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
the detection limit.
Tridymite Before Cleaning Samples - Pre-cleaning air samples were not collected.
Post J" Cleaning Samples (Test 4A) - Two air samples were collected. Both air samples were below the detection limit..
Post P‘ Cleaning Samples (Test 4B) - Two air samples were collected. Both samples were below the detection limit.
Post P‘ Cleaning Samples (Test 4C) - Two air samples were collected. Both were below the detection limit.
MMVF Before Cleaning Samples - Four air samples and three wipe samples were coUected. AU four air samples were above the detection limit. MMVF was detected above the primary clearance criterion of 10 SZL in two of the four air samples. The three wipe samples had detectable concentrations of MMVF.
Post Cleaning Samples (Test 4A) - Three air samples and four wipe samples were collected. MMVF was present in all, but at concentrations below the primary clearance criterion of 10 SZL. All of the wipe sample results were below the concentrations detected during pre-cleaning sampling, with one below the detection limit.
Post P‘ Cleaning Scanpies (Test 4B) - Three air samples and four wipe samples were collected after the first cleaning. AU three of the air samples were below the primary clearance criterion of 10 SZL, All of the wipe samples were below the concentrations detected during pre-cleaning sampling, with one below the detection limit.
Post P‘ Cleaning Samples (Test 4C) - Five air samples were collected after the first cleaning. MMVF was present in all, but at concentrations below the primary clearance criterion of 10 SZL.
Post Cleaning Samples (Test 4D) - Three air samples were collected after cleaning. All were below the detection limit and below the primary clearance criterion of 10 SZL.
PAH Before Cleaning Samples - One air sample and three wipe samples were coUected. The air sample was below the detection limit. The TEF was below the primary clearance criterion of 0.2 pgZm’. Two of the three wipe samples had PAH compounds detected. One sample detected three PAH compounds and the other detected two PAH compounds. The calculated TEFs for these two samples, as weU as the third sample, were below the primary clearance criterion of300 pgZm^.
Post P‘ Cleaning Samples (Test 4A) - Four post-cleaning wipe samples were collected. All four were below the detection limit; the TEF for each sample was below the primary
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NYC-WTC_000145799
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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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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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