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AWWA WQTC71398

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AWWA WQTC71398 On-line Water Quality Monitoring at the Portland Water Bureau: Comparison of Event Detection Systems

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

Richter, Ann C.

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The Portland Water Bureau (PWB), in Portland, Oregon, is evaluating available on-line waterquality monitoring technologies and Event Detection Systems for application in an on-line waterquality network in the distribution system. To date, the PWB has installed instrument suites atsix locations in its distribution system with a focus on Portland's in-town open finished waterreservoirs. The purpose of the monitoring network is to better understand water quality at thesecritical locations to improve both operations and security until the LT2 requirements for openfinished water reservoirs are met. The basic instrument suites include the parameters of totalchlorine, pH, turbidity, conductivity, dissolved oxygen, and temperature.One of these locations, the outlet of a 49 MG open finished water reservoir (and the inlet toanother 35 MG open reservoir), is being used to evaluate multiple technologies: the HachGuardian Blue system, and the S::CAN Spectro::lyser (UV-Vis-Spectrometer) with ana::larmsoftware. While this study is ongoing, current results include an analysis of the continuous data quality, onlinedata comparisons to routine grab samples, and lessons learned from installation to regularoperation and maintenance of on-line water quality monitoring equipment. Includes 3 references, tables, figures.

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Edition: Vol. - No. Published: 11/01/2009 Number of Pages: 13File Size: 1 file , 2 MB