Digital data sets that describe aquifer characteristics of the Central Oklahoma aquifer in central Oklahoma

This data set consists of digitized polygons of a constant
hydraulic conductivity value for the Central Oklahoma aquifer
in central Oklahoma. This area encompasses all or part of
Cleveland, Lincoln, Logan, Oklahoma, Payne, and Pottawatomie
Counties. The Central Oklahoma aquifer includes the alluvial
and terrace deposits along major streams, the Garber
Sandstone and Wellington Formations, and the Chase, Council
Grove, and Admire Groups. The Quaternary-age alluvial and
terrace deposits consist of unconsolidated clay, silt, sand,
and gravel.

The hydraulic conductivity data set was created from digital
data sets developed to produce a map for a previously
published report. The hydraulic conductivity of the alluvial
and terrace deposits are not included in this data set. This
data set represents the hydraulic conductivities of only the
sandstone units in the Garber Sandstone and Wellington
Formations and the Chase, Council Grove, and Admire Groups.
The median hydraulic conductivity of the sandstones in the
Garber Sandstone and Wellington Formations and the Chase,
Council Grove, and Admire Groups, calculated from specific
capacity data, is 4.5 feet per day The contact between the
Wellington Formation and the Chase, Council Grove, and Admire
Groups was included in this data set because the median
percentage of sandstone in the Chase, Council Grove, and
Admire Groups is 43 percent of the median sandstone
percentage of the Garber Sandstone and Wellington
Formations. The hydraulic conductivity values for the other
rock units, such as the siltstone, mudstone, shale, and
limestone, in the Garber Sandstone and Wellington Formations
and the Chase, Council Grove, and Admire Groups were not
reported.