PCDD/PCDF lab report, PS234M, April 2002

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Lab Sample ID BLANK-1546 Matrix WIPE Filename F20406A_07 Dilution NA Total Amount Extracted 1 m2 Extracted 04/01/2002 ICAL Date 01/24/2002 Analyzed 04/07/2002 00:15 CCal Filename(s) F20406A_03 & F20406A_19 Injected By BAL

Native Cone EMPC LRL Internal ng'S Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,8-TCDF ND — 0.0025 A 2,3,7,8-TCDF-13C 2.00 65 Total TCDF ND 0.0020 2,3,7,8-TCDD-13C 2.00 57 1,2,3,7,8-PeCDF-13C 2.00 67 2,3,7,8-TCDD ND 0.0024 A 2,3,4,7,8-PeCDF-13C 2.00 63 Total TCDD ND 0.0020 1,2,3,7.8-PeCDD-13C 2.00 64 1,2,3,4,7,8-HxCDF-13C 2.00 89 1,2,3,7,8-PeCDF ND 0.0100 1,2,3,6,7,8-HxCDF-13C 2.00 84 2,3,4,7,8-PeCDF ND 0.0100 2,3,4,6,7,8-HxCDF-13C 2.00 83 Total PeCDF ND 0.0100 1,2,3,7,8,9-HxCDF-13C 2.00 81 1,2,3,4,7,8-HxCDD-13C 2.00 91 1,2,3,7,8-PeCDD ND 0.0100 1,2,3,6,7,8-HxCDD-13C 2.00 76 Total PeCDD ND 0.0100 1,2,3,4,6,7,8-HpCDF-13C 2.00 70 1,2,3,4,7,8,9-HpCDF-13C 2.00 61 1,2,3,4,7,8-HxCDF ND 0.0100 1,2,3,4,6,7,8-HpCDD-13C 2.00 77 1.2,3,6,7,8-HxCDF ND 0.0100 OCDD-13C 4.00 70 2,3,4,6,7,8-HxCDF ND 0.0100 1,2,3,7,8,9-HxCDF ND 0.0100 1,2,3,4-TCDD-13C 2.00 NA Total HxCDF v ND 0.0100 1,2,3,7,8,9-HxCDD-13C 2.00 NA

1,2,3,4,7,8-HxCDD ND 0.0100 2,3,7,8-TCDD-37CI4 0.20 61 1,2,3,6.7,8-HxCDD ND 0.0100 1,2,3,7,8,9-HxCDD ND 0.0100 Total HxCDD ND 0.0100

1,2,3,4,6,7,8-HpCDF ND 0.0100 Total 2,3,7,8-TCDD 1,2,3,4,7,8,9-HpCDF ND 0.0100 Equivalence: 0.000025 ng/m2 Total HpCDF ND 0.0100 (Using ITE Factors)

1,2,3,4,6,7,8-HpCDD ND 0.0100 Total HpCDD ND 0.0100

OCDF ND 0.0200 OCDD 0.025 0.0200 J

Cone = Concentration (Totals include 2,3,7,8-subslituted 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.... 02-1055252

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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