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Well Water Testing · Weldon, IA

Water testing in Weldon

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

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Weldon · Decatur County

Well Water Testing in Weldon

Water testing for Iowa homes, above all those on a private well. An accredited laboratory can test the water for coliform bacteria and E. coli, nitrate, arsenic and more. Iowa DNR recommends testing a private well at least once a year.

Weldon is a Decatur County town laid out on August 3, 1880 after the Missouri, Iowa and Nebraska Railroad was built halfway across the county, home to the Weldon Depot, which operated from 1881 to 1946 and was listed on the National Register in 1991. Housing here runs to houses from the railroad years after 1880, a peak of 323 residents in 1920, and later postwar and newer homes, across the extra-wide Main Street, the Weldon Depot area and the older residential blocks.

Weldon homes are inspected by a local partner in our Iowa network.  ·  Call or text (563) 517-7815

Well water in Decatur County

Specific Decatur County well-quality numbers were not available in our research. The Iowa DNR recommends yearly coliform bacteria and nitrate testing and at least one arsenic test, and says free basic testing runs through the Grants to Counties program at the county health department. A 1969 Wayne County report cites an earlier Iowa Geological Survey water atlas on Decatur County from 1967, which we did not open, so no Decatur findings are claimed here.

County facts checked October 2026 against: iowadnr.gov, iowadnr.gov, igs.iihr.uiowa.edu, igs.iihr.uiowa.edu, naturalresources.extension.iastate.edu.

See all Weldon inspections →  ·  Water testing in Iowa, explained →

Water tests available in Weldon

Bacteria

Shows whether surface water or waste is reaching the well.

  • Total coliform bacteria
    Surface contamination reaching the well
  • E. coli
    Fecal contamination from septic, manure or wildlife

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 rock and soil
    10 µg/L (EPA)
  • Lead
    Lead service lines, solder and brass fixtures
  • Manganese
    Natural manganese; a concern for infants
  • 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

Household quality

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

  • Iron
    Rusty staining and metallic taste
  • 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 shown are EPA drinking water standards. Your lab report compares each result to the standards that apply.

Weldon private well testing timeline

Iowa DNR recommends testing a private well at least once a year. Its testing guidance lists coliform bacteria and nitrate every year and arsenic every 3 years, with at least one arsenic test for every well. Source: Iowa DNR
TestYear 1Year 2Year 3Year 4Year 5Year 6
Coliform bacteria
Nitrate
Arsenic

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 far a well must be from common hazards in Weldon

  • Property line4 ft
  • Building sewer line10 ft
  • LP gas tank15 ft
  • Roadside ditch15 ft
  • Stream, pond, lake or wetland25 ft
  • Septic tank50 ft
  • Septic absorption field100 ft
  • Fuel oil or gasoline tank100 ft
  • Fertilizer or chemical storage150 ft
Source: Iowa Administrative Code 567, chapter 49

Septic, feedlot or fuel tank near the well? A coliform and nitrate test shows whether it is reaching the water. Get a free instant quote

Buying a home with a well in Weldon: what happens at the sale

  1. Groundwater Hazard StatementIowa Code 558.69 requires a groundwater hazard statement filed with the declaration of value when a listed condition (including any known well and its status under 455B.190, or a private sewage disposal system) exists on the property, signed by a seller or agent, with a copy given to the buyer.
  2. Wells on the propertyIf known wells are on the property, the statement must give the approximate location of each and its status under Iowa Code 455B.190 (abandoned wells properly plugged); the owner is responsible for the accuracy of the information.
  3. Septic time-of-transfer inspectionIowa Code 455B.172(11) requires a private sewage disposal system serving a building to be inspected before any transfer of ownership, by a DNR-certified inspector, and the county recorder will not record the deed without the report or a binding acknowledgment.
  4. Failing systemsA system that is failing to treat wastewater must be renovated to current standards by the seller or, by agreement and within a reasonable time set by the county board of health or DNR, by the buyer (455B.172(11)(c)).
Source: Iowa Code and Iowa DNR

The paperwork 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 in Iowa?
Any home on a private well, and above all one you are buying. Iowa DNR recommends testing a private well at least once a year, and also when a well is new, after work on the well or pump, and when the water changes in look, smell or taste.
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 state report on groundwater in Decatur County?
A 1969 Iowa Geological Survey report on Wayne County cites a 1967 Decatur County water atlas, Water Atlas No. 2, as the first in a series on south-central Iowa. We did not open that atlas, so we cannot say what it found. It is more than 50 years old, so a current test of your own well is more reliable.
Weldon was platted in 1880 around a railroad depot. What does that tell me about older houses in town?
It suggests the oldest houses are probably well over a century old, so age is the main concern. Original foundations, floor framing and sags, older roofs and flashing, windows, and how the house has been added to over time are the things to watch. Basement walls are worth checking for efflorescence and moisture, and how roof water reaches the ground matters too. At 0.19 square miles, lots are small, so drainage between neighbors matters. Decatur County is EPA Radon Zone 1, so a radon test belongs in the basement review, and a private septic needs inspection before transfer under Iowa Code 455B.172.
What does Iowa say about the wellhead itself?
Under 567 IAC 49.17, a well not in a wellhouse needs a cap that seals tightly against the casing, and the casing must terminate at least one foot above finished grade. A cap on a well with a pitless adapter needs a screened vent at least 12 inches above the ground. Section 49.8 says wells cannot be located in basements or in frost pits. These are the construction rules for new wells. Cap, casing height and drainage around the wellhead are visible items covered in a home inspection, and a bacteria test shows whether they are doing their job.
Who is allowed to do well work in Iowa?
Iowa requires well services to be done by a DNR-certified well contractor who is on site and in direct charge of the work, under 567 IAC 82.2(1) and 49.4(3). The one exception is that a person may perform well services on their own property. DNR certifies well drillers, pump installers and well plugging contractors, and they have different scopes. You can check a contractor's status on DNR's lists. A home inspector or tester does not do licensed well work; testing and a visual check of the wellhead help decide whether to call a certified contractor.
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