Fluoride is a naturally-occurring mineral found in high concentrations in water in some areas of northern New Mexico. Whereas the fluoridation of public water supplies for dental hygiene is highly controversial, there is little disagreement about the danger of elevated, naturally-occurring fluoride in groundwater supplies. High levels of fluoride can cause tooth discoloration (dental fluorosis) and skeletal deterioration. Elevated fluoride levels can be confirmed through laboratory testing. Fluoride in public water supplies is regulated by the EPA and the MCL (Maximum Contamination Level) is a very useful guideline for private wells.The presence of fluoride does not affect the taste, smell or color of water. Elevated fluoride is not generally a problem in surface water supplies.
