Geology Reports⌕ Search

Geology topics

D. W. Wilkins

Publications and source records attributed to D. W. Wilkins.

7 recordsLinked to original sources
USGS1998

Summary of the Southwest Alluvial Basins Regional Aquifer-System Analysis in parts of Colorado, New Mexico, and Texas

The Southwest Alluvial Basins Regional Aquifer-System Analysis in parts of Colorado, New Mexico, and Texas consists of 22 alluvial basins along and adjacent to the Rio Grande. Geochemistry, recharge, and ground-water quality in the San Luis Basin in Colorado, and the Albuquerque-Belen, Socorro, and Mesilla basins in New Mexico are described. Ground-water flow systems were simulated in the San Luis, Albuquerque-Belen, and Mesilla basins.

Professional Paper↗
USGS1995

Description of geophysical-log data base for boreholes and wells in and adjacent to the Albuquerque Basin, New Mexico

Digital geophysical logs for boreholes and wells in and adjacent to the Albuquerque Basin area have been entered into a data base established by the New Mexico District of the U.S. Geological Survey and documented as of September 1994. The logs were digitized from paper or mylar copies or were collected as digital data during the logging of boreholes and wells. The location of these boreholes and wells with digital geophysical logs is shown in a map. The 1,020 logs and the types of logs for the 186 sites are listed in a table.

New Mexico↗
USGS1995

Ground-Water Hydrographs and 5-Year Ground-Water-Level Changes, 1984-93, for Selected Areas In and Adjacent to New Mexico

A cooperative observation-well monitoring program was begun in New Mexico in 1925 between the U.S. Geological Survey and the New Mexico State Engineer Office. The majority of the wells are located in New Mexico; however, a few are in Texas east of Curry and Roosevelt County, New Mexico, and in Colorado along the Rio Grande. The program presently includes 22 wells equipped with continuous water-level recorders and 34 monitoring areas in which selected wells are measured periodically, usually every 5 years, to record changes in ground-water levels. These monitoring areas are those where ground water is used in large quantities for irrigation, municipal, or industrial purposes. Water-level data and water-level changes computed from these data are used to determine areas of ground-water-level rises and declines. This information is necessary for management of ground-water resources in New Mexico. Included in this report are hydrographs of ground-water levels obtained from 22 wells equipped with continuous water-level recorders and maps of ground-water-level changes computed for a 5-year period in each of 34 monitoring areas. Well locations and ground-water-level data for a 5-year period are listed in tables for each monitoring area. Where available, plots of annual precipitation data for climatological stations within or adjacent to each monitoring area are included.

Open-File Report↗
USGS1987

Characteristics and properties of the basin-fill aquifer determined from three test wells west of Albuquerque, Bernalillo County, New Mexico

Three test wells were drilled west of Albuquerque; two are on the mesa west of the city, the third well is near the Rio Grande flood plain, west of the river. Test well 1, was drilled to a depth of 1,204 ft. Transmissivity of perforated intervals in the alluvial zone (980-1121 ft) ranged from 3.1 to 3.9 ft sq/day, and horizontal hydraulic conductivity from .02 to .03 ft/day. Vertical hydraulic conductivity of the semiconfining layer between the alluvial and volcanic zones is estimated to range from .00031 to .0031 ft/day. Transmissivity of the volcanic zone (1139-1179 ft) is about 81 ft sq/day, and horizontal hydraulic conductivity is about 2.0 ft/day. Dissolved-iron and manganese concentrations exceed recommended constituent limits for a public water supply. Vertical flow is upward; the potentiometric surface in the volcanic zone is about 2 ft higher than in the alluvial zone. Water levels are about 883 ft below land surface. Test well 2 was drilled to a depth of 1,828 ft below land surface with seven intervals open to the aquifer. During development, fine sand and silt entered the casing, filling it to a depth of 1,500 ft. The dissolved-cadmium concentration exceeds the maximum contaminant level and the dissolved-manganese concentration exceeds the recommended constituent limit for a public water supply. The vertical flow gradient is downward; the potentiometric surface in the middle and lower zones is about 17 ft lower than in the upper zones. Depth to water in the upper zone is about 767 below land surface and in the lower two zones the depth to water is about 784 ft below land surface. Test well 3 was drilled to a depth of 1,050 ft. Only the interval from 490 to 590 ft below land surface could be used to calculate transmissivity which was about 1,300 ft sq/day; horizontal hydraulic conductivity is about 13 ft/day. Quality of water is acceptable for a public water supply. Vertical flow is downward; the potentiometric surface in the deepest interval is about 7 ft lower than that in the uppermost zone. In the shallow interval from 350 to 590 ft below land surface, depth to water is about 24 ft below land surface. In the interval from 710 to 790 ft below land surface, depth to water is about 29 ft below land surface and in the interval from 870 to 1,050 ft below land surface, depth to water is 31 ft below land surface. (Author's abstract)

New Mexico↗
USGS1979

Water-resources investigations of the U.S. Geological Survey, New Mexico District, fiscal year 1978

This is the first of an annual series of reports in which the program of the New Mexico District, U.S. Geological Survey, Water Resources Division, will be summarized. This report, which is for fiscal year 1978, should be useful to cooperating agencies and to the users of water data in that it summarizes and gives the status of the basic data collection program and all current studies of the Water Resources Division in New Mexico. The water-resource programs of the District are composed of surface water, ground water, and water quality disciplines. As of April 1978 the District had 36 active projects, 30 reports for release, and answered about 5,000 requests for water related information. (Woodard-USGS)

Open-File Report↗
USGS1978

Maps showing ground-water conditions in the Yuma area, Yuma County, Arizona, 1975

In the Yuma area, Arizona, ground water is pumped mainly for the drainage of waterlogged land and for irrigation. In 1975 about 255,000 acre-feet of ground water was withdrawn, of which about 158,000 acre-feet was pumped for drainage of waterlogged land. For 1915-75, about 4,568,000 acre-feet was withdrawn, of which 2 ,387,000 acre-feet was pumped for drainage. Information shown on maps includes change in water level (1970-75) and irrigated area; depth to water and altitude of the water level; and specific conductance and fluoride concentration. A table of historical pumpage is included. (Woodard-USGS)

Arizona↗