Fluoridation Toxicity Misunderstanding

table from "On Tap"

The dosage makes the poison.  One would suffer and die from water toxemia way before even scratching the toxic level of fluoride from water.  Water toxemia occurs when you drink more water than your kidneys can filter which is more than a litre/hour.  To reach a toxic level of fluoride, one would have to consume easily over 1000 glasses (250ml) per day.