Technical guidelines defining which ventilation components are included in the World Trade Center dust evaluation and where dust accumulation occurs.
NYC-WTC_000140296Folder label: “SCOPES OF WORK IN DOOR AIR & CLEANING”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
ADDENDUM #2 World Trade Center Dust Cleaning Program Monitoring Contract Scope of Work
- Rotary metal cutting saw - For covering service openings, sheet metal plates, panels or access doors meeting NADCA 9705, NFPA 90A/90B and SMACNA specifications - Telescoping inspection mirrors and flashlights - Boroscope - HEPA vacuum
6.4 Typical system components for each equipment category
The ventilation systems may contain, but may not necessarily be limited to combinations of the listed components in each category.
6.4.1 Ventilators, wall air conditioning units and window air conditioning units in common spaces
Outside air intake louvers, grates and screens Outside air duct Outside air dampers Return air grille Return air plenum Filter rack Filter media Coils (evaporator) Blower assembly Condensate drain pan In-line electrical resistance strip heaters (in supply ducts connected to unit ventilators) Fire dampers Turning vanes Supply plenum or supply duct liner Supply air diffuser
6.4.2 Fan coil/lieat pump units in common spaces
Return grille Return air plenum Filter rack Filter media Blower assembly Thermal coils Supply plenum Supply diffusers
6.4.3 Central air system
NYC-WTC_000140296
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NYC-WTC_000140471
Addendum listing required inspection equipment and typical HVAC system components for World Trade Center dust cleaning.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.946
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140472
Addendum detailing all ventilation system components to be inspected and cleaned, including intake louvers, ducts, coils, blower assemblies, and duct linings at World Trade Center.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.943
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140297
Addendum defining scope for cleaning World Trade Center dust from ventilation components including ducts, coils, and filters.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.940
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140470
Guidelines for evaluating direct exhaust systems and identifying dust accumulation points in residential ventilation equipment.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.921
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140295
Identification of ventilation system components most likely to have WTC-related dust accumulation, including air intakes, dampers, filters, and downstream components.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.920
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140291
Bibliography section listing standards from NADCA and SMACNA required for conducting World Trade Center dust evaluations in HVAC systems.
1 shared non-person entities · Same agency, volume and box · similarity 0.905
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140466
Document listing applicable standards like ACR 2002 and NADCA 97-05 for the assessment and cleaning of HVAC systems.
1 shared non-person entities · Same agency, volume and box · similarity 0.905
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140304
Data sheet for recording dust presence and depth on central ventilation components including dampers, coils, and blower assemblies.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.904
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163408
Second addendum to monitoring scope including HVAC system checklist and inspection procedures.
1 shared non-person entities · similarity 0.938
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.
1 shared non-person entities · 1 shared topics · similarity 0.904
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000132702
Inspection report documenting HVAC units at 176 Broadway identified as containing World Trade Center debris.
1 shared non-person entities · 1 shared topics · similarity 0.903
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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NYC-WTC_000140280
Document header reiterating the requirement to preserve World Trade Center documents for potential legal proceedings against the City.
Filed in the same folder
Draft contract scope defining regulations and procedures for asbestos cleanup and air sampling assistance programs in Lower Manhattan.
Filed in the same folder
NYC-WTC_000140283
Contract excerpt specifying data submission protocols, laboratory delivery instructions, and monitoring responsibilities for the WTC project.
Filed in the same folder
NYC-WTC_000140284
Addendum to a City contract requiring contractors to handle property claims and authorizing additional financial retainage for performance security.
Filed in the same folder
NYC-WTC_000140286
Review comments on a proposed scope of work document regarding the roles of technicians and monitors in the World Trade Center cleanup process.
Filed in the same folder