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Document / 98 pages

WTC Cleaning Recommendation Memo, 45 Wall Street, January 2003

Machine-extracted title · confidence 98%

Memo recommending cleaning of HVAC components at 45 Wall Street following a visual inspection related to World Trade Center reports.

NYC-WTC_000133531–000133628
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Scanned page image, NYC-WTC_000133626
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OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

Return air plenum Sheet metal White Dust < 1/16 inch Yes 10% (see enclosed on Top pictures) Filter rack Sheet Metal Lined G 21/16 inch Yes 15% (see enclosed pictures) Filter media Fiberglass Disposable G 2 1/16 inch 20x25x2 Blower assembly Sheet metal G < 1/16 inch Thermal coils Aluminum Copper B& G < 1/16 inch

Supply air plenum Sheet Metal W < 1/16 inch Supply air diffuser Sheet Metal G Other Information: Unit needs proper cleaning ® Unit cycled prior to inspection Yes Color of Dust/Dirt/Debris: (see column C Filter loading (general impression) 70% ® Water damage: None Filter bypass (describe) N/A Visible suspect mold growth: No Abraded/delarninated acoustical lining No ® Evidence of animal incursion (carcasses, feathers, fecal matter) : No

4.0 General Impression: Unit McQuay M#MSL117DH, Serial No. 37B00582-04 has been exposed to heavy dust and debris. According to our inspection we recommend that you clean the above-mentioned unit.

NYC-WTC 000133626

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NYC-WTC_000133626Source: NYC Law Department, mirrored locally

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