Public Health Laboratory

San Joaquin County Public Health Services (PHS) is proud to announce the 100 year anniversary of our laboratory.

Learn more About the Public Health Laboratory > 

Test tubes in a stand in a lab

Mission Statement

The mission of the public health laboratory is to provide public health laboratory services in a cost efficient and quality assured manner. More specifically, the following enhances the statement:

  1. Provide services to aid in the prevention, control and diagnosis of all illnesses of public concern.
  2. Assist in epidemiological investigations.
  3. Assist in the monitoring and control of health and safety conditions associated with the environment
  4. Assist in the research and evaluation of the health problems of the community.
  5. Provide laboratory services for the specialized health department programs..
  6. Provide information and consultation to the private laboratories and the medical and public health community in the field of laboratory science.
  7. Provide laboratory services not otherwise available.

The San Joaquin County Public Health Laboratory is comprised of 5 major sections:

  • Virology/Serology
  • Bacteriology
  • Molecular Biology
  • Mycobacteriology/Mycology
  • Parasitology

The San Joaquin County Public Health Laboratory is supported by:

  • Office/Administration
  • Laboratory Support Staff

Approval and Certification

  • Approved as a Public Health Laboratory by the State of California
  • Certified by Medicare, Medi-Cal
  • Certified by the EPA
  • Laboratory Response Network (LRN) Reference Laboratory

The public health laboratory is staffed by the following positions:

  • Laboratory Director
  • Supervising Microbiologist
  • Senior Microbiologists

Laboratory Support Staff

  • Laboratory Technicians
  • Laboratory Assistant
  • Laboratory Courier
  • Laboratory Water Sampler

Laboratory Clerical Staff/Administration

  • Office Supervisor
  • Senior Office Assistants

Hours of Operation

Hours: Monday - Friday, 8:00 am - 5:00 pm
Phone: (209) 468-3460 (Main Laboratory)
Fax: (209) 468-0639

2025 Holiday Schedule (PDF)

2024 Holiday Schedule (PDF)

Laboratory Email contact for correspondence during phone line issues or urgency : 

phslabmgrs@sjcphs.org


After Hours Emergency Phone: (209) 468-6000