Final air sample results, 55 Church Street, undated

NYC 9/11 Public Portal Document

L TESTWELL LABORATORIES, INC. Environmental Laboratory NYS ELAP # 11142 NVLAP #200083-0 91L 47 Hudson Street, Ossining, New York 10562 AIHA # 100147 , Transmission Electron Microscopy Results Client: Bovis Lend Lease - LMB • 200 Park Avenue New York, New York Date Collected: 07/30/02 Date Rec'd (lab): 07/31/02 Analysis Date: 08/01/02 Sample Location: Millenium Hilton Hotel @ WTC Various Floors 55 Church Street TEM Analyst: D. McCar/ New York, New York Analytical Method: AHERA

• Field Technician: B. Gitman Filter Type: MCE 0.45 micron arm nnrsninne n n171mm2 Volume Grid IGrid Area Countable Asb. Concentration Concentration Lab Number Sample #: Sample Location: Coll. Openings Structures/mm2 Structures/cc 02TEM # (liters) Analyzed Analyzed Structures

3rd Floor Kitchen 5498 1280.0 6 0.073 0 <13.77 <0.004 320

321 3rd Floor Kitchen 5499 1280.0 6 0.073 0 <13.77 <0.004

322 3rd Floor Kitchen 5500 1280.0 6 0.073 0 <13.77 <0.004 S

323 3rd Floor Kitchen 5501 1280.0 6 0.073 0 <13.77 <0.004

324 3rd Floor Kitchen 5502 1280.0 6 0.073 0 <13.77 <0.004

325 Field Blank 5503 0.0 0 0 0 <13.77 <0.004

326 Field Blank 5504 0.0 0 0 0 <13.77 <0.004 Structures/mm2 Structures/cc Total Average Concentrations <13.77 <0.004 • -- -• •-• This report is the confidential property of our clients. I niS certmcate or anaiysisirepuri span nor we usw Uy u le wei u w li on„ y, •..,w• a„•..., ~o..,......., • air sampling collection. This Voluntary Laboratory Approval Program (NVLAP) or any agency of the United States Government The laboratory has no control over certificate of analysis/report shall not be reproduced in full, without the written approval of Testwell Laboratories, Inc.

Laboratory Director/Approved Signatory

NYC-WTC 000103677