Water-quality data for the Flaming Gorge Reservoir area, Utah and Wyoming, 1969-72

Utah↗

USGS1976

Chemical and physical data for the Flaming Gorge Reservation area, Utah and Wyoming, 1973-75

This report presents the basic data that were collected by the U.S. Geological Survey during a study of the chemical quality of water in Flaming Gorge Reservoir. An interpretive report will follow. The basic data were collected from the reservoir during the period August 1973 to October 1975. The reservoir was sampled for chemical and physical data at 25 sites. The sites are shown in figure 1 and the data are listed in tables 1-3. In addition to the data collected from the reservoir, streamflow and water-quality data are collected on a continuing basis at sites on the major streams flowing into and out of the reservoir. The inflow sites are Green River near Green River, Wyo., Blacks Fork near Little America, Wyo., and Henrys Fork near Manila, Utah (fig. 1). The out- flow site is Green River near Greendale, Utah. These data are published in an annual series, and for the period of this project the data are in U.S. Geological Survey (197l-75a, b, c, d).

Utah, Wyoming↗

USGS1976

Selected hydrologic data, Uinta Basin area, Utah and Colorado

The Uinta Basin area in northeastern Utah and northwestern Colorado covers an area of slightly more than 10,000 mi 2 (25,900 km 2 ). More than 95 percent of the basin is in Utah, thus most of the data in this report apply to Utah. Most of the water wells are concentrated in populated areas along the lower parts of the basin; records of only a representative number of these water sources are included in this report. This report presents consolidated listings of data selected for use in hydrologic studies in the Uinta Basin area through June 1974. The data are principally taken from three studies made during 1971-74 by the U.S. Geological Survey in cooperation with the Utah Department of Natural Resources, Division of Water Rights. Also incorporated in this report are data collected since 1935 by the Geological Survey and other organizations. This report is intended to make data conveniently available and to supplement interpretive reports that will be published separately. For some data sites, the volume of data is too great for complete inclusion here. For these sites, data summaries are provided, and for greater detail the reader is referred to the sources listed under Selected references.

Colorado, Utah↗

USGS1978

Selected ground-water data, Bonneville Salt Flats and Pilot Valley, western Utah

This report contains ground-water data collected at wells and springs on the Bonneville Salt Flats and in Pilot Valley, western Utah. Most of the data were collected during a study of the hydrology and surface morphology of these two salt-crust areas during the period July 1975 - June 1977. The study was carried out in cooperation with the U.S. Bureau of Land Management. This report is intended to make the basic data conveniently available and to supplement an interpretive report that will be published separately. Some earlier data that were collected by the Geological Survey and other organizations are also included.

Utah↗

USGS1971

Geohydrologic sections, Cache Valley, Utah and Idaho

This report was prepared as a part of a study of the ground-water resources of Cache Valley, Utah and Idaho. The study by the U.S. Geo- logical Survey was made during 1967-70 in cooperation with the Utah Department of Natural Resources, Division of Water Rights. The U.S. Bureau of Reclamation and the U.S. Soil Conservation Service cooperated by providing services; and counties, cities, irrigation districts, and some local organizations and businesses in both Utah and Idaho cooperated financially through the Utah Department of Natural Resources. In addition to this report, results of the study are presented in a basic-data release (McGreevy and Bjorklund, 1970) and in an interpretive report in preparation. Geologic and hydrologic data are combined and presented on a series of cross sections. Geologic contacts and faults or fault zones are based on indicated well logs, on the geologic map in the interpretive report (in preparation) , and on gravity data by Peterson and Oriel (1970).

Idaho, Utah↗

USGS1970

Ground-water conditions in southern Utah Valley and Goshen Valley, Utah

The investigation of ground-water conditions in southern Utah Valley and Goshen Valley, Utah, was made by the U. S. Geological Survey as part of a cooperative program with the Utah Department of Natural Resources, Division of Water Rights, to investigate the water resources of the State. The purposes of the investigation were to (1) determine the occurrence, recharge, discharge, movement, storage, chemical quality, and availability of ground water; (2) appraise the effects of increased withdrawal of water from wells; and (3) evaluate the effect of the Central Utah Project on the ground-water reservoir and the water supply of Utah Lake. This report presents a description of the aquifer system in the two valleys, a detailed description of the ground-water resources, and conclusions about potential development and its effect on the hydrologic conditions in the valleys. Two supplementary reports are products of the investigation. A basic-data release (Cordova, 1969) contains most of the basic data collected for the investigation, including well characteristics, drillers' logs, water levels, pumpage from wells, chemical analyses of ground and surface waters, and discharge of selected springs, drains, and streams. An interpretive report (Cordova and Mower, 1967) contains the results of a large-scale aquifer test in southern Utah Valley.

Utah↗

USGS1995

Distribution of carbonate-rock aquifers and the potential for their development, southern Nevada and adjacent parts of California, Arizona, and Utah

In 1985, the State of Nevada entered into a cooperative effort with the U.S. Department of the Interior to study and test the State's carbonate- rock aquifers. The studies were focused on southern Nevada and were intended to address the following concerns: Where is water potentially available in the aquifers?; How much water potentially can bewithdrawn from aquifers?; and What effects might result from development of the aquifers? The studies included basic-data collection, geologic mapping, geophysical and geochemical analyses, well drilling, and aquifer testing. The studies showed that the carbonate rocks are continuous and extensive enough to form regional aquifer systems only beneath thecentral third of the region. About 130,000 acre-feet per year of ground water flows through all the aquifers in this corridor (carbonate and noncarbonate), and about 77,000 acre-feet per year discharges directly from the carbonate-rock aquifers at regional springs in southern Nevada or at discharge areas in Death Valley, California. A larger volume of water -as much as 6 million acre-feet in the upper 100 feet alone-is stored in the rocks. Once depleted, however, that resource would be replenished by natural processes only very slowly. Ultimately, long-term development of the carbonate-rock aquifers would result in depletion of stored water, or in the capture of water that otherwise would discharge from the aquifers of southern Nevada and vicinity, or both. In manyplaces, development might extract water from both carbonate-rock and basin-fill aquifers. Possible effects of developing the carbonate-rock aquifers include declining water levels, decreasing springflow rates, drying up of some streams, playas, and meadows, and changing water quality. Specific impacts would depend upon the magnitude and length of development and site-specific conditions around the areas where the water is withdrawn. Confidence in predictions of the potential effects ofdevelopment of the carbonate-rock aquifers will remain limited until observations become available that document changes as the aquifers respond locally to long-term pumping stresses. However, if staged development were undertaken together with adequate monitoring, effects of continued or increased development could be estimated with progressively higher degrees of confidence.

Water-Resources Investigations Report↗