For the first time in nearly 10 years, the city of Buffalo will have fluoride in its water again.

Water board officials say they met with the Colonel Ward Pumping Station on Friday to confirm the fluoridation project was complete and met all of its standards.

The city will reintroduce fluoride into the water supply on Tuesday. Buffalo Water will then monitor the new system during the next few weeks to make sure the process is done safely and to the highest quality.

“The successful completion of Buffalo Water’s fluoridation project marks a significant milestone for Buffalo Water,” said Buffalo Water Board Chairman Oluwole McFoy. “Buffalo Water is committed to providing safe and affordable drinking water to City of Buffalo residents. With the Department of Health’s approval, we are confident that the new system will allow Buffalo Water to continue providing high-quality water to the City of Buffalo.”

People criticized the city when they found out it had stopped fluoridating the water in 2015.

Since then, several families joined a class action lawsuit stating the city violated the Green Amendment, a law that gives New Yorkers the right to a healthy environment. A spokesperson for the city said they do not comment on pending litigation.