Copper in New Hampshire Well Water

In New Hampshire, copper levels average 0.267 mg/L, with a maximum recorded level of 1.21 mg/L. The EPA limit is 1.3 mg/L. Currently 9.4% of tested wells exceed this limit, affecting approximately 31,960 wells.

Testing for copper in New Hampshire typically costs around $88. If treatment is needed, water treatment systems for copper cost approximately $383.

The risk level for copper in New Hampshire is rated as moderate. The state average of 0.267 mg/L is 54.0% below the national average of 0.581 mg/L.