About Disinfectant Changes

Chloramines and Free Chlorine are common disinfectants used by water suppliers to kill bacteria in drinking water. Consolidated Waterworks District No. 1 will notify customers when there is a
temporary switch in disinfectants.

Chloramines to Free Chlorine

In accordance with the Nitrification Control Plan, The District will annually change disinfectants from Chloramine to Free Chlorine during the summer months for about 45 days when there is an increase in water temperature.  Warmer water temperatures increase nitrification resulting in the regrowth of bacteria.  This change is intended to benefit our customers by reducing the levels of disinfection byproducts (DBPs) in the system, while still providing protection from waterborne disease.


For more information
please contact our
Communications Liaison and Notification Coordinator at ou
r main office.
Consolidated Waterworks No. 1
8814 Main Street Houma, LA 70361
985.879.2495

Free Chlorine to Chloramines

In accordance with the Nitrification Control Plan, The District will annually change disinfectants from Free Chlorine back to Chlorine during the summer months when there is an increase in water temperature.  Warmer water temperatures increase nitrification resulting in the regrowth of bacteria.  This change is intended to benefit our customers by reducing the levels of disinfection byproducts (DBPs) in the system, while still providing protection from waterborne disease.

Potential Adverse Health Effects of Chloramines

Consolidated Water Works District #1 wants to inform the public of the potential adverse health effects associated with Chloramines.  can cause problems to persons dependent on dialysis machines. A condition known as hemolytic anemia can occur if the disinfectant is not completely removed from the water that is used for the dialysate. Consequently, the pretreatment scheme used for the dialysis units must include some means, such as a charcoal filter, for removing the chloramine prior to this date.

Medical facilities should also determine if additional precautions are required for other medical equipment.

In addition, chloraminated water may be toxic to fish. If you have a fish tank, please make sure that the chemicals or filters that you are using are designed for use in water that has been treated with chloramines. You may also need to change the type of filter that you use for the fish tank.

Persons with Eczma or sensitive skin should also be cautious of this disinfection change.