Distribution System Comprehensive Performance Evaluation

During the week of September 8th, members of the Optimization Team, in partnership with the EPA Region 6 and Arkansas Department of Health (ADH), conducted a field event to support the development of a Distribution System Comprehensive Performance Evaluation (DS CPE) for chloraminated water systems. The DS CPE protocol was originally developed for water systems that use free chlorine as a secondary disinfectant. As a result, the existing DS CPE protocol is in the process of being modified to apply to chloraminated water systems, which was supported by the findings and experience gained from this event. The field event was hosted by two systems, Marion County Regional Water District, a parent system, and Yellville Water Works, one of their six consecutive systems. Typically DS CPEs are only conducted at a single water system, so this event allowed the unique opportunity of implementing the tool at two systems with a parent-consecutive system relationship. Both systems welcomed the feedback from the team during the exit meeting and the Optimization Team will request updates on their mutual pursuit of optimization from ADH staff. (Matthew Alexander, Alison Dugan, & Tom Waters, US EPA TSC)

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