The Massachusetts chapter of the Northeast Organic Farming Association. NOFA/Mass welcomes everyone who cares about food, where it comes from and how it’s grown

Growing Organically Since 1982

Applying for Soil Carbon “Proxy” Tests on Your Site?

Carbon TestingThanks for your interest in our soil carbon “proxy” testing. The tests are designed to be run on the same site over time. This is because soils are complex and different ones are not easy to compare. But variations in the same soil are much easier to track, especially when you know about recent management practices.

The tests will measure the levels of biodiversity and other aspects of soil health that are attributable to building soil carbon. These will help you determine if your growing practices are successful.

Thus if you are interested in having a technician come to your location and run these tests, we ask you to fill out a location form describing the overall location (farm, garden, etc.) and a site form for each site you want tested (maximum 2 per visit right now). Once we get those, and your fee ($50 for one site, $75 for two sites) we will contact you to set up a visit.

After the visit, we will send you the results of the tests and our analysis of what they mean in terms of your soil carbon building practices. The more information you can give us on the forms about your practices, the more helpful we can be.

Make your check out to NOFA/Mass and mail it with the application forms to: NOFA/Mass Carbon Proxy Testing, 411 Sheldon Rd., Barre, MA 01005. We will contact you within a few days of receiving it.


  1. Download and fill out the "Land Manager Information on Farm or Location Form"
  2. For each site you want tested, fill out a "Land Manager Description of Testing Site Form"
  3. Make out a check to "NOFA/Mass" for $50 for one site, or $75 for two sites
  4. Send them all to NOFA/Mass Carbon Proxy Testing, 411 Sheldon Rd., Barre, MA 01005
  5. Wait for us to contact you.


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