NYC 9/11 Public Portal Document
Scope of Work B
Application: A visual inspection was performed and the presence ofaccumulations ofdust or debris (including
large or significant amounts ofdust or debris in residential units or portions thereofsuch as windows, terraces
or balconies) from the collapse of the WTC was identified by EPA or designee.
Residents may be present depending on these unit specific circumstances. In cases where clean-up areas can
be isolated by closing doors or by the erection ofcontainment barriers, the residentmay be present in the unit.
In all other applications of Scope B it is assumed that residents will not be present.
1. A site specific work plan will be prepared for review and approval by EPA prior to the start ofwork.
This work plan will include detailed procedures for the removal ofdust and debris and the cleaning,
at a minimum the procedures specified for a Scope A cleaning shall be applied.
2. An ACP-7 form asbestos project notification form shall be submitted, as required by Title 15,
Chapter 1 ofthe Rules ofthe City ofNew York and New York (RCNY), directly to the NYC DEP
Asbestos Control Program prior to the start of work. NYS DOL notification shall be submitted.
3. At least one asbestos supervisor shall be present at each workplace (work place is defined in Title
15, Chapter 1 RCNY as the work area and the decontamination enclosure system).
4. Personal protective equipment including disposable clothing, gloves, and respirators shall be worn
during this clean-up activity.
5. Warning signs shall be posted at the approach to the work area.
6. A worker decontamination enclosure system shall be installed at the entrance to the work area. A
remote decontamination enclosure system shall be considered when appropriate i.e. inability to
comply with the provision due to space limitation or other agency rules, such as for compliance with
NYCFD egress requirements.
7. HVAC systems shall be Shut down and locked out or isolated locally. The site specific work plan
shall provide additional mformation on the HVAC system and proposed procedures for shutdown
or isolation.
8. Isolation barriers shall be installed with two layers of 6-mil polyethylene sheeting and sealed with
tape.
9. Negative pressure ventilation equipment shall be installed and operated during all clean-up activities.
Equipment shall run continuouslyuntil clearance air monitoring. A minimum ofone air change every
30 minutes shall be provided. When ducting to the outside is not possible, a second negative pressure
ventilation imit compatible with the primary unit may be connected in series.
NYC-WTC_000138591
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