Methodology description for asbestos air sampling conducted at 99 Wall Street in October 2001.
NYC-WTC_000094772Folder label: “99 WALL STREET Block: 33 Lot: 22”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
CENTRAL ENVIRONMENTAL, INC. 91 McClellan Street, Bronx, NY 10452 Tel: (718) 293-8727; Fax: (718) 992-4300
METHODOLOGY
The air samples were collected both inside and outside the work area.
The air samples for asbestos inside work area were collected at a flow rate of 2.0 liters/minute during removal (if necessary).
The air sample outside the work area during removal and inside the area after final clean up, were collected at a flow rate of 5.0-15.0 liters/minute.
In addition, one (1) field blank and one (1) sealed blank were also analyzed for QA/QC purposes.
All samples were collected on 0.8 micron, 25mm diameter cellulose membrane filters, using an open three piece cassette.
Aggressive air sampling after final clean up was conducted following the guidelines established by NYC DEP Title 15, NYS DOL Industrial Code 56 and EPA Guidelines.
The air samples were further analyzed following the National Institute for Occupational Safety and Health Procedure NIOSH 7400.
NYC-WTC 000094772
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_000094726
Letter enclosing reports clearing 67 and 99 Wall Street for re-occupancy following environmental testing.
4 shared non-person entities · Same agency, volume and box · similarity 0.953
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000094771
Laboratory results showing asbestos levels below detection limits at 99 Wall Street after cleanup, clearing the site for re-occupancy.
3 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.935
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000095084
Letter from American Stock Exchange enclosing air and bulk sampling reports for Trinity Place properties dated late 2001.
3 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.918
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000105069
Cover letter enclosing air and bulk sampling results for 86 Trinity Place, 22 Thames, and 65 Broadway.
3 shared non-person entities · 1 shared topics · similarity 0.922
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000106270
Letter confirming facade asbestos testing and subsequent cleaning at 153 Chambers Street.
3 shared non-person entities · 1 shared topics · similarity 0.922
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000117493
Cover page for a report detailing annual assessment, bulk sampling, and air monitoring activities at the specified address.
4 shared non-person entities · 1 shared topics · similarity 0.920
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163360
Technical specifications for air quality monitoring work at two Manhattan buildings.
4 shared non-person entities · similarity 0.920
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.
3 shared non-person entities · 1 shared topics · similarity 0.919
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · similarity 0.919
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000149432
DEP asbestos project notification form and inspection report dated December 12, 2002.
4 shared non-person entities · similarity 0.919
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 0.919
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 0.918
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.
NYC-WTC_000094770
Correspondence enclosing inspection reports confirming that 67 and 99 Wall Street are clear for re-occupancy.
Filed in the same folder
NYC-WTC_000094771
Laboratory results showing asbestos levels below detection limits at 99 Wall Street after cleanup, clearing the site for re-occupancy.
Filed in the same folder
NYC-WTC_000094773
Chain of custody form for ambient air quality testing at 99 Wall Street on October 16, 2001, documenting sample collection and fiber results.
Filed in the same folder
NYC-WTC_000094788
Laboratory results for asbestos content in wipe samples collected from 99 Wall Street on October 22, 2001.
Filed in the same folder
NYC-WTC_000094726
Letter enclosing reports clearing 67 and 99 Wall Street for re-occupancy following environmental testing.
Similar indexed content