NYC-WTC_000209467

NYC 9/11 Public Portal Document

Scope of Work B

Application: A visual inspection was performed and the presence of accumulations of debris (including large or significant amounts of dust) from the collapse of the WTC was identified by EPA or designee.

In some unique circumstances, Scope B may be applied on a limited basis within a unit as determined necessary by the Monitoring Contractor in consultation with EPA._^ Residents be present depending on these unit specific circumstances. In cases where clean up^eas can'be isolated by closing doors or by the erection of containment barriers, the resiident mayfe|prcscnt in the unit. In all other applications of Scope B it is assu^^ that residents will not be'pc^^^^

1. A site specific work plan will be prepared for reviey/ and approval by ER^i^^o tl^jstart of work. This work plan will include detailed procedures for/the removal ^^^^^^debris and the cleaning. J

2. An ACP-7 form asbestos project notification form shall be submittcd, as required by Title 15, Chapter 1 of the RCNY, directly to the NYC DhP Asbestos ControfBrograin prior to the start of work. NYS DOL notification shall be submitted.

3. At least one asbestos supervisor shall be present at each work place (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 (^accerdance^itlrOSHA rules and regulations.~>

5. Warning signs shall bcposted at the approach to thc work area. n 6. A worker decontamination enclosure system shall be installed at the entrance to the work area. A rembted^o^taminatiowraclos^e system shall be considered when appropriate i.e. inability to comply Syithfac. provfsionyMc ito space limitation or other agency rules, such as for complianceivfith® * 's p egressfrequirenients.

7. HVAC systems sh Shulidown and locked out or isolated locally. The site specific work plan shall provide luonal information on the HVAC system and proposed procedures for ' Shutdown or isolation.

8. b/- Isolation barriers,shall be installed with tv/o layers of 6-mil polyethylene sheeting and sealed with tape.

9. "• JNegatiYe pressure ventilation equipment shall be installed and operated during all clean-up activities. Equipment shall run continuously until clearance air monitoring. A minimum of one air change every 30 minutes shall be provided. When ducting to the outside is not possible, a second negative pressure ventilation unit compatible with the primary unit capacity may be coimected in series.

CITY_21MC100_003754622

NYC-WTC_000209471