Contaminants

Hardness in private well water

Hard water causes scale, appliance wear, and soap inefficiency.

Common limit: No health MCL; >120 mg/L is hardUnit: mg/L as CaCO3

What to do

Consider a softener if scale, dry skin, or appliance buildup is a problem.

Treatment options

  • Water softener
  • Template assisted crystallization

Hardness: Guides by state

Hardness in Alabama

State-specific guide for interpreting results in private wells.

Hardness in Alaska

State-specific guide for interpreting results in private wells.

Hardness in Arizona

State-specific guide for interpreting results in private wells.

Hardness in Arkansas

State-specific guide for interpreting results in private wells.

Hardness in California

State-specific guide for interpreting results in private wells.

Hardness in Colorado

State-specific guide for interpreting results in private wells.

Hardness in Connecticut

State-specific guide for interpreting results in private wells.

Hardness in Delaware

State-specific guide for interpreting results in private wells.

Hardness in District of Columbia

State-specific guide for interpreting results in private wells.

Hardness in Florida

State-specific guide for interpreting results in private wells.

Hardness in Georgia

State-specific guide for interpreting results in private wells.

Hardness in Hawaii

State-specific guide for interpreting results in private wells.

Hardness in Idaho

State-specific guide for interpreting results in private wells.

Hardness in Illinois

State-specific guide for interpreting results in private wells.

Hardness in Indiana

State-specific guide for interpreting results in private wells.

Hardness in Iowa

State-specific guide for interpreting results in private wells.

Hardness in Kansas

State-specific guide for interpreting results in private wells.

Hardness in Kentucky

State-specific guide for interpreting results in private wells.

Hardness in Louisiana

State-specific guide for interpreting results in private wells.

Hardness in Maine

State-specific guide for interpreting results in private wells.

Hardness in Maryland

State-specific guide for interpreting results in private wells.

Hardness in Massachusetts

State-specific guide for interpreting results in private wells.

Hardness in Michigan

State-specific guide for interpreting results in private wells.

Hardness in Minnesota

State-specific guide for interpreting results in private wells.

Hardness in Mississippi

State-specific guide for interpreting results in private wells.

Hardness in Missouri

State-specific guide for interpreting results in private wells.

Hardness in Montana

State-specific guide for interpreting results in private wells.

Hardness in Nebraska

State-specific guide for interpreting results in private wells.

Hardness in Nevada

State-specific guide for interpreting results in private wells.

Hardness in New Hampshire

State-specific guide for interpreting results in private wells.

Hardness in New Jersey

State-specific guide for interpreting results in private wells.

Hardness in New Mexico

State-specific guide for interpreting results in private wells.

Hardness in New York

State-specific guide for interpreting results in private wells.

Hardness in North Carolina

State-specific guide for interpreting results in private wells.

Hardness in North Dakota

State-specific guide for interpreting results in private wells.

Hardness in Ohio

State-specific guide for interpreting results in private wells.

Hardness in Oklahoma

State-specific guide for interpreting results in private wells.

Hardness in Oregon

State-specific guide for interpreting results in private wells.

Hardness in Pennsylvania

State-specific guide for interpreting results in private wells.

Hardness in Rhode Island

State-specific guide for interpreting results in private wells.

Hardness in South Carolina

State-specific guide for interpreting results in private wells.

Hardness in South Dakota

State-specific guide for interpreting results in private wells.

Hardness in Tennessee

State-specific guide for interpreting results in private wells.

Hardness in Texas

State-specific guide for interpreting results in private wells.

Hardness in Utah

State-specific guide for interpreting results in private wells.

Hardness in Vermont

State-specific guide for interpreting results in private wells.

Hardness in Virginia

State-specific guide for interpreting results in private wells.

Hardness in Washington

State-specific guide for interpreting results in private wells.

Hardness in West Virginia

State-specific guide for interpreting results in private wells.

Hardness in Wisconsin

State-specific guide for interpreting results in private wells.

Hardness in Wyoming

State-specific guide for interpreting results in private wells.

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Educational guidance only. Always confirm important decisions with a certified laboratory, local health department, qualified water treatment professional, or clinician.