Introduction
The following information is for home gardeners who are interested in testing their soil and water.
- Contact the lab to confirm offered services, pricing, and preferred procedure for sample collection.
- Testing labs vary in the types of available tests and recommendations they provide. Be sure to ask for
detailed information regarding tests, test fees, and interpretation, and whether recommendations are
included. Many of the websites provide supplemental information about tests and sampling. - Resources regarding soils and soil testing:
List of Laboratories
The following table lists laboratories and the types of tests they perform.
| Laboratory Name and Contact Information | Test performed by the laboratories |
|---|---|
| Alluvial Soil Lab CA Website: https://alluvialsoillab.com/ Phone: (831) 216-1367 | Test descriptions and fees available online.
|
| Dellavalle Laboratory Inc. 1910 w. McKinley Avenue Fresno, Ca 93728 Website: http://www.dellavallelab.com Phone: (800) 228-9896 Note: Testing for heavy metals is available at an additional cost | Test descriptions and fees available online.
|
| Peaceful Valley Farm & Garden Supply Professional Soil Testing 125 Clydesdale Court Grass Valley, CA 95945 Website: https://www.groworganic.com/ Phone: (888)784-1722 | Test descriptions and fees available online.
|
| Perry Laboratory 424 Airport Boulevard Watsonville, CA 95076 Website: http://perrylaboratory.com Phone: (831) 722-7606 | Test descriptions and fees available online.
|
| Waypoint Analytical California, Inc. Central CA Office 1101 S. Winchester Blvd., Suite G-173 San Jose, CA 95128 Website: www.waypointanalytical.com Phone: 408.727.0330 Fax: 408.727.5125 | Test descriptions and fees available online.
|
Note:
- The list is neither comprehensive nor all-inclusive. No endorsement of any specific business is
intended; neither is any criticism implied of similar labs not listed here. - The listed labs may or may not provide testing services for contaminants.
UC Master Gardener Program of Contra Costa County
2380 Bisso Lane, Concord, CA 94520
Website: https://ucanr.edu/site/uc-master-gardener-program-contra-costa-county