The boxplot graph shows the analyte bias and variability of the blind organic QA data. The plot also shows outliers and quartile ranges of the recovery data.
Extreme values have been "clipped" or removed from the plot
and designated as such with a blue dot.
The charts and data that you might secure from this U.S. Geological Survey (USGS)
web page (identified as "OBSP") have not received official USGS approval and as such are provisional and subject to revision.
The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its
authorized or unauthorized use.
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U.S. Geological Survey
