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Well Water Testing · Janesville, MN

Well Water Testing in Janesville

Well water testing for homes on a private well across Minnesota. We collect the sample the right way and send it to an accredited laboratory for…

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Janesville · Waseca County

Well Water Testing in Janesville

Well water testing for homes on a private well across Minnesota. We collect the sample the right way and send it to an accredited laboratory for coliform bacteria and E. coli, nitrate, arsenic, lead, manganese, iron, hardness, pH, fluoride, sulfate and uranium. The Minnesota Department of Health recommends testing a private well for coliform bacteria every year, nitrate every other year, and arsenic and lead at least once. We also look at the visible wellhead, the pressure tank and the water treatment equipment during the home inspection.

Janesville is a small lake-side town between Mankato and Waseca. Housing here runs to small-town lake-side homes, across the lake-side neighborhoods.

Janesville is served by our Mankato team →  ·  (507) 721-3820

Well water in Waseca County

Waseca County did not appear on MDA's Township Testing results list, so no county nitrate percentage is quoted here. MDH says central and southeast Minnesota counties have more homes on wells at increased nitrate risk from row crops over sand-gravel or fractured bedrock aquifers, and that arsenic occurs statewide, with about 40 percent of new wells since 2008 showing a detection. MDH gives 100 µg/L as the manganese level for infant formula. We test for coliform bacteria and E. coli, nitrate, arsenic, lead, manganese, iron, hardness, pH, fluoride, sulfate and uranium through an accredited lab.

County facts checked September 2026 against: Minnesota Department of Health, Minnesota Department of Health, Minnesota Department of Health, mndata.web.health.state.mn.us, wasecacounty.gov.

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Questions

Common questions.

Who needs well water testing?
Any home on a private well, and above all when you are buying one. A private well is not regulated like a city water system, so the owner is responsible for knowing what is in the water. Testing before closing tells you whether the water needs treatment while you can still ask questions or negotiate.
What do you test for?
Our lab panel covers coliform bacteria and E. coli, nitrate, arsenic, lead, manganese, iron, hardness, pH, fluoride, sulfate and uranium. Bacteria and nitrate are the short-term health checks. Arsenic, lead, manganese and uranium are the ones you cannot see or taste. Iron, hardness, pH and sulfate explain staining, scale, odor and wear on plumbing and appliances.
How often should a well be tested?
The Minnesota Department of Health recommends coliform bacteria every year, nitrate every other year, and arsenic and lead at least once. Test again after flooding, after any work on the well, or if the taste, color or smell of the water changes.
Is well water testing part of the home inspection?
It is an add-on. Book it with the home inspection and we collect the sample the same visit, so the lab results arrive with time to act on them inside your inspection window.
What must a Waseca County seller file about the septic system?
Along with the Certificate of Real Estate Value, the Auditor's Office needs one of: a Certificate of Compliance, a Notice of Noncompliance, evidence of an escrow account, or an exemption form. Escrow is only allowed from November 1 to April 30. We scope the sewer line and coordinate the licensed inspector so the paperwork is ready.
What is typical in Janesville homes?
Lake-side clay keeps groundwater high and drains slowly — a combination that shows up as basement moisture. We read grading, drain tile and sump function closely, then the mechanicals and roof by age.
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