Water Hardness in Tennessee Well Water

In Tennessee, water hardness levels average 196.76 mg/L CaCO3, with a maximum recorded level of 332.37 mg/L CaCO3. The EPA limit is 180 mg/L CaCO3. Currently 25.1% of tested wells exceed this limit, affecting approximately 105,420 wells.

Testing for water hardness in Tennessee typically costs around $91. If treatment is needed, water treatment systems for water hardness cost approximately $672.

The risk level for water hardness in Tennessee is rated as high. The state average of 196.76 mg/L CaCO3 is 42.3% above the national average of 138.229 mg/L CaCO3.