Napa-Solano-Yolo-Marin County Public Health Laboratory

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.

Notice: The laboratory will be closed on December 25, 2018 and January 1, 2019 in observance of Christmas and New Year's Day.

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

Christmas tree on an EMB plate: Colored with an Escherichia coli tree, an Enterobacter aerogenes star, Enterobacter cloacae ornaments, and a Klebsiella pneumoniae tree stump.