Instructions for completing ventilation system evaluation forms, including requirements for reviewing prior inspection records and maintenance logs.
NYC-WTC_000139874–000139880Folder 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 2 of?
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 central ventilation system, e.g., the air handling unit is located in the mechanical room, the mechanical room is an air mixing chamber for the air handling unit, etc.
Outside air intake, air handling unit - please check for all components that apply. If a listed component is not part of the system, then indicate “not present” (NP) in the right-hand column. If the component is likely to be present, but it cannot be located, indicate “not found” (NF) in the right-hand column. If the listed component is present and is located, but is not accessible for inspection, indicate “inaccessible” (I) in the right-hand column.
Supply air distribution - Roughly estimate the total linear footage of supply air ducts associated with the central ventilation system, and indicate the number of locations where the interior of the duct was accessed for inspection in the spaces provided. Also circle the type of material from which the duct is constructed (e.g., metal, fibrous glass lined metal, masonry, fibrous glass board, flex duct, wood). If more than one type of duct material is present, circle all that apply.
Accessible in-line fire dampers, accessible turning vanes, in-line reheat/cooling coils, supply air diffusers - roughly estimate the number of each type of component present. If the component is completely inaccessible, the estimated quantity should be listed as “unknown”. If the component is clearly not present, the estimated quantity is zero. Indicate the number of locations where the listed component was accessed for inspection in the space provided.
Return air distribution - roughly estimate the total linear footage of return air ducts associated with the central ventilation system, and indicate the number of locations where the interior of the duct was accessed for inspection in the spaces provided. Also circle the type of material from which the duct is constructed (e.g., metal, fibrous glass lined metal, masonry, fibrous glass board, flex duct, wood). If more than one type of duct material is present, circle all that apply.
Return air plenum, return air plenum damper, accessible in-line fire dampers, accessible turning vanes, return air grilles - roughly estimate the number of each type of component present. If the component is completely inaccessible, the estimated quantity should be listed as “unknown”. If the component is clearly not present, the estimated quantity is zero. Indicate the number of locations where the listed component was 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 central ventilation system.
NYC-WTC_000139875
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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 · Same agency, volume and box · similarity 1.000
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 · Same agency, volume and box · similarity 0.999
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 · Same agency, volume and box · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160403
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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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.
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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 0.943
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 0.943
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