NYC 9/11 Public Portal Document
(YIITC
vti tact 4U
New York, New York 10010
W watc- enviro.Corn
212.353 8280
AS
Fax 212.353.8306
OCIAT S 1 N C.
December 19, 2001
ALC l rvironmental
1:S 14 30th Street
New `fork, NY 10001
Atatn: Mr. Joshua Sarett
Re: Report of TEM Analysis
Dear IMr. Sarett:
Follc4wing are the results of transmission electron microscopy
(TEM)
analysis of air samples from our Group No. 6:45.
Ciiei-t: Gateway Plaza wirgt. Corp., 345 South End Ave., NY, NY
Project Name: Building 100
Location: Act. SA
Samples received: 12/19/01
These resultswill confirm and document the data transmitted today
to yo The analyses were performed in strict conformance with the
method ology of the AHERA Final Rule (CFR October 30, 1987) for
clearance of abatement sites.
The results of the sample analyses are as indicated on the attached
dccum~nt.
Resulks reported as Struct/co are a function of air volume
collected :Ln the field and are, as such, not verifiable by this
labor~torv. This report may be reproduced only in its entirety and
not without prior permission of this laboratory. If the post-
abatement inside samples pass, the response action may be
consi¢lered to have been completed. The analyses were supervised by
Dr. Michael A. Gorycki, Director of Electron Microscopy.
We ate pleased to note that our TEM lab has received full
creditat;on from NVLAP, as is currently required for recognized
ar_aly~is 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
materi-als .
Very 1Lruly yours,
Mic'ra~l A. Gorycki, Ph.D.
Director of Electron Microscopy
NYC-WTC 000121272
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