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…
NYC-WTC_000160403–000160413
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Guidance for Ventilation System Evaluation Form Page 6 of7
type of material from which the passive shaft/duct is constructed (e.g., metal, fibrous glass lined metal, masonry, fibrous glass board, flex duct, wood). If more than one type of material is present, circle all that apply.
Accessible in-line fire dampers - roughly estimate the number of fire dampers located in the supply air outlets or exhaust air inlets of the shaft. If the fire dampers are completely inaccessible, the estimated quantity should be listed as “unknown”. If the fire dampers are not present, the estimated quantity is zero. Indicate the number of locations where the fire dampers were accessed for inspection in the space provided.
Other components-use this space to describe any other component not already included on the form that is part of the passive shaft-duct structure.
Other information - use this space to indicate any other information deemed relevant to documenting the condition of the passive shaft/duct.
General impression - this space is for the HVAC Evaluator’s general impression of whether or not cleaning is indicated based on the presence of WTC dust. The HVAC Evaluator should note any other comments that are deemed relevant to the determination of WTC dust or comments on conditions that would likely impact the scope or feasibility of cleaning.
2.5 Other Ventilation System
This form is for any ventilation system equipment or configuration that does not appear to conform to any of the types 2.1 through 2.4.
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 borescope. In addition, the HVAC Evaluator should attempt to penetrate visible dust to determine if a WTC layer is present.
When a ventilation system component is accessed for inspection, indicate whether or not surface dust/debris is present, and whether or not suspect WTC dust is present in the second and third columns, respectively.
Associated Mechanical Room - indicate if there is a mechanical room associated with the other ventilation system, e.g., one or more components located in the mechanical room.
System components - please list all components of the other ventilation system. If the listed component is located, but is not accessible for inspection, indicate “inaccessible” (I) in the right hand column.
Other information - use this space to indicate any other information deemed relevant to documenting the condition of the other ventilation system.
NYC-WTC_000160412
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NYC-WTC_000161583
EPA distributes revised HVAC checklist and proposes meeting with DEP and contractors for implementation briefing.
3 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.966
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162671
EPA forwards revised HVAC cleaning checklist and proposes meeting to brief DEP staff and contractors on implementation procedures.
4 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139968
Instructions for inspectors on reviewing building records and identifying WTC dust indicators during HVAC evaluations.
3 shared non-person entities · 1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139874
Instructions for completing ventilation system evaluation forms, including requirements for reviewing prior inspection records and maintenance logs.
3 shared non-person entities · 1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139942
Instructions for reviewing maintenance records and noting historical data regarding WTC dust in buildings.
3 shared non-person entities · 1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140029
Instructional guidance for completing ventilation system evaluation forms, including documentation of prior inspections, maintenance records, and WTC dust assessment.
3 shared non-person entities · 1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗2 shared non-person entities · 1 shared topics · similarity 0.967
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000130419
Memo recommending recleaning of HVAC equipment at 45 Wall Street due to WTC dust found during February 2003 visual inspection.
3 shared non-person entities · 1 shared topics · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗3 shared non-person entities · 1 shared topics · similarity 0.959
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000133762
Cole Consulting identifies impacted HVAC units at 50 [Street] requiring cleaning due to WTC dust found during a February 2003 inspection.
3 shared non-person entities · 1 shared topics · similarity 0.957
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000113862
Letter from Athenica Environmental Services reporting HVAC and environmental inspections performed at 380 Rector Place on January 13, 2003.
2 shared non-person entities · 1 shared topics · similarity 0.955
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000113892
Invoice from Athenica Environmental Services for HVAC and environmental inspections performed at 380 Rector Place on January 13, 2003.
2 shared non-person entities · 1 shared topics · similarity 0.955
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
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