Stage I Water Conservation Period (May 1 – Sept. 30) - Voluntary Reduction in Pumping
image

Scientific Reports

The District strives to provide current and accessible documentation from the results of its many scientific studies. Below is a selected list of research areas and corresponding technical documents that can be used to better understand the hydrogeology of the District's aquifers.

Sustainable Yield, Groundwater Modeling, and DFCs
Hydrology, Drought, and Drought Trigger Methodology
Water-Level Monitoring
Saline-Water Zone/ASR
Edwards-Trinity Aquifer Connection & Characterization
Groundwater Tracing and Groundwater Flow Studies
Water-Quality Studies
Recharge and Recharge Enhancement
Geologic Mapping and Aquifer Characterization
Other Publications

Types and sources of publications

Abstracts are short summaries of scientific findings presented at technical conferences and meetings. Many abstracts are from conference or meeting proceedings such as the Geological Society of America (GSA), National Groundwater Association (NGWA), or the Austin Geological Society (AGS).

Data Series Reports contain basic data, with brief discussions of data, but does not contain significant interpretations. These are mostly BSEACD documents.

Reports are stand-alone technical documents that provide data and interpretations. These are generally produced by agencies like the BSEACD, US Geological Survey (USGS), City of Austin (COA), and the Texas Water Development Board (TWDB).  Some reports are done by consulting agencies such as HDR, Inc., or Southwest Research Institute (SWRI).

Papers are technical documents that provide data and interpretations usually within a collection of other related technical papers. These papers are often presented at conferences and found within meeting proceedings such as the Gulf Coast Association of Geological Societies (GCAGS), Austin Geological Society (AGS), or other sources.

Posters are technical summaries of scientific findings presented with an abstracts and key figures. Posters are often presented at conferences, but only abstracts are generally published in proceedings.

Sustainable Yield, Groundwater Modeling, and DFCs

Click here A Decision Support Systems Approach to Managing the Barton Springs Segment of the Edwards Aquifer, Central Texas GSA Abstract 2011
Click here Information in Support of the Drought DFC and Drought MAG, Barton Springs Segment of the Edwards Aquifer BSEACD Tech Note 2011
 Update of Groundwater Availability Model for Barton Springs Segment of the Edwards Aquifer Utilizing the Modflow-DCM code, SWRI Report, 2009 Update of Groundwater Availability Model for Barton Springs Segment of the Edwards Aquifer Utilizing the Modflow-DCM code SWRI  Report  2009
 Characterization and Management of a Karst Aquifer in Central Texas, GSA Abstract, 2008 Characterization and Management of a Karst Aquifer in Central Texas  GSA  Abstract  2008
Sustainable Yield of a Karst Aquifer in Central Texas, NGWA Karst paper, 2007 Sustainable Yield of a Karst Aquifer in Central Texas NGWA Karst Paper 2007
 Groundwater Flow in the Edwards Aquifer: Comparison of Groundwater Modeling and Dye Trace Results, ASCE Paper, 2005 Groundwater Flow in the Edwards Aquifer: Comparison of Groundwater Modeling and Dye Trace Results ASCE  Paper  2005
 Ground-Water Availability Modeling of the Three Major Segments of the Edwards Aquifer, Central Texas, NGWA Poster, 2005 Ground-Water Availability Modeling of the Three Major Segments of the Edwards Aquifer, Central Texas  NGWA  Poster  2005
 Groundwater Availability during Drought Conditions in the Edwards Aquifer, Hays and Travis Counties, Texas, GCAGS Paper, 2004 Groundwater Availability during Drought Conditions in the Edwards Aquifer, Hays and Travis Counties, Texas GCAGS  Paper  2004
 Sustainable Yield Studies of the Barton Springs Segment of the Edwards Aquifer, Edwards Symbposium, Extended Abstract, 2004 Sustainable Yield Studies of the Barton Springs Segment of the Edwards Aquifer Edwards Symposium Extended Abstract  2004
 Evaluation of Sustainable Yield of the Barton Springs Segment of the Edwards Aquifer, Hays and Travis Counties, Central Texas, BSEACD Data Series Report, 2004 Evaluation of Sustainable Yield of the Barton Springs Segment of the Edwards Aquifer, Hays and Travis Counties, Central Texas BSEACD  Report  2004

