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Asbestos fiber analysis memo, ATC Associates, June 2002

Machine-extracted title · confidence 100%

Memo from ATC Associates regarding asbestos fiber analysis by TEM microscopy performed for NYC DEP project.

NYC-WTC_000093175–000093181

Folder label: “49 JOHN STREET 1001199 78/28

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NYC 9/11 Public Portal Document

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ATC'Msoctates 104 East 25 Street, New York, NY 10010 .Phot e:(212)353-8280 Fax:(212)353-8306 ( rC Attn: Mr,Pabio )Podone Received: 629/02 5:00:00 PM Warren & Panzer Engineers ,P.C. ATC Group ##; 8334 228 E.4$tb Street Analysis Date; 6/30/02 New York NY 10017 Fax: (212)922-0630 Phone: (212)922-0077 Project: NYC-DEP W & P File dN 1079.01.02 5-27 Dutch Strew, NY NY,East Facade Bldg

Asbestos Fiber Analysis by Transmission Electron Microscopy(TEM)Performed by EPA 40 CPR.Part 763 Final Rifle(AURA) 4Melytieal Asbestos Arco Non Asbesws #Srrueturrs Snuilivity CoMesntration Sempld Polume Anaiyred Ash Type(s) a5,-5 5a (S/cc) (X/'tun). (S/c) Notes

03 1440.00 0.0562 0 None Detected 0 0 0.0048 <17,79 <0.0048 e334 -,

Q5 1440.00 0.0562 0 None Detected 0 0 0.0048 <17.79 <0.0048 9334 -?

06 1440.00 0.0562 0 None Ceatt°C 0 0 0.0048 <17.79 <0.0048 E3S4 -3

07 ..,.....^ 1440.00 0.0562 0 None Det> c o 0 0 0.0048 <17.79 <0.0048 8114 -s

MICHAEL A. GC&YCKI, Ph.D. ROMAN PEYSAKHOV Analyzed bv: g ' ..-. Approve! by:

Disclaimer. The laboratory responsible for ea tp 3a ct'rei/cc, w!+lch dependent 'a

ro ponod is collected by non4aboratofy pxraei nal. This.lab a only responsible on volume

to; date reporte4 in srroclutte tom'. ThIs repon may lot no repouced. except In full, wtout with approval by ATC Associatea Inc TTin report nwy not be used to dalm rot is

product endorsement by NVLAP or any other agency of the U.S. GOVornrn.9nt. T!ita report retetee only to the samples reported above. Cuailty control data (inatuding 95% confidence imilt and bborarory and enelysb' sxurn y and precision) is available Man request 1\ Atxrediced for NVLAP PLMNYEM p101 187.0. NY Stare ELAP*10879

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NYC-WTC_000093176Source: NYC Law Department, mirrored locally

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