Water System Disinfection Method - Change from chloramines to chlorine, beginning Oct. 7, 2025
PUBLIC NOTICE
Every year, Brunswick County Public Utilities and the towns, cities, and other utilities that purchase water from Brunswick County, implement an annual flushing program. Public Utilities employees flush the water mains by opening fire hydrants and allowing them to flow freely for a short period of time. The flushing cleans out sediment and allows routine maintenance of the more than 1,440 miles of water lines and over 7,789 fire hydrants in the Brunswick County service area. Flushing may result in discoloration and presence of sediment in your water. These conditions are not harmful and are temporary.
During the annual flushing program, a slight change is made in the water treatment process to facilitate an effective flushing program. Throughout the year, Brunswick County Public Utilities adds combined chlorine (in the form of chloramines), to the water as the primary disinfectant. During the annual flushing program, chlorine is added in an uncombined state, commonly referred to as free chlorine. Free chlorine is more effective than combined chlorine at reacting with sediments suspended during flushing. This common practice is also used as preventive maintenance to kill bacteria that, though harmless when consumed by humans, can introduce unwanted taste and odor, and create issues with maintaining a disinfectant residual.
Brunswick County will use free chlorine as the primary disinfectant from October 7, 2025, through November 2025.
Depending on your location within the distribution system and usage patterns, it could take 7 to 10 days for your drinking water to transition from combined chlorine to free chlorine at the beginning of the flushing program. The annual change from chloramines to free chlorine for this brief period is required by the North Carolina Department of Environmental Quality to promote optimal disinfection throughout the water distribution system.
You may experience a change in the taste or smell of your drinking water while free chlorine is being used as the primary disinfection agent. If you are especially sensitive to the taste and odor of chlorine, try keeping an open container of drinking water in your refrigerator. This will enable the chlorine to dissipate and reduce the taste of chlorine in your water. Remember – drinking water has a shelf life. Change out the water in your refrigerated container weekly.
Note: If you have an aquarium or pond, always test the water that you add to your aquatic environment to be sure it is free of any chlorine before adding fish or other animals. Chemical additives with directions for removing either free chlorine or chloramines from water for use in fish tanks or ponds are available at pet/fish supply stores. Kidney dialysis clinics and customers on home kidney dialysis equipment should also be aware of this change.
If you have any questions regarding this process, contact Brunswick County Public Utilities at 910.253.2657, 910.371.3490, 910.454.0512, or via email, or contact your water service provider directly.
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