NYC 9/11 Public Portal Document
Summary: The objective of this project is to abate the asbestos dust
from 102/104 Greenwich Street, New York, New York as a result of thecontamination
attack of the
World Trade Center. Asbestos dust contamination has been identified
on all floors by the
New York Department of Environmental Protection. A critical barrier
negative pressure
containment will be installed on all levels prior to cleaning. Once
proper negative
pressure is achieved all non-porous surfaces (ie. walls, floors, ceilings,
wood chairs,
tables, metal items, etc.) will be cleaned and stored. All others (ie.
curtains, table clothes,
cloth chairs, ceiling tiles, etc.) will be discarded as contaminated.
All work will be in accordance with the NYCDEP directive for
buildings associated with
the World Trade Center attack, NYSDOL - DOSH Part 56,
and NYCDEP Title 15,
Chapter 1 regulations.
A. INITIAL WORK SITE PREPARATION
NYSDOL-DOSH Part 56
NYCDEP, Title 15, Chapter 1, Subchapter F, Part 2
Post danger signs.
Install personnel decontamination at 1st floor center stairwell.
Construct isolation barrier to hardware store.
Pre-clean all critical barrier areas.
Install critical barriers with 2 layers of 6 mil fire resistant
polyethylene.
Install air filtration devices to achieve .02 negative pressure by
digital
water manometer.
B. REMOVAL METHODS
NYSDOL — DOSH Part 56
NYCDEP, Title 15, Chapter 1, Subchapter F, Part 4
Remove filters from all heating, ventilating, and air conditioning
systems.
Clean all contaminated spaces by wet wiping and HEPA
vacuum.
Properly place all contaminated debris in appropriately labeled
impermeable 6 mil
bags .
C. DECONTAMINATION PROCEDURES
NYSDOL — DOSH Part 56
NYCDEP, Title 15, Chapter 1, Subchapter F, Part 2
Three stage decontamination unit.
Two stage waste decontamination unit.
D. FINAL CLEAN UP
NYSDOL — DOSH Part 56
NYCDEP, Title 15, Chapter 1, Subchapter F, Part 5
NYC-WTC 000128560
OCR can misread numbers and units. Confirm readings against the page image before using them.