PCDD/PCDF lab report, PS234M, April 2002

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Lab Sample ID BLANK-1572 Matrix WIPE Filename F20423A_08 Dilution NA Total Amount Extracted 1 m2 Extracted 04/15/2002 I CAL Date 04/12/2002 Analyzed 04/23/2002 19:23 1 CCal Filename{s) F20423A_03 & F20423A_16 Injected By MRO I t 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 72 Total TCDF ND 0.00200 2,3,7,8-TCDD-13C 2.00 73 1,2,3,7,8-PeCDF-13C 2.00 75 i 2,3,7,8-TCDD ND 0.00200 2,3,4,7,8-PeCDF-13C 2.00 78 Total TCDD ND 0.00200 1,2,3,7,8-PeCDD-13C 2.00 77 1,2,3,4,7,8-HxCDF-13C 2.00 108 1,2,3,7,8-PeCDF ND 0.01000 1,2,3,6,7.8-HxCDF-13C 2.00 68 1 2,3,4,7,8-PeCDF Total PeCDF ND ND 0.01000 0.01000 2,3,4,6.7,8-HxCDF-13C 1,2,3,7,8,9-HxCDF-13C 2.00 2.00 86 82 1,2,3,4,7,8-HxCDD-13C 2.00 102 1,2,3,7,8-PeCDD ND 0.01000 1,2,3,6,7,8-HxCDD-13C 2.00 84 Total PeCDD ND 0.01000 1,2,3,4,6,7,8-HpCDF-13C 2.00 78 1,2,3,4,7,8,9-HpCDF-13C 2.00 80 1,2,3,4,7,8-HxCDF ND 0.01000 1,2,3,4,6,7,8-HpCDD-13C 2.00 67 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 76 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: 0.00 ng/m2 Total HpCDF ND 0.01000 (Using ITE Factors) ] 1,2,3,4,6,7,8-HpCDD ND 0.01000 Total HpCDD ND 0.01000

OCDF ND 0.02000 OCDD ND 0.02000

Conc= Concentration (Totals include 2,3,7,B-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.... 02-1055818 1 1

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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