Water Hardness in Oklahoma Well Water

In Oklahoma, water hardness levels average 84.5 mg/L CaCO3, with a maximum recorded level of 229.03 mg/L CaCO3. The EPA limit is 180 mg/L CaCO3. Currently 2.3% of tested wells exceed this limit, affecting approximately 5,060 wells.

Testing for water hardness in Oklahoma typically costs around $71. If treatment is needed, water treatment systems for water hardness cost approximately $4,345.

The risk level for water hardness in Oklahoma is rated as minimal. The state average of 84.5 mg/L CaCO3 is 38.9% below the national average of 138.229 mg/L CaCO3.