Interpreting Government Sampling Data on Uranium in Kennebec County
The U.S. Geological Survey collected groundwater samples from four different wells tapping the bedrock aquifer in Kennebec County during September 2011. Uranium was detected in all four wells, with concentrations ranging from 1.3 to 6.5 micrograms per liter (µg/L), and a median value of 2.6 µg/L. These wells were between 164 and 320 feet deep. It's important to understand this data reflects regional bedrock aquifer conditions and does not represent any single household's water quality.
How These Uranium Concentrations Relate to Federal Standards
The uranium concentrations noted in this regional sampling are all below the federal Maximum Contaminant Level (MCL) for uranium in drinking water. This means based on this data, there is no regulatory exceedance in the bedrock aquifer across these sampled locations. However, the presence of uranium, even at these detected levels, suggests monitoring and treatment considerations if your own water tests differently.
Clarifying Terms: Median, Range, and Detection in Water Sampling
The term 'detected' indicates the uranium was measurable by the instruments used during sampling; it does not imply any safety violation or health risk. The 'median' value represents the middle measurement when all samples are ranked by uranium concentration, which helps summarize typical uranium presence regionally. The 'range' shows the lowest and highest uranium values recorded across the sampled wells, illustrating natural variability in the aquifer.
Water Quality Changes with the Pentair Uranium & Radium System
Water treated with the Pentair Uranium & Radium System is configured to reduce uranium and radium concentrations before water reaches taps. The system has a grain capacity of 32,000, signifying its capability to treat a substantial volume of water. This treatment reduces uranium content, helping improve water clarity and reducing potential long-term mineral buildup.
Immediate Effects on Household Fixtures and Appliance Performance
Fixtures such as faucets, showerheads, and appliances that process water can experience mineral staining and scaling due to untreated uranium and radium presence over time. Using the Pentair system helps protect these components by lowering the mineral content that contributes to deposits, improving water flow and fixture longevity.
Long-Term Consequences of Untreated Uranium and Radium in Residential Water
Without treatment, uranium and radium in well water can accumulate mineral deposits in piping and water-using appliances, leading to maintenance challenges. Over many years, this may increase operational inefficiencies and repair needs. Understanding and addressing uranium presence helps maintain household water systems in good condition.
This summary reflects the U.S. Geological Survey's September 2011 sampling of four separate bedrock aquifer wells in Kennebec County, Maine. For detailed data, please consult the USGS water-quality monitoring location 442857069282801.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2011-09-29. 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 Uranium in the BEDROCK aquifer (Kennebec County): 4 results from 4 wells, median 2.6 ug/L, range 1.3-6.5 ug/L; none above any federal threshold
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