Groundwater Aquifer Maps

This project provides computer-generated maps of water quality data for the major aquifers in Oklahoma.

Maps were generated for Total Dissolved Solids, Sulfates and Nitrates. The data came from an ambient monitoring effort begun by the Oklahoma Department of Environmental Quality two years ago and from historical public water supply well data.

There are sets of maps for bedrock and alluvial aquifers. Some aquifers lacked adequate data to support the creation of maps.

The maps are in Portable Document Format (PDF). Adobe Acrobat Reader is required to view these files.

Comments

1. These maps are computer generated. Contours were edited for clarity.
2. All the wells used in preparing these maps are public water supply wells. Public water supply wells must meet certain standards for construction and quality of water. Using public water supply wells may influence indicated water quality.
3. Wells used do not provide complete geographic coverage of the aquifers.
4. Well depth was not used to select wells. Well depth may influence water quality.
5. Some wells are completed in more than one aquifer.
6. Water quality may vary widely in any given aquifer.
7. Contour lines provide an indication of water quality and are not absolute indicators of quality.
8. These maps are for Total Dissolved Solids, Nitrate as Nitrogen and Sulfate from current monitoring and from historical data. Historical data is less reliable than current data but provides broader geographic coverage.
9. Some aquifers lack enough data to create a contour map of concentrations.