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Well Water Testing · Lamberton, MN

Water testing in Lamberton

Water testing for Minnesota homes, above all those on a private well. An accredited laboratory tests the water for coliform bacteria and E. coli…

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Lamberton · Redwood County

Well Water Testing in Lamberton

Water testing for Minnesota homes, above all those on a private well. An accredited laboratory tests the water for coliform bacteria and E. coli, nitrate, arsenic, lead, manganese, VOCs (volatile organic compounds), DRO (diesel range organics), 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.

Lamberton is a small Cottonwood River farm town of older housing. Housing here runs to older Cottonwood River town homes, across the town core.

Questions about a Lamberton home?  ·  Call or text (612) 457-1634

Well water in Redwood County

MDA's township testing schedule lists one Redwood County township, Swedes Forest, sampled starting in 2019. A news report on the program says 6.7% of 15 wells tested there were above the 10 mg/L nitrate standard, which is one well, so it says little about the county as a whole. MDA's schedule lists no other Redwood County township reports. MDH says about 10 percent of Minnesota private wells exceed 10 ug/L arsenic, and levels can differ between wells in a small area.

County facts checked October 2026 against: mda.state.mn.us, wrl.mnpals.net, nujournal.com, Minnesota Department of Health.

Private wells and water systems around Lamberton

Lamberton, MN water testing: copper main water line with shutoff valve in a 1970s unfinished Minnesota basement
DRO: a screen for diesel and heating-oil petroleum →
Water heater beside a well pressure tank in an older fieldstone Minnesota basement (Redwood County, Minnesota)
Nitrate: EPA limit 10 mg/L, highest risk to infants →
Lamberton, MN water testing: under-sink reverse osmosis filter in a newer Minnesota basement
Coliform bacteria: MDH recommends testing every year →

See all Lamberton inspections →  ·  More about well water testing →  ·  Every water test, explained →

Water tests available in Lamberton

Bacteria

Shows whether surface water or waste is reaching the well.

  • Total coliform bacteria
    Surface contamination reaching the well
    None should be present (MDH)
  • E. coli
    Fecal contamination from septic, manure or wildlife
    None should be present (MDH)

Health chemicals

No taste, color or smell. These are the long-term health checks.

  • Nitrate
    Fertilizer, septic and manure; highest risk to infants
    10 mg/L (EPA)
  • Arsenic
    Natural arsenic from Minnesota rock and soil
    10 µg/L (EPA)
  • Lead
    Lead service lines, solder and brass fixtures
    No safe level (MDH)
  • Manganese
    Natural manganese; a concern for infants
    100 µg/L for infants (MDH guidance)
  • Fluoride
    Natural fluoride; dental health
    4.0 mg/L (EPA)
  • Uranium
    Natural radionuclide in groundwater
    30 µg/L (EPA)

Petroleum & solvents

Fuel and chemical spills from old tanks or nearby sites.

  • VOCs (volatile organic compounds)
    Fuels, solvents, degreasers and paints
    Varies by compound (EPA)
  • DRO (diesel range organics)
    Diesel and heating-oil petroleum
    No limit of its own; a petroleum screen (MPCA)

Household quality

Staining, scale and taste, and choosing the right treatment.

  • Iron
    Rusty staining and metallic taste
    0.3 mg/L, aesthetic (MDH)
  • Hardness
    Scale buildup; sizing a water softener
    No health standard
  • pH
    Corrosive or scaling water
    6.5 to 8.5, aesthetic (EPA)
  • Sulfate
    Taste and odor; diarrhea risk for infants
    250 mg/L, aesthetic (EPA)

Limits from MDH, EPA and MPCA. Your lab report compares each result to these values.

Lamberton private well testing timeline

Minnesota Department of Health schedule: coliform bacteria every year, nitrate every other year, arsenic and lead at least once. Source: MDH
TestYear 1Year 2Year 3Year 4Year 5Year 6
Coliform bacteria
Nitrate
Arsenic
Lead

Test again any time after flooding, after work on the well, or when the water's taste, color or smell changes, and always when you buy a home with a well.

