Distribution System Contamination
It is common for cities to have drinking water treatment plants and yet still have tap water that is considered unsafe or unreliable. This reduction in water quality is often attributed to contamination that occurs within municipal distribution systems. Over the course of the semester, our team will investigate potential mechanisms of distribution system contamination and develop best practices to avoid this contamination in the future. Potential factors that we will investigate include:
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Contamination of treated water in the distribution system has the potential to negate the improvements to water quality provided by an AguaClara plant. Intermittent distribution systems may create the conditions for the mechanisms which cause this contamination to occur. The most likely mechanisms of distribution system contamination are pipeline intrusion, cross contamination and inadequate household storage. Through proper operator training, effective regulation and installation of secure storage facilities and backflow prevention valves, these mechanisms can be prevented and safe water delivered to all AguaClara households.
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