Control Laboratories

4.6
13 reviews
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About

LaboratoryAgriculture & FarmingAgricultural ServiceSoil Testing Service
Control Laboratory, located in the heartland of California agricultural community, has 7 decades of experience in analyzing & solving a wide spectrum of complex soil, soil-related, compost, & water-borne or effluent problems. Equipped with the finest state-of-the-art instrumentation & lab facilities, we provide analytical services across the nation. Control Laboratory, & its partner companies keep abreast of new methods, & obtain the latest instrumentation. Including the most precise results possible in line with accepted industry procedures compliant with the official directives & applicable protocols of the EPA, U.S. Composting Council, Department of Health Services, USDA, AOAC, American Society of Agronomy & the Soil Sciences of America

Location

Control Laboratories
42 Hangar Way, Watsonville, CA
95076, United States

Hours

Reviews

4.6
13 reviews
5 stars
11
4 stars
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1 star
1
  • AJ
    Ariel June
    Nov 6, 2025
    5.0
    Good service and helpful lab reports, and they referred me to some water sample collection technicians and water well companies that were super helpful.
  • TH
    Thomas Hyatt
    Aug 9, 2025
    1.0
    My company has been a customer of this lab for a very long time but not anymore. Their compost analyst Assad or Assaf has been dishonest many times and doesn’t bother to tell us our samples were arriving cross contaminated in transit until we find out indirectly months later. Looking at the other compost they analyze and certify, it’s all full of micro trash (glass, paper, plastic, strings) despite their lab reports claiming that the compost is passing and free of contamination. I don’t think so.

Frequently Asked Questions About Control Laboratories

What services does Control Laboratories offer?

Control Laboratories provides analytical chemistry and bacteriology, water testing, compost and soil testing, biodegradable plastics testing, agricultural consulting, farming services, and research and development laboratories among others.

Where is Control Laboratories located?

Control Laboratories is located at 42 Hangar Way, Watsonville, CA 95076, USA.