Water Hardness in Iowa Well Water

In Iowa, water hardness levels average 209.16 mg/L CaCO3, with a maximum recorded level of 435.93 mg/L CaCO3. The EPA limit is 180 mg/L CaCO3. Currently 10.2% of tested wells exceed this limit, affecting approximately 29,580 wells.

Testing for water hardness in Iowa typically costs around $148. If treatment is needed, water treatment systems for water hardness cost approximately $4,051.

The risk level for water hardness in Iowa is rated as moderate. The state average of 209.16 mg/L CaCO3 is 51.3% above the national average of 138.229 mg/L CaCO3.