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Asbestos abatement technical specifications, 130 Cedar Street, July 2004

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Technical specifications document prepared for asbestos abatement work at the 130 Cedar Street site.

NYC-WTC_000125579–000125652

Folder label: “130 CEDAR STREET

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NYC 9/11 Public Portal Document

Asbestos Abatement Technical Specifications For 130 Cedar Street, New York, NY Removal of ACM from windows as described In this specification and • NYCDEP Applicable Variance - Attachment EC, "requirements for abatement of ACM caulking materials from Building Facades".

1. All windows and other openings within 20 feet of the affected ACM caulking shall be fully closed or otherwise sealed with two (2) layers of 6- mil plastic. This includes openings on the same floor and also openings on immediately adjacent floors above and below where work shall be performed.

2. The inside frames of the windows and other openings within the affected adjacent interior space shall be fully plasticized with one (1) sheet. of 6-mil plastic. The seal shall be airtight between the opening and the building interior.

3. Any scaffolding erected shall be constructed, maintained and operated in accordance with the applicable federal, state, and local rules and regulations.

4. At the base of the scaffolding (either upon the sidewalk tunnel or at grade level), a work place or restricted area shall be established. This space shall be plasticized with one (1) layer of 6—mil plaster from one (1) foot up the building exterior wall to the edge of the sidewalk tunnel or at least 5 feet away, whichever is greater. It shall be cordoned off with clearly identifiable asbestos hazard tape. This space (except the decon) shall be • replasticized at the end of each shift.

5. The remote workertwaste DES, constructed in accordance with Attachment D, shall be erected at the base of the scaffold. This unit shall be maintained in the work area for the duration of the abatement.

6. The elevated platform shall be at least 1 foot below the surface of joint to be abated. This work area shall be plasticized with a single layer of 6-mil plastic. The plastic shall extend up from the platform to a minimum height of 2 feet on 3 sides. The plastic on the side facing the façade shall be attached directly to the building just below the surface or joint to be abated.

7. At the beginning of each shift, an area sample shall be taken on the scaffolding to obtain at least one (1) sample. Independent third parties should perform air samples.

8. If air samples taken within the building interior are below 0.01 f/cc, of the measured background level, no clearance air samples will be required.

9. Personnel performing the work shall be NYS/NYC certified asbestos handlers. A NYS/NYC certified asbestos supervisor shall be in the work place at all times during the ACM caulking abatement and shall establish and maintain a log as that term is defined at 15 RCNY 1-02.

10. Each abatement team shall be equipped with appropriate tools, rags, a portable supply of amended water and a HEPA vacuum. After the ACM

Prepared by JLC Environmental Consultants, Inc. Project No. 04-3271 Page 48

NYC-WTC 000125626

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NYC-WTC_000125626Source: NYC Law Department, mirrored locally

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