Environmental assessment report, 100 Church Street, April 2002

NYC 9/11 Public Portal Document

• Ethanolamine - Ethanolamine or 2-Aminoethanol, was a component of the carpet mastic release agent sprayed on the carpet during carpet removal. TRC collected air samples for ethanolamine during carpet removal activities.

1.3 Report Layout TRC’s primary findings regarding its evaluation of the NYCLD-occupied floors of 100 Church Street are set out in Section 2.0, and the remaining sections of the report describe the work that was done and the basis for TRC’s findings in detail. Specifically, Section 3.0 reviews the specific tasks and approach undertaken by TRC in conducting this work. Section 4.0 discusses the results of these activities and presents a general overview of the results of the environmental sampling conducted by TRC. Section 5.0 describes the samples collected by International Technical Corp. (IT). Section 6.0 sets out TRC’s evaluation of the significance of these results with respect to fhe suitability of the NYCLD space at 100 Church Street for re-occupancy. Finally, Section 7.0 details recommendations to be implemented subsequent to return to 100 Church Street.

Appendix A presents the data tables showing the results of the samples collected (note that although samples were collected on the 20^’’ floor and the results of those samples are included in the data tables presented in Appendix A, this report does not discuss those results). Appendix B sets forth the human health risk assessment data. Appendix C presents the microbiological investigation report dated March 8, 2002. Appendix D presents the laboratory data and field documentation. Appendix E provides the IT results.

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