Comal Trinity GCD Board of Directors

Larry (Skip) Hull


Larry Hull is a native Texan and a graduate of Texas A&M University.  Following graduation he served in the United States Army in the Republic of South Vietnam.  He retired from AT&T in 2000 after 32 years of service and returned to property on the Guadalupe River where he operates a small ranch and farm. Larry is the Past President of the Guadalupe River Association, Past President of the Comal County Emergency Services District No. 4, Past Secretary of the Bulverde-Spring Branch Emergency Services Council, serves on the Board of Directors of the State Association of Fire and Emergency Services Districts and Treasurer of the Comal County Child Welfare Board.  Larry was appointed to the Comal Trinity Groundwater District by Commissioner Eccleston from Precinct 1.  He appreciates the water concerns and the conservation efforts by all the citizens in Comal County and encourages participation in the efforts of their groundwater conservation district.  He can be contacted on his cellphone at (210) 414-2497. 

Current term expires 2023.

Dr. Larry Sunn

Dr. Larry Sunn was appointed to the Comal Trinity GCD Board of Directors by action of the Comal County Commissioners Court in 2015; he serves a four year term.  Appointed by Judge Krause to be the Comal Trinity GCD Board's representative from the greater Bulverde Spring Branch area, he serves the Trinity Aquifer interests of all Comal County residents.  A retired Marine Corps officer, Larry served two years in Vietnam with Marine Corps ground forces.  He is a retired university professor of statistics and research from the University of Redlands in Redlands, CA.  His earned Doctorate in Statistics and Research is from Brigham Young University (BYU) in Provo, UT.  He has been Lions Club member since 1978.  Dr. Sunn is CEO of Tidua, Inc,; a software development company specializing in performance auditing and compliance measurement.  Tidua is home-based in Bulverde and its clients include Royal Caribbean Cruise Lines of Miami, FL (yes, they do make him go on cruises); Watson Pharmaceuticals of Corona, CA; and Grifols Biologicals of Los Angeles, CA.  Retired as a Captain from the Marine Corps in 1982, Larry serves his community as a Director on this CTGCD Board, as a Commissioner on Bulverde’s Planning and Zoning Commission, as President of the Spring Branch Bulverde Family Lions Club, as a Commissioner on Bulverde's Park Commission, and as President of the Bulverde Community Parks Association.  Larry lives in Bulverde with his high school sweetheart and wife of 52 years, Margie.  They have two children and four grandchildren.  The Sunns retired to the Bulverde area in 2003 where they self-built a tri-geodesic dome complex as their home.  Dr Sunn can be reached regarding Comal Trinty GCD business by mail at the CTGCD mailing address: PO Box 450, Bulverde, TX 78163; by email at; or by phone at 210.286.8050.

Current term expires in 2023.

David Davenport


David Davenport was appointed to the Comal Trinity GCD Board of Directors by the Comal County Commissioners Court to represent the municipal interest in New Braunfels. He is a native Texan and has lived in Guadalupe and Comal County in the New Braunfels area all his life.  He serves a two year term on the Board.  He began his career as an operator for Springs Hill Water Supply Corporation in 1972.  From there he became Operations Manager of Green Valley Special Utility District in 1978 and moved to General Manger in 1982.  David Davenport is General Manager of Canyon Regional Water Authority.  He has held this position since 1992.  Canyon Regional is a wholesale regional water supply authority.  It is comprised of 12 utilities serving over 80,000 water service accounts.  Under his current employment he has developed an extensive knowledge of water right permitting and groundwater law.  He has spent considerable time at the Texas Legislature in the nature of monitoring the development of law regarding the water supply industry, including the legislation that created the Edwards Aquifer Authority, Gonzales County Groundwater District, Guadalupe Groundwater District, Canyon Regional Water Authority, Southeast Trinity Groundwater District, and many more.  He has been a Director of the Texas Section of the American Water Works Association, and is currently the representative for Guadalupe County on the South Central Texas Water Advisory Committee of the Edwards Aquifer Authority.  In addition to service in the water industry, David Davenport has been a council member and Mayor pro tem for the City of Marion, President of the Marion Lions Club, and an officer for several other social organizations.  He is a past Board member and Chair with the Water Oriented Recreation District of Comal County, past Chairman on the New Braunfels Parks Board and he is a Board member of the New Braunfels Parks Foundation and the Texas River Protection Association.  He has served as a member of the Board of the Hays Caldwell Public Utility Authority.  He currently is the Chairman of the River Advisory Committee with the City of New Braunfels.

Current term expires 2021.

Robert (Rob) Johnson

Vice President

Rob Johnson graduated from the University of Texas at Austin with a BBA in 1976 and earned his Juris Doctorate from South Texas College of Law in 1978. Since1984 he has been a Partner in the Austin law firm of Johnson & Johnson which specializes in work before the Texas Legislature and various state agencies. Rob's early job experience included work for the House of Representatives, Secretary of Senate, Legal Counsel to Senate Administration Committee, and the Business Tax Division of the Comptroller's office. He gained extensive civil litigation experience in private practice in the Houston area from 1979 to 1982. From 1986 to 2004 Rob served as Director/Shareholder of the Coastal Banc Savings Association in Houston, Texas. Coastal Banc Savings completed the first federally assisted takeover of insolvent Texas Savings & Loans under the Federal Home Loan Bank Board's Southwest Plan. This $3 billion institution was sold to Hibernia National Bank in May of 2004. From 2007 to 2010 Rob was Director/ Shareholder with Green Bank, Inc. of Houston, TX. From 2002 to 2013 he was a School Board Trustee with the New Braunfels Independent School District. From 1992 to 2002 Rob served as the Director and primary financier of the Capitol School of Austin, TX, a private non-profit school established in the Fall of 1990 as Austin's first educational group therapy setting created exclusively for young children with language based problems and learning disorders. Rob married Teresa Ohlrich of New Braunfels in 1985 and they are proud to be the parents of four children: Katie (28), attending South Texas College of Law; Haley (27); Jake (25), U.S.M.C.; and Ross (21), a student at Texas A&M University.

Current term expires 2021.

Jensie Madden

Precinct 4

A native Texan, Jensie Madden was appointed to the CTGCD board in November 2016 to complete the term of H.L. Saur, who resigned from the board to accept the position as District General Manager. She was appointed by County Commissioner Jen Crownover, Precinct 4. Following a career as an early childhood educator in San Antonio, Jensie and her husband Dan retired to Comal County in 2001. They live in the straw bale home they built themselves (with the help of friends), designed for minimum impact on the environment, including a rainwater harvesting system that has provided for all of their water needs for the past fifteen years. Jensie served on the Citizen Advisory Committee for the Comal County Regional Habitat Conservation Plan, and she also participated in the Stakeholders Group that worked for the establishment of the Comal Trinity GCD. Other community activities include membership and volunteer work with Texas Master Naturalists, Lindheimer Chapter; Texas Stream Team; Gorge Preservation Society; Heritage Museum of the Texas Hill Country; and Fischer Store School Community Center. She has had a leadership position in the League of Women Voters-Comal Area for many years, focusing both on voter education efforts before elections and on issue study and advocacy.

Current term expires 2021.

David Heier

Precinct 2

Mr. Heier was appointed by the Comal County Commissioner's Court to Precincint 2 on August 29, 2019.  He is a 16-year veteran of the Garden Ridge Water Commission.  Current term expires 2023.

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Comal Trinity

Groundwater Conservation District

We are working tirelessly to protect your Trinity Aquifer water resources.  If you have questions, feel free to contact us at:

PO Box 664, Spring Branch, TX 78070

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