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
and analyzed for dioxin. The concentrations of dioxin were slightly higher than the pre cleaning samples. The TEQ concentration for each sample was below the primary clearance criterion of 4 ng/m^.
Post Cleaning Samples (Test 4E) - Two post-cleaning wipe samples and two pre-water wipe samples were collected and analyzed for dioxin. The results indicate that the concentrations of dioxin were similar to the pre-cleaning samples. TEQ concentrations were below the primary clearance criterion of 4 ng/m^.
Gypsum Before Cleaning Samples - Pre-cleaning air samples were not collected.
Post f Cleaning Scanpies (Test 4A) - Two air samples were collected. Gypsum was not detected in the air samples above the detection limit.
Post Cleaning Samples, (Test 4B) - Two air samples were collected. Gypsum was not detected in the air samples above the detection limit.
Post P' Cleaning Scanpies, (Test 4C) - Two air samples were collected. Gypsum was not detected in the air samples above the detection limit.
Lead Before Cleaning Samples - Seven micro vacuum samples and three wipe samples were collected. All seven micro vacuum samples were below the comparison value of 25 pg/ft^. Two of the three wipe samples were above the primary clearance criterion of 25 pg/ft^. The third was below the detection limit. Concentrations of lead in the two wipe samples, which exceeded the primary clearance criterion of 25 pg/ft^, were 38.9 pg/ft^ and 77 gg/ft^
Post Cleaning Samples (Test 4A) - Two air samples, seven micro vacuum samples, and four wipe samples were collected after the first cleaning. The two air samples were below the primary clearance criterion of 1.0 pg/m’. Five of the seven micro vacuum samples were below the detection limit. All seven samples were below the comparison value. Two of the four wipe samples exceeded the primary clearance criterion with concentrations of 42.2 pg/ft^ and 43.9 pg/ft^. Of the remaining two samples, one was below the primary clearance criterion and both were below the detection limit and below the primary clearance criterion.
Post P‘ Cleaning Samples (Test 4B) - Two air samples and four wipe samples were collected. The two air samples were below the primary clearance criterion of 1.0 pg/m’. Two of the four wipe samples exceeded the primary clearance criterion with concentrations of 91.5 pg/ft^ and 79.3 pg/ft^. Of the remaining two, one was below the primary clearance criterion and the other was below the detection limit.
Post Cleaning Samples (Test 4C) - Two air samples and seven micro vacuum samples were collected. The two air samples were below the primary clearance criterion of 1.0 pg/m’. All seven micro vacuum samples were below the comparison value of 25 pg/ft^.
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NYC-WTC_000145797
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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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