PCDD/PCDF wipe sample results, PS 234M, Mar 2002

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Method 8290 Blank Analysis Results Client - ATC

Lab Sample ID BLANK-1516 Matrix WIPE Filename F20320A_05 Dilution NA Total Amount Extracted 1 m2 Extracted 03/14/2002 ICAL Date 01/24/2002 Analyzed 03/20/2002 11;49 CCal Filename(s) F20320A_01 & F20320A_16 Injected By MASS

Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,8-TCDF ND 0.00200 2,3,7,8-TCDF-13C 2.00 69 Total TCDF ND 0.00200 2,3,7,8-TCDD-13C 2.00 63 1,2,3,7,8-PeCDF-13C 2.00 71 2,3,7,8-TCDD ND 0.00200 2,3,4,7,8-PeCDF-13C 2.00 69 Total TCDD ND 0.00200 1,2,3,7,8-PeCDD-13C 2.00 67 1,2,3,4,7,8-HxCDF-13C 2.00 109 1,2,3,7,8-PeCDF ND 0.01000 1,2,3,6,7,8-HxCDF-13C 2.00 73 2,3.4,7,8-PeCDF ND 0.01000 2,3,4,6,7,8-HxCDF-13C 2.00 81 Total PeCDF ND 0.01000 1,2,3,7,8,9-HxCDF-13C 2.00 88 1,2,3,4,7,8-HxCDD-13C 2.00 100 1,2.3,7,8-PeCDD ND 0.01000 1,2,3,6,7,8-HxCDD-13C 2.00 72 Total PeCDD ND 0.01000 1,2,3,4,6.7.8-HpCDF-13C 2.00 75 1,2,3,4,7,8,9-HpCDF-13C 2.00 69 1,2,3,4,7,8-HxCDF ND 0.01000 1,2,3,4,6,7,8-HpCDD-13C 2.00 77 1,2,3,6,7,8-HxCDF ND 0.01000 OCDD-13C 4.00 68 2,3,4.6,7,8-HxCDF ND 0.01000 1,2,3.7,8,9-HxCDF ND 0.01000 1,2,3,4-TCDD-13C 2.00 NA Total HxCDF ND 0.01000 1,2.3,7,8,9-HxCDD-13C 2.00 NA

1,2,3,4,7,8-HxCDD ND 0.01000 2,3,7.8-TCDD-37CI4 0.20 66 1.2,3,6,7,8-HxCDD ND 0.01000 1,2,3,7,8,9-HxCDD ND 0.01000 Total HxCDD ND 0.01000 1,2,3,4,6,7,8-HpCDF ND 0.01000 Total 2,3,7.8-TCDD 1,2,3,4,7,8.9-HpCDF ND 0.01000 Equivalence; 0.0011 ng/m2 Total HpCDF ND 0.01000 (Using ITE Factors)

1,2,3,4,6,7,8-HpCDD 0.023 0.01000 J Total HpCDD 0.046 0.01000 J

OCDF ND 0.02000 OCDD 0.850 0.02000

Cone = Concentration (Totals include 2,3,7,8-substituted isomers). I = Interference EMPC = Estimated Maximum Possible Concentration E = PCDE Interference LRL = Lower Reporting Limit ND = Not Detected J = Concentration detected is below the calibration range NA = Not Applicable P = Recovery outside of target range NC = Not Calculated A = Detection Limit based on signal-to-noise measurement • = See Discussion

Report No.... 02-1054706

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.

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