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WTC Vicinity Building Survey Proposal Background Study Data

Machine-extracted title · confidence 95%

Proposal for sampling and assessing building interiors in the vicinity of the World Trade Center site.

NYC-WTC_000149899–000149934

Folder label: “BACKGROUND STUDY DATA 11.13

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NYC 9/11 Public Portal Document

DRAFT WTC Indoor Air/Environment Post Cleanup Pilot Study Sampling Matrix Silica, Asbestos/ Wipe Samples Lead Dioxins PAHs Calcite, Total Dus MMVF Samples Gypsum Ceilings 1 0 0 0 6 0 1 Walls 1 1 1 1 1' 0 5 Bare floor 1 1 1 1 1 0 5 Counter tops or 1 1 1 1 1 1 6 furniture (table tops) Total Wipe 4 3 3 3 3 1 Samples/parameter

Silica, Micro-vacuum Asbestos/ Total # Lead Dioxins PAHs Calcite, Total Dust Samples MMVF Samples Gypsum Carpets or Drapery 3 3 0 0 0 0 6 Fabric Furniture 0 3 3 0 0 0 6 (couch or chair) Total Micro-vacuum 6 6 0 0 0 12 Samples/parameter

Silica, Asbestos/ Total # Indoor Air Samples Lead Dioxins PAHs Calcite, Total Dust MMVF Samples Gypsum Main Living 2 1 0 0 1 0 4 Space(living rooms)

NOTES ' MMVF - Man Made Vitreous Fibers This table does not include the 10% Quality Control samples. The total number of samples presented represents the number of samples to be collected per unit.

NYC-WTC_000149917

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NYC-WTC_000149917Source: NYC Law Department, mirrored locally

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