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Document / 6 pages

Proposal for toilet and exhaust system cleaning at 225 [name]

Machine-extracted title · confidence 100%

Letter from TechClean Industries proposing cleaning services for ventilation systems at a specific residential address.

NYC-WTC_000139983–000139988

Folder label: “EPA HVAC ACTION PLAN (Indoor Clean up)

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Scanned page image, NYC-WTC_000139987
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NYC 9/11 Public Portal Document

X 11/NOV.22.200^4 1:54PM 6312123191200 ’ TECH CUBAN N0.49g p.6/7 0012

Inbooi Aim Qu an it I Meckahich Hygiene . ! Mr, Peter Boyle Novembe 27,2001 Page 5 of 5 SCOPE OF WORK *1.' A1 grilles and dift'users, either internal to apartments or in common areas, will be treated as fo Hows: k I a- The grille vnll be remoMed and bagged. b. Bach grille will be water and detergent washed. c. Bach grille will be sanitized with an anti-microbial agent. d, The grille vdll be rc-jnsta1|ed. e. Access to each ajjartment hvill be required three (3) times on the day of the cleaning. 1. Tb<; grUlo win be removed and the ductwork will be sealed. 2. The horvwntal ductwork will be Cleaned. 3. The grills will be re-installed and housekeeping will be done. 2. Ti e kitehen and exhaust ductwork «d!l be addre ssed as follows,-

a. The horizontal di'.ctwork will be cleared using a pneujnatic-powerod whip. b. The horizontal dvotwork will be HEPA vacuumed. c. The vcrrica riser»will be cleaned with a pnesunatic whip or rotating brush depending on the internal size. * d. Any debris will be txapped in a HEPA-filtered ccllocdon device. 8, The exhaust' fans will tw disassembled, MEFA-vacuuxned and re-assembled. f. All internal surfaces, frop: terminal ends of horizontal to the rooftop fan, will be treated withan an airless sp^^er han^wping method. ’tLa.sh'IA '

3. Tile air-handling sy items and associated duettvork will be aobressed as follows:

a. The HVAC system will be sequentially addressed tn the direction of die aiiflow, b. The return ductwork grlll^ will be ch^sncd as discussed in Section 1. c. The horizontal dictwork wll be cleaned using a pneumatic whip. Any debris will b9 collected in a HEPA-filter^ collection unit e. If internal crass section of the ductwork is larger than 24 Inches by 24 inches, a technician will ei ter it ^d will contact-clean with a HEPA vacuum. f. The outside air intake louvers w !l be pressure-washed or HEPA-vacuumed, as applicable. i g< All internal surfaces of the air-hardling unit will be HEPA vacuumed to 99.97% efiRciency at .3 microns..,. h. The coils will be high-pre4sure water-washed or HEPA vacuumed, as applicable. i. The supply duev/ ork will be cleaned using the same protocols described above. j- All internal surfixes of the air delivery system will be treated with an anti-microbial agent via an. airie» sprayer or hand-wiping method.

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i NYC-WTC_000139987

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NYC-WTC_000139987Source: NYC Law Department, mirrored locally

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