Report on asbestos air sampling at five locations borough-wide, showing levels below residential reoccupancy threshold except at Manhattan site requiring further fiber analysis.
NYC-WTC_000162025–000162028Folder label: “E-mails R. Avaltroni 2001”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Avaltroni, Robert From: Kelpin, Gerry Sent: Monday, October 01, 2001 2:05 PM To: Gilsenan, Michael Cc: Avaltroni, Robert; Radhakrishnan, Krish Subject: XXX Asbestos Sampling at locations well away from ground zero
As of 9/14/01, asbestos sampling was set up at five locations, one in each of the boroughs. The one in Manhattan is located at 600 East 6*” Street, which is between three-quarters to a mile from the site.
All of the results have been below the .01 f/cc threshold that has been used as an indicator of concern for residential reoccupancy. However, there were two exceptions at the 600 East 6 Street site that were above .01. The next level of analysis was done on these samples to determine the number of asbestos fibers in the sample. The standard used for number of fibers in a sample was not exceeded.
We asked the members of the data review group that holds a conference call each day to review results if they felt these sites should be continued based on the data collected to date. The general feeling was that the testing helped support the assumption that asbestos was not migrating long distances from the site and that it was not providing any additional information at this point. One suggestion was that perhaps some of this monitoring effort could be refocused on residential areas just beyond the perimeter sampling locations. There are some gaps in the overall sampling plan. Although the monitoring might not be necessary, it could help resolve questions being raised by the residents that are not in an area that has been directed sampled.
Sampling plans are being adjusted to meet needs that come up as changes in operations take place.
NYC-WTC_000162025
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NYC-WTC_000160912
Internal DEP memo discussing asbestos bulk test result exceeding 1% in an apartment, access denial by building occupants, and options for resolution.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160748
Correspondence discussing the scheduling of meetings with building owners and the need for legal vetting of compliance issues.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160841
Forwarded summary of calls received at the WTC hotline on April 1, 2002, for agency review and action.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164500
DEP internal memo addressing inability to access an apartment for asbestos inspection due to denial of entry and discussing options for resolving a potentially hazardous asbestos…
3 shared non-person entities · 1 shared topics · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164489
Discussion regarding asbestos sampling results in an apartment and potential release of a draft document.
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Request detailing residential cleaning, asbestos air testing, and HEPA vacuum distribution programs for Lower Manhattan with cost estimates.
4 shared non-person entities · 1 shared topics · similarity 0.977
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000141555
Document requesting FEMA mission assignment for indoor air testing and cleaning programs in Lower Manhattan.
4 shared non-person entities · 1 shared topics · similarity 0.975
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