Final air sample results, 55 Church Street, undated

NYC 9/11 Public Portal Document

• L TESTWELL LABORATORIES, INC. Environmental Laboratory 47 Hudson Street, Ossining, New York 10562 NYS FLAP * 11142 NVLAP # 200083-0 AIHA # 100147

Tranlsrrmission Electron Microscopy Results Client: Bovis Lend Lease - LMB 200 Park Avenue New York, New York Date Collected: 06/25/02 Date Rec'd (lab): 06/26/02 Sample Location: Millenium Hilton Hotel @ WIC Various Floors Analysis Date: 06/27/02 • 55 Church Street TEM Analyst: D. McCarl New York, New York Analytical Method: AHERA Field Technician: B. Gitman Filter Type: MCE 0.45 micron 1vg.Grid Opening: 0.0121mm2

0 Number Volume Grid Sample #: Sample Lo 02TEM # Coil, Openings Grid Area Countable Asb. Concentration Concentration (liters) Analyzed Analyzed Structures Structures/mm2 Structures/cc

Inside Work Area 2th 215 3131 1280.0 6 0.073 0 <13.77 <0.004 Floor Inside Work Area 2th 3132 1280.0 216 6 0.073 5 68.87 0.021 Floor

217 Inside Work Area 2th Floor 3133 1280.0 I 6 0.073 0 <13.77 <0.004 Inside Work Area 2th 3134 ,280.0 6 0.073 0 <13.77 <0.004 218 Floor Inside Work Area 2th 3135 ,280.0 6 0.073 2 27.55 0.008 219 •

Floor.

220 Field Blank 3136 1280.0 6 0.073 0 <13.77 <0.004

221 Field Blank 3137 1280.0 6 0.073 0 <13.77 <0.004

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Structures/mm2I Structures/cc Total Average Concentrations <23.61 <0.007 i his report is the conticentiai property of our clients. This certificate of analysislreport shall not be used by the client to claim product endorsement by the National Voluntary Laboratory Approval Program (NVLAP) or any agency of the United States Government. The laboratory has no control over air sampling collection. This certificate of analysis/report shall not be reproduced in full, without the written approval of Testwell Laboratories, Inc.

Laboratory Director/Approved Signatory

NYC-WTC 000103657