Scientific Reports

September 2023 Potentiometric Study of the Middle Trinity Aquifer, Central Texas

Topic: Sustainable Yield, Groundwater Modeling, and DFCs
Year: 2024
Format: Report
Source: BSEACD
The Middle Trinity Aquifer is a critical groundwater resource in Hays County, providing the sole source of drinking water to many residents living in the county. It is also the source of ecologically and culturally important artesian springs that provide baseflow to the Blanco River, which is the primary source…

The BSEACD Trinity Aquifer Sustainability Model: A Tool for Evaluating Sustainable Yield of the Trinity Aquifer in Hays County, Texas

Topic: Sustainable Yield, Groundwater Modeling, and DFCs
Year: 2023
Format: Report of Investigations
Source: BSEACD
View the executive summary here. The Trinity Aquifer in Hays County is an important groundwater resource which is the only available source of drinking water to people living in central and western Hays County, and is the source of ecologically, culturally, and economically important springs within the Blanco River Basin.…

Evaluating the Potential Groundwater Availability within a Lower Trinity Aquifer Well Field, Balcones Fault Zone, Hays County, Central Texas

Topic: Sustainable Yield, Groundwater Modeling, and DFCs
Year: 2020
Format: Report
Source: Justin Camp, Brian Hunt, Brian Smith
Groundwater availability from the Edwards and Middle Trinity Aquifers in the study area is generally limited, however, the Lower Trinity Aquifer within the study area is untested because of the aquifer depths, assumed low yields, and poor water quality. This study provides an initial assessment of groundwater availability in a…

Hydrogeologic Atlas of southwestern Travis County, Central Texas

Topic: Geologic Mapping and Aquifer Characterization
Year: 2020
Format: Abstract
Source: Brian Hunt, Lane Cockrell, Robin Gary, Jackie Vay, Vicky Kennedy, Brian Smith, and Justin Camp
The Hill Country Priority Groundwater Management Area (PGMA) was designated in 1990 in response to existing and projected groundwater availability issues within the Trinity aquifers. Anecdotal reports suggest current groundwater availability issues in the Southwestern Travis County (SWTC) portion of the PGMA. In the absence of a groundwater conservation district, the…

Geochemical Evaluation of Hydrogeologic Interaction Between the Edwards and Trinity Aquifers Based on Multiport Well Assessment in Central Texas

Topic: Water-Quality Studies
Year: 2020
Format: Paper
Source: Sinkhole Conference
The Edwards and Trinity Aquifers are major aquifers of Central Texas that provide water supply for over two million people and contain springs that are hydrologically and ecologically important to the region. The Edwards Aquifer overlies the Trinity Aquifer but is geologically juxtaposed along the Balcones Fault Zone. Thus, understanding…

Springshed Delineation in a Karst Aquifer in Hays County, Central Texas

Topic: Groundwater Tracing and Groundwater Flow Studies
Year: 2020
Format: Paper
Source: Sinkhole Conference
Hays County is experiencing some of the highest growth rates in the country, and groundwater is the primary option for water in the county. One spring in the study area, Jacob’s Well, experiences periodic cessation of flow due to a combination of drought and pumping from nearby water-supply wells. Jacob’s…

Hydrogeologic Atlas of Southwest Travis County, Central Texas

Topic: Edwards-Trinity Aquifer Connection & Characterization
Year: 2020
Format: Report of Investigations
Source: BSEACD
The full report or sections of the Atlas are available at the University of Texas at Austin Texas ScholarWorks. Click the title above or the “Read More” button below.

Data Compilation and Database Structure for the Geodatabase Accompanying the Hydrogeologic Atlas of Southwest Travis County, Central Texas

Topic: Geologic Mapping and Aquifer Characterization
Year: 2020
Format: Tech Note
Source: BSEACD
The Barton Springs/Edwards Aquifer Conservation District (BSEACD), in cooperation with Travis County, compiled existing and new hydrogeologic data to evaluate groundwater resources in southwestern Travis County (SWTC). Analysis and interpretation of these data provide the foundation for hydrogeologic evaluations presented in the Hydrogeologic Atlas of Southwest Travis County, Central Texas…

Evaluation for the Development of a Jacob’s Well Groundwater Management Zone in Hays County, Texas

Topic: Groundwater Tracing and Groundwater Flow Studies
Year: 2019
Format: Report
Source: The Meadows Center
Jacob’s Well is a karst spring originating from the Lower Cretaceous, Middle Trinity Aquifer and is located in the Cypress Creek watershed near Wimberley, Texas. The Middle Trinity Aquifer is the primary groundwater resource for water supply in the region. Jacob’s Well flow responds to climatic variations of both short-…

Estimating the number of Trinity Aquifer exempt wells in a recently annexed groundwater conservation district territory

Topic: Sustainable Yield, Groundwater Modeling, and DFCs
Year: 2019
Format: Abstract
Source: Robin Gary, Brian Hunt, and Lane Cockrell
In 2015, the Barton Springs/Edwards Aquifer Conservation District (District) annexed the eastern portion of Hays County coincident with the Edwards Aquifer Authority boundary to extend groundwater protection and management to the previously unregulated Trinity and other non-Edwards aquifers. To estimate Trinity Aquifer pumpage, first the number of Trinity Aquifer wells…