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• July 28, 2008

The DMA is critical in evaluating and understanding the utility of any real time measurement technology or novel approach at a site. In accordance with Triad's goal of managing decision uncertainty, a DMA provides an initial look at any technology or strategy performance in terms of its ability to meet project decision criteria and guide dynamic work strategies.

The DMA can take many forms such as a comparison of a field based analytical method to a more established laboratory method or an evaluation of whether a particular tool or approach will work at a specific site. The format of a DMA is dictated by site characteristics and the intended use of the data. The resulting efforts provide many project benefits including: strategies to deal with matrix heterogeneity, testing a preliminary CSM to refine sampling protocols, development of field based action levels, designing appropriate QA/QC requirements, using collaborative data sets, improving data management, determining contingencies, and evaluating sample throughput/project staffing or other logistics.

This presentation will include an overview of the DMA process and provide examples of how DMAs have been structured under Triad projects. Examples are expected to highlight the multitude of activities than can be considered for a DMA while demystifying the process and providing a platform to design a DMA for your next Triad project.

• Stephen Dyment, U.S. EPA, Technology Innovation Program (dyment.stephen@epa.gov)

• Jean Balent, U.S. EPA, Technology Innovation Program (balent.jean@epa.gov)

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