Contaminants

Chloride in private well water

High chloride can taste salty and corrode plumbing.

Common limit: 250 mg/L secondary standardUnit: mg/L

What to do

Investigate road salt, seawater intrusion, or brine sources when chloride is elevated.

Treatment options

  • Reverse osmosis
  • Distillation
  • Source investigation

Chloride: Guides by state

Chloride in Alabama

State-specific guide for interpreting results in private wells.

Chloride in Alaska

State-specific guide for interpreting results in private wells.

Chloride in Arizona

State-specific guide for interpreting results in private wells.

Chloride in Arkansas

State-specific guide for interpreting results in private wells.

Chloride in California

State-specific guide for interpreting results in private wells.

Chloride in Colorado

State-specific guide for interpreting results in private wells.

Chloride in Connecticut

State-specific guide for interpreting results in private wells.

Chloride in Delaware

State-specific guide for interpreting results in private wells.

Chloride in District of Columbia

State-specific guide for interpreting results in private wells.

Chloride in Florida

State-specific guide for interpreting results in private wells.

Chloride in Georgia

State-specific guide for interpreting results in private wells.

Chloride in Hawaii

State-specific guide for interpreting results in private wells.

Chloride in Idaho

State-specific guide for interpreting results in private wells.

Chloride in Illinois

State-specific guide for interpreting results in private wells.

Chloride in Indiana

State-specific guide for interpreting results in private wells.

Chloride in Iowa

State-specific guide for interpreting results in private wells.

Chloride in Kansas

State-specific guide for interpreting results in private wells.

Chloride in Kentucky

State-specific guide for interpreting results in private wells.

Chloride in Louisiana

State-specific guide for interpreting results in private wells.

Chloride in Maine

State-specific guide for interpreting results in private wells.

Chloride in Maryland

State-specific guide for interpreting results in private wells.

Chloride in Massachusetts

State-specific guide for interpreting results in private wells.

Chloride in Michigan

State-specific guide for interpreting results in private wells.

Chloride in Minnesota

State-specific guide for interpreting results in private wells.

Chloride in Mississippi

State-specific guide for interpreting results in private wells.

Chloride in Missouri

State-specific guide for interpreting results in private wells.

Chloride in Montana

State-specific guide for interpreting results in private wells.

Chloride in Nebraska

State-specific guide for interpreting results in private wells.

Chloride in Nevada

State-specific guide for interpreting results in private wells.

Chloride in New Hampshire

State-specific guide for interpreting results in private wells.

Chloride in New Jersey

State-specific guide for interpreting results in private wells.

Chloride in New Mexico

State-specific guide for interpreting results in private wells.

Chloride in New York

State-specific guide for interpreting results in private wells.

Chloride in North Carolina

State-specific guide for interpreting results in private wells.

Chloride in North Dakota

State-specific guide for interpreting results in private wells.

Chloride in Ohio

State-specific guide for interpreting results in private wells.

Chloride in Oklahoma

State-specific guide for interpreting results in private wells.

Chloride in Oregon

State-specific guide for interpreting results in private wells.

Chloride in Pennsylvania

State-specific guide for interpreting results in private wells.

Chloride in Rhode Island

State-specific guide for interpreting results in private wells.

Chloride in South Carolina

State-specific guide for interpreting results in private wells.

Chloride in South Dakota

State-specific guide for interpreting results in private wells.

Chloride in Tennessee

State-specific guide for interpreting results in private wells.

Chloride in Texas

State-specific guide for interpreting results in private wells.

Chloride in Utah

State-specific guide for interpreting results in private wells.

Chloride in Vermont

State-specific guide for interpreting results in private wells.

Chloride in Virginia

State-specific guide for interpreting results in private wells.

Chloride in Washington

State-specific guide for interpreting results in private wells.

Chloride in West Virginia

State-specific guide for interpreting results in private wells.

Chloride in Wisconsin

State-specific guide for interpreting results in private wells.

Chloride 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.