Draft spreadsheet of asbestos sampling results from residential locations collected November-December 2001, circulated for review.
NYC-WTC_000164732–000164783
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Co-located samples will be collected in 10% of the air samples. While not a true duplicate, evaluation of the results will provide some information on the quality of the sampling technique. Generally, analysis of duplicate samples should be within +/- 25% of each other.
At least two field blanks (or 10% of samples submitted, whichever is greater) per air sample method per sample team will be submitted with the air samples collected each day. Blank cassettes should be opened at the same time as the sample cassettes are opened (just prior to sampling). Blank cassettes will be recapped and stored in a clean area (e.g., closed bag or box) with the covers from the sampling cassettes during the sampling period. Each air sampling pump will be calibrated with a representative sampling device in-line before and after sample collection. Sample flow rates will be documented in the sampling log. The average of pre- and post-calibration flow rates will be used as the sample flow rate, for sample volume calculations.
Dust samples will be collected using the U.S. Environmental Protection Agency (EPA) Environmental Response Team (ERT) indoor dust sampling standard operating procedure (SOP). Duplicate samples are not feasible with indoor surface dust sample collection. Co-located samples (samples collected from adjacent areas of the floor) will be collected in 10% of the indoor surface dust sample locations. While not a true duplicate, evaluation of the results will provide some information on the variability of contaminants in the dust.
Samples should not be packaged in untreated polystyrene-electrostatic forces may cause fiber loss from some sample filters.
Chain of custody will be established and maintained throughout sample collection, transport, and analysis of the samples. Laboratory analysis shall follow all method-required quality assurance and quality control procedures.
All samples collected, unless analyzed with destructive methods, will be archived until further notice.
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NYC-WTC_000164736
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NYC-WTC_000164960
Draft compilation of asbestos air samples collected from residential areas November-December 2001 by NYC DOH and ATSDR.
26 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 1.000
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164784
Transmission of revised asbestos sampling results for residential samples collected November-December 2001.
24 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139712
Series of emails forwarding a draft memo between DEP staff members for review and finalization.
26 shared non-person entities · 1 shared topics · similarity 1.000
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139656
Forwarded spreadsheet compiling residential asbestos sampling results collected in November-December 2001, including Building 11 reoccupancy assessment.
25 shared non-person entities · 1 shared topics · similarity 1.000
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000149537
Instructions and sections for collecting sample location data from a specific building interior.
26 shared non-person entities · similarity 0.989
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000153220
Draft protocol outlining objectives and locations for assessing airborne and settled dust exposures in residential areas.
16 shared non-person entities · 1 shared topics · similarity 0.987
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000153258
Draft protocol for assessing airborne and settled dust exposures in residential areas following the World Trade Center collapse.
17 shared non-person entities · 1 shared topics · similarity 0.987
machine-extracted · confidence unavailable · Check page ↗18 shared non-person entities · 1 shared topics · similarity 0.982
machine-extracted · confidence unavailable · Check page ↗16 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000152814
Draft document outlining concepts and priorities for sampling buildings near the WTC to identify worst-case contamination scenarios.
15 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000153247
Draft protocol for assessing airborne and settled dust exposures in residential areas following the World Trade Center collapse.
15 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗16 shared non-person entities · 1 shared topics · similarity 0.979
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NYC-WTC_000124241
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NYC-WTC_000124614
Administrative document identifying the location and BIN for properties at 74-90 Church Street.
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