Environmental survey memo for Municipal Building dust samples

NYC 9/11 Public Portal Document

DEPARTMENT OF CITYWIDE ADMINISTRATIVE SERVICES DIVISION OF FACILITIES MANAGEMENT AND CONSTRUCTION

MUNICIPAL BUILDING, I6th Floor NEW YORK, N.Y. 10007 'W (212) 669-2670 Fax: (212) 669-2780 E-Mail: [email protected]

WILLIAM J. DIAMOND SCOTF C. CANTONE JOSEPH WAGNER, P.E,. Commissioner First Deputy Commissioner Deputy Commissioner/ChiefEngineer

New York City Civil Court - 111 Centre Street, New York, NY

After the catastrophic event at the World Trade Center, the Division of Facilities Management and Constraction, Environmental Services, conducted extensive environmental surveys, collected wipe samples and monitored the air.

The dust samples were collected from various floors and were analyzed under the Polarized Light Microscopy (PLM) method. Ten percent (10%) of these samples were also analyzed under the Transmission Electron Microscopy (TEM) method. Both methods are described in the Federal guideline number 40 CFR Part 763, subpart F, appendix A, of the National Emissions Standard for Hazardous Air Pollutants (NESHAP) and in 40 C PR part 763, subpart E appendix A.

The building’s air was monitored and analyzed uncer Phase Contrast Microscopy (PCM) method; in accordance with Federal regulations of the National Institute for Occupational Safety and Health (NIOSH) Method 7400.

All dust and air samples collected were analyzed at KAM Consultant Laboratory. No asbestos presence was detected in either the dust or the air samples.

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