Queen City and Carrizo-Wilcox aquifers, East Texas: Brackish Groundwater Study interactive map

Study Summary:

The Eastern portion of the Queen City and Carrizo-Wilcox Aquifers (East Queen City and Carrizo-Wilcox aquifers) study area investigated for this report is a subset of the Upper Coastal Plains East study area designated by the BRACS program. The Upper Coastal Plains East study area will be split into three separate studies: 1) East Sparta aquifer, 2) East Queen City and Carrizo-Wilcox aquifers, and the 3) East Yegua-Jackson aquifer.

The goals of the study are to (1) map and characterize the Queen City and Carrizo-Wilcox Aquifers of the study area in greater detail using existing water well reports, geophysical well logs, and available aquifer data and (2) build datasets that can be used for groundwater exploration and replicable numerical groundwater flow models to estimate aquifer productivity to estimate the volumes of groundwater in as many as five salinity classes. The study area includes all or part of 55 counties in east Texas.

The objectives of the study are to:

  • collect, analyze, and interpret thousands of water well and geophysical well logs;
  • map the geological boundaries of the Queen City and Carrizo-Wilcox aquifers and the bounding aquitards: Weches, Reklaw, and Midway;
  • map the distribution of total dissolved solids in the aquifers;
  • map the distribution of key chemical parameters of interest to desalination;
  • map the net sand distribution in the aquifers;
  • estimate the volume of fresh and brackish water in the aquifers;
  • incorporate newly created information into the publicly available BRACS Database and study GIS datasets;
  • prepare and publish study findings in a TWDB report.
Study Team Members:
Kristie Laughlin and Olga Bauer
Study Start Date:
Summer 2022
Study Completion Date:
Summer 2025
The study will develop data and a report that will be available to researchers and decision-makers to assist in the site selection of future groundwater desalination, aquifer storage and recovery projects, and groundwater availability models.

Study Details


Study Investigators:

Texas Water Development Board
1700 N. Congress Avenue
Austin, TX 78711

Kristie Laughlin, P.G.

Olga Bauer

Engaged Stakeholders:

Stakeholder Meetings


Final Report

  • The final report has not yet been produced.