Securing Water and Wastewater Systems: An Overview / Robert M. Clark, Simon Hakim, and Avi Ostfeld; Water/Wastewater Infrastructure Security: Threats and Vulnerabilities / Laurie J. Van Leuven; EPA Drinking Water Security Research Program / Hiba S. Ernst, K. Scott Minamyer, and Kim R. Fox; Drinking Water Critical Infrastructure and Its Protection / Rakesh Bahadur and William B. Samuels; Wastewater Critical Infrastructure Security and Protection / Rakesh Bahadur and William B. Samuels; Protecting Water and Wastewater Systems / Randy G. Fischer; Spatial Distributed Risk Assessment for Urban Water Infrastructure / Michael Möderl and W. Rauch; US Water and Wastewater Critical Infrastructure / Robert M. Clark; Microbial Issues in Drinking Water Security / Eugene W. Rice; Rapid Detection of Bacteria in Drinking Water and Wastewater Treatment Plants / Rolf A. Deininger, Jiyoung Lee, and Robert M. Clark; Chlorine Residual Management for Water Distribution System Security / Jeanne M. VanBriesen, Shannon L. Isovitsch Parks, Damian E. Helbling, and Stacia T. McCoy; Biosensors for the Detection of E. coli 0157:H7 in Source and Finished Drinking Water / Mark D. Burr, Andreas Nocker, and Anne K. Camper; Giuidelines, Caveats, and Techniques for the Evaluation of Water Quality Early Warning Systems / Dan Kroll; Protecting Water and Wastewater Systems: Water Distribution Systems Security Modeling / Avi Ostfeld; Protecting Consumers from Contaminated Drinking Water During Natural Disasters / Craig L. Patterson and Jeffrey Q. Adams; Cyber Security: Protecting Water and Wastewater Infrastructure / Srinivas Panguluri, William Phillips, and Patrick Ellis; Real-World Case Studies for Sensor Network Design of Drinking Water Contamination Warning Systems / Regan Murray, Terra Haxton, William E. Hart, and Cynthia A. Phillips; Enhanced Monitoring to Protect Distribution System Water Quality / Zia Bukhari and Mark LeChevallier; Testing and Evaluation of Water Quality Event Detection Algorithms / Sean A. McKenna, David B. Hart, Regan Murray, and Terra Haxton; Water Infrastructure Protection Against Intentional Attacks: The Experience of Two European Research Projects / Cristiana Di Cristo, Angelo Leopardi, and Giovanni de Marinis; Utility of Supercomputers in Trace-Back Algorithms for City-Sized Distribution Systems / Hailiang Shen and Edward McBean; Water/Wastewater Infrastructure Security: A Multilayered Security Approach / Laurie J. Van Leuven; Vulnerability of Water and Wastewater Infrastructure and Its Protection from Acts of Terrorism: A Business Perspective / Dave Birkett, Jim Truscott, Helena Mala-Jetmarova, and Andrew Barton.