How Uranium-Radium Is Different from Similar Water Concerns

Uranium and radium occur naturally in many groundwater sources, including those in Waupaca County. They are often confused with other minerals or contaminants because of their origin, but they are distinct in their chemical properties and behavior in water. Unlike some common water issues such as iron staining or hardness, uranium and radium are radioactive elements that require different testing and treatment approaches.

Long-Term Effects of Leaving Uranium and Radium Untreated

If uranium and radium are present in household water over many years, they can lead to gradual accumulation in plumbing systems and appliances. While government sampling in this area shows levels below regulatory thresholds, untreated radioactive elements can contribute to increased background radiation exposure inside the home. Addressing these elements helps reduce potential impacts on plumbing and water use efficiency.

Reading the Groundwater Sampling Record for Uranium in Waupaca County

The U.S. Geological Survey collected 21 samples from 14 wells within the Waupaca County aquifer 100SDGV between 2011 and 2024. Concentrations of uranium ranged from 0.011 to 5.44 micrograms per liter, with a median of 0.613 micrograms per liter. Most samples detected uranium, except one that was below the reporting limit. These samples came from wells ranging in depth from 19 to 172 feet. Understanding what these figures mean can help homeowners decide if further testing of their own water is warranted.

How These Uranium Levels Compare to Federal Standards—and What They Don’t Indicate

The entire sample set showed uranium concentrations below federal action levels. This means the measurements taken did not exceed any thresholds set for health-based drinking water standards. However, these regional figures do not represent individual well water quality, which varies and requires testing specific to each household. The presence of uranium within this range is not a violation and does not mean the water is unsafe by itself.

Sample Size and Its Impact on Understanding Uranium-Radium in This Area

Data comes from 21 samples across 14 wells, which gives a moderate snapshot of the uranium presence in the aquifer 100SDGV but is not comprehensive for every location or depth within Waupaca County. Variability in uranium concentrations can be influenced by geology, well depth, and local conditions. Homeowners should consider personal water testing to determine their own water's uranium and radium content rather than rely solely on regional data.

Clarifying Terms: Detected, Median, and Range in Uranium Sampling

• Detected means that the sampling equipment measured a concentration of uranium above the minimum threshold of reporting.
• Median refers to the middle value of all measured samples, indicating that half the samples had uranium levels above this value and half below.
• Range shows the lowest and highest uranium concentrations found among the collected samples, outlining the variability within the region.

These terms describe the sampling results but do not imply problems at any individual well or faucet.

Addressing Uranium and Radium in Your Household Water

To manage uranium and radium at home, a specialized water treatment system is often used. The C-Series Uranium & Radium System is specifically designed to handle radioactive elements like these. It ships ready to configure and has a treatment capacity rated for 32,000 grains, aligning with typical residential water use. Measuring your household’s uranium and radium levels through private laboratory testing can inform how much capacity is needed for effective treatment.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2024-09-09. 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 100SDGV aquifer (Waupaca County): 21 results from 14 wells, median 0.613 ug/L, range 0.011-5.44 ug/L; none above any federal threshold