Several U.
S. Geological Survey projects,supported by the National Cooperative Geologic Mapping Program, have used multi-disciplinary approaches over a 14-year period to reveal the surface and subsurface geologic frameworks of the Edwards and Trinity aquifers of central Texas and the Arbuckle-Simpson aquifer of south-central Oklahoma. Some of the project achievements include advancements in hydrostratigraphic mapping, or three-dimensional subsurface framework modeling,and airborne geophysical surveys as well as original methodologies that link geologic and groundwater flow models. One area where some of these milestones were achieved was in and around the U.
S. Army Camp Stanley Storage Activity, located in northÂwestern Bexar County, and Texas,approximately 19 miles northÂwest of downtown San Antonio.
Source: usgs.gov