Agricultural Soil Testing Laboratories in California

Accredited agricultural soil testing facilities serving California commercial agriculture, row crops, and horticulture.

Laboratories Located in California (1)

NAPT-PAP Certified / CDFA Certified Commercial Laboratory
Dellavalle Laboratory, Inc.
📍 Fresno, CA

Premier Central Valley facility tailored for high-value California specialty crops, almond orchards, wine grapes, and saline/alkali soils.

  • Turnaround: 3–5 business days
  • Pricing: $35–$65 for specialty crop fertility and complete salinity hazard diagnostics.