Inspection report for possible WTC debris, 75-79-81 Nassau Street, Nov

NYC 9/11 Public Portal Document -,,.~ ~•" !!.1 ALt1WLL.dN E A — SCOPE OF WORK

Dust/Dirt/Debris Suspect WTC-Related Dust d Estimate % of total dust •

loading C System Light Heavy Component (<1/l6 inch (2 1/16 inch Present? System Components . Substrate Material None depth) depth (Y/N) Outside air intake louvers, grates and/or screens ' Outside air duct Outside air damper(s) Return air grilles' . Return air plenum . Return air plenum damper Return air ducts Turning vanes - Mixing chambers . Filter rack(s) Filter banks/media Pre-heat coils Cooling coils Re-heat coils H urnidification and/or aircleaning .equipment Fire dampers In-line re-heat coils Acoustical blower housing lining I - Duct connectors Blower assembly including blower wheel, blower housira, air vanes, in- _. . line noise artenuators, acoustical . treatments (e.g. baffies, duct linings) Condensate drain pan Condensate accumulator Supply air plenum Supply air plenum dLrnper(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 I I Terminal-boxes Open or ducted passive ventilation shaft(s) . Other Information: Unit cycled prior to inspection I Color ofDust/Dirt/Debris I ❑ Filter loading (general impression) I fJ )Pater damage ❑ Filter bypass (describe) l Visible suspect mold growth I ❑ Abraded' ela nmated acoustical lining jEvidence of animal incursion (carcasses, feathers, fecal matter)

NYC-WTC 000099517