AWWA ACE54375

Drinking water utilities using chloramines for disinfection are advised to periodically review their monitoring program to operate more efficiently and ensure regulatory compliance. The three driving forces for developing a monitoring program are: regulatory compliance, process control, and customer satisfaction. This paper provides a brief overview of water quality parameters to consider when developing a chloramine monitoring program. The water quality parameters include: total chlorine residual; free chlorine residual; ammonia; nitrite and nitrate; heterotrophic plate count; pH; alkalinity; hardness; temperature; dissolved oxygen; disinfectant decay rate; total coliform bacteria; disinfection byproducts; and, monitoring locations and frequency. The purpose of this paper is to provide operators, students or others who have minimal experience or knowledge of chloramines with a basic description of water quality parameters related to the use of chloramines as a secondary disinfectant. Includes 11 references.