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

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FEB-28-B2 09;22 FROM-PACE ANALYTICAL 612-607-6444 T-T60 P.OE/06 F-336 1700 Elm Street ■ Suite 2QC

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Teh 612-607-1700 F^X' ^07-^44/ Method 8290 Analysis Results Client - ATC Client's Sample ID ATC-0205-234M-DX2 Lab Sample ID 103307203 Filename F20222A_05 Injected By MASS Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 02/05/2002 iCAL Date 01/24/2002 Received 02/06/2002 CCal Fll©name(s) F20222A_01 & F20222A_14 Extracted 02/18/2002 Method Blank ID BLANK-1471 Analyzed 02/22/2002 11:32 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 60 Total TCDF 0.0045 0.00200 J 2,3,7,8-TCDD-13C 2.00 56 1.2,3,7,8-PaCDF-13C 2.00 70 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,a-HxCDF-13C 2.00 81 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 73 Total PeCDF ND 0.01000 1,2,3,7,8,9-HxCDF-13C 2.00 67 1.2,3.4,7.8-HXCDD-13C 2.00 86 1.2.3.7.8-PeCDD ND 0.01000 1,2,3,6,7,8-HxCDD-13C 2.00 70 Total PeCDD 0.0110 0.01000 J 1,2,3,4,6,7,8-HpCDF-13C 2.00 74 1,2,3,4,7,8,9-HpCDF-13C 2.00 62 1,2,3,4,7,8-HxCDF ND 0.01000 1,2,3,4,6,7,8-HpCDD-13C 2.00 72 1,2,3,6,7,8-HxCDF ND ---- 0.01000 OCDD-13C 4.00 45 2,3,4,6,7.8-HxCDF 0.012 0.01000 E 1,2,3,7,8,9-HxCDE ND —- 0.01000 1,2,3.4-TCDD-13C 2.00 NA Total HxCDF ND -- 0.01000 1,2,3,7,6,9-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 0.1700 0.01000 1,2,3,4,6,7.8-HpCDF 0.0140 0.01000 J Total 2,3,7,8-TCDD 1,2,3,4,7,8,9-HpCDF ND 0.01000 Equivalence: 0.00043 ng/m2 Total HpCDF 0.0140 0.01000 J (Using ITE Factors)

1.2,3.4.6.7,8*HpCDD 0.0240 0.01000 J Total HpCDD 0.0620 0.01000 J

OCDF ND 0.02000 OCDD 0.0510 0.02000 J URL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7.6-substltuted Isomers) I = Interference EMPC = Estimated Maximum Possible Concentration E = PC DE 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.... 02-1053790

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

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