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
Post Cleaning Samples - Three air, three micro vacuum, and five wipe samples were collected. The three air samples were analyzed using PCM, TEM AHERA, and PCMe. The PCM results were all below the secondary numeric criterion of 0.01 ficc. The TEM AHERA and PCMe analysis could not be conducted due to overloading of particulate material.
The results for the three micro vacuum samples indicate that asbestos was present at levels generally lower than those observed before cleaning. One of the samples was identified as non-detect, although asbestos was detected below the detection limit.
The results for the five wipe samples that were collected indicate that asbestos was present in two of the five samples at lower concentrations than the pre-cleaning samples. One of the two samples in which asbestos was detected was below the detection limit.
Post 2”^ Cleaning Samples - Six asbestos air samples were collected after the second cleaning. The samples were analyzed for PCM, ITEM AHERA, and PCMe. The PCM results were all below the secondary numeric criterion of 0.01 f/cc and were at lower concentrations than after the first cleaning. The TEM AHERA results were all below the secondary numeric criterion of 0.022 S/cc; two of the six samples were below the detection limit. The PCMe results were at or below the primary clearance criterion of 0.0009 S/cc; three of the six samples were below the detection limit.
Dioxin Before Cleaning Samples - Four pre-cleaning wipe samples were collected and analyzed for dioxin. The results indicate that dioxin was present; however, the TEQ concentration for each sample 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 concentrations of dioxin detected were lower than those of the pre cleaning samples. The TEQ concentration for each sample was below the primary clearance criterion of 4 ng/m^.
Gypsum Before Cleaning Samples - Pre-cleaning samples were not collected.
Post 1" Cleaning Samples - Two air samples were collected after the first cleaning. Gypsum was not detected in any sample. Because gypsum was below the detection limit in all of the samples collected, no additional samples were collected for analysis of gypsum.
Lead Before Cleaning Samples - Four micro vacuum samples and four wipe samples were collected. Lead was detected in three of the four micro vacuum samples at concentrations below the comparison value of 25 pg/ft^ one sample was below the detection limit. Three of the four wipe samples had detectable concentrations of lead above the primary clearance criterion of 25 pg/ft^ while the fourth sample was below the detection limit.
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NYC-WTC_000145737
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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
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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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