Board Meetings & Agendas

An eleven member Board of Directors supported by a professional staff governs Tri Delta Transit. The Board of Directors includes two representatives from each of the four incorporated cities served by Tri Delta Transit, two representatives from the county, and one at-large member appointed by the other members of the board. The board meets once a month at Tri Delta Transit’s administrative office.

Supervisor Diane Burgis proudly serves the 222,000 residents of Contra Costa County’s 3rd Supervisorial District, including Antioch, Bethel Island, Brentwood, Byron, Discovery Bay, Knightsen, and Oakley in East Contra Costa County.

She was elected to office in 2016 and re-elected in 2020 and 2024.

Diane serves on over 30 Board of Supervisor and regional committees, including as Chair of the Legislation Committee; Internal Operations Committee; and the Transportation, Water & Infrastructure Committee. As Chair of California’s Delta Protection Commission, she also serves as its representative on the State’s Delta Stewardship Council.

Diane’s priorities include protecting and enhancing the Delta ecosystem and water quality; promoting public safety with improved fire protection and law enforcement coverage; addressing the homelessness and housing affordability crisis; improving mental health response; bringing more services to East County; and building our local economy to bring jobs closer to home.

Prior to being elected to the Contra Costa County Board of Supervisors in 2016, Diane served as a trustee on the East Bay Regional Parks District Board, a member of the Oakley City Council, and as the Executive Director of Friends of the Marsh Creek Watershed.

Diane has called Contra Costa County home for most of her life. She raised her three sons in Oakley, and is a proud grandmother of two.

FEDERAL GLOVER has been serving District 5 residents on the Board of Supervisors since 2000. He was chairman of the board in 2004, 2008, 2013¬, and 2017. He began his sixth term in 2021 and is currently Chair of the Board for 2024.

Born and raised in Pittsburg, Federal has lived in District 5 all his life. After attending San Francisco State University, he began working for local industries including POSCO and Dow Chemical. At Dow, where he worked 22 years, he served in several capacities centering on training and safety.
In 1996, he won election to the Pittsburg City Council. From 1998 to 1999, Federal served as Mayor.
While on the Pittsburg City Council, Federal worked to improve the stability of the community. Under his leadership the City purchased its own Power Company and completed for the construction of the new City Hall and a new fire station.

As a County Supervisor, Federal implemented several ordinances and beefed-up county services that helped improve the quality of life for residents in his district and the rest of the county. He initiated the regional effort by East County cities and the county to secure funding for Highway 4 improvements and the eBART extension to Antioch and helped secure funding from regional, state and federal agencies for those improvements to the tune of $1-billion.

He created the Board of Supervisor’s Public Protection Committee for overseeing all issues pertaining to public safety and the justice system, including fire prevention, CERT training and realignment/reentry of state prisoners to be placed under county supervision.

He strongly supports the Urban Limit Line, which intends to rein in suburban sprawl and to preserve open space.

He initiated County youth conferences which give young people a chance to air their views to community leaders and get valuable information about careers and education.

The Faith Initiative brings together clergy of all faiths to present a common front against some of the issues facing family life in East County.
As the District V representative on the Contra Costa County Board of Supervisors, Federal is committed to reinforcing a sense of community by building bridges of trust, inclusion and cooperation among the diverse elements of District V.

He has been married to Janis Glover for over forty-two years. They have been blessed with two children, Tederal and Carissa, as well as six grandchildren. The Glovers make their home in Pittsburg.

Mayor Lamar Hernandez-Thorpe is a proud United States Navy veteran and a graduate of The George Washington University in Washington, DC. Lamar served for a total of eight years, having earned several medals, including the Global War on Terrorism Medal and the Global War on Terrorism Expeditionary Medal for his service in the Global War on Terror following the attacks of September 11, 2001.

After Lamar’s return stateside, he extended his term of service in the Navy and was stationed at the Naval Submarine Base in Groton, CT. During his second tour of duty, Lamar was accepted to The George Washington University (GWU), a school with a reputation for fostering social responsibility and public service. At George Washington, Lamar continued to serve in the military at the Washington Navy Yard. He chose to double major in Sociology and Women’s Studies. In 2006, Lamar was elected President of the George Washington University Student Body, representing more than 20,000 professional, law, medical, graduate, and undergraduate students from around the world.

In 2007, Lamar graduated and was selected from a large pool of highly accomplished graduating scholars as one of seven Presidential Administrative Fellows at George Washington. He concurrently worked towards his Master of Arts degree in Women’s Studies. As part of his fellowship, he was appointed to be at the forefront of university development, raising over a million dollars annually for GWU. Subsequently, he began his career as a higher education administrator. After several years in higher education, Lamar transitioned to a career in public health.

In 2020, Lamar Hernandez-Thorpe took the oath of office as the 41st Mayor of Antioch, beginning a four-year term. In this role, he assumes the highest position in the city’s government. According to the Municipal Code, the Mayor’s responsibilities include chairing all City Council meetings and carrying out additional duties assigned by either the City Council or the electorate. As the leader of the City Council, the Mayor is tasked with effectively conveying the majority opinion of the Council regarding policy matters. Furthermore, the Mayor serves as the city’s official representative for all ceremonial events.

Dionne Adams is the Director of Diversity, Equity, Inclusion and Belonging at Pacific Gas & Electric Company headquartered in Oakland, CA. She has been with PG&E for over 20 years and served in roles of increasing responsibilities within human resources, supply chain responsibility, regulatory affairs, and customer care line of business functions.

In her current role, Dionne provides strategic oversight of the company’s DEIB strategy focused on creating and sustaining a work environment where every member of their 25,000 person workforce feels known, loved and proud to work with and for PG&E.

In the community, she serves as an elected City Councilmember for her hometown of Pittsburg and as an Advisory Board Member of Tri-Delta Transit. In these roles Dionne works to drive equity and inclusion for members of the community in the areas of job creation, housing, public safety and accessibility.

Dionne is a California native and holds a Master of Public Administration from Golden Gate University and a Bachelor of Science of Business with an emphasis in Marketing from San Francisco State University.

Shanelle Scales-Preston was elected to the Pittsburg City Council in 2018 and served as Mayor 2023. Her priorities have been to strengthen youth programs and improve city services to create a strong and vibrant community.

Pittsburg is Shanelle’s home and has shaped who she is today. Her father owned a small business and was a member of UA 342 and her mother worked at the local glass factory. She understands the day-to-day struggles we all face. Shanelle’s strong ties to the community are built from her relationships with neighbors, her church and the organizations she volunteers for, including the Gateway Rotary Club and the Pittsburg Reads initiative.

Shanelle has extensive regional experience. She is Chair of the Board for MCE, the local electricity provider, is Chair of TransPlan which coordinates regional transportation projects and transit services in East County and is President of the League of California Cities East Bay Division.

Our community’s strength lies in its diversity and Shanelle has worked to ensure every voice is heard and valued. Her community service started in the federal government more than twenty years ago where she learned to effectively advocate for residents and local governments navigating difficult bureaucracies and fix problems. Shanelle has worked in communities across Contra Costa County her entire career and has built lasting relationships with residents here.

Shanelle earned her degree from California State University East Bay. She and her husband are raising their two sons in Pittsburg.

Past Meetings

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