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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_000135437
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NYC 9/11 Public Portal Document Mechanica. Exhaust System Identiñication: veo & vaau HECHANICAL EXHAUST FAN#15 Location: MAIN ROOF - 300 ALBANY SREET Associated mecbanical room: cleanY_N System Componests INOTE: if component not present (NP), nut found (NF) or inaccessible (*) please indicate in last column] Exhaust air outlet: Location: Accessible for inspection? X_ N _(explain): - Louvers, grates and/or screens - outside air duct - outside air damper(s) Exbaust fan unit: - blower assembly incl. blower wheel, housing, air vanes, in-line noise attennators - blower housing acoustical lining - vibration collars Exbaust air distribution: - Exhaust air ducts Est total In ft 100 No. locations inspected_1 Specify type (circle): metal fibrous glass lined metal ) maoonry fibrous giess board fex-duct WOOd - Accessible in-line fre dampers Est. totai qty - Accessible turing vanes Est. total qty - Exhaust air grilles Est. total gty. No. locations inspected No. locations inspected No. locations inspected O Other (specify): Other Iaformation: Page 1 of 1 stored chemicais/refuse Surface Dust/ Debris Present? N WTC Dust Present? Component • not present • not found • inaccessible Y Y Y NP NP Y Y NP NP General impression (indicate recommendations for cleaning based on finding of WTC dust): - WTC RELATED DUST WAS OBSERVED INTHE FAN AND 17S coMPoNENT, AND ITS ASSOCIATED DUCTS. - CLEANING 1S REQUIRED FOR WTC RELATED DUST. - CLEAN THE EXHAUSI FAN, ITS COMPONENTS AND ITS ASSOCIATED DOCTS. TY: NP = not present; NF = not found; I= inaccessible; U = uokuown NYC-WTC_000135437

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NYC-WTC_000135437Source: NYC Law Department, mirrored locally

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