Quality Management Tools -
Data Verification and Validation

Data verification and validation is used to evaluate whether data has been generated according to specifications, satisfy acceptance criteria, and are appropriate and consistent with their intended use. Data verification is a systematic process for evaluating performance and compliance of a set of data when compared to a set of standards to ascertain its completeness, correctness, and consistency using the methods and criteria defined in the project documentation. Data validation follows the data verification process and uses information from the project documentation to ascertain the usability of the data in light of its measurement quality objectives and to ensure that results obtained are scientifically defensible.

References

Guidance on Environmental Data Verification and Data Validation (G-8) (PDF 96pp, 387K About PDF) - November 2002, EPA/240/R-02/004. Guidance on environmental data verification, validation, and integrity.

Examples and Other On-line Resources

EPA Office of Air Quality Planning and Standards - Data Validation of Enhanced Ozone Monitoring
www.epa.gov/air/oaqps/pams/analysis/validation/valid.html
EPA Region 1 - Data Validation Guidance
www.epa.gov/ne/oeme/index.html
EPA Region 4 - Data Validation Standard Operating Procedures for the Contract Laboratory Program
www.epa.gov/Region4/sesd/oqa/rassop.html
U.S. Army Corp of Engineers
www.usace.army.mil/inet/usace-docs/eng-manuals/em200-1-6

Quality Management Tools - Data Verification and Validation

References

Examples and Other On-line Resources

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Quality Management Tools -
Data Verification and Validation