County of Marin Health and Human Services

Public Health Laboratory Services

As of July 1, 2013, testing of public health laboratory specimens has moved to the Napa/Solano/Yolo/Marin Public Health Laboratory (NSYMPHL).

New Specimen Drop-Off Location and Hours in Marin
Specimens can be dropped off at 3260 Kerner Boulevard, San Rafael, CA, 94901. This is the location of the Health and Human Services Clinics where staff at the reception desk will be available to take your specimens. The hours for drop off are Monday through Friday 8:30 AM to 12:00 PM and 1:00 to 4:30 PM. The reception desk is closed from noon to 1:00 PM. If you have any questions about the drop-off location or hours, please call 415-473-4400.

Tick Testing

Ticks should be kept intact and moist. A tick cannot be tested that is dried out or missing critical body parts. The downloadable Tick Identification Form can be filled out and brought to the new drop-off location at 3260 Kerner Blvd, San Rafael, CA. The fee for tick testing is $34 effective March 1, 2017.

Rabies Testing

The Marin Humane Society Animal Services Department handles all calls involving sick, injured, dead or rabies-suspect wildlife. Please call (415) 883-4621 to report wildlife in distress. If you have had contact with an animal known or suspected to have rabies, please call (415) 473-4163

Well Water Testing

The laboratory can test domestic well water for potability. Please call (415) 473-4400 to obtain a testing kit. The fee for well water testing is $28 effective March 1, 2017.

Other Tests

The Napa/Solano/Yolo/Marin Public Health Laboratory (NSYMPHL) offers an extensive array of clinical and biological tests related to communicable diseases. For information about specific tests, please call the laboratory at (707) 784-4410.