This powerpoint presentation begins by providing a brief overview of taste and odor in drinking water and the dual purpose of ultraviolet- (UV)- based advanced oxidation process (AOP). Kinetic experiment conditions are presented, along with a reactor scale-up study, modeling input parameters, direct UV photolysis, UV-H₂O₂ AOP, and UV-H₂O₂ alternatives in drinking water treatment plants (WTPs). Presentation conclusions indicate that: geosmin, 2-MIB, pyrazines and anisoles were successfully reduced to below OTC levels using UV-H₂O₂ and UV-HOCl; in UV-H₂O₂ scale-up study, natural organic matter (NOM) and H₂O₂ dose were major key factors, rather than pH and carbonate alkalinity; T&O decay rates increased with the following order of treatments: UV (1) < UV-NO₃^- (4) < UV-H₂O₂ (9) < UVHOCl (40); and, the result leads to the possibility of using HOCl together with UV in an AOP system; however, a potential problem is disinfection byproduct (DBP) formation due to high chlorine doses. Includes tables, figures.