Geology Reports⌕ Search

Geology topics

Paul W. Westerfield

Publications and source records attributed to Paul W. Westerfield.

11 recordsLinked to original sources
USGS1998

Altitude of the top of the Sparta Sand and Memphis Sand in three areas of Arkansas

The Sparta Sand and Memphis Sand form the second most productive aquifer in Arkansas. The Sparta Sand and Memphis Sand range in thick- ness from 0 to 900 feet, consisting of fine- to medium-grained sands interbedded with layers of silt, clay, shale, and minor amounts of lignite. Within the three areas of interest, the top surface of the Sparta Sand and Memphis Sand dips regionally east and southeast towards the axis of the Mississippi Embayment syncline and Desha Basin. Local variations in the top surface may be attributed to a combination of continued development of structural features, differential compaction, localized faulting, and erosion of the surface prior to subsequent inundation and deposition of younger sediments.

Water-Resources Investigations Report↗
USGS1995

Potentiometric surface of the Sparta and Memphis aquifers in eastern Arkansas, April through July 1993

A water-level map of the Sparta and Memphis aquifers for 1993 is presented in this map report. The Sparta-Memphis aquifer, consisting of sands of Eocene age, is present in much of southern and eastern Arkansas. The potentiometric surface map and long-term hydrographs illustrate the effects of large withdrawals for industrial and public supply and, to a lesser extent, agricultural use, on water levels in the aquifer. Three cones of depression, centered in Columbia, Jefferson, and Union Counties, occur in the potentiometric surface.

Arkansas↗
USGS1994

Water-level maps of the Mississippi River Valley alluvial aquifer in eastern Arkansas, spring 1992

Water-level maps of the Mississippi River Valley alluvial aquifer are presented for spring 1992 in this map report. The alluvial aquifer consists of sand and gravel in flood-plain and terrace deposits of Quaternary age and supplies much of the water used for irrigation and aquaculture in eastern Arkansas. The map of the potentiometric surface, 5-year water-level change, and depth to water illustrates the effects of large with- drawals for irrigation on water levels in the aquifer. One large area of depression in the potentiometric surface, caused by large with- drawals of ground water for irrigation, occurs in Arkansas, Lonoke, and Prairie Counties, and another extends from Monroe County to western Craighead County.

Open-File Report↗
USGS1989

Ground-water levels in the alluvial aquifer in eastern Arkansas, 1987

Groundwater level measurements of 516 wells that tap the alluvial aquifer in the Quaternary deposits of the Mississippi Alluvial Plain were made by U.S. Geological Survey and district Soil Conservation Service personnel during 1987. The shallowest prepumping water levels occurred in Ashley, Clay, Crittenden, Greene, Mississippi, Phillips, and Randolph Counties where water levels averaged less than 20 ft below the land surface. The deepest water levels occurred in Arkansas, Lonoke, Poinsett, and Prairie Counties where water levels of more than 100 ft below land surface were measured. Water levels in the postpumping season averaged about 3.3 ft lower than during the prepumping season. (USGS)

Open-File Report↗
USGS1988

Ground-water levels in Arkansas, spring 1988

Groundwater level measurements were made in 694 wells in Arkansas in the spring of 1988. These data are listed in tables by aquifer; then by county. For each well, the altitude of the land surface, the date measured, the depth to the water surface, and the altitude of the water surface are reported. Also reported are the net changes in water levels between 1987 and 1988 and between 1983 and 1988. This report also contains maps showing the average water level change, by county, between the years 1983 and 1988 for the aquifers in the Quaternary deposits and the Sparta and Memphis Sands. Hydrographs are included for selected wells completed in the Quaternary deposits and the Sparta and Memphis Sands. The aquifers in in the Quaternary deposits and the Sparta and Memphis Sands are important aquifers in eastern and southern Arkansas for agricultural, municipal, and industrial use. Water level data contained in this report showed an average decline of 1.12 ft in the aquifer in the Quaternary deposits, for the 24 most heavily irrigated counties of eastern Arkansas, and an average decline of 3.82 ft in the aquifer in the Sparta and Memphis Sands between the years 1983 and 1988. (USGS)

Open-File Report↗
USGS1977

Well records, water-level measurements, logs of test holes, and chemical analyses of ground water in the Cache River alluvial aquifer-stream system, northeast Arkansas, 1946-76

Most of the ground-water data for the Cache River alluvial aquifer-stream system in northeast Arkansas were collected between March 1973 and April 1976, but some were collected as early as April 1946. The data includes records of 363 wells and test holes, water-level measurements of 295 wells, logs of 32 test holes, and chemical analyses of water samples from 85 wells.

Arkansas↗