Government testing by the U.S. Geological Survey sampled multiple wells in St. Clair County’s aquifer 110QRNR, measuring alpha particle activity as an indicator of uranium and radium presence. The recorded median was 1.7 pCi/L, with a range from 0.3 to 3.9 pCi/L across 10 results from 5 wells sampled during summer 2015. None of these samples exceeded federal thresholds, indicating that these levels are within established safety guidelines for this area.
How does the Pentair Uranium & Radium System remove or neutralize these constituents?
The Pentair Uranium & Radium System uses specialized filtration media to reduce uranium and radium concentrations from household water supplies. This technology captures alpha particle activity associated with these radioactive elements, helping to improve water quality. The system's capacity of 32,000 grains supports sustained operation before media replacement is needed. This targeted approach helps manage contaminants identified in the aquifer without altering other water characteristics.
What changes for a large household, a second home, or a seasonal property?
Household water demand impacts how often the system’s media reaches capacity. Larger families or homes with higher water use will require more frequent monitoring of system performance to maintain effectiveness. Seasonal properties may need attention to idle periods, as stagnant water can influence overall water quality differently than continuously used systems. Selecting a treatment solution with adequate capacity and ease of configuration is important to accommodate these varying usage patterns.
What happens when uranium and radium are left untreated over years?
If untreated, uranium and radium may remain present in household water supplies where these elements exist in the source. Their radioactivity can contribute to long-term exposure risk, which some health guidelines consider when evaluating water quality. Over time, untreated water containing these elements might affect water taste or lead to staining. Understanding and addressing these factors supports household water quality management, especially in areas where these constituents are detectable.
What role do plumbing materials and system age play, separate from source water quality?
Plumbing components and their age do not influence uranium or radium presence, as these elements originate in groundwater sources. However, older plumbing may interact with water chemistry differently, potentially affecting aesthetic factors like discoloration or deposits unrelated to radioactive constituents. Assessing both source water conditions and plumbing infrastructure helps clarify water quality concerns and treatment needs.
Why do aesthetic secondary standards differ from health-based limits for uranium and radium?
Aesthetic secondary standards address factors like taste, staining, and corrosivity, which do not constitute direct health risks. Conversely, health-based limits focus on potential radiation exposure and associated long-term effects. For St. Clair County’s aquifer, the government record shows all samples are below federal thresholds, underscoring compliance with health-based standards while aesthetic considerations might still inform treatment choices.
What is the recommended order to rule out concerns, from cheapest check to laboratory test?
Begin with visual and taste evaluations of your water to detect unusual characteristics. Next, consider simple in-home test kits for initial screening. Confirmatory laboratory testing by a certified facility is necessary to measure uranium and radium levels precisely in your own water supply. This step is essential because area-wide data does not represent individual well results. Testing informs whether a treatment system like the Pentair Uranium & Radium System fits your household’s needs.
To summarize, U.S. Geological Survey data from wells 31 to 60 feet deep in St. Clair County’s aquifer 110QRNR measured alpha particle activity linked to uranium and radium, with median values well within federal limits. This publicly available record provides a basis for understanding water quality concerns and exploring treatment options, available at https://waterdata.usgs.gov/monitoring-location/383453089545001/.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2015-08-05. 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 110QRNR aquifer (St. Clair County): 10 results from 5 wells, median 1.7 pCi/L, range 0.3-3.9 pCi/L; none above any federal threshold

