NYC-WTC_000202221

NYC 9/11 Public Portal Document

Pace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414 TM -

^ace Analytical ______ __ Method 8290 Analysis Results Tel: 612-607-1700 Frx: B12-S07-644Z

Client - ATC Client's Sample ID ATC-0418-89M-DX3 Lab Sample ID 103481370 Filename F20507A_10 Injected By. BAL 2 Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 04/18/2002 ICALDate 05/04/2002 Received 04/23/2002 CCal Filename(s) F20507A_06 & F20507A_22 Extracted 04/30/2002 Method Blank ID BLANK-1606 Analyzed 05/07/2002 18:12 Native Cone EMPC URL 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 85 Total TCDF

2.3,7,8-TGDD ND

ND 0.00200

0.00200 2,3,7,8-TCDD-13C 1,2,3,7,8-PeCDF-13C 2,3,4,7,8-PeCDF-13C 2.00 2.00 s Total TCDD 0.0078 0.00200 J 1,2,3,7,8-PeCDD-13C 1,2,3,4,7.8-HxCDF-13C 2.00 2.00 g 107: 1,2,3,7,8-PeCDF 2,3,4,7,8-PeCDF Total PeCDF

1,2,3,7,8-PeCDD ND ND ND

ND 0.01000 0.01000 0.01000 0.01000 1,2,3,6,7,8-HxCDF-13C 2,3,4,6,7,8-HxCDF-13C 1,2,3,7,8.9-HxCDF-13C 1,2,3,4,7.8-HxCDD-13C 1,2,3,6,7,8-HxCDD-13C 2.00 2.00 2.00 2.00 2 2.00 2 s 101 92 Total PeCDD/2 2 ND 0.01000 1,2,3,4,6,7,8-HpCDF-13C-7 2.00 2' 1,2,3,4,7,8,9-HpCDF-13C 2.00 i 1,2,3,4,7,8-HxCDF ND - 0.01000 1,2,3,6,7,8-HxCDF 2,3,4,6,7,8-HxCDF ND ND - - 0.01000 0.01000 1,2,3,4,6,7,8-HpCDD-13C OCDD-13C 7 ' 4.00/ S- 1,2,3,7,8,9-HxGDF ND - 0.01000 1,2.3,4-TCDD-13C <7 • NA Total HxCDF 2^ ND - 0.01000 2 1,2,3,7,8,9-HxCDD-13C2 ' 2.2.002/.-: 2 NA 1,2,3,4,7,8-HxCDD ND - 0.01000 ;; 2,3,7,8rTCDP-37CI<M ■/, 0.20 „ 84 1.2,3,6,7,8-HxCDD ND - o.otooo 1,2,3,7,8,9-HxCDD ND - 0.01000 Total HxCDD , ND - 0.01000 1,2,3,4,6.7,8-HpCDF ND - 0.01000 Total 2,3,7,8-TCDD 7/. . 1,2,3,4,7,8,9-HpCDF ND - 0.01000 Equivalence: 0.000033 ng/m2 Total HpCDF ND - 0.01000 (Using ITE Factors) 1,2,3,4,6,7,8-HpCDD ND 0.01000 Total HpCDD ND 0.01000 OCDF ND 0.02000 OCDD 0.0330 0.02000 J

LRL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7,8-substituted isomers) I = Interference EMPC = Estimated Maximum Possible Concentration E = PCDE 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 N0.....02-1056603

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_000202224