HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document

• 2.2 Mechanical Exhaust System Visual Inspection Form Page I of I Mechanical Exhaust System Identification: 1)q4Au5T *4- • Location: I Area Served:

Associated mechanical room: clean Y N dry Y N stored chemicals/refuse Y N Surface Component System Components Dust/ WTC . not present [NOTE: if component not present (NP), not found (NF) or inaccessible (I) please Debris Dust . not found Indicate in last column] Present? Present? • iescceccihl~

Accessible for inspection? Y V N (explain):

— louvers, grates and/or screens — outside air duct t — outside air damper(s) P Exhaust fan unit: — blower assembly incl. blower wheel, housing, air vanes, In-line noise attenuators — blower housing acoustical lining N P — vibration collars Exhaust air distribution: — Exhaust air ducts Est. total In ft 3O No. locations inspected Specify type (circle): (i ) d ail!sorn'y tabrous glass board ilex-duct — Accessible in-line fire dampers Est. total qty. No. locations inspected — Accessible turning vanes Est, total qty No. locations inspected — Exhaust air grilles Est total qty io No. locations inspected O Other (specify):

General impression (indicate recommendations for cleaning based on finding of WTC dust): ff,, 11-- H AvSV j FA N 6M{-PNtiN C lC- L:E-7 w r -- 1$ ' . FQcj 2it.F-D :VD IR WTC. T ED 1D V . -- C A J ^r4-i E P- X44 V ST 'PAi.) v N M -A L.OPJ4 )n-4-{ ITS

Co?otJClYS 1 oC 1E1 'D UCT.

: r~r = NF = not found: I = _

NYC-WTC 000135527