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Well Water Testing · Apple Valley, MN

Well Water Testing in Apple Valley

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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Apple Valley · Dakota County

Well Water Testing in Apple Valley

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.

Apple Valley is a southern suburb of 1980s-1990s family homes around its parks and lakes. Housing here runs to 1980s-1990s family homes, across the neighborhoods around the parks and lakes.

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Well water in Dakota County

Across townships sampled in 2013 to 2015, the final dataset held 1,184 wells and 19.3% were at or over the 10 mg/L limit, with individual townships ranging from 0% to 44.2%. Eight townships topped 10%. MDH also says arsenic shows up statewide and that manganese in southeastern Minnesota tends to be low, below 50 µg/L. 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, mda.state.mn.us, dakotacountymn.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.
How high was nitrate in Dakota County private wells?
In MDA's 2013 to 2015 Dakota County testing, 19.3% of 1,184 final-dataset wells were at or over 10 mg/L, and township results ranged from 0% to 44.2%. Eight townships had more than 10% of wells over the limit. That variety means a neighbor's result does not predict yours. MDH recommends nitrate testing every other year.
Do you inspect Apple Valley homes?
Yes — late-century homes here commonly need attention to aging water heaters, HVAC and decks.
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