The comprehensive control efficiency for the formation potentials (FPs) of a range ofregulated and unregulated halogenated disinfection by-products (DBPs) (including carbonaceousDBPs (C-DBPs), nitrogenous DBPs (N-DBPs), and iodinated DBPs (I-DBPs)) with themultiple drinking water treatment processes, including pre-ozonation, conventionaltreatment (coagulation–sedimentation, pre-sand filtration), ozone-biological activatedcarbon (O3-BAC) advanced treatment, and post-sand filtration, was investigated.