Data Handling Records Sample Clauses

Data Handling Records. All data generated through field activities, or by the laboratory operation shall be reduced, verified and validated prior to reporting. The laboratory shall disseminate no data until it has been subjected to reduction, verification and validation. Details of data validation and usability procedures are included in Section 4. Data Reduction Field measurements (i.e., pH, turbidity, temperature, location data, etc.) will be read directly in the units of final use as provided on Table 8. Field team members are responsible for monitoring the collection and reporting of field data. Field team members will review field measurements at the time of measurement and may re-measure a parameter as necessary to assure quality and accuracy are maintained. The QA Officer will review field procedures and compare field data to previous measurement to assess comparability and accuracy of the field data measurements. Results of laboratory analyses will be reported in units of final use as provided on Table 8. Laboratory calculations will be performed as prescribed for a given analytical method or in conformance with acceptable laboratory standards at the time the calculation is performed. Data Verification As previously discussed, data will be manually verified, at the direction of the QA Director, prior to reporting analytical data and the laboratory QA Director will verify all entries and calculations and sign off on all data packages. Data Validation Field data will be validated by adherence to the SOPs in Appendix D. The performance of all field activities, calibration checks on all field instruments at the beginning and end of each day of use, manual checks of field calculations, checking for transcription errors and review of field log books is the responsibility of the field team leader. Laboratory data will be validated using the most current methods and quality control criteria consistent with USEPA’s National Functional Guidelines, as discussed in Section 4. The data validator shall consider the following: ■ Holding times; ■ Instrument performance check sample results; ■ Initial and continuing instrument calibration; ■ Results of blanks, surrogate spikes, MS/MSDs, laboratory control samples; ■ Results of analyte identification and quantization; and ■ Completeness of the data package (i.e., chain-of custody forms, analytical results, QC summaries, supporting raw data from instrument printouts).