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
Third Floor Hallway - The third floor hallway is an area with plywood floors, and walls made of sheet rock covered with wallpaper glue. The ceiling is also made of sheet rock, and is painted.
Cleaning Method- This area was cleaned using Test 4A and Test 4B. Test 4A used industrial HEPA-filtered vacuums and an AFD, while Test 4B consisted of a soap and water wet wipe of the ceiling only.
Cleaning Results - This unit met the clearance criteria listed in Table l.Q for each compound after being cleaned once.
Asbestos Before Cleaning Samples - There were no samples collected before cleaning.
Post Cleaning Samples - Two post-cleaning air samples were collected. The two air samples were analyzed using PCM, TEM AHERA, and PCMe. The PCM result were all below the secondary numeric criterion of 0.01 f/cc. Similarly, the TEM AHERA results were all below the secondary numeric criterion of0.022 S/cc. The PCMe results were all below the primary clearance criterion of0.0009 S/cc with both samples being below the detection limit.
Dioxin Before Cleaning Samples - There were no samples collected before cleaning.
Post P‘ Cleaning Samples - There were no samples collected after cleaning.
Gypsum Before Cleaning Samples - There were no samples collected before cleaning.
Post P‘ Cleaning Samples - There were two air samples collected after the first cleaning. Gypsum was not detected in any sample.
Lead Before Cleaning Samples — There were no samples collected before cleaning.
Post Cleaning Samples - There was one air sample collected after the first cleaning. The air sample was below the detection limit. Since the primary clearance criterion was met for lead after the first cleaning, no additional lead samples were collected.
Alpha-Quartz Before Cleaning Samples - There were no samples collected before cleaning.
Post Cleaning Samples - There were two air samples collected after the first cleaning. All of the samples were below the detection limit. Because all of the samples were below the detection limit after the first cleaning, no additional samples were collected for analysis of alpha-quartz.
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NYC-WTC_000145755
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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
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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Machine-extracted building matches; verify each source. Buildings, never households.
Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
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.
Cited alongside this record in an Ask answer
NYC-WTC_000145027
Notice from NYC Law Department instructing staff to preserve World Trade Center documents for potential legal actions.
Cited alongside this record in an Ask answer
Policy document outlining NYPD access requirements for building owners and contractors at the site in October 2001.
Cited alongside this record in an Ask answer