About the County Administrative Office

The County Administrative Office is privileged to serve a dynamic organization of dedicated leaders and county staff under the policy direction of the Board of Supervisors. The Chief Executive Officer, along with the Executive Team, work in collaboration with County departments, cities and school leaders, state and federal legislators and agencies, and all community stakeholders to make the County a better place to live, work, and play. The Office makes it a priority to develop a culture of excellence within the County organization to ensure county residents and investors receive the highest level of service from their County Government.

Chief Executive Officer

Leonard X. Hernandez

Chief Executive Officer

Picture of Leonard X. Hernandez

Leonard X. Hernandez has been San Bernardino County’s Chief Executive Officer since 2020.

Mr. Hernandez oversees an organization consisting of 42 departments and agencies, more than 25,000 employees, and an annual budget of more than 7.4 billion dollars, serving nearly 2.2 million residents.

Under his leadership, County Government operations are aligned with a four-pillar organizational culture that emphasizes value, innovation, service, and vision in its mission to create a community where residents and investors can prosper and achieve well-being.

Mr. Hernandez began his career with San Bernardino County in 1998. Prior to his appointment as CEO, Mr. Hernandez served as County Chief Operating Officer and Deputy Executive Officer, overseeing the County Library, Registrar of Voters, the County Museum, County Regional Parks, County Airports, and Agriculture/Weights and Measures.

Mr. Hernandez is a resident of San Bernardino County and holds a Bachelor’s Degree in History from California State University Fullerton and a Masters of Library and Information Science from Clarion University of Pennsylvania. He is a credentialed California County Senior Executive.

Senior Executive Team

Luther Snoke

Chief Operating Officer

Picture of Luther Snoke

Luther Snoke has been San Bernardino County’s Chief Operating Officer since October 2020. 

As the County Chief Operating Officer, Mr. Snoke works closely with the Chief Executive Officer, as well as County executive leadership and Department Heads, to achieve the Countywide Vision and strive to provide the residents of San Bernardino County with the services they need. He was instrumental in the County’s multi-departmental response to the COVID-19 pandemic.

Mr. Snoke’s career with San Bernardino County began in 2013.  Prior to his appointment as County Chief Operating Officer, he served as a Deputy Executive Officer, Strategic Initiatives Chief, and Administrative Analyst III. In all roles, Mr. Snoke effectively managed department operations or coordinated with Department Heads to support daily operations. 

Prior to joining the County, Mr. Snoke worked in multiple corporate leadership roles, most recently as the Vice President of Finance for a publicly traded healthcare organization.  Mr. Snoke received his Business Administration degree from Cal State University, Fullerton, and is a CSAC Credentialed Senior Executive.

Diana Alexander

Assistant Executive Officer

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Diana Alexander has been San Bernardino County’s Assistant Executive Officer since 2020. 

Ms. Alexander is directly responsible for overseeing county department operations through the Community Services Group of six departments, the Health & Human Services group of 10 departments, and the Community Revitalization group of two departments. Ms. Alexander also oversees the equity work that the county committed to as part of the Board of Supervisor’s resolution declaring that racism is a public health crisis, and she leads the Countywide Vision Leadership team on behalf of the CEO.  Ms. Alexander partners with all county departments and multiple community stakeholders in providing extremely vital services to county residents while helping to achieve the countywide vision for all. 

Ms. Alexander began her career with San Bernardino County in 1993. Prior to her appointment as AEO Ms. Alexander served as the Deputy Executive Officer over the Community Services Group which consisted of the Departments of Agriculture Weights & Measures, Airports, Libraries, Museums, Regional Parks, and Registrar of Voters. Prior to that assignment Ms. Alexander served as the Director of the San Bernardino County Preschool Services Department; Assistant Director of the Transitional Assistance Department; and Chief Learning Officer over the County’s Performance, Education & Resource Centers.

Ms. Alexander is a resident of San Bernardino County and holds a Bachelor and Master’s degree in Public Administration, both from California State University San Bernardino.