Drought and Drought Trigger Methodology

Drought Trigger Methodology for the Barton Springs Aquifer, Travis and Hays Counties, Texas BSEACD Report 2013
Real and Apparent Daily Springflow Fluctuations during Drought Conditions in a Karst Aquifer, Barton Springs Segment of the Edwards Aquifer, Central Texas GCAGS Transactions Paper 2012
click here for abstract Hydrologic Changes in Central Texas and their Implications for Aquifer Management 14th World Lake Conference Abstract 2011
A Comparison of the 1950s Drought of Record and the 2009 Drought,
Barton Springs Segment of the Edwards Aquifer, Central Texas
GCAGS Paper 2010
Drought Trigger Methodology for the Barton Springs Segment of the Edwards Aquifer, Travis and Hays Counties Austin Geological Society Poster 2006
Drought Trigger Methodology for a Karst Aquifer System: Barton Springs Segment of the Edwards Aquifer, Central Texas NGWA Abstract 2006

Water-Level Monitoring

Water Level Maps of the Edwards and Middle Trinity Aquifers, Central Texas

Water Level Geodatabase (for Access and GIS Users, zipped)

BSEACD Fact Sheet 2014

Spring 2009 Potentiometric Map of the Middle Trinity Aquifer in Groundwater Management Area 9, Central Texas

Click here for UT Digital Repository copy.

BSEACD Report 2010
  Potentiometric Maps for Low to High Flow Conditions, Barton Springs Segment of the Edwards Aquifer, Central Texas  BSEACD  Report  2007
Temporal Changes in Potentiometric Surfaces in a Karst Aquifer: Barton Springs Segment of the Edwards Aquifer, Central Texas NGWA Abstract 2007
  Groundwater Levels in the Balcones Fault Zone, Hays and Travis Counties, Texas 1937-2005  BSEACD  Report  2006
  Groundwater-Level Monitoring Program: Example from the Barton Springs Segment of the Edwards Aquifer, Central Texas  Texas Water Monitoring Congress (TWMC)  Paper  2004

Saline-Water Zone/ASR

If Not the Edwards, Then What? GCAGS Abstract 2012
Geophysical Delineation of the Freshwater/Saline-water Transition Zone in the Barton Springs Segment of the Edwards Aquifer, Travis and Hays Counties, Texas, September 2006 USGS Report 2007

Edwards-Trinity Aquifer Connection & Characterization

Evaluating the Hydrologic Connection of the Blanco River and Barton Springs Using Discharge and Geochemical Data Geological Society of America (GSA) Poster 2013
Hydrological and Geochemical Characteristics in the Edwards and Trinity Hydrostratigraphic Units using Multiport Monitor wells in the Balcones Fault Zone, Hays County, Central Texas Geological Society of America (GSA) Poster 2013
An investigation of vertical mixing between two carbonate aquifers using a multiport monitor well, central Texas American Geophysical Union (AGU) Poster 2011
Proceedings from the Feb. 2011 Karst Conservation Initiative Meeting Interconnection of the Trinity (Glen Rose) and Edwards Aquifers along the Balcones Fault Zone and Related Topics Proceedings from the Feb. 2011 Karst Conservation Initiative Meeting Proceedings July 2011
Hydraulic Interaction Between the Edwards and Trinity Aquifers Plate from the Hydrogeologic Atlas project Report 2010
"Barton Springs/Edwards Aquifer Conservation District uses ground water science to better understand Central Texas aquifers" Texas Groundwater Association's Fountainhead Newsletter Newsletter Article April 2011
Flow Potential Between Stacked Karst Aquifers in Central Texas 4th International Symposium on Karst (ISKA-2010) Paper (abstract only here) 2010
  Potential Hydraulic Connections Between the Edwards and Trinity Aquifers in the Balcones Fault Zone of Central Texas South Texas Geological Society (STGS)  Paper  2009
  Multilevel Monitoring and Characterization of the Edwards and Trinity Aquifers of Central Texas GCAGS Paper 2008
  Multilevel Monitoring and Characterization of the Edwards and Trinity Aquifers of Central Texas  GSA  Abstract  2008
Variability of Hydraulic Relationships Between the Edwards and Trinity Aquifers of the Balcones Fault Zone of Central Texas NGWA Abstract 2007

