Autotrol Radon in Water Filter

Buy Now

View full details

Distinguishing Radon From Similar Water Concerns

Radon is a naturally occurring radioactive gas that can dissolve into groundwater, unlike more common water issues such as hardness or iron staining. While hardness and iron produce visible effects like scaling or discoloration, radon is odorless, colorless, and tasteless. Its presence is identified only through specific laboratory testing that measures radioactivity, not by typical visual or sensory cues often confused with other water problems.

Considerations for Larger, Secondary, or Seasonal AZ Households

Radon levels in water may remain relatively consistent across a supply source, but water usage patterns affect exposure risk. Large households with higher water consumption may release more radon gas into indoor air during activities like showering or cooking. Similarly, second homes or seasonal residences might experience varying radon exposure linked to water stagnation or less frequent water use, which can alter how radon accumulates indoors over time.

Fixtures and Appliances Most Sensitive to Radon Presence

Fixtures that aerate or agitate water first release dissolved radon gas into indoor air. Showers, faucets with spray nozzles, and water heaters contribute to this process by increasing the water's surface area or temperature, aiding radon escape. Appliances that use large volumes of water or that consume heated water intensify indoor radon accumulation risks. Knowing which fixtures impact radon release helps prioritize where treatment is most beneficial.

Interpreting the Measured Radon Range Versus Federal Standards

Government sampling of 14 wells in the AZ aquifer from 2013 to 2017 detected radon-222 in each sample, with concentrations ranging from 91.0 to 1140.0 picocuries per liter (pCi/L) and a median value of 540.0 pCi/L. These results, however, did not exceed any federal thresholds applicable to radon in water. It is important to note that these area measurements describe general aquifer conditions and do not indicate the radon level in any individual household’s water supply. An individual water test is necessary to determine a home's specific radon concentration.

Distinguishing Aesthetic Secondary Standards From Health-Based Limits for Radon

Radon in water is regulated primarily due to its potential health effects when released into indoor air, not because it causes taste or staining problems. Therefore, federal limits are health-based, focusing on reducing indoor air exposure rather than addressing water aesthetics. Secondary standards typically cover substances affecting taste or appearance and do not apply to radon. Understanding this difference helps focus treatment decisions on health risk mitigation rather than water quality perception.

Summary

This briefing clarified the meaning of radon measurements in the AZ aquifer as distinct from individual household water tests and differentiated radon’s characteristics from more common water issues. It also explained the impact on household usage patterns and the relevant federal standards that guide treatment decisions.

For households with existing equipment that has failed, the Autotrol Radon in Water Filter ships ready to configure and provides a documented solution for reducing radon levels in residential water, helping restore effective treatment.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2017-08-22. 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 aquifer (FIPS ): 14 results from 14 wells, median 540.0 pCi/L, range 91.0-1140.0 pCi/L; none above any federal threshold