Remediation plan cover page, 30 Warren Street, January 2006

NYC 9/11 Public Portal Document

Regulatory Submittal Part IV- Waste Sampling & Management Plan Fiterman Hall 30 West Broadway, New York, New York Airtek Project 05-0867 — January 10, 2006

4.8 Structure & Facade

At completion of the Remediation Phase only the steel and masonry structure and the facade will remain, with the exception of specific non- friable ACBM items that will be abated as part of the Deconstruction Phase. The remaining materials will have been HEPA vacuumed, wet wiped, and spray-encapsulated.

Dust sampling for hazardous waste characteristics will have been performed in advance of deconstruction activities. If dust classification sampling indicates that the dust is not a characteristic hazardous waste, and then by extension, any non-hazardous materials potentially impacted by dust (i.e., the Structure & Facade of the building would also not be hazardous. Where analyses indicate that the dust exceeds RCRA criteria for any one RCRA characteristic, structure and facade waste materials potentially impacted by the dust will be assumed to exceed that specific RCRA characteristic unless testing proves otherwise.

Within any floor of the building where dust exhibits RCRA-regulated levels of contamination, representative composite sampling of structure and facade waste will be conducted. Analyses will be for only the specific RCRA characteristic that was noted in the dust characterization study.

5.0 Analytical Methodologies

Analyses conducted to support waste characterization skill be performed according to the following methodologies. Where more than one method is identified, each analytical method is valid per the regulations.

5.1 Toxicity

Method 1311 in "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods," EPA Publication SW-846 as follows:

— Volatile organic compounds (VOCs) - Method 8260B of "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods," EPA Publication SW- 846. VOC toxic constituents include benzene (DO18), carbon tetrachloride (D019), chlorobenzene (D021), chloroform (D022), 1,4-dichlorobenzene (D027), 1,2-dichloroethane (D028), 1,1-dichloroethylene (D029), methyl ethyl ketone (D035), tetrachloroethylene (D039), trichloroethylene (D040), and vinyl chloride (D043).-

— Semivolatile organic compounds (SVOCs) - Method 8270C of "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods," EPA Publication SW-846. SVOC toxic constituents include 2,4-dinitrotoluene (D030), hexachlorobenzene (D032), hexachlorobutadiene (D033), hexachloroethane (D034), o-cresol (D023), m-cresol (D024), p-cresol (D025),

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