AWWA WQTC65846

AWWA WQTC65846 Using Chlorine-Ammonia Pretreatment for Bromate Control during Ozonation
Conference Proceeding by American Water Works Association, 11/01/2007

Wert, Eric c.; Neemann, Jeffrey J.; Johnson, David; Rexing, David; Zegers, Ronald

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The Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR) establishedguidelines for Cryptosporidium inactivation credit with ozonation. In order to meetthese requirements, drinking water utilities may have to employ a bromate mitigationtechnique to comply with the Stage 1 Disinfectant/Disinfection Byproducts Rule,which established a maximum contaminant level (MCL) of 10 g/L for bromate. In2000, the Southern Nevada Water Authority (SNWA) and Black