Understanding Radon Test Reports from Certified Laboratories

Certification and Method

A certified laboratory test for radon in water reports results measured in picocuries per liter (pCi/L). This figure indicates the concentration of radon-222 found during sampling.

Interpreting Median and Range

For Grant County's aquifer N600CMBPLV, government testing showed three samples from wells between 335 and 1240 feet deep. Results ranged from 242.0 to 550.0 pCi/L, with a median of 370.0 pCi/L. Understanding these values provides context for local radon presence but does not directly define your home's water.

Absence of Exceedances

None of the sampled wells in this area recorded radon levels above federal thresholds, indicating no regulated exceedance in these samples.

Critical Notes to Record Before Seeking Treatment Advice

Your Own Water Test Results

The most important data to have is your home's specific water test for radon concentration, conducted by an accredited laboratory.

Well Depth and Water Source Details

Record the depth of your well and whether it draws from aquifer N600CMBPLV or a different source, as these factors influence radon levels.

Existing Water Treatment Equipment

Note any current water treatment processes or equipment your household uses, to understand compatibility and potential adjustments.

Comparing Grant County Radon Data with Neighboring Areas Carefully

Recognize Spatial Variability

Radon concentrations can vary greatly across regions; neighboring counties may have different aquifers or geological conditions, so comparisons should be cautious and contextual.

Use Median and Range, Not Single Values

Look at the range and median values from multiple well samples, not isolated test results, to avoid overinterpreting a single measurement.

Consider Sampling Depths

Sampling depths in Grant County ranged from about 335 to 1240 feet; differences in well depth between counties affect radon readings.

Step-by-Step Approach to Confirming Radon Presence and Need for Treatment

Start with Visual and Taste Checks

Though not definitive, noticing any unusual water taste or odor can prompt more formal testing.

Test Your Water for Radon Concentration

Order a laboratory radon test specific to your well water to establish your household’s radon level accurately.

Evaluate Other Potential Water Concerns

Rule out other water quality issues using tests before deciding on radon-specific treatment.

How Radon Reaches Groundwater in Grant County’s Aquifer N600CMBPLV

Natural Decay of Uranium and Radium in Bedrock

Radon-222 arises naturally from decay of uranium and radium present in local bedrock formations feeding this aquifer.

Groundwater Movement Brings Radon into Wells

Radon gas dissolves into groundwater as it moves through fractures and porous rock, leading to measurable concentrations in deep wells.

Depth of Wells Influences Radon Presence

Wells drawing from deeper parts of the aquifer tend to have detectable radon levels as confirmed by government sampling.

When a test confirms radon in your well water and you determine treatment is needed for your measured levels, the Fleck Radon in Water Filter ships ready to configure as a proven solution addressing this demand directly.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2016-07-28. 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 N600CMBPLV aquifer (Grant County): 3 results from 3 wells, median 370.0 pCi/L, range 242.0-550.0 pCi/L; none above any federal threshold