NYC-WTC_000223535

NYC 9/11 Public Portal Document

FEB-19-02 06:23 FROM-PACE ANALYTICAL 612-607-6444 T-536 P.03/04 F-851 '1700 Elm Street - Suite 200 Minneapolis, MN 55414

^ceAnalvtical__________ Tai; 612-607-1700 Fax- 612- 607-6444 Method 8290 Analysis Results Client - ATC Client's Sample ID ATC-0122-234M-DX2 l-ab Sample ID Filename Injected By 103283669 U2O211A_O6 CVS I Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 01/22/2002 ICAL Date 01/25/2002 Received 01/24/2002 CCal Filename(s) U20211A_01 &U20211A_15 Extracted 02/06/2002 Method Blank ID BLANK-1453 Analyzed 02/11/2002 16:27 Native Cone EMPC LRL Interrtal ng'S Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,a-TCDF ND ---- 0.00230 A 2,3.7,e-TCDF-13C 2.00 77 Total TCDF 0.013 — 0.00200 2,3,7,8-TCDD-13C 2.00 66 1,2,3,7,8-PeCDF-13C 2.00 67 2,3.7,8-TCDD ND 0.00320 A 2,3.4,7.8-PeCDF-13C 2.00 65 Total TCDD 0.054 . 0.00200 1,2,3,7,8-PeCDD-13C 2.00 72 1,2,3,4,7,8-HxCDF-13C 2.00 98 1,2,3,7,8-PeCDF ND 0.01000 1,2,3,6,7,8-HXCDF-13C 2.00 78 2,3,4,7,8-PeCDF ND 0.01000 2,3,4,6,7,8-HxCDF-13C 2.00 82 Total PeCDF ND 0.01000 1,2,3,7.8,9-HxCDF-13C 2.00 86 1,2,3,4.7,8-HxCDD-13C 2.00 36 1,2,3,7,8-PeCDD ND 0.01000 1,2,3.6,7,8-HxCDD-13C 2.00 74 Total PeCDD 0.081 0.01000 1,2,3,4,6,7,8-HpCDF-13C 2.00 70 1,2.3,4,7,8,9-HpCDF-13C 2-00 66 1,2,3,4,7,8-HxCDF ND 0.01000 1,2.3,4,6.7.8-HpCDD-13C 2.00 63 1,2,3,6,7,8-HxCDF ND 0.01000 OCDD-13C 4.00 60 2,3,4,6,7,8-MxCDF 0.014 0.01000 J 1,2,3,7,8,9-HxCDF ND 0.01000 1,2,3,4-TCDD-13C 2.00 NA Total HxCDF 0.029 0.01000 J 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-37C14 0.20 74 1,2,3,6,7,8-HxCDD 0.012 0.01000 J 1,2,3,7,8,9-HxCDD ND 0.01000 Total HxCDD 0.380 0.01000 1,2,3.4,6.7,8-HpCDF 0.028 0.01000 J Total 2,3,7,8-TCDD 1,2,3,4,7,8.9-HpGDF ND 0.01000 Equivalence: 0.0033 ng/m2 Total HpCDF 0.028 0.01000 J (Using ITE Factors) 1,2,3,4,6,7,8-HpCDD 0.039 0,01000 J Total HpCDD 0.077 0.01000 J OCDF ND 0.02000 OCDD 0.086 0.02000 BJ LRL = Lower Reporting Limit Cone = Concentration (Totals Include 2,3,7,8-substituted Isomers) I = Interference EM PC E Esomatsd Maximum Possible Concentration E H PCDE Interference A = Detection Limit based on eignal-to-nolse 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.... 02-1053389

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

CITY_21MC100_002891164

NYC-WTC_000223536