Uranium

Category: radiological

Written by WaterFilterMatch Editorial TeamApril 2026

EPA MCL

0.03 mg/L

Status

EPA Regulated

NSF Standard

NSF/ANSI 58

Health Effects

Kidney toxicity (nephrotoxicity) with long-term exposure - uranium is a heavy metal that damages the kidneys. Also a radioactive carcinogen, though the chemical toxicity is generally considered a greater concern at typical drinking water levels.

Source: EPA National Primary Drinking Water Regulations

Where It Comes From

Erosion of natural deposits. Uranium is a naturally occurring radioactive element found in certain geological formations, particularly granitic and sedimentary rocks.

Where It's Commonly Found

Groundwater in the western U.S. (especially the Southwest and Rocky Mountain regions), parts of the Great Plains, and New England. Naturally occurring in aquifers with uranium-bearing rock.

Hundreds of community water systems have reported uranium levels near or above the MCL of 30 µg/L. Private wells in uranium-rich geology may have significantly elevated levels.

How to Remove It

Effective Technologies

  • reverse osmosis
  • ion exchange
  • distillation

Does NOT Remove It

  • activated carbon
  • carbon block
  • UV
  • KDF
  • mechanical filtration
  • ceramic

Official Sources

Related Contaminants

Learn More

Check if Uranium is in your water

Enter your ZIP code to see local water quality data and get matched with the right filter.

Enter Your ZIP Code →

Informational guidance based on EPA data and NSF standards - not medical advice.