Seasonal changes in ground-water quality and ground-water levels and directions of ground-water movement in southern Elmore County, southwestern Idaho, including Mountain Home Air Force Base, 1990-91
Water-Resources Investigations Report
92-4027
By: H.W. Young, D. J. Parliman, and Michael L. Jones
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Abstract
The study area is located in southern Elmore County, southwestern Idaho, and includes the Mountain Home Air Force Base located approximately 10 mi southwest of the city of Mountain Home. Chemical analyzes have been made periodically since the late 1940's on water samples from supply wells on the Air Force Base. These analyses indicate increases in specific conductance and in concentrations of nitrogen compounds, chloride, and sulfate. The purposes of this report, which was prepared in cooperation with the Department of the Air Force, are to describe the seasonal changes in water quality and water levels and to depict the directions of ground-water movement in the regional aquifer system and perched-water zones. Although data presented in this report are from both the regional ground-water system and perched-water zones, the focus is on the regional system. A previous study by the U.S. Geological Survey (Parliman and Young, 1990) describes the areal changes in water quality and water levels during the fall of 1989. During March, July, and October 1990, 141 wells were inventoried and depth to water was measured. Continuous water-level recorders were installed on 5 of the wells and monthly measurements of depth to water were made in 17 of the wells during March 1990 through February 1991. Water samples from 33 wells and 1 spring were collected during the spring and fall of 1990 for chemical analyses. Samples also were collected monthly from 11 of those wells during April to September 1990 (table 1). Selected well-construction and water-use data and measurements of depth to water for 141 wells are given in table 2 (separated sheets in envelope). Directions of ground-water movement and selected hydrographs showing seasonal fluctuations of water levels in the regional ground-water system and perched-water zones are shown on sheet 2. Changes in water levels in the regional ground-water system during March to October 1990 are shown on sheet 2.
Suggested Citation
Young, H., Parliman, D., Jones, M., 1992, Seasonal changes in ground-water quality and ground-water levels and directions of ground-water movement in southern Elmore County, southwestern Idaho, including Mountain Home Air Force Base, 1990-91: U.S. Geological Survey Water-Resources Investigations Report 92-4027, Report: 22 p.; 2 Plates: 43.33 x 35.08 inches and 43.13 x 31.19 inches, https://doi.org/10.3133/wri924027.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Seasonal changes in ground-water quality and ground-water levels and directions of ground-water movement in southern Elmore County, southwestern Idaho, including Mountain Home Air Force Base, 1990-91 |
| Series title | Water-Resources Investigations Report |
| Series number | 92-4027 |
| DOI | 10.3133/wri924027 |
| Year Published | 1992 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Idaho Water Science Center |
| Description | Report: 22 p.; 2 Plates: 43.33 x 35.08 inches and 43.13 x 31.19 inches |
| Country | United States |
| State | Idaho |
| County | Elmore County |
| Other Geospatial | Mountain Home Air Force Base |