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Document ID NYC-WTC_000127729, Phase 1 Decontamination Plan

Machine-extracted title · confidence 80%

Administrative record identifier for the Phase 1 Decontamination Plan binder within DEP Box 52.

NYC-WTC_000127730–000127736

Folder label: “BINDER - PHASE 1 DECONTAMINATION PLAN

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NYC 9/11 Public Portal Document

Mr Rajappan Radhakrishnan — NYC DEP 133-135 Greenwich Street and 21-23 Thames Street Airtek Project 05-0701— June 9, 2005

• Utilities - General:

Utility service is currently cut off to the building. All electricity and water required for the work will be drawn from sources outside the building.

Monitoring:

Community Monitoring: Perimeter monitoring for asbestos will be conducted at five points around the subject facility. Background sampling prior to any abatement activity will be conducted, and monitoring will continue until fmal clearance testing is acceptable. All perimeter asbestos testing will be by Transmission Electron Microscopy (TEM AHERA Rules). Metals perimeter testing will by NIOSH 7300.

Project Monitoring: Throughout the decontamination activities, project air monitoring will be conducted in addition to the Perimeter Monitoring described above. Project Monitoring will be conducted in strict accordance with RCNY Title 15 Chapter 1, Section 1-41 to 1-45, with the exception that all sample analyses will be by TEM.

Clearance Testing: Aggressive area clearance testing for asbestos will be conducted for all work areas by TEM. Aggressive clearance testing for metals • will be conducted by NIOSH 7300.

Clearance Criteria:

Clearance testing for asbestos will be acceptable when all samples for a given work area meet the 70 structures per square millimeter TEM standard. Clearance testing for metals will be acceptable when all samples meet the following criteria:

Antimony 250 ug/m3 Barium 250 ug/m3 Beryllium 1.0 ug/m3 Cadmium 5.0 ug/m3 Chromium (III) 250 ug/m3 Copper 500 ug/m3 Lead 25 ug/m3 Manganese 100 ug/m3 Mercury 12.5 ug/m3 Nickel 50 ug/m3 Zinc 1,000 ug/m3

Exterior:

. The exterior of the building was decontaminated as a part of the NYC DEP Building Exterior Cleaning Program following 9/11/01. Airtek's visual inspection

NYC-WTC 000127732

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NYC-WTC_000127732Source: NYC Law Department, mirrored locally

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NYC-WTC_000127779

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Asbestos Project Notification Form · Box DEP Box 52

NYC-WTC_000127792

NYC DEP Asbestos Project Notification form for abatement activities at a facility in the Phase 1 Decontamination Plan binder.

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machine-extracted · confidence unavailable · Check page ↗

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