Merced County Cooperative Extension

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 

NameAddressPhone # and Hours¿Quién habla español? Cost for full soil analysis*Notes on Sample
Precision Agri-Lab24730 Avenue 13, Madera, CA 93637 

(559) 661-6386

M-F 8am-5pm 

Veronica Surrency   $65Can drop off sample anytime during business hours, need about 2 lbs of soil (about ½ a gallon zip plastic bag) 
Dellavalle Laboratory, Inc1910 W. McKinley Ave, Suite 110, 
Fresno, CA 93728

(559) 233-6129

M-F 8am-5pm

Zimri $52-$88Same as above
Denele Analytical Inc1232 South Ave
Turlock, CA 95380

(209)634-9055

M-F 7:30am-5pm

--------------   $54.80Same 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 Labs1311 Woodland Ave, Suite 1
Modesto, CA 95351

(209) 529-4080

M-F 8am-5pm

---------------       $35.00Drop off during business hours, about ½ a gallon zip plastic bag.
JM Lord, Inc4184 N. Knoll Dr. Fresno CA 93722

(559) 268-9755

M-F 7am- 5pm 

Diana Rodriguez o Alex Aguilar $45.00Same as above
VPN Laboratory3402 W. Holland Ave. #101 Fresno CA. 93722 

(559) 276-0403

M-Th 8am-4pm

F 8am-3pm (call before)

-------------  $50Same as above.
D & D Agricultural Laboratory, Inc5750 East Shields Avenue # 104 
Fresno, CA 93727
(559) 348-1818   
California Growers Laboratory4630 W. Jennifer, Suite 104, Fresno, CA 93722 

(559) 275- 3377

M-F 8am-3pm

------------- $75.00Same 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.