NYC-WTC_000227084

NYC 9/11 Public Portal Document Pace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414

/~^ceAnalyti^ Tel: 612-607-1700

7 Method 8290 Analysis Results Client - ATC Client's Sample ID ATC-0330-M833-DX3 Lab Sample ID 103435525 Filename U20425C_11 Injected By BAL Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 03/30/2002 ICAL Date 04/16/2002 Received 04/02/2002 CCal Filename(s) U20425C_01 & U20425C_16 Extracted 04/18/2002 Method Blank ID BLANK-1579 Analyzed 04/26/2002 02:12 .J Native Isomers Cone ng/m2 EMPC ng/m2 LRL ng/m2 interna! Standards ng’s Added Percent Recovery 2.3,7,8-TCDF ND 0.00200 2,3,7,8-TCDF-13C 2.00 68 Total TCDF ND 0.00200 2,3,7,8-TCDD-13C 2.00 75 1,2,3,7,8-PeCDF-13C 2.00 78 2,3,7,8-TCDD ND 0.00200 2,3,4,7,8-PeCDF-13C 2.00 78 Total TCDD 0.014 0.00200 B 1,2,3,7,8-PeCDD-13C 2.00 86 1,2,3,4,7,8-HxCDF-13C 2.00 86 1,2,3,7,8-PeCDF ND 0.01000 1,2,3,6,7,8-HxCDF-13C 2.00 82 2,3,4,7.8-PeCDF ND 0.01000 2,3,4,6,7,8-HxCDF-13C 2.00 83 Total PeCDF ND 0.01000 1,2,3,7,8,9-HxCDF-13C 2.00 88 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 81 Total PeCDD ND 0.01000 1,2,3,4,6,7,8-HpCDF-13C 2.00 87 1,2,3,4,7,8.9-HpCDF-13C 2.00 93 1,2,3,4,7,8-HxCDF ND 0.01000 1,2,3,4,6,7,8-HpCDD-13C 2.00 94 1,2,3,6,7,8-HxCDF ND 0.01000 OCDD-13C 4.00 98 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 85 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: 0.00 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 0.022 0.02000 I 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 tbe 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..... 02-1055822

I 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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