This water quality report for Coeur d'Alene, Idaho, is based on research done from 2014 to 2023 by the Environmental Working Group (EWG).
Your water source is the Rathdrum Prairie Aquifer, which covers 250 square miles of Idaho.



The city water of Coeur D'Alene tested positive for 15 contaminants. Have questions or concerns? WHS Water has a list of local water experts in your area who can help you understand your specific water chemistry and viable forms of filtration.
Get in contact with local water experts in your area to help you learn about your specific water chemistry. Receive complimentary water testing and analysis. Find what's in your water.
WHS Water Division takes pride in providing extensive drinking water quality data, research, and understanding of your local provider's water quality. If you'd prefer to have your water tested in person, reach out to a local water expert in the Eastern Washington and Northern Idaho area.

Learn about the research and science behind WHS Health Guidelines as a way to fill in the gaps in outdated government standards. WHS guidelines are created to establish standards that prioritize health and safeguard drinking water.
Environmental Working Group (EWG) “EWG’s Tap Water Database: What’s in Your Drinking Water?” 2024 https://www.ewg.org/tapwater/

We partner with local water companies that provide complimentary water testing.
WHS Water Division
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