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Common Misunderstandings About Radon in Household Water

Many homeowners concerned about radon in water assume that a single measurement or nearby test confirms the radon level in their own tap. However, government sampling shows radon levels vary widely between wells, even within the same aquifer. This means that while radon is detected in Cumberland County's groundwater, individual household water can differ significantly. To know your specific water condition, a direct test of your well or water source is necessary.

How Water Quality Changes at the Faucet After Treatment

Using a device like the Fleck Radon in Water Filter changes the water by reducing radon concentrations before it reaches your taps. This treatment lowers the amount of radon dissolved in the water, which may also affect the air in your home by limiting radon gas released during water use. Post-treatment water will have diminished radon levels compared to the untreated supply, improving overall water safety and comfort.

Fixtures and Appliances Affected First and Explanation

The fixtures and appliances that interact with water most frequently and with the largest volume, such as kitchen sinks, showers, and washing machines, will experience the most immediate changes after radon treatment. These points release radon gas into the indoor air primarily during activities involving water agitation or heating, such as showering or laundry. Treating water before it reaches these outlets reduces radon exposure indoors.

Key Information to Record Before Seeking Advice

Before pursuing treatment options, it is important to record details from any water testing you conduct. Include the radon concentration found in your household water, the depth of your well, and the date of sampling. Note that government data for Cumberland County shows a median radon level of 89.0 pCi/L in aquifer samples ranging from 37.0 to 280.0 pCi/L, but these values are from different wells and not a direct indicator of your own water.

Variations in Radon Levels Over Time in Cumberland County

The official data from 2019 includes five radon measurements in wells between 70 and 223 feet deep. Sampling dates ranged from July 9 to August 28. Radon levels varied from 37.0 to 280.0 pCi/L with a median of 89.0 pCi/L. This range demonstrates natural variation over a short period and between locations in the same aquifer. Extended or repeated sampling may reveal broader seasonal or multi-year trends but was not part of this dataset.

Consequences of Leaving Radon Untreated in Water

Radon is a radioactive gas that can dissolve in water and release into indoor air during typical household use. While the sampled radon levels in Cumberland County do not exceed federal thresholds, prolonged exposure to elevated radon concentrations from water contributes to cumulative indoor radon levels. Without treatment, this could incrementally increase inhalation risks, although water-borne radon typically contributes less than radon from soil gas intrusion.

Impact of Well Depth and Source Type on Radon Expectations

The depth of your well and the type of water source affect radon concentrations. The sampled wells in Cumberland County ranged from 70 to 223 feet deep. Generally, deeper wells may encounter variations in radon due to differing geological formations and decay of radon parents underground. Groundwater from the local aquifer (361MRBG) shows detectable radon in all tested wells, but individual results depend on your specific site conditions and well construction.

The Fleck Radon in Water Filter is designed to address radon levels measured in household water directly. It ships ready to configure and reduces radon concentrations based on the demand figure you identify through water testing. This product offers an effective way to lower radon in water, improving household water quality and helping manage indoor radon exposure.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2019-08-28. 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 361MRBG aquifer (Cumberland County): 5 results from 5 wells, median 89.0 pCi/L, range 37.0-280.0 pCi/L; none above any federal threshold