If there is a detectible taste or odor, there are several possibilities that might be the cause but neither are unsafe nor a health concern. The first cause may be from the cleaning of the settlement basins at the water treatment plant that usually occurs twice each year. The City has implemented plans for additional plant improvements that should correct such problems. These actions are scheduled to be completed this year. In the meantime, interim procedures have been implemented to reduce problems until the improvements are complete.

A second and most likely cause result from algae blooms in the water taken from the Cheney Reservoir. (Algae are microscopic plants that can grow in the reservoir and generate compounds may cause taste and odor under certain conditions in the water. These compounds can give the water an earthy or musty smell, but do not affect the safety of the drinking water. Most cities using lakes or reservoir for their water supply usually encounter such problems periodically and Wichita is no different.

Based on the latest technology, there are several solutions that can be utilized in the treatment and prevention. Chemical treatments have been successful in some cases in treating some taste and odor problems. These treatment techniques are expensive but none will assure complete removal of taste and odor. The City is currently evaluating the effectiveness and costs of the various treatment techniques. Based upon other operational systems, implementing any of these technologies may have a significant impact on water rates; therefore, the City will be cautious about proceeding with any new treatments without a complete evaluation.

The other method of dealing with the problem is through prevention. The City is currently working with farmers in the watershed (around the Cheney Reservoir) to help reduce the flow of nutrients and sediment into the reservoir. This action, while a longer-term process, is the best long-term solution to taste and odor problems because it will change the environment of the reservoir to reduce algae growth and extend the life of the reservoir. This program is one of the most successful programs of its kind in the nation, and has served as the model for similar programs throughout the country. Unfortunately these improvements in the watershed will not provide immediate relief from the current taste and odor problem.

The taste and odor problem is a troubling matter to the City and a nuisance to those individuals who are able to detect these conditions that may occur from time to time. The City is committed to safe and quality water and it is of concern when such taste and odor problems occur which are beyond our control. Even though other communities utilizing water reservoirs have similar taste and odor challenges, the City’s Water Department is doing everything possible to address these periodic concerns and find long- term solutions.

Your patience is appreciated and we regret any inconvenience such temporary conditions may have caused.

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