Asbestos wipe sample lab results, Sept 2002

NYC 9/11 Public Portal Document

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

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

Client - ATC ASSOCIATES

Lab Sample ID BLANK-2193 Matrix WIPE Filename F20928A_05 Dilution NA Total Amount Extracted 1.00 m2 Extracted 09/21/2002 ICAL Date 09/26/2002 Analyzed 09/28/2002 16:24 CCal Filename(s) F20927B_16 & F20928A_16 Injected By JAS

Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3.7,8-TCDF ND 0.0023 A 2,3,7,8-TCDF-13C 2.00 71 Total TCDF ND 0.0020 2.3.7,8-TCDD-13C 2.00 69 1,2,3,7,8-PeCDF-13C 2.00 77 2,3,7,8-TCDD ND 0.0028 A 2,3,4,7,8-PeCDF-13C 2.00 74 Total TCDD ND 0.0020 1,2.3,7,8-PeCDD-13C 2.00 77 1,2,3,4,7,8-HxCDF-13C 2.00 99 1,2.3,7.8-PeCDF ND 0.0100 1,2,3,6,7,8-HXCDF-13C 2.00 73 2,3,4.7,8-PeCDF ND 0.0100 2,3,4,6,7,8-HxCDF-13C 2.00 85 Total PeCDF ND 0.0100 1,2.3,7,8,9-HxCDF-13C 2.00 72 1,2,3,4,7,8-HxCDD-13C 2.00 98 1,2,3,7,8-PeCDD ND 0.0100 1,2,3,6,7.8-HXCDD-13C 2.00 74 Total PeCDD ND 0.0100 1,2,3,4,6,7,8-HpCDF-13C 2.00 77 1,2,3,4,7,8,9-HpCDF-13C 2.00 66 1,2,3,4.7,8-HxCDF ND 0.0100 1,2,3,4,6,7,8-HpCDD-13C 2.00 70 1,2.3,6,7,8-HxCDF ND 0.0100 OCDD-13C 4.00 81* 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 68 1,2,3,6,7,8-HxCDD ND 0.0100 1,2,3,7,8.9-HxCDD ND 0.0100 Total HxCDD ND 0.0100 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: 0.000034 ng/m2 Total HpCDF ND 0.0100 (Using ITE Factors)

1,2,3,4,6.7,8-HpCDD ND 0.0100 Total HpCDD ND 0.0100 OCDF ND 0.0200 OCDD 0.034 0.0200 J

Cone = Concentration (Totals Include 2,3,7,8-substituted Isomers). I = Interference EMPC = Estimated Maximum Possible Concentration E = PCDE Interference LRL = Lower Reporting Limit ND = Not Detected J = Concentration detected Is below the calibration range NA = Not Applicable P = Recovery outside of target range NC = Not Calculated A = Detection Limit based on signal-to-noise measurement * = See Discussion

Report No.... 1061865

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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