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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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NYC 9/11 Public Portal Document 2.2 Mechanical Exhaust System Visual Inspection Form Mechanical Exhaust System Identification: Location: MECHANICAL EXHAUST FAN#1 16"400R-RICF - 350 ALSANY DRETT Associated mechanical room: clean_ _N dry _Y Page 1 of 1 System Components indicate in last column] (NOTE: if component not present (NP), not found (NF) or inaccessible (") please Eshaust air outlet: Location: wrea Served 2'E te 15ºE € PENTHOUSE # stored chemicals/refuse N 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: - blower assembly incl. blower wheel, housing, air vanes, in-line noise attenuators - blower housing acoustical lining - ribration collars Ethaust air distribution: - Exhaust air ducts Est. total in ft 160 Specify type (circle): Tetafibrous glass lined metat No. locations inspected / masonry fibrous glass board Rlex-duct wood - Accessible in-line fire dámpers Est. total qty. 15 - Accessible turning vanes Est. total qty - Exhaust air grilles Other (specify): Est. total qty 15 No. Jocations inspected_0 No. locations inspected No. locations inspected_ 0 Other Information: Y Y Y Y Y Component • not present • not found • inaccessible NP NP I NP I General impression (indicate recommendations for cleaning based on finding of WTC dust): - WTC RELATED DUST W'AS ORSERNED iN THE COUDONENTS DF THE FAN •ABOVE AND BELOW THE LOUVERS, SOHE ATTEMPT WAS MADE TO CLAN WIC DEBRIS. WTC PELATED DUST WAS OBSEBVED IN THE DUCTUCEK CLEANING POR WUTC RELATED DUST IS RECOHHENDED CLEAN THE COMPONENTS OF THE FAN AND ITS ASSOCIATED DUCTINORK. KEY: NP = not present; NF = not found; I = inaccessible; U = unknown NYC-WTC_000135461

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NYC-WTC_000135461Source: NYC Law Department, mirrored locally

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