Memorandum comparing asbestos data in Manhattan to other sites and arguing for cleanup under the Superfund statute.
NYC-WTC_000140235–000140258Folder label: “EPA Cate Jenkins”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
by the American Society for Testing and Materials (ASTM) and the International Standards Organization (ISO).
Dr. Chatfield was also the lead investigator in the Ground Zero Task Force study of Lower Manhattan, where state of the art methods were again used. The HP Environmental study, also included in the tables, utilized the best methods which could be devised for characterizing Lower Manhattan.
Whether addressed through a CERCLA action or any other means, Lower Manhattan has not undergone adequate testing. Within EPA itself, we do not have the expertise to design or carry out state of the art testing protocols for asbestos. For other hazardous substances, we do have expertise, but not for asbestos. The experts I know of at this present time include the researchers responsible for the Ground Zero Task Force study (Eric Chatfield and John Kominsky), the researchers for the HP Environmental study (Hugh Granger, Thomas McKee, James Millette, Piotr Chmielinski, and George Pineda), and Michael Beard of Research Triangle Institute.
4. SUMMARY, ASBESTOS RISK ASSESSMENT FOR WTC DUSTS
My December 19, 2001 memo’® provided a detailed rationale for projecting cancer and asbestosis risks from WTC fallout by calculating exposures from the very limited data which is currently available. In that assessment, various exposure scenarios were hypothesized, and risks of lung cancer for smokers and non-smokers, mesothelioma (a cancer of the chest cavity), and asbestos risks were hypothesized. As stated at the beginning of this memorandum, I believe that initiating such an effort fills a critical need that was thwarted in the appropriate EPA offices by the constant reassurance of high level EPA officials that no such assessment was necessary.
PCM-equivalent correction factor and other changes to risks in December 19 memo
My December 19 risk assessment used the concentration of all asbestos fibers, not just “PCM- equivalent” fibers (those longer than 5 ^m, width greater than 0.25 pm, and an aspect ration greater than or equal to 3 to 1) in making calculations of risk. An explanation was provided as to why this correction was not made, along with providing a range of 80 to 90% non-PCM- equivalent fibers for WTC asbestos if such a correction were to be used. This was based on two studies; From the Ground Zero Task Force study,’’ the PCM-equivalent fibers ranged from 1.3 to 20% of total asbestos fibers/bundles for 8 different samples of settled dusts, with a mean of 8.7%. For the HP Environmental study,’’ for 3 air samples, PCM-equivalent fibers ranged from
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NYC-WTC_000140247
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NYC-WTC_000140138
EPA memorandum addressing World Trade Center asbestos contamination status and agency efforts to provide information on the situation.
17 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.983
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140170
EPA memorandum on wipe sampling methods for asbestos in Lower Manhattan buildings, resuspension projections, and cancer risk estimates from WTC dust exposure.
18 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140259
Memorandum detailing procedures for asbestos wipe sampling in Lower Manhattan and estimating associated cancer risks from dust exposure.
18 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140083
Forwarded EPA memorandum dated June 9, 2002, concerning the Asbestos Reservoir and carpet testing methods.
13 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140040
Technical memorandum from EPA discussing ultrasonication testing for asbestos in carpets and HEPA vacuuming effectiveness.
13 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.977
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154652
Internal tracking document for managing reports, comments, and actions related to environmental compliance cases.
19 shared non-person entities · 1 shared topics · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151635
EPA memorandum detailing plans for asbestos wipe sampling, projecting airborne dust levels, and estimating increased cancer risks from WTC dust exposure.
18 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000161674
Document excerpt listing counsel and staff members assigned to a paper on infrastructure related to World Trade Center recovery.
15 shared non-person entities · 1 shared topics · similarity 0.973
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000125845
Draft fact sheet from DOH and DEP addressing tenant concerns regarding asbestos fibers at 105 Duane Street.
24 shared non-person entities · 1 shared topics · similarity 0.973
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155264
Letter from EPA official to a Congressional representative criticizing the adequacy of the 114 Liberty Street cleanup.
15 shared non-person entities · 1 shared topics · similarity 0.967
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000148115
Frequently asked questions and updates regarding disaster assistance, road reopenings, and victim support funds issued in October 2001.
23 shared non-person entities · 1 shared topics · similarity 0.967
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154976
Correspondence criticizing the EPA and DEP regarding asbestos, silica levels, and safety clearance after cleaning at 114 Liberty Street.
15 shared non-person entities · 1 shared topics · similarity 0.967
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Summary of air and dust sampling results collected from private residences and common areas at 250 South End Avenue.
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NYC-WTC_000089519
Computer-generated sequence listing samples including pesticides and toxics analyzed under EPA Method 508 in late November and December 2001.
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NYC-WTC_000089710
Technical record outlining liquid-liquid extraction parameters, including drip rates and reagent lot numbers for environmental sample processing.
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NYC-WTC_000090502
Log sheet detailing liquid-liquid extraction parameters including drip rates and pH measurements for laboratory samples.
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Single page document header identifying the subject property as 250 South End Avenue with associated block and lot numbers.
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