NYC 9/11 Public Portal Document
11/29/2001 19:00 2124778941 H A BADER PAGE 02
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ENVIRONMENTAL
CONSULTING 2NGINEE&8
68 Bleeoker Street,Suite 4E
New York, NY 10012
Teo 8124764122
Fax212.471$94t
WA, BADER HOWARD A. BOB,P.E.
CONSULTANTS, INC,
November 29, 2001
Ralph Pepe
District Council 37
125 Barclay Street
New York, New York 10007
Re: Asbestos Cleanup of 125 Barclay Street
Dear Mr. Pepe,
asbestos survey at 125
H. A. Bader Consultants, Inc. performed a thorough
Center Disaster. The
Barclay Street after the September 11, 2001, World Trade
survey included air and surface sampling for asbestos.
an accredited
Air samples were taken on each floor and were analyzed by
microscopy (TEM). TEM
asbestos laboratory using transmission electron
asbestos fibers
analysis is very accurate for finding even trace amounts of
Protection Agency (EPA)
present in the air. The United States Environmental
(AS/mm2) as the clearance
uses 70 asbestos structures per square millimeter occupancy after
level for determining whether school areas arc safe for re
125 Barclay
completion of asbestos abatement projects. All air samples at
AS/mm2.
Street had asbestos structure concentrations well below 70
Barclay Street to
A total of 49 dust/debris samples have been taken at 125
laboratory. 5 samples were
date and were analyzed by an accredited asbestos a a
identified as asbestos containing materials (Ac;;M). An ACM is defined
material with greater than one percent asbestos. 17 samples were found to
no asbestos
have trace (i.e., less than 1%) asbestos content. 27 samples had
detected.
Asbestos concentrations less than one percent are not regulated by the US
EPA, New York State Department of Labor (DOL) and New York City
Department of Environmental Protection (DEP). Therefore, only areas where
asbestos dust/debris contained greater than one percent asbestos were filed
with the appropriate regulatory agencies. This is consistent with EPA, DOL and
DEP regulatory procedures.
NYC-WTC 000119397
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