Are uranium and radium the cause of your household water concerns in CT? Based on U.S. Geological Survey groundwater sampling from 2017, this page explains the area measurements for FIPS 110, aquifer 112DFSF, and what you can and cannot conclude about your own well water from this data.
Myth: Uranium and radium levels remain constant year-round in this aquifer
The record from 18 wells sampled between April and September 2017 shows that alpha particle activity, which indicates uranium and radium presence, varied between 0.4 and 21.0 pCi/L with a median of 1.3 pCi/L. This range over several months suggests some seasonal or multi-year variation in these constituents in the groundwater of this area.
Myth: All wells in the aquifer have the same uranium-radium levels regardless of depth
The sampled wells ranged in depth from 10 to 155 feet, demonstrating that uranium-radium detection is consistent across different well depths in this aquifer. However, exact levels can differ with depth due to geological variations, so depth is a factor in what you might expect but does not predict a specific concentration.
Myth: You can identify uranium-radium water issues without lab testing
Initial steps include checking your water for signs like staining or taste changes, but these do not confirm uranium or radium presence. To accurately know your water’s uranium-radium levels, a certified laboratory test of your specific well or water source is necessary, since area sampling reflects general conditions, not individual wells.
Myth: Any detected uranium-radium level above zero is a violation of federal standards
All 36 samples detected alpha particle activity, yet none exceeded federal thresholds for radiation in drinking water. Detection simply means measurable presence, not a violation or unsafe condition. The regulatory limits define levels above which health concerns may arise; the measured range for this area remains below those limits.
Myth: Public water system data will directly represent private well conditions
Public water system records often have regular monitoring and compliance data, but this area data comes from private well sampling and shows groundwater quality before treatment or blending. Your household water may differ due to source, treatment, or distribution; private well testing is required to understand your specific water.
Myth: Treatment capacity can be estimated without considering household water use
Treatment systems like the Fleck Uranium & Radium System, with a 32,000-grain capacity, must be matched to your household’s water demand to function effectively. Knowing your daily water usage and uranium-radium levels from testing helps ensure the chosen system meets your needs without overuse or unnecessary expense.
While the U.S. Geological Survey data for FIPS 110 in CT’s 112DFSF aquifer provides a helpful overview of uranium-radium presence, it does not reveal your own well’s water quality or imply a health risk. Testing your water is the essential step before selecting treatment. The Fleck Uranium & Radium System ships ready to configure for direct purchase and is designed to reduce uranium and radium to help protect your household water supply once you know your specific water quality.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2017-09-05. 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 Alpha particle in the 112DFSF aquifer (FIPS 110): 36 results from 18 wells, median 1.3 pCi/L, range -0.4-21.0 pCi/L; none above any federal threshold
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