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

substituted and project-specific adjustments to protocols may be made. Generally, sampling will be conducted once every 24-hour work period, except asbestos (TEM analyses), which will be taken for the duration of every work shift and once a day during non-work days during the Remediation phase. Real-time particulate monitoring will be on a continuous basis. Instantaneous mercury readings will be obtained to evaluate the air quality around the work site at multiple locations each work day.

2.0 Visible emissions

2.1 Remediation Phase

At the commencement of each work shift, the SH will conduct a thorough inspection of all engineering control systems including containment barriers, and negative air control systems, and exterior. If any visible emission is noted on the exterior of the work area, all work will be stopped and not restarted until an evaluation of engineering controls has identified and corrected the cause of the emission. The evaluation may include, but is not limited to, work activities and smoke testing of the isolation barriers. Any damaged or malfunctioning engineering control will be repaired immediately. The work will not be restarted until engineering controls are repaired or determined to be functioning properly.

2.2 Deconstruction Phase

During each work shift, the SH will observe deconstruction operations to monitor visible dust in the air and suppression measures being applied by the deconstruction contractor. The SH may, depending on the severity and duration of dust condition, order a stoppage of the work or require modified work practices to reduce visible dust.

2.3 Notification

The EPA Region 2 office and NYSDOL will be notified promptly of any visible emission observed by the EC to cross the property line of the Buildings. The EC will promptly advise the EPA Region 2 office and the NYSDOL of the corrective actions taken. A report of inspection results and corrective actions taken will be provided to the EPA Region 2 office and NYCDOL within 2 business days of any incident showing any visible a nissions.

3.0 Remediation Phase Air Monitoring

3.1 Visible Emissions

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

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