Jeff Walker

Jeff Walker Executive Administrator

Jeff Walker was named Executive Administrator of the TWDB on May 19, 2016. He has served in various positions at the TWDB for more than 25 years, including as an Agricultural Conservation Specialist, a Financial Analyst, a Non-point Source Coordinator, and Director of Project Development. In his most recent role as Deputy Executive Administrator of Water Supply and Infrastructure, his areas of responsibility included state water planning, project development, financial assistance, project funds disbursement, financial program administration, water use and population projections, facility needs assessment, project inspection, and reporting. Walker holds a master of business administration from Texas State University and a bachelor of science in agricultural economics from Texas A&M University.

Amanda Lavin

Amanda Lavin Assistant Executive Administrator

Amanda Lavin is involved in the day-to-day operations of the TWDB. She previously served as Assistant Deputy for the office of Water Supply and Infrastructure and helped supervise the implementation of the State Water Implementation Fund for Texas (SWIFT) program. Lavin has more than 25 years of experience in public financing of infrastructure projects in Texas. Prior to joining the TWDB, she was a financial advisor to various political subdivisions in the Austin and Houston areas. With a strong knowledge of both the public and private sector, Lavin's focus is in building relationships with clients and stakeholders, thereby assisting entities to achieve their project goals.

Leadership Team

Carmen Cernosek

Carmen Cernosek Director of Governmental Relations/Senior Advisor

Carmen Cernosek joined the TWDB in 2015 and served in various positions before taking over the leadership of the Governmental Relations Division in June2018, while maintaining her role as Senior Advisor. She coordinates communications regarding legislative and policy matters affecting the agency. She provides leadership in developing TWDB's legislative priorities and ensures that TWDB's priorities are communicated effectively to the state's elected officials. Her 32 years in government service has taken her to Washington, DC, to work for a congressman, to the Texas Capitol to work for a state representative, to several state agencies, and to two Lt. Governors' offices. All her work has been concentrated in natural resources with an emphasis on water. She was fortunate enough to have had the opportunity to work on all the major water legislation of the last few decades: regional planning, environmental flows, and the creation of the State Water Implementation Fund for Texas. She has always wanted to work at the TWDB and feels that there is no better way to end her career than being part of the agency. She has a bachelor's degree in political science from Texas Lutheran University.

Todd Chenoweth

Todd Chenoweth General Counsel

Todd Chenoweth serves as General Counsel of the TWDB. He previously served as Senior Advisor to the Executive Administrator. Prior to joining the TWDB in November 2013, Chenoweth worked for 16 years at the Texas Commission on Environmental Quality and its predecessors, serving in the Water Policy Division, as section manager for Water Rights Permitting, as division director for the Water Supply Division, and as executive assistant to the director of the Office of Water. Chenoweth is a graduate of Texas A&M University, the University of Texas School of Law, and the John F. Kennedy School of Government at Harvard University.

John Dupnik

John Dupnik Deputy Executive Administrator, Water Science and Conservation

John Dupnik joined the TWDB in February 2018 as the Deputy Executive Administrator of the Office of Water Science and Conservation. Dupnik previously served as the general manager of the Barton Springs/Edwards Aquifer Conservation District, where he was employed since 2005. He also has eight years of experience in state government, including tenure with the Texas Commission on Environmental Quality and the Texas Department of Licensing and Regulation. Dupnik holds a bachelor's degree in environmental studies from Texas State University and a master's degree from the Jackson School of Geosciences at the University of Texas at Austin, where his research and thesis focused on Texas groundwater management. He is a Texas licensed professional geoscientist.

Edna Jackson

Edna Jackson Deputy Executive Administrator, Operations and Administration

Edna Jackson joined the TWDB in June 2014 and currently oversees the Support Services, Contract Administration, Human Resources, Central Records, and Information Technology business areas. She previously served the Office of the Governor for over 12 years, with 10 years as director of Human Resources. She is a current member of the Society for Human Resource Management and formerly served on the State Agency Council and Data Center Services Business Executive Leadership Committee. She holds Senior Professional in Human Resources and SHRM Senior Certified Professional certifications. Jackson received her bachelor's degree from the University of Texas at Austin and master of business administration from St. Edward's University.

