Short of a Board of Health vote to stop the practice of adding fluoride to the water, opponents the practice will press the issue at Town Meeting Saturday. The citizens petition article would authorize the Board of Selectmen to petition the Legislature to place a question on the election ballot in 2014.

The Board of Health was scheduled to meet Thursday night to continue its discussion of adding fluoride to the town’s water supply and consider lowering the amount of fluoride. The board could decide to lower it or prevent it any time.

Duxbury Residents for Fluoride Choice members like Dianne Siroonian don’t want any fluoride to be added to the water, particularly with lead being added.

She’s worried about the cumulative effect over a lifetime, especially about how children could be affected by lead exposure.

“Over your lifetime, that’s not a good thing,” she said. “The people most vulnerable in our community are being exposed to this.”Selectmen previously voted and reiterated their support for eliminating the practice. Selectmen David Madigan said the fact that there is any lead at all disturbs him, especially with the federal Environmental Protection Agency advocating for no lead in the water.

“The EPA goal is zero in the water,” he said.In a letter from town counsel, attorney Kevin Batt wrote that an associate with Anderson & Krieger conducted a quick review and research on the lead issue raised by the opponents of fluoridation.

The findings, according to the letter, indicate that the town is not in violation of any lead or other environmental standards in its fluoridation practice.

Siroonian said lead levels may be below what are described as acceptable levels, but that doesn’t mean it’s a good idea. She said advocates for choice have found the politicial process to be disheartening and hopes there will be support for their effort at Town Meeting.