Scientific Reports

Status Report for Aquifer Storage and Recovery Pilot Project: Ruby Ranch Water Supply Corporation, Hays County, Central Texas

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Source: BSEACD
Format: Tech Note
Year: 2017

The Ruby Ranch Water Supply Corporation (RRWSC) and the Barton Springs/Edwards Aquifer Conservation District (District) cooperated on a project to test the Middle Trinity Aquifer as a reservoir for storage and recovery of fresh Edwards Aquifer groundwater. In March 2017, the Texas Commission on Environmental Quality (TCEQ) granted permission to conduct an ASR pilot project…

30 Years of Aquifer Science

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Source: BSEACD
Format: Fact Sheet
Year: 2017

Summary document (Fact Sheet 08-2017) of the major categories of District scientific studies and their implications for aquifer management. Compiled in honor of the District’s 30 year anniversary since it was created in 1987.

Surface-water and Groundwater Interactions in the Blanco River and Onion Creek Watersheds: Implications for the Trinity and Edwards Aquifers of Central Texas

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Source: South Texas Geological Society Bulletin
Format: Paper
Year: 2017

Recent groundwater studies reveal complex surface and groundwater interactions within the streams that link the Trinity and Edwards Aquifers of the Hill Country and Balcones Fault Zone. Current numerical models do not adequately account for these interactions. The purpose of this paper is to summarize recent studies within the Blanco River and Onion Creek watersheds.…

Hydraulic Conductivity Testing in the Edwards and Trinity Aquifers Using Multiport Monitor Well Systems, Hays County, Central Texas

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Source: BSEACD
Format: Report of Investigations
Year: 2016

Hydraulic conductivity is one of the defining characteristics of hydrostratigraphic units. Detailed and quantified permeability information from the units comprising the Edwards and Trinity Groups is lacking in central Texas. These rock groups comprise important karstic and fractured carbonate aquifers. To better manage water resources and understand fate and transport of contaminants, the hydraulic parameters…

Surface-Water and Groundwater Interactions along Onion Creek, Central Texas

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Source: GCAGS
Format: Paper
Year: 2016

Onion Creek is an important hydrologic link between two major aquifers in Central Texas. Multiple small springs discharging from the Trinity Aquifers sustain base flow in Onion Creek, which in turn recharges the Edwards Aquifer, ultimately discharging at Barton and San Marcos Springs. The creek generally contains clear, low nutrient water with high ecological and…

Central Texas GIS Geologic Map Project: Phase 1

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Source: BSEACD, UT-Austin
Format: Tech Note
Year: 2014

Detailed geologic maps are the foundation for any geologic, hydrogeologic, and engineering studies. However, consistent, seamless, detailed geologic maps are lacking for central Texas. In order to manage its groundwater resources with the best available data the District has embarked on a long-term project to produce a digital seamless Geographic Information System (GIS) geologic map.…

Evaluating the Hydrologic Connection of the Blanco River and Barton Springs Using Discharge and Geochemical Data

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Source: Geological Society of America (GSA)
Format: Poster
Year: 2013

Pleasant Valley Spring: A Newly Documented Karst Spring of the Texas Hill Country Trinity Aquifer

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Source: GSA
Format: Abstract
Year: 2013

Texas Hill Country springs provide baseflow for rivers that recharge the downstream Edwards Aquifer. This study is an initial characterization of Pleasant Valley Spring (PVS) and recognition of its significance for the Hill Country, Middle Trinity Aquifer, and the Edwards Aquifer. PVS is a perennial, artesian, karst spring complex located in the bed of the…

Influence of Faulting and Relay Ramp Structures on Groundwater Flow in the Karstic Edwards and Trinity Aquifers, Central Texas, USA

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Source: IAH Proceedings
Format: Abstract
Year: 2015

The Cretaceous-age Edwards and Middle Trinity Aquifers of central Texas are critical groundwater resources for human and ecological needs. These two major karst aquifers are stratigraphically stacked (Edwards over Trinity) and structurally juxtaposed (normal faulting) in the Balcones Fault Zone. Studies have long recognized the importance of faulting on the development of the karstic Edwards…

Potentiometric Investigation of Two Large Springs Discharging From the Middle Trinity Aquifer, Western Hays County, Texas.

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Source: UT Austin Poster Session
Format: Poster
Year: 2014

Pleasant Valley Spring (PVS) and Jacob’s Well Spring (JWS) are large karst springs providing perennial baseow to the Blanco River and Cypress Creek, respectively, which eventually recharges the Edwards Aquifer. In order to better understand groundwater ow and sources of recharge to these springs (springsheds), we created a potentiometric map of the area surrounding the…