NYC-WTC_000231976

NYC 9/11 Public Portal Document

Section 2 - Ambient Air Monitoring Program Revision No.: 0 130 Liberty Street Deconstruction Plan Date: September 7, 2005 Lower Manhattan Development Corporation

• “Level 2”: The next layer of sampling is for New York State, Title 12, NYCRR Part 56 (ICR 56) compliance. ICR 56-required sampling will be performed by the third party consultant who will sample the ambient air inside the building during Phase I work outside of work areas, at the personnel and waste load out decontamination stations and other locations. In addition, samples will be collected outside the building within ten (10) feet of the negative pressure ventilation exhaust. This sampling is further described in the Asbestos and COPC Abatement and Removal Plan.

• “Level 3”: Beyond that, exterior ambient air will continually be monitored within the site boundaries and at specific elevated locations, as described in this Ambient Air Monitoring Program.

While various parties will have responsibility for diligently executing different components of the program, information will flow through the Environmental Consultant to the LMDC as part of a coordinated review and quality control process. Additionally, all monitoring results requested by the various regulators overseeing this project will be provided to them on a timely basis.

This Ambient Air Monitoring Program documents the proposed program of “Level 3” only. The other two “levels” of air monitoring outlined above are documented in the Health and Safety Plan and The Asbestos and COPC Abatement and Removal Plan Sections of the Phase I Deconstruction Plan.

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