Government Sampling Shows Detectable Radon in Ouachita Parish Groundwater
Data from six samples taken between 2012 and 2014 from wells 340 to 730 feet deep in Ouachita Parish’s aquifer 124SPRT show radon-222 present in all six wells. Concentrations ranged from 44.0 to 207.0 picocuries per liter (pCi/L) with a median of 62.5 pCi/L. None of these measurements exceeded federal thresholds.
Potential Effects of Long-Term Radon Exposure in Household Water
Radon is a naturally occurring radioactive gas that can dissolve into groundwater. When present in household water, it can release into indoor air during water use. Although radon in water does not cause immediate symptoms, long-term exposure to elevated concentrations may increase health risks through inhalation or ingestion. The impact depends on the amount of radon present and the frequency of water use activities such as showering, cooking, and laundering.
What Public Water System Records Show Versus Private Well Testing
Records like these reflect radon measurements in select wells representative of the local aquifer but do not provide a direct reading of your household water. Public system records cover broader area trends, whereas private well testing reveals the specific radon concentration in your home’s water supply. Only an individual test of your own well water can determine your actual radon levels, since radon concentrations can vary widely even between nearby wells.
Why Aesthetic Secondary Standards Differ from Health-Based Limits for Radon
Unlike some constituents regulated for taste, odor, or staining, radon is measured primarily for its potential health effects. Federal standards for radon in water aim to minimize long-term exposure risks rather than satisfy aesthetic criteria. The sampled concentrations in this area were below thresholds linked to increased health risk, showing that detected radon does not necessarily imply a safety concern but does warrant understanding and monitoring.
Influence of Well Depth and Sampling Limitations on Radon Values
Radon levels often vary with groundwater source depth. The sampled wells ranged from 340 to 730 feet deep, which may affect radon concentrations compared with shallower or surface water sources. The data is based on just six samples from separate wells, so the range reflects moderate variability but cannot capture all local differences. A small sample size means local radon levels in your specific well might differ outside this range.
Recommended Testing to Assess Your Household Radon Situation
The only way to determine radon levels in your home’s water is to arrange a certified laboratory test of your own water supply. This test will establish your radon concentration and help guide any needed mitigation steps. If radon is present at levels of concern, the Fleck Radon in Water Filter directly addresses radon reduction by treating water before it enters your household plumbing. It ships ready to configure for your water system, providing an effective layer of protection after you confirm your water’s radon content.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2014-06-19. 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 124SPRT aquifer (Ouachita Parish): 6 results from 6 wells, median 62.5 pCi/L, range 44.0-207.0 pCi/L; none above any federal threshold
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