Public Utilities

Chloramines

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UPDATED! - Chlorine Maintenance Program Begins

An Important Message from City of Clearwater

About Chloramines

Special care for dialysis patients and aquatic life

An Important Message from City of Clearwater

In May 2002, the disinfectant used by the City of Clearwater Public Utilities for the treatment of our potable (drinking) water changed to chloramines instead of chlorine. Chloramine, a form of disinfectant produced by combining chlorine with ammonia, is a disinfectant that destroys potentially harmful bacteria should they enter the potable water system.

Special care for dialysis patients and aquatic life

Chloramines have been used safely in the United States and Canada for many years. For most normal uses of potable water, chloraminated water is the same as chlorinated water. There are two groups of people, however, who need to take special care with chloraminated water: kidney dialysis patients and fish owners.

Chloramines must be removed from the water used in the kidney dialysis process and from water that is used in fish tanks and ponds.

Kidney Dialysis

Kidney dialysis patients can safely drink, cook, and bathe in chloraminated water. However, chloramines must be removed from the water used in kidney dialysis machines. Dialysis systems will require some modifications to remove the chloramines. Check with your physician to be certain the necessary changes are made. All medical facilities that perform kidney dialysis have been notified of this change to chloraminated water treatment. According to the ESRD [End Stage Renal Disease] federal regulations, these facilities are responsible for purifying the water that enters the dialysis machines.

Aquatic Life

Chloramines are toxic to saltwater and freshwater fish, reptiles, turtles and amphibians, and must be removed from any water to be used for fish tanks or ponds. Chloramines in water do not dissipate (evaporate) as readily as chlorine, therefore, specific steps must be taken for their removal. Chloramines can be removed from the water by using a water conditioner specifically designed to remove chloramines or by using a granular activated carbon filter. Your pet products supplier should be able to provide any further guidance you may need on these products. Ammonia can be toxic to fish. Biological filters, natural zeolites, and pH control methods are effective in reducing the toxic effects of excess ammonia that may be present in aquarium water due to the chemical removal of chloramines.

Chlorine Maintenance Program Begins

The 2010 drinking water distribution maintenance program begins Monday, Aug. 23, and concludes Friday, Oct. 8, 2008. This maintenance requires changing the drinking water disinfectant from chloramines to free chlorine. The last annual maintenance was performed in August 2009, and some residents noticed a slight difference in the taste and odor of their drinking water. Although the disinfectant is a little more noticeable, it is perfectly safe.

This routine maintenance is required to ensure the drinking water provided to our customers continues to be of the highest quality. The annual chlorine maintenance process continues to run smoothly every year with increased cooperation and commitment from our customers. Thank you in advance for your patience as we gear up for the 2008 distribution system maintenance. For more information, review our flyer and frequently asked questions.