Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Data Assessment Reports for CEMS (Continuous Emission Monitoring Systems) at Subpart Da Facilities.
Author Walsh, G. ;
CORP Author Entropy Environmentalists, Inc., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher Mar 89
Year Published 1989
Report Number EPA-68-02-4550; EPA/600/3-89/027;
Stock Number PB89-169866
Additional Subjects Continuous sampling ; Data recorders ; Data acquisition ; Quality assurance ; Assessments ; Sulfur dioxide ; Nitrogen oxides ; Auditing ; Trends ; Calibrating ; Revisions ; Performance tests ; State government ; Forecasting ; Environmental monitoring ; Air pollution sampling ; Data assessment reports
Library Call Number Additional Info Location Last
NTIS  PB89-169866 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 08/24/1989
Collation 55p
EPA promulgated minimum quality assurance (QA) requirements for Continuous Emission Monitoring Systems (CEMS) in 40 CFR Part 60 Appendix F. Appendix F requires the development of site-specific QA plans and the reporting of results of EPA specified QA activities each calendar quarter. The report of QA activities under Appendix F is called a Data Assessment Report (DAR). The DAR includes identifying and descriptive information for the CEMS, results of periodic audits, identification of periods when calibration drift exceeds specified criteria, identification of periods when the analyzers or CEMS are out of control (OOC), and descriptions of corrective actions in response to OOC conditions. The principle objective of the study is an evaluation of the information in DARs for the first and second quarters of calendar year 1988. Secondary study objectives include the establishment of contacts with agency staff who normally receive the DARs each quarter and identification of facilities for which DARs were apparently not received, for follow-up by the appropriate agency.