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19 Aug 2020 .

Annual Conference Webinar Series: Corrosion

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upto 100
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19 Aug 2020

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A debacle of corrosive water destroying pipes preceded the events in Flint, Michigan by over two decades. In November 1992, the water department for .. Read more Tucson, Arizona, (Tucson Water or TW) began delivery of a new water supply: treated surface water from the Central Arizona Project (CAP) primarily Colorado River water. Putting treated CAP water into the TW distribution system caused a devastating corrosion problem that resulted in colored water (e.g., red, orange, yellow and brown) flowing from customer taps. The purpose of this presentation is to summarize the results of an exhaustive investigation into the debacle and to chronicle how TW changed its management practices, dramatically improved its abysmal credibility, ended over pumping of its groundwater and created a sustainable water supply for the TW service area. The mistakes that Tucson Water and other utilities have made when changing water supplies and water quality, and the successful steps that Tucson Water took to regain credibility and public trust, provide lessons for all water utilities when contemplating similar actions. The "lessons learned" presented from this investigative study cover many aspects of utility management including technical research, organizational culture and structure, open and effective management, financial prioritization, and public outreach and engagement.

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