ResourceContact Info
Bolsa Analytical Lab
A water, soil and food testing lab. Samples can be either brought in or collected by the lab.…
831 637-4590
2337 Technology Parkway, Suite K
Hollister, CA 95023
Caltest Analytical Lab
A commercial full-service environmental testing laboratory, established in 1974, specializing in analysis of groundwater, drinking water, and hazardous…
888 258-8378
1885 North Kelly Road
Napa, CA 94558
CERCO Analytical Labs
The CERCO Analytical Labs provides analytical services in the fields of wet chemistry, inorganic chemistry, and bacteriology for…
925 462-2771
1100 Willow Pass Court
Concord, CA 94520-1006
CLS Labs
A full service environmental chemistry laboratory with modern facilities and equipment. CLS provides a wide range of environmental…
800 638-7301
3249 Fitzgerald Road
Rancho Cordova, CA 95742
Contra Costa Master Gardeners — Soil Testing Labs
PDF List of Soil Testing Labs for Home Gardeners, to download from the Contra Costa Master Gardeners website.…