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AgSource - Marshfield, Wis.

If Learn more about getting high-quality food, water, environmental, or milk testing services in Marshfield, Wisconsin need high-quality food, water, environmental, or milk testing services in Wisconsin, it's only natural that you want the absolute best. With over 50 years of experience under our belt, we are your go-to testing service for edible, perishable, and time-sensitive products. We understand how to process these delicate materials and deliver accurate results. Developing personal relationships with our customers is important to us.


Choose our Marshfield, laboratory for food, water, environmental or milk testing services.


At our Marshfield laboratory, you’ll benefit from our:

  • Superior customer service
  • Timely turnaround
  • Convenient sample pick-up routes 
  • Multiple report options available - including Excel, PDF, and other electronic formats


Our Marshfield facility participates in several check sample programs, practices Association of Analytical Communities (AOAC) approved methods and currently holds a number of certifications, including the following:

  • Environmental Protection Agency (EPA)
  • ISO / IEC 17025 Accreditation
  • Interstate Milk Shippers Protocols (IMS)
  • Wisconsin Department of Agriculture, Trade, and Consumer Protection (WDATCP)
  • Wisconsin Department of Natural Resources (WDNR)

Contact Information

If you're looking for quality food, water, environmental, or milk testing services, contact our Marshfield professionals today!