AWWA WQTC60645

AWWA WQTC60645 Verifying the Reliability of EPA Method 314 to Measure Perchlorate at Sub ppb Levels vs New EPA Method Options
Conference Proceeding by American Water Works Association, 11/15/2004

Eaton, Andrew

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This slide presentation outlines information on methods of measuring perchlorate at sub ppb levels. Topics covered include: accuracy at the sub-ppb level; analytical options for ClOsub4/sub at this concentration range; principles of Methods 314, 314.1, 330.0, and 331; comparison of these methods; 3 issues of measuring at this level; Massachusetts demonstration of capability; Massachusetts batch QC criteria for sub-ppb analysis; required single blind PT studies for MA; results of single blind performance; and, performance assessment.