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← Document results/DEP Box 48/345 SOUTH END AVENUE Block: 16 Lot: 100 BIN: 1083375 395 South End Ave, Building #600
Document / 288 pages

Chain of custody for bulk sampling at 395 South End

Machine-extracted title · confidence 95%

Document tracking environmental samples collected from Building #600 at 395 South End Avenue on January 2, 2002.

NYC-WTC_000121516–000121803

Folder label: “345 SOUTH END AVENUE Block: 16 Lot: 100 BIN: 1083375 395 South End Ave, Building #600

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NYC 9/11 Public Portal Document

104 East 25th Sirec, New Yorlc, New York 10010 www.atC-enwro.Carn 212.353 8280 Fox 212 353.8306

T E S I NC. A S S O C I A

September 27, 2001

ALC Environmental 115 W. 30th Street New York, NY 10001 Attn: Mr. Analysis Re: Report of TEM

Dear Mr. (TEM) samplesmxssaofl electron No. lts of microscopy: Following are the Group • analysis of three PCM air from our

Client: Mid-State Southend Avenue Project Name: 395 Location: Hallways 09/27/01 Samples received in TEM Lab: to you document a transmitt results will triattconformanceewith the These were performed August 15, 1994 - today. The analysesNIOSH method 7402. Issue 2, Aug methodology of the ly re examined at from each of Forty grid openings samles we X and 10,000X} (appr hoxemat 51m relatively low magnifications in length wIdthS greater than greaterw than 3 for structures a le gSum idth and 3um , and having enough to be observed by PCM in be large were detected in the samples These structures would structures analysis. Non -asbestos proportions: the following cellulose F/CC as sample gypsum Asbestos number

8.1% 0.0 02 91.9% 27.3% 0.0 03 72.7% 0.0% 0.0 J 05 100.0% asbestos. no sample exceeds 0.01 F/CC as As a consequence, Dr. Michael A. Gorycki, Director of performed by ATC d/b/a The analyses were supervised These by analyses were Electron Microscopy. only in its ATC Associates Inc. This report may be of this laboratory. reproduced without prior permission entirety and not

NYC-WTC 000121525

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NYC-WTC_000121525Source: NYC Law Department, mirrored locally

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NYC-WTC_000121804 · Box DEP Box 48

Memo from a DEP contractor reporting on visual inspections of ventilation systems for WTC dust contamination at 395 South End Avenue.

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