NYC-WTC_000213019

NYC 9/11 Public Portal Document

1700 Em Street - Sute 200 Minneapolis, MN 55414 a I t I™

^aceAnalytical__________ Method 8290 Analysis Results Tei: 612-607-1700 Far 61 ?- 607-6444

Client - ATC Client's Sample ID ATC-0427-STY-DX11 Lab Sample ID 103513560 Filename F20525B-08 Injected By BAL Total Amount Extracted 0.18 g Matrix DUST % Moisture NA Dilution NA Dry Weight Extracted NA Collected 04/27/2002 ICAL Date 05/04/2002 Received 05/01/2002 CCal Filenamefs) F20525A_17 & F20525B_16 Extracted 05/21/2002 Method Blank ID BLANK-1634 Analyzed 05/26/2002 12:23 Native Cone EMPC LRL Internal ng’8 Percent isomers ng/Kg ng/Kg ng/Kg Standards Added Recovery 2,3,7,8-TCDF ND 11.0 2,3.7,8-TCDF-13C 2.00 50 Total TCDF ND — 11.0 2,3,7.8-TCDD-13C 2,00 47 1.2,3,7,8-PeCDF-13C 2.00 51 2,3,7,8-TCDD ND 11.0 2.3,4,7,8-PeCDF-13C 2.00 52 Total TCDD 35 11.0 BJ 1,2,3.7,8-PeCDD-13C 2.00 52 1,2,3,4,7,8-HxCDF.13C 2.00 86 1,2.3,7,8-PeCDF ND 56.0 1,2,3,6,7,8-HxCDF-13C 2.00 94 2,3,4,7,8-PeCDF ND 56.0 2,3,4.6,7,8-HxCDF-13C 2.00 77 Total PeCDF ND 56.0 1,2,3,7,8.9-HxCDF-13C 2.00 56 1.2,3,4,7,8-HxCDD-13C 2.00 84 1.2,3.7.8-PeCDD NO 56.0 1,2,3,6,7.8-HxCDD-13C 2.00 88 Total PeCDD ND S6.0 1,2.3,4,6,7,8-HpCDF-13C 2.00 82 1,2,3,4,7.8,9-HpCDF-13C 2.00 61 1,2,3,4.7,8-HxCDF ND 56.0 1.2,3,4,6,7.8-HpCDD-13C 2.00 58 1,2,3,6,7,8-HxCDF ND 56.0 OCDD-13C 4.00 48 2,3,4,6,7,8-HxCDF ND 56.0 1,2,3,7,8,9-HxCDF ND 56.0 1.2.3,4-TCDD-13C 2.00 NA Total HxCDF ND 56.0 1,2,3,7.8,9-HXCDD-13C 2.00 NA 1,2,3,4,7,8-HxCDD ND 56.0 2,3,7,8-TCDD-37Cl4 0.20 53 1,2,3,6,7,8-HxCDD ND 56.0 1,2,3,7,8.9-HxCDD ND 56.0 Total HxCDD ND 56.0 1,2,3,4,6,7,8-HpCDF ND 56.0 Total 2,3,7,8-TCDD 1,2,3,4,7,8,9-HpCDF ND 56.0 Equivalence: 0.19 ng/Kg Total HpCDF ND 56.0 (Using ITE Factors) 1.2,3,4,6.7.8-HpCDD ND 56.0 Total HpCDD ND 56.0 OCDF ND 110.0 OCDD 190 110.0 8J Results reported on a total weight basis LRL = Lower Reporting Limit Cone > ConcentmtiOP (Total# include 2,3.7,B-sub3titutdd Isomers) I = Intarlsranca EMPC o Estimated Maximum PossiCle Concentration E 3 PCDE Interference A = Detection Limit Dosed on signal-to-noise measurement S = Saturated signal u = Concentration detected is below the calibration rang# ND s= Not Detected B 3 Less then to times highsr than method blank level NA s Not AppiicaOie P - FlBCovory outside of target range NC = Not calculated Nn < Value obtalrted tnm addttianai analysis • = See Discussion Report No.... 02-1057132

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

CITY_21MC100_002867950

NYC-WTC_000213029