There have been some recent developments regarding community water fluoridation. The new optimal level of fluoride in drinking water as recommended by the U.S. Centers for Disease Control and Prevention (CDC), is now 0.7 ppm (parts per million) - was previously 1.0 ppm. The Westford Board of Health voted to accept this new optimal fluoride level. Accordingly, the Westford Water Department (WWD) is now adding fluoride to the drinking water supply at the new optimal level of 0.7 ppm.