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How to find out how much fluoride is in your water

If you receive your tap water from a local water utility, you can find out its fluoride content.  Click on a county on the map, or select a county from the list below to view information on the community water systems in that county. The number of persons served and the fluoride content of each system are provided. Currently, the optimum recommended level of fluoride in drinking water in Ohio to prevent tooth decay is 1.0 part per million (ppm) or 1.0 mg/L. Recently, the U.S. Department of Health and Human Services proposed changing the optimum level of fluoride in drinking water to 0.7 ppm or 0.7 mg/L. More information is available about the proposed recommendation

If you receive your tap water from a private well, a laboratory will need to analyze a sample of your water to determine the fluoride content. Click here to find out how to have your water tested for the fluoride content.

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Clark
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Delaware
Erie

Fairfield
Fayette
Franklin
Fulton
Gallia
Geauga
Greene
Guernsey
Hamilton
Hancock
Hardin
Harrison
Henry
Highland
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Holmes
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Jackson
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Licking
Logan
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Monroe
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Morgan
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Pike
Portage
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Ross
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Seneca
Shelby
Stark
Summit
Trumbull
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Union
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Vinton
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Washington
Wayne
Williams
Wood
Wyandot

Last Updated: 10/28/13

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