Company will switch to "free chlorine" treatment temporarily during its annual water main and hydrant flushing program.

DAVENPORT, IA (March 9, 2010) Iowa American Water will adjust its treatment process for the next five weeks as part of its regular, ongoing hydrant maintenance and flushing program.

From March 10 through April 19, the company will switch its disinfection method to a form of chlorine known as "free chlorine" which does not contain ammonia. Chlorine is commonly used in public water systems as a disinfectant and is monitored closely by our water quality experts to ensure optimum levels are present. However, due to the temporary change in the type of chlorine, customers mayexperiencea more noticeable chlorine taste or odor in their tap water during the next five weeks.   There is no reason for concern. This is due to the switch in chlorine type only.

"The temporary switch in treatment is designed to make the routine flushing of water mains more effective and ensure we maintain our high quality water standards," said Randy Moore, president of Iowa American Water.

The treatment change is being done in conjunction with the company's water main flushing program which will be ongoing this spring.

Flushing of the LeClaire, Iowa distribution system is scheduled to begin on March 15. The flushing will be conducted from 8 a.m. until 10 p.m. each day. In addition, flushing of the distribution system in Davenport and Bettendorf is continuing as well.

"The flushing program is designed to maintain a high quality of water in the distribution system by flushing or cleaning mineral deposits and sediment from water mains. Over time, these sediments can build up in water mains causing discolored water and/or restricted flows. As part of this program we will also inspect and operate fire hydrants to assure they are in good working order as well." Moore added.

While no interruptions in water service will occur as a result of the work, Iowa American Water advises that when crews are flushing nearby, customers may experience a drop in water pressure or some discoloration of their water. Iowa American Water recommends that any customers experiencing discolored water let their cold water run to clear before using it again and refrain from doing laundry during that time. Any water discoloration or low pressure problems should last only a short period of time.

If problems persist, notify Iowa American Water's customer service line toll free 24-hours a day at 1-866-641-2108.
The water main and hydrant flushing will be performed by Iowa American Water crews who will be working out of utility trucks labeled with the company logo. All employees will also have photo ID badges.

Iowa American Water, a wholly owned subsidiary of American Water (NYSE: AWK), provides high-quality and reliable water and/or wastewater services to approximately 200,000 people. Founded in 1886, American Water is the largest investor-owned U.S. water and wastewater utility company. With headquarters in Voorhees, N.J., the company employs more than 7,000 dedicated professionals who provide drinking water, wastewater and other related services to approximately 15 million people in 32 states and Ontario, Canada. More information can be found by visiting


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