Executive Management

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The Governing Board appoints the agency's Executive Director (subject to approval by the Governor, and confirmation by the Florida Senate). The Executive Director carries out the Board's directives.


Reports to the Governing Board
Photo of Peter Antonacci
Peter Antonacci, Executive Director
Contact: Lourdes Elias
Peter Antonacci became Executive Director of the South Florida Water Management District in October 2015. He brings more than three decades of extensive experience in Florida state government, finance and law to this leadership role.
He served as General Counsel to Governor Rick Scott from 2013 to 2015 and previously as State Attorney for the 15th Judicial Circuit in Palm Beach County. He served as a Governing Board member at the Northwest Florida Water Management District from 2006 to 2012. From 1991 to 1997, he was Bob Butterworth's Deputy Attorney General where he managed major litigation involving a variety of issues, including state lands.
Raised in Hialeah, he attended Hialeah High School and Miami Dade College. He also attended Florida State University where he earned a Bachelor of Arts as well as a master's degree in Urban and Regional Planning. He earned his Juris Doctorate from the Florida State University College of Law. more »

Timothy Beirnes, CPA, Inspector General
Contact: Ann Haga
With nearly 30 years of audit and investigative experience, Tim Beirnes was appointed by the Governing Board to serve as District Inspector General effective November 2011.
Mr. Beirnes received his Bachelor of Science in Business Administration and Accounting from Palm Beach Atlantic University and his MBA from Florida Atlantic University. In addition to being a Certified Public Accountant, he holds numerous other professional certifications and is an active member of several national auditing and accounting associations. more » 


Reports to the Executive Director
Len J. Lindahl, P.E., Assistant Executive Director
Contact: Haley Koptak
Len J. Lindahl, P.E., has more than 18 years of experience in water resource engineering and complex project management. His diverse expertise ranges from developing and implementing comprehensive strategic plans and operational budgets, to a wide spectrum of civil and environmental engineering services.
Prior to joining the District in 2013, he served as vice president of Florida operations for a multinational Fortune 500 company providing technical and management support in a variety of markets including energy, water, transportation and the environment. Mr. Lindahl also has served as District Engineer for a number of South Florida local water control districts, responsible for regulatory, construction and operational components. His professional affiliations include the Florida Engineering Society, National Society of Professional Engineers, American Water Resources Association, Florida Association of Special Districts and the Water Management Institute.
Mr. Lindahl has a Bachelor of Science in Civil Engineering from Lafayette College and a Master of Science in Civil Engineering from Lehigh University. A life-long Jupiter resident, he is a professional engineer registered in the state of Florida. more » 

Kirk L. Burns, General Counsel
Contact: Jennifer Aiton
Kirk L. Burns was appointed General Counsel in January 2015. He has more than 25 years of experience in environmental law practice, with the past 13 years at the South Florida Water Management District.
In his most recent leadership position as litigation managing attorney in the SFWMD Office of Counsel, he oversaw and helped resolve a number of key District legal cases. He has extensive knowledge regarding technical, scientific, policy and regulatory issues surrounding Everglades matters and helped reach consensus on the state's Restoration Strategies plan of action to further improve water quality.
Prior to joining the District in 2002, Mr. Burns was in private practice in Miami. He was admitted to the Florida Bar in 1985 and is Board Certified in State and Federal Government and Administrative Practice. He received a Bachelor of Science and his Juris Doctorate from Boston University. more » 


Division Directors
Terrie Bates, Water Resources Division Director
Contact: Haley Koptak
Terrie Bates joined the District in 1985 and has gained wide-ranging experience in environmental regulation, water supply, water quality, wetland mitigation, ecosystem restoration, applied science and watershed management issues. She directed a streamlining effort in environmental permitting to combine the state's surface water management, dredge & fill and sovereign submerged lands programs and to create the mitigation banking program.
Ms. Bates has held executive management responsibilities for overseeing the District's water shortage and drought response in 2006-2007 and again in 2011.
Born and raised in Palm Beach County, Ms. Bates received a Bachelor of Science in Forest Resources & Conservation from the University of Florida and a Master in Public Administration from Florida Atlantic University. more » 

