Summary table of asbestos fiber concentrations in air and surface wipe samples from Liberty Street and background locations.
NYC-WTC_000140750–000140751Folder label: “M.G: EPA INDOOR AIR WORKING GROUP MTGS.”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Summary
Asbestos Lead Statistic Location Air(PCMe) Microvac Wipe Air Microvac Wipe f/cc fZcm’ f/cm’ pg/m’ Pg/ft" Clearance Criteria 0.0009 30,000* 30,000* I 25 25 125 Cedar Street 0.00153 25.5 110 Liberty_____ 0.00103 272,231 37,380 0.27 39.5 18.3 Average Residential Relief 0.00056 11.38 Background 0.0004 19,316 17,346 0.286 5.49 9.52 125 Cedar Street 0.0009 10.3 Minimum 110 Liberty_____ 0.0004 1,696 742 0.055 0.78 5.02 Detected Residential Relief 0.0004 6.35 Concentration Background 0.0004 1,582 1,187 0.058 2.46 0.53 125 Cedar Street 0.0035 93.1 Maximum 110 Liberty_____ 0.0033 10,967,100^. 233,475 0.757 293 51.6 Detected Residential Relief 0.0016 28.5 Concentration Background 0.0004 72,093 149,055 0.513 9.73 383 125 Cedar Street 31/210 37/101 Frequency of 110 Liberty_____ 18/98 94/102 62/112 25/27 52/99 28/48 Detection Residential Relief 37/1862 10/10 Background 3/97 11/156 19/141 2/88 13/204 60/143 125 Cedar Street 18/210 14/101 Number Above 110 Liberty 7/98 64/102 22/112 0/27 24/99 5/48 Criteria Residential Relief 3/1862 1/10 Background 0/97 2/156 3/141 0/88 0/204 2/143
Note: The datafor each study listed above does not represent a complete data set. Each of the studies are missing some portion ofthe data which was collected. Therefore, the values listed above are donefor comparison only and do not represent actual, verified values for the sites. Additionally, the values only represent samples for which the compound was detected. Thus, the average would be lower when the non-detect samples are included in the calculations using 1/2 of the detection limit. Also note that the datafor 125 Cedar Street, IIO Liberty and the Residential Reliefstudies contain both pre cleaning and post-cleaning data.
* Tier 1 criteria from the COPC document. This represents a concentration that requires aggressive cleaning.
—Draft— 12/11/2002
NYC-WTC_000140750
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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.
3 shared non-person entities · 1 shared topics · similarity 0.940
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154948
Federal agencies respond to resident concerns regarding the validity of environmental clearance data for 114 Liberty Street.
3 shared non-person entities · 1 shared topics · similarity 0.939
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155002
Federal agencies respond to resident concerns regarding the validity of environmental clearance data for 114 Liberty Street.
3 shared non-person entities · 1 shared topics · similarity 0.938
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.
3 shared non-person entities · similarity 0.937
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.
3 shared non-person entities · 1 shared topics · similarity 0.937
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.
3 shared non-person entities · 1 shared topics · similarity 0.936
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.
3 shared non-person entities · 1 shared topics · similarity 0.936
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.
3 shared non-person entities · 1 shared topics · similarity 0.935
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.
3 shared non-person entities · similarity 0.934
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000100730
Chain of custody document tracking the collection and transport of asbestos bulk samples for analysis.
3 shared non-person entities · 1 shared topics · similarity 0.933
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155800
Cover sheet for a fax transmission sent from the US EPA Region 2 office in August 2002.
3 shared non-person entities · similarity 0.933
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.
3 shared non-person entities · similarity 0.932
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_000140640
Notice instructing staff to preserve original World Trade Center documents as potential evidence in future legal actions against the City.
Filed in the same folder
NYC-WTC_000140641
Agenda for a meeting discussing status of activities, public requests, and development of sampling and cleaning plans for WTC debris.
Filed in the same folder
NYC-WTC_000140642
Introduction to a cross-agency group tasked with identifying contaminants of concern and establishing health-based screening levels for the indoor environment.
Filed in the same folder
NYC-WTC_000140643
Documentation describing the methodology for identifying contaminants of concern using historical data and qualitative toxicity screens.
Filed in the same folder
NYC-WTC_000140644
Summary of contaminants removed from the review list due to being non-detectable or found only in trace amounts, including all VOCs.
Filed in the same folder