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Reverse Osmosis UnitSweetwater Authority customers are among the first in the region to benefit from a desalination process designed to treat "brackish," or saline, groundwater to make it safe for human use.

The Richard A. Reynolds Groundwater Desalination Facility, formerly known as a Demineralization Facility, uses reverse-osmosis treatment (R/O) to remove dissolved salts and microscopic particles, such as bacteria and other contaminants which could be found in alluvial groundwater. The R/O process water is treated to prevent corrosion, and chlorine and ammonia are added to further assure disinfection.

The facility, completed in 1999, can produce four million gallons of drinking water per day. It was honored with a 1999 San Diego Orchid in the competition's environmental solutions category.

Last updated: 2/16/2011 8:28:41 AM