Minnesota labs that accept private well samples
Transcribed from the Minnesota Department of Health PDF Accredited Labs in Minnesota Accepting Drinking Water Samples from Private Well Users, dated July 2026. MDH built this list for private well owners. We did not add laboratories from other directories.
How to read the table
- Yes
- MDH marked the lab for that analyte.
- Yes*
- Sample is subcontracted to a laboratory accredited for that analyte.
- —
- That column was blank on the MDH table.
- Mail / drop-off
- Unknown. MDH’s drop-off star icon did not extract from the PDF. Call the lab. Ask for bottles and hold times before you sample.
For other contaminants, MDH: search Accredited Laboratories → Customized Searches → Program: Safe Drinking Water Program → analyte → check “Accepts samples from private homeowners.”
| Map | Laboratory | City | County | Address | Phone | Coliform | Nitrate | Arsenic | Lead | Manganese | Mail / drop-off |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Fillmore SWCD Water Quality Laboratory | Preston | Fillmore | 900 Washington Street NW, Preston, MN 55965 | 507-765-3878 | Yes | — | — | — | — | unknown |
| 2 | Southeastern Minnesota Water Analysis Laboratory | Rochester | Olmsted | 2100 Campus Drive SE, Suite 100, Rochester, MN 55904 | 507-328-7495 | Yes | Yes | Yes* | Yes* | Yes* | unknown |
| 3 | UC Laboratory | Janesville | Waseca | 129 North Main Street, Janesville, MN 56048 | 507-234-5835 | Yes | Yes | Yes* | Yes* | Yes | unknown |
| 4 | Worthington Public Utilities Laboratory | Worthington | Nobles | 1950 27th Street N, Worthington, MN 56187 | 507-372-8660 | Yes | — | — | — | — | unknown |
| 5 | Southwest Health and Human Services | Marshall | Lyon | 607 West Main Street, Suite 200, Marshall, MN 56258 | 507-537-6713 | Yes | Yes | — | — | — | unknown |
| 6 | Minnesota Valley Testing Laboratories, Inc. | New Ulm | Brown | 1126 North Front Street, New Ulm, MN 56073 | 507-354-8517 | Yes | Yes | Yes | Yes | Yes | unknown |
| 7 | Red Wing City Laboratory | Red Wing | Goodhue | 1020 East Fifth Street, Red Wing, MN 55066 | 651-385-5143 | Yes | — | — | — | — | unknown |
| 8 | RMB Environmental Laboratories, Inc. - Burnsville | Burnsville | Hennepin | 501 Highway 13 E, Suite 104, Burnsville, MN 55337 | 952-456-8470 | Yes | Yes | Yes* | Yes* | Yes* | unknown |
| 9 | Tri-City/William Lloyd Analytical Lab | Bloomington | Hennepin | 9300 Poplar Bridge Road, Bloomington, MN 55437 | 952-563-4904 | Yes | Yes | Yes | — | Yes | unknown |
| 10 | Twin City Water Clinic, Inc. | Hopkins | Hennepin | 617 13th Avenue S, Hopkins, MN 55343 | 952-935-3556 | Yes | Yes | Yes | Yes | Yes* | unknown |
| 11 | Engel Water Testing, Inc. | Minnetrista | Hennepin | 9300 County Road 15, Minnetrista, MN 55359 | 952-955-1800 | Yes | Yes* | Yes* | Yes* | — | unknown |
| 12 | Pace Analytical Services, LLC - Minneapolis | Minneapolis | Hennepin | 1700 Elm Street SE, Suite 200, Minneapolis, MN 55414 | 612-607-1700 | Yes | Yes | Yes | Yes | Yes | unknown |
| 13 | EMSL Analytical, Inc. | New Hope | Hennepin | 3410 Winnetka Avenue N, New Hope, MN 55427 | 763-449-4922 | Yes | Yes | Yes | Yes | Yes | unknown |
| 14 | Instrumental Research, Inc. | Fridley | Anoka | 7800 Main Street NE, Fridley, MN 55432 | 763-571-3698 | Yes | Yes | Yes* | Yes* | — | unknown |
| 15 | Water Laboratories, Inc. | Elk River | Sherburne | 333 Main Street NW, Elk River, MN 55330 | 763-441-7509 | Yes | Yes | Yes | Yes | — | unknown |
| 16 | Traut Water Analysis Lab | St. Joseph | Stearns | 32640 County Road 133, St. Joseph, MN 56374 | 320-251-5090 | Yes | Yes | Yes* | Yes* | — | unknown |
| 17 | Steven M. Traut Wells, Inc. | Alexandria | Douglas | 754 Cross Country Lane SW, Alexandria, MN 56308 | 320-762-1528 | Yes | Yes | Yes* | Yes* | — | unknown |
| 18 | A.W. Research Laboratories, Inc. | Brainerd | Crow Wing | 314 Charles Street, Brainerd, MN 56401 | 218-829-7974 | Yes | Yes | Yes | Yes | Yes | unknown |
| 19 | RMB Environmental Laboratories, Inc. – Detroit Lakes | Detroit Lakes | Becker | 22796 County Highway 6, Detroit Lakes, MN 56501 | 218-846-1465 | Yes | Yes | Yes | Yes | Yes | unknown |
| 20 | Pace Analytical Services, LLC - Duluth | Duluth | St. Louis | 4730 Oneota Street, Duluth, MN 55807 | 218-727-6380 | Yes | Yes | Yes* | Yes* | Yes* | unknown |
| 21 | RMB Environmental Laboratories, Inc. - Virginia | Virginia | St. Louis | 110 ½ South 15th Avenue W, Virginia, MN 55792 | 218-440-2043 | Yes | Yes | Yes* | Yes* | Yes* | unknown |
| 22 | Pace Analytical Services, LLC - Virginia | Virginia | St. Louis | 315 Chestnut Street, Virginia, MN 55792 | 218-727-6380 | Yes | Yes* | Yes* | Yes* | Yes* | unknown |
| 23 | AC Analytical & Consulting, LLC | Puposky | Beltrami | 21518 Basset Drive NW, Puposky, MN 56667 | 218-243-3328 | Yes | Yes | Yes* | Yes* | — | unknown |
| 24 | Koochiching Health Department Water Testing | International Falls | Koochiching | 1000 Fifth Street, International Falls, MN 56649 | 218-283-7070 | Yes | — | — | — | — | unknown |
MDH disclaimer (paraphrase of the PDF): other laboratories may hold accreditation and may not appear because of pending applications or query exclusions. Questions: MNELAP, 651-201-5324 or health.mnelap@state.mn.us. Well Policy Center, 651-201-5594 or health.privatewells@state.mn.us. health.state.mn.us/wellwater.
Machine-readable copy: data/labs-mn.json. Every record includes this source URL.