NYC 9/11 Public Portal Document
104 East 25th Street
New York. New York 10010
www.atc-enviro corn
212 353.8280
Fax 212.353 8306
September 27, 2001
ALC Environmental
115 W. 30th Street
New York, NY 10001
Attn: Mr. Joshua Sarett
Re: Report of TEM Analysis
Dear Mr. Sarett:
(TEM)
results of transmission electron microscopy
Following are the 5571:
samples from our Group No.
analysis of nineteen PCM air
Client: Mid -State Avenue, Plaza 600
Project Name: 395 Southend
Location: Various Floors 09/26/01
Samples received in TEM Lab:
transmitted to you
and document the data
These results will confirm performed in strict conformance w1thh4the
today. The analyses were method 7402, issue 2, August 15,
methodology of the NIOSH
were examined at
from each of the samples
Forty grid openings (approximately 1,000X and 10,000X)
relatively low magnifications between
than sum in length and widths
for structures greater -to-width ratio greater 251m
and 3um, and having a length be observed by PCM
structures would be large enough to
These were detected in
analysis. Asbestos and non -asbestos
proportions:
s
the samples in the following prop
chrysotile gypsum cellulose F/CC as
sample Asbestos
number
1 0.0% 83.8% 16.2%
43.7% 0.0
.0
2 0.0% 56.3%
0.0
(.-)~, 0 . 0% 71. 4 % 28.6 0
35.7% 0.0
3 0.0% 64.3%
5 0.0
6 0.0% 100.0% 0.0% 0.002 v'
25.9% 55.6%
18.5% 31.1% 0.0
68.9%
g 0.0% 0.003
9.4% 90.6% 0.0%
76.7% p.0
13 0.0% 23 . 3 %
0.0% 70.0% 30.00 0.0
14 100.0% 0.0% 0.0
15 0.0% 0.0
0.0% 100.0% 0.0:
16 0.0% 0.0
17 0.0% 100.0%
0.0
18 0.0% 100.0% 0.0%
NYC-WTC 000121528
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