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March 2, 2024
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Unified Statistical Guidance
Internet-based seminar
Hosted by U.S. EPA

The webinar will provide interested parties a broad introduction to the March 2009 Unified Guidance. The session will start with the purposes of the guidance and a summary of how it is organized. Speakers will provide a brief discussion on how the guidance might be used for diagnostic evaluation of data assumptions. Next, speakers will expand on a number of key guidance topics:

  1. statistical design and hypothesis testing: how to set-up statistical testing to simultaneously identify "dirty" groundwater with sufficiently high probability while minimizing the chance of labeling "clean" groundwater as "dirty";
  2. the importance of background data: when might "moving windows" be needed? How should background be updated for intrawell testing? What if background levels are higher than compliance standards?;
  3. resampling and retesting: what benefits does retesting provide? How can it be done right?; and
  4. intrawell testing: why is spatial variation important? How can it be "fixed"?

At the end of the presentation, time will be left for either phone-in or written questions.

For general information contact Linda Fiedler by telephone at 703-603-7194
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Archives of past CLU-IN internet seminars are available in the CLU-IN Studio at You will be able to view the slide and hear an audio stream of the presentation as it occurred.Image denoting link exits Trainex system

Previous Events (click to view/hide)
Bullet  Live Online Class, Internet Based
  February 28, 2011 - February 28, 2011
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