Guidance for Data Quality Assessment

Demonstrates how to use data quality assessment in evaluating environmental data sets and illustrates how to apply some graphical and statistical tools for performing DQA.

• Guidance for Data Quality Assessment: Practical Methods for Data Analysis: EPA QA/G9: QA00 Update: July 2000 (pdf) (1.22 MB)
  Demonstrates how to use data quality assessment in evaluating environmental data sets and illustrates how to apply some graphical and statistical tools for performing DQA.
• Data Quality Assessment: A Reviewer's Guide (EPA QA/G-9R) (pdf) (258.68 KB, 240-B-06-002)
• Data Quality Assessment: Statistical Methods for Practitioners (EPA QA/G-9S) (pdf) (2.37 MB, 240-B-06-003)