The District is governed by a five-member Board of Directors who are elected to overlapping four year terms in even-numbered years. The District has five separate election divisions, each represented by a director residing in, and elected by the voters of, the division. The Board of Directors are responsible for setting District policy and establishing long-range goals and direction for the District to ensure that its operations continue to run efficiently and effectively, both today and in the decades to come.
Current Board
| Division I | Division II | Division III | Division IV | Division V |
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| President | First Vice President | Second Vice President | Director | Assistant Treasurer |
| Jerry Tang | Edwin M. Hilden | Theresa Lee | Kevin Hayakawa, Ph.D. | Scarlett P. Kwong |
| Term of Office 2019-2024 |
Term of Office 2002-2022 |
Term of Office 2016-2022 | Term of Office 2020-2024 | Term of Office 2007-2024 |
| 909-595-7554 Ext#201 | 909-595-7554 Ext#201 | 909-595-7554 Ext#201 | 909-595-7554 Ext#201 | 909-595-7554 Ext#304 |
| [Year First Elected/Appointed to the Board of Directors – Year Current Term Expires] | ||||
| Click here to view Election Information and Division Map | ||||
Division I
Walnut and a portion of West Covina
Jerry Tang
Mr. Jerry Tang, a Walnut resident since 1993, represents Division I on the Board of Directors. He was officially sworn into office on February 15, 2019 and currently serves as the District’s President. In addition to his role as President, Director Tang serves a Chair for the District’s Personnel Committee, Public Information Committee and is a member of the Debt Ad Hoc Committee. Furthermore, he serves as an Executive Committee Member of the Spadra Basin GSA Executive Committee and a Representative of the Puente Basin Water Agency.
Mr. Tang is an Environmental Scientist in the Technical Services Department of the Sanitation Districts of Los Angeles County (Sanitation Districts). His primary responsibilities include assessing and reporting on sediment condition, tissue bioaccumulation, and seafood safety monitoring results from the Palos Verdes Shelf (PVS). Mr. Tang is also the project lead for sediment coring activities and represents the Sanitation Districts in the USEPA’s PVS Technical Information Exchange Group and the PVS Institutional Controls Program: Fish Contamination Education Collaborative. Additionally, he represents the Sanitation Districts on the State Water Resources Control Board’s Stakeholder Advisory Group for the development of Sediment Quality Objectives. Mr. Tang has also participated in the Southern California Bight Regional Monitoring survey led by the Southern California Coastal Water Research Project (SCCWRP) since 1994 and provides his technical expertise to the State of California Bioaccumulation Oversight Group.
Mr. Tang holds a Bachelor of Science degree in Chemistry from the Chung-Yuan Christian University in Taiwan and a Master of Public Health degree in Environmental Health Science from the University of California, Los Angeles.
Mr. Tang is very active in many community organizations. He is a lifetime member of the Southern California Chinese-American Environmental Protection Association and an active member of the Chinese Institute of Engineers Southern California Chapter. Mr. Tang has attended the Rowland Heights Community Christian Church since 1998 where he has held multiple leadership roles during his time there.
Division II
North Diamond Bar
Edwin M. Hilden
Mr. Hilden has been a resident of Diamond Bar since 1966, a Walnut Valley District Board of Director since August 2002, and is a Certified Financial Planner. He obtained his Certified Financial Planning® (CFP) and Accredited Asset Management Specialist (AAMS) designations from the College for Financial Planning in Denver, CO.
Mr. Hilden has proudly served four terms as WVWD Board President and currently serves as the District’s Second Vice President. In addition to serving as Chair of the District’s Public Information Committee, member of the Finance Committee, and alternate member of the Personnel Committee, Mr. Hilden is an Alternate Commissioner of the Pomona-Walnut-Rowland Joint Water Line Commission, a representative to the Three Valley’s Municipal Water District, an alternate board member of the Association of California Water Agencies Joint Powers Insurance Authority (ACWA/JPIA), and a ACWA voting delegate.
Mr. Hilden has completed extensive education and training through the California Special Districts Governance Academy in the areas of Governance Foundations, Setting Direction and Community Leadership, The Board’s Role in Finance and Fiscal Accountability, and The Board’s Role in Human Resources. As a long-time Diamond Bar resident, he has served the local community through his active involvement in a number of community service activities and organizations for many years. The successful “Shop Diamond Bar” slogan and program was launched during his Presidency on the Diamond Bar Chamber of Commerce in 1989. Mr. Hilden served in the United States Air Force from 1952-1961, as a member of an air crew.
