HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document _- _........ , a a„~use bs 4 isuai inspection r -orm Mecbani=1 Exhaust System Ident catiion 1 of

Location: WiI AL eReus7 t2 ? ,11V 26O'F -- J e o ALBA nr~ .&'£EP-?' Area served: Associated mechanical room: clean Y N dry Y N stored chemicals/rdase Y N System Components Surface ( Component [NOTE: if mpcomponent notpresent INT), not found (1~ P) or inaccessible (1) Dust! WTC • not present please Debris bust . not found indicate in last column] I present? Present? Exhaust air outlet: • inaccessible

Accessible for inspection? Y V N (explain):

— lowers, grates and/or screens — outside air duct — outside air damper(s) Exhaust fan unit: — blower assembly incl. blower wheel, housing, air vanes, in-line noise attenuators — blower housing acoustical lining — vibration collars

— Exhaust air ducts Eat. total in ft a.0 C) No. locations inspected '1 Specify type (circle): c ) a Y fibrous class board flex w Accessible in-line fire dampers Est, total : No. locations inspected — Accessible turning vanes Est. total qty No. locations inspected — Exhaust air grilles Est. total qty No. locations inspected Other (suecifv): 2

Other

General impression (indicate recommendations for cleaning based on finding of WTC dust): V£LAYLD fl u WAS OQ5 AVE,D ?I'J741F- MIJ AMD 17Z Gor1PbfflW7 ,

a I.EA3 >Jc Is, ~+~~fl fgR ''fl 7-ELJr7E1 usr. Gs I ,J -r.i{E ExlrtAu s,1 t I'I-S eo*t?atEN?S ,Kr.O ITS As socr A r uc7 S.

KEY: NP - not present; NF = not found; I = inaccessible; U - unknown

NYC-WTC 000135434