NYC-WTC_000226928

NYC 9/11 Public Portal Document

FEB-19-02 11:12'■ FROM-PACE ANALYTICAL B12-E07-B444 T-543 P.03/0B F-86G 1700 Elm Street - Suite 200 Minneapolis, MN 55414 TM .

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Method 8290 Analysis Results Client-ATC Client's Sample ID ATC-0123-STY-DX2 /'M.;.. II! Lab Sample ID 103286282 Filename U20212B_09 Injected By BAL Total Amount Extracted 1 m2 Matrix , WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 01/23/2002 ICAL Date 01/25/2002 Received 01/25/2002 CCal Filename(s) U20212/L11 & U20212B_15 Extracted 02/08/2002 Method Blank ID BLANK-1457 Analyzed 02/13/2002 06:11 Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 . Standards Added Recovery 2,3,7,8-TCDF ND 0.0029 A 2.3,7,8-TCDF-13C 2.00 93 Total TCDF ND 0.0020 2,3.7,8-TCDD-13C 2.00 96 1,2,3,7,8-PeCDF-13C 2.00 101 2,3,7,8-TCDD ND 0.0032 A 2,3,4,7,8-PeCDF-13C . 2.00 98 Total TCDD ND 0.0020 1,2.3,7.8-PeCDD-13C 2.00 118 1,2,3,4,7,8-HXCDF-13C 2.00 122 1,2,3,7,8-PeCDF ND 0.0100 1.2.3,6.7,8-HxCDF-13C 2.00 103 2,3,4,7,8-PeCDF ND 0.0100 2,3,4,6,7,8-HxCDF-13C 2.00 104 Total PeCDF ND 0.0100 1.2.3,7,8,9’HxCDF-13C 2.00 99 1.2,3,4,7,8-HxCDD-13C 2.00 136 P 1,2,3.7,8-PeCDD ND 0.0100 1.2,3.6.7,8-HxCDD-13C 2,00 116 Total PeCDD ND 0.0100 1,2,3,4,6,7,8-HpCDF-13C 2.00 117 1.2.3,4,7.8,9-HpCDF-13C 2.00 92 1,2,3,4,7,8-HxCDF ND 0.0100 1,2,3,4,6,7,8-HpCDD-l3C 2.00 106 1,2,3,6,7,8-HxCDF ND 0.0100 OCDD-13C 4.00 65 2,3,4,6,7,8-HxCDF ND 0.0100 1.2,3.7.8.9-HxCDF ND 0.0100 1,2,3,4-TCDD-13C 2.00 NA Total HxCDF ND 0.0100 1.2.3.7.8,9-HxCDD-13C 2.00 NA

1,2,3,4,7,8-HxCDD ND 0.0100 2.3.7.8-TCDD-37CI4 0.20 73 1,2,3,6,7,8-HxCDD ND 0.0100 1.2,3,7.8,9-HxODD ND 0.0100 Total HxCDD ND 0.0100

1.2.3,4,6,7.8-Hp(?DF ND 0.0100 Total 2,3,7,B’TCDD 1,2,3,4,7,8,9-HpCDF ND 0.0100 Equivalence: 0.000044 ng/m2 Total HpCDF ND 0.0100 (Using ITE Factors),

1,2,3,4.6,7.8-HpCDD ND 0.0100 Total HpCDD ND 0.0100 OCDF ND 0.0200 □CDD 0.044 0.0200 J LRL = Lower Repotting Limit Cone = Concentration (Totals indude 2,3,7,8.-substituted isomers) I = Interference EMPC = Estimated Maximum Possible Concentration E = POPE Interference A = Detection Limit based on signal-to-notee measurement S = Saturated signal J = Concentration detected ie below the calibration range ND = Not Detected B 5= Lose 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.... 02-1053443

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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NYC-WTC_000226929