Selected hydrologic data, Tooele Valley, Tooele County, Utah

This report is intended to serve two purposes: (1) to make available to the public basic ground-water data useful in planning and studying development of water resources, and (2) to supplement an interpretive report that will be published later.

Records were collected during the period 1958-63 by the U.S. Geological Survey in cooperation with the Utah State Engineer as part of the investigation of ground-water conditions in Tooele Valley, Tooele County, Utah. Additional data, collected prior to this study, can be found in the reports listed in the bibliography, and in the Water-Supply Papers of the Geological Survey listed at the beginning of table 2. The interpretive material will be published in a companion report by Joseph S. Gates.

This report is most useful in predicting conditions likely to be found in areas that are being considered as well sites. The person considering the new well can spot the proposed site on plate 1 and examine the records of nearby wells as shown in the tables and figures. From table I he can note such things as depth, diameter, water level, yield, drawdown, use of water, temperature of water, and depth of perforations. By comparing the depth of perforations with the drillers' logs in table 3 he can note the type of material that yields water to the wells. Table 2 and figures 2, 3, and 4 show the historic fluctuations and trends of water levels in the vicinity. From table 4 he can note the chemical quality of the water from wells in the vicinity. Table 5 shows the amount of water discharged during 1962 from the pumped wells. If the reader decides from his examination that conditions are favorable he can place an application to drill a well with the State Engineer. If the State Engineer believes unappropriated water is available, the application may be approved after minimum statutory requirements have been satisfied.

The report is also useful when planning large-scale developments of water supply. This and other uses of the report will be helped by use of the interpretive report upon its release.