HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document 2.2 Mechanical Exhaust System Visual Insnactinn Fnrm Pnactnft Mechanical Exhaust System Identification: Mc Nt C41- EMkAL1ST G I.ocation: Area Served:

Associated mechanical room: clean_EY N dry, Y N stored chemicals/refuse Y N Surface Component System Components Dust/ WTC • nm p [NOTE: if component not present (NP), not found (N1) or inaccessible (I) please Debris Dust • not found Indicate in last column] Present? Present? • inaccessible Exhaust air outlet: Location:

Accessible for inspection? Y___ (explain):

— louvers, grates and/or screens — outmode 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 distribution: P — Exhaust air ducts Est. total In ft f 019 No. locations hspected_ 0 2, Specify type (circle): ml iss li>~d metal +j filzous class board flex-duct w — Accessible in-line fire dampers Est. total qty _ No. locations inspected V — Accessible turning vanes Est. total qty No. locations inspected NP — Exhaust air grilles Est. total qty No. locations inspected 0

Other

e

General impression (indicate recommendations for cleaning based on finding of WTC dust): "'— WTC `i uST v)& 0SS6QIiEt"7 iN T4-tE MCCRANIC.A L COMPONFt.STS AND trs ,~,s5 pc t R'r eD DvC_7s.

-- Cl,.- Nr j `is* Qçu t'e3 I 1. T c. v uS-r. Tr'te HE Cat N t Cb KPo IU E-1UTS c~'F 'rPe- ' }i j AN D jrs A55oc{ATE0 CA~L~ Vc — jS t -ED Tv '& —1i-JD.

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

NYC-WTC 000135386