NYC-WTC_000204954

NYC 9/11 Public Portal Document

1700 Elm Street- Suits 20C Minneapolis, MN 55414 J

^aceMytical______ Method 8290 Analysis Results Tsi; 612-607-1700 Fay: SI?- 507-6444

Client-ATC Client's Sample ID . ATC-0427-STY-DX22 Lab Sample ID 103513446 Filename F20524A_09 Injected By ■ MRO Total Amount Extracted ;o.iig - I Matrix DUST % Maisture NA Dilution NA Dry Weight Extracted NA Collected 04/27/2002 ICALDate 05/04/2002 Received 05/01/2002 CCal Filename(s) F20524A_01 &F20524A_15 Extracted 05/20/2002 Method Blank ID BLANK-1633 Analyzed 05/24/2002 15:48 Native Cone EMPC lrl Titsmal ng’s Percent Isomers ng/Kg ng/Kg ng/kq Standards Added Recovery 2.3.7,S-TCDF "J T,3.7,8-TCDF-13C Y 73 . ■ Total TCDF; 8 ; 7;=g = 16.0 2.3,7,S-TCDD-13C ?aS < 2,3,7,8-TCDD Total TCDD

1,2,3.7,8-PeCDF Total PeCDF ND - 2,3,4,7,8-PeCDF; YH,-> ■’ nd ; ND ND 4S0 , 18.0 18.0

11;? . 91.0 1,2.3,7,8-PeCDF-13C 2,3,4,7.8-PeCDF-l3C . 1.2,3,7,8-PeCDD-13C 1,2.3,4,7,8-HxCDF-13C 1,2,3,6,7.8-HxCDF-13C 1.2,3,7.8.9-HXCDF-13C - 2.00

2.00 2.00 2.00 1s 1.2.3,4,7,8.HxCDD-13C 2.00

I 1,2,3,7.8-P6CDD ND'y- 3 : 91.0 ; 1,2,3,6.7,8-HxCDD-13C 2.00 .. Total PeCDD;; ;,;; ND; ’ 91-0 8 -Y; ND 91.0 1,2,3,4,6,7.8-HpCDD-13C . 2.00 Y 91.0 - ; ; ; ■ 4.00 / 2,3,4,6.7,8-HxCDF -•••; 91.0: ■ 1,2,3,7,3,9-HxCDF ND 7 91.07 1,2,3.4-TCDD-13C - 2.00 NAY; 7 Y Total HxCDF ■150" 7 91.0 J 1,2.3.7.8,9-HxCDD-13C - 2.00 ■ NA Y 1,2,3.4,7,8-HxCDD , 91.0 2,3,7,8-TCDD-37CI4 . " - 0.20 77- 1i2,3,6.7,8-HxCDD t; 1,2,3.7.8.9-HxCDD 7 7 Total HxCDD 1,2,3,4.6,7.8.HpCDF ND 850 s ; 91.0 J Total 2.3,7,8-TCDD 1,2,3,4,7,8,9-HpCDF' ND Equivalence: 12 ng/Kg Total HpCDF 200 (Using ITE Factors) 1,2,3.4.6,7,8-HpCDD Total HpCDD ,; . •OCDF^v^i ■ 1S0.0 J OCDD / 130.0 Results reported on.a total weight basis LRL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7,a-substituted isomers) 1 = Interference EMPC = Estimatad Maximum Possible Concentration E 3 PCDE Inierfarsnce A = Detection Limit baaed on signa!-to-noise measurement S = Saturated signal J = Concentration detected is below the calibration range ND = Not Detected B = Less than 10 times higher than maihod blank level NA = Not Applicable P = Recovery outside of target range NC = NotCalculatBd / / . ■Y Nn = Value obtained from additional analysis ’ = See Discussion YY Report NO...I02-1057132^7'

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

CITY_21MC100_008987365 NYC-WTC_000204964