Fluoride in California Drinking Water
68 public water systems in California have historical EPA violation records associated with fluoride in the Q2 2026 snapshot.
325
Historical Records in California
68
Systems With Records
About Fluoride
- EPA Limit
- 4000 ppb
- Category
- Inorganic
- Health Effects
- Bone disease (pain, tenderness), dental fluorosis in children
- Common Treatment Approaches
- Reverse osmosis, activated alumina
California Systems With the Most Fluoride Records
San Felipe Pueblo
4,335 served1 historical record
A
Acoma Main
2,374 served1 historical record
D
These counts describe historical compliance records, not present concentrations or household test results. Confirm current conditions with the utility's latest Consumer Confidence Report.