DEP Comments on WTC Dust Cleaning Scope of Work Draft,

NYC 9/11 Public Portal Document

A third party Monitoring Contractor will perform air monitoring. Personal air monitoring will be performed on a minimum of one worker per shift per apartment during the first 4-6 weeks of cleaning operations. Thereafter, personal air samples will be taken randomly at a rate of one sample per quadrant per day. These results of this 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. Oualiflcations /-'Ss All work shall be performed by a NYS DOL licensed contractor with.k^YS DOL'aiid NYC MP certified workers. Proof of qualifications must be presented upon i;gquest.

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 con tract award. Gontractors shall have on staff and assigned to this contract a sufficient number of properly trained and^certified workers to clean 20 units simultaneously and complete the clean qp|activities withineach unit within 2 days. Activities shall be coordinated with the project monitor to ensure that.tlie visual inspection is performed within two hours of the completion of clean-up activities. Cleaning activities shall be considered completed upon successful visual inspectionsibystiie Project Monitor. Copies of all invoices for work conducted under this contract shall be provided to USEPA and DEP. A > The contractor shall prepare a Health and Safety^lan (HASP) in with 29CFR1910.1020 and 29 CFR 1926.58. All personnel involved in residential cleaning activities shall follow the contractor HASP prepared by their employer. EPA shall be provided with a copy of the employer HASP prior to the start of work. All cleanup/operations will be conducted in accordance with either Scope A or Scope Bas described below. ' ..

HEPA means a filter system capableof trapping and retaining 99.97% of all mono-dispersed particles of 0.3 micrometers in diameter.

ScopeWork A ' Application: These procedures apply to the clean-up of minimal dust accumulations (light coating). If a visual inspection indicates the presence of significant accumulations of dust and/or debris from the collapse of the WTg.Scope B procedures shall applied (refer to Scope of Work B). Residents may be present during Scope A cleaning procedures. (J)

5. itSleaninf of Common Spaces Common spaces will be cleaned if requested by the building owner and determined necessary by EPA or designee.

If requested and determined necessary by EPA, the cleanup contractor will initiate the cleanup 7^ by vacuuming all common spaces. This includes hallways, utility rooms, laundry rooms.

NYC-WTC_000140518