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The following document is
intended to assist project managers with the selection of
appropriate analytical methodology during the development of Data Quality
Objectives (DQOs) for assessing contamination in cases
where cleanup target levels are below the sensitivity of
published methods and also as an aid in the data review
process. The tables included in this document provide
target Practical Quantitation Limits (PQLs) for selected,
published analytical methods where laboratory PQLs have
frequently been found to be higher than Cleanup Target
Levels (CTLs). Data consumers and project managers can use
the published PQLs as guidelines during project
development and data review a) to ensure that adequately
sensitive analytical techniques are utilized to address
project DQOs, b) as an aid in assessing whether good faith
efforts were made to achieve the best possible detection
and quantification for the test conditions, and c) to help
determine whether or not project goals for required
remediation have been achieved. If you have any questions
please contact
Andrew Tintle.
Guidance for the Selection of Analytical Methods and for the Evaluation of
Practical Quantitation Limits, October 12, 2004 (PDF, 970 kB)
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