NYC-WTC_000223243

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 Tei; 612-607-1700 Fax: 612- 607-6444

Client - ATC Client's Sample ID ATC-0410STY-DX2 Lab Sample ID 103468245 Filename F20429A_10 Injected By BAL Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 04/10/2002 ICAL Date 04/12/2002 Received 04/16/2002 CCal Filename(s) F20429A_01 & F20429A_15 Extracted 04/24/2002 Method Blank ID BLANK-1592 Analyzed 04/29/2002 17:36 Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2.3,7,8-TCDF 0.0051 0.0040 JA 2,3,7,8-TCDF-13C 2.00 57 Total TCDF 0.2000 0.0020 2,3,7,8-TCDD-13C 2.00 62 1,2,3,7,8-PeCDF-13C 2.00 67 2.3,7,a-TCDD ND 0.0037 A 2,3,4,7,8-PeCDF-13C 2.00 62 Total TCDD 0.4100 0.0020 B 1,2,3,7,8-PeCDD-13C 2.00 68 1,2,3,4,7,8-HxCDF-13C 2.00 81 1,2,3,7,8-PeCDF ND 0.0100 1,2.3.6,7,8-HxCDF-13C 2.00 62 2,3,4,7,8-PeCDF ND 0.0100 2,3,4,6,7,8-HxCDF-13C 2.00 67 Total PeCDF 0,0300 0.0100 J 1,2,3,7,8,9-HxCDF-13C 2.00 62 1,2,3,4,7,8-HxCDD-13C 2.00 83 1.2.3.7,8-PeCDD NO 0.0100 1,2,3,6,7,8-HxCDD-13C 2.00 71 ! Total PeCDD 0.1100 0.0100 1,2,3,4,6,7,8-HpCDF-13C 2.00 J 68 1,2,3,4,7,8,9-HpCDF-13C 2.00 60 1,2,3.4,7,8-HxCDF ND 0.0100 1,2,3,4,6,7,8-HpCDD-13C 2.00 76 1,2,3,6,7.8-HxCDF ND 0.0100 OCDD-13C 4.00 50 I 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 0.0120 0.0100 J 1,2,3,7,8,9-HxCDD-13C 2.00 NA 1 1 1,2,3,4,7,8-HxCDD ND 0.0100 2,3.7.8-TCDD-37CI4 0.20 68 1,2,3,6,7,8-HxCDD ND 0.0100 1,2,3,7,8,9-HxCDD ND 0.0100 Total HxCDD 0.0550 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: 0.00099 ng/m2 Total HpCDF ND 0.0100 (Using ITE Factors) 1.2.3.4,6,7.8-HpCDD 0.0240 0,0100 J Total HpCDD 0.0490 0.0100 J I t OCDF 0.0240 0.0200 J OCDD 0.2100 0.0200 LRL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7,8-sutwtltuted isomers) I = Interference EMPC ■ Estimated Maximum Possible Concentration E = PCDE Interference A = Detection Limit based on signal-to-nolse measurement S = Saturated signal J a Concentration detected is below the calibration range NO = Not Detected B z Less than 10 times higher than method blank level NA = Not Applicable P = Recovery outside of target range NC = Not Calculated Nn s Value obtained from additional analysis * = See Discussion Report No.... 02-1056372

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_000223245