Groundwater Tracing and Groundwater Flow Studies

Evaluating the Hydrologic Connection of the Blanco River and Barton Springs using Discharge and Geochemical Data BSEACD Report of Investigations 2013
Dye Tracing REsults from the Arbor Trails Sinkhole, Barton Springs Segment of the Edwards Aquifer, Austin, Texas BSEACD Report of Investigations 2013
Dye Trace Simulation of an Accidental Spill Phase 10: State Highway 45 Southwest and MoPac South into Barton Springs Segment of the Edwards Aquifer Travis County, Texas. Short Report SR-13-01 City of Austin Report 2012
Tracing Groundwater Flowpaths in the Vicinity of San Marcos Springs, Texas Edwards Aquifer Authority (EAA) Report 2012
Hydrologic Connectivity in the Edwards Aquifer betweeen San Marcos Spring and Barton Springs during 2009 Drought Conditions Texas Water Journal Paper 2011
Click here Defining the Springsheds of Two Major Springs in Texas: San Marcos and Barton Springs GSA Abstract 2011
Hydrologic Connection of the Edwards Aquifer between
San Marcos Springs and Barton Springs, Texas
GCAGS Paper 2010
Evaluation of Hydrologic Connection between San Marcos Springs and Barton Springs through the Edwards Aquifer HDR, Inc. Report 2010
Summary of 2005 Groundwater Dye Tracing, Barton Springs Segment of the Edwards Aquifer, Hays and Travis Counties, Central Texas BSEACD Report 2006
Dye tracing recharge features under high-flow conditions, Onion Creek, Barton Springs Segment of the Edwards aquifer, Hays County, Texas AGS Paper 2005
  Groundwater Flow in the Edwards Aquifer: Comparison of Groundwater Modeling and Dye Trace Results  ASCE  Paper  2005
  Flow Systems of the Edwards Aquifer Barton Springs Segment, Interpreted from Tracing and Associated Field Studies Edwards Symposium  Paper  2004
Summary of Groundwater Dye Tracing Studies (1996-2002), Barton Springs Segment of the Edwards Aquifer BSEACD Report 2002

Water-Quality Studies

A Survey of Dissolved Oxygen in Groundwater During Drought Conditions, Barton Springs Segment of the Edwards Aquifer, Central Texas 14th World Lake Conference Poster 2011
  Groundwater Chemistry in Southern Travis and Northern Hays Counties, Texas, 1998 through 2008  BSEACD Data Series  2009
  Water Quality Study of the Barton Springs Segment of the Edwards Aquifer, Southern Travis and Northern Hays Counties, Texas  BSEACD Report  2001

Recharge and Recharge Enhancement

Enhanced recharge to the Barton Springs segment of the Edwards Aquifer, Central Texas Carbonates and Evaporites (Journal) Paper 2013
Temporal Trends in Precipitation and hydrologic Responses Affecting the Barton Springs Segment of the Edwards Aquifer, Central Texas GCAGS Transactions Paper 2012
Onion Creek Recharge Project Northern Hays County, Texas BSEACD Report August 2011
Long-Term Trends in Precipitation, Streamflow, and Barton Springs Discharge, Central Texas 2011 Karst Hydrogeology & Ecosystems Conference Poster June 2011
Recharge Enhancement and Protection of a Karst Aquifer in Central Texas 4th International Symposium on Karst (ISKA-2010) Paper (abstract only here) 2010
Recharge Enhancement and Automated Monitoring of a Karst Aquifer in Central Texas Conference on Non-Point Source Pollution (NPS) Abstract 2007
Implementation of Best Management Practices to Reduce Nonpoint Source Loadings to Onion Creek Recharge Features BSEACD Report 1998

Geologic Mapping and Aquifer Characterization

Revisiting the Hydrologic Divide Between the San Antonio and Barton Springs Segments of the Edwards Aquifer: Insights from Recent Studies GCAGS Journal Paper 2012
Resistivity Imaging and Natural Potential Applications to the Antioch Fault Zone in the Onion Creek/Barton Springs Segment of the Edwards Aquifer, Buda, Texas GCAGS Transactions Paper 2012

Hydrogeologic Atlas of the Hill Country Trinity Aquifer, Blanco, Hays, and Travis Counties, Central Texas

HTGCD, BSEACD, BPGCD Report 2010

Compilation of Pumping Tests in Travis and Hays Counties, Central Texas

BSEACD Data Series 2010

Other Publications

Cover-collapse sinkhole development in the Cretaceous Edwards Limestone, central Texas 13th Sinkhole Conference (Carlsbad, NM) Paper 2013
Recharge Enhancement, Multiport Well Monitoring, Geophysics, and Springflow: Barton Springs Segment of hte Edwards Aquifer BSEACD and COA Fieldtrip Guidebook 2011
Three-Dimensional Geologic Model of the Barton Springs Segment of the Edwards Aquifer, Central Texas GCAGS Paper 2010
Fieldtrip Guidebook: Recharge and Discharge Features of the Edwards and Trinity Aquifers, Central Texas International Congress Speleology (ICS) Field Trip Guide 2009
  Wells and Pumping (1989-2006) in the Barton Springs/Edwards Aquifer Conservation District, Central Texas  BSEACD  Data Series  2006