Autotrol Radon in Water Filter

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Understanding Your Water Source in Bexar County's 218EDRDA Aquifer

The groundwater beneath Bexar County comes from the 218EDRDA aquifer, sampled by the U.S. Geological Survey between 2013 and 2017. Water drawn from this aquifer is pressured through wells deep between 229 and 2,326 feet, eventually reaching household taps. This data reflects the general water environment but does not specify conditions for any individual well or residence.

Before Seeking Treatment Advice, Note These Essential Details

When considering radon concerns, it is important to have a current laboratory analysis of your specific water source. Government sampling provides an area-wide picture but cannot substitute for personal water testing. Document the depth of your well, the date and type of any past tests, and any water quality reports you have received. This information forms the basis for selecting treatment equipment suitable for your household’s actual needs.

Radon Versus Other Commonly Confused Water Concerns

Radon in water is often mistaken for other issues such as taste and odor problems or presence of dissolved solids. Unlike aesthetic issues that affect appearance or flavor, radon is a radioactive gas originating from natural uranium decay underground. It can transfer from water to indoor air during household uses like showering or dishwashing. Distinguishing radon requires specific testing, as it does not cause staining or typical water taste changes.

Additional Considerations Unique to Commercial or Industrial Operators

While residential demands focus on family water use, commercial and industrial facilities must evaluate radon in the context of larger water volume needs, regulatory compliance, and equipment design. These operators need to assess treatment system capacity and maintenance schedules that align with continuous or heavy water usage. Households generally have simpler demands, but the principle of matching treatment capacity to daily use remains important.

Interpreting the Range of Radon Measurements Against Federal Guidelines

The USGS reported radon-222 levels in area wells ranged from 8.0 to 570.0 picocuries per liter (pCi/L), with a median of 78.0 pCi/L, across 19 samples from 16 wells. Importantly, none of these samples exceeded federal thresholds for radon in drinking water. Detection of radon indicates its presence but does not signify a violation or immediate health risk. These findings help set expectations but cannot predict levels in an individual household’s water without specific testing.

Which Household Fixtures and Processes Are Most Impacted by Radon

Radon gas is most commonly released into indoor air during water use involving aerosol generation, such as showers, faucets, and washing machines. Fixtures producing fine droplets increase the transfer of radon from water to the air you breathe inside your home. Understanding this helps prioritize treatment or mitigation in areas where air quality concerns exist linked to waterborne radon.

What You Should Not Conclude from Area Data Alone

Area-wide data from Bexar County’s 218EDRDA aquifer provides a valuable overview but does not define radon levels in your well or home. Detection in local wells does not mean your water exceeds any federal limits or that it is unsafe. To determine your household’s condition, arrange for a certified laboratory radon test of your water. For addressing radon found in drinking water, the Autotrol Radon in Water Filter ships ready to configure and uses proven technology to reduce radon concentrations effectively.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2017-12-19. 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 218EDRDA aquifer (Bexar County): 19 results from 16 wells, median 78.0 pCi/L, range -8.0-570.0 pCi/L; none above any federal threshold