Air monitoring plan Part III, 30 Warren Street, January 2006

NYC 9/11 Public Portal Document

Regulatory Submittal Part II - Environmental Community Air Monitoring Program Fiterman Hall — 30 West Broadway Airtek Project 05-0867 — January 10, 2006

3.2 Community Air Monitoring

Prior to the commencement of any site work, one week of background community air monitoring will be conducted as detailed in Table 1— Community Air Monitoring in Attachment A (Community Monitoring) to this specification. Community Air Monitoring as detailed in Table 1 will continue through the Remediation Phase and until completion of the Deconstruction Phase.

Community Monitoring locations will be determined in cooperation with the USEPA, and will be identified on a drawing to be included in Attachment C (Monitoring Locations).to this specification.

If the environmental air monitoring locations need to be changed during the Remediation phase due to site conditions, NYS DOL and USEPA Region 2 office will be notified promptly. The community air monitoring locations will not be moved until NYS DOL and the USEPA Region 2 office accept the change.

33 Abatement Work Area Monitoring

Air monitoring per the requirements of NYRR ICR 56 will be conducted. Transmission Electron Microscopy (TEM) will be utilized as the analytical method for asbestos. Sample locations will be selected by the SH in accordance with ICR 56-17, and based on the configuration of the abatemqnt containment areas. Containment area monitoring of additional Contaminants of Potential Concern (CoPCs) that are not regulated under ICR-56 will be conducted by the Owner's EC. The COPCs to be monitored are: Asbestos (TEM), Metals (ICP- AES) and crystalline silica (XRD).

This monitoring is detailed in Table 3 - Abatement Work Area Monitoring in Attachment B (Work Area Monitoring) to this specification.

4.0 Deconstruction Phase Air Monitoring 4.1 Visible Emissions

Monitoring for visible emissions will be conducted as described above in Section 2.0 of this specification.

4.2 Community Air Monitoring

Community Air Monitoring will be conducted as detailed in Table 1— Community Air Monitoring in Attachment A (Community Monitoring) to this specification. Community Air Monitoring will continue through the completion of the Deconstruction Phase.

NYC-WTC 000096680