Some water supplies contain naturally-occurring fluoride. Monroe’s does not. Therefore, after a vote of the people in 1992, Everett (City of Monroe’s water supplier) began adding fluoride to the water supply for dental health purposes. In January 2011, the U.S. Department of Health and Human Services proposed reducing the water fluoride concentration target to 0.7 ppm based on recent research. Based on this recommendation, Everett reduced the target fluoride residual in its drinking water to 0.8 ppm, which was the lowest level currently allowed by state regulations at that time. The Washington State Board of Health is adopted 0.7 ppm as the new standard on March 16, 2016. Everett subsequently reduced the target fluoride residual to 0.7 ppm. Information on fluoride in drinking water is available from the Washington State Department of Health.