Source: Metro Nashville, Tennessee Water System

Raw Concentrate from 30 gallons of distilled water
With some settled mineral content removed

Raw Concentrate and settled particulate

Detail
Water Quality Table for this system:
MWS tests for 105 contaminants that may be present in drinking water. The tables below show those contaminants that were detected January 1 through December 31, 2006. Source of data: Nashville Water Department

Note: The "source" of Fluoride above is listed as a reason for the supplement (water additive that promotes strong teeth) rather than the true source of the contaminant. Most of the fluoride used in public water systems is hydrofluorosilicic acid which is collected as a pollution by product from the phosphate fertilizer industry along with other regulated substances that are considered hazardous by the Environmental Protection Agency. It is illegal to dump this extremely toxic substance in any body of water in the United States. However, if it is collected and placed in rubber lined tankers and trucked around the country to water utilities, it magically becomes a product. It is somehow widely accepted to dilute it, and place it in public drinking water. This substance is extremely toxic and the 23 percent slurry solution from the phosphate mines can actually burn through concrete. If accidentally spilled, extraordinary hazmat procedures must be taken to clean up and dispose of the substance.