Thanks for the informatio folks.
This area is in Pojoaque, New Mexico which is just north of Santa Fe. The "Espanola Valley" has been know to have some high concentrations of fluoride.
The iron content was non-detectable.
No analysis on As ions.
I have a small water system (200,000 gpd) of gw wells and I need to remove Fluoride and Arsenic. The FL is 11 mg/l and the Arsenic is about 0.025. I thought about Activated Alumina but that may be a problem with the FL above 2 mg/l. The pH is 7.95. Maybe Bone Char to reduce the FL, then AA or RO...
