Preliminary environmental assessment report, 30 Warren Street, January 2006

NYC 9/11 Public Portal Document

Environmental Characterization Report Fiterman Hall, 30 West Broadway, New York, NY Airtek Project #05-0867 — January 10, 2006

building materials (ACBMs) was conducted as a part of the prior renovations to the facility, some ACBMs remain that will be abated during the environmental Remediation Phase of the project. Non- friable ACBM spandrel flashing within the facade will be abated during the Deconstruction Phase of the Project.

Lead-Based Paint: A survey for lead-based paint (LBP) conducted throughout the facility has determined that the Building is essentially lead-paint free. Only very limited lead-painted materials remain in the facility. This includes testing of structural steel where it is accessible for testing.

Contaminants of Potential Concern: Visual inspection and limited testing for the residual impact of WTC Contaminants of Potential Concern (CoPCs) was conducted within the Building. This testing was intended to be illustrative of conditions, and useful in verification of some aspects of the HASP for the site. The Building is assumed to be contaminated based on the nature of the WTC impact, and the results of prior investigations.

Waste Characterization: Preliminary testing of WTC dust within the building will be conducted to identify areas of the building where concentrations of RCRA — regulated contaminants within WTC dust may exist. These preliminary results will be used to guide decisions on testing and management of building contents and components impacted by the dust. Waste characterization for purposes of informing decisions on waste handling, packaging, transport and disposal is to be addressed in a companion document, Regulatory Submittal Part 7V - Waste Sampling and Management Plan (WSMP), to be submitted with the regulatory submittals for the project. Waste characterization is an aspect of the project to be very closely monitored by the regulatory community, and is work that will be subject to a Quality Assurance Project Plan (QAPP). As such, it is recommended that the testing supporting this aspect of the project be conducted after review and approval of the WSMP and its associated QAPP by the Regulators.

Microbiological Contamination: Visual inspections for mold impact were conducted, and are ongoing as conditions change within the building over time. In general, mold impact is limited to the upper floors, and is most prevalent on the south side of the building where the facade was destroyed.

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