Nitrate in Delaware Well Water

In Delaware, nitrate levels average 1.284 mg/L, with a maximum recorded level of 3.698 mg/L. The EPA limit is 10 mg/L. Currently 12.8% of tested wells exceed this limit, affecting approximately 10,880 wells.

Testing for nitrate in Delaware typically costs around $124. If treatment is needed, water treatment systems for nitrate cost approximately $2,357.

The risk level for nitrate in Delaware is rated as moderate. The state average of 1.284 mg/L is 70.4% below the national average of 4.332 mg/L.