Public Health Regional Laboratory
Our team of health professionals provides specimen testing services to the counties of Sonoma, Mendocino, Lake and Humboldt in Northern California.
Led by Rachel Rees DrPH, PHM, PHLD (ABB), Director of Laboratory Services, the laboratory provides training and reference testing to clinical laboratories, and laboratory support for diagnosis and control of communicable diseases to private medical providers.
Novel Coronavirus Information
Featured Tests for Consumers
Tick Test

Tick Test
Test for lyme organism in ticks. Includes specimen storage and transport instructions.
Water Test

Water Test
Test for the detection and confirmation of total coliforms and E. coli in well water.
Contact Information
Public Health Regional Laboratory
Fees for Testing Services