Sergio Joseph Calderon, the incumbent on the Water Replenishment District of Southern California's board of directors for Division 4, is seeking reelection in the Nov. 3, 2026, election.
The race is nonpartisan. Two other certified candidates are running: Jorgel Chavez and Samuel A. Peña.
Calderon's ballot designation for the election is "Director, Water Replenishment District of So. Calif.," according to BallotReady.
Candidate information
- Office sought: Water Replenishment District of Southern California, board of directors, Division 4
- Party: Nonpartisan
- Professional background: Calderon said he is a licensed practical nurse who has worked supporting individuals with developmental and intellectual disabilities in adult residential facilities, assisted surgical recovery patients in hospital settings, supported pediatric and geriatric patients via home health and provided hospice care, according to his campaign website. He has also worked as a career and technical education pathway adviser at Los Angeles Unified School District since 2012, according to BallotReady profile data.
- Education: Designated subject teacher credential coursework at the University of San Diego; coursework at East Los Angeles College, Cerritos College and California State University, Long Beach, according to the WRD website
- Memberships: California Council for Adult Education; Huntington Park/Bell Adult Leadership Advisory Board
Experience and public service
Calderon has served on the WRD board representing Division 4 since 2007, according to BallotReady.
On his campaign website, Calderon said he has served as mayor, councilmember, city clerk and director over the course of his public service career. He also said he worked as a teacher and teacher adviser at the LAUSD Division of Adult and Career Education starting in 2004, and as proprietor and operator of CPR Angeles.
Calderon served on the Maywood City Council. He resigned from that seat as part of a settlement with the Los Angeles County District Attorney's Office, according to a district attorney press release dated Jan. 3, 2018.
He also worked as an administrator at Redwood Family Care Network from 2021 to 2022, according to BallotReady.
On the issues
Water independence: Calderon said he is a strong supporter of WRD's Water Independence Now Program, known as WIN. He said he believes the region can grow to be independent from imported water for basin recharge through sound stewardship and innovative measures, according to the WRD website.
Candidate information in this profile is drawn from the candidate's campaign website, the WRD website, BallotReady data and public records.
