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Well Water Testing · Sheffield, IA

Water testing in Sheffield

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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Sheffield · Franklin County

Well Water Testing in Sheffield

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.

Sheffield is a small Franklin County farm town of older frame homes. Housing here runs to older frame farm-town homes, across the town core.

Questions about a Sheffield home?  ·  Call or text (563) 517-7815

Well water in Franklin County

Private wells in Franklin County are the owner's responsibility to test. Iowa DNR recommends that all private well owners test at least annually, with coliform bacteria and nitrate checked each year, and arsenic tested at least once. DNR also notes that nitrate, arsenic, and other contaminants occur naturally in some aquifers, and that shallow groundwater is more exposed to surface contaminants. Shallow wells can respond quickly to surface conditions. Published county-level well results were not found for Franklin County, so testing your own well is the only way to know what is in it.

County facts checked October 2026 against: iowadnr.gov, iowadnr.gov.

Home inspection in Sheffield →  ·  Water testing in Iowa, explained →

Water tests available in Sheffield

Bacteria

Shows whether surface water or waste is reaching the well.

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. Compare your lab results with these values.

Sheffield 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

When to test your water

  • Every yearColiform bacteria and nitrate, the basic safety checks for a private well.
  • At least onceArsenic and manganese. Iowa DNR's testing list repeats arsenic every 3 years.
  • Before a baby drinks the waterNitrate. Water above 10 mg/L as nitrogen should not be used for infant formula or juice.
  • When you buy a homeA full baseline while you can still ask questions or negotiate.
  • New well or well workWhen a well is new and after service on the well or pump.
  • After a flood or power outageIf flood water was near or reached the well, or an outage dropped the water pressure.
  • When taste, color or smell changesA change in the water is a reason to test.
  • Near a fuel tankVOCs, plus DRO for diesel and fuel oil. Iowa DNR names gasoline among the VOCs some wells are susceptible to, and Iowa's well rules list 100 feet between a well and a liquid fuel storage tank other than propane.
  • City water in an older homeLead. Iowa DNR says homes built before 1986 are more likely to have lead pipes, fixtures and solder.

Based on: Iowa DNR private wells, Iowa DNR testing frequency, Iowa DNR why test, Iowa DNR floods, State Hygienic Laboratory, 567 IAC 49.

How to get it done

  1. Choose your testsPick the water testing you need in the free instant quote.
  2. Pick a timeBook online. The quote takes about 30 seconds.
  3. Get certified lab resultsA certified laboratory analyzes the water and reports each result.

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Private wells and water systems around Sheffield

Sheffield, IA water testing: whole-house activated carbon filter tank in a Iowa basement in an older basement
Coliform bacteria: Iowa DNR recommends testing every year →
Distiller appliance on a Iowa kitchen counter in a farmhouse kitchen (Franklin County, Iowa)
Nitrate: EPA limit 10 mg/L, highest risk to infants →
Sheffield, IA water testing: iowa well cap beside a farmhouse, summer
Arsenic: Iowa DNR says test at least once →

How far a well must be from common hazards in Sheffield

  • 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 Sheffield: 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.
My home is on city water in Iowa. Is water testing still worth it?
Often, yes. Lead in drinking water comes mainly from service lines and home plumbing. Iowa DNR says a water system cannot control the materials used in home plumbing. Your utility sends a Consumer Confidence Report each year. Under the federal Lead and Copper Rule, utilities sample selected homes, those more likely to have lead plumbing. Iowa community water systems had to prepare a lead service line inventory under the federal rule, and it must be publicly available. DNR expects homes built after 1988 to have service lines made of something other than lead. To learn what your service line is made of, ask your water utility. DNR also notes that utilities are not required to offer lead testing on request. EPA says testing is the only sure way to know whether harmful amounts of lead are in your water.
What does DNR say about testing a Franklin County well for arsenic?
Iowa DNR says every private well should have at least one arsenic test. Arsenic occurs naturally in some aquifers, so the result cannot be guessed from appearance, taste, or a neighbor's well. If a result is elevated, DNR indicates testing may be needed more often, and water above EPA limits should not be consumed without proper treatment.
Do you cover Sheffield?
Yes — Franklin County is in our northern range. The older frame stock concentrates its findings in services, roofs and foundations, and the frost depth required locally makes footing and frost-heave evidence part of the structural read.
Is nitrate in well water dangerous for infants?
Yes. The State Hygienic Laboratory says nitrate above 10 mg/L as N may pose a serious health hazard for infants, and such water should not be used in infant formula or juice. Infants fed it can develop methemoglobinemia, or blue baby syndrome, a life-threatening illness. Boiling does not remove nitrate. Shallow wells and poorly located, built or maintained wells are more likely to have nitrate, so annual testing is the way to know. A nitrate test is the only way to learn whether the water at a home with young children is below the 10 mg/L limit.
When should I test the water if I'm buying a home with a well?
DNR recommends testing when a well is brand new, after any service on the well or pump, after power outages that cause loss of pressure, and when water looks, smells or tastes different. Treat a purchase like a new-owner situation: the owner of the well is responsible for its testing. Coliform bacteria and nitrate are annual tests, and arsenic is recommended at least once. A coliform, nitrate and arsenic test on the well before closing gives the buyer a lab result for the water they will be drinking.
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