PCDD/PCDF lab report, PS234M, April 2002

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Client - ATC Client's Sample ID ATC-0319-234IV1-DX2 Lab Sample ID 103418810 i Filename Injected By F20415A_13 MASS Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 03/19/2002 ICAL Date 04/12/2002 Received 03/26/2002 CCal Filename(s) F20415A_02 & F20415A_15 Extracted 04/03/2002 Method Blank ID BLANK-1552 Analyzed 04/15/2002 21:18 Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 1 2,3,7,8-TCDF Total TCDF ND 0.029 ..... —- 0.00200 0.00200 2,3,7,8-TCDF-13C 2,3,7,8-TCDD-13C 2.00 2.00 61 55 1,2,3,7,8-PeCDF-13C 2.00 63 2,3,7,8-TCDD ND 0.00200 2,3,4,7,8-PeCDF-13C 2.00 61 1 I Total TCDD 1,2,3,7,8-PeCDF 0.042 ND 0.00200 1,2,3,7,8-PeCDD-13C 1,2,3,4,7,8-HxCDF-13C 1,2,3,6,7,8-HxCDF-13C 2.00 2.00 59 92 0.01000 2.00 68 2,3,4,7,8-PeCDF ND 0.01000 2,3,4,6,7,8-HxCDF-13C 2.00 73 Total PeCDF ND 0.01000 1,2,3,7,8,9-HxCDF-13C 2.00 55 1,2,3,4,7,8-HxCDD-13C 2.00 84 1,2,3,7,8-PeCDD ND 0.01000 1,2,3,6,7,8-HxCDD-13C 2.00 74 Total PeCDD 0.013 0.01000 J 1,2,3,4,6,7,8-HpCDF-13C 2.00 68 1,2,3,4,7,8,9-HpCDF-13C 2.00 54 1,2,3,4,7,8-HxCDF ND 0.01000 1,2,3,4,6,7,8-HpCDD-13C 2.00 62 1,2,3,6,7,8-HxCDF ND 0.01000 OCDD-13C 4.00 49 2,3,4,6,7,8-HxCDP 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 56 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 T 1,2,3,4,6,7,8-HpCDF ND 0.01000 Total 2,3,7,8-TCDD .J 1,2,3,4,7.8,9-HpCDF Total HpCDF ND ND 0.01000 0.01000 Equivalence: 0.00030 ng/m2 (Using ITE Factors) 1,2,3,4,6,7,8-HpCDD 0.016 0.01000 J Total HpCDD 0.028 0.01000 J OCDF ND 0.02000 OCDD 0.140 0.02000 LRL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7,8-substituted isomers) I = Interference EMPC = Estimated Maximum Possible Concentration E = PCDE Interference A = Detection Limit based on signal-to-noise measurement S = Saturated signal J = Concentration detected is below the calibration range ND = Not Detected B = Less than 10 times higher than method blank level NA = Not Applicable P = Recovery outside of target range NC = Not Calculated Nn = Value obtained from additional analysis * = See Discussion Report No....02-1055552

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

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