Nitrate in Hawaii Well Water

In Hawaii, nitrate levels average 1.522 mg/L, with a maximum recorded level of 7.13 mg/L. The EPA limit is 10 mg/L. Currently 1.2% of tested wells exceed this limit, affecting approximately 1,440 wells.

Testing for nitrate in Hawaii typically costs around $73. If treatment is needed, water treatment systems for nitrate cost approximately $1,101.

The risk level for nitrate in Hawaii is rated as minimal. The state average of 1.522 mg/L is 64.9% below the national average of 4.332 mg/L.