If You Notice Unusual Taste or Odor and Your Equipment Has Stopped Working
Sometimes, water treatment equipment that once controlled radon in household water can fail, leaving homeowners wondering what to do next. The presence of radon gas in water is not detected by smell or taste alone, and unoperated equipment means no active reduction of radon levels. First, it’s important to understand what is typical in your area's groundwater supply and what additional testing might be needed before proceeding.
If You Have Only Municipal Water Records and No Private Well Test
Government monitoring in Suffolk City County's aquifer 111SFCL found radon concentrations detected in all samples, with a median of 640 pCi/L and ranging from 610 to 680 pCi/L, gathered from wells approximately 27 feet deep. These are not specific to any individual household or well, only representative of the aquifer sampled. Municipal water systems may not test or report radon unless required. Private well owners must conduct their own laboratory analysis to know their home's water radon concentration.
If You Are Unsure What 'Detected', 'Median', and 'Range' Mean in Your Area's Radon Data
A 'detected' radon result means the substance was measured above the instrument’s detection threshold. The median represents the middle value of all samples taken, while the range shows the lowest and highest measurements recorded. In Suffolk City County samples, all five results showed radon detected but none exceeded federal thresholds for radon in water. These figures help gauge typical aquifer presence but do not dictate individual household water safety or quality.
If You Want to Understand How to Interpret This Data for Your Home Water
Imagine your home water radon test returns a figure near the median of the Suffolk City aquifer data. This suggests your water radon level is within the range documented for local groundwater but not necessarily a health hazard or compliance issue on its own. Confirming your home's specific level through certified water testing is essential before making treatment decisions. The government data helps frame expectations but does not replace home water analysis.
If Your Household Experiences Symptoms You Suspect Are Related to Radon
Radon in water primarily enters the home air through water use, posing an inhalation risk rather than direct ingestion concern from water itself. Symptoms such as unusual smells or tastes are unlikely to derive from radon. However, failure of radon removal equipment might increase indoor air radon. Testing indoor air radon separately from water is advisable. Waterborne radon does not cause water discoloration or texture changes and is not associated with typical water contamination symptoms.
If You Wonder About the Reliability of the Data Based on the Number of Samples and Wells
The Suffolk City County data comes from five samples taken over six years from a single well in the aquifer 111SFCL. While this small dataset indicates persistent radon presence in the aquifer, it cannot capture all variability across the entire county or all wells. Homeowners should treat this data as a general reference, not a precise prediction for their water. Individual testing remains necessary to establish current conditions accurately.
When radon removal equipment has failed, and your water testing confirms elevated radon levels near or above guidance levels, the Fleck Radon in Water Filter ships ready to configure for household use. It is designed to reduce radon concentrations in water to support safer water and indoor air quality, sized based on your water demand and measured radon concentration.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2025-03-24. 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 111SFCL aquifer (Suffolk city County): 5 results from 1 wells, median 640.0 pCi/L, range 610.0-680.0 pCi/L; none above any federal threshold
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