HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document 2.2 Mechanical Exhaust System Visual Insnectinn Fnrm Page 1 of I Mechanical Exhaust System Identificadon. S EJ(kAUST Location- , Area Served: P2 F- T4E,ifl& Associated mechanical room: clean__ jZV N dry ~Y N stored chemicals/refuse Y jN Surface Component System Components . Dust/ WTC • not present [NOTE: if component not present (NP), not found (NF) or inaccessible (1) please Debris Dust . not found Indicate In last column] 1 Present? Present? . Inaccessible Exhaust air outlet: Location:

Accessible for inspection? Y___ (explain):

— louvers, 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 1' Exhaust air distribution: — Exhaust air ducts Est total in ft t ~~ No. locations inspected 0 2• Specify. type (circle): 1 1(i ous glass Lined metal( ) fibrous glass board flex-duct — Accessible in-line fire dampers Est. total qty, 9 No. locations inspected — Accessible turning vanes Est. total qty No. locations inspected NP — Exhaust air grilles Est. total qty No. locations inspected C • J UL tnpq;uy):

Information:

General impression (indicate recommendations for cleaning based on finding of WTC dust): "— WTC U1 WAS O 1ED IN T4f- MC-C4-IAN 'CAL. COMPONE-1siTS AntD i A'-r

-- Q -c-- mo t tz fi "s* REc~v(eefs w'?C ucr1 V u 31. l?f.E HE C{-t A N I CAL Cb wPo -#.fTS ©F Tldt- ¶? 1} J AM) ASS1D CA A TE a -N u c_?S X) f -Er T a 'gE CL~-IVE,V.

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

NYC-WTC 000135388