NYC-WTC_000204954

NYC 9/11 Public Portal Document

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Client's Sample ID ATC-0427-STY-DX25 Lab Sample ID 103513586 Filename Y \ F20525B_10 Injected By ■ ■ -BAL/ -Z. ^Y Y Y- .Y--,Y Total Amount Extracted 0.09 g Matrix dust Z % Moisture NA Dilution NA Dry Weight Extracted NA Collected 04/27/2002 ICALDate 05/04/2002 Received 05/01/2002 CCal F)lename(s) F2052SA_17 & F20525B_16 Extracted 05/21/2002 Method Blank ID < 77 BLANK-1634 Analyzed 05/26/2002 14:02 7 : Native Cone EMPC URL ng’s Percent Isomers ng/Kg ng/Kg ng/Kg Standards Added Recovery 2,3,7,8-TCDF ------- 31 2'3.7,8-TCDF.13C Total TCDF 430 2,3,7,8-TCDD-13C 1.2,3,7,B-PeCDF-13C . 2.00 - z 7 2.3.7,8.TCDD ND 2.3.4.7,8-PeCDF-13C Total TCDD 580 1.2,3.7,8-P6CDD-13C ’S 2.00 J 1,2,3.4,7,8-HxCDF.13C 1.2,3.7,8-PbCDF. ND 110 1.2,3,6.7,8-HxCDF-13C ■? J-S 2.00 7 2.3.4,7.8-P6CDF Y Total peCDF ' ND 130 ; HL 2,3,4,6.7,8-HxCDF-13C 1.2,3,7,8.9-HxCDF-13C , 7 1,2,3,4,7,8-HxCDD-13C 2.00 i . 2.00 2.00, 105 7 122 1.2.3.7.8-PeCDD ND 11,2,3,6,7,8-HxCDD-13C 2.00 Z ■ Total PeCDD ■ Y 110 J 1,2,3.4,6.7.8-HPCDF-13C 2.00 ’

I 1,2,3,4,7,8,9'HpCDF-13C 2.00 1,2,3,4,6,7,8-HpCDD-13C Z 2.00 NO OCDD-13C L 4.00;

7iY TotalHxCDF ND 210 'Y 7 77 .TIL 110 J 7 ; .11.2,3,4-TCDD-13C ,2,3,7,8,9-HxCDD-13C 7 2.00 2.00 NA NA ? .-777 Y 7 T,2,3,4,7,8-HxCDD ND ■ 110 < 2,3,7.a-TCDD-37Cl4 0.20 Y;Y7 116 / ■'’2.3-6.7.8-HxCDD ND y Y 110 7 1,2,3,7,a,9-HxCDD - ND TotalHxCDD 7 Y,A7 ,7 2 1!S J ;y:

1,2,3,4,B,7.8-HpCDF 210 110 J Total 2.3,7,8-TCDD 1.2,3.4,7,8,9-HpCDF ND 115 , Equival^: 4.6 ng/Kg . Total HpCDF 320 . 110 J (Using ITE Factors) - Y Z 1,2.3,4,6,7.8-HpCDD 170 ; Total HpCDD , , . 7'Z Z 340 Z 7 U ■ OCDF 7Z / ND ■ 220 OCDD 870 220 BJ Results reported on a total weight basis LRL - Lower Reporting Limit Cone = Concentration (Totals indude 2,3,7,8-substituted Isomers) I = hterlerencs EMPC = Estimaisd Maximum Possible Concentration E = PCDE Interference .. A = Detection Limit based on signal-to-nolse measurement s = saturated signal J = Conceniration detected is below the calibration range ND = Not Detected A B = Less man 10 times Higher than method blank level ; NA = Not Applicable / : 7 / 7 P = Recovery outside of largat range NC = Not Calculated Y /?- Nn = Value obtained from additional analysis Y , 7 ' = See Plscussion' 7- Z Report NO.....02-10S7132

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

CITY_21MC1OO_OO8987368 NYC-WTC_000204967