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Lab Services


Public Health Laboratory

Public Health Laboratory serves as a first line of defense to protect the public against communicable diseases and other health hazards. We provide clinical diagnostic testing, environmental testing, emergency response support, applied research, laboratory training and other essential services to the community in a respectful, timely and cost effective manner.

The San Mateo County Public Health Laboratory does not offer identification or testing of ticks for Lyme disease.

For Lyme disease testing, please contact the County of Santa Clara Public Health Laboratory at 408-885-4272 or visit their website for more information.

For tick identification, please contact the San Mateo County Mosquito and Vector Control District at 650-344-8592 or visit their website for more information.


General information

Walk-in Services

Rabies Testing

Public Health Laboratory is providing rabies testing and work closely with Animal Control Division as well as Peninsula Humane Society (SPCA). Please download and complete the Animal Bite Report Form.

Water Testing

Membrane filtration for detection of coliforms in drinking water, testing for various indicator bacteria in soil and surface water samples, Coliform Presence/Absence Test, Nitrates & Nitrites. Please download and complete the Environmental Water Test Request Form 2020