Automated Hydrant Flushing Program in Flint, MI

TSC’s Optimization Team, in collaboration with ORD, developed a low-flow automated flushing program to improve chlorine residual throughout the City of Flint while not disturbing the development of scale in pipes. During the week of April 11th, approximately 130 samples were collected throughout the City to identify areas of low chlorine residual. During the week of April 18th, 13 automated flushing devices were installed on hydrants in areas where low chlorine residual was identified. Both of these activities included training for utility staff by the Optimization Team. TSC will continue to support the City of Flint as they carry out and expand their automated flushing program and engage in other distribution system optimization activities.  (Matthew Alexander,  Alison Dugan, & Ouro Koumai, US EPA, TSC)

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