Geohydrologic Framework of the Edwards and Trinity Aquifers, South-Central Texas
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The Edwards aquifer is one of the most productive carbonate aquifers in the United States. It also has been designated a sole source aquifer by the U.S. Environmental Protection Agency and is the primary source of water for San Antonio, America’s eighth largest city. The Trinity aquifer forms the catchment area for the Edwards aquifer and it intercepts some surface flow above the Edwards recharge zone. The Trinity may also contribute to the Edwards’ water budget by subsurface flow across formation boundaries at considerable depths. Dissolution, karst development, and faulting and fracturing in both aquifers directly control aquifer geometry by compartmentalizing the aquifer and creating unique ground-water flow paths.
USGS, Vol. FS 06-3145 (2007-08).
Edwards Aquifer, Geohydrologic Framework, Trinity Aquifers, South-Central Texas
Edwards Aquifer; Geohydrologic Framework; Trinity Aquifers; South-Central Texas
Blome, C.D.; Faith, J.R.; and Ozuna, G.B.,, "Geohydrologic Framework of the Edwards and Trinity Aquifers, South-Central Texas" (2007). KIP Articles. 2299.