Public-System Records Versus Private-Well Testing: What They Establish
The radon data available for Union Parish, Louisiana, comes from samples taken by the U.S. Geological Survey of aquifer 124SPRT. These samples reflect results from four separate wells ranging in depth from 350 to 725 feet, recorded during 2012. It is important to understand that these measurements represent the aquifer in this area but do not specify the radon concentration in any individual household well or municipal water system. To accurately assess radon levels in your own water, a separate water test performed by a certified laboratory is necessary.
Interpreting 'Detected,' 'Median,' and 'Range' in Union Parish Sampling Data
In the samples from Union Parish’s aquifer, radon was detected in all four wells, with a median measurement of 96.0 picocuries per liter (pCi/L) and a range stretching from 69.0 to 300.0 pCi/L. Detected means the instrumentation measured radon in each sample, but it does not indicate a health violation or a harmful concentration by itself. None of these results exceeded any federal threshold for radon in drinking water, indicating compliance with regulatory standards.
First Affected Fixtures, Appliances, and Processes
Radon dissolved in water can be released into the air during common household activities, such as showering, cooking, or washing dishes. Fixtures with high water agitation or aeration—like showerheads and faucets with aerators—are typically where radon gas is first released. While radon does not generally cause staining or taste issues in water, its presence as a gas may raise indoor air quality concerns, underscoring the importance of mitigation when elevated radon levels are suspected.
Evaluating Treatment Capacity Against Household Daily Demand
Choosing appropriate radon water treatment involves considering the daily volume of water your household uses. Treatment technologies are designed to handle certain flow rates, and ensuring the capacity matches or exceeds your household’s water use is crucial for effective radon reduction. This helps ensure that all water entering the home is treated consistently, maintaining water quality in all outlets.
Radon Entry into Groundwater in Union Parish
Radon forms naturally from the radioactive decay of uranium present in soil and rock. In Union Parish’s aquifer 124SPRT, radon can dissolve into groundwater as it moves through uranium-bearing geological formations at depths between 350 and 725 feet. This natural process explains why radon is consistently detected in water sources in this region. It is unrelated to surface contamination or water treatment practices upstream.
Reading a Certified Laboratory Test Report for Radon in Water
A certified radon in water test report typically lists the radon concentration in picocuries per liter. It will note whether radon was detected, the exact concentration measurement, and any applicable test limits. The report does not categorize detected radon as a violation unless it exceeds federal guidelines, which for radon are based on EPA recommendations rather than enforceable legal limits. Understanding the reported values helps homeowners make informed decisions about water treatment options.
The radon data summarized here covers four samples from wells in Union Parish’s aquifer 124SPRT, collected in 2012 by the U.S. Geological Survey. For complete details, refer to the original sampling data available at the USGS water data portal.
To address radon in residential water, the C-Series Radon in Water Filter ships ready to configure and can be selected according to your household’s water use and treatment needs.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2012-09-27. 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 (Union Parish): 4 results from 4 wells, median 96.0 pCi/L, range 69.0-300.0 pCi/L; none above any federal threshold