If you want to start with simple, cost-effective steps to assess your water quality
San Bernardino County’s groundwater comes from an aquifer sampled extensively by the U.S. Geological Survey. Between 2011 and 2026, 141 wells ranging from 3 to 1390 feet deep were tested for uranium, showing a median concentration around 4.865 micrograms per liter, with values ranging from 0.016 to 76.2 micrograms per liter. Although uranium was detected in 184 results, none exceeded federal health-based thresholds. This indicates that while uranium presence is common in the aquifer, it does not establish unsafe levels by itself.
To determine if your home’s water matches these area trends and requires additional treatment beyond what your current system handles, begin with household-level checks: observe any staining, changes in water taste, or hardware corrosion. These clues suggest the need for detailed lab testing but are not definitive for uranium or radium presence. Because regional data cannot substitute for your own well or tap water test, collecting a certified laboratory analysis targeting uranium and radium is the essential next step.
If you want to understand how treatment technology removes uranium and radium from your water supply
The Fleck Uranium & Radium System uses advanced ion exchange technology to reduce these elements effectively. Featuring a grain capacity of 32,000, this system is designed to handle the scale and variability found in San Bernardino County’s aquifer. It operates by exchanging unwanted uranium and radium ions with harmless alternatives, capturing contaminants and preventing them from reaching your taps. The system ships ready to configure, giving you the option to address elevated concentrations that your existing equipment may not fully control.
If you want to know how public water system records differ from private well water testing
Area records from the USGS provide groundwater sampling data from multiple wells over time but do not convey specific concentrations in any individual well or household system. These records serve as a regional overview rather than a direct assessment of your water quality. Public system records typically document compliance with health standards, and for San Bernardino County, there have been no measured results surpassing federal uranium safety limits. Private wells may vary widely depending on depth, geology, and local conditions, requiring individual testing to confirm the actual contaminant levels present.
If you want to see how treated water differs at the tap after applying specialized uranium and radium removal
With the Fleck Uranium & Radium System operating correctly, treated water is expected to show significantly reduced uranium and radium concentrations, improving taste and reducing staining risks. Although the system does not alter the aesthetic qualities governed by secondary standards, it targets the primary contaminants effectively. This results in a water supply more consistent with health-based guidelines and better suited for household use. The difference is most noticeable when your previous system could not keep pace with uranium and radium removal demands.
If you want to understand how sample depth, well depth, or source type influence expectations for uranium and radium in your water
Sampled wells in San Bernardino County range from shallow to deep: depths between 3 and 1390 feet were tested. Uranium concentrations may vary with depth, geological formations, and local aquifer characteristics. Generally, deeper wells can encounter different mineral profiles that may raise or lower uranium and radium presence compared to shallower sources. Knowing your well’s depth and type is crucial when interpreting sampling data and anticipating water treatment needs.
If you want to distinguish aesthetic secondary standards from health-based limits for uranium and radium
Secondary standards govern factors affecting taste, staining, and corrosion but do not represent safety thresholds. For uranium and radium, federal health-based limits are the primary regulatory measure, and no sampled well in this region exceeded these limits. However, secondary standards may inform considerations related to household plumbing longevity and water appearance. Recognizing the difference helps you make informed decisions about whether enhanced treatment is necessary beyond basic aesthetic concerns.
For households in San Bernardino County whose existing uranium-radium control equipment is not sufficient, the Fleck Uranium & Radium System offers a documented solution with a 32,000 grain capacity to meet elevated demands. It ships ready to configure, enabling you to tailor treatment to your water’s specific uranium and radium challenge as confirmed by laboratory analysis.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2026-05-06. 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 aquifer (San Bernardino County): 191 results from 141 wells, median 4.865 ug/L, range 0.016-76.2 ug/L; none above any federal threshold
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