How long a private well lasts in Lamberton

0255075100+ years
25 to 50 years is common
100+ possible

Wells built before 1974, when Minnesota's well code began, are listed by MDH as higher risk for bacteria, along with leaking dug wells, wells in old frost pits and wells with corroded casings.

Source: Minnesota Department of Health

Wells built before 1974 often have no record on file. Test the water before you close. Get a free instant quote

Buying a home with a well in Lamberton: the disclosure rules

  1. Before the purchase agreementThe seller discloses in writing every known well and whether it is in use, not in use or sealed.
  2. At closingA well disclosure certificate is signed, unless the deed says the seller knows of no wells.
  3. If a well was hiddenA seller who knew of an undisclosed well can owe the sealing cost and attorney fees if the buyer sues within six years.
Source: Minnesota Statutes 103I.235

The disclosure tells you a well exists, not what is in it. Add water testing to your inspection. Get a free instant quote

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 does the water panel cover?
The panel covers coliform bacteria and E. coli, nitrate, arsenic, lead, manganese, VOCs (volatile organic compounds), DRO (diesel range organics), 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. VOCs and DRO screen for solvents and petroleum, such as fuel from an old oil tank or a nearby leak site. 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. Add it to your home inspection quote. Testing early in your inspection window leaves time to act on the results.
Is there a nitrate report for private wells in Redwood County?
Only for Swedes Forest Township, selected for vulnerable geology and row crop agriculture. A news report on the results says 6.7% of 15 wells were above the standard, a very small sample. MDA lists no other Redwood County report, so there is no county-wide percentage to quote. A lab-reported nitrate result on your own well is the reliable number.
My home is on city water. Is water testing still worth it?
Often yes. Community water systems follow EPA testing rules and report results in an annual Consumer Confidence Report, but that report does not measure your own plumbing. MDH and EPA say lead enters mainly from service lines and plumbing materials, and the only way to know is a tap test. MDH recommends an accredited lab, and your utility can say whether your home has a lead service line.
When should a home be tested for DRO or VOCs?
MDH suggests considering a VOC test when a well is near fuel tanks or a commercial or industrial area. MPCA reports petroleum has leaked at about 22,000 Minnesota sites, including home heating-oil tanks, and releases can threaten drinking water and send vapors into buildings. Reasons to test include a nearby leak site, a former or buried fuel tank, or a fuel odor or sheen. MPCA's leaking-tank-site database shows reported releases.
Do you cover Lamberton?
Yes — and river-adjacent lots get particular attention on grading and past high-water evidence.
Is there a safe limit for DRO in drinking water?
DRO has no health limit of its own. MPCA guidance says DRO and GRO results are not used to assess human health risks. Instead, specific chemicals such as VOCs and PAHs are compared with MDH human-health-based water guidance values. Ask your lab and MPCA how to interpret a result.
How often should I test my well for coliform bacteria in Minnesota?
MDH recommends testing private wells for coliform bacteria every year. It also recommends testing after any well work and after any change in the water's taste, smell, or appearance. Use an accredited laboratory, which can provide a sample container and instructions for collecting the sample.
What is a well pit and why is it a concern?
Older wells were often finished in pits below ground so pipes would not freeze. The Department of Health says pits are a health hazard because flood water and runoff can flow into the well, and a safety hazard because people, animals, or equipment can fall in and toxic gases can build up. Current rules prohibit them; MDH recommends upgrading with a pitless adapter. A coliform test shows whether bacteria are getting in.
How common is arsenic in Minnesota well water?
The Department of Health says about 40 percent of Minnesota wells have arsenic in the water. It occurs naturally in rocks and soil, levels can differ between wells even within a small area, and you cannot taste, see, or smell it. The EPA limit for community water systems is 10 micrograms per liter. Only a lab test shows the arsenic level in a specific well.
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