HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document 2.2 Mechanical Exhaust System Visual Inspection Form • Mechanical Exhaust System Identification: Page 1 of 1 MEC-HANIC.AL C -,'; us-1 T-4I '$t2. Location: ,t.y~ Area Served: - Z1 350 Ai€A,Jj STei:~"T eN '~,Ctikebcros Associated mechanical room: clean Y N dry Y N stored chemicals/refuse Y N Sy stem Components Surface Component [NOTE: if component not present (NP), not found D WTC • not present (~ or inaccessible m please Debris Dust • not found indicate in last column] Present? Present? • inacces%1hld

Accessible for inspection? Y , / N _(explain):

— louvers, grates and/or screens — outside air duct — outside air damper(s) N Exhaust fan unit: — blower assembly incl. blower wheel, housing, air vanes, in-line noise anenuators — blower housing acoustical lining — vibration collars Exhaust air distribution: — Exhaust air ducts Est total in ft_O No. locations inspected l Specify type (circle): ,e ou ass me masonry fibrous ¢lass board flex-duct ui — Accessible in-line fire dampers Est. total qty ___ No. locations inspected C) r_ — Accessible turning vanes Est. total qty No. locations inspected — Exhaust air grilles Est. total qty Nf No. locations inspected 0 Other (specify):

Other Information:

eneral impression (indicate recommendations for cleaning based on finding of N%'TC dust): s WTC. S t AS CRS& .VC-D iN 'T+16 ccHPc, "tc cF- ri ~qN,

P.AS Lk: A;3 CSSteito rN -TF4&- r 4s o

C.LCAtJ, tJC1 ~p2. WTC .J -5S 1 CCP'%PetittJA1A Q.t=*? THE tXHC UST RAP T3 i '5Cx.4 A'TGZ 0 t(Yuic j,

I KEY: NP = not present; NF = not found; I = inaccessible! IT - unbnnow

NYC-WTC 000135469