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HVAC consulting services invoice, NYC WTC site, 2003

Machine-extracted title · confidence 95%

Invoice for HVAC consulting services provided at the World Trade Center site in 2003.

NYC-WTC_000135339–000135553
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Scanned page image, NYC-WTC_000135396
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NYC 9/11 Public Portal Document 2.2 Mechanical Ex haust System Visual Inspection Form Mechanical Exhaust Systen Identification: MECHANKAL EXMAUST FAN#36 Location: LOWER RODF - 2 SOUTHENDArE Area Served: Associated mechanical roori: clean_LYN dry Ly _N stored chemicals/refuse System Components PNOTE: if component not present (NP), aot found (NT) or inaccessible (I) please indicate in last column] Exhaust air outlet: Location: Accessible for inspection? "Y_ N _(expiain): - Iouvers, grates and/or s:reens - outside air duct - outside air damper(s) Exbaust fan unit: - blower assembly incl. t lower wheel, housing, air vanes, in-line noise attenuators - biower housing acousti.al lining - vibration collars Exbaust air distribution: - Exhaust air ducts Estotal la ft 20 No. locations inspected ol Specify type (circle): fbrous elass lined metal masonry Abrous rless board Bz-duct wood - Accessible in-line fire dat ipers Est. total qty - Accessible turning vanes Est. total qty - Exbaust air grilles Est. total qty g Other (specify): No. locations inspected O No. locations inspected No. Locations inspected_O Other Information: Surface Dust Debris Present? Y Y Page 1 of 1 WTC Dust Present? N N N N N Component • not present • nOt fousd • inaccessible NP N I NP. General impression (indica :e recommendations for cleaning based on finding of WTC dust): - No LTE RELATED DUST WAS OBSERUED IN THE MECHANICAL COMPONEATS AND MS ASSOCIATED DUCTS, - NO CLEANING IS REQUIRED FOR WTG RELATED JUST. • KEY: NP = not present; NF' = not found; I = inaccessible; U = unknown NYC-WTC_000135396 1

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NYC-WTC_000135396Source: NYC Law Department, mirrored locally

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