NYC-WTC_000149432
DEP asbestos project notification form and inspection report dated December 12, 2002.
23 shared non-person entities · Same agency, volume and box · similarity 0.971
machine-extracted · confidence unavailable · Check page ↗Document / 85 pages
EPA air monitoring chain of custody, Jan 2003
Machine-extracted title · confidence 95%A chain of custody cover sheet for air monitoring samples sent to the EPA Region 1 laboratory in January 2003.
NYC-WTC_000149346–000149430Folder label: “AIR MONITORING - LAB”
Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Environmental Protection Agency Pt. 763, Subpt. E. App. A
Count clusters as 1 structure; fibers having greater than or equal to 3 intersections.
Count matrix as 1 structure.
□0 NCT CDUOT AS SITOOTRES:
Fiber protrusion <5:1 Aspect Ratio No fiber protusion Fiber protrusion <0.5 micraneter
—“ <0.5 micraneter in length <5:1 Aspect Ratio
i. Fiber. A structure having a minimum from the group. Groupings must have more length greater than or equal to 0.5 gm and an than two Intersections. aspect ratio (length to width) of 5:1 or great iv. Matrix. Fiber or fibers with one end free er and substantially parallel sides. Note the and the other end embedded in or hidden by appearance of the end of the fiber, l.e., a particulate. The exposed fiber must meet whether it is fiat, rounded or dovetailed. the fiber definition. ii. Bundle. A structure composed of three b. Separate categories will be maintained or more fibers in a parallel arrangement for fibers less than 5 gm and for fibers equal with each fiber closer than one fiber diame to or greater than 5 gm in length, ter. c. Record NSD when no structures are de ill. Cluster. A structure with fibers in a tected in the field. random arrangement such that all fibers are d. Visual identification of electron diffrac intermixed and no single fiber is Isolated tion (ED) patterns is required for each asbes tos structure counted which would cause the
677
NYC-WTC_000149403
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NYC-WTC_000149403Source: NYC Law Department, mirrored locally
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NYC-WTC_000139257
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000138897
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machine-extracted · confidence unavailable · Check page ↗15 shared non-person entities · similarity 0.961
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155174
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16 shared non-person entities · similarity 0.961
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155394
Transmission of cleanup and environmental monitoring documentation for 114 Liberty post-WTC dust remediation project.
14 shared non-person entities · similarity 0.961
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