NYC-WTC_000202108

NYC 9/11 Public Portal Document

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

^ace Analytical_______ __ Method 8290 Analysis Results Tel: 612-607-1700 Fax- 61?- 607-64-44

Client - ATC Client's Sample ID ATC-0207-89M-DX1 Lab Sample ID 103311742 Filename U20227A_11 Injected By BAL Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 02/07/2002 ICALDate 02/26/2002 Received 02/08/2002 CCal Filename(s) U20227A_01 &U20227A_14 Extracted 02/19/2002 Method Blank ID BLANK-1476 Analyzed 02/27/2002 16:40 Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,8-TCDF ND 0.00200 2,3,7,8-TCDF-13C 2.00 74 Total TCDF ND 0.00200 2,3,7,8-TCDD-13C 2.00 66 1,2,3,7,8-PeCDF-13C 2.00 75 2.3,7,8-TCDD ND 0.00200 2,3,4,7,8-PeCDF-13C 2.00 64 Total TCDD ND 0.00200 1,2,3,7,8-PeCDD-13C 2.00 64 1.2,3,4,7,8-HxCDF-13C 2.00 88 1,2,3,7,8-PeCDF ND 0.01000 1,2,3,6,7.8-HxCDF-13C 2.00 73 2.3,4,7,8-PeCDF ND 0.01000 2,3,4,6,7.8-HxCDF-13G 2.00 66 Total PeCDF ND 0.01000 1,2,3,7.8,9-HxCDF-13C 2.00 70 1,2,3.4,7,g-HxCDD-13C 2.00 56 1,2,3,7,8-PeCDD ND 0.01000 1,2,3,6,7,8-HxCDD-13C 2.00 62 Total PeCDD ND 0.01000 1,2,3,4,6,7,8-HpCDF-13C 2.00 51 1,2,3,4,7,8,9-HpCDF-13C 2.00 44 1,2,3.4,7,8-HxCDF ND 0.01000 1,2,3,4,6,7,8-HpCDD-13C 2.00 49 1,2,3,6,7,8-HxCDF ND 0.01000 OCDD-13C 4.00 31 P 2,3,4,6,7,8-HxCDF ND 0.01000 1,2,3,7,8,9-HxCDF ND 0.01000 1,2,3.4-TCDD-13C 2.00 NA Total HxCDF ND 0.01000 1,2,3,7,8,9-HxCDD-13C 2.00 NA

1,2.3,4,7,8-HxGDD ND 0.01000 2,3,7,8-TCDD-37CI4 0.20 73 1,2,3,6,7,8-HxCDD ND 0.01000 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 1,2,3,4,7,8,9-HpCDF ND 0.01000 Equivalence: 0.00 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 0.032 0.02000 I

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 No.....02-1053890

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

CITY_21MC100_005390265

NYC-WTC_000202110