Ground-water levels in Arkansas, Spring 1990

Groundwater level measurements were made in 553 wells in Arkansas in the spring of 1990. These data are listed in tables by aquifer; then by county. For each surface, the altitude of the land surface, the data 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 1989 and 1990 and between 1985 and 1990. This report also contains maps showing the average water level change, by county, between the years 1985 and 1990 for the aquifers in the Quaternary deposits and the Sparta and Memphis Sands. Hydrographs are included for selected wells completed in the aquifers in the Quaternary deposits and the Sparta and Memphis Sands. (USGS)