Awwa C653-20 Disinfection of Water Treatment Plants

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The purpose of this standard is to define the minimum requirements for the disinfection of water treatment plants, including facility preparation, application of chlorine to the interior surfaces of water treatment units, and sampling and testing for the presence of total coliform bacteria. This standard can be referenced in specifications for the disinfection of water treatment plants and can be used as a guide for facility preparation, application of chlorine, and sampling and testing for the presence of total coliform bacteria. The stipulations of this standard apply when this document has been referenced and then only to the disinfection of water treatment plants.