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

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FEB-t9-O2 C8;23 FROM-PACE ANALYTICAL Bl 2-607-6444 T-536 P.02/04 F-851 1700 Elm Street • Suite 200 Minneapolis, MN 55414

^aceAnalytical__________ Tel; 612-607-1700 Fax: 612- 607-6444 Method 8290 Analysis Results Client - ATC Client's Sample ID ATC-0122-234M-DX1 Lab Sample ID 103283551 Filename U20211A^05 Injected By CVS Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 01/22/2002 ICAL Date 01/25/2002 Received 01/24/2002 CCal Filenam0(s) U20211A_O1 &U20211A_15 Extracted 02/06/2002 Method Blank ID BLANK-1453 Analyzed 02/11/2002 15:40 Native Cone EMPC URL Internal ng'5 Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,8-TCDF ---- 0.0062 0.00200 I 2.3,7,8-TCDF-13C 2.00 84 Total TCDF 0.160 0.00200 2.3,7,8-TCDD-13C 2.00 73 1,2,3,7,8-PeCDF-13C 2.00 72 2,3,7,8-TCDD ND 0.00200 2.3.4,7,8-PeCDF-13C 2.00 71 Total TCDD 0,190 0.00200 1,2,3,7,8-P©CDD-13C 2.00 79 1,2,3,4,7,8-HxCDF-13C 2.00 103 1.2.3,7,8-PeCDF ND 0.01000 1,2,3,6,7,8-HxCDF-13C 2.00 87 2,3,4,7,8-PeCDF 0.0130 0.01000 I 2,3.4,6.7.8-HxCDF-13C 2.00 88 Total PeCDF 0.120 0.01000 1,2,3,7,8,9-HxCDF-13C 2.00 88 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 76 Total PeCDD 0.250 0.01000 1,2,3,4,6,7,8-HpCDF-13C 2.00 79 1,2,3,4,7,8,9-HpCDF-13C 2.00 72 1,2,3,4,7,8-HxCDF 0.0140 0.01000 I 1,2,3,4,6,7,8-HpCDD-13C 2.00 70 1,2,3,6,7,8-HxCDF ND 0.01000 OCDD-13C 4.00 64 2,3.4,6,7,8-HxCDF 0.015 0.01000 J 1,2,3,7,8,9-HxCDF ND 0.01000 1,2,3,4-TCDD-13C 2.00 NA Total HxCDF 0.065 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,B-TCDD-37CI4 0.20 74 1,2,3,6,7,8-HxCDD 0.017 0.01000 J 1,2.3,7,8,9-HxCDD 0.013 0.01000 J Total HxCDD 0.610 0.01000

1,2,3,4,6,7,8-HpCDF 0.034 0.01000 J Total 2,3,7,B-TCDD 1,2,3,4,7.8.9-HpCDF ND 0.01000 Equivalence: 0.0053 ng/m2 Total HpCDF 0.054 0.01000 J (Using ITE Factors)

1,2,3.4,6,7,8-HpCDD 0.047 0.01000 J Total HpCDD 0.093 0.01000 J

OCDF ND 0.02000 OCDD 0.085 0.02000 BJ LRL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7,8-8u0stitutGd isomers) I = Interference EMPC a Estimated Maximum Possible Concentration E = PCDE Interference A = Detection Limit based on slgnal-to-noise measurement S = Saturated signal J = Concentration detected is below the calibration range ND = Not Detected B a 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.... 02-1053389

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

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