Annual Water Chlorine Conversion

The City of Horseshoe Bay will be conducting a free chlorine conversion of its water distribution system.  The conversion will begin on September 27, 2021, and will last for 30 days, ending October 27, 2021.

Currently, the City of Horseshoe Bay uses chloramines as long-lasting disinfection of the drinking water.  Chloramines are created by combining chlorine and ammonia. During this annual free chlorine reversion event, the disinfection process will be changed from chloramines to free chlorine.  Free chlorine is a stronger and faster-acting disinfectant used to ensure distribution pipes do not develop biofilm and produce nitrification.  Customers may notice open fire hydrants throughout the water distribution system.  The fire hydrants will be opened to allow flushing of the system to help remove sediment from the pipes and distribute the change in disinfectant. 

Possible Noticeable Effects  It is important to understand that during this temporary change there may be some slight discoloration or cloudiness in the water and possibly a slight chlorine odor or taste.   If this is experienced, you may want to run the water through the tap until it clears. Minor pressure fluctuations and small air pockets may also occur.  Fire hydrant flushing should remove most of the color and odor, but some may reach customer's lines during the process.

Is the Water Safe to Drink?  Yes, the water is safe to drink throughout the process.  Any odor and color issues will be a nuisance only, which will subside as the flushing is completed.  Customers who use tap water for kidney dialysis at home should consult with their physicians to advise them if any changes are necessary for their residual disinfectant neutralization procedures.  Customers utilizing the water for aquariums should monitor both free and combined chlorine residuals.

For additional information or questions contact

Daniel Cervantez

Water Quality Technician 


 Dane M. Bybee

Plant Operation Supervisor


  1. Daniel Cervantez

    Water Quality Technician
    Phone: 830.613.7006

  2. Dane Bybee

    Plant Operations Supervisor
    Phone: 830.598.9983