Merry Klonower

Merry Klonower Chief Communications Officer

Merry Klonower joined the TWDB in 2006 and served in various positions before taking over the leadership of the Communications Office in 2011. She oversees the development and execution of public relations and communications initiatives for the agency, including media relations, social media, and editorial, creative, and publication services. Her career has spanned public relations and communications positions in higher education, the tech industry, and an agricultural commodity organization. Klonower has also served as adjunct faculty at several universities. She has a bachelor's degree in English from Iowa State University and a master's degree in English from the University of Texas at Austin.

Rebecca Trevino

Rebecca Trevino Chief Financial Officer

Rebecca Trevino joined the TWDB as its Chief Financial Officer in August 2016. She previously served as the deputy chief financial officer for the Texas Health and Human Services Commission. Trevino has held various financial leadership roles during her career, including that of chief financial officer to the Texas Department of Assistive and Rehabilitative Services and the TWDB. She holds a bachelor of business administration degree in accounting from the University of Texas and is a Certified Public Accountant.

Richard Wade

Richard Wade Deputy Executive Administrator, Texas Natural Resources Information System (TNRIS)

Richard Wade provides direction and management for all TNRIS-related activities and programs and serves as the Geographic Information Officer for Texas. He has 30 years of experience in Geographic Information System (GIS) technology and computer mapping. Wade started his career as an intern with TNRIS in 1986 and helped establish one of the first statewide GIS programs at the TWDB. He later went into the private sector where he was director of telecommunications and managed and maintained several high profile data contracts for companies that included Qualcomm, Motorola, and Verizon. Wade went on to co-found the Windrose Data Corporation, which provided GIS data and services to environmental and energy firms across the country. He returned to the TWDB in 2005. Wade holds a bachelor's degree in computer science from Texas State University.

Jessica Zuba

Jessica Zuba Deputy Executive Administrator, Water Supply and Infrastructure

Jessica Zuba joined the Texas Water Development Board (TWDB) in July 2001. She was named the Deputy Executive Administrator of Water Supply and Infrastructure in May 2016. Prior to this role, she served as the Director of Regional Water Planning and Development, which entailed managing six multi-disciplined regional teams that implement water and wastewater projects across the state. Her past positions at the TWDB also include Team Manager for the northeast region of the state and Financial Analyst. Zuba received a bachelor's degree in business administration with the distinction of magna cum laude from St. Edward's University.

Debt and Portfolio Management

Georgia Sanchez

Georgia Sanchez Debt Portfolio and Development Fund Manager

Georgia Sanchez joined the TWDB in March 2017. She previously served more than 23 years with the City of Austin in roles including assistant treasurer and investment officer, where she managed cash, investments, and debt programs, and corporate budget manager overseeing the implementation of the city’s capital improvements plan. She is a past president of the Government Treasurer’s Organization of Texas and the Texas Chapter of Women in Public Finance. Sanchez has been a longtime member of the Austin Association for Financial Professionals and National Charity League. She holds a bachelor of business administration degree in international business from the University of Texas at Austin.


Nicole Campbell

Nicole Campbell Director, Internal Audit

Nicole Campbell is responsible for providing the overall strategic direction, leadership, and planning for the Internal Audit Division. The division provides the Board with high quality, value-driven assurance and consulting services as a means to support the organization and improve operations through the strengthening of risk management, control, and governance processes. Prior to joining the TWDB in April 2015, Campbell worked for the Texas Department of Agriculture and the Texas Department of State Health Services and has 15 years of state government auditing experience. Her expertise includes conducting performance, financial, compliance, and information systems audits and investigations. Nicole is a graduate of the University of Texas at Austin with a bachelor's degree in economics and has earned designations as a Certified Internal Auditor and Certified Information Systems Auditor.