NYC-WTC_000204954

NYC 9/11 Public Portal Document

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Tai: 612-607-1700 Fax: 612- 607-64^14 Method 8290 Analysis Results Client-ATC Client's Sample ID ATC-0427-STY-DX14 Lab Sample ID 103513362 .Filename F20523A_12 Injected By BAL Total Amount Extracted 0.37 g Matrix DUST . % Moisture NA Dilution NA Dry Weight Extracted NA Collected 04/27/2002 ICALData 05/04/2002 Received 05/01/2002 CCal Filename(s) F20523A_Q5 & F20523A_20 Extracted 05/20/2002 Method Blank ID BLANK-1 S33 Analyzed 05/23/2002 21:52 Native Cone EMPC LRL Internal ng’s Percent Isomers ng/Kg ng/Kg ng/Kg Standards Added Recovery 2,3,7.8-TCDF-13C 2.00

I ' 26 ‘^4 400 2.3,7,8-TCDD-13C 2.00 ' 1,2,3.7,8-PeCDF-13C 2,3,7.8-TCDD ND a.q A 2,3,4,7,8-PeCDF-13C 2.00 1-22 Total TCDD 280 1,2.3.7.8-PgCDD-13C 2-22

i 5.4 1,2,3,4,7,8-HxCDF-13C 2.00 7, l.2,3.7,B-PeCDF ND - 27.0 1,2.3,6,7.8-HXCDF-13C 2,3,4.7.8-PeCDF 27.0 J 2,3,4,6,7,B-MxCDF-13C o22 1-22 ■7 Total PeCDF 7: 27.0 1,2,3.7.8,9-HXCDF-13C 2.00 1,2.3,4,7,S-HxCDD.13C 2.00 7 7 7 1,2,3,7,8-PeCDD .77/777.,. ___. 30 7 27.0 1 1,2,3.5.7,8-HXCDD-13C 7 2.00 Total PeCDD 7 7 777^^ 3^^ 7-.- > 7.27.O,7;T;,; 1,^.4,6.7,S-HpOTFl^'.^T 2.00. 7 ; 1,2,3,4.7,8-HxCDF . E 7- i,2,3.4,6,7,8-HpCDD-13C .2,00. : 7 1,2.3.6.7.8-HxCDF, 85 27.0 E 7 OCDD-13C 4.00 2,3.4,6,7,8-HxeDF 7 ,7-77/ 27.0 7.. T--' 7 .,.-7 7.,7-777 . .7 7^77., 1,2.3.7,8,9-HxCDF 7 27’0 loo NA Total HxCDF . 500 27.0 J 2,3,7,a-TCDD.37Cl4 7 0.20- 777 75 ,7 1,2,3.6,7,8-HxCDD ’ -7.7-27.0 J 7-7 1.2,3,7,8.9-HxCDD Total HxCDD 77 7 7 vSS 7 :g:a' - 77 1.2,3,4,6,7.a-HpCDF - 530 27.0 Total 2,3.7,8-TCDD 1.2,3,4,7,8,9-HpCDF 100 50.0 lA Equivalence; 100 ng/Kg Total HpCDF 530 ---- 27.0 (Using ITE Factors)

7 7 1,2,3,4.6,7,8-HpCDD Y 27.0 ■ Total HpCDD 1222 2200 7 27.0 7

; 7 OCDD ■ ■ > 7292 9000 ^ Results reported on a total weight basis -as LRL = Lower Reporting Limit Cone = Concentration (Totals Include 2,3,7,8-substitutBd isomers) I = Interference EM PC = Estimated Maximum Possible Concentration E = PCDE IntsrferancB , ^,7 A = Oatection Limit based on signal-to-noise measurement S = Saturated signal 7 7 ■ J - Concentration detected is below the calibration range ND = Not Detected B = Less than 10 times higher than method blank level NA = Not Applicable 77 P = Recovery outside of target range NC = Not Calculated 7y7^ Nn = Value obtained from additional analysis * E See Discussion Report No.... Q2-1057132

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, withoirt the written consent of Pace Analytical Services, Inc.

CITY_21MC100_008987357

NYC-WTC_000204956