NYC-WTC_000204954

NYC 9/11 Public Portal Document

1700 Bn Street - Suita 200 Minnaapoiis, MN 5S414 TU

'ace Analytical Method 8290 Analysis Results Tel:612-607-1700 PfiX: 61?- 607-6444

Client-ATC -(/OB Cltenfs Sample ID / 7/ \ ATC-0427-STY-DX24 '

7 Lab Sample ID Filename Injected By » BAL 7 . a Total Amount Extracted 7 ; o.O3g ?/ ; V 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) F20525/C17 & F20525B_16 Extracted 05/21/2002 7 Method Blank ID - : 7 ■; BLANK-1534 Analyzed 05/26/2002 13:12 Native Cone EMPC LRL internal ng’s Percent Isomers ng/Kg ng/Kg ng/Kg Standards Added Recovery

i 2,3,7,8-TCDF 2,3,7,a-TGDF-13C 2.00 Total TCDF 2.3,7,8>TCDD-13C 2.00 7 1,2,3.7,8-PeCDF-13C 2.00 ' 7 2,3.7,8-TCDD ND 2.3.4.7,8-PeCDF-13C Total TCDD 750 Sb 1,2,3.7.8-P©CDD-13C 2.00 . 73.' / 1,2,3.4.7,8-HXCDF-13C 2.00 86 1.2,3.7,8-PeCDF ■ 1,2,3,B,7,8-HXCDF-13C 2.00 2,3,4,7.8-PeCDF 7 330; 2,3,4.6,7,8-HxCDF-13C 2.00 Total PeCDF- -: ^ 7 ND 7 330 1.2,3,7,8,9-HxCDF-13C 2.0C < 1,2,3.4.7.8.HXCDD-13C / Y2.00 7 1,2.3,7,8-PeCDD 330 7 1.2,3,6,7,8-HxCDD-13C 2.00 7 : 88- 7 - Total PeCDD 7 7 ND; 7 ■ 330 .. 1.2,3,4,7,8.9-HpCDF-13C 2.00 ^70 ' 1,2,3,4.7.8-HxCDF ■ ND > 7 330 7- 7 7 1,2,3,4,6.7,8-HpCDD-13C ■ S ■ 1.2,3,6,7,8-HxCDF7 - 7 330 :? 77 OCDD-13C 7 7, 7; 7 2,3,4.6.7.8-HxCDF ? MS ND ■ 7 7 1.2,3,7,8.9-HxGDF7 7 330 1,2,3,4-TCDD-13C ' Total HxCDF S 7 ris ND ■ - 330 , 7 1,2,3.7,8,9-HxCDD-13C ■ ■ ■■

2.00 . 7a 7 NA 7

1,2,3,4,7,8-HxCDD 2.3,7,8-TCDD-37CI4 / /; 0.20 7 7 ^ 1.2.3,6,7,8-HxCDD tiS ND ■ 330-7 ' 1,2.3.7,8,g-HxCDD ND . 330/ 7 Total HxCDD 77 7 600 . 330 7j

1,2,3.4,6.7,B-HpCDF 330 Total 2,3,7.8-TCDD 1,2.3,4.7,8,9-HpCDF Equivalence: 18 ng/Kg Total HpCDF . dS - ND ^ 330 ^ ^^ (Using ITE Factors), 1.2.3,4,6,7,8-HpCDD' ' 500 Y Total HpCDD ; , yB 1400 - 7 ■ SS- 330 BJ 7 OCDF 7 ND '••‘y; OCDD 4300 Results reported on a total weight basis LRL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7,8-sub3tiiut6ci Isomers) I = Interference ' EMPC = Estimaiad Maximum Possible Concantrafion E «. PCDE intarferance A = Detection Limit based on signai-to-noise measurement S = Saturated signal J = Concentration detected is below the calibration range ND = Not Dsteotacf B = Less than 10 times higher than method blank level < NA = Not Applicable P = Recovery outside of target range NC = Not Calculated Nn = Value obtained from additional analysis • = See Discussion ' Report No.... 02-1057132 , F,

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

CITY_21MC1OO_OO8987367 NYC-WTC_000204966