Water Hardness in Maryland Well Water

In Maryland, water hardness levels average 158.36 mg/L CaCO3, with a maximum recorded level of 275.83 mg/L CaCO3. The EPA limit is 180 mg/L CaCO3. Currently 11.8% of tested wells exceed this limit, affecting approximately 56,640 wells.

Testing for water hardness in Maryland typically costs around $43. If treatment is needed, water treatment systems for water hardness cost approximately $4,177.

The risk level for water hardness in Maryland is rated as moderate. The state average of 158.36 mg/L CaCO3 is 14.6% above the national average of 138.229 mg/L CaCO3.