How the Pentair System Removes Radon from Household Water
The Pentair Radon in Water Filter uses specialized filtration media to reduce radon-222 naturally occurring in groundwater. Radon is a radioactive gas that can dissolve into water from surrounding soil and rocks. When water containing radon is used in the home, the gas can be released into indoor air. The Pentair system treats water by adsorbing and trapping radon atoms before they reach your taps, helping reduce exposure. It ships ready to configure for household water systems.
Scope and Limitations of the Six-Well Radon Measurements in Caroline County
The U.S. Geological Survey collected six radon samples from separate wells in aquifer 124PNPN, all within Caroline County, Maryland, during 2012. These samples represent radon levels found across this region’s groundwater sources but do not reflect any single well or home’s water. Because the number of samples is small, the data provide a regional snapshot rather than a detailed profile. Variability in radon within the aquifer may be greater than indicated by these six points.
Influence of Well Depth and Source Type on Expected Radon Levels
The sampled wells varied widely in depth—from 22 to 533 feet. Radon concentrations can differ according to how deep a well reaches into the aquifer and the geological materials it passes through. Shallow wells may show different radon patterns than deeper ones due to gas migration and soil characteristics around the well. Homeowners with wells drawing from various depths should consider this variability when evaluating radon risks and treatment needs.
Interpreting the Median and Range of Radon Levels for Your Household
The median radon concentration measured by USGS in this area was 300 picocuries per liter (pCi/L), with individual results ranging from 222 to 610 pCi/L. While this range does not exceed any federal regulatory threshold for radon in water, it indicates that radon is consistently detectable across sampled wells. A household should not assume its own water matches these exact values but can expect radon presence at levels similar to this regional median and range.
What a Certified Lab Test for Radon in Water Includes and How to Interpret It
A certified laboratory test for radon measures the radioactivity of water samples expressed in picocuries per liter (pCi/L). Such tests use specialized detection equipment to quantify dissolved radon gas. The test result will specify the concentration detected but cannot determine health risk alone; interpretation requires comparing with regulatory thresholds and considering indoor air impacts. Since radon levels vary by well, this test is the only way to know your household’s specific radon concentration.
Additional Considerations for Commercial and Industrial Water Users
Beyond a household’s needs, commercial and industrial water users may evaluate radon concentrations in tandem with other factors such as water volume, process sensitivity, and worker exposure. These operators often require more frequent testing and may integrate treatment into larger water management strategies. Households generally focus solely on reducing radon for indoor air quality and drinking water purposes, simplifying their decision compared to businesses.
To decide which treatment class fits your home's water, the key step is to obtain a certified laboratory radon test of your own well or water source. If the result shows radon levels near or above regional medians, a Pentair Radon in Water Filter can effectively reduce radon gas in your household water supply.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2012-08-22. 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 124PNPN aquifer (Caroline County): 6 results from 6 wells, median 300.0 pCi/L, range 222.0-610.0 pCi/L; none above any federal threshold
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