Minnesota Valley Testing Laboratories (MVTL)

Testing Scope & Analytical Methods

Turnaround & Out-of-State Eligibility

• Expected Turnaround: 5-7 business days
• Out-of-State Consumers Accepted: Yes, accepts mail-in samples from any US state.
• Direct Contact: (507) 354-8517

Step-by-Step Sample Packaging Checklist

1. Intake Requirement: 1 cup soil in sealed container with chain of custody / submittal form
2. Use a clean stainless steel trowel to collect 5 to 10 sub-samples from your garden or play area at a depth of 2 to 6 inches.
3. Thoroughly mix sub-samples in a clean plastic container and allow to air-dry indoors on paper towels for 12–24 hours (do not bake or heat).
4. Place 1 cup of dry soil into a sturdy plastic zipper-seal freezer bag. Seal tightly and label clearly with your name and sample location.
5. Download the official submission slip using the link on the right, fill out the client questionnaire, enclose payment (or online order confirmation), and ship via USPS Ground Advantage ($4.50–$6.00).

Official Submission

Download the verified laboratory intake questionnaire, mailing address label, and fee instructions directly from the official laboratory portal.