Cleanup Criteria Pre-Cleaning Post-First Cleaning Post-Second Cleaning Post-Third Cleaning
COPC Air Wipe MV Air Wipe MV Air Wipe MV Air Wipe MV Air Wipe MV
Dioxin 0.001 ng/m3 4 ng/m2 6.2
PAH 0.2 ug/m3 300 ug/m2 1046.6
Asbestos 0.0009 f/cc n/a OL OL
OL OL
OL OL
OL
OL
Lead 1 ug/m3 25 ug/ft2 25 ug/ft2 750 68.4 26.9
48.7 135
43.3
39.4
MMVF 0.01 f/cc n/a 91.796
o
H
Silica 4 ug/m3 n/a I
to
s OL = Overloading of particulates
O
MV = Microvac
o
o
I
o
o
(JI
NYC-WTC_000195343
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000195343Source: NYC Law Department, mirrored locally