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DEP memo on 114 Liberty Street clearance data validity, Aug

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A letter defending the validity of DEP and contractor data used to clear residential units at 114 Liberty Street for re-occupancy.

NYC-WTC_000151361–000151378

Folder label: “WTC DC TO RC LETTERS CALLEHAN WHITMAN ETC. WARD DOCTOROFF KENNY

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NYC 9/11 Public Portal Document

U.S Environmental Protection Agency, Region II New York City Response and Recovery Operations 290 Broadway New York, NY 10007

APR 18 am Mike Gilsenan New York City Department of Environmental Protection 59-17 Junction Boulevard 11* Floor Corona, New York 11368

Dear Mr. Gilsenan:

Please find a summary of our evaluation of the analytical data from 114 Liberty Street presented below. A renew of the analytical data for asbestos, polycyclic aromatic hydrocarbons (PAHs), dioxin, and lead indicates that the primary clearance levels identified in the work plan have been met in the areas that were cleaned and tested. The secondary clearance level identified in the workplan for fibrous glass ha.*: also been met in the areas that were cleaned and tested. The secondary clearance level for crystalline silica was met in 64% of the areas tested; however the remaining areas were similar to bacltground values observed from a USEPA background study Since all of the primary' clearance values have been m.et, the building can be released back to the owner.

As we discussed, I do suggest that one item needs to be identified in relation to rele-.sing the bviiding to the on-ner. which is the area that contains the pizza shop. Your staff has identified the area of the building that contains the pizza shop as having asbestos-containing material (ACM). The ACM was considered to be in poor condition, and the Nh’CDEP has indicated that an asbestos abatement wib need to be undertaken in this area. Therefore, this space within the building is not considered to ha' c met the primary clearance value for asbestos.

If you have any questions, please do not hesitate to contact me at 212-637-3116.

Sincerely,

Kathleen Callahan Assistant Regional Administrator for the ?:ew York Response and Reeovery Operations

Enclosure

cc: Kiish Radhakrishnan, NYCDEP

NYC-WTC_000151368

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NYC-WTC_000151368Source: NYC Law Department, mirrored locally

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