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Document / 118 pages

Final air sample results, 55 Church Street, undated

Machine-extracted title · confidence 90%

One-hundred-eighteen page document from Testwell Laboratories presenting final air sample results for a lease at 200 Park Avenue.

NYC-WTC_000103604–000103721
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Scanned page image, NYC-WTC_000103607
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NYC 9/11 Public Portal Document

91lb TESTWELL LhdORATORIES, INC. Environmental Laboratory 47 Hudson Street, Ossining, New York 10562 NYS ELAP 4 11142 NVLAP s 200083-0 ALMA 0 100147

Transmission Electron Microscopy Results Client: Bovis Lend Lease - LMB 200 Park Avenue New York, New York Date Collected: 05/16/02 Date Rec'd (lab): 05/16/02 Sample Location: Millenium Hilton @ WTC (55th & 54th Floors) Analysis Date: 05/17/02 55 Church Street TEM Analyst: D. McCarl New York, New York Analytical Method: AHERA Field Technician: T. Chhetry Filter Type: MCE 0.45 micron vg.Grid Opening: 0.0121mm2

Sample #: Sample Location: I Lab Number Volume Coll. Grid Openings Grid Area Countable Asb. Concentration Concentration 02TEM # Analyzed Structures Structures/mm2 Structures/cc (liters) Analyzed

1 Inside Work Area 2175 1280.0 6 0.073 0 <13.77 <0.004 55th Floor 2 Inside Work Area 2176 1280.0 6 0.073 0 <13.77 <0.004 55th Floor Inside Work Area 3 2177 1280.0 6 0.073 0 <13.77 <0.004 55th Floor 4 Inside Work Area 2178 1280.0 6 0.073 0 <13.77 <0.004 55th Floor 5 Inside Work Area 2179 1280.0 6 0.073 1 13.77 0.004 55th Floor 6 Inside Work Area 2180 1280.0 6 0.073 1 13.77 0.004 54th Floor 7 Inside Work Area 2181 1280.0 6 0.073 3 41.32 0.012 54th Floor. 8 Inside Work Area 2182 1280.0 6 0.073 0 <13.77 <0.004 54th Floor 9 Inside Work Area 2183 1280.0 6 0.073 0 <13.77 <0.004 54th Floor Inside Work Area 10 2184 1280.0 6 0.073 0 <13.77 <0.004 54th Floor.

11 Field Blank 2185 0.0 6 0.073 0 <13.77 <0.004

12 Field Blank . 2186 0.0 6 0.073 0 <13.77 <0.004

Structures/mm2 Structures/c Total Average Concentrations 16.07 0.005 This report is the confidential property of our clients. This certificate of analysis/report 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. Thi. certificate of analysis/report shall

not be reproduced in full, without the written approval of Testwell Laboratories, Inc.

Laboratory Director/Approved Signatory

a '

NYC-WTC 000103607

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NYC-WTC_000103607Source: NYC Law Department, mirrored locally

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