In early October, 2026, Osceola Water Works will begin its annual temporary change in the disinfectant used in the city’s water system. During this routine maintenance period expected to begin on October 6th and continue for a period of 30 days, Osceola Water Works will temporarily switch from chloramines to free chlorine.

Chloramines are an effective disinfectant and are used by Osceola Water Works as part of its regular water treatment process. However, periodically converting to free chlorine temporarily provides a stronger disinfectant throughout the water distribution system. Use of the stronger disinfectant stops the growth of any bacteria that may become resistant to routine disinfection and helps remove organic matter and other buildup that can accumulate inside water mains over time.

This annual proactive maintenance procedure is used widely by water utilities that treat drinking water with chloramines. The process is endorsed by health authorities, including the U.S. Environmental Protection Agency (EPA), and does not pose a public health risk to Osceola residents.

Because free chlorine can create certain regulated disinfection byproducts when used continuously, Osceola Water Works does not use it year-round. After the maintenance period, the water system will return to its normal chloramine-based disinfection process.

Our goal is to meet the needs of the people of Osceola through the use of safe disinfectants and maintenance of the water distribution system,” said Water Works General Manager Brandon Patterson. “Our dedicated staff will continue working to provide access to reliable, safe, and affordable drinking water.”

During the free chlorine conversion, residents may notice a temporary change in the taste or odor of their tap water. Some customers may notice a stronger chlorine smell or taste than they normally experience.  These changes are temporary and do not pose a health risk to Osceola residents.

For customers who are sensitive to the taste or smell of chlorine, placing tap water in an open container in the refrigerator for approximately a day can allow some of the chlorine to naturally dissipate and reduce the chlorine taste and odor.

Residents using tap water for aquariums, ponds, or other environments containing fish or aquatic animals should test and properly treat the water first. Pet stores and fish-supply stores typically carry products designed to remove or neutralize free chlorine and chloramine.

In conjunction with the free chlorine conversion, Osceola Water Works will conduct its annual fire hydrant-flushing program also beginning in early October.

During hydrant flushing, Water Works employees open fire hydrants and allow water to flow freely for a short period of time. This routine maintenance serves several important purposes, including:

  • Ensuring fire hydrants remain operational and reliable in the event of an emergency.
  • Removing sediment and other material that can settle in water mains.
  • Helping clean and maintain the water distribution system.
  • Supporting the continued quality and reliability of the community’s drinking water system.

Residents should not be alarmed if they notice slightly discolored water during the flushing process. If darkened, rusty, or cloudy water comes from a faucet, simply let the cold water run for several minutes until it becomes clear again. If the discoloration persists or you have other concerns about your tap water, contact Osceola Water Works for assistance.

The temporary free chlorine conversion and annual hydrant flushing processes are important parts of maintaining Osceola’s water distribution system. These proactive measures help Water Works maintain effective disinfection, support water quality, and ensure critical infrastructure remains ready when the community needs it.

If you have additional questions, please contact Osceola Water Works at (641) 342-1435, or via email at osceolawater2@windstream.net.