Volatile organic compound blank wipe analysis results, Oct 2002

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Method 8290 Blank Analysis Results

Client - ATC ASSOCIATES

Lab Sample ID BLANK-2278 Matrix WIPE Filename F21017B_05 Dilution NA Total Amount Extracted 10.1 g Extracted 10/10/2002 ICAL Date 10/01/2002 Analyzed 10/18/2002 02.24 CCal Filenamefs) F21017B_01 &F21017B_16 Injected By MRO

Native Cone EMPC LRL Internal ng's Percent Isomers ng/Kg ng/Kg ng/Kg Standards Added Recovery

2,3,7,8-TCDF ND 0 20 2,3,7,8-TCDF-13C 2 00 77 Total TCDF ND 0 20 2,3,7,8-TCDD-13C 2 00 75 1,2,3,7,8-PeCDF-13C 2 00 78 2,3,7,8-TCDD ND 0.23 A 2,3,4,7,8-PeCDF-13C 2.00 77 Total TCDD ND 0 20 1,2,3,7,8-PeCDD-13C 2 00 75 j 1,2,3,4,7,8-HxCDF-13C 2 00 90 1,2,3,7,8-PeCDF ND 0 99 1,2,3,6,7,8-HxCDF-13C 2.00 98 2,3,4,7,8-PeCDF ND 0 99 2,3,4,6,7,8-HxCDF-13C 2.00 94 Total PeCDF ND 0 99 1,2,3,7,8,9-HxCDF-13C 2 00 87 1,2,3,4,7,8-HxCDD-13C 2 00 89 1,2,3,7,8-PeCDD ND 0 99 1,2,3,6,7,8-HxCDD-13C 2 00 87 Total PeCDD ND 0 99 1,2.3,4,6,7,8-HpCDF-13C 2.00 78 1,2,3,4,7,8,9-HpCDF-13C 2 00 72 1,2,3,4,7,8-HxCDF ND 0 99 1,2,3,4,6,7,8-HpCDD-13C 2 00 72 1,2,3,6,7.8-HxCDF ND 0 99 OCDD-13C 4 00 68 2,3,4,6,7,8-HxCDF ND 0.99 1,2,3,7,8,9-HxCDF ND 0 99 1,2,3,4-TCDD-13C 2 00 NA Total HxCDF ND 0 99 1,2,3,7,8,9-HxCDD-13C 2 00 NA

1,2,3,4,7,8-HxCDD ND 0 99 2.3,7.8-TCDD-37CI4 0 20 74 1,2,3,6,7,8-HxCDD ND 0 99 1,2,3,7,8,9-HxCDD ND 0.99 Total HxCDD ND 0 99 1.2,3,4,6,7,8-HpCDF ND 0 99 Total 2,3,7,8-TCDD 1,2,3,4,7,8,9-HpCDF ND 0 99 Equivalence 0.00 ng/Kg Total HpCDF ND 0 99 (Using ITE Factors)

1,2,3,4,6,7,8-HpCDD ND 0 99 Total HpCDD ND 0 99 OCDF ND 2 00 OCDD ND 2 00

Cone = Concentration (Totals include 2,3,7,8-substituted 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... 1062687

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

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