Much research has been conducted in the use of UV light in water disinfection: its effectiveness against pathogens (particularly Cryptosporidium); UV equip-ment reliability, system design and operation; construction and operating costs, and other basic issues. How does this research translate into actual applications in municipal drinking water utility companies? “Bridging Pilot-Scale Testing to Full-Scale Design of UV Disinfection Systems?? by Englewood, Colo.-based AWWA develops and translates pilot-scale research in the use of UV light for water disinfection to full-scale design.