Understanding Your Radon Laboratory Test Report

Reported Radon Levels Show Activity in All Tested Wells

The U.S. Geological Survey sampled 13 wells in Pottawatomie County's aquifer 310WLNG, each 102 to 320 feet deep, detecting radon-222 in all samples.

Median and Range Represent Regional Data, Not Individual Wells

The median radon concentration was 270 pCi/L with a range from 95 to 3600 pCi/L, reflecting variability across the area rather than your own water.

No Sample Exceeded Federal Radon Thresholds

None of the 13 samples surpassed federal safety thresholds, indicating compliance at the area level but not guaranteeing your individual well’s levels.

Steps to Narrow Down Radon Sources in Household Water

Start with Household Air Radon Testing

Radon primarily enters homes through soil gas. Testing indoor air helps identify if water contributes significantly to indoor radon levels.

Conduct a Certified Laboratory Radon-in-Water Test

To determine radon concentration in your water, arrange for a certified lab test specifically on your household water sample.

Evaluate Well Construction and Depth

Radon concentrations often vary with well depth and construction; knowing these details informs potential treatment needs.

Long-Term Considerations for Untreated Radon in Water

Potential Contribution to Indoor Air Radon Levels

Radon can escape from water into indoor air during household activities, possibly increasing long-term radon exposure.

Consistency of Radon Levels Over Time

Radon concentrations in groundwater may fluctuate, so periodic retesting can monitor changes.

How Well Depth and Source Type Influence Expectations

Deeper Wells May Show Higher Radon Concentrations

Radon typically increases with depth; wells closer to 320 feet in Pottawatomie aquifer 310WLNG could have elevated levels compared to shallower sources.

Surface Water Sources Generally Have Lower Radon Levels

If your water comes from a surface source rather than a deep well, radon levels are usually lower.

Additional Queries for Non-Residential Water Users

Industrial Users Should Consider Radon Effects on Equipment and Compliance

Commercial operations may face unique risks and regulations related to radon presence in water beyond household concerns.

Water Volume and Flow Rates Affect Treatment Needs

Higher water use or larger systems require tailored treatment approaches to address radon effectively.

Important: What Area Radon Data Does Not Confirm

The area sampling data from Pottawatomie County’s aquifer 310WLNG provides a regional picture and does not specify the radon level in your household water. Only a test of your own water can establish your water’s radon content.

For households seeking treatment, the C-Series Radon in Water Filter ships ready to configure and offers a documented approach to reducing radon from water. Considering its use depends on your own water test results and specific radon concerns.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2011-10-12. 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 310WLNG aquifer (Pottawatomie County): 13 results from 13 wells, median 270.0 pCi/L, range 95.0-3600.0 pCi/L; none above any federal threshold