NYC-WTC_000204954

NYC 9/11 Public Portal Document

1700 aril street ■ Suite 200 Minneapolis, MN 55414

weAnalyticar ____ Method 8290 Analysis Results Tai: 612-607-1700 Tax; 61,2- 607-5Aa4

Client- ATC Client’s Sample ID ATC-0427-STY-DX13 Lab Sample ID 103513354 Filename 7 7 F20523A_11 . .. Injected By BAL • Total Amount Extracted 0.16 g Matrix DUST % Moisture ^ NA Dilution NA Dry Weight Extracted NA Collected 04/27/2002 ICALDate 05/0472002 Received 05/01/2002 CCal Filename{s) F20523A_05 & F20523A_20 Extracted 05/20/2002 Method Blank ID BLANK-1633 Analyzed 05/23/2002 21:03 Native Cone EMPC LRL Internal ng’s Percent Isomers nq/Kg • ng/Kg ng/Kg Standards Added Recovery 24 JA 2,3,7,8-TCDF-13C 2.00

2,3.7,8-TCDD ND 12 25 A 2,3,7,8-TCDD-13C 1,2,3,7.8-PeCDF-l3C 2,3,4,7,8-PeCDF-13C 2.00 2.00 •Ir Total TCDD 7 410 12 1,2.3,7,8-PeCDD-13C IS - i 1.2,3.7,8-PeCDF ND 1,2,3,4,7,8-HxCDF-13C 1,2,3,6,7.8-HxCDF-13C IS < 2,3.4,7,8-PeCDF : Total PeCDF 4^ Iy 2,3,4,6,7,8-HxCDF-13C 1,2,3,7,8,9.HxCDF-13C 2.00 Z : . - 86 ;/,'

i 2.00- 1,2,3,4.7,8-HxCDD-13C 7 7 1,2,3,7,8-PeCDD ND 1,2,3,6,7,8-HxCDD-13C 7: 2.00 - Total PeCDD ... 7 490 §7 1,2,3.4.6,7,8-HpCDF-13C 2.00 ; ; 1.2,3,4,7.8,9-HpCDF-13C 2.00/ 7 Y. 45 g'’' 130 7 62 J 1.2,3.4,6.7,8-HpCDD-13C / 2.00 7 / ?-3-4’S-Z’8-HxCDF 7777 . Y100 , ; 150 62 J ■ OCDD-13C ; \ 62 . J 7 ■ 4.00/Y . S’ 7 1,2,3,7,8,9-HxCDF. K ND ' 62Y'7177, AS,4^000-130' 7 7 2.00 NA Total HxCDF 7 910 7 7/62 1,2.3,7.8,9-HXCDD-13C; 2.00 ; 77 7 nA

1,2.3.4,7,8-HxCDD7 - ND ' 62 ' /7 2,3,7,8-TCDD-37CI4 Z..;/- 0.20 77/■79//'/ 7 ■ 1.2,3.6,7.8-HxCDD/ -1,2,3,7,8,9-HxCDD ■ Total HxCDD 7 7 J 62 ■;

1,2,3.4.6,7,8-HpCDF Total 2,3,7,8-TCDD 1.2,3,4,7,8,9-HpCDF Equivalence; 120 ng/Kg Total HpCDF , ■; 600 7 62 (Using ITE Factors) 1,2,3,4,6,7,6-HpCDD ■ g ■ 7 Total HpCDD . ;, : . ; , 2300 ; OCDF ; 650/ . OCDD ' 5100 Results reported on a total weight basis LRL = Lower Reporting Limit Cone = Concenvation (Totals include 2,3,7,a-substituted isomers) I = Interforsnce EMPC = Estimaisd Maximum Possible Concentration E = PCDE Interfarance ; A = Detection Limit based on signal-to-noise measuromant S = Saturated signal . J = Concentration detected is below the calibration range ND = Not Detected 7 7 B = Less than 10 times higher than method blank Isvai NA = Not Applicablo P = Recovery outside of target range < NC = Not Calculated ■ ; 7 Nn = Value obtained from additional analysis . , •= See Discussion Report No.... 02-1057132

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except In lull, without die written consent of Pace Analytical Services, Inc.

CITY_21MC100_008987356

NYC-WTC_000204955