Fluoride in Washington Well Water

In Washington, fluoride levels average 1.333 mg/L, with a maximum recorded level of 4.491 mg/L. The EPA limit is 4 mg/L. Currently 8.1% of tested wells exceed this limit, affecting approximately 38,880 wells.

Testing for fluoride in Washington typically costs around $83. If treatment is needed, water treatment systems for fluoride cost approximately $2,153.

The risk level for fluoride in Washington is rated as moderate. The state average of 1.333 mg/L is 24.7% below the national average of 1.771 mg/L.