Radon in Clark County Water: What Government Data Shows About Aquifer N400BSNRGC Levels
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Radon Levels Depend More on the Water Source Than on Plumbing Materials
Many assume that household plumbing materials and their age cause radon in water. However, radon is a naturally occurring radioactive gas that dissolves into groundwater from underground rock formations. It enters the water well before it reaches your home's pipes. While the plumbing system can affect taste or cause corrosion, it does not generate or increase radon levels. In Clark County, the primary concern stems from the aquifer itself, notably the N400BSNRGC groundwater source, sampled by the U.S. Geological Survey.
Certified Laboratory Tests Provide Radon Concentrations, Not Safety Judgments
When you test water radon levels through a certified laboratory, the report you receive will list the concentration of Radon-222 in picocuries per liter (pCi/L). These numerical results indicate how much radon was measured in your sample but do not state whether your water is safe or unsafe. The U.S. Geological Survey sampled three wells in Clark County’s N400BSNRGC aquifer between September 2013 and March 2015, finding radon concentrations ranging from 245 to 370 pCi/L with a median of 275 pCi/L. The tests detected radon in all samples, but concentrations remained below any established federal thresholds. Your well’s specific value can only be known by direct testing of your water.
Aesthetic Secondary Standards and Health-Based Limits Address Different Water Concerns
It is important to distinguish aesthetic secondary standards from health-based limits when evaluating water quality. Secondary standards typically address issues like taste, odor, or minor staining and do not apply directly to radon, which is measured with health risk in mind. For radon, federal thresholds are health-based guidelines designed to manage exposure risk, but the Clark County samples did not exceed those limits. Thus, detections within the range found in the N400BSNRGC aquifer should be understood as measured presence, not a violation or safety concern by themselves.
Treated Water Quality Reflects Radon Reduction Technologies Configured for Home Use
To reduce radon concentrations in household water, specialized treatment equipment such as the C-Series Radon in Water Filter can be used. This system operates using advanced filtration technology designed to lower radon content once water enters the home, effectively improving water quality at the tap. The system ships ready to configure for residential water supplies, helping address radon presence measured in local groundwater. Using such technology offers a method to control radon exposure from water beyond what the source water record alone can indicate.
The Clark County Record Relies on a Limited Number of Samples Over Several Years
The radon data for aquifer N400BSNRGC in Clark County is based on three groundwater samples taken from different wells at depths between 291 and 1050 feet, collected over an 18-month period during 2013 to 2015. While this small sample size does provide a useful regional snapshot, it cannot represent every well or every circumstance. Homeowners should undertake their own testing to obtain precise information about their water. It is also notable that all tested wells in this set showed radon concentrations below federal limits, underscoring that detection levels reflect measured presence rather than noncompliance.
In summary, government sampling in Clark County's N400BSNRGC aquifer identifies radon in groundwater at moderate levels, with no sample exceeding federal health-based thresholds. Your household water quality depends on local conditions that can only be confirmed by direct testing. For radon reduction needs, the C-Series Radon in Water Filter offers a documented technology solution to improve water quality at the point of use.
Source: U.S. Geological Survey groundwater sampling data for Clark County aquifer N400BSNRGC, accessed via waterdata.usgs.gov/monitoring-location/361023115114401/.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2015-03-26. 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 N400BSNRGC aquifer (Clark County): 3 results from 3 wells, median 275.0 pCi/L, range 245.0-370.0 pCi/L; none above any federal threshold