How the C-Series System Addresses Radon in Water
Radon-222 is a naturally occurring radioactive gas that can dissolve into groundwater, potentially entering household water supplies. To reduce radon levels in water, specialized filtration systems are designed to remove or neutralize the gas before use. The C-Series Radon in Water Filter employs proven technology to lower radon concentrations by facilitating the release of radon gas from water, capturing or venting it safely, thus reducing exposure through activities using water inside the home.
Interpreting 'Detected', 'Median', and 'Range' in Richmond County Radon Sampling
The US Geological Survey conducted groundwater sampling in Richmond County within the 125DBLNL aquifer, collecting three samples from a well drilled approximately 120 feet deep between June 2021 and July 2025. Radon was detected in all three samples, with a median concentration of 170.0 picocuries per liter (pCi/L) and a range spanning from 162.0 to 184.0 pCi/L. Importantly, none of these results exceeded any federal thresholds for radon in water. These terms indicate presence and variability in the measured concentrations over time and do not imply any single sample or household water supply matches these values exactly.
The Independent Role of Plumbing Materials and Age
Radon levels measured in source groundwater are not influenced by the materials or age of household plumbing. While plumbing condition can affect other aspects of water quality such as metallic taste or staining, it does not impact radon concentration. Therefore, decisions about radon treatment rely on water source testing rather than plumbing characteristics.
Differences Between Public-System Records and Private-Well Testing
Public water system records and area groundwater sampling provide general information about regional water quality trends but do not substitute for individual well testing. While the USGS sampling offers an overview of radon presence in aquifers serving Richmond County, private wells can vary significantly. Homeowners must conduct their own water testing to determine the actual radon levels in their household water supply before selecting an appropriate treatment option.
Impact of Sampling Depth and Water Source Type on Expectations
The radon measurements cited were taken from wells about 120 feet deep, which reflects typical groundwater conditions in Richmond County's aquifer. Radon concentrations can vary with well depth, water source, and geological factors. Shallow wells or surface water sources may show different radon levels compared to deep aquifers. Understanding these variables helps homeowners anticipate potential radon presence and the necessity for treatment.
What Richmond County Area Data Does Not Establish
Area-wide radon sampling provides valuable context but cannot define the radon concentration in any specific household water supply. Detection in surrounding wells does not mean a particular home’s water is above or below any standard. Moreover, the median and range reflect variability in multiple samples, not a fixed level. Homeowners should not assume their water is safe or problematic based solely on this data. Instead, individual water testing is required to guide treatment decisions effectively.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2025-07-07. 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 125DBLNL aquifer (Richmond County): 3 results from 1 wells, median 170.0 pCi/L, range 162.0-184.0 pCi/L; none above any federal threshold

