NYC-WTC_000162222
EPA staff distributed an environmental laboratory report to federal and city agencies on May 15, 2002.
30 shared non-person entities · 1 shared topics · similarity 0.976
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EPA interim final report on WTC background study, April 2003
Machine-extracted title · confidence 100%Interim final report from EPA Region 2 detailing a background study of environmental conditions at the World Trade Center site.
NYC-WTC_000145869–000146029Folder label: “INTERIM FINAL April 2003”
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NYC 9/11 Public Portal Document
Data Assessment
The analytical data for each sample collected were evaluated for individual apartments and cumulatively in data sets (e.g., asbestos wipe sample data for residential dwellings, common spaces and a combined data set for residential and common spaces) to derive a background concentration that is representative for Manhattan.
The evaluation for individual apartments compared the reported results for each sample to the health-based criteria developed in the “World Trade Center Indoor Air Assessment: Selecting Contaminants of Potential Concern and Setting Health-Based Benchmarks” report. The analytical data was presented in tabular format for each apartment with text that explains the reported results. Any detected concentration that exceeded the health-based benchmarks were discussed in detail in writing and orally when requested by owner.
Cumulatively, the data were statistically evaluated in this report to provide a mean, standard deviation, minimum and maximum. For each analyte and sample media, a concentration representative of background for Manhattan has been calculated (see table below). These background concentrations will be used to supplement the health-based benchmarks established in the “World Trade Center Indoor Air Assessment: Selecting Contaminants of Potential Concern and Setting Health-Based Benchmarks” report and may be used as an alternative cleanup value if the health-based benchmark cannot be achieved.
WORLD TRADE CENTER BACKGROUND STUDY 3
NYC-WTC_000145878
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NYC-WTC_000145878Source: NYC Law Department, mirrored locally
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NYC-WTC_000148952
Table listing volatile organic compound (VOC) sampling sites and dates outside of Ground Zero from September 2001 to January 2002.
44 shared non-person entities · 1 shared topics · similarity 0.975
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Instructions and sections for collecting sample location data from a specific building interior.
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Forwarded spreadsheet compiling residential asbestos sampling results collected in November-December 2001, including Building 11 reoccupancy assessment.
19 shared non-person entities · 1 shared topics · similarity 0.970
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Draft compilation of asbestos air samples collected from residential areas November-December 2001 by NYC DOH and ATSDR.
20 shared non-person entities · 1 shared topics · similarity 0.969
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164732
Draft spreadsheet of asbestos sampling results from residential locations collected November-December 2001, circulated for review.
20 shared non-person entities · 1 shared topics · similarity 0.969
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139712
Series of emails forwarding a draft memo between DEP staff members for review and finalization.
20 shared non-person entities · 1 shared topics · similarity 0.969
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 0.969
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164784
Transmission of revised asbestos sampling results for residential samples collected November-December 2001.
20 shared non-person entities · 1 shared topics · similarity 0.966
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Internal tracking document for managing reports, comments, and actions related to environmental compliance cases.
12 shared non-person entities · 1 shared topics · similarity 0.964
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NYC-WTC_000146129
Correspondence from NYC Corporation Counsel providing comments on excerpts of a draft EPA evaluation report regarding the WTC response.
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