Arsenic in Hawaii Well Water

In Hawaii, arsenic levels average 4.878 ppb, with a maximum recorded level of 13.654 ppb. The EPA limit is 10 ppb. Currently 7.3% of tested wells exceed this limit, affecting approximately 8,760 wells.

Testing for arsenic in Hawaii typically costs around $139. If treatment is needed, water treatment systems for arsenic cost approximately $2,097.

The risk level for arsenic in Hawaii is rated as low. The state average of 4.878 ppb is 15.0% above the national average of 4.243 ppb.