Haloacetic acids (HAAs) and bromate are disinfection byproducts regulated by the US EPA and many other regulatory bodies worldwide. The traditional approved EPA 552.3 method using GC-ECD is a standard method but suffers from the notorious challenge of sample preparation. The long sample preparation step takes 3 to 4 hours, restricting to only 20 or so samples prepared per day, per analyst. The new Thermo Scientific™ TSQ Fortis™ Triple Quadrupole Mass Spectrometer provides robustness and productivity, delivering a cost-effective IC-MS/MS solution for HAAs and bromate analysis in big utility and contract labs for regulatory compliance analysis using EPA Method 557. EPA Method 557 is an approved direct injection method for HAAs and bromate analysis, saving time and reducing errors for analytical labs