Uranium
EPA MCLG
0 ug/L
EPA's health goal is zero — no known safe level of exposure. This is a goal, not an enforceable limit.
Health Effects
Increased risk of cancer, kidney toxicity
Source: EPA — National Primary Drinking Water Regulations (retrieved 2026-07-27)
On a private well?
This page covers Uranium in public water systems. Private wells are unregulated and not tested by anyone unless you arrange it.
Uranium in private well water →Common Sources
- Erosion of natural deposits
Is your Uranium result safe? Get a free reading
The EPA MCLG for Uranium is 0 ug/L. Upload your water test (PDF or a photo) and we'll email a plain-English reading of where your result lands — and every other number — free. Educational only, no medical claims.
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Upload my testHow to Remove Uranium
How do I get rid of Uranium in drinking water?
For Uranium, the verified treatments are anion exchange and reverse osmosis. Anion exchange is a primary treatment. Uranium is anionic at typical pH; strong-base anion resin removes it well. Reverse osmosis is a primary treatment.
Source: EPA 40 CFR 141.66 BAT (Uranium — ion exchange); EPA 40 CFR 141.66 BAT (Uranium — reverse osmosis)
What filter certification covers Uranium?
Reverse osmosis is certified under NSF/ANSI 58. Anion exchange is a verified method for Uranium but carries no NSF/ANSI certification of its own. Check that the certification listing names Uranium or its group: a certification to a standard is not a certification for every contaminant in it.
Source: EPA 40 CFR 141.66 BAT (Uranium — ion exchange); EPA 40 CFR 141.66 BAT (Uranium — reverse osmosis)
Does a basic water filter pitcher remove Uranium?
No. For Uranium, the verified treatments are anion exchange and reverse osmosis — and a basic pitcher is an activated-carbon device, which is not on that list. No pitcher in our index carries a certification for Uranium, so the jug in the fridge is not the answer here.
Source: EPA 40 CFR 141.66 BAT (Uranium — ion exchange); EPA 40 CFR 141.66 BAT (Uranium — reverse osmosis)
Does boiling water remove Uranium?
No — boiling makes it worse. Uranium is non-volatile and dissolved: the water leaves as steam and it stays behind, so boiling concentrates it in what remains instead of removing it. For Uranium, the verified treatments are anion exchange and reverse osmosis; no thermal method appears in the corpus at all.
Source: EPA 40 CFR 141.66 BAT for radionuclides (reverse osmosis, ion exchange, anion exchange — no thermal method), plus the physical basis that these are non-volatile dissolved solids
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Is Uranium in your water?
Uranium has been recorded above its health guideline in 763 cities, serving 19.8M people. Each system below was judged against a goal of 0 PPM.
Most affected systems, by population served
- Phoenix, AZ1,695,000 people served0.002 PPMgoal 0 PPM
- Las Vegas, NV1,502,604 people served0.002 PPMgoal 0 PPM
- Spring Valley, NV1,502,604 people served0.002 PPMgoal 0 PPM
- Homestead Meadows North, TX747,168 people served0.002 PPMgoal 0 PPM
- Homestead Meadows South, TX747,168 people served0.002 PPMgoal 0 PPM
- Canutillo, TX747,168 people served0.002 PPMgoal 0 PPM
- Westway, TX747,168 people served0.002 PPMgoal 0 PPM
- El Paso, TX747,168 people served0.002 PPMgoal 0 PPM
- Tucson, AZ732,906 people served0.00179 PPMgoal 0 PPM
- Tampa, FL717,000 people served0.000492 PPMgoal 0 PPM
and 753 more cities with a recorded result above the guideline
These are the largest systems that reported a result above the guideline — not the highest results. A city missing from this list has not been shown to be clean: it may have no Uranium result on file at all. We publish a level only where a system reported one.
Check your city or ZIP code for Uranium
Part of a group: radiological contaminants
This contaminant is rarely measured on its own. Radiological contaminants in drinking water covers the whole group — what they are, which limits are enforceable, and where they come from.
Others in this group
About the EPA MCLG
The EPA MCLG is the level of a contaminant in drinking water below which there is no known or expected risk to health. It is a non-enforceable public health goal, and is often stricter than the legal limit (MCL) water systems must meet.
Contaminant Type
Uranium is classified as a Metals contaminant.
Check Your Water
Find out if Uranium is in your tap water.
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