Multiple barrier concept of public health protection
{"Image DocumentName": "Multiple barrier concept of public health protection", "Image ImageDescription": "Multiple barriers are used so that if one barrier does not work, another provides safety. Each barrier can be optimized. In terms of specific distribution system barriers, the AWWA also has a helpful list. Some distribution barriers are: Cross connection control. Flushing programs. Disinfection. Water age management. (to avoid stagnation and DBPs) Pressure management. (to avoid leaks) Decorative Image: Various pathogen or chemical surrogates and a highway barrier graphic representing barriers to the presence of contaminants in drinking water.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}