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~.l n' J Emission Test Report EMC W A-2-08 Section 4 Revision: 0 Date: September 30, 1999 Page 70f9 I I Fl 4.1.9 Visible Emissions Determination All visible emissions readings were perfonned using EP A Method 9 procedures contained in USEP A 40 CFR 60, Appendix A. Appendix E of this report contains the raw field data for the tests. --1 U Evaluations of visible emissions from the crematorium stack were made by an observer who was certified in accordance with Section 3.12.1, Subsection 1.3 of the , Quality Assurance Handbook for Air Pollution Measurements Systems: Volume III (EPA- 600/4-77-027b, August 1977). Appendix E contains the observer's certification. ~'''J ....,~'.J r:l ;,,{ ,~J The observer stood at a distance that provided a clear view of the emissions with the sun oriented in the 1400 sector to his back. In addition, the observer made observations from a position at which the line of vision was approximately perpendicular to the plume direction. For more detailed infonnation on the observer position, see Appendix E. [.1 . , ~.JJ Opacity observations were made at the point of greatest opacity in the portion of the plume where condensed water vapor was not present. Opacity was read at 15-sec intervals, and readings were made to the nearest 5% opaCity with a minimum of '24 observations being recorded. Readings were taken against a clearly visible background which gave the highest degree of contrast. See Appendix E for more detailed infonnation on the observations. ~-l " .J q l.j 4.2 Analytical Procedures r'l LJ rl I, ! ~.. The analytical methodology and procedures used by MRI for this project were standardized methods and EP A approved procedures. The analytical methods used on this project are described below. The MRI SOPs pertaining to the methods are cited. ''') J 4.2.1 Analysis for PCDDs and PCDFs q I, f :__J The sample components recovered from the Method 23 trains (i.e., XAD-2 resin and filter) were combined and extracted in the laboratory using Soxhlet extraction according to MRI SOP CS154. The procedure for extraction involved placing the XAD-2 resin and filter samples in the Soxhlet apparatus, spiking with 13C12 PCDDIPCDF internal quantitation standards, and extracting with toluene for a minimum of 16 hours. i i 1 , I ~_J The train rinses were extracted with methylene chloride using a separatory funnel. Following extraction, the methylene chloride was concentrated to a volume of 1 to 5 mL u MRI.AED\R49S 1-08-03 S4.wpd