Nitrate in Maryland Well Water

In Maryland, nitrate levels average 3.992 mg/L, with a maximum recorded level of 17.094 mg/L. The EPA limit is 10 mg/L. Currently 2.4% of tested wells exceed this limit, affecting approximately 11,520 wells.

Testing for nitrate in Maryland typically costs around $133. If treatment is needed, water treatment systems for nitrate cost approximately $1,381.

The risk level for nitrate in Maryland is rated as minimal. The state average of 3.992 mg/L is 7.8% below the national average of 4.332 mg/L.