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Document / 13 pages

WTC HVAC Inspection Report, 50 [Street], Feb 2003

Machine-extracted title · confidence 90%

Memo recommending cleaning of lobby and roof HVAC units at 50 [Street] due to WTC dust found during inspection.

NYC-WTC_000133793–000133805
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Scanned page image, NYC-WTC_000133797
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NYC 9/11 Public Portal Document

2.2 Mechanical Exhaust System Visual Form Mech nical Exhaust System Identification: 1 of 1 f3os c_ 1.2 1Al - . Location: n Area Served: i~ Associated mechanical room: clean Y N dry Y N stored chemicals/refuse System Components Surface Component fNOTE: if component not present (NP), not found (NF) or Dust/ WTC iy not inaccessible (I) please Debris Dust present indicate in last column) Present? Present? not found 4 Exhaust air outlet: Location:

Accessible for inspection? Y VocN

louvers, grates and/or screens (explain): ME outside air duct outside air damper(s) Exhaust fan unit: blower assembly incl. blower wheel, housing, air vanes, in-Iine noise attenuators blower housing acoustical lining JV vibration collars Exhaust air distribution: Exhaust air ducts Est total In ft .3 C) No. Iocations inspected_ Specify type (circle): eta fibrous glass lined metal flex-duct wood mas onry fibrous glass board 7 rA Accessible in-line fire dampers Est. total qty No locations inspected Accessible turning vanes Est total qtv No. locations inspected Exhaust air grilles N Est total qty t No locations inspected Other (specify):

Other Information:

General impression (indicate recommendations for cleaning based on finding of WTC dust):

\)J<.._ b u5.I Poc,t i/3 5 yS i €- 1S

KEY: NP = not NF = not found; I = inaccessible_ it =

NYC-WTC 000133797

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NYC-WTC_000133797Source: NYC Law Department, mirrored locally

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NYC-WTC_000133629 · Box DEP Box 55

Memo from Cole Consulting recommending cleaning of HVAC components at 50 [Street] following visual inspection for WTC dust in February 2003.

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NYC-WTC_000130428 · Box DEP Box 53

Memo from Cole Consulting Corporation recommending no HVAC cleaning at a building on the WTC site due to lack of WTC dust.

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