Open AccessQuality assurance/quality control summary report on phase 2 of the Clinch River remedial investigation at the Oak Ridge Reservation, Oak Ridge, Tennessee
Author(s) -
Susan Holladay,
H.M. Anderson,
Sean Benson,
Bevelhimer,
Craig C. Brandt,
C.M. Chavannes,
R. B. Cook,
David Evans,
C.J. Ford,
R A Harris,
B.M. Horwedel,
B.L. Jackson
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/451306
Subject(s) - data quality , quality assurance , comparability , data collection , oak ridge national laboratory , computer science , sample (material) , representativeness heuristic , quality (philosophy) , sampling (signal processing) , quality control , documentation , data mining , database , reliability engineering , control (management) , engineering , statistics , operations management , metric (unit) , filter (signal processing) , mathematics , external quality assessment , philosophy , nuclear physics , programming language , physics , combinatorics , artificial intelligence , chemistry , epistemology , chromatography , computer vision
Quality assurance (QA) objectives for Phase 2 were that (1) scientific data generated would withstand scientific and legal scrutiny; (2) data would be gathered using appropriate procedures for sample collection, sample handling and security, chain of custody, laboratory analyses, and data reporting; (3) data would be of known precision and accuracy; and (4) data would meet data quality objectives defined in the Phase 2 Sampling and Analysis Plan. A review of the QA systems and quality control (QC) data associated with the Phase 2 investigation is presented to evaluate whether the data were of sufficient quality to satisfy Phase 2 objectives. The data quality indicators of precision, accuracy, representativeness, comparability, completeness, and sensitivity were evaluated to determine any limitations associated with the data. Data were flagged with qualifiers that were associated with appropriate reason codes and documentation relating the qualifiers to the reviewer of the data. These qualifiers were then consolidated into an overall final qualifier to represent the quality of the data to the end user. In summary, reproducible, precise, and accurate measurements consistent with CRRI objectives and the limitations of the sampling and analytical procedures used were obtained for the data collected in support of the Phase 2 Remedial Investigation