NYC 9/11 Public Portal Document
03/19/02 14:52 NO.542 P001/001
Promethium
Realty Corporation
BY FAX AND MAIL
19 March 2002
R. Radhakrishnan, P.E.
Director, Asbeslvs Control Program
Department of Environmental Protection
59-17 Junction Boulevard
Corona, New York 11368-5107
Re; 48 Warren Street.
Dear Mr. Radhakrishnan,
This is in response to a phone call to our office from Ms. Lisette Wyatt of
the Training and
Ceitificaiion Unit of the NYC Department of Environmental Protection. Ms. Wyatt
on the disposal and disposition of the material from which one of the bulk samples requested a report
from our building
analyzed by ATC Associates, Inc, and tested at 1.7 (PLM %) Chrysoile.
Please see the report sent to
you on 77 February.
I explained to Ms. Wyatt that after collecting samples for testing and
before any other
employees returned to the building, our maintenance staff cleaned the entire building
wearing Tyvek
coveralls manufactured by Dupont and respiratory protection masks
manufactured by North (models
7700-.3() with P100 Particulate Filers also manufactured by North (rrrudel
7580P100), using a HEPA
vacuum cleaner and filters, in accordance with the specifications by
the EPA.
I explained to Ms. Wyatt(and previously to Mr. Sam E. Needum, Industrial
Asbestos Control Program of your department, when he surveyed our Hygienist, of
building on 4 November 2001)
that the only sample which tested minimally positive for asbestos wds
on the roof in one area and was
in a small pile approximately the six of three quarters in a row and
1/8 inches high. Another sample
from the roof tested negative. When our cleaning crew went to the roof
on 10 October to clean and
remove all materials and dirt, the roof was clean and all materials had blown
and washed away in a rain
storm a day or two before.
Ms. Wyatt instructed me to write this letter of explanation, which
will constitute a "clearance
letter" regarding the single small trace amount of material testing
positive in our building. This
therefore is our "clearance letter,"
If there is anything else required please let us know.
~~&-SV IIK—
Gone Herson
Mailing addreu: Box 133 Church Street Station. New York, New York 10007 , 144
Offices: 48 Warren Street, New York, New York 10007 Telephone: (212) 732-2910
NYC-WTC 000096246
OCR can misread numbers and units. Confirm readings against the page image before using them.