What is the process for drinking water disinfection?
During the treatment process, the Washington Aqueduct disinfects the drinking water in two phases, primary and secondary disinfection. Typically, the drinking water of the City of Falls Church water system is treated with chlorine for primary disinfection and chloramine for secondary disinfection. For a short period each year, the Washington Aqueduct temporarily switches the second phase of disinfection to chlorine and does not use chloramine.
