Hero Image

Soil Testing Laboratories in Fresno, Madera, Merced, and Stanislaus Counties

Note: The laboratories in this listing are for informational purposes only and do not constitute any endorsement or recommendation by UC Cooperative Extension. If you are a laboratory that would like to be added/updated, please email cmbergren@ucanr.edu 

Last updated: 7/16/2019 

Name Address Phone # and Hours ¿Quién habla español?  Cost for full soil analysis* Notes on Sample
Precision Agri-Lab  24730 Avenue 13, Madera, CA 93637 

(559) 661-6386

M-F 8am-5pm 

Veronica Surrency    $65 Can drop off sample anytime during business hours, need about 2 lbs of soil (about ½ a gallon zip plastic bag) 
Dellavalle Laboratory, Inc  1910 W. McKinley Ave, Suite 110, 
Fresno, CA 93728

(559) 233-6129 

M-F 8am-5pm

Zimri  $52-$88 Same as above
Denele Analytical Inc  1232 South Ave 
Turlock, CA 95380


M-F 7:30am-5pm 

--------------    $54.80 Same as above; once you establish an account with them, you can use a drop box location nearest to you, see locations at: https://denelelabs.com/drop-box-locations/ 
A&L Western Labs  1311 Woodland Ave, Suite 1 
Modesto, CA 95351 

(209) 529-4080 

M-F 8am-5pm 

---------------        $35.00 Drop off during business hours, about ½ a gallon zip plastic bag. 
JM Lord, Inc  4184 N. Knoll Dr. Fresno CA 93722

(559) 268-9755 

M-F 7am- 5pm 

Diana Rodriguez o Alex Aguilar   $45.00 Same as above
VPN Laboratory

3402 W. Holland Ave. #101 Fresno CA. 93722 

(559) 276-0403 

M-Th 8am-4pm 

F 8am-3pm (call before)

-------------   $50 Same as above.
D & D Agricultural Laboratory, Inc

5750 East Shields Avenue # 104 
Fresno, CA 93727

(559) 348-1818       
California Growers Laboratory

4630 W. Jennifer, Suite 104, Fresno, CA 93722 

(559) 275- 3377

M-F 8am-3pm

-------------  $75.00 Same as above.

*Each lab has slightly different recommendations for their ‘complete analysis’ option. Please check their website for exact testing performed, and to see different package options. Remember, if you are applying for or have received a Healthy Soils grant, your test needs to include soil organic matter.