Revised scopes of work for WTC indoor cleaning and monitoring,

NYC 9/11 Public Portal Document

A third party Monitoring Contractor will perform air monitoring. Personal air monitoring will be performed on a minimum ofone worker per shift per apartment during the first 4-6 weeks ofcleaning operations. Thereafter, personal air samples will be taken randomly at a rate of one sample per quadrant per day. These results ofthis sampling shall be sent immediately to EPA, DEP, OSHA and the employer. The employer will make these results available to the employees or their designated representatives for their review in accordance with 29 CFR 1910.1001 and 29 CFR 1926.58.

C. Qualifications All work shall be performed by aNYS DOL licensed contractorwithNYS DOLandNYC DEP certified workers. Proof of qualifications must be presented upon request.

D. Specifications This contract shall be in force for 18 consecutive months from the commencement date. Contractors must be prepared to mobilize within 72 hours of the contract award. Contractors shall have on staff and assigned to this contract a sufficient number ofproperly trained and certified workers to clean 20 units simultaneously and complete the clean up activities within each unit withm 2 days. Activities shall be coordinated with the project monitor to ensure that the visual inspection is performed within two hours of the completion ofclean-up activities. Cleaning activities shall be considered completed upon successful visual inspection by the Project Monitor. Copies ofall invoices for work conducted under this contract shall be provided to USEPA and DEP.

The contractor shall prepare a Health arid Safety Plan (HASP) in with 29CFR1910.1020 and 29 CFR 1926.58. AU personnel involved in residential cleaning activities shaU foUow the contractor HASP prepared by their employer. EPA shaU be provided with a copy ofthe employer HASP prior to the start ofwork. All cleanup operations will be conducted in accordance with either Scope A or Scope B as described below.

HEPA means a filter sj'stem capable oftrapping and retaining 99.97% ofall mono-dispersed particles of 0.3 micrometers in diameter.

Scope of Work A Application: These procedures apply to the clean-up ofminimal dust accumulations (light coating). Ifa visual inspection indicates the presence ofsignificant accumulations ofdust and/or debris fi-om the collapse ofthe WTC Scopes procedures shall applied (refer to Scope ofWork B). Residents may be present during Scope A cleaning procedures.

1. Cleaning of Common Spaces Common spaces will be cleaned ifrequested by the building owner and determined necessaryby EPA or designee.

Ifrequested and determined necessary by EPA, the cleanup contractor will initiate the cleanup by

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