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
an AFD. All horizontal surfaces were wet wiped.
Cleaning Results - This unit met the clearance criteria listed in Table 1.0 for each compound after being cleaned one time.
Asbestos Before Cleaning Samples - Two micro vacuum and five wipe samples were collected for analysis of asbestos. These samples indicate that asbestos was present in the unit prior to cleaning. The two micro vacuum samples detected chrysotile above the detection limit. Three of the five wipe samples were below the detection limit, although four of the five wipe samples detected either chrysotile or amosite.
Post J" Cleaning Samples - Three air, two micro vacuum and five wipe samples were collected for asbestos. The samples were analyzed for PCM and PCMe. The PCM results indicate all three air samples were below the secondaiy numeric criterion of 0.01 fZcc. The PCMe results indicate that all three of the samples were below the primary clearance criterion of 0.0009 S/cc.
The results of the two micro vacuum samples indicate that asbestos was present at levels somewhat similar to those observed before cleaning.
The results of the five wipe samples indicate that asbestos was below the concentrations observed in the pre-cleaning samples and was below the detection limit for all samples.
Dioxin Before Cleaning Samples - Four wipe samples were collected and analyzed for dioxin. The results indicate that dioxin was not present and that the TEQ concentration for all samples was below the primary clearance criterion of 4 ng/m^.
Post P‘ Cleaning Samples - Four post-cleaning wipe samples were collected and analyzed for dioxin. The results indicate that there was dioxin present; however, the TEQ concentration was below the primary clearance criterion of 4 ng/m^ and similar to pre cleanup concentrations.
Gypsum Before Cleaning Samples - Pre-cleaning air samples were not collected.
Post P‘ Cleaning Samples - Two air samples were collected after the first cleaning. Gypsum was not detected above the detection limit of 0.016 mg/m^ in the air samples.
Le^ Before Cleaning Samples - Two micro vacuum samples and four wipe samples were collected. Lead was detected in both micro vacuum samples and two of the four wipe samples at concentrations above the comparison value or primary clearance criterion of 25 pg/ft2. The micro vacuum samples exceeded the comparison value, ranging from 27.1 pg/ft2 to 49.1 pg/ft^ and the two wipe samples exceeded the primary clearance criterion, ranging from 25.3 pg/ft^ and 32.1 p^ft^.
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NYC-WTC_000145775
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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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