NYC-WTC_000197589

NYC 9/11 Public Portal Document

Pace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414

^ace Analytical__________ Results Method 8290 Analysis Tel: 612-607-1700 Fax- 612- 607-6444

Client - ATC Client's Sample ID ATC-1203-STY-DX1 Lab Sample ID 103183083 Filename U11209A_12 injected By BAL Total Amount Extracted 1 Sample Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 12/03/2001 ICAL Date 11/10/2001 Received 12/04/2001 CCal Filename(s) U11209A_01 & U11209A_17 Extracted 12/05/2001 Method Blank ID BLANK-1358 Analyzed 12/10/2001 04:30 Native Cone EMPC LRL Internal ng's Percent J Isomers ng/S ng/S ng/S Standards Added Recovery 2,3,7,8-TCDF ND 0.00200 2,3,7,8-TCDF-13C 2.00 82 I Total TCDF 0.0022 0.00200 J 2,3,7,8-TCDD-13C 1,2,3,7,8-PeCDF-13C 2.00 2.00 76 79 2,3,7.8-TCDD ND 0.00200 2,3,4,7,8-PeCDF-13C 2.00 79 Total TCDD 0.0044 0.00200 BJ 1,2,3,7,8-PeCDD-13C 2.00 78 1,2,3,4,7,8-HxCDF-13C 2.00 112 3 1,2,3,7,8-PeCDF ND 0.01000 1,2,3,6,7,8-HxGDF-13C 2.00 94 2,3,4,7,8-PeCDF ND 0.01000 2,3,4,6,7,8-HxCDF-13C 2.00 104 Total PeCDF ND 0.01000 1,2,3,7,8,9-HxCDF-13C 2.00 97 1,2,3,4,7,8-HxCDD-13C 2.00 94 1.2,3,7,8-PeCDD ND 0.01000 1,2,3,6,7,8-HxCDD-13C 2.00 108 Total PeCDD 0.0150 0.01000 J 1,2,3,4,6,7,8-HpCDF-13C 2.00 86 1,2,3,4,7,8,9-HpCDF-13C 2.00 75 s 1,2,3,4,7,8-HxCDF 1,2,3,6,7,8-HxCDF 2,3,4,6,7,8-HxCDF ND ND ND 0.01000 0.01000 0.01000 1,2,3,4,6,7,8-HpCDD-13C OCDD-13C 2.00 4.00 74 48

1,2,3,7,8,9-HxCDF ND 0.01000 1,2,3,4-TCDD-13C 2.00 NA 1 Total HxCDF ND 0.01000 1,2,3,7,8,9-HxCDD-13C 2.00 NA

1,2,3,4,7,8-HxCDD ND 0.01000 2,3,7.8-TCDD-37CI4 0.20 74 1,2,3,6,7,8-HxCDD ND 0.01000 1.2.3,7.8.9-HxCDD ND 0.01000 Total HxCDD 0.0380 0.01000 J

1,2,3,4,6,7,8-HpCDF ND 0.01000 Total 2,3,7,8-TCDD 1,2,3,4,7,8,9-HpCDF ND 0.01000 Equivalence: 0.00016 ng/S ■ Total HpCDF ND 0.01000 (Using ITE Factors)

1,2,3,4,6,7,8-HpCDD 0.0100 0.01000 J Total HpCDD 0.0100 0.01000 J

OCDF ND 0.02000 OCDD 0.0560 0.02000 J LRL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7,8-substituted isomers) I = Interference EMPC = Estimated Maximum Possible Concentration E = PCDE Interference A = Detection Limit based on signal-to-noise measurement S = Saturated signal J = Concentration detected is below the calibration range ND = Not Detected 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 a Report No.... 01-1051682

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

CITY_21MC100_003046214

NYC-WTC_000197591