NYC-WTC_000149432
DEP asbestos project notification form and inspection report dated December 12, 2002.
25 shared non-person entities · Same agency, volume and box · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗Document / 146 pages
Chain of Custody Form Instructions for WTC Building Sampling
Machine-extracted title · confidence 100%Instructions and sections for collecting sample location data from a specific building interior.
NYC-WTC_000149537–000149682Folder label: “ATSDR/DHAC_ASTM”
Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Indoor floor dust samples will be collected using the EPA ERT SOP for household dust collection. As much dust as possible will be collected; the area vacuumed will be measured and reported. Samples will be analyzed for crystalline silica, gypsum, mica, and calcite using XRD analysis. Asbestos and fibrous glass will be analyzed using New York State Method 198.1 (polarized light microscopy [PLM]); if <1% asbestos is found. New York State Method 198.4 (transmission electron microscopy [TEM]) analysis will be conducted. The pH of the dust will be tested using EPA SW846 Method 9045C.
2. Outdoor
Outdoor air and settled dust sampling will occur in areas adjacent to the residential building being tested indoors. Sampling will occur concurrently with indoor sampling.
Ambient air sampling will be conducted at breathing height. Air sampling for asbestos will be conducted and analyzed using NIOSH methods 7400 and 7402. Respirable crystalline silica will be sampled and analyzed using NIOSH method 7500. Air sampling for inhalable and thoracic size particles will be conducted using EPA method IP-IOA. The respirable silica sample will be used to analyze the respirable fraction of the dust. The relative amounts (percent weight) of each fraction present will be determined. Each fraction will be analyzed for silica, gypsum, mica, and calcite using XRD analysis, and for fibrous glass using SEM.
Settled surface dust samples will be collected by scooping visible dust into a glass container. A minimum of 25-30 grams of sample is required. The area of the surface sampled (e.g., 100 cm^) will be measured and documented. Samples will be analyzed for crystalline silica, gypsum, mica, and calcite using XRD analysis, and for asbestos and fibrous glass using New York State method 198.1 (PLM). If PLM shows less than<l% asbestos. New York State Method 198.4 (transmission electron microscopy [TEM]) analysis will be conducted. The pH of the dust will be tested using EPA SW846 Method 9045C.
6
NYC-WTC_000149620
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000149620Source: NYC Law Department, mirrored locally
Related records
Browse subjects →Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
Same-box records
NYC-WTC_000149798
Generic form or header page from the Department of Environmental Protection regarding general World Trade Center notices and requests.
24 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗Filed elsewhere
41 shared non-person entities · similarity 0.991
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.
26 shared non-person entities · similarity 0.989
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 · similarity 0.989
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 · similarity 0.988
machine-extracted · confidence unavailable · Check page ↗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 · similarity 0.988
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 · similarity 0.986
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 · similarity 0.974
machine-extracted · confidence unavailable · Check page ↗15 shared non-person entities · 1 shared topics · similarity 0.974
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 · similarity 0.974
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000159829
Coordination memo for WTC recovery inter-agency meeting on building and parks assessment and scope.
22 shared non-person entities · 1 shared topics · similarity 0.974
machine-extracted · confidence unavailable · Check page ↗More like this page
Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000164784
Transmission of revised asbestos sampling results for residential samples collected November-December 2001.
Similarity score 1.000 (not a probability)
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.
Similarity score 1.000 (not a probability)
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.
Similarity score 1.000 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139712
Series of emails forwarding a draft memo between DEP staff members for review and finalization.
Similarity score 1.000 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164960
Draft compilation of asbestos air samples collected from residential areas November-December 2001 by NYC DOH and ATSDR.
Similarity score 0.999 (not a probability)
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.
Similarity score 0.987 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Others also read
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_000146129
Correspondence from NYC Corporation Counsel providing comments on excerpts of a draft EPA evaluation report regarding the WTC response.
Cited alongside this record in an Ask answer
NYC-WTC_000164671
Draft document titled World Trade Center Emergency Safety and Health Plan dated September 30, 2001.
Cited alongside this record in an Ask answer
NYC-WTC_000152439
Letter from Con Edison to DEP regarding follow-up on water pumped from a gas main during the World Trade Center recovery.
Cited alongside this record in an Ask answer
NYC-WTC_000123875
Letter from environmental consultants summarizing ambient air sampling and cleanup activities at 225 Rector Place.
Cited alongside this record in an Ask answer
NYC-WTC_000153382
Document arguing that respirator safety issues fall under OSHA jurisdiction and should be removed from the EPA review.
Cited alongside this record in an Ask answer