Chloride in New Hampshire Well Water

In New Hampshire, chloride levels average 156.247 mg/L, with a maximum recorded level of 587.705 mg/L. The EPA limit is 250 mg/L. Currently 4.4% of tested wells exceed this limit, affecting approximately 14,960 wells.

Testing for chloride in New Hampshire typically costs around $143. If treatment is needed, water treatment systems for chloride cost approximately $2,833.

The risk level for chloride in New Hampshire is rated as low. The state average of 156.247 mg/L is 36.0% above the national average of 114.869 mg/L.