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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_000103617
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NYC 9/11 Public Portal Document

.4

TESTWELL LABORATORIES, INC. Environmental Laboratory rrrs Euv # 11142 47 Hudson Street, O{sfning, New York 10562 NVLAP # 200083.0 AIF1A # 100147

Transmission Electron Microscopy Results Client: Bovis Lend Lease - LMB 200 Park Avenue New York, New York Date Collected: 05/24/02 • Date Rec'd (lab): 05/26/02 Sample Location: Millenium Hilton Hotel @ WTC (Various Floors) Analysis Date: 05/28/02 • 55 Church Street TEM Analyst: D. McCar/ New York, New York Analytical Method: AHERA

Field Technician: T. Chhetry — _ _ • Filter Type: MCE 0.45 micron vg.Grid Opening: 0.0121mm2 Volume Grid Lab Number Grid Area Countable Asb. Concentration Concentration Sample #: Sample Location: Coll. Openings 02TEM # (liters) Analyzed Structures Structures/mm) Structures/cc Analyzed

Inside Work Area 1280.0 6 0.073 0 <13.77 <0.004 49 2457 48th Floor

50 Inside Work Area 48th Floor 2458 1280.0 I 6 0.073 0 <13.77 <0.004

51 Inside Work Area 48th Floor 2459 1280.0 I 6 0.073 0 <13.77 <0.004

52 Inside Work Area 47th Floor 2460 1280.0 I 6 0.073 0 <13.77 <0.004

53 Inside Work Area 47th Floor 2461 1280.0 I 6 0.073 0 <13.77 <0.004

Inside Work Area 2462 1280.0 6 0.073 0 <13.77 <0.004 54 47th Floor Inside Work Area <13.77 <0.004 55 2463 1280.0 6 0.073 0 47th Floor i 56 Inside Work Area 47th Floor 2464 1280.0 I 6 0.073 0 <13.77 <0.004

57 Field Blank 2465 0.0 6 0.073 0 <13.77 <0.004

58 Field Blank 2466 0.0 6 . 0.073 0 <13.77 <0.004 Structures/mm2 Structures/cc Total Average Concentrations N/A N/A • 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. This certificate of analysis/report shall not be reproduced in full, without the written approval of Testwell Laboratories, Inc.

Laboratory Director/Approved Signatory

i

NYC-WTC 000103617

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NYC-WTC_000103617Source: NYC Law Department, mirrored locally

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