This week, you need to decide how to address radon in your household water after your existing equipment has failed.
How does seasonal or multi-year variation show in the Taos County radon record?
The U.S. Geological Survey collected radon-222 samples from five wells in Taos County's aquifer S100RIOGRD between July 2014 and July 2015. These samples, taken at depths between 100 and 500 feet, show radon concentrations detected in all measurements. The reported values ranged from 2,200 to 6,600 picocuries per liter (pCi/L), with a median of 4,400 pCi/L. Although this data covers just one year, it reflects some variation in radon levels over that period. Such changes could be due to seasonal factors or natural fluctuations in groundwater. However, this dataset does not provide information beyond mid-2015 and cannot predict future trends.
How do public aquifer records differ from private well testing in what they establish?
Area-wide government sampling provides a useful overview of radon levels across multiple wells in Taos County's aquifer but does not indicate the radon concentration in any individual private well. Each home’s water source may differ significantly. Only a certified laboratory test performed on a sample from your own well can determine your water’s actual radon concentration. Public records do not replace this personalized testing, nor do they reveal if your well’s radon content is higher or lower than the regional range.
What household or facility symptoms do and do not point to radon in water?
Radon in water is an odorless and colorless radioactive gas, so it does not cause obvious water taste or smell changes. It does not produce staining or visible deposits. Symptoms such as respiratory irritation or unusual odors in water are unlikely to be caused directly by radon. If your existing equipment for radon treatment has failed, you might notice these symptoms persist or worsen, but they could also arise from other issues. Therefore, symptoms alone are insufficient to diagnose radon presence in your water.
What does a certified laboratory test for radon in water report, and how do you read it?
A certified laboratory report on radon-222 in water will provide a quantified measurement expressed as picocuries per liter (pCi/L). This value represents the amount of radon gas in your water sample. The lab will specify the sample collection date and may include detection limits. Reading the report involves comparing your well’s radon concentration to the observed area range (2,200 to 6,600 pCi/L) and considering federal guidelines. None of the government samples from Taos County wells exceeded federal limits, which can provide context but do not directly indicate your well’s quality. Regular testing is necessary for reliable, personalized information.
How can a Taos County homeowner interpret the median and range of radon measurements?
Imagine your own well’s radon level is somewhere within the documented area range: between 2,200 and 6,600 pCi/L. The median value of 4,400 pCi/L suggests that half the samples were above and half below this point. Since all five sampled wells showed detectable radon and none exceeded federal thresholds, it indicates that radon is consistently present within this range in the regional aquifer. However, your household experience depends on your well’s specific reading. Knowing this range helps you set expectations and recognize when your test falls higher or lower than typical area values.
Which household fixtures, appliances, or processes show radon impact first and why?
Radon released from water primarily enters indoor air during activities involving water agitation or heating. Fixtures such as showers, faucets, dishwashers, and clothes washers can release radon gas when water sprays or splashes. Radon inhalation risk indoors is generally considered the main concern rather than ingestion. Detecting changes related to radon may occur first near these water use points. Addressing radon in water before it reaches these household outlets is essential for reducing airborne radon exposure.
What you should NOT conclude from area data: The government radon measurements provide valuable information about the regional aquifer but do not identify the exact radon level in your private well. Detection in the area does not imply that any specific well is unsafe or surpasses regulatory limits. To understand your home’s water radon condition accurately, obtain a certified laboratory test of your own water supply. If your previous treatment equipment for radon has failed, the Pentair Radon in Water Filter system ships ready to configure and is documented to reduce radon from household water sources effectively.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2015-07-13. 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 S100RIOGRD aquifer (Taos County): 5 results from 5 wells, median 4400.0 pCi/L, range 2200.0-6600.0 pCi/L; none above any federal threshold
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