Thankfully my municipality does allow me to monitor dosage: http://www.city.milwaukee.gov/water/about/WaterQuality.htm http://www.city.milwaukee.gov/water/abou

Thankfully my municipality does allow me to monitor dosage: http://www.city.milwaukee.gov/water/about/WaterQuality.htm http://www.city.milwaukee.gov/water/about/WaterQuality.htm For 2009, the highest fluoride levels were 2.06 mg/L and the median level was 0.77 mg/L. So there's at least one data point.