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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

4. After the removal of pipe insulation, the pipe shall be sprayed with amended water and brush-scrubbed to remove all visible ACM. Prior to glovebag detachment a coat of pigmented (non-transparent) encapsulating agent shall be applied to the pipe surface, from which ACM was removed.

5. A minimum of two (2) continuous work area air samples shall be taken outside the tent concurrently with the abatement.

6. Post-abatement clearance air monitoring shall be conducted in compliance with 15 RCNY & 1-43 (except 15 RCNY & 1-43 (b) and (c)) with a minimum of two (2) area air samples in each tent.

7. Post-abatement clearance monitoring shall be conducted in compliance with 15 RCNY & 1-43 (except 15 RCNY & 1-42 (b) and (c)) outside the tent if:

a) The integrity of the tent was compromised and/or visible emissions were detected outside the tent.

b) Area air samples taken outside the tent during abatement exceeded 0.01 f/cc or the background level.

8.4 Removal of Skylight CaulkinglTar and Coping Stone Tar On the Roof:

Removal of asbestos-containing tar materials from the parapet walls described in this Specification and NYCDEP Applicable Variance - Attachment IC, "Requirements For Abatement Of ACM Caulking Materials From The Top Of The Parapet Wall(s) On The Roof".

1. The work will be performed during normal work hours.

2. The entire roof is considered the work area, unless barriers are erected to Identify and restrict the work area.

3. All openings on the roof and other openings/windows within 20 feet of the affected ACM shall be fully closed or sealed with one (1) layer of plastic.

4. Roof surfaces extending 5 feet on both sides and 6 feet in front, shall be covered with at least one (1) layer of 6-mil plastic, along the length of the parapet wall to be abated. The plastic layers on the roof surfaces shall extend 6 inches up the parapet wall.

Prepared by JLC Environmental Consultants, Inc. Project No. 04-3271 Page 46

NYC-WTC 000125624

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NYC-WTC_000125624Source: NYC Law Department, mirrored locally

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