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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_000135473
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NYC 9/11 Public Portal Document • Mechanical Exhaust System Identification: wsnaus System Visual inspection Form Location.lu MECHANICAL EXHAUST FAN F6 6 FLIOR- CDT 350 ALBAN STREET Associated mechanical room: clean_ _N dry Y N _N System Components (NOTE: if component not present (NP), not found (NF) or inaccessible (*) please indicate in last column] Exhaust air outlet: Location: Area Served: KTCHENS & BATHEDOHS stored chemicals/refuse Y Surface Dust/ Debris Present? WTC Dust Present? Accessible for inspection? Y_ N _(explain): - louvers. grates and/or screens - outside air duct - outside air damper(s) Exhaust fan unit: Y - blower assembly incl. blower wheel, housing, air vanes, in-line noise attenuators - blower housing acoustical lining - ribration collars Exhaust air distribution: - Exhaust air ducts Est total in ft 50 No. locations inspected 1 Specify type (circle): meta fibrous glass lined metal) masonry fibrous glass board Res-duct wood - Accessible in-line fire dampers Est. total qty_ 5 - Accessible turning vanes Est. total qty - Exhaust air grilles Est. total qty. Other (specify): No. locations inspected_o No. Jocations inspected No. locations inspected O Y Other Information: Page 1 of 1 Component • not present • not found • inaccessible NP NP I NP I General impression (indicate recommendations for cleaning based on finding of WTC dust): - THe UNIT IS NOT WORKING. - SOHE ATTEHAT TO GLEAN WAS HADE, WTC RELATED DUST ABOVE THE LOUVERS, BUT HEANY ACCUHULTTON Of WTe DEBES WAS OBSERUED BELOW THE LOUVERS. - WTC DEBRE WAS OBSEOUED INTHE COMPONENTS oF THt FAN AND ITS ASSOCIATED DUCTWORK - GEANING FOR WTC DEBRIS IS RECOMHENDED.:.. - CIEAN THE EXMAUST FAN UNIT AND IS ASSOCIATED DUCTWORK KEY: NP = not present; NF = not found; I = inaccessible; U = unknown NYC-WTC_000135473

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NYC-WTC_000135473Source: NYC Law Department, mirrored locally

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