NYC 9/11 Public Portal Document
05/021.02 THU 13:03 FAX 212 657 8333 CITIBANK/CRS Z 013
• Oct-O?-Zcat 10:lCpm From- T-816 P.003/005 F-TT0
Hydrogen sulfide is a colorless gas with a strong odor that can o$e= use present
after or during a fro. The
OSHA Permissible Exposure Limit (PEL) is 10 ppm. in the subject space, levels were found to
be below
the limit of detection of I ppm. These levels Were below the rerrommanded Bruits.
Levels of combustible gasses should remain below 1% and nevver exceed 10% in a space.
Levels of
combustible gasses in the subject space remained below the limit of detection of 1%.
Air samples rake► in the subject space and analyzed for the presence of asbestos were found to
be below
both the OSHA recommended limit of 0.1 ttbws/cc, and the more Conservative New
York City
recommended limit of 0.01 fibers/cc.
Should you bave any additional questions or require additional information, please feel free to
contact
(908) 688-7800.
Sincerely.
HFLLMANN ENVIRONMENTAL GROUP, LLC
&4_
4,ennuificr L. C lline, TM
LEAvironr>~ttat Specialist
jcoTins@hill Isrei roup_corn
www.hillmanu reinsert
10/03/01 WED 1006 [TX/RX NO 66101
NYC-WTC 000094836
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