NYC-WTC_000230955

NYC 9/11 Public Portal Document AIV CJiiV liyuvj. tfx nvi> x£ 104 Edst 251h Smet New Vork. New York 10010 www.aK-envira nsm 212 363.8280 FiW 212.353.8306 ASSOCIATES

October 20, 2001

ALC Environmental 11.5 M. 3 0th Street New York, NY lOOOl Attn; Mr. Joshua sarett Re: Report of TEM Analy,=5.i,s Dear Mr. Sarett:

Following are the results ol iraneoigtioe electron microscopy (TEM) analysis of air santplaa f.rota our Group Mo. 5733. Client: Bellmarc Project Name; 71 Murray Street Location: Floors lO, 8, E, 3, Lobby Samples received: 10/2(5/01 These results will confirm and document the data transmitted today to you. The analyses were performed in strict conformance with the methodology of the AHEKA Final Rule (CFR October 30, 1937) for clearance of abs.tement sites. As indicated on the. attached Summary Results sheet, no asbestoii structure.'? were detected in any of the five .samples submitted from the site. Re,suits reported as Struct/cc are .a function of air volume collected it the field and are, as Ouch, not verifiable, by this laboratory. Thi.s report may be reproduced only in its entirety .and not w.ithout prior permiBsion o£ this laboratory. If the post- abatement inside samples pass, the response action may ba coneidered to have been completed. The analyses were supervised by Dr. Michael A. Gorytki, Director of Electron wiCYoscopy We are pleased to note that our TEM .lab ha.s. received JjiXl accreditation from NVLAP, as is currently required for recognizsd analysis of TSM air s.an,pleE for AHERA prcject.s, and also .approval under the M State DOH ElAp progiam. These analyses were performed by ATC d/b/a ATC Associates Inc. Please contact me regarding any guesti.ons relating to these materials.

Very truly yours,

'Mj.chael A . Gorycki , cm Ij. Director of Electron Micro-ocopY

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NYC-WTC_000230962