NYC-WTC_000219094

NYC 9/11 Public Portal Document

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

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

Client - ATC

Client's Sample ID ATC-1220-89M-DX7 Lab Sample ID 103233953 Filename F11228B_09

I Injected By Total Amount Extracted % Moisture BAL 1 m2 NA Matrix Dilution WIPE NA Dry Weight Extracted NA Collected 12/20/2001 I CAL Date 11/19/2001 Received 12/21/2001 CCal Filename(s) F11228B_01 & F11228B_16 Extracted 12/23/2001 Method Blank ID BLANK-1389 Analyzed 12/29/2001 04:00 '■I Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery

2,3,7,8-TCDF ND 0.0020 2,3,7,8-TCDF-13C 2.00 56 Total TCDF 0.0098 0.0020 J 2,3,7,8-TCDD-13C 2.00 69 1,2,3,7,8-PeCDF-13C 2.00 61 2,3,7.8-TCDD ND 0.0020 2,3,4,7,8-PeCDF-13C 2.00 60

a Total TCDD

1.2,3,7,8-PeCDF 2,3,4,7,8-PeCDF 0.0310

ND ND 0.0020

0.0100 0.0100 1,2,3,7,8-PeCDD-13C 1,2,3.4,7,8-HxCDF-13C 1,2,3,6,7,8-HxCDF-13C 2,3,4,6.7.8-HxCDF-13C 2.00 2.00 2.00 2.00 74 67 65 67 Total PeCDF ND 0.0100 1,2,3.7,8,9-HxCDF-13C 2.00 66 •1 1,2,3,7,8-PeCDD ND 0.0100 1,2,3.4,7,8-HxCDD-13C 1,2,3,6,7,8-HxCDD-13C 2.00 2.00 96 70 Total PeCDD 0.0160 0.0100 J 1,2,3,4,6.7,8-HpCDF-13C 2.00 69 1,2,3,4,7,8,9-HpCDF-13C 2.00 69 1,2,3,4,7,8-HxCDF ND 0.0100 1,2,3,4,6,7,8-HpCDD-13C 2.00 84 1,2,3.6,7,8-HxCDF ND 0.0100 OCDD-13C 4.00 64 2,3,4,6,7,8-HxCDF ND 0.0100 1,2,3.7,8,9-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-37CI4 0.20 70

a 1,2,3,6,7,8-HxCDD 1,2,3,7,8,9-HxCDD Total Hx(SDD ND ND 0.0260 0.0100 0.0100 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: 0.00038 ng/m2 Total HpCDF ND 0.0100 (Using ITE Factors)

1,2,3,4,6,7,8-HpCDD 0.0220 0.0100 J fl Total HpCDD

OCDF 0.0410 ND 0.0100 J

0.0200 OCDD 0.1600 0.0200 0 Cone = Concentration (Totals include 2,3,7,8-substituted isomers) LRL = Lower Reporting Limit 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 Report No.... 01-1052540

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

CITY_21MC100_002879241

NYC-WTC_000219103