Report of transmission electron microscopy analysis for bulk samples from 250 Broadway dated September 16, 2001.
NYC-WTC_000105971–000105974Folder label: “250 BROADWAY; Block: 124 Lot: 24 BIN: 1001408 245 Broadway, 2-4 Murray St. 1-7 Park Pl, 239- 247 Broadway”
OCR status: ocr · source: ours
NYC 9/11 Public Portal Document 99/17/2881 88:36 21235335939 ATC ASSOCIATES INC PAGE 93/22. ATC ASSOCIATES INC. — NOB ANALYSIS Batch No. 5S. VA 35 Grid Hox No. YO Bb Operator RIP Sample No. 9-/6-TkK-~-2 Grid LD. ZH& Date S, 16.07 Grid . |Structure]|suucture trpe| _Electroa X-Ray Identity No. No. Fipic|M Oheatontion Obiervation Remarks ' TChrysotile| Amphibole : i \ i / A ys LQ : am! fi £/ fi hl ~ f> [ LQ PALL Hpi ae dg LAA LZ ay ag Ahn ES As A a “| L— F= Single Fiber (1-3 intersections = 1-3 fibers) AMPHIBOLES B= Bundle (>3 fibers <1 fiber diameter apart) Amosite C= Cluster (>3 intersections) Crocidolite M= Matrix Anthophyllite Tremolite NSD= No Struetures Detected Actinolite > Positive diffraction pattern observed conforming to identification criteria. For chrysotile: 7.3A spacing for 020 reflections (= 60um objective aperture}. §.9A spacing for the layer—line repeat (= 1/3 60um objective aperture), 110 and 130 streaks and presence of 002 and 200 reflections. For amphiboles: 5.34 layer-line repeat and approximate 3.5 ratio of non—twinneS layer-line reflection spacing to layer-line repeat distance. A = EDX spectrum observed conforming to identification criteria. Minimum Requirements: Identify 4 fibera by electron diffraction. Chrysotile: 5.34 layer-line (row) spacing with correct 020, 002, 110, 136 and 200 points or streaks. Amphibole: Correct 5.34 layer-line spacing. EDX Requirements: Chrysotile: none. Amp QUANTITATION: , Estimated Percent Asbestos on: Grid 1: Grid 2: Mean (N}:_ hibole: identify amphibole species by EDX. Percent Asbestos in Subsample: (N X K)/G: From PLM NOB ANALYSIS SHEET: 10 X 11 = 4 where 10 = total residue %, 13 = residue asb % TEM and 14 = total: % asb & tyre Also, 1% total asbestos = 100/total residue %. CAOATAY PRIVATENMIEEA CADE! tenuop te NYC-WTC_000105973
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NYC-WTC_000106077
Chain of custody documentation for background sampling including asbestos and lead at 250 Broadway in September 2001.
9 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.964
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000105975
Summary of transmission electron microscopy results for asbestos samples from 250 Broadway dated September 16, 2001.
4 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.943
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000104321
Second volume of ambient air sampling and visual observation results for 105 Duane Street after the WTC collapse.
9 shared non-person entities · 1 shared topics · similarity 0.958
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000104027
Summary of ambient air sampling and visual observations at 105 Duane Street following the WTC collapse.
9 shared non-person entities · 1 shared topics · similarity 0.956
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000131492
Chain of custody and cover letter for transmission electron microscopy analysis of air samples from apartments at 125 Liberty Street.
9 shared non-person entities · 1 shared topics · similarity 0.947
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000123875
Letter from environmental consultants summarizing ambient air sampling and cleanup activities at 225 Rector Place.
9 shared non-person entities · 1 shared topics · similarity 0.945
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000129725
Custody form documenting the transfer and analysis of air samples collected at 125 Water Street in September 2002.
5 shared non-person entities · similarity 0.942
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000095478
Cover page for an air monitoring and bulk sampling report for Building #200 at 375 South End Avenue.
9 shared non-person entities · similarity 0.938
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000107682
Chain-of-custody form containing transmission electron microscopy results for asbestos fiber analysis at a DEP cleanup project dated September 2002.
4 shared non-person entities · similarity 0.937
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000102767
Cover letter and summary of ambient air sampling and cleanup activities at 400 Chambers Street from 2002.
9 shared non-person entities · 1 shared topics · similarity 0.935
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000107288
Automated fax transmission journal record from the New York City Department of Environmental Protection dated October 23, 2002.
3 shared non-person entities · similarity 0.935
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000097135
Cover page for a laboratory report regarding environmental testing at 125 Cedar Street.
3 shared non-person entities · similarity 0.933
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
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NYC-WTC_000105958
Letter dated July 31, 2002, regarding conditions for a proposed license agreement at 250 Broadway.
Filed in the same folder
NYC-WTC_000105961
Report of environmental sampling and cleanup activities at 250 Broadway dated October 11, 2001.
Filed in the same folder
NYC-WTC_000105975
Summary of transmission electron microscopy results for asbestos samples from 250 Broadway dated September 16, 2001.
Filed in the same folder
NYC-WTC_000105988
Laboratory report on asbestos fiber analysis by transmission electron microscopy for 250 Broadway dated October 1, 2001.
Filed in the same folder
NYC-WTC_000105990
Laboratory report detailing lead analysis results from dust wipe samples at 250 Broadway dated October 2, 2001.
Filed in the same folder