Miami-Dade commission votes to end adding fluoride to county drinking water

The Miami‑Dade County Commission voted on April 7 to stop adding fluoride to drinking water produced by Miami‑Dade Water and Sewer Department (WASD), directing the mayor and department staff to implement the change and to manage related contract, operational and customer‑notification steps.

The vote followed a lengthy public comment period and a broad debate on the health tradeoffs of fluoridation, including testimony from pediatric and dental societies supporting fluoridation and from community groups and clinicians urging removal because of recent research and a recent federal court order asking the Environmental Protection Agency to reassess the chemical’s safety.

Commissioner Willy G. Gonzales, the sponsor, framed the measure as a precautionary, public‑health decision rooted in evolving scientific evidence and concern for infants, pregnant women and communities who cannot choose their exposure. The board heard more than two hours of public comments that included pediatric dentists who urged retaining fluoridation and community advocates who argued it is an involuntary mass medication with uncertain neurodevelopmental risks.

The measure directs the mayor to stop adding fluoride at WASD treatment facilities that supply county customers and to coordinate notice with wholesale customers that receive treated county water. Commissioners added direction that notification be included in regular water billing and on the county website rather than a new, separate public‑education advertising campaign; they also directed staff to inventory existing fluoride supplies and contracts so the department can manage the operational unwind.

County staff, including WASD leadership, told commissioners the utility meets or exceeds federal and state drinking water standards and that stopping fluoridation would not affect the water’s basic suitability for consumption. The board received a brief statement from the Florida Surgeon General, who said the body must weigh available evidence and prudently guard populations at potential risk while noting that questions remain in the scientific record.

The vote passed as presented on the floor after amendments; commissioners debated procedure, potential contractual obligations with municipal wholesale customers and the scope of notice and outreach. Several commissioners said they favored deferring the decision to a committee hearing and to await state or federal action, but the motion carried and the change was adopted.

Commissioners did not direct a fixed reintroduction timeline; multiple speakers noted that any future policy change could be revisited if federal or state agencies issue new guidance. The board left follow‑up tasks to the mayor’s office and WASD, including: inventorying existing fluoride chemicals and related supplies, reviewing WASD wholesale contracts for notice or service implications, preparing customer notification via bill inserts and the county website, and returning to the commission with updates on implementation and any legal or contractual impacts.

The commission’s action applies to water treated by Miami‑Dade Water and Sewer Department for the county’s wholesale customers; municipalities that operate independent treatment plants are not automatically affected by the vote and must decide their own policies.

Implementation steps and potential legal or procurement costs were not quantified in the board vote. Commissioners asked staff to report back with costs, contract status and an operational timeline for ceasing fluoridation and for any supply‑chain or capital adjustments needed in order to stop dosing.

The commission closed the agenda item after the roll call and moved on to other business. Ending: The decision marks a change in Miami‑Dade’s long‑running public water policy. Staff will return with implementation steps and cost and contract details; commissioners left the door open to revisit policy if public‑health agencies change guidance or if new evidence emerges.