Division III
South Diamond Bar
Theresa Lee
Ms. Theresa Lee, a resident of Diamond Bar, was sworn in as a Walnut Valley Water District Board of Director on January 19, 2016. Ms. Lee served her first term as WVWD Board President in 2020. Currently, she serves as Chair of the District’s Finance Committee, member of Engineering and Special Projects Committee, and member of the District’s Debt Ad Hoc Committee. Director Lee additionally serves as Commissioner of the Puente Basin Water Agency, alternate member of the Spadra Basin GSA Executive Committee, is an ACWA Region 8 Delegate and ACWA/JPIA Property Program Committee member.
Ms. Lee is the current owner of a customer brokerage company and is a member of the Foreign Trade Association and the National Customs Brokers & Forwarders Association of America. She holds a Bachelors’ Degree in Biology from the University of Southern California.
Ms. Lee has been and remains very active in many community service organizations. Just some of the associations in which Ms. Lee volunteers her time include the United Abacus Arithmetic Association, the Chinese Institute of Engineers at Southern California, the Diamond Bar Chinese American Association, and the Guitar Foundation of America.
On a personal note, Ms. Lee is married and has two children.
Division IV
Rowland Heights
Kevin T. Hayakawa
In December 2020, Dr. Kevin T. Hayakawa was sworn in as a member of the Walnut Valley Water District Board of Directors. He was born and raised in Rowland Heights and is a proud graduate of local public schools including the Ybarra Academy of Arts and Technology, Rincon Intermediate School (Telesis Academy of Science and Math), and John A. Rowland High School. He is honored to have the opportunity to serve the community that shaped him into the person he is today. Dr. Hayakawa has held a wide range of both science communication roles and scientific research roles in the past. He is currently an Assistant Professor of Physics in the California State University system. In the past, Dr. Hayakawa has also worked at the Exoplanet Discovery and Science department at NASA’s Jet Propulsion Laboratory in Pasadena and the Planetarium at the Lawrence Hall of Science, a children’s museum, in Berkeley.
Dr. Hayakawa holds bachelor’s degrees in Physics and Astrophysics from UC Berkeley, a master’s degree in Astronomy from UCLA, and a Ph.D. in Astronomy and Astrophysics from UCLA.
In his capacity as Walnut Valley Water District Board member, Dr. Hayakawa serves as Chair of the District’s Engineering and Special Projects Committee and alternate member of the Public Information Committee. Furthermore, he is an alternate representative to the Three Valleys Municipal Water District and an ACWA Region 8 alternate delegate.
Dr. Hayakawa and his family have been involved in many community organizations over the years, including the Rowland Heights Community Coordinating Council (RHCCC) and the Rowland Heights Buckboard Days Parade Committee.
Division V
Portions of Diamond Bar, West Covina, Pomona, and Industry
Scarlett P. Kwong
Ms. Kwong holds a Bachelor of Science degree in Math/Computer Science from the University of California at Los Angeles. She was formerly a Project Engineer/Planning and Budget Manager in aerospace companies developing software systems for NASA Satellite Systems, and later, for Commercial Airline’s In-Flight Entertainment Systems.
Ms. Kwong was elected to the WVWD Board of Directors in 2007 and is currently serving as Assistant Treasurer. In conjunction with her duties of the Board, she chairs the WVWD Personnel Committee, is alternate member of the Finance Committee. Ms. Kwong represents the District as a Commissioner of the Pomona-Walnut-Rowland Joint Water Line Commission, alternate member of the Puente Basin Water Agency (a Joint Powers Authority of Walnut and Rowland Water Districts), and as the District’s SGV Regional Chamber of Commerce representative.
A Diamond Bar/Walnut resident since 1998, Ms. Kwong is active in many school and community organizations. She served as the President of the Chinese-American Elected Officials (CEO) Association 2017-2019, and has served on the Miss Diamond Bar Scholarship Pageant, Inc., Board of Directors since 2007. In 2017, Ms. Kwong received a CIE-USA Centennial Medal for her service to the Chinese Institute of Engineers – Southern California Chapter where she served as Chapter President 2013-2015.