AWWA Seeks Utilities for Disinfectant Residuals Study

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The American Water Works Association and Environmental Engineering & Technology are looking for water systems to participate in an important study on disinfectant residuals in August and September.  

Specifically, the study is seeking systems that use free chlorine either pre- or post-filter (not raw water) year-round for secondary disinfection in their distribution systems and have levels of DBPs near the 64/48 TTHM/HAA5 (80 percent of the Maximum Contaminant Levels). 

Participation in this study would involve discussions with EE&T staff to better understand each system and chlorination feed points. It would also require collecting and returning — via prepaid shipping — five, 1-liter samples of settled or filtered un-chlorinated water. Samples would need to be taken in the next 30 to 60 days.   

Utilities will not be identified in the results and/or the published paper, but each system will receive its own results.

If your utility is willing to participate in this study or if you have any questions, please email Steve Via, AWWA regulatory affairs manager, or call him at 202/326-6130.

About AWWA
Established in 1881, the American Water Works Association is the largest nonprofit, scientific and educational association dedicated to managing and treating water, the world’s most important resource. With about 50,000 members, AWWA provides solutions to improve public health, protect the environment, strengthen the economy and enhance our quality of life.


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