Home › Minnesota
Certified Water Testing Labs in Minnesota
25 labs accredited by the Minnesota Department of Health (MDH) that accept drinking-water samples from private well owners, with the tests each one covers: coliform bacteria, nitrate, arsenic, lead and manganese. Labs are sorted by city.
Steven M. Traut Wells, Inc.
Drinking-water tests for private wells (4)
BacteriaNitrate- Total coliform bacteria
- Nitrate (as N)
- Arsenic (lab sends the sample to another accredited lab)
- Lead (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Tri-City/William Lloyd Analytical Lab
Drinking-water tests for private wells (4)
BacteriaNitrateArsenicManganese- Total coliform bacteria
- Nitrate (as N)
- Arsenic
- Manganese
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
A.W. Research Laboratories, Inc.
Drinking-water tests for private wells (5)
BacteriaNitrateArsenicLeadManganese- Total coliform bacteria
- Nitrate (as N)
- Arsenic
- Lead
- Manganese
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
RMB Environmental Laboratories, Inc. - Burnsville
Drinking-water tests for private wells (5)
BacteriaNitrate- Total coliform bacteria
- Nitrate (as N)
- Arsenic (lab sends the sample to another accredited lab)
- Lead (lab sends the sample to another accredited lab)
- Manganese (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
RMB Environmental Laboratories, Inc. - Detroit Lakes
Drinking-water tests for private wells (5)
BacteriaNitrateArsenicLeadManganese- Total coliform bacteria
- Nitrate (as N)
- Arsenic
- Lead
- Manganese
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Pace Analytical Services, LLC - Duluth
Drinking-water tests for private wells (5)
BacteriaNitrate- Total coliform bacteria
- Nitrate (as N)
- Arsenic (lab sends the sample to another accredited lab)
- Lead (lab sends the sample to another accredited lab)
- Manganese (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Water Laboratories, Inc.
Drinking-water tests for private wells (4)
BacteriaNitrateArsenicLead- Total coliform bacteria
- Nitrate (as N)
- Arsenic
- Lead
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Instrumental Research, Inc.
Drinking-water tests for private wells (4)
BacteriaNitrate- Total coliform bacteria
- Nitrate (as N)
- Arsenic (lab sends the sample to another accredited lab)
- Lead (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Twin City Water Clinic, Inc.
Drinking-water tests for private wells (5)
BacteriaNitrateArsenicLead- Total coliform bacteria
- Nitrate (as N)
- Arsenic
- Lead
- Manganese (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Koochiching Health Department Water Testing
Drinking-water tests for private wells (1)
Bacteria- Total coliform bacteria
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
UC Laboratory
Drinking-water tests for private wells (5)
BacteriaNitrateManganese- Total coliform bacteria
- Nitrate (as N)
- Manganese
- Arsenic (lab sends the sample to another accredited lab)
- Lead (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Southwest Health and Human Services
Drinking-water tests for private wells (2)
BacteriaNitrate- Total coliform bacteria
- Nitrate (as N)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Pace Analytical Services, LLC - Minneapolis
Drinking-water tests for private wells (5)
BacteriaNitrateArsenicLeadManganese- Total coliform bacteria
- Nitrate (as N)
- Arsenic
- Lead
- Manganese
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Engel Water Testing, Inc.
Drinking-water tests for private wells (4)
Bacteria- Total coliform bacteria
- Nitrate (as N) (lab sends the sample to another accredited lab)
- Arsenic (lab sends the sample to another accredited lab)
- Lead (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
EMSL Analytical, Inc.
Drinking-water tests for private wells (5)
BacteriaNitrateArsenicLeadManganese- Total coliform bacteria
- Nitrate (as N)
- Arsenic
- Lead
- Manganese
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Minnesota Valley Testing Laboratories, Inc.
Drinking-water tests for private wells (5)
BacteriaNitrateArsenicLeadManganese- Total coliform bacteria
- Nitrate (as N)
- Arsenic
- Lead
- Manganese
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
RMB Environmental Laboratories, Inc. - Pequot Lakes
Drinking-water tests for private wells (5)
Bacteria- Total coliform bacteria
- Nitrate (as N) (lab sends the sample to another accredited lab)
- Arsenic (lab sends the sample to another accredited lab)
- Lead (lab sends the sample to another accredited lab)
- Manganese (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Fillmore SWCD Water Quality Laboratory
Drinking-water tests for private wells (1)
Bacteria- Total coliform bacteria
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
AC Analytical & Consulting, LLC
Drinking-water tests for private wells (4)
BacteriaNitrate- Total coliform bacteria
- Nitrate (as N)
- Arsenic (lab sends the sample to another accredited lab)
- Lead (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Red Wing City Laboratory
Drinking-water tests for private wells (1)
Bacteria- Total coliform bacteria
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Southeastern Minnesota Water Analysis Laboratory
Drinking-water tests for private wells (5)
BacteriaNitrate- Total coliform bacteria
- Nitrate (as N)
- Arsenic (lab sends the sample to another accredited lab)
- Lead (lab sends the sample to another accredited lab)
- Manganese (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Traut Water Analysis Lab
Drinking-water tests for private wells (4)
BacteriaNitrate- Total coliform bacteria
- Nitrate (as N)
- Arsenic (lab sends the sample to another accredited lab)
- Lead (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Pace Analytical Services, LLC - Virginia
Drinking-water tests for private wells (5)
Bacteria- Total coliform bacteria
- Nitrate (as N) (lab sends the sample to another accredited lab)
- Arsenic (lab sends the sample to another accredited lab)
- Lead (lab sends the sample to another accredited lab)
- Manganese (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
RMB Environmental Laboratories, Inc. - Virginia
Drinking-water tests for private wells (5)
BacteriaNitrate- Total coliform bacteria
- Nitrate (as N)
- Arsenic (lab sends the sample to another accredited lab)
- Lead (lab sends the sample to another accredited lab)
- Manganese (lab sends the sample to another accredited lab)
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Worthington Public Utilities Laboratory
Drinking-water tests for private wells (1)
Bacteria- Total coliform bacteria
From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.
Source: MDH, Accredited Labs in Minnesota Accepting Drinking Water Samples from Private Well Users (October 2026), checked 2026-11-03. Need a different test? Use the MDH accredited lab search. Questions about a lab's accreditation: MNELAP, 651-201-5324.