Dissolved　organic　matter　(DOM)　and　bromide,　two　primary　precursors　of　disinfection　by-products,　cannot　be　effectively　removed　by　conventional　coagulation　processes.　Alternative　methods　are　required　to　ensure　the　safety　of　drinking　water.　The　effectiveness　of　using　magnetic　ion　exchange　resin　(MIEX)　and　high-performance　coagulant　(HPAC)　in　a　hybrid　process　for　the　removal　of　turbidity,　DOM,　and　bromide　in　raw　water　supplies　was　investigated.　Results　showed　that　a　wide　range　of　DOM,　with　different　molecular　weights　(MWs)　containing　soluble　microbial　byproduct-like　organic　matters,　aromatic　protein,　and　fulvic/humic　acid,　was　removed　by　MIEX　in　the　two　studied　water　sources.　In　addition,　up　to　91%　of　bromide　was　removed　in　bromide　spiked　raw　waters.　In　comparison,　HPAC　coagulation　did　not　effectively　eliminate　low　MW　or　soluble　microbial　byproduct-like　organic　matters　in　raw　water.　The　combined　MIEX　and　HPAC　process　more　significantly　improved　the　performance　of　turbidity,　DOM,　and　bromide　removal　than　coagulation　alone.　With　MIEX　pretreatment,　the　requisite　HPAC　dosage　was　reduced　by　at　least　67%.　DOI:　10.1061/(ASCE)EE.1943-7870.0000622.　(C)　2013　American　Society　of　Civil　Engineers.