Asbestos project notification form for NYC DEP

NYC 9/11 Public Portal Document

10. Clean and remove all non-porous materials from the work area and dispose as construction and demolition debris. 11. Remove all other porous materials (including existing non-asbestos containing fireproofing from steel beams, columns metal deck and all other surfaces, as well as pipe insulation and gypsum wallboard) from the work area and dispose of as asbestos contaminated waste. 12. Perform fine cleaning of the entire work area. 13. Environmental Consultant performs visual clearance testing of the floor work areas. As each floor passes visual clearance, contractor will seal of the floor until all work is completed so as to prevent re-contamination. Final air sampling will be performed for all floors upon completion of work. 14. Clean Securtity Elevator #24 in its entirety, including the shaft, via wet-wipe and HEPA vacuum methods. 15. Environmental Consultant performs clearance of the Car #24 shaft.

It is the performance objective of this project that the only materials to remain in the work area after clearance sampling is complete will be sprinkler piping, class “E” wiring and closed conduit.

2.2 FULL CONTAINMENT WORKSITE PROCEDURES The Abatement Contractor shall, at a minimum, perform all functions listed below where applicable:

A. Construct full worker and waste decontamination facilities in accordance with the conditions specified in NYC DEP Title 15, Chapter 1 and in accordance with this scope of work where applicable. Decontamination unit shall be located on the parking level and shall be directly connected to the level “A” work area, and indirectly connected to the other work areas via Stair # 2 and Security Elevator #24.

B. Pre-clean and then erect a two stage airlock from the Security Elcvator:^|^lA----'-h. 7 /. barrier wall on floors 8 through 24. Framing for the isolation barrier ^aU'b^”x 4” wood studs, 16” on center. Plywood sheeting shall then be aftw^ '\ outside of the isolation barrier and 2 layers of 6-mil polyethylene sheetiijg shalvsr affixed to the inside. co4 J;, • I

C. Install a minimum of six (6) HEPA filtration units per floor in order tb hNp filter ■ A/ the air in the work area. HEPA filtration and auxiliary air ventila^n/'^ljall 0 conform to Section 2.8 of this specification and shall exhaust/intake exhau^rn'll' 47 location designated by and/or acceptable to the Client. Due to the existing breech" 4

NYC-WTC_000154687