NYC 9/11 Public Portal Document
concern included: asbestos, lead, dioxin, PAHs (Poly Aromatic Hydrocarbons), fibrous
glass and crystalline silica.
The clean up activities was on March 6, 2003 and completed on March 29, 2003. The
test results were reviewed and the clearance results indicated that all the primary
clearance levels were achieved.
In April of 2003, DEP sent the Board of Directors a letter informing them that the clean
up activities had been completed as per the clean-up and monitoring specifications, as
well as the access agreements for 114 Liberty Street. Attached to the letter were copies
of correspondence from EPA regarding the clearance levels for contaminants of possible
concern and enclosures summarizing the analytical results. Included in the letter was
reaffirmation of Asbestos Control Program staffs observations whereby pre-existing
building materials were identified as having suspect asbestos-containing material (ACM).
Those materials included thermal system insulation, surfacing material and vinyl asbestos
tiles. Copies of DEP’s April 24, 2003 and EPA’s April 18, 2003 letters are attached for
your perusal.
NYC-WTC_000163164
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