NYC-WTC_000229438

NYC 9/11 Public Portal Document

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

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

Client - ATC Client's Sample ID ATC-0327-STY-DX3 Lab Sample ID 103451803 I Filename U20425D_10 ■J Injected By BAL Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 03/27/2002 ICAL Date 04/16/2002 Received 04/02/2002 CCal Filename(s) U20425C_16 & U20425D_16 Extracted 04/19/2002 Method Blank ID BLANK-1581 Analyzed 04/26/2002 14:20 Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7.8-TCDF 0.0082 0.0061 JA 2.3.7,8-TCDF-13C 2.00 68 Total TCDF 0.0480 0.0020 2,3.7.8-TCDD-13C 2.00 74 1.2.3.7.8-PeCDF-13C 2.00 79 2,3,7,8-TCDD ND 0.0042 A 2,3.4.7.8-PeCDF-13C 2.00 78 Total TCDD 0.0450 0.0020 1.2.3.7,8-PeCDD-13C 2.00 85 1.2.3.4.7.8-HXCDF-13C 2.00 85 1,2.3,7,8-PeCDF ND 0.0100 1.2.3.6.7,8-HxCDF-13C 2.00 87 2,3.4,7,8-PeCDF 0.0130 0.0100 J 2.3,4,6,7,8-HxCDF-13C 2.00 80 Total PeCDF 0.0900 0.0100 1,2,3.7,8,9-HxCDF-13C 2.00 90 1.2.3.4.7.8-HxCDD-13C 2.00 85 1,2,3,7,8-PeCDD ND 0.0100 1.2.3.6.7,8-HxCDD-13C " 2.00 85 Total PeCDD 0.2000 0.0100 1,2.3,4,6,7,8-HpCDF-13C ' 2.00 85 1.2,3.4.7.8.9-HpCDF-13C 2.00 94 1.2.3,4,7,8-HxCDF 0.011 0.0100 I 1.2.3.4.6.7,8-HpCDD-13C 2.00 92 1,2,3,6,7,8-HxCDF ND ---- 0.0100 OCDD-13C 4.00 94 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 0.0300 ---- 0.0100 J 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 72 1.2.3.6.7.8-HxCDD 0.0140 0.0100 J 1.2.3.7,8,9-HxCDD ND 0.0100 Total HxCDD 0.2600 0.0100 ) 1,2,3,4,6,7,8-HpCDF 0.0450 0.0100 J Total 2,3,7,8-TCDD 1,2,3,4,7,8,9-HpCDF ND 0.0100 Equivalence: 0.010 ng/m2 Total HpCDF 0.0450 0.0100 J (Using ITE Factors) 1.2.3.4,6.7.8-HpCDD 0.0700 0.0100 Total HpCDD 0.1500 0.0100 OCDF 0.0330 0.0200 J ! OCDD 0.2700 0.0200 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 signaTto-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 I P = Recovery outside of target range NC = Not Calculated Nn = Value obtained from additional analysis * = See Discussion j Report No..... 02-1055819

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

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NYC-WTC_000229438