NYC-WTC_000194744

NYC 9/11 Public Portal Document

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

we Analytical_________ Method 8290 Analysis Results Tel; 612-607-1700 Fax: 612- 607-6444

Client - ATC I Client's Sample ID ATC-0321-89M-DX1 Lab Sample ID 103418844 Filename F20417B_07 .J Injected By Total Amount Extracted BAL Matrix WIPE 1 m2 % Moisture NA Dilution NA Dry Weight Extracted NA Collected 03/21/2002 I CAL Date 04/12/2002 Received 03/26/2002 CCal Filename(s) F20417B_01 & F20417B_16 Extracted 04/12/2002 Method Blank ID BLANK-1566 Analyzed 04/18/2002 07:12 Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,8-TCDF ND 0.00200 2,3,7,8-TCDF-13C 2.00 70 Total TCDF 0.0021 0.00200 J 2,3,7.8-TCDD-13C 2.00 69 1,2,3,7,8-PeCDF-13C 2.00 75 2,3,7,8-TCDD ND 0.00200 2,3,4,7,8-PeCDF-13C 2.00 73 Total TCDD 0.0110 0.00200 1,2,3,7,8-PeCDD-13C 2.00 77 1,2,3,4,7,8-HxCDF-13C 2.00 92 1,2,3,7,8-PeCDF ND 0.01000 1,2,3,6,7,8-HxCDF-13C 2.00 55 2,3,4,7,8-PeCDF ND 0.01000 2.3,4,6,7,8-HxCDF-13C 2.00 78 Total PeCDF ND 0.01000 1,2,3,7,8,9-HxCDF-13C 2.00 80 1,2,3,4,7,8-HxCDD-13C 2.00 91 1,2,3,7,8-PeCDD ND 0.01000 1,2,3,6,7,8-HxCDD-13C 2.00 75 Total PeCDD ND 0.01000 1,2,3,4,6,7,8-HpCDF-13C 2.00 76 1,2,3,4,7,8,9-HpCDF-13C 2.00 70 1,2,3,4,7,8-HxCDF ND 0.01000 1,2,3,4,6.7,8-HpCDD-13C 2.00 76 1,2,3,6,7,8-HxCDF ND 0.01000 OCDD-13C 4.00 61 2,3,4,6,7,8-HxCDF ND 0.01000 1,2,3,7,8,9-HxCDF ND 0.01000 1,2,3,4-TCDD-13C 2.00 NA 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 76 1,2,3,6,7,8-HxCDD ND 0.01000 1,2,3,7,8,9-HxCDD ND 0.01000 Total HxCDD ND 0.01000 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: 0.000056 ng/m2 Total HpCDF ND 0.01000 (Using ITE Factors) 1,2,3,4,6,7,8-HpCDD ND 0.01000 Total HpCDD ND 0.01000 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 = Mot Calculated Nn = Value obtained from additional analysis ■ = See Discussion Report No.... 02-1055554

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

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NYC-WTC_000194744