Federal agencies respond to resident concerns regarding the validity of environmental clearance data for 114 Liberty Street.
NYC-WTC_000154948–000154965Folder label: “114 LIBERTY 1 OF 2”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
COPC document, which was adopted as a secondary clearance value for this project, is 1 pg/m’. Although the value chosen for this project was 1 pg/m’, the analytical detection limit available for analyzing crystalline silica in indoor air samples is higher than this value, therefore a result that is below the detection limit is considered to be protective of public health. Four out of eleven samples (36%) were above the detection limit of 11 pg/m’, ranging from 17.2 to 22.1 pg/m’. These values are also above the secondary clearance value.
Although these values are above the clearance value, they are similar to concentrations detected in a background study conducted by USEPA. In the USEPA background study, there was a frequency of detection of 25%, with a range of 4 to 259 /tg/m\ Further, the values from the background study without the maximum value of259 provide a range of 4 to 28 This indicates that the range of values observed in 114 Liberty Street are similar to those observed in the background study. Based on this, it has been determined that the crystalline silica results are similar to background values and therefore additional cleaning is not necessary.
NYC-WTC_000154958
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NYC-WTC_000155002
Federal agencies respond to resident concerns regarding the validity of environmental clearance data for 114 Liberty Street.
30 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151361
A letter defending the validity of DEP and contractor data used to clear residential units at 114 Liberty Street for re-occupancy.
28 shared non-person entities · 1 shared topics · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151379
A letter confirming that DEP has completed all specified clean-up and monitoring activities for 114 Liberty Street.
20 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000102633
A Department of Environmental Protection letter dated April 24, 2003, confirming the completion of clean-up activities and clearance levels at 114 Liberty Street.
19 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000100730
Chain of custody document tracking the collection and transport of asbestos bulk samples for analysis.
19 shared non-person entities · 1 shared topics · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000100789
Laboratory analysis results for asbestos content in beige bulk samples collected from a pizzeria on one of the building floors.
15 shared non-person entities · 1 shared topics · similarity 0.991
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000100796
Laboratory analysis results for asbestos content in beige bulk samples collected from a pizzeria on one of the building floors.
16 shared non-person entities · 1 shared topics · similarity 0.991
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000149432
DEP asbestos project notification form and inspection report dated December 12, 2002.
16 shared non-person entities · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163186
Correspondence regarding corrections to FEMA documentation, focusing on proper indoor and outdoor wipe sampling procedures for environmental testing.
20 shared non-person entities · similarity 0.972
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000112085
Header page identifying records related to environmental work at 20 Vesey Street.
10 shared non-person entities · similarity 0.971
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.
12 shared non-person entities · similarity 0.971
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163168
EPA correspondence transmitting draft letter to FEMA regarding 114 Liberty with attached documentation and data receipt timeline.
18 shared non-person entities · similarity 0.971
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
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NYC-WTC_000154939
Notice instructing staff to preserve original World Trade Center documents collected from 114 Liberty Street for potential legal use.
Filed in the same folder
NYC-WTC_000154940
EPA confirms that primary and secondary clearance levels for contaminants at 114 Liberty Street have been met.
Filed in the same folder
NYC-WTC_000154944
Summary table of chemical test results including lead and dioxin levels at 114 Liberty Street.
Filed in the same folder
NYC-WTC_000154966
Official DEP form notifying authorities of planned asbestos abatement activities at 114 Liberty Street.
Filed in the same folder
NYC-WTC_000154968
Form documenting the collection and chain of custody for asbestos bulk analysis at 114 Liberty Street.
Filed in the same folder