Isle Royale National Park
- Coliform Bacteria
About 1,614 households in Baraga County, 47% of the county, rely on a private well. Nobody tests that water unless the owner does.
Most homes in Baraga County are on a private well: about 1,614 households, 47% of the county. That makes Baraga County one of the places in Michigan where the water department is the homeowner.
Michigan’s well construction code applies in Baraga County, which means a permit from the local health department, an inspection, and a bacteria sample before use. Selling a home with a well may trigger a county point-of-sale program; the health department can confirm.
Michigan requires new wells to be tested at installation under the well construction code (Part 127 of the Public Health Code). Local health departments issue the permit and require the sample.
No statewide requirement, but several counties run time-of-sale or point-of-sale well and septic evaluation programs. Check the county page.
EGLE recommends testing for coliform bacteria, nitrate and nitrite, fluoride, chloride, sulfate, sodium, hardness, and metals including arsenic, lead, iron, manganese, copper, uranium and others. Bacteria and nitrate yearly; a full chemistry panel every few years or when water changes.
Eight county health departments run their own onsite labs (Washtenaw, Oakland, Kalamazoo, Saginaw, Luce, Mackinac, Alger, Schoolcraft). Residents elsewhere can order a mail-in test through the EGLE Drinking Water Laboratory.
2 certified labs within 40 miles serve Baraga County, starting with Isle Royale National Park in Houghton (about 25 miles from the county center). Each card below shows whether the lab takes homeowner samples and which tests it is certified for.
3 certified labs within 40 miles
Homeowner samples ยท Walk-in
3 licensed contractors serve Baraga County, including Larson Pump Co, LLC and Larson Well Drilling LLC. Each profile carries the state license number and the date we checked it, and the filters below sort them by drilling, pump work or treatment.
3 licensed contractors
License 07-2521 Active
License 07-1779 Active
License 07-2649 Active
What comes up with the water depends on the aquifer. A first full panel tells you which of them apply to your well.
Varies by location. Check the state well record search for logs of nearby wells.
Neighboring counties: Houghton County, Keweenaw County, Ontonagon County, Iron County.
National ranges from published 2025 to 2026 contractor pricing. Local quotes vary with depth, access and materials.
About 1,614, or 47% of households, based on Census housing data and state well surveys. The share is highest outside the towns with public water.
Isle Royale National Park in Houghton, about 25 miles away. Call first to ask whether they accept homeowner samples.
Yes. The local health department issues the permit and inspects the well under the Michigan well construction code.
A bacteria and nitrate test runs $25 to $75 at most certified labs; a full panel with metals is $150 to $400. Mail-in kits cost about the same as walking in.