Uranium in California Drinking Water
63 public water systems in California have historical EPA violation records associated with uranium in the Q2 2026 snapshot.
434
Historical Records in California
63
Systems With Records
About Uranium
- EPA Limit
- 30 ppb
- Category
- Radionuclides
- Health Effects
- Increased cancer risk, kidney toxicity
- Common Treatment Approaches
- Ion exchange, reverse osmosis
California Systems With the Most Uranium Records
Nambe Pueblo
800 served8 historical records
D
Acoma Main
2,374 served3 historical records
D
Ponca Tribe Of Oklahoma
360 served2 historical records
B
Ohkay Owingeh
2,200 served1 historical record
B
These counts describe historical compliance records, not present concentrations or household test results. Confirm current conditions with the utility's latest Consumer Confidence Report.