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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_000135397
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NYC 9/11 Public Portal Document 2.2 ___ Mechanical Exhaust System Visnal Inspection Form Page lofi Mechanii on: | _ LOWER Rope - cal Exhaust Systen: Identification: | MECHANICAL EXMausy FAnath 3% Locati Area Served: 2 Sout aus Ave Associated mechanical roori: clean CY__N ary AY ——N stored chemicals‘refuse___Y System Components indicate in last column] [NOTE: if component not present (NP), not found (NF) or inaccessible @® please Debris Surface Dust Present? Component ® not present ® not found © inaccessible _ Exhaust air outlet: Accessible for inspection? °{ JN (explain): = _louvers, grates and/or s:reens —_ Outside air duct — Outside air damper(s) Exhaust fan unit: ~_ blower assembly incl, tlower wheel, housing, air vanes, in-line noise attenuators —_blower housing acoustical lining vi Y y cd 7 Y ~ vibration collars NP Exhaust air distribution: ~ Exhaustairducts Est omiinth QD _ No. locations inspected 1 Specify type (circle): (aia) Atrous glass lived metal tmagnry fibrous glass board flacduct wood bd — Accessible in-line fire dar-pers Est. total qty__A No. locations inspected © — Accessible turning vanes Est. total qty No. locations inspected ~ Exhaust air prities Other (specify): Est. total qty No. locations inspected _O Other Information: General impression (indica :e recommendations for cleaning based on finding of WTC dust): i — NO WE pReaten Dest was peszev AND IS AssoameD Dvcts. ~ No Leaning os SEQCIEED FoR UTA ELATED UST. KEY: NP = not present; NF = not found; I = inaccessibie; U = unknown NYC-WTC_000135397 ED 1 THE Héchanical CouPopesnts

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NYC-WTC_000135397Source: NYC Law Department, mirrored locally

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