Digital data sets that describe aquifer characteristics of the alluvial and terrace deposits along the North Canadian River from Oklahoma City to Eufaula Lake in east-central Oklahoma

This data set consists of digital water-level elevation contours
for the alluvial and terrace deposits along the North Canadian
River from Oklahoma City to Eufaula Lake in east-central
Oklahoma for 1982. Ground water in 710 square miles of
Quaternary-age alluvial and terrace deposits along the North
Canadian River is an important source of water for irrigation,
industrial, municipal, stock, and domestic supplies. The
aquifer, composed of alluvial and terrace deposits, consists of
sand, silt, clay, and gravel. The aquifer is underlain and in
hydraulic connection with the upper zone of the Permian-age
Garber-Wellington aquifer and the Pennsylvanian-age Ada-Vamoosa
aquifer.

Water-level elevation contours based on water-levels measured in
1982 and some water-levels measured prior to 1964 for wells
completed in a terrace aquifer in the Oklahoma City area were
digitized from a published report. Water-level elevations in
this data set range from 1,280 feet above sea level in the west
to 580 feet in the east. The water-level elevation contours were
digitized from a mylar-base map at a scale of 1:250,000.