NYC-WTC_000204954

NYC 9/11 Public Portal Document

1700 Bm Street - Suits 200 MinneapollG, MN 55414

'^aceAnalytical_________ _ Method 8290 Analysis Results Tat: 612-307-1700 Fax: 512- «07-6iU4

Client-ATC I- I Client’s Sample ID ' ATC-0427-STY-DX12 Lab Sample ID 103513347 Filename , F2O523A_1O 7 Injected By T. BAL ■■ Total Amount Extracted 0.05 g Matrix DUST % Moisture ■ : NA 1 Dilution NA Dry Weight Extracted NA Collected 04/27/2002 iCALDate 05/04/2002 Received 05/0172002 . CCal Filename(s) F20523A_05 & F20523A_20 Extracted 05/20/2002 Method Blank ID 7 BLANK-1633 Analyzed 05/23/2002 20:14 Native Cone EMPC LRL Internal ng’s Percent Isomers ng/Kg ng/Kg ng/Kg Standards Added Recovery 2.3,7,8-TCDF-13C 1 2,3,7,8-TCDF Total TCDF i ■. el? - 1g . 2,3,7.8-TCDD-l3C 1,2.3,7,8-PeCDF-13C 2,3,7,8-TCDO .• / Total TCDD ND 540 53 A 40 B 2,3,4,7,8-PeCDF-13C 1,2,3.7,S-PeCDD-13C 70 " IS 7 / JT: 1.2,3,4,7,8-HxCDF-13C 2.00 , 85 . 1,2,3,7,8-PeCDF 200 1,2,3.6,7,8-HxCDF-13C 2.00 7 .2,3,4,7.8-P6CDF i.- Total PeCDF ■ 1,2,3,7,8-PeCDD 17 . Total PeCDD. . 71 / - ND 7 7 210 : ■ ND ■ : 800 1' 200 - 200 J 200 i - 200 J 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 1,2,3,6,7,8-HxCDD-13C 1,2,3.4,6.7,8-HpCDF-13C 2.0017 2.00 2.00 7 /■. 90i., 77. 2.00 / < / ' 68 ; j I 1'1 1,2.3,4,7,8,9-HpCDF.13C 1/2,00 <7-52.77^' , 7 1,2,3.4.7,8-HxCDF 260 7 7 200 E l 1,2,3,4,6,7,8-HpCDD-13C 7 2.00 1,2,3,6,7,8-HxCDF.. nd ---- 20Q OCDD-^3C 4.00- '320 ----- 7/.^ 1 1,2.3,7,8,9-HxCDFi 1 1 7 nd 7 / ------- 7 1 200 1,2,3.4-TCDD-13C - 2.00 7 7 -^ NA 7 TotalHxCDF 1100 /7 -- 7 / 200 / / 1,2,3,7,8,9-HxCDD-l3C 2.00 T NA '

’9’3'4.7,8-HxCDD T 71 nd 200/ 2,3,7,8-TCDD-37Cl4 0.20 85 17 1.2,3,6,7,8-HxCDD ' 250 1 1,2,3,7,8,9-HxCDD -. 7- ND 7 . ' Total HxCDD 4100 999 ■ .200' ■ ;■ ■ Y'l ' ■'ll'I-/: :

1,2,3,4.6,7,8-HpCDF 1100 200 Total 2,3.7,8-TCDD 7 ' 1,2,3,4,7,8,9-HpCDF 200 d ■ Equivalence: 1.20 ng/Kg Total HpCDF - 7 200 (Using ITE Factors) 1,2,3,4,6,7,8-HpCDD 2600 1 Total HpCDD 5500 200 • OCDF OCDD / •W: 400 J 400 Results reported on a total weight basis LRL = Lower Reporting Until Cone = Concentration fTotals Include 2,3,7,3-substituted isomers) ! = Interference EMPC = Estimated Maximum Possible Concentration E = PCDE Intarferance A = Detection Limit based on signal-to-noisa measurement 7 S = Saturated signal J = Concentration detected is below the calibration range ND = Not Detected ' B = Less than 10 times higher than method triank level i NA = Not Applicable P = Recovery outside o( target range i NC = Not Calculated Nn = Value obtained from additional analysis ’ = See Discussion/ T • ' Report NO.....02-1057132

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

CITY_21MC100_008987355

NYC-WTC_000204954