Proposal for sampling and assessing building interiors in the vicinity of the World Trade Center site.
NYC-WTC_000149899–000149934Folder label: “BACKGROUND STUDY DATA 11.13”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Craftsman. DRAFT Test B (Equipment Selection) Cleaning will be conducted in two units with basic vacuums as used in Test A but with the addition of a negative air machine (NAM). The NAM produces a negative pressure differential which will serve to capture dust particles through HEPA filtration that become airborne as a result of the cleaning activities.
Scenario 2: (Selection Criteria) Same or similar to Scenario 1.
Test A (Equipment Selection) Cleaning will be conducted in two units using HEPA filtered upright vacuums and HEPA filtered shop vacuums which are available from Hoover, Eureka, Rigid and Craftsman. The upright vacuums from Hoover and Eureka were provided to residents of lower Manhattan, by FEMA and the Red Cross for cleaning of their occupied space.
Test B (Equipment Selection) Cleaning will be conducted in two units using the same vacuums in Test A but with the addition of a NAM.
Scenario 3: (Selection Criteria): Same or similar to Scenario 1.
Test A (Equipment Selection) Cleaning will be conducted in two units using commercial quality HEPA filtered vacuums. These vacuums will be purchased from Nilfisk Advance Vacuum Systems. Vacuums of this type were used by management companies for cleaning residential/commercial spaces in lower Manhattan after the WTC attack.
Test B (Equipment Selection) Cleaning will be conducted in two units using the same vacuums in Test A but with the addition of a NAM.
Scenario 4: (Selection Criteria) Units have a direct exposure to ground zero. Windows were blown out as a result of the WTC collapse. Accumulation of dust on horizontal surfaces measures in inches. This scenario represents a severely impacted space with heavy accumulations of dust and debris. The two commercial spaces (Units 1 and Unit 2) in the building fit this criteria. Both spaces have wall to wall carpeting and acoustical ceiling tiles.
Test A (Equipment Selection) Cleaning will be conducted in both units using Nilfisk HEPA filtered vacuums. Debris that cannot be vacuumed will be manually removed and disposed of. Due to the excessive amount of dust, a minimum of 2 NAM will be used to control airborne dust. Cleaning will continue until all visible dust has been removed.
Test B (Wet Wiping) Additional cleaning of wall surface areas will be conducted to remove any dust residues that may not have been removed by vacuuming. Wiping of the walls with a damp soapy cloth will be performed to remove residual dust that may have adhered to the walls from the force of the collapse.
NYC-WTC_000149905
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NYC-WTC_000160257
Extensive EPA-distributed memo coordinating federal, state and local agency response to World Trade Center environmental issues.
17 shared non-person entities · 1 shared topics · similarity 0.985
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165014
Memo from EPA to multiple NYC, state, and federal agencies coordinating WTC environmental response activities and information sharing.
17 shared non-person entities · 1 shared topics · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗11 shared non-person entities · similarity 0.983
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139527
EPA distributes WTC background study documents on building access and sampling facts to federal, state, and local agencies involved in post-9/11 response.
9 shared non-person entities · similarity 0.977
machine-extracted · confidence unavailable · Check page ↗9 shared non-person entities · similarity 0.977
machine-extracted · confidence unavailable · Check page ↗9 shared non-person entities · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000138694
Forwarding of WTC background study materials and building access fact sheets to DEP staff.
9 shared non-person entities · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000138605
Forwarding of WTC background study documents including building access and sampling fact sheets to agency recipients.
9 shared non-person entities · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000138837
EPA circulates WTC background study documents and sampling fact sheets to inter-agency partners.
9 shared non-person entities · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139519
EPA forwards WTC background study documents regarding building access and residential access to multi-agency recipients for 9/11 response coordination.
9 shared non-person entities · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000149991
EPA message distributing WTC-related dust agreement documentation to EPA, DEP, CDC, FEMA, health, and OSHA representatives.
9 shared non-person entities · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164784
Transmission of revised asbestos sampling results for residential samples collected November-December 2001.
14 shared non-person entities · similarity 0.974
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NYC-WTC_000149898
A record containing background study data related to environmental conditions at the World Trade Center site.
Filed in the same folder
NYC-WTC_000160257
Extensive EPA-distributed memo coordinating federal, state and local agency response to World Trade Center environmental issues.
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NYC-WTC_000165014
Memo from EPA to multiple NYC, state, and federal agencies coordinating WTC environmental response activities and information sharing.
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NYC-WTC_000139527
EPA distributes WTC background study documents on building access and sampling facts to federal, state, and local agencies involved in post-9/11 response.
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