Chloride in Washington Well Water

In Washington, chloride levels average 74.869 mg/L, with a maximum recorded level of 338.951 mg/L. The EPA limit is 250 mg/L. Currently 3.3% of tested wells exceed this limit, affecting approximately 15,840 wells.

Testing for chloride in Washington typically costs around $116. If treatment is needed, water treatment systems for chloride cost approximately $3,845.

The risk level for chloride in Washington is rated as low. The state average of 74.869 mg/L is 34.8% below the national average of 114.869 mg/L.