Background on Sampson County Aquifer 211CPFRU
Water in Sampson County often comes from wells drawing on aquifer 211CPFRU, a deep groundwater source. Local water reaches homes through wells that vary in depth but commonly extend hundreds of feet underground.
Effects of Leaving Radon Untreated Over Time
Radon 222 is a naturally occurring radioactive gas found dissolved in groundwater
Chronic exposure to radon in water can contribute to indoor air radon levels when water is used
Long-term radon presence in household water may increase lung exposure risks via inhalation during water use activities
Risks from radon in water vary widely depending on concentration and household water usage patterns
Radon is not stable in water and can dissipate quickly when water is aerated or exposed to air
Information to Record Before Seeking Treatment Recommendations
Note the depth and type of your water source or well
Collect any recent water quality testing results from your well or water provider
Identify any health or taste concerns linked to water use in your home
Record well construction details such as casing materials and depth intervals
Track water usage habits that might influence radon exposure, such as shower frequency or appliance use
How Well Depth and Source Type Affect Radon Expectations
Aquifer samples from wells 275 to 408 feet deep in Sampson County showed radon detections
Median radon-222 measured in area samples was 124.0 pCi/L with a range from 58.0 to 149.0 pCi/L
Radon concentrations often vary with well depth, geology, and water residence time
Private wells may have radon levels differing from area medians and government sampling
Surface water sources generally have lower radon concentrations than deep groundwater
Additional Questions for Commercial or Industrial Water Users
What volumes of water are processed and how might radon exposure differ from residential usage?
Are there occupational health guidelines that apply to radon exposure via water or air?
Does the facility have continuous monitoring or routine water testing protocols for radon?
What engineering controls or treatment systems are feasible given operational scale?
How do radon levels impact regulatory compliance or reporting requirements?
Household and Facility Symptoms That May Relate to Radon
No immediate taste, odor, or staining changes are caused by radon in water
Visible water quality issues do not typically indicate radon presence or absence
Health symptoms related to radon exposure occur from inhalation, not ingestion
Testing water is necessary to confirm radon presence; symptoms alone are insufficient
Radon is measured in picocuries per liter (pCi/L) and requires specialized testing equipment
Understanding Sampling Terms in This Radon Data
"Detected" means radon was measured at a level above the instrument's reporting limit
"Median" represents the middle value among measured samples from the area
"Range" shows the lowest to highest measured radon levels in the samples
All radon results from area wells were below federal action thresholds for water
These area measurements do not predict individual well radon levels—testing is needed for your water
This information summarizes radon sampling results from three wells drawing on aquifer 211CPFRU in Sampson County, collected by the U.S. Geological Survey in September 2013. For specific details, visit the USGS groundwater data website. When considering radon reduction options, the C-Series Radon in Water Filter ships ready to configure and provides a documented method to reduce radon levels in household water.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2013-09-10. 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 211CPFRU aquifer (Sampson County): 3 results from 3 wells, median 124.0 pCi/L, range 58.0-149.0 pCi/L; none above any federal threshold