AWWA WSC69989

AWWA WSC69989 Case Study to Guide the Development of a Flushing Response Plan to Contamination Incidents

Conference Proceeding by American Water Works Association, 11/01/2009

Haxton, Terra Baranowski; Janke, Robert; Murray, Regan; Bahl, Sumedh

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Full Description

This powerpoint presentation begins by providing a brief overview of the motivation for developing contamination warningsystems and timely response. The research approach, detection and response process, and response methodology are presented, along with required input to, and output from, the optimization solver. A case study is presented with the following goals: identify response actions (e.g., boil water alerts,flushing, valve closures) which could be implementedto minimize impacts given a contamination event;provide input to utility on development of aconsequence management plan; and,develop a software tool to support the selection ofoptimal response actions (flushing, valve closures,public notifications) given a contamination event. A summary of analysis includes:effectiveness of response options can be impacted bydetection time, proximity to storage tanks, number of sensors, number of hydrants flushed, andnumber of valves closed; difficult to determine single response option for allinjections detected by a sensor; and, process to identify single response option is morechallenging than originally thought. Includes table, figures.

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