Certified labs near Preston, Minnesota

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Labs on Minnesota’s official list

• Fillmore SWCD Water Quality Laboratory, Preston · ~4 miListed in Minnesota Department of Health’s certified lab list. See the official list → (checked 2026-10-16)
• Southeastern Minnesota Water Analysis Laboratory, Rochester · ~25 miListed in Minnesota Department of Health’s certified lab list. See the official list → (checked 2026-10-16)
• Red Wing City Laboratory, Red Wing · ~62 miListed in Minnesota Department of Health’s certified lab list. See the official list → (checked 2026-10-16)
• UC Laboratory, Janesville · ~86 miListed in Minnesota Department of Health’s certified lab list. See the official list → (checked 2026-10-16)
• RMB Environmental Laboratories, Inc. - Burnsville, Burnsville · ~96 miListed in Minnesota Department of Health’s certified lab list. See the official list → (checked 2026-10-16)
• Tri-City/William Lloyd Analytical Lab, Bloomington · ~101 miListed in Minnesota Department of Health’s certified lab list. See the official list → (checked 2026-10-16)
• Pace Analytical Services, LLC - Minneapolis, Minneapolis · ~106 miListed in Minnesota Department of Health’s certified lab list. See the official list → (checked 2026-10-16)
• Twin City Water Clinic, Inc., Hopkins · ~108 miListed in Minnesota Department of Health’s certified lab list. See the official list → (checked 2026-10-16)

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Many labs accept mailed samples, so a lab a few hours away may still work for you.