If you observe seasonal or multi-year variation in uranium levels in Pottawatomie County groundwater
The U.S. Geological Survey sampled uranium in 24 wells within the 310WLNG aquifer underlying Pottawatomie County from August 2011 to May 2013. Each well was tested once, at depths ranging from 80 to 320 feet. The uranium concentrations measured ranged from as low as 0.084 micrograms per liter (ug/L) to as high as 383.0 ug/L, with a median concentration of 4.145 ug/L. Since these wells were sampled across a nearly two-year period, the data reflects some natural temporal variation typical of groundwater in this region.
If you observe the range of uranium concentrations relative to federal health standards
It is important to understand that none of these 24 samples exceeded any federal uranium drinking water standard at the time of sampling. The presence of uranium detected in all wells does not itself indicate a safety issue, as all results remained below the enforceable federal threshold. The measured range demonstrates variability but does not confirm that any individual household well is above or near any health-based limit. Only a test of your well water can determine your specific concentration.
If you have a certified laboratory test result for uranium in your household water
A certified laboratory report for uranium will typically provide your sample’s uranium concentration in micrograms per liter (ug/L). This numeric value reflects the amount of uranium present in your water sample. Comparing this number to federal drinking water standards helps determine if a treatment step is recommended. Remember that detection is not a violation; it simply means uranium was measured. Knowing your test result is the only way to establish your water’s uranium level.
If you want to prepare information before seeking advice on uranium-radium water treatment
When considering treatment, document your laboratory test result with the sample date and concentration. Note your household’s daily water usage in gallons per day. Also record details like your well depth and water source type. Providing this information helps select a treatment capacity appropriate for your household's needs.
If you need to decide on the treatment capacity for uranium-radium removal against your household demand
The Autotrol Uranium & Radium System, rated for 32,000 grains capacity, is a documented solution that ships ready to configure for residential use. To determine if this system meets your needs, compare its capacity with the uranium level indicated by your water test and your daily water consumption. A higher uranium concentration or larger water use may require more frequent media replacement or a tailored approach.
In summary, this page outlined how uranium levels vary over time in Pottawatomie County groundwater, what those levels mean against federal standards, how to interpret your lab results, and what information to collect before considering treatment. Knowing your own well’s uranium concentration and household demand is key to deciding on the appropriate water treatment system.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2013-05-01. 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 310WLNG aquifer (Pottawatomie County): 24 results from 24 wells, median 4.145 ug/L, range 0.084-383.0 ug/L; none above any federal threshold
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