NYC-WTC_000219421

NYC 9/11 Public Portal Document

FEB-10-02 12:52 FROM-PACE ANALYTICAL 612-B07-6444 T-547 P,03/05 F-876 1700 Elm Street - Suite 200 Minneapolis. MN 55414 at t™ weAnalytical__________ Method 8290 Analysis Results Tel; 612-607-1700 Fay Bl 2- 607.6444

Client-ATC Client's Sample ID ATC-0125-a9M-DX2 Lab Sample ID 103292405 Filename U20212BJ2 Injected By BAL Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 01/25/2002 ICALDate 01/25/2002 Received 01/29/2002 CCal Filenamefs) U20212A_11 & U20212B_15 Extracted 02/08/2002 Method Blank ID BLANK-14S7 Analyzed 02/13/2002 08:40 Native Cone EMPC LRL Internal ng'S Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3.7.8-TCDF ND ---- 0.0050 A 2,3,7,a-TCDF-13C 2.00 58 Total TCDF ND — 0.0020 2,3,7,8-TCDD-13C 2.00 65 1,2,3,7,8-PeCDF-13C 2.00 63 2,3.7,8-TCOD ND 0.0062 A 2,3,4.7,8-PeCDF-13C 2.00 60 Total TCDD 0.011 0.0020 1,2,3,7,8-PeCDD-13C 2.00 74 1,2,3,4,7,8-HXCDF-13C 2.00 79 1,2.3.7,8-PeCDF ND 0.0100 1,2,3,6,7,8-HxCDF-13C 2.00 69 2,3,4,7,8’PeCDF ND 0.0100 2,3,4,6,7,8’HxCDF-13C 2.00 69 Total PeCDF ND 0.0100 1,2,3,7,8,9-HxCDF-13C 2.00 71 1,2,3,4,7,8-HxCDD-13C 2.00 84 1,2,3,7,8-PeCDD ND 0.0100 1.2.3,6,7,8-HxCDD-13C 2.00 76 Total PeCDD ND 0.0100 1,2,3,4,6,7,8-HpCDF-13C 2.00 80 l,2,3,4,7,8,9-HpCDF-13C 2.00 69 1.2,3,4,7,8-HxCDF ND 0.0100 1,P.3,4,6,7,8-HpCDD-13C 2.00 73 1,2,3,6,7.8-HxCDF ND 0.0100 OCDD-13C 4.00 57 2.3.4.6.7.8-HxCDF ND 0.0100 1,2.3,7.8,S'HxCDF ND 0.0100 1,2.3,4.TCDD-13C 2,00 NA Total HxCDF ND 0.0100 1.2.3,7.8.9-HxCDD-13C 2.00 NA 1.2,3,4,7,8.HXCDD ND 0.0100 2,3,7,8-TCDD-37Cl4 0.20 73 1,2,3.6.7,8-HxCDD ND 0.0100 1,2,3,7,8,9-HxCDD ND 0.0100 Total HxCDD 0.011 0.0100 J

1,2,3.4,6,7.8-HpCDF ND 0.0100 Total 2.3.7.8-TCDD 1.2.3,4.7,8,9-HpCDF ND 0.0100 Equivalence: 0.00014 ng/m2 Total HpCDF ND 0.0100 (Using ITE Factors)

1,2,3,4,6,7,8-HpCDD 0.014 0.0100 J Total HpCDD 0.028 0,0100 J

□CDF ND 0.0200 OCDD 0.055 0.0200 I LRL s Lower Reporting Limit Cone « Conoomration (Totals include SL3,7,8-substituted isomers) I - Interference EMPC ■ Estimated Maximum Possible Concentration E s PCDE Interference A s Detection Limit based on slgnal-to-noee measurement S = Saturated signal J E Concentration deteeted is below the calibration range ND » Not Detected B K Less than 10 times higher than method blank level NA a Not Applicable P = Recovery outside of target range NC = Not Calcuiated Nn = Value obtained from additional analysis * - See Discussion Report No.... 02-1053530

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in lull, without the written consent ot Pace Analytical Setvteefi, Inc.

CITY_21MC100_002880340

NYC-WTC_000219423