Nitrate in Colorado Well Water

In Colorado, nitrate levels average 1.959 mg/L, with a maximum recorded level of 7.172 mg/L. The EPA limit is 10 mg/L. Currently 11.0% of tested wells exceed this limit, affecting approximately 38,500 wells.

Testing for nitrate in Colorado typically costs around $105. If treatment is needed, water treatment systems for nitrate cost approximately $211.

The risk level for nitrate in Colorado is rated as moderate. The state average of 1.959 mg/L is 54.8% below the national average of 4.332 mg/L.