Pace Analytical Services, LLC - Duluth
4730 Oneota Street
Duluth, MN 55807
- Total coliform bacteria
- Nitrate
- Arsenic (subcontracted)
- Lead (subcontracted)
- Manganese (subcontracted)
Well water testing in St. Louis County, Minnesota
Labs copied from the official Minnesota certified lab list (last verified 2026-10-26). All Minnesota labs
The official Minnesota list shows 3 certified labs in St. Louis County. Call before you sample to confirm the lab accepts private well water and to ask about bottles, prices and drop-off times.
Certified labs in St. Louis County
RMB Environmental Laboratories, Inc. - Virginia
110 1/2 South 15th Avenue W
Virginia, MN 55792
- Total coliform bacteria
- Nitrate
- Arsenic (subcontracted)
- Lead (subcontracted)
- Manganese (subcontracted)
Pace Analytical Services, LLC - Virginia
315 Chestnut Street
Virginia, MN 55792
- Total coliform bacteria
- Nitrate (subcontracted)
- Arsenic (subcontracted)
- Lead (subcontracted)
- Manganese (subcontracted)
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What to test for
- MDH says you are responsible for regularly testing your well water, and recommends using an accredited laboratory. Contact a lab for sample containers and instructions, or ask your county environmental or public health services whether they offer well testing. Source
- For a new well, MDH says the licensed well contractor collects an initial sample to test for coliform bacteria, nitrate, and arsenic before you use the water for drinking or cooking. Source
After a flood in St. Louis County
EPA says to test a private well for bacteria after flooding before drinking the water again. Check current flood alerts and Flood Watch, and read flood season testing. EPA: your well after a flood
Local help
Your St. Louis County or local health department can tell you about local well testing, including any free or low-cost programs. State contact: MDH Well Management Section.
Questions
Where can I test well water in St. Louis County, MN?
The official Minnesota certified lab list shows 3 labs in St. Louis County; they are listed on this page with phone numbers. Call first to confirm they accept private well samples.
How often should I test my well?
EPA recommends testing every year for total coliform bacteria, nitrates, total dissolved solids and pH, and testing right away after flooding, well repairs, or a change in taste, color or smell.
Other Minnesota counties
Anoka County · Becker County · Beltrami County · Brown County · Crow Wing County · Douglas County · Fillmore County · Goodhue County · Hennepin County · Koochiching County · Lyon County · Nobles County · Olmsted County · Sherburne County · Stearns County · Waseca County