NYC-WTC_000224767

NYC 9/11 Public Portal Document

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

^ace Analytical Method 3290 Analysis Results Tel: 612-607-1700

Client - ATC Client's Sample ID ATC-0401-150M-DX2 Lab Sample IO 103451365 Filename U20502B_11 Injected By BAL Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 04/01/2002 ICAL Date 04/16/2002 Received 04/09/2002 CCal Filsnamefs) U20502B_01 & U20502B_12 Extracted 04/24/2002 Method Blank IO BL^NK-1588 Analyzed 05/03/2002 04:51 Nativ® Cone EMPC LRL (ntemal ng'S Percent SsomsB’s ng/m2 ng/m2 ng/m2 Standards Adders Recovery 2,3,7,8-TCDF ND 0.0020 2,3,7,8-TCDF-13C 2.00 64 Total TCDF ND 0.0020 2,3,7,8-TCDD-13C 2.00 74 1,2,3,7,8-PeCDF-13C 2.00 63 2,3,7,8-TCDD ND 0.0036 A 2,3,4,7,8-PeCDF-13C 2.00 60 Total TCDD 0.056 0.0020 B 1,2,3,7,8-PeCDD-13C 2.00 72 1,2,3,4,7,8-HxCDF-13C 2.00 84 1,2,3,7,8-PeCDF ND 0.0100 1,2,3,6,7,8-HxCDF-13C 2.00 77 2,3,4,7,8-PeCDF ND 0.0100 2,3,4,6,7,8-HxCDF-13C 2.00 79 Total PeCDF ND 0.0100 1,2,3,7,8,9-HxCDF-13C 2.00 83 1,2,3,4,7,8-HxCDD-13C 2.00 91 1,2,3,7,8-PeCDD ND 0.0100 1,2,3,6,7,8-HxCDD-13C 2.00 85 Total PeCDD ND 0.0100 1,2,3,4,6,7,8-HpCDF-13C 2.00 94 1,2,3,4,7,8,9-HpCDF-13C 2.00 102 1,2,3,4,7,8-HxCDF ND 0.0100 1,2,3,4,6,7,8-HpCDD-13C 2.00 102 1,2,3,6,7,8-HxCDF ND 0.0100 OCDD-13C 4.00 103 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 81 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: 0.000032 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 OCDD 0.032 0.0200 BJ 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-noiss 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 No.... 02-1056082

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

CITY_21MC100_002894495

NYC-WTC_000224767