AWWA ACE65412

This powerpoint presentation lists the challenges faced by small water systems as: water is vulnerable to microbial contamination because source protection is difficult; part-time operators with insufficient training in new technologies are common; lack of clear documented operating, maintenance and response plans; and, disinfection byproducts caused by interaction of organics and chlorine. Biological threats to small systems include: bacterial pathogens shigella, salmonella, E.coli that can cause diarrheal disease; Protozoal threats of Giardia and Cryptosporidium that cause diseases and are very hardy in the environment; and, Natural Water Problems of iron, radon, manganese, hydrogen sulfide, organics, hardness. Factors for improving Smaller Water Systems include: full water sampling and analysis required; data analysis and conceptual design factors; develop a full Process and Instrumentation Diagram; proposal with budget pricing; final design drawings; manufactured typical small UV Disinfection System - NSF 120 USGPM; manufactured small municipal UV disinfection system 3rd Party Validated 300 USgpm; manufactured Control and Monitoring Panel - Switches and LED Alarms with HMI; Commissioning; training; research needs; package plants; and, membrane filtration.