Radiological Contaminants
The kidney toxin that happens to be radioactive — dissolved silently from the same granite that makes the Hill Country pretty.
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Uranium occurs naturally in granitic rock, and Hill Country wells can dissolve it year-round without a hint at the tap. Counterintuitively, at drinking-water concentrations uranium's main hazard isn't radiation — it's chemical toxicity to the kidneys. The EPA limit is 30 µg/L, set on mass for exactly that reason.
In oxygen-bearing groundwater, uranium travels as a dissolved carbonate complex with a negative charge — which is the key to removing it. Anion-exchange resin captures it efficiently for whole-house treatment; reverse osmosis handles the drinking-water line. (Note the contrast with radium, which is a positive ion and comes out with cation softening — same rock, opposite chemistry, different equipment. This is why the lab report drives the design.)
Uranium keeps family company: wells with uranium often carry radium and radon from the same decay chains. One certified radiological panel — gross alpha, radium 226/228, uranium — answers the whole question, and our forensic water analysis turns the numbers into a system.
Mostly no — at drinking-water levels uranium's primary risk is chemical toxicity to the kidneys, not radioactivity. That's why the EPA limit (30 µg/L) is set on mass, not activity.
Anion exchange and reverse osmosis are the proven tools — uranium in oxygenated groundwater travels as a negatively charged carbonate complex, which is exactly what anion resin grabs.
Yes. Radium, uranium and radon come from the same decay chains in the same rock — where one shows up, the family often follows. One radiological panel answers all of it.
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