Dust/Dirt/Dcbris Suspect WTC-Related Dust
Estimate % of total dust
loading
System Light Heavy
Component (<1/16 inch (i 1/16 inch Present?
System Components Substrate Material None depth) depth (Y/N)
'Outride air intake louvers, grates
and/or screens
"Wtside'air duct
Outside air dampens)
Return air grilles
Return air plenum
Return air plenum damper
Return air ducts
Turning vanes
Mixing chambers
Filter rack(s)
Filter banks/media
_______
Cooling coils
Re-heat coils
Humidification and/or air cleaning
equipment
Fire dampers
In-line re-heat coils
Acoustical blower housing lining
Duct connectors
Blower assembly including blower
wheel, blower housing, air vanes, in
line noise attenuators, acoustical
treatments (e.g. baffles, duct linings)
Condensate drain pan
Condensate accumulator
Supply air plenum
Supply air plenum damper(s)
Supply air ducts
-High pressure - main trunk
-Low pressure - branches
Supply plenum or supply duct
linings
Supply air duct damper(s)
Supply air diffusers..
Terminal boxes
Open or ducted passive ventilation
shaft(s)
Other Information;
Unit cycled prior to inspection n Color of Dust/Dirt/Debris
o Filter loading (general impression) n.Water damage
”0 Visible suspect mold growth
Filter bypass (describe)
~0 Abraded/delaminated acoustical lining □ Evidence of animal incursion (carcasses, feathers, fecal
matter)
NYC-WTC_000140304
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000140304Source: NYC Law Department, mirrored locally