NYC 9/11 Public Portal Document
2.1
Central Ventilation System Visual Inspection Form
System Components
(NOTE: if component not present (NP), not found (NI) or inaccessible (I) please
indicate in last column]
Other (specify):
Surface
Dust/
Debris
Present?
Page 2 of 2
Component
WTC
• not present
Dust
resent?notfaund
• inaccessibl
Other Information:
Filter loading (light, moderate, heavy): HEAVY
• Abraded/delaminated acoustical lining
• Filter bypass (describe)
General impression (indicate recommendations for cleaning based on finding of WTC dust):
-WTC DUST" IS. PRESENT: : ONLY IN FRESH AIR INTAKE uP
TO FILiERS.
- WIG rclatrd dust was not observed beyend fhe
filters.
- CLEANING 1S REQUIRED FOR WTL RELATED DUST
FOR THE ENTIRE SYSTEM.
KEY: NP = not present; NF = not found; I = inaccessible; U = unknown
NYC-WTC_000117374
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000117374Source: NYC Law Department, mirrored locally
An HVAC inspection report from Cole Consulting Corporation dated February 13, 2003, recommending cleaning of units at 275 Greenwich Street due to WTC dust.