NYC 9/11 Public Portal Document
104 East 25th Street
New York, New York 10010
vwvw,atc-anviro.Corn
212.353.8280
Fax 212.353.8306
October il, 2001
ALC Environmental
115 W. 30th Street
New York, NY 10001
Attn: Mr. Joshua Sarett
Re: Report of TEM Analysis
Dear Mr. Sarett:
Following are the results of transmission electron microscopy (TEM)
analysis of air samples from our Group No. 5661.
Client: Gateway Plaza Mngt. Corp.
Project Name: Building 400 at Gateway Plaza - 375 South End Ave.
Location: Various Sites
Samples received: 10/10/01
These results will confirm and document the data transmitted today
to you. The analyses were performed in strict conformance with the
methodology of the AHERA Final Rule (CFR October 30, 1987) for
clearance of abatement sites. As indicated on the attached Summary
Results sheet, less than 70 asbestos structures per mm, was detected
in all of the twenty-five samples submitted from the site.
Results 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 ir. its entirety and
not without prior permission of this laboratory. If the post-
abatement inside samples pass, the response action may be
considered to have been completed. The analyses were supervised by
Dr. Michael A. Gorycki, Director of Electron Microscopy.
We are pleased to note that our TEM lab has received £I11.
accreditation from NVLAP, as is currently required for recognized
analysis of TEM! air samples for AHERA projects, and also approval
under 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
materials.
Very truly yours,
Michael A. Gorycki, Ph.D.
Director of Electron Microscopy
NYC-WTC 000095278
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