Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.
NYC-WTC_000145695–000145868Folder label: “NO INFO”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Lead (HVAC) Before Cleaning Samples - One wipe sample was collected. Lead was detected at a concentration above the primary clearance criterion of 25 pg/ft^ with a value of 10700
Post Cleaning Samples - Four air samples were collected. All four samples were below the primary clearance criterion of 1.0 pg/m’. One of these samples was collected from the basement.
HVAC System - Three air samples and two wipe samples were collected after the HVAC system was cleaned. The air sample results indicate that all three air samples were below the detection limit. The two wipe sample results indicated that lead was still present at 25.9 pg/ft^ and 166 pg/ft\ Both of these results were above the primary clearance criterion. Post cleaning lead exceedances were attributed to the composition of the HVAC construction material.
Alpha-Quartz (HVAC) Before Cleaning Samples - Pre-cleaning air samples were not collected.
Post P‘ Cleaning Samples - There were no samples collected after the first cleaning.
HVAC System - One air sample was collected. The air sample was below the detection limit.
Calcite Before Cleaning Samples - Pre-cleaning air samples were not collected.
Post Cleaning Samples - There were no samples collected after the first cleaning.
HVAC System - One air sample was collected after the HVAC system was cleaned. This sample was below the detection limit.
Cristobalite Before Cleaning Samples - Pre-cleaning air samples were not collected.
Post Cleaning Samples - There were no samples collected after the first cleaning.
HVAC System - One air sample was collected after the HVAC system was cleaned. This sample was below the detection limit.
Tridymite Before Cleaning Samples - Pre-cleaning air samples were not collected.
Post Cleaning Samples - There were no samples collected after the first cleaning.
HVAC System - One air sample was collected after the HVAC system was cleaned. This sample was below the detection limit.
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NYC-WTC_000145792
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NYC-WTC_000145027
Notice from NYC Law Department instructing staff to preserve World Trade Center documents for potential legal actions.
28 shared non-person entities · Same agency, volume and box · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000145869
Interim final report from EPA Region 2 detailing a background study of environmental conditions at the World Trade Center site.
28 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155286
Formal letter criticizing the EPA and DEP for alleged failures in cleaning asbestos and silica from 114 Liberty Street.
13 shared non-person entities · 1 shared topics · similarity 0.964
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155174
Chain of custody documentation for cleanup and monitoring samples at 114 Liberty distributed among project team members.
12 shared non-person entities · similarity 0.961
machine-extracted · confidence unavailable · Check page ↗12 shared non-person entities · similarity 0.961
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000138897
Internal DEP coordination regarding comments on 114 Liberty procedures and preparation of a response.
12 shared non-person entities · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000102521
EPA letter confirming that primary and secondary clearance levels for asbestos and other contaminants were met at 114 Liberty Street.
9 shared non-person entities · 1 shared topics · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151524
EPA Region II letter confirming that primary and secondary clearance levels for asbestos and other contaminants were met at 114 Liberty Street.
10 shared non-person entities · 1 shared topics · similarity 0.959
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154940
EPA confirms that primary and secondary clearance levels for contaminants at 114 Liberty Street have been met.
10 shared non-person entities · 1 shared topics · similarity 0.958
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154998
EPA confirms that primary and secondary clearance levels for contaminants at 114 Liberty Street have been met.
10 shared non-person entities · 1 shared topics · similarity 0.956
machine-extracted · confidence unavailable · Check page ↗12 shared non-person entities · similarity 0.956
machine-extracted · confidence unavailable · Check page ↗11 shared non-person entities · similarity 0.954
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Machine-extracted building matches; verify each source. Buildings, never households.
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Archival folder label for September 11 news clippings from the Office of the Mayor, identified as Folder 0123.
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Updated memorandum defining the Red Zone boundaries and listing authorized agencies for entry into the restricted area.
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NYC-WTC_000142373
Directory of organizations providing financial aid, job placement, and space assistance to businesses affected by the disaster.
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NYC-WTC_000145027
Notice from NYC Law Department instructing staff to preserve World Trade Center documents for potential legal actions.
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Policy document outlining NYPD access requirements for building owners and contractors at the site in October 2001.
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