NYC-WTC_000231403

NYC 9/11 Public Portal Document

104 East 25ih Sireet New Yor< New York lOOlQ www.aTc-anvifo.wrn 212.3538280 Fax 212.353.8201 ^$SOCtAlES t N C

October S, 2001 Invirqnraental 15 w. 3:Qth Street ■ew York, NY 10001 Attn: Mr, Joshua Sarett tr Re: Report of TEM Analysis [pear Mr. Sarett: |ppllowing are the results of transmission electron microscopy (TEM) lanalysis of air samples from our Group No. 5S42. Iciient: Midstate/Lefrak, Gateway Plaza Ijproject Name: Bldg. 400, 375 South End Avenue, NY, WY ^Location; various sites bamples received: lD/09/oi fcThess results will confirm and document the data transmitted today teo you. The analyses were performed in strict conformance with the ^^methodology of the AHERA Final Rule {CFR October 20, 190 7) for ^clearance of abatement sites. As indicated on the attached Summary ^Results sheet, no asbestos structures were detected in any of the ^thirty samples submitted from the site. giRfeaults reported as Struct/cc are a function of air volume ^collected in the field and are, as such, not verifiable by this ^laboratory. This report may be reproduced only in its entirety and ■hot without prior perrnission ofi this laboratory. If the post­ [.abatement inside samples pass, the response action may be iconsidered to have been con^letad. The analyses were supervised by [Dr, Michael A. Gorycki, Director of Electron Microscopy. [We are pleased to note that our TEM lab has raceived full I' [■accredi tat ion from NVLAP, as is currently required for recognized ; analysis of TEM air samples for AHERA projects, and also approval [Wder the NY State DOH ELAP program. These analyses were performed [by ATC d/b/a ATC Associates Inc. ^Please contact me regarding any questions relating to these Lttiatetials. .

IVery truly yours,

[Michael A. Gorycki, Ph.D. hDirector of Electron Microscopy

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NYC-WTC_000231414