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Explore Search: San Antonio segment of Edwards aquifer

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publication
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Occurrence of pharmaceutical compounds in the San Antonio segment of the Edwards (Balcones fault zone) aquifer, south-central Texas, June 2018–August 2020

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Contributing zones of the San Antonio, Barton Springs, and Northern segments of the Edwards Aquifer

publication
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Geochemical evolution processes and water-quality observations based on results of the National Water-Quality Assessment Program in the San Antonio segment of the Edwards aquifer, Texas, 1996-2006

publication
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Borehole geophysical, fluid, and hydraulic properties within and near the freshwater/saline-water transition zone, San Antonio segment of the Edwards aquifer, south-central Texas, 2010-11

publication
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Borehole geophysical, fluid, and hydraulic properties within and surrounding the freshwater/saline-water transition zone, San Antonio segment of the Edwards aquifer, south-central Texas, 2010-11

publication
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Sources of groundwater based on Helium analyses in and near the freshwater/saline-water transition zone of the San Antonio segment of the Edwards Aquifer, South-Central Texas, 2002-03

publication
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Water-level, borehole geophysical log, and water-quality data from wells transecting the freshwater/saline-water interface of the San Antonio segment of the Edwards Aquifer, South-Central Texas, 1999-2007

publication
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Lithologic and physicochemical properties and hydraulics of flow in and near the freshwater/saline-water transition zone, San Antonio segment of the Edwards aquifer, south-central Texas, based on water-level and borehole geophysical log data, 1999-2007

publication
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Water-quality observations of the San Antonio segment of the Edwards aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010–16

publication
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Quality of surface-water runoff in selected streams in the San Antonio segment of the Edwards aquifer recharge zone, Bexar County, Texas, 1997-2012

publication
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Temporal and spatial variability of water quality in the San Antonio segment of the Edwards aquifer recharge zone, Texas, with an emphasis on periods of groundwater recharge, September 2017–July 2019

Photography
Photograph showing pump hoist truck at Shavano Park at Fawn Drive

Pump hoist truck at Shavano Park at Fawn Drive

Photography
Photograph showing Groundwater sampling equipment at AY-68-27-610 (Parkwood Park)

Groundwater sampling equipment at AY-68-27-610 (Parkwood Park).

Photography
Photograph showing Comal 1 spring run

Comal 1 spring run

Photography
Photograph showing nitrate sensor at the Frio River at Concan, Tex.

Nitrate sensor at the Frio River at Concan, Tex.

Photography
Photograph showing Comal spring run

Comal spring run

Photography
Photograph showing Frio Stilling well

Frio Stilling well

Photography
Photograph showing dry Frio below Concan

Dry Frio below Concan

Photography
Photograph showing Helotes flood

Helotes flood

publication
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Conceptualization and simulation of the Edwards aquifer, San Antonio region, Texas

publication
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Water-level altitudes and continuous and discrete water quality at and near an aquifer storage and recovery site, Bexar, Atascosa, and Wilson Counties, Texas, June 2004-September 2011

State News Release
USGS

New Groundwater Model Provides Better Understanding of Edwards Aquifer

publication
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Evaluation of acoustic doppler velocity meters to quantify flow from Comal Springs and San Marcos Springs, Texas

publication
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Bibliography of the Edwards Aquifer, Texas, through 1993

Research
Photo of USGS scientist measuring flow downstream of Comal Springs, Texas.

Streamflow and Springflow at Comal and San Marcos River

publication
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Geologic Map of the Edwards Aquifer In Northern Medina and Northeastern Uvalde Counties, South-central Texas

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