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: ocr · source: ours
NYC 9/11 Public Portal Document Table 14.0 Number of Additlonal Cleaning Events Required based on Sampling Method" Compound Sampling Method(s) Total Number of Additionat Cleaning Events 11 Percentage Asbestos Lead Lead MMVF Sihca Air, Micro vacuum and Wipe Air via PCMe Wipe MiCro Vacuum Air Air 9 1 3 1 РАН 100% 82% 27% 9% 27% 9% 0% Braxın Wipe Wipe 0% Table 14.0 indicates the number of additional cleaning events that were required based on the results from the post-cleaning event samples for the residential units by compound and sampling method. The data indicates that using asbestos air sampling with PCMe analysis accounted for the most number of additional cleaning events. Overall, the data suggest that the use of asbestos air sampling as a surrogate testing method is generally a conservative methodology to use to determine if further cleaning is warranted. The study found that conducting asbestos in air sampling after cleaning could be used as a surrogate method for determining It future cleaning was needed, 26The percentages listed in the right-hand column sum to greater than 100% because several of the units had more than one compound above a health-based benchmark after a cleaning event. 114 NYC-WTC_000145812
OCR can misread numbers and units. Confirm readings against the page image before using them.
Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
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.
Page similarity is temporarily unavailable or this page has no indexed vector.
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.
Cited alongside this record in an Ask answer
Updated memorandum defining the Red Zone boundaries and listing authorized agencies for entry into the restricted area.
Cited alongside this record in an Ask answer
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