Some fluoride compounds, such as sodium fluoride, calcium fluoride, and fluorosilicates, dissolve easily into ground water as it moves through gaps and pore spaces between rocks. Most water supplies contain some naturally occurring fluoride. Fluoride also enters drinking water in discharge from fertilizer or aluminum factories. Also, many communities add fluoride to their drinking water to promote dental health.
If levels are below 0.7 ppm please consult your dentist or oral health care professional. Fluoride has both beneficial and potentially undesirable effects. At 2 ppm or below fluoride provides dental protection. However, some people who drink water containing fluoride in excess of the MCL over many years could get bone disease, including pain and tenderness of the bones. Fluoride in drinking water at half the MCL or more may cause mottling of children's teeth, usually in children less than nine years old. Mottling, also known as dental fluorosis, may include brown staining and/or pitting of the teeth, and occurs only in developing teeth before they erupt from the gums.
MCL ADVISORY - ACTION IS HIGHLY RECOMMENDED
Fluoride levels were detected in your water sample to exceed the maximum contaminant level (MCL).
SMCL ADVISORY - ACTION IS OPTIONAL
Fluoride levels were detected in your water sample to exceed the secondary maximum contaminant level (SMCL).
ACTION IS OPTIONAL
Fluoride levels were detected in your water sample but do not exceed the secondary maximum contaminant level (SMCL). Nationally, the recommended optimum level of fluoride in drinking water has been a range of 0.7-1.2 ppm and in Ohio the recommended range has been 0.8-1.3 ppm. If levels are below the recommended optimum level of 0.7, as proposed by the US Department of Health and Human Services, contact your dentist or oral health care professional.
- Ohio Department of Health - Oral Health - Fluoridation
- Ohio Department of Health - Oral Health - New Fluoridation Recommendations
- USEPA - Water: Drinking Water Contaminants - Drinking Water Contaminants
- USEPA - Water: Basic Information about Regulated Drinking Water Contaminants - Basic Information about Fluoride in Drinking Water
- USEPA - Water: Drinking Water Contaminants - Secondary Drinking Water Regulations: Guidance for Nuisance Chemicals
- ATSDR - Toxic Substances Portal - Fluorides, Hydrogen Fluoride, and Fluorine
- ODH & OEPA Fact Sheet - Fluoride in Ohio's Ground Water
- ATSDR ToxFAQs Fact Sheet - Fluorides, Hydrogen Fluoride, And Fluorine
- Water Systems Council - wellcare® information for you about Well Water & Fluoride