The Madison Water Utility Board affirmed its support for keeping fluoride in the city’s water supply Tuesday night, approving a slightly tweaked policy after a review process.
The board endorsed the policy on a 4-1 vote, spokeswoman Amy Barrilleaux said, after a lengthy public comment period that included supporters and opponents of fluoridation.
Madison has had fluoride in its water since 1948.
A June report by Public Health Madison and Dane County said fluoridation helps promote oral health by preventing tooth decay, particularly among poor residents.
When it last reviewed and approved the city’s fluoride policy in 2009, the Water Utility Board ordered another review in five years.
After reviewing the policy this year, the board made some small changes, Barrilleaux said.
One difference was that, while the previous policy indicated fluoride could be present in the water supply at levels between 0.7 and 1.2 parts per million, the policy approved Tuesday called for only a level of 0.7 parts per million, Barrilleaux said. That change will have little practical effect, though, because the city already kept fluoride at that level, she said.
The board will next review its fluoridation policy in 10 years, Barrilleaux said, unless there is reason to hold such a review sooner.