Napa-Solano-Yolo-Marin County Public Health Laboratory
Notice: The laboratory will be closed on May 27 in observance of Memorial Day.

General Information
The Napa-Solano-Yolo-Marin County Public Health Laboratory exists as a regional laboratory to protect local communities against communicable diseases by providing diagnostic and reference laboratory services to healthcare professionals, clinics, hospitals, and law enforcement. Water testing and tick testing services are available to the public.

For information on testing services, click on the links below or on the left-hand panel.

Contact information
Napa-Solano-Yolo-Marin County Public Health Laboratory
2201 Courage Drive, MS 9-200
Fairfield, CA 94533
Hours: M–F 8 am–12 pm & 1 pm–5 pm
Phone: (707) 784-4410
Fax: (707) 423-1979

Map to Laboratory