drinking waterWHAT: Pinellas County Utilities will conduct routine maintenance on the water system in order to optimize water quality. The method of water treatment will be temporarily changed from chloramine to chlorine disinfection. 

WHEN: September 22 – October 11, 2025

  • Semiannual water system maintenance program begins Monday, September 22.
  • Routine switch from chloramine to chlorine improves water quality.
  • During the switch, water will continue to meet all federal and state standards.

Pinellas County Utilities will temporarily change its water disinfection process to chlorine from Monday, September 22 through Saturday, October 11. During this time, drinking water may smell or taste slightly different but there will be no impact to water pressure or service.

This semiannual switch temporarily changes the method of water treatment from chloramine to chlorine disinfection to improve water quality and minimize the potential for any future problems in the water system.

Kidney dialysis patients should not be impacted but should contact their dialysis care provider for more information about chlorine disinfection and how it affects their treatment. Fish owners should not be affected if they already have a system to remove chloramines but should contact local pet suppliers with any questions.

There have been no indications of significant bacteriological contamination problems in the system, and the water will continue to meet all federal and state standards for safe drinking water. Pinellas County Utilities water customers will benefit from this, as well as customers in the cities of Clearwater, Pinellas Park and Safety Harbor.

For more information, please visit pinellas.gov/utilities or contact Pinellas County Utilities Customer Service at (727) 464-4000.

Unregulated Contamination Monitoring Rule for Drinking Water

Pinellas County Utilities samples the potable water distribution system for unregulated drinking water contaminants to help the U.S. Environmental Agency (EPA) determine whether the contaminants need to be regulated.

Drinking water sampling results for 2024 are available in an annual Consumer Confidence Report. To view the report, visit pinellas.gov/2024-consumer-confidence-report-on-water-quality or call (757) 464-4000 to request a paper copy. For more information about EPA’s Unregulated Contamination Monitoring Rule, visit epa.gov/dwucmr.