The fluoride status of Port Lincoln's public water supply, who decides, and how to check it yourself. Page last updated 6 November 2026.
The Eyre South system (Lincoln Basin and Uley borefields) is not dosed. Its roughly 0.5 mg/L fluoride is natural.
Without fluoridated water, dental guidelines put more weight on fluoride toothpaste, diet and regular check-ups. Your supply does carry some natural fluoride. Some people prefer fluoride-free options.
Law: No Act. SA Water policy.
Who decides: SA Water and SA Health, by policy.
Coverage: about 90% of communities (2020). First fluoridated: Adelaide, 1971.
A desalination plant, now delayed to June 2027, will change Port Lincoln's supply.
0.5 mg/L average (Oct 2025 to Sep 2026), according to SA Water performance results, Sep 2026. Fluoridated supplies in Australia target 0.6 to 1.1 mg/L, and the health guideline maximum is 1.5 mg/L.
Fluoride isn't added, but it occurs naturally in Port Lincoln's water. The Eyre South system (Lincoln Basin and Uley borefields) is not dosed. Its roughly 0.5 mg/L fluoride is natural.
SA Water and SA Health, by policy.
Look up SA Water's annual drinking water quality report, which lists fluoride in mg/L by supply zone. You can also ask the utility for monthly readings.
No. Boiling leaves the fluoride behind and slightly concentrates it. Reverse osmosis, distillation and activated alumina filters remove fluoride. Read more.