The Thermo Scientific emission spectrometer will detect the trace element content of sodium chloride in brine.
Acme Brick, Glen-Gery Corp., and Whitacre Greer are a few of the companies recognized by the Brick Industry Association.
The technology is a reverse osmosis process that treats acidic wastewater.
Fargo, N.D., ranks among the cleanest; DFW, Las Vegas on the dirty list.