Radon Levels in Logan County Water: Understanding the Range and What It Means for Your Household

U.S. Geological Survey data from Logan County aquifer 327KNWH shows radon-222 was detected in all six sampled wells, ranging from 10.0 to 620.0 picocuries per liter (pCi/L), with a median of 239.5 pCi/L. These samples, taken in summer 2017 from wells 10 to 87 feet deep, provide an area snapshot, not a specific well test result.

What the Measured Range Means Against Federal Standards, and What It Does Not Mean

All detected radon values in the samples were below federal limits

The maximum radon level measured, 620.0 pCi/L, did not exceed applicable federal guidance levels for radon in water. This means none of these area samples represent a regulatory violation.

Detection does not equal a health violation or unsafe water

Detection means radon was measurable, not that water is unsafe. The federal standard addresses health risk thresholds, which these area samples do not exceed.

These data reflect only the sampled wells, not your private well

Because radon levels can vary greatly between wells, your own water may differ and requires specific testing to know.

How Public-System Records Differ from Private-Well Testing in What They Establish

Public water systems provide ongoing measured records

Municipal or other public systems regularly monitor water quality, giving a general picture of system-wide radon levels over time.

Private well samples offer point-in-time, single-source data

Private wells vary widely. Government aquifer sampling shows possible radon ranges, but certified lab tests of your well water provide actual current data for your home.

Government sampling reports are helpful but not definitive for individual decisions

Area data support awareness but cannot substitute for your well's test results to guide treatment choices.

The Role of Plumbing Material and Age, Separate from the Source Water

Plumbing can influence radon presence at the tap

Older plumbing or materials that trap gases may impact radon levels experienced in household water, independent of source water content.

System components can affect radon release into indoor air

Radon dissolved in water can volatilize when water is used, depending on faucet design and ventilation.

Which Fixtures, Appliances, or Processes Are Affected First and Why

Water uses that aerate can release radon gas readily

Showers, faucets, and humidifiers tend to release radon from water into indoor air faster than other fixtures.

Appliances like ice makers or refrigerators may contain trace radon but pose less concern

These appliances generally do not aerate water and thus contribute less to radon gas exposure.

What a Certified Laboratory Test for Radon Reports and How to Read It

Results specify radon concentration in picocuries per liter (pCi/L)

Certified lab reports give a numeric radon level for your water at the time of sampling.

Compare your results to federal guidance levels

Knowing where your water’s radon concentration falls helps determine need for treatment.

Laboratory methods follow strict protocols for accuracy

Certified testing ensures reliable data for making informed decisions about your household water quality.

In summary, area sampling in Logan County’s aquifer 327KNWH shows radon is commonly detected but below federal thresholds, which does not guarantee your well’s radon content. Confirm your household’s water with certified testing. If treatment is needed, the Autotrol Radon in Water Filter ships ready to configure for effective reduction of radon levels.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2017-07-19. These figures describe groundwater sampled in this area. They are not a test of any individual private well - only a test of that well can establish its own water.

On record: U.S. Geological Survey sampling of Radon-222 in the 327KNWH aquifer (Logan County): 6 results from 6 wells, median 239.5 pCi/L, range 10.0-620.0 pCi/L; none above any federal threshold