NYC-WTC_000219421

NYC 9/11 Public Portal Document

FEB-18-02 12:53 FROH-PACE ANALYTICAL 612-807-B444 T-547 P 05/05 F-876 1700 Elm Street - Suite 200 Minneapolis, MN 55414 a I * f”*

^ace Analytical_________ Method 8290 Analysis Results Tel: 612-607.1700 Faic 61g-607-6444

Client - ATC Client's Sample ID ATC-0126-89M-DX4 ■'t

Lab Sample IO 103292421 Filename U20212B_14 Li Injected By BAL Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 01/25/2002 ICAL Date 01/25/2002 Received 01/29/2002 CCal Fllaname(s) U20212A_11 & U20212B_15 Extracted 02A)8/2002 Method Blank ID BLANK-1457 Analyzed 02/13/2002 10:19 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 63 Total TCDF ND ---- 0.0020 2,3,7,8-TCDD-13C 2.00 69 1,2,3,7,8-PeCDF-13C 2.00 68 2,3,7.8-TCDD ND 0.0048 A 2,3,4,7,8-PeCDF-13C 2-00 66 Total TCDD ND 0.0020 1,2,3,7,8-PeCDD-13C 2.00 81 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 82 2,3.4.7.8-PeCDF ND 0.0100 2,3,4,6,7,8-HxCDF-13C 2.00 76 Total PeCDF ND 0.0100 1,2,3.7,8,9-HxCDF-13C 2.00 76 1.2,3.4.7.8-HxCDD-13C 2.00 92 1,2.3,7,8-PeCDD ND 0.0100 1,2,3,6,7.8-HXCDD-13C 2.00 93 Total PeCDD ND 0.0100 1,2,3,4,6,7,8-HpCDF-13C 2.00 93 1.2,3,4,7,8.9-HpCDF-13C 2.00 82 1.2.3.4,7,8-HxCDF ND 0.0100 1,2,3,4,6,7,8-HpCDD-13C 2.00 85 1,2,3,6,7,8-HxCDF ND 0.0100 OCDb-13C 4.00 70 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-37Cl4 0.20 78 1.2,3,6,7,8-HxCDD ND 0.0100 1,2,3,7,8,9-HxCDD ND 0.0100 Total HxCDD ND 0.0100 1,2,3,4,6,7.8-HpCDF ND 0.0100 Total 2.3.7.8-TCDD 1.2,3,4,7,8,9-HpCDF ND 0.0100 Equivalence: 0.00 ng/m2 Total HpCDF ND 0.0100 (Using ITE Factors)

1,2,3,4.G,7,8.HpCDD ND 0.0100 Total HpCDD ND 0.0100 OCDF ND 0.0200 OCDD ND 0.0200 LRL = Lower Reporting Limit Cone - Concentration (Totals include 2,3,7,ft-substitutod isomers) I s Intarterence EMPC s Estimated Maximum Posable Concentration E «= PCOe Interference A ■ Defectton Limit based on slgnal-to-noise measurement S s Saturated signal J - Concentration detaoted Is below tie calibration range ND s Not Detected 8 - Less than 10 times higher than method blank level NA-Not Applicable P 3 Recovery Outside of target range NC = Not Calculated Nn s Value Obtained from additional analysis * = Sae Discussion Report No.... 02-1053530

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_000219425