Pamela Williams

Chief of Administration

Picture of  Pamela Williams

Pamela Williams joined San Bernardino County in 2015 at the Human Resources Department as a Human Resources Officer. Pamela led the Human Resources Team at the Department of Behavioral Health and Arrowhead Regional Medical Center. In 2018, she was promoted to Principal Administrative Analyst on the County Administrative Office- Special Projects team to oversee and manage priority projects with a countywide impact. In October 2020, Pamela was promoted to Chief of Administration with the County Administrative Office in direct support of the County’s Chief Executive Officer, Leonard X. Hernandez. Pamela provides oversight of the Board of Supervisors agenda item review and approval process. This includes looking at all proposed actions brought before the Board for approval through a Countywide lens to ensure that content is consistent with County policies and Board and CEO direction.

Diane Rundles

Human Resources Director

Picture of Diane Rundles

Diane Rundles has been the Human Resources Director for San Bernardino County since May of 2019. She oversees Human Resources, Risk Management, Labor Relations, and the Performance Education Resource Center (PERC). Diane has over 15 years of experience in Human Resources, and 23 years working in various government organizations. Diane possesses a master’s degree in Business Administration and has previously lectured as an adjunct professor at local universities. Her drive towards continuous improvement, nimble problem-solving skills, and her passion for making a difference makes her a very effective change agent and a valuable resource to the County.

Communications Team

Martha Guzman-Hurtado

Chief Communications Officer

Picture of Martha Guzman-Hurtado

Martha Guzman-Hurtado joined the San Bernardino County Administrative Office as Chief Communications Officer in September 2021. 

Her responsibilities include:

  • Overseeing the One County. One Voice centralized communications approach to enhance countywide departmental collaboration. 
  • Developing clear, engaging, and targeted communications and marketing strategies to continue to elevate the County’s messaging and brand.
  • Leading a team of communication professionals to execute long-term communications goals and priorities.
  • Working collaboratively with departments to ensure all communications are consistent with the San Bernardino County brand and align with strategic goals.

Martha’s previous roles include Communications and Legislative Affairs Manager for the City of El Segundo, Communications and Marketing Manager for the City of Fontana, Public Information Coordinator for the Fontana Police Department, and Public Information Coordinator for the City of Yuma, Arizona. Martha earned a Master of Business Administration from Walden University and also holds dual Bachelor of Arts degrees in Broadcast Journalism and Political Science from the University of Southern California in Los Angeles. She worked as a broadcast news reporter at television stations throughout the country including Fresno, California; Raleigh-Durham, North Carolina; and Las Vegas, Nevada before transitioning to the public sector.

David Wert

Public Information Officer

Picture of David Wert

David Wert has served as San Bernardino County’s Public Information Officer since November 1999. His responsibilities include:

  • Serving as a liaison between the County and the news media.
  • Advising County leadership in their communications with the public, County employees, and the news media.
  • Providing the public, County employees, and the news media with information about the County.
  • Working collaboratively with the County’s team of communications professionals to ensure the public is aware of the County’s services and accomplishments.

Before joining the County team, David was a reporter with the Riverside-based Press-Enterprise, where in 1997 he helped launch the newspaper’s San Bernardino County edition and covered San Bernardino County government and politics.

Prior to that, David was City Editor of the Ontario-based Inland Valley Daily Bulletin, supervising a staff of 25 reporters and determining the daily content of the newspaper. Previously, David served as a reporter covering county government and politics in San Bernardino and Los Angeles counties for the Inland Valley Daily Bulletin. David studied Journalism, Political Science, and English at California State University, Long Beach and El Camino Community College in Torrance from 1982 to 1987. He worked as a reporter for the Los Angeles Times and small newspapers in Seal Beach and Lompoc before coming to the Inland Empire in April 1989.

Executive Team

Matthew Erickson

Chief Financial Officer

Picture of Mathew Erickson

As the County Chief Financial Officer since June of 2018, Matthew is responsible for County finances and the development of the County Budget. He also oversees development of the five-year forecast and annual strategic plan; the administration and monitoring of the County general fund long-term debt portfolio, which includes both issuance and post-issuance activities; and oversight and administration of the County’s capital improvement program.

Daniel Munoz

Deputy Executive Officer

Picture of Daniel Munoz

Daniel oversees Inland Counties Emergency Medical Agency (ICEMA) and Office of Emergency Services (OES). ICEMA is the Local Emergency Medical Agency (LEMSA) designated by the State of California to organize and oversee the County’s entire local Emergency Medical Services (EMS) system. OES coordinates the County’s efforts to prepare for, mitigate against, respond to and recover from natural and human caused disasters in San Bernardino County in coordination with local, state, federal and tribal partners.

