NYC-WTC_000204954

NYC 9/11 Public Portal Document

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^ace Analytical ________ Method 8290 Analysis Results Tai; 612-607-1700 Frx: 512- ao7-6M4

Client-ATC Client's Sample ID ATO0427-STY-DX21 Lab Sample ID 103513438 Filename F20524A_0S injected By '-: MRO Total Amount Extracted 0,13 g Matrix DUST % Moisture NA Dilution NA Dry Weight Extracted NA Collected 04/27/2002 ICALDate 05/04/2002 Received 05/01/2002 CCal Filename(s) F20524A_01 & F20524AJ5 Extracted 05/20/2002 Method Blank ID • • BLANK-1633 Analyzed 05/24/2002 14:58 Native Cone EMPC LRL Internal ng's Percent Isomers ng/Kg nnZKg ng/Kg Standards Added Recovery 2.3,7,^CpF 35 15.0 J 2,3,7,8-TCDF-13C ■ Total TCDF 790 15.0 2.3,7,8-TCDD-13C 1,2.3,7.8-P0CDF-13C 2,3,7,8-TCDD Total TCDD ND 520 16.0 A 15.0 2.3,4,7,8-PeCDF-13C 1,2,3.7.8-PeCDD-13C YlS^tvg.; 1.2,3.4,7,8-HxCDF-13C 2.00 - 7^ : ■ 1,2,3,7,a-PeCDF ND 1,2,3,6.7,3-HxCDF-13C 2.00 89 2,3,4.7,8-PeCDF : ; ND 2.3.4,B,7,8-HxCDF-13C 2,00 / 87.. y , Total PgCDF : 190 1.2,3,7,8,9-HxCDF-13C 2.00 7 ’ 88 ■ r ; 1,2,3,7,8-PeCDD : ■ ND 77.0 ; S 1,2,3.6,7,8-HxCDD-13C 7 7 2.00 l-SS ; , ' Total PeCDD ; 200 Y 77.0 J 7 1.2,3,4,S,7,a-HpCDF-13C ' 2.OO 77 . 1.2,3,4.7,8.9-HpCDF-13C ? 2.00^^^Y F 87 77.0 E 1.2.3,4,5,7,e-HpCDD-13C 2.00 7 7 7 7 67 1,2,3.6,7,8-HxCDF ---- 77.0 7 OCDD’13C 7 ; ; 4.00 . 56 2,3,4.6,7,8-HxCDF ND 77; 77.0 1,2,3,7,8,9-HxCDF ND 7 77.0 1.2,3,4-TCDD-13C . 2.00 NA ' Total HxCDF 7 7 ; 130 . 77.0 J ; 7 1.2,3.7.8,9-HxCDD-13C 7 7 7 2.00 NA Y 1,2,3,4,7.8-HxCDD 7 7 77.0 2,3.7,8-fCDD-37a4 0.20 78 1,2,3,6,7,8-HxCDD7 T ND 1 ,2,3,7,8,9-HxCDD ■ T; \ ND / ; Total HxCDD . 410 .,7 . 77.0 ■. . 77777'-/.77.

1,2,3.4,6,7,8-HpCDF Total 2,3,7.8-TCDD 1,2,3,4,7.6,9-HpCDF . ND. ■ d Equivalence: 13 ng/Kg Total HpCDF ; 7- 7 ‘ 200 (Using ITE Factors) . 1,2.3,4.6,7,8-HpCDD Total HpCDD y , T 77-0 , ' OCDF OCDD Results reported on a total weight basis LRL = Lower Reporfing Limit Cone = Conesntraton (Totals induda 2,3,7,8-6ubsniuted isomars) I = Interference EMPC = Estimatad Maximum Possible Concentration E = PCDE Interference ' A = Detection Limit based on signal-to-noisa 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 NO = Not Calculated Nn = Value obtained from addiHonal analysis ; / * = See Discussion 7^ Report N0.....O2-1057132

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Seivicas, Inc.

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NYC-WTC_000204963