NYC 9/11 Public Portal Document
02/20/2002 0924 FAX tl 057
jic ENVIRONMENTAL CONSULTANTS, INC
Dedetr>ber 11, 2001
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Revised from September 27, 2001
Ms, Beth Triolo
Mazal Group LLC (100 John Street)
One West Street
New York, NY 10004
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Dear Ms. Triolo:
JLC Environmental Consultants, Inc_ (JLC) conducted ambient air sampling for asbestos
at various locations at the above site on September 19, 2001. The asbestos air samples
were analyzed using the Phase Contrast Microscopy (PCM) Methodology_
The analytical results of the air samples indicated that sample numbers 021, 031, 036,
037, 038, 039 were above the acceptance criteria of at or below 0.01 fibers per cubic
centimeters.
The air samples (nos. 021, 031, 036, 037, 038, 039) that failed to meet the acceptance
criteria of at or 'below 0.01 fibers per cubic centimeters using the Phase Contrast
Microscopy Method were then submitted for analysis using the Transmission Electron
Microscopy (TEM) Methodology NIOSH 7402 Method. This method is the most stringent
for performing analysis to determine asbestos content.
TheEM,nayticaresufts of the air samples indicated that sample numbers 021, 031,
The/TEM/ anal
a criteria of at or below 0.01 fibers per cubic
036, 037, 038, 039 were below the acceptance
centimeters and that no asbestos fibers greater than the limit listed previously was
identified in these samples.
Based on these results the sampled locations are considered safe for occupancy.
The air sampling and analysis were done utilizing applicable Federal, New York State
and New York City Regulations pertaining to asbestos to include Federal OSHA (29
CFR 1926.58), EPA (NESHAPS 40 CFR Part 61), and TSCA Title 11 AHERAIASHARA
(40 CFR Part 763) Asbestos Regulations; the New York State Department of Labor
Industrial Code Rule 56 and the New York City Department of Environmental Protection
Title 15 Asbestos Regulations.
~ 1
200 Park Ave South, Suite 1001 New York, New York 10003 • Tel: (212) 420-8119 • Fox; (212) 420-6092
NYC-WTC 000123854
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