Permit application Part I, remediation Jan 2006

NYC 9/11 Public Portal Document

Regulatory Submittal Part I — Work Plan Fiterman Hall— 30 West Broadway, New York, New York Airtek Project 05-0867 — January 10, 2006

Asbestos-containing spandrel beam flashing exists that can only be abated as a part of the masonry facade deconstruction during the Deconstruction Phase of the Project. This is a non-friable material that will be removed in strict accordance with a site-specific NYS DOL Variance. Work area monitoring for asbestos will be conducted during the removal of this material, and community air monitoring will be ongoing.

6.5 Operation V - Remediation Work Area Cleanings

After completion of abatement and removal of all interior In-Place ACM, abatement work area cleanings per ICR-56 will be conducted. Following 2nd and 3rd cleanings and the settling periods, final air testing will be conducted as detailed in Section 6.6 below. Failure of clearance testing will result in re- cleaning of the work area tested, and re-testing. Upon successful clearance air testing, the work area will be encapsulated.

6.6 Operation VI — Work Area Clearance

The site will be considered ready for the conventional Deconstruction Phase when the building, is visually clean of all dust, when interior air clearance testing indicates that concentrations of the analytes listed below have been reduced to levels specified below, and when all remaining structural members have been encapsulated with a colored encapsulant,. All visual clearance and air testing will be conducted by the Owner's Environmental Consultant. Where necessary a "White Glove Test" will be performed to determine visual clearance.

The building, or portions thereof, can be removed from containment and the Remediation Phase will be complete when area air measurements, performed using aggressive air sampling procedures which re-suspend residual settled dusts, are at or below each of the following airborne concentrations in every sample, respectively, for the metals noted below and for asbestos. Air testing for asbestos shall be in accordance with applicable regulations and applicable permits and variances for this project. If any one sample is above any of these limits, then the Remediation Phase will be considered incomplete, and the effected areas shall be re-cleaned and re-tested until the airborne concentrations are at or below the levels noted for metals and asbestos.

Clearance testing will be conducted by floor, or by isolated area, and will be acceptable when all samples for a given floor 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

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