Raleigh County, West Virginia, draws groundwater from aquifer 327NEWR. This water travels from underground wells to residential taps through private plumbing systems. The U.S. Geological Survey sampled six wells in this area, measuring radon-222 levels over several days in August 2016. These wells ranged in depth from 60 to 480 feet.
How can I tell if my household's radon treatment keeps up with daily water use?
The radon concentrations measured in the sampled wells had a median value of 45.0 picocuries per liter (pCi/L), with individual test results ranging from 22.0 to 510.0 pCi/L. While these numbers establish the presence of radon in the area’s groundwater, they do not specify the levels in your home's water. Knowing the capacity of your existing treatment equipment in relation to your household’s daily water consumption is key. Treatment systems have rated flow capacities, so if your household’s water use increases or the treatment unit ages, it can fall behind in effectively reducing radon before the water reaches taps. Testing the actual radon concentration in your water supply along with the output rate of your treatment equipment can help determine if your setup supports your typical daily demand.
What symptoms in my home’s water indicate radon presence or treatment shortfalls?
Radon in water is odorless and tasteless and does not cause visible changes to the water itself. Unlike contaminants that might discolor water or cause sediment buildup, radon poses no sensory signs. If your treatment system is overwhelmed, radon may still be present in water vapor released during activities such as showering or cooking, as radon gas can escape from water into indoor air. However, no direct water quality symptoms will signal radon failure. To evaluate treatment effectiveness, water testing is necessary rather than relying on sensory clues.
Why do secondary aesthetic standards differ from health-based limits concerning radon?
Radon is an odorless, radioactive gas that dissolves into groundwater. Federal standards for radon in water focus on health risk prevention from inhalation of radon gas entering indoor air, not on taste or staining properties. In Raleigh County’s aquifer 327NEWR, none of the sampled wells exceeded federal health-based thresholds for radon-222. Secondary standards typically govern non-health factors such as taste, odor, or appearance for other contaminants but do not apply to radon. Understanding this distinction helps clarify that radon levels within the federal guideline range do not imply a water aesthetics problem.
How do sampling depth, well depth, and water source type affect radon expectations?
The radon measurements cited come from wells sampled at depths between 60 and 480 feet. Radon concentration in groundwater commonly varies with depth since deeper water may have had longer contact with radium-bearing rock formations that generate radon gas. Private well depths and construction vary, so radon levels in your own water source could differ from the sampled range. Surface water or municipal sources generally have different radon characteristics than groundwater wells. Therefore, site-specific testing remains essential to determine the radon levels your household actually experiences.
How does water treated with the C-Series Radon in Water Filter differ at the tap?
The C-Series Radon in Water Filter system is designed to reduce radon levels in household water. When configured to match your daily water demand, it effectively lowers radon before water exits the taps, reducing indoor radon gas release from water use. Treated water maintains normal taste and appearance since radon is a colorless and tasteless gas dissolved in water. Unlike aesthetic treatment targets, radon removal does not affect water hardness or mineral content. Using this technology helps align your household’s radon levels with the goals suggested by federal guidelines.
This summary draws on U.S. Geological Survey data for Raleigh County's aquifer 327NEWR, which reports radon-222 concentrations sampled from six wells across the area. For detailed regional data, visit the USGS groundwater monitoring website.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2016-08-11. 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 327NEWR aquifer (Raleigh County): 6 results from 6 wells, median 45.0 pCi/L, range -22.0-510.0 pCi/L; none above any federal threshold