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← Document results/DEP Box 36/400 CHAMBERS STREET Block: 16 Lot: 200 BIN: 1085774 Tribeca Park, 34 River Terrace
Document / 109 pages

Air sampling summary report, 400 Chambers Street, 2002

Machine-extracted title · confidence 90%

Cover letter and summary of ambient air sampling and cleanup activities at 400 Chambers Street from 2002.

NYC-WTC_000102767–000102875

Folder label: “400 CHAMBERS STREET Block: 16 Lot: 200 BIN: 1085774 Tribeca Park, 34 River Terrace”

Page image
Scanned page image, NYC-WTC_000102784
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 1200 Lab Group #: 5805 Filter Type / Filter Area: MCE 385 mmz Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: 2 - Area Examined: 0.06744 mmz GRID BOX: Magnification: 20,000 GRID ID: L /Qar3 # Grid Openings: 6 Accelerating Voltage: 100 KeV

Analysis Performed By: ______`•,

ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor EDS No F B C M (Nonadb >=05 µ >=5p Chrys Amphibole Nonadb Ambig/ND No Coord <5µ Elements)

rim z

(I Jam; Z Z /t

_____

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Struct = > 0.5µ > 5:1 Aspect Ratio Grid aaeptance: 1= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5µ '= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) I Anthophylhte Non-Asbestos M= Tremolite Matrix Non-Identified Actinolite NSD = No Structures Detected J

NYC-WTC 000102784

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NYC-WTC_000102784Source: NYC Law Department, mirrored locally

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