Appendix B laboratory analysis report, confidential

NYC 9/11 Public Portal Document

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

^ace Analytical__________ Tel: 612-607-1700 Fax: 612- 607-6444 Method 8290 Analysis Results Client - ATC ASSOCIATES Client's Sample ID ATC-0503-M894-DX1 Lab Sample ID 103517280 Filename F20513B_04 Injected By MRO Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 05/03/2002 I CAL Date 05/04/2002 Received 05/07/2002 CCal Filename(s) F20513A_14 & F20514A_01 Extracted 05/10/2002 Method Blank ID BLANK-1616 Analyzed 05/13/2002 22:14 Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,8-TCDF ND ' 0.0027 A 2,3,7,8-TCDF-13C 2.00 66 1 Total TCDF ND 0.0020 2,3,7,8-TCDD-13C 2.00 66 1,2,3,7,8-PeCDF-13C 2.00 66 2,3,7,8-TCDD ND 0.0035 A 2,3,4,7,8-PeCDF-13C 2.00 68 Total TCDD 0.015 0.0020 1,2,3,7,8-PeCDD-13C 2.00 68 0 1,2,3,7,8-PeCDF 2,3,4,7,8-PeCDF ND ND 0.0100 0.0100 1,2,3,4,7,8-HxCDF-13C 1,2.3,6,7,8-HxCDF-13C 2,3,4,6,7,8-HxCDF-13C 2.00 2.00 2.00 97 95 92 Total PeCDF ND 0.0100 1,2,3,7,8,9-HxCDF-13C 2.00 86 1,2,3,4,7,8-HxCDD-13C 2.00 97 1.2,3.7,8-PeCDD ND 0.0100 1,2,3,6,7,8-HxCDD-13C 2.00 87 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 82 1,2,3,4,7,8-HxCDF ND 0.0100 1,2,3,4,6,7,8-HpCDD-13C 2.00 86 1,2,3,6.7,8-HxCDF ND 0.0100 OCDD-13C 4.00 90 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 j 1,2,3,4,7,8-HxCDD ND 0.0100 2,3,7,8-TCDD-37CI4 0.20 69 1,2,3,6,7,8-HxCDD ND 0.0100 I 1,2,3,7,8,9-HxCDD ND 0.0100 I 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 J LRL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7,8-subs«tuted 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 'j Report No.... 02-1057195

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full.

'i without the written consent of Pace Analytical Services, Inc.

CONFIDENTIAL, CITY_21MC100_003432105 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

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