study on “The Formation of Disinfection By-products of Chloramination, Potential Health Implications and Techniques for Minimisation.” Workshop participant for National Science Foundation on “Engineering Controls for Ballast Water Discharge: Developing Research Needs.” Co-investigator for AwwaRF project on “Improved Exposure Assessment on Existing Cancer Studies.” Co-investigator on USEPA project on “Enhanced Evaluation of Disinfectant By-Product Exposures for Epidemiological Studies.” Professional associations and journals He made professional contributions to many institutions, including: American Water Works Association (1977 – present), AWWA Research Foundation (now Water Research Foundation, WRF) and American Chemical Society (1975 – present). For AWWA, he has been involved in over one hundred committees, workgroups and advisory committees, which have included: Trustee (2 terms) of the Water Science & Research Division Member of Standard Methods Committee (multiple editions); chair of Joint Task Group (JTG) on closed-loop stripping analysis (CLSA) in Water, 17th ed.; Vice-Chair of Joint Task Group (JTG) on CLSA, 16th ed.; member of JTG on Taste, 17th ed.; member of JTG on Flavor Profile Analysis (FPA), 17th ed. Chair of the D/DBP Technical Advisory Workgroup (TAW) Member of Technical Advisory Group (TAG), which provided technical input to Water Utility Council (WUC) on legislative and regulatory issues Manager of the D/DBP TAW; included technical management of and coordination with universities and consulting engineering firms performing studies for the D/DBP TAW. Selected projects included: Disinfectants/Disinfection By-Products (D/DBP) Data Base for Regulation Negotiation Process Mathematical Modeling of the Formation of THMs and HAAs in Chlorinated Natural Waters Effect of Coagulation and Ozonation on the Formation of Disinfection By-Products Establishment of database on THM and HAA formation kinetics and impacts of various water quality parameters Development of chlorine and chloramine residual decay equations Authored state-of-the-science literature review on nitrosamines for AWWA Government Affairs Office. (2012 – 2013) Guest technical editor for special issue of Journal AWWA on nitrosamines For AWWA Research Foundation (now Water Research Foundation): Invited expert for state-of-the-science expert workshop on Evaluating the Scientific Evidence for Chlorination Disinfection By-Products (CDBPs) Associated with Human Health Outcomes (i.e., Bladder Cancer) Project Advisory Committee (PAC) on “Exploring formation and Control of Emerging DBPs in Treatment Facilities: Halonitromethanes and Iodo-Trihalomethanes. PAC on Quantitative Comparative Mammalian Cell Cytotoxicity and Genotoxicity of Selected Classes of Drinking Water Disinfection By-Products PAC on Exploring the Mechanisms of Dihalogenated Acetic Acid Formation (DXAA) During Chloramination For the American Chemical Society: Organized symposium on Occurrence, Formation, Health Effects and Control of