Valerie Clay

Deputy Executive Officer
Finance and Administration

Picture of Valerie Clay

Valerie is the Deputy Executive Officer responsible for the countywide administration of American Rescue Plan Act (ARPA) Funding. Additionally, Valerie helps oversee the financial operations for Agriculture/Weights and Measures (AWM), Airports, County Library, County Museum, County Trial Courts, Regional Parks, and Registrar of Voters (ROV).

Robert Saldana

Deputy Executive Officer
Finance and Administration

Picture of Robert Saldana

Robert is the Deputy Executive Officer primarily responsible for the administration and oversight of the countywide budget process.  Additionally, Robert helps oversee the financial operations of the Law and Justice group, including the Sheriff’s Department, Probation Department, Public Defender, and District Attorney.

Paloma Hernandez-Barker

Deputy Executive Officer
Finance and Administration

Picture of Paloma Hernandez-Barker

Paloma is the Deputy Executive Officer responsible for Countywide Fee and Rate Administration. Additionally, Paloma helps oversee the financial operations of the Assessor/Recorder/County Clerk (ASR), Auditor-Controller/Treasurer/Tax Collector (ATC), Board of Supervisors (BOS), Clerk of the Board (COB), Fleet Management, Human Resources, Information and Technology Department (ITD), Public Works, Purchasing, Risk Management, and Special Districts.

Diana Atkeson

Deputy Executive Officer
Finance and Administration

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Diana is the Deputy Executive Officer responsible for the administration of the Capital Improvement Program, the County’s Debt Program, Discretionary General Fund and Realignment Revenues. Additionally, Diana helps oversee the financial operations of the County Hospital (ARMC), Project and Facilities Management Department (PFMD), Real Estate Services Department (RESD), and County Fire District.

Cheryl Adams

Deputy Executive Officer
Health and Human Services Administration

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Director of all Human Services support divisions

Including the Administrative Support Division (ASD), Auditing Division, Information, Technology, and Support Division (ITSD), Personnel Division, Program Development Division (PDD), and Program Integrity Division (PID). In addition, DEO Cheryl Adams is also responsible for overseeing the financial budgets of each Human Services Department throughout the San Bernardino County.

Michael Jimenez

Deputy Executive Officer
Community Services

Picture of Mike Jimenez

Michael Jimenez currently serves as Deputy Executive Officer at the County Administrative Office of San Bernardino County. As DEO, Michael oversees the departments of Agriculture/Weights & Measures, Airports, Community Revitalization, Economic Development, Fleet, Library, Museums, Purchasing, Registrar of Voters, Regional Parks, and Workforce Development.

Chad Nottingham

Deputy Executive Officer
Implementation

Picture of Chad Nottingham

Chad Nottingham is a Deputy Executive Officer with the County Administrative Office.  Chad works closely with the County Chief Operating Officer, as well as County executive leadership and Department Heads to support the daily department operations of the Innovations and Technology Department, Projects and Facilities Management, Public Health Department, which includes Animal Control, and the Real Estate Services Department. 

Trevor Leja

Deputy Executive Officer
Implementations

Picture of Trevor Leja

Trevor Leja is a Deputy Executive Officer with the County Administrative Office.  Trevor works closely with the County Chief Operating Officer, other County executive leadership, along with Department Heads to support the daily department operations of the Land Use Services Department, which includes Code Enforcement and Building and Safety, as well as, Public Works Department, which includes Special Districts and Flood Control. 

Martha Zepeda

Deputy Executive Officer
Community Revitalization

Picture of Martha Zepeda

Martha Zepeda has been proudly serving county residents since 1992, most recently in the role of Deputy Executive Officer for Community Revitalization, overseeing the Community Development and Housing Department and the Office of Homeless Services, and working with various departments on activating the Homeless Strategic Action Plan.   

Brad Jensen

Director of Governmental and Legislative Affairs

Picture of Jenson Bradley

Brad Jensen oversees political advocacy for San Bernardino County. The Office of Legislative Affairs actively tracks state and federal legislation and builds positive working relationships with legislative representatives. It also prepares the annual Legislative Platform that outlines the Board of Supervisor’s key legislative goals, funding priorities, and longstanding policy positions.