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The Johnston County Water Supply System will temporarily stop feeding ammonia in combination with chlorine for disinfection of the public water supply and feed chlorine only beginning on or about February 22, 2010, for approximately six weeks. State and Federal regulations require that public water systems feed chlorine for at least three weeks per year to insure that no bacteria are present which may have adapted to the ammonia in the water. Customers who use kidney dialysis machines or who have tropical fish should be aware that the water will contain more chlorine during this period and then will return to a chlorine and ammonia mixture (chloramine) on or about April 4, 2010.

Johnston County supplies water to many county residents and businesses including the Towns of Four Oaks, Princeton, Kenly, Wilson's Mill, and Clayton; private utilities including Aqua NC and Carolina Water Service; and all Johnston County water districts.  Supplemental supply is provided to the Towns of Pine Level, Benson, Selma, and Fuquay-Varina. Citizens served by private wells will not be affected. Johnston County has used a combination of ammonia and chlorine since September 1996 for disinfection of the public water supply to reduce the level of trihalomethanes and haloacetic acids, a series of chemicals formed when water is disinfected using chlorine. 

Most customers will not experience any difference in their water, but some may notice a stronger chlorine taste or odor and may observe minor changes in color in their water.  If you experience a color change which cannot be cleared by flushing the lines in your house or business, or if you have questions, please call the number on your water bill for clarification.  If you have other concerns about this change, please call Johnston County Public Utilities at 989-5075.