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Soil shipping

Soil sample* preparation:

  1. air dry the samples in paper bags
  2. run each sample through a 2mm sieve to remove rocks, plant root fragments, etc
  3. ensure each sample bag is labeled with the date of collection, collector, site, block, and plot. then follow instructions below to ship to U of M.

* for sampling instructions see Core Sampling Methodology.

Soil shipping to the University of Minnesota:

Please follow these instructions exactly. Our permit is very specific about how soils should be shipped and handled.

  1. Must be shipped by a bonded carrier (i.e. UPS or FedEx) to exactly this address:
Dr. Sarah Hobbie
University of Minnesota - Twin Cities
140 Gortner Laboratory
1479 Gortner Avenue
Saint Paul, MN 55108


  1. Soil must be shipped in a "securely closed, watertight container (primary container) which should be enclosed in a second durable watertight container (secondary container)". Please pay close attention to these guidelines! Securely closed zip-top bags are acceptable watertight containers. Double-check that individual samples are completely labeled with site, block, plot, and date of collection.
  2. Attach a PPQ form 550 [email to request] to the *exterior* of each shipment box.
  3. Include a copy of the soil permit [email to request] *inside* each shipment box.
  4. The *outside* of the box should be labeled “contents: USDA regulated soil samples”
  5. If you have records for the shipment (weights, general composition), please include those as well.
  6. Upon shipment, please notify Anita Porath-Krause ( of the expected arrival date of the soils, as well as any other necessary information about the shipment.