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← Document results/DEP Box 33/1 NORTH END AVENUE Block: 16 Lot: 225 BIN: 1085502 4 River Terrace, 60 Vesey Street
Document / 15 pages

Indoor environmental quality survey fax, Dec 13, 2001

Machine-extracted title · confidence 100%

Fax cover sheet from Ambient Group dated December 13, 2001 regarding indoor environmental quality surveys.

NYC-WTC_000097632–000097646

Folder label: “1 NORTH END AVENUE Block: 16 Lot: 225 BIN: 1085502 4 River Terrace, 60 Vesey Street

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Scanned page image, NYC-WTC_000097640
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NYC 9/11 Public Portal Document

DEC-13-01 '1'HU 06: b8 PM AM131EN'l' GROUP INC FAX NO, 212 768 1540 P. 10

[ambient labs inc. 159 West 25th Street New York, NY 10001 ELAP #10865 TREPORT OF AIR SAMPLE ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY Project ID: 0211338 Client Name ; Cushman & Wakefield, Inc Project Name: One North End Avenue Field ID: 6445-3 Sample ID : AEM990 11886 Date Received: 12/9/01 Sample Description : 3,.J Rocr J 56a i `.D

Filter Composition : Porosity: 0.45 micron Filt Lot #: Filter Diameter: 25 mm Effective Filter Area: 385 mm2 Air Volume: 1733 ltr Total Filter Area Analyzed: 0.0450 mm2

# Grid Openings: 5 Avg Grid Opening Area :0.0090 mm Grid Lot #; 4083 Analytical Sensitivity : 0.0049 asbestos struct/crn3

Number of Asbestos Number of Structure Types: Structures: LENGTH FIBER CLUSTER Chrysotile : 0 0.5 urn < L < 5 urn MATRIX BUNDLE Amphibole: 0 L>5urn

A: TOTAL CHRYSOTILE STRUCTURE CONCENTRATION: LT ANYL SENS structure/crr13 B: TOTAL AMPHIBOLE STUCTURE CONCENTRATION: LT ANYL SENS structure/crrl~ C: TOTAL ASBESTOS STUCTURE (A+B) CONCENTRATION. LT ANYL SENs structure/crrr3 CONCENTRATION: IN AR LT ANYL SENS structure%rrp

Micrograph ID # for Reported Structures: ON FILTER I LT ANYL SENS structure/mm2

Reported for Ambient Labs Inc. by:

Analysis Date: 12/9/01 INNA NURIK Environmental Analyst Overloaded, NA -Analyzed

12/13/01 THU 19:00 [T%/R% NO 8798]

NYC-WTC 000097640

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NYC-WTC_000097640Source: NYC Law Department, mirrored locally

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