ResourceContact Info
Caltest Analytical Lab

A commercial full-service environmental testing laboratory, established in 1974, specializing in analysis of groundwater, drinking water, and hazardous…

www.caltestlabs.com/
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…

www.cercoanalytical.com/index.html
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…

www.californialab.com/
800 638-7301
3249 Fitzgerald Road
Rancho Cordova, CA 95742
Contra Costa Master Gardeners — Soil Testing Labs

List of Soil Testing Labs for Home Gardeners, on the Contra Costa Master Gardeners website.…

ccmg.ucdavis.edu/files/51308.pdf
Control Laboratories, Inc.

Provides testing and analysis of soil, compost, water, plants, and organic fuel. Control Laboratory, located in the heartland…

www.compostlab.com/
831 724-5422
42 Hangar Way
Watsonville, CA 95076