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AWWA ACE65561

AWWA ACE65561 New Methods to Assess Groundwater Under Direct Influence and Bank Filtration Performance

Conference Proceeding by American Water Works Association, 06/01/2007

Fontaine, Nicola; Rauch-Williams, Tanja; Abbaszadegan, Morteza; Johnson, William; Hubbs, Stephen

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This powerpoint presentation begins by providing a brief overview of current groundwater under direct influence (GWUDI) assessment protocol, along with MPA and riverbank filtration. The results of a utility survey are outlined, along with limitations of the current GWUDI/MPA protocol and application to riverbank filtration. A new study was done with the following goals: Integration of Cryptosporidium into the MPAprotocol;Reevaluation of suitable MPA indicatorsurrogates and detection methods; and,Scientific reevaluation MPA as a riskassessment tool. The technical approach and preliminary results are presented. Includes tables, figures.

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