Doug Bergstrom, Administrative Services Division Director
Contact: Lourdes Elias
Doug Bergstrom has 25 years of experience in public financial management and budgeting, working for government at both the federal and local levels. Early in his career he spent two years serving in the budget offices of the US Customs Service and the US Department of Agriculture in Washington, DC.
Mr. Bergstrom came to the District in 1988, working his way from entry-level analyst to budget supervisor before becoming the District's Budget Director in 2004. From 2009-2011, he oversaw the financial and business functions for Operations & Maintenance – the agency's largest work unit.
Mr. Bergstrom received a Bachelor of Science from Penn State University and a Master in Public Administration from George Mason University. more » 

Karen Estock, Field Operations & Land Management Division Director
Contact: Candy McCulloch
Karen Estock initially joined the District in 2004 as Director of the West Palm Beach Field Station and most recently served as Bureau Chief for Infrastructure Management. Her responsibilities included overseeing the District's structure inspection program, surveying and hydrologic data acquisition and management.
Previously, Ms. Estock worked for the U.S. Army Corps of Engineers for 22 years where she rose to Chief, Field Operations and Readiness, in the Clewiston Office. Her duties included operations and maintenance of the Herbert Hoover Dike, Lake Okeechobee, the Okeechobee Waterway and its associated infrastructure.
She has a Bachelor of Science in Natural Resource Management from Pennsylvania State University and is a graduate of the Corps' Emerging Leaders Program. more »  

Jeff Kivett, P.E., Operations, Engineering & Construction Division Director
Contact: Candy McCulloch
Jeff Kivett, P.E., previously served as the District's Bureau Chief for Engineering and Construction. He was responsible for oversight of the District's restoration and capital projects, ranging from reservoirs and stormwater treatment areas to flood control system improvements.
Before joining the District in 2007, Mr. Kivett worked in the private sector and also for the City of Los Angeles. In 2009-2010, he was recognized by the American Society of Civil Engineers as Florida Government Engineer of the Year.
Mr. Kivett holds a Bachelor of Science in Civil Engineering from Colorado State University and is a professional engineer registered in the state of Florida. more » 

Thomas M. Teets, AICP, Office of Everglades Policy & Coordination Division Director
Contact: Haley Koptak
Tom Teets was named Division Director in December 2014. Well-suited and experienced for this role, he has worked at the District on regional water resource planning and implementation for more than 25 years.
In his previous position as Federal Policy Chief for the District's ecosystem restoration initiative, he was responsible for helping lead the implementation of the Comprehensive Everglades Restoration Plan (CERP) and other federal projects for which the South Florida Water Management District is the local sponsor. He has a proven track record in successfully coordinating the diverse activities of multi-disciplinary teams and interagency collaboration in order to achieve results.
A certified planner, Mr. Teets received his Bachelor of Science from Indiana University and his Master of Science from the University of Florida. more » 

Sharon Trost, P.G., AICP, Regulation Division Director
Contact: Haley Koptak
Sharon Trost, P.G., AICP, has been with the District for more than 30 years. First hired as a hydrogeologist, Ms. Trost has managed divisions and departments throughout the agency, bringing her technical, organizational and leadership skills to the following areas: data collection, regulation, planning, research, ecosystem restoration, Everglades stormwater, operations and information technology.
Ms. Trost has a Bachelor of Science in Geological Sciences from Lehigh University and a Master of Science in Engineering Management from the University of South Florida. She is a licensed professional geologist and a certified land use and environmental planner. more » 

Bernard J. Ward, SR/WA, Real Estate Division Director
Contact: Andrea Schluter
Ben Ward has 30 years of experience handling public-sector projects, addressing complex real estate challenges and helping engineers and construction teams succeed with project implementation.
Prior to joining the District in 2014, Mr. Ward most recently served as Vice President and Senior Group Manager for Right of Way at Atkins North America. He has in-depth experience in acquisitions, leasing, surplus property management and eminent domain issues.
He received a Bachelor of Business Administration from the University of Iowa and holds the highest level of industry recognition as a Senior Right of Way Professional (SR/WA). more »  

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