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Texas Water Science Center

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USGS Water Science Centers are located in each state.

There is a USGS Water Science Center office in each State. Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii New York Vermont New Hampshire Maine Massachusetts South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

Texas Water Science Center Seminars

The Texas Water Science Center conducts occasional in-office seminars about various water topics. The public is invited to attend. These presentations will begin at 11 AM in the large conference room at the Texas Water Science Center, 1505 Ferguson Lane in Austin. Please plan to carpool if you attend these sessions. The seminars are usually during lunchtime, so feel free to bring your lunch.

If you would like to be notified of upcoming seminars via e-mail, then just send us your name and email address. The list also will be used to notify its members of seminar cancellations or other schedule changes.

Map and driving directions  to our office. Map and driving directions to our office.

Seminar archive

Upcoming Seminars

Friday, August 25, 11:00 am Cancelled; will be rescheduled.

A New Regional Investigation of Groundwater Availability of the Coastal Lowlands Aquifer System: An Overview of Objectives and Approach

Presented by: Linzy Foster, Civil Engineer, USGS Texas Water Science Center


In Fiscal Year 2017, the USGS began a new project to investigate the regional groundwater availability of the Coastal Lowlands Aquifer System (CLAS). In Texas, the CLAS includes the Chicot, Evangeline, and Jasper aquifers, and equivalent aquifer units. This project is a 5-year effort funded by the USGS Water Availability and Use Science Program. The focus of the investigation is on improving understanding of historical, current, and future groundwater availability of the CLAS through development of an improved regional conceptual model, MODFLOW6 numerical model, and application of linear and non-linear uncertainty quantification (UQ) methods. A new subsidence package for MODFLOW6 is also being developed as a part of this project. Several products and associated publications are planned during this investigation: including an unconstrained model along with prior uncertainty at the midpoint of the project, and a final history-matched model with post-calibration uncertainty bounds of model-input parameters and predictions of interest.


Linzy Foster is a Civil Engineer in the Austin office of the USGS Texas Water Science Center and is the co-Principal Investigator on the new CLAS investigation, along with Brian Clark of the Lower Mississippi-Gulf Water Science Center. Her work is focused on development of groundwater flow and transport models, and the application of uncertainty analysis to these models to answer questions about groundwater resources. Linzy has a B.A. in Mathematics from Maryville College and a M.S. in Civil Engineering from Auburn University.

Location: Conference Room B2 – Texas Water Science Center - Central Texas Program Office, Austin

Contact: Lynne Fahlquist

Sept 15 - Andy Teeple, Southern High Plains Groundwater Hydrogeology Study

Recent Seminars


Daniel Pearson, Texas Water Science Center
USGS "Water On-the-Go" App Helps Keep Texans Safe with Current Stream Conditions

Glenn Harwell, Texas Water Science Center
Simulation of Streamflow and the Effects of Brush Management on Water Yields in the Double Mountain Fork Brazos River Watershed, Western Texas, 1994-2013 · Abstract

Dr. Randall Hunt, Wisconsin Water Science Center
The Promise and Peril of Large Integrated Models · Abstract


Dr. Stephen Opsahl, Texas Water Science Center
New Insights into Nitrate Dynamics in a Karst Groundwater System Gained from High-Frequency Optical Sensor Measurements · Abstract

Pete Van Metre, Texas Water Science Center
Effects of Multiple Chemical and Physical Stressors on Stream Ecology: The Regional Stream-Quality Assessments · Abstract

Daniel Pearson, Texas Water Science Center
USGS Texas Water Dashboard: Leveraging Innovative Web Mapping Solutions and Twitter to Distribute Real-time Water Information for the State of Texas · Abstract

Gregory Granato, New England Water Science Center
The Stochastic Empirical Loading and Dilution Model (SELDM) Provides Information Needed to Assess Risks for Adverse Effects of Runoff on Receiving Waters · Abstract

Barbara Mahler and MaryLynn Musgrove, Texas Water Science Center
Historical and Projected Climate and Hydrologic Response of Karst Aquifers, and Species Vulnerability in Texas and South Dakota · Abstract

Paul Barlow, USGS Office of Groundwater, Reston, VA
Streamflow Depletion by Wells—Concepts and Approaches for Understanding Groundwater-Pumping Impacts on Streamflow · Abstract


Francisco J.M. Simões, Visiting Guest Lecturer, Research Hydrologist, National Research Program, Golden, CO
Application of Multi-dimensional Modeling to Peak Flood Flow Estimation · Abstract

Complete Seminar archive

Seminar History Contact Information: Lynne Fahlquist,

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Page Last Modified: Friday, 25-Aug-2017 16:32:27 EDT