NYC 9/11 Public Portal Document
2.1 Central Ventilation System Visual Inspection Form Page 2 of 2
Surfi Co t
System Components , Dust) wre ® sat oma
[NOTE: if componeni:: not present (NP), not found (NF) or inaccessible @ please Debris Dust ® not found
indicate in last colum 3] Present? | Present? | « inaccessible
Other (specify): ;
Other Information:
Filter loading (ligh:, moderate, heavy): Ls1 GiH"T
(1) Abraded/delarrinated acoustical lining
C) Filter bypass (62scribe)
FRA THE LOBBY.
General impression (in licate recommendations for cleaning based on finding of WTC dust):
=m WIC aerated Dust WAY Foun D IN THE RETORN INTAKE.
+ iCH{
m™ CLEANING 1§ RecomMenDED FoR THE GutiBReE SYSTEM Ww
KEY: NP = not present; WF = not found; I= inaccessible; U = unknown
NYC-WTC_000135418
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000135418Source: NYC Law Department, mirrored locally