Fluoride Action Network

San Bernardino County: High fluoride levels in drinking water

Source: Public Notice from the East Valley Water District | October 28th, 2010

Note: The East Valley Water District provides water service to San Bernardino and surrounding territory. A full service area map can be viewed at their website .

Flouride [sic] notice from East Valley Water District

East Valley Water District

Public Notice

Published: Thursday, October 28, 2010 5:04 PM CDT

Since August 1996, East Valley Water District has operated under a fluoride variance granted by the California Department of Public Health, which allows the District to serve water with fluoride concentrations up to 3.0 milligrams per liter (mg/l). Under this variance, the District must notify its customers if the fluoride level exceeds 2.0 milligrams per liter (mg/l) in any 3 month (quarter) period during the year.

This is an alert about your drinking water and a cosmetic dental problem that might affect children under nine years of age. At low levels, fluoride can help prevent cavities, but children drinking water containing more than 2 milligrams per liter (mg/l) of fluoride may develop cosmetic discoloration of their permanent teeth (dental fluorosis).

The drinking water provided by your community water system (East Valley Water District) had a fluoride concentration of 2.1 mg/l from June 1, 2010 to September 30, 2010.

Dental fluorosis may result in a brown staining and/or pitting of the permanent teeth. This problem occurs only in developing teeth, before they erupt from the gums. Children under nine should be provided with alternative sources of drinking water or water that has been treated to remove fluoride to avoid the possibility of staining and pitting of their permanent teeth. You may also want to contact your dentist about proper use by young children of fluoride-containing products. Older children and adults may safely drink the water. Drinking water containing more than 4 mg/l of fluoride can increase your risk of developing bone disease.

For more information, please call Ron Buchwald of East Valley Water District at (909) 888-8986. Some home water treatment units are also available to remove fluoride from drinking water. To learn more about available home water treatment units, you may call the California Department of Public Health’s Water Treatment Device Unit at (916) 449-5600.