Instructions for inspectors on reviewing building records and identifying WTC dust indicators during HVAC evaluations.
NYC-WTC_000139968–000139974Folder label: “EPA HVAC ACTION PLAN (Indoor Clean up)”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Guidance for Ventilation System Evaluation Form Page 1 of?
GUIDANCE FOR COMPLETING THE VENTILATION SYSTEM EVALUATION FORM
Part 1.0 General Information
Prior inspection report and/or ventilation system maintenance record available for review?
Please request and identify any records maintained by building owner or representatives of post- 9/1 1 inspections of the building or ventilation system, cleaning, repairs, or any other post-9/11 related activity.
Other comments:
Make comments that are relevant to the determination of WTC dust in the building. Appropriate comments may include relevant historical information such as whether the building ventilation systems were operating throughout the WTC collapse. In the absence of prior inspection or maintenance records, it would be appropriate to comment on any cleaning or other modifications to the ventilation system post-9/11.
Ventilation system types:
Central ventilation system - refers to an air handling system that includes supply and return air (the air handling system may also take in outside air). A central ventilation system will typically service common areas such as lobbies, corridors, stairwells, etc.
Mechanical make-up air system - refers to a fan-operated system designed to bring outside air into the building. Mechanical make-up air systems frequently service areas where make up air is required for the operation of other equipment such as boilers, clothes dryers, or kitchen exhaust systems.
Mechanical exhaust system- refers to a fan-operated system used to remove air, moisture and odors from the building, and primarily includes bathroom and kitchen exhaust systems.
Passive shaft/duct - refers to a non-mechanically ventilated shaft that is used for passively transferring either make-up air into the building or exhaust air out of the building.
Other ventilation system - refers to any heating, ventilating or air conditioning system encountered by the HVAC Evaluator that does not fall into one of the above categories.
Part 2.0 Visual Inspection Forms
2.1 Central Ventilation System
Perform the most vigorous visual inspection possible. Minimum inspection equipment should include screwdrivers, a utility knife (for opening panels, diffusers, grilles, etc. that are painted or caulked in place), cordless drill, hole plugs, telescoping mirror, flashlight, and portable
NYC-WTC_000139968
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NYC-WTC_000139874
Instructions for completing ventilation system evaluation forms, including requirements for reviewing prior inspection records and maintenance logs.
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Instructional guidance for completing ventilation system evaluation forms, including documentation of prior inspections, maintenance records, and WTC dust assessment.
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Instructions for reviewing maintenance records and noting historical data regarding WTC dust in buildings.
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EPA correspondence transmitting the final HVAC system inspection checklist and implementation guidance for use by contractors in post-9/11 building cleanup and ventilation system…
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EPA forwards revised HVAC cleaning checklist and proposes meeting to brief DEP staff and contractors on implementation procedures.
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EPA distributes revised HVAC checklist and proposes meeting with DEP and contractors for implementation briefing.
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Memo recommending recleaning of HVAC equipment at 45 Wall Street due to WTC dust found during February 2003 visual inspection.
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Cole Consulting identifies impacted HVAC units at 50 [Street] requiring cleaning due to WTC dust found during a February 2003 inspection.
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Letter from Athenica Environmental Services reporting HVAC and environmental inspections performed at 380 Rector Place on January 13, 2003.
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Invoice from Athenica Environmental Services for HVAC and environmental inspections performed at 380 Rector Place on January 13, 2003.
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NYC-WTC_000139856
Notice instructing that original World Trade Center documents must be preserved as evidence and not disposed of by the Law Department.
Filed in the same folder
NYC-WTC_000139857
Document header instructing that original WTC records must be preserved as evidence for potential legal actions.
Filed in the same folder
NYC-WTC_000139859
Internal memo expressing concerns about advising residents of potential health risks from 15 months of unrealistic HVAC assessment and cleanup, requesting urgent decision-making.
Filed in the same folder
Filed in the same folder
NYC-WTC_000139861
Memo requesting EPA ensure factual information about HVAC matters be prepared for presentation at meeting with City officials, FEMA, and public communications consultant.
Filed in the same folder