Summary of ground-water data, Post Headquarters and adjacent areas, White Sands Missile Range

Abstract

Geohydrologic data have been obtained from more than 100 wells and test holes that have been drilled in the Post Headquarters and adjacent areas of ~~ite Sands Missile Range. Observation-well data show that, in general, a continuous decline of the water table has occurred in the vicinity of the well field since production began in 1949. Approximately 40,000 acre-feet of water has been produced from the aquifer to date (1972). A series of maps are presented which show the changes that have occurred in the well field as the result of development.

Simulated water-level and water-quality changes in the bolson-fill aquifer, Post Headquarters area, White Sands Missile Range, New Mexico

“…I The water-level change from 1972 to 1978 is shown in figure 10. Because additional boreholes were available after 1972, a more complete picture of the water-level change could be compiled than that compiled by Kelly (1973). The same general trend in water-level fluctuations continued during this period with declines in nearly all wells except in the southern part of the reentrant, where water-level increases occurred.…”

“…The thickness of the freshwater beneath the reentrant is not well known. Kelly (1973, fig. 31) showed the thickness of freshwater beneath the Post Headquarters well field to be at least 1,500 feet, mainly on the basis of results of electrical soundings by Zohdy and others (1969, fig.…”

“…Cooper (1970) made a summary of supply-and test-well records in the Post area. Kelly (1973) summarized available ground-water data and included a discussion of water-level changes, hydraulic properties, and ground-water chemistry. Kelly ?…”

“…1). The freshwater occurs in a zone that extends 3 to 5 miles from the mountain front (Kelly, 1973, fig. 31).…”

“…The thickness of freshwater below the Post Headquarers well field was estimated to be 1,500 to 1,800 feet (McLean, 1970, p. 49;Kelly, 1973, fig. 31).…”