NYC 9/11 Public Portal Document
02/20/2002. 05:48 2129240844 CKPROPERTIES PAGE 02
CORPORATION
Occupational Health, Safety &
Environmental Consultants
Ms. Susan Donahue October 24, 2001
C & K Properties
Pier 40, Suite 100
West Street at W. Houston
New York. NY 10014
Via Fax: (212) 604-0057
Re: Air Quality Sampling at 156 Williams Street, New York, NY 10038
Colden project 01223
Dear Ms. Donahue;
project.
This letter and attachments represent our report for the referenced
Williams Street on
Rye Van Deusen of Colden conducted air sampling for asbestos at 156
regarding
October 9 and 11, 2001. The purpose of the sample was to address concerns
contaminants potentially released from the World Trade Center collapse and recovery operations.
Background
government agencies
Colden Corporation has reviewed statements and results published by
extensive
including EPA, OSHA, NYC DEP and NYS DEP. These agencies have conducted
Attached is a summary of such
sampling at and surrounding the World Trade Center site.
information that has been prepared by Colden.
The agency-. information states that there is not a significant threat to the public. However, during
debris and was
the first two weeks following the incident, asbestos was detected in the fallout
zone.
found to exceed a recognized standard in air samples outside of the immediate recovery
the EPA for asbestos has indicated no
Since October 3, 2001, daily air sampling conducted by
overexposures to the public. We do not expect asbestos to be over recognized standards at 156
Williams Street, but have recommended sampling for verification.
Properties - floors
Four stationary air samples were collected on each floor controlled by C & K
lobby and basement storage
2, 3, 4 and 6. Additionally, sampling was conducted in the first floor
area.
Occupational
Samples were collected and analyzed in accordance with National Institute for
involves drawing a known volume of air
Safety and Health. (NIIOSH) Method 7400. This method
ibbert, Morris Bulling • 100 ?orth 17' Street, 9 11, For • Phiiaclalphia, PA 19103
Tel 215 496 9237 • Fax 2154959280 Toll Free 800 58(15584 - M%%Wcoltlen.gom
NYC-WTC 000131054
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