Charles M. Hickman, P.E.

Executive Manager of Engineering

Executive Manager of Engineering Charles “Charlie” Hickman directs the design and construction of capital improvement projects, oversees water resource planning and provides operational assistance on technical procedures and issues related to existing Guadalupe-Blanco River Authority facilities and structures. Hickman also leads the monitoring of flow conditions throughout the Guadalupe River Basin, interpretation of hydrologic events…

David Harris

Executive Manager of Operations

Executive Manager of Operations David Harris serves as the Chief Operations Officer for the Guadalupe-Blanco River Authority, overseeing 10 water systems, 14 wastewater treatment operations, five pipelines, five hydroelectric plants, three parks and one diversion system. Harris is responsible for ensuring the provision of technical assistance for GBRA’s water and wastewater facilities and assists in…

Jonathan Stinson

Deputy General Manager

Deputy General Manager Jonathan Stinson directs the development and implementation of programs and policies, ensuring compliance with the Guadalupe-Blanco River Authority’s governance, management, operational structure, and statutory regulations. Stinson represents GBRA in public affairs while assisting with the management of daily administrative and operational activities. Stinson represents GBRA as a member of the South Central…

Darrell Nichols

General Manager/CEO

General Manager/CEO Darrell Nichols oversees policy development and implementation as well as daily operational and administrative activities for the Guadalupe-Blanco River Authority and its 29 operating divisions. Since joining GBRA in 2016 as the Senior Deputy General Manager, he has directed more than $300 million in capital improvement projects while managing project development, financing, construction…

William Carbonara

Director

DeWitt County Reappointed: 2020 Term Expiration: 2025 William Carbonara of Cuero is an account executive at JHC Insurance Agency and represents DeWitt County. Currently, he is on the Resource Development Committee for the Boys and Girls Club of DeWitt County and is vice president of the Cuero Little Dribblers Association. He previously served on the…

Refugio County Appointed: 2023 Term Expiration: 2029 Robert Blaschke of Woodsboro is a retiree from the DuPont Company and previously served as the Refugio County Judge. He is a board member of the Refugio County Community Development Foundation and is president of the Woodsboro Education Foundation. Blaschke attended Texas A&M University in Kingsville.

Steve Ehrig

Secretary/Treasurer

Gonzales County Reappointed: 2020 Term Expiration: 2025 Steve Ehrig, of Gonzales, is owner and partner of Ehrig Brothers Ag, E Barr Feeds, and E Brothers Ranches. He is a member of the Gonzales County Young Farmers, a director with the Houston Livestock Show and Rodeo and past president of the Texas Young Farmers. He is…

Sheila L. Old

Vice-Chair

Guadalupe County Appointed: 2021 Term Expiration: 2027 Sheila L. Old, a resident of Seguin, is president of The Old Law Firm, where she also serves as a practicing attorney. She is vice president of the Guadalupe County Bar Association and is a member of the State Bar of Texas, Texas Association of Family Defense Attorneys…

Dennis L. Patillo

Chair

Victoria County Reappointed: 2021 Term Expiration: 2027 Dennis Patillo, of Victoria is president of Evangelynn Hospitality LLC. He is the former president of Stewart Title of the Coastal Bend Inc. He is the past chairman of the Victoria Economic Development Corporation, the Houston Association of Realtors and the Texas Association of Realtors. Mr. Patillo has…