NYC-WTC_000219094

NYC 9/11 Public Portal Document

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

^ace Analytical__________ Method 8290 Analysis Results Tel: 612-607-1700 Fax: 612- 607-6444 / Client - ATC Client's Sample ID ATC-1220-89M-DX4 Lab Sample ID 103233920 Filename F11228B_06 Injected By BAL II Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 12/20/2001 ICAL Date 11/19/2001 Received 12/21/2001 CCal Filename(s) F11228B_01 & F11228B_16 Extracted 12/23/2001 - Method Blank ID BLANK-1389 Analyzed 12/29/2001 01:30 i /I Native Cone EMPC LRL Internal ng‘s Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,8-TCDF 0.0026 0.00200 J 2,3,7,8-TCDF-13C 2.00 58 I Total TCDF

2,3,7,8-TCDD 0.0540

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 2.00 72 59 59 Total TCDD 0.0840 0.00200 1,2,3,7,8-PeCDD-13C 2.00 71 1,2,3,4,7,8-HxCDF-13C 2.00 73 1 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-13C 2.00 74 Total PeCDF 0.0220 0.01000 J 1,2,3,7,8,9-HxCDF-13C 2.00 71 1,2,3,4,7,8-HxCDD-13C 2.00 98 1,2,3,7,8-PeCDD ND 0.01000 1,2,3,6,7,8-HxCDD-13C 2.00 78 Total PeCDD 0.1000 0.01000 1,2,3,4,6,7,8-HpCDF-13C 2.00 72 1,2,3,4,7,8,9-HpCDF-13C 2.00 67 1,2,3,4,7,8-HxCDF ND 0.01000 1,2,3,4,6,7,8-HpCDD-13C 2.00 81 1,2,3,6,7,8-HxCDF ND 0.01000 OCDD-13C 4.00 56 2,3,4,6,7,8-HxCDF ND 0.01000 fT 1,2,3,7,8,9-HxCDF ND 0.01000 1,2,3,4-TCDD-13C 2.00 NA Total HxCDF 0.0200 0.01000 J 1,2,3,7,8,9-HxCDD-13C 2.00 NA tJ 1,2,3.4,7,8-HxCDD ND 0.01000 2,3.7,8-TCDD-37CI4 0.20 75 1,2,3,6,7,8-HxCDD ND 0.01000 1,2,3,7,8,9-HxCDD ND 0.01000 y Total HxCDD 0.1600 0.01000 1,2,3,4,6,7,8-HpCDF 0.0210 0.01000 J Total 2,3,7,8-TCDD 1,2,3,4,7,8,9-HpCDF ND 0.01000 Equivalence: 0.0013 ng/m2 Total HpCDF 0.0210 0.01000 J (Using ITE Factors)

1,2,3,4,6,7,8-HpCDD 0.0480 0.01000 J Total HpCDD 0.0890 0.01000 J

OCDF 0.0230 0.02000 J OCDD 0.3100 0.02000 R 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.... 01-1052540

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_000219100