PCDD/PCDF lab report, PS234M, April 2002

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Client - ATC Client's Sample ID ATC-0308-234M-DX1 Lab Sample ID 103384939 Filename F20327B_10 Injected By BAL Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 03/08/2002 ICAL Date 01/24/2002 Received 03/12/2002 CCal Filename(s) F20327A_14 & F20327B_18 Extracted 03/21/2002 Method Blank ID BLANK-1528 Analyzed 03/27/2002 22:37 Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2.3,7,8-TCDF ND 0.0050 A 2,3,7,8-TCDF-13C 2.00 94 Total TCDF 0.0047 0.0020 J 2,3,7,8-TCDD-13C 2.00 93 1,2,3,7,8-PeCDF-13C 2.00 93 2,3,7,8-TCDD ND 0.0072 A 2,3,4,7,8-PeCDF-13C 2.00 90 Total TCDD 0.0530 0.0020 1,2,3,7,8-PeCDD-13C 2.00 91 1,2,3,4,7,8-HxCDF-13C 2.00 85 1,2,3,7,8-PeCDF ND 0.0100 1,2,3,6,7,8-HxCDF-13C 2.00 87 2,3,4,7,8-PeCDF 0.012 0.0100 I 2,3,4,6,7.8-HxCDF-13C 2.00 98 Total PeCDF 0.0520 0.0100 1,2,3,7,8,9-HxCDF-13C 2.00 112 1,2,3,4,7,8-HxCDD-13C 2.00 68 1,2,3,7,8-PeCDD ND 0.0100 1,2,3,6,7,8-HxCDD-13C 2.00 83 Total PeCDD 0.0560 0.0100 1,2,3,4,6,7,8-HpCDF-13C 2.00 76 1,2,3,4,7,8,9-HpCDF-13C 2.00 77 1,2,3,4.7,8-HxCDF 0.027 0.0100 E 1,2,3,4,6,7,8-HpCDD-13C 2.00 82 1,2,3,6,7.8-HxCDF ND 0.0100 OCDD-13C 4.00 71 2,3,4,6,7,8-HxCDF 0.011 0.0100 I 1,2,3,7,8,9-HxCDF ND 0.0100 1,2,3,4-TCDD-13C 2.00 NA Total HxCDF 0.0230 0.0100 J 1,2,3,7,8,9-HxCDD-13C 2.00 NA

1,2,3,4,7,8-HxCDD 0.0110 0.0100 J 2,3,7,8-TCDD-37CI4 0.20 94 1,2,3,6,7,8-HxCDD ND 0.0100 1,2,3,7,8,9-HxCDD 0.0110 0.0100 J Total HxCDD 0.3400 0.0100

1,2,3,4,6,7,8-HpCDF 0.0270 0.0100 J Total 2,3,7,8-TCDD 1,2,3,4,7,8,9-HpCDF ND 0.0100 Equivalence: 0.0029 ng/m2 Total HpCDF 0.0270 0.0100 J (Using ITE Factors)

1,2,3,4,6,7,8-HpCDD 0.0340 0.0100 J Total HpCDD 0.0340 0.0100 J

OCDF ND 0.0200 OCDD 0.0890 0.0200 J

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.... 02-1055020

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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