UK - Daily Echo - Fluoridaton questions

Fluoridaton questions
REGARDING flupri-dation, Olga Senior of the SHA said in the Echo: "The consultation highlights the challenge of discussing public health issues in the age of the Internet, where people need to try to evaluate a huge range of complex scientific information available on water fluoridation, some of which is clearly inaccurate and has often been reproduced by local campaigners."
In the interests of clarity, and to eliminate any misinformed rumours on the Internet, would Olga Senior please describe in detail the origin of the fluoride that she and her fellow SHA board members intend to add to the water supply?
Where does it come from, and what processes will it undergo before it reaches Otterbourne Water Works?
SALLY MclNTYRE, Southampton.