Request for dust and air sampling to test for asbestos and lead at 100 Wall Street following the World Trade Center collapse.
NYC-WTC_000094796Folder label: “100 WALL STREET Block: 33 Lot: 1”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
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EMTEOUE September 18, 2001
Mr. Phillip J. Fallon, Jr. Vice President and Director of Environmental Affairs Reckson Associates Realty Corporation 225 Broadhollow Road Melville, New York 11747-0983
Re: 100 Wall Street Indoor Air Quality Sampling and Remedial Measures Following the World Trade Center Disaster
Dear Mr. Fallon;
As a result of the collapse of the World Trade Center on September 11, 2001, EMTEQUE Corporation recommended that dust and air samples be collected and analyzed for the presence of asbestos and lead in the following areas: elevator pits, lobby, the 12th floor mechanical room and a typical tenant occupied floor. In addition, all air intakes and mechanical room air handlers were examined for the presence of dust.
Wipe samples collected from inside the air handlers and from filters were analyzed for the presence of asbestos via Polarized Light Microscopy (PLM) and air samples also for asbestos via Phase Contrast Microscopy (PCM), NIOSH Method 7400. Lead wipe and air samples were analyzed for lead via Atomic Absorption. Wipe samples have been collected in accordance with guidelines established by the United States Department of Housing and Urban Development (HUD). Air samples were analyzed via NIOSH Method 7082 for the presence of lead. Samples were collected on September 14, 2001 and sent to EMSL Laboratories, Inc., a New York City AIHA accredited laboratory.
Analytical Results
Wipe samples indicated that no asbestos was present in the dust or in samples collected from the HVAC filter system. Air samples revealed acceptable airborne fiber concentrations of less than 0.010 fibers per cubic centimeter (f/cc) the "clean air" standard established by the City of New York and the State of New York as acceptable concentrations following asbestos abatement. Lead wipe samples collected in the lobby area and in the tenant areas revealed lead levels which were less than the detection level 10 micrograms/square foot (ug/ft2) in most cases. Samples collected from the elevator pits and from the HVAC systems revealed concentrations which ranged from 18 — 400 ug/ft2. Although there are no "lead safe" guidelines for commercial properties, HUD has established acceptable standards on horizon surface (floors) following lead abatement of 40 ug/m3. Air samples for lead were less 50 ug/m3,
ENTERED 505 Eighth Avenue • Suite 900 • New York, NY 10018 Phone: 212-631-9000 • Fax: 212-631-8066 • E-mail: [email protected]
NYC-WTC000094796
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NYC-WTC_000094797
Summary of remediation activities and test results showing no asbestos detected and lead removed from HVAC systems at 100 Wall Street.
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NYC-WTC_000094798
EMSL Manhattan fax cover sheet requesting asbestos analysis of samples from the lobby and floors at 100 Wall Street.
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EMSL Manhattan fax cover sheet requesting asbestos analysis of samples from the lobby and floors at 100 Wall Street.
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EMSL Manhattan fax cover sheet requesting NIOSH 7400 fiber analysis of air samples from the lobby and floors at 100 Wall Street.
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EMSL Analytical fax cover sheet requesting asbestos wipe sample analysis for samples from the lobby and floors at 100 Wall Street.
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