OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
S; liii illiil Table d.0 s Summary of Cleaning Activity a*
Unfixed Equ^riie^ 'Used Cleaning First Second Third M^kod Cleaning Cleaning Cieiarmig
4D Ridgid® shop vacuum and -f est 2 A Horizontal soap/water Lead (wipe) Cleaiedfor -Eufata*’ uplift, HEPA Surfaces ? exceedance
4"’T)<W Indu.stria! HEPA vacuum, Horizontal & AFD Vertical COPC
5A bidui^al HEPA vacuum, tes*3B Horizontal soap,'water Lead (wipe) cleared for ATD Surfaces , : exceedance ebrc; Industrial HEPA vacuum (3AX3AX3B) Asbestos/ OVerioadand overiuad and COPC Industrial HEPA vacuum. MMVF(alr) MMVF(aif) (asbestos; Horizontal AFD exceedance modiljed- Surface-!! aggxtsaive aiaa 50 Industrial HEPA vacuum; Test 3B Horizontal soap,-water Cleared for AFD Surfaces CGPC /
J* Floor industrial HEPA vacuum, 1 lonzontal & ■st^w^r' ?eiSSiS3;Swsii AEI> Vertical icibOiii
Cedar St Industrial HEPA vacuum, Test 4MB Horizontal & soap/water Cleared for Stairwell AFD Vertical COPC// Suifeces; jA
Indojtrial HEPA vacuum, No-Wet Wipe Shaft AFD Basement Area as Indnstrial HEPA vacuum^ Test 4MB H<irizonfil& soap/water Alpha-quartz Clearedfof Stairwell AFD Vertical - COK'“' Sutfeces ;A exceedance :
2.11 Difficulties Encountered and Resolutions
A discussion of the difficulties encountered during the cleaning portion of the study, along with a discussion of how they were resolved is presented below.
Site Conditions Rummaging. Site debris, abandoned possessions, and construction related waste materials were wrapped in plastic sheeting, and carried to a staged roll-off container. When filled to capacity, the
’ Asbestos air clearance criterion was met using modified aggressive air sampling protocol; however, the clearance criterion was not met using aggressive air sampling. '“silica analytical methods were note received until after project completion. However, a single elevated sample result in a low occupancy area of the building was not considered to be a health hazard. Therefore, no further cleaning was conducted.
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CITY_21MC100_011105254
NYC-WTC_OO0195220
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