Name: Elevation of the Base of the Combined Chase, Council Grove, and Admire Groups (ft) (Garber-Wellington)
Display Field: ELEM_TEXT
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Description: The structure-contour map of the altitude of the base of the combined Chase, Council Grove, and Admire Groups was created from the correlation of geologic logs across the study area. The Chase, Council Grove, and Admire Groups are composed of cross-bedded, fine-grained sandstone, shale, and thin limestone. The three groups are stratigraphically below the Wellington Formation. The thickness of these groups range from 570 to 940 feet with a median of 745 feet.
Definition Expression: N/A
Copyright Text: Modified by the OWRB from the 2013 USGS publication Hydrogeology and simulation of groundwater flow in the Central Oklahoma (Garber-Wellington) aquifer, Oklahoma, 1987 to 2009, and simulation of available water in storage, 2010-2059. Scientific Investigation Report 2013 - 5219. Authors: Shana L. Mashburn, Derek Ryter, Christopher R. Neel, S. Jerrod Smith, and Jessica S. Magers
Name: Elevation of the Base of the Wellington Formation (ft) (Garber-Wellington)
Display Field: ELEM_TEXT
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Description: The structure-contour map of the altitude in feet of the base of the Wellignton Formation was created from the correlation of geologic logs across the study area. The Wellington Formation consists of cross-bedded, fine-grained sandstone with interbedded shale or mudstone. Datum is National Geodetic Vertical Datum of 1929.
Definition Expression: N/A
Copyright Text: Modified by the OWRB from the 2013 USGS publication Hydrogeology and simulation of groundwater flow in the Central Oklahoma (Garber-Wellington) aquifer, Oklahoma, 1987 to 2009, and simulation of available water in storage, 2010-2059. Scientific Investigation Report 2013 - 5219. Authors: Shana L. Mashburn, Derek Ryter, Christopher R. Neel, S. Jerrod Smith, and Jessica S. Magers
Name: Elevation of the Base of the Hennessey Formation (ft) (Garber-Wellington)
Display Field: ELEM_TEXT
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Description: The structure-contour map of the altitude of the base of the Hennessey Group was created from the correlation of geologic logs across the study area and was originally published in Christenson and others (1992). The Permian-age Hennessey Group overlies the western part of the Central Oklahoma aquifer and consists of interbedded red shale, clay, and some siltstone or fine-grained sandstone. The Hennessey Group is composed of the Bison Formation, Salt Plain Formation, Kingman Formation, and the Fairmont Shale. Although not considered part of the Central Oklahoma aquifer, the Hennessey Group outcrops in the western one-third of teh aquifer area and acts as a confining layer. Total Thickness of the Hennessey Group ranges from 600 to 650 feet.
Definition Expression: N/A
Copyright Text: Modified by the OWRB from the 2013 USGS publication Hydrogeology and simulation of groundwater flow in the Central Oklahoma (Garber-Wellington) aquifer, Oklahoma, 1987 to 2009, and simulation of available water in storage, 2010-2059. Scientific Investigation Report 2013 - 5219. Authors: Shana L. Mashburn, Derek Ryter, Christopher R. Neel, S. Jerrod Smith, and Jessica S. Magers
Name: Elevation of the Base of Fresh Groundwater (ft) (Garber-Wellington)
Display Field: HACHURED
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Description: The structure-contour map of the altitude of the base of fresh groundwater constructed by Christenson and others (1992) using geophysical logs. The base of freshwater-elevation contours were used to determine the base of the aquifer and was defined at 5,000 mg/L dissolved solids.
Definition Expression: N/A
Copyright Text: Modified by the OWRB from the 2013 USGS publication Hydrogeology and simulation of groundwater flow in the Central Oklahoma (Garber-Wellington) aquifer, Oklahoma, 1987 to 2009, and simulation of available water in storage, 2010-2059. Scientific Investigation Report 2013 - 5219. Authors: Shana L. Mashburn, Derek Ryter, Christopher R. Neel, S. Jerrod Smith, and Jessica S. Magers
Description: The 1986-1987 potentiometric surface map was compiled in Christenson and others (1992) and Parkhurst and others (1996). Water levels were measured in more than 300 wells between December 22, 1986 and April 24, 1987.
Definition Expression: N/A
Copyright Text: Modified by the OWRB from the 2013 USGS publication Hydrogeology and simulation of groundwater flow in the Central Oklahoma (Garber-Wellington) aquifer, Oklahoma, 1987 to 2009, and simulation of available water in storage, 2010-2059. Scientific Investigation Report 2013 - 5219. Authors: Shana L. Mashburn, Derek Ryter, Christopher R. Neel, S. Jerrod Smith, and Jessica S. Magers
Description: Water levels were measured in 280 wells between February 17, 2009 and March 13, 2009 by the United States Geological Survey as part of their investigation of the Central Oklahoma (Garber-Wellington) aquifer and was originally published in Mashburn and Magers (2011).
Definition Expression: N/A
Copyright Text: Modified by the OWRB from the 2013 USGS publication Hydrogeology and simulation of groundwater flow in the Central Oklahoma (Garber-Wellington) aquifer, Oklahoma, 1987 to 2009, and simulation of available water in storage, 2010-2059. Scientific Investigation Report 2013 - 5219. Authors: Shana L. Mashburn, Derek Ryter, Christopher R. Neel, S. Jerrod Smith, and Jessica S. Magers