NYC-WTC_000209873

NYC 9/11 Public Portal Document

ATC Associates 104-East 25 Street, New York, NY 10010 Mi Phone: (212) 353-8280 Fax; (212) 353-8306

Altn; Received: 8/29/02 2:30 00 PM Taylor Evironmental Group ATC Group#: 8783 Analysis Date; 8/29/02

Fax; (516)358-1730 Phone: Project: NYC SCA Project #; M477-15217-29881 Stuyvesanc H. S., Chembers Street, NY,NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Axbestos jrtre Non Asbestos 4 Structures SensicivUy Concentration Sample Volume Analyzed Asb Typefs) B-Su-S Sf, fS/cc) fS/mnrJ (S/cc) Notes

IT-! 1300 50 0,0674 0 None Oetectefl 0 0 0 0044 <1483 <00044 ■S7S3 -/ Ml IT-2 1258.00 0 0674 0 None Delected 0 0 0.0045 <14 S3 <0.0045 a-'33 -2 IM lT-3 1266 50 0 0674 0 None Detected 0 0 0.0045 <14.83 <0 0045 .J-

Ml 1.103 75 0 0674 0 Nona Qeiangc 0 0 0 0044 <14 83 <0 0044 K’lrf-.-J

'r-5 1332 00 0 0674 n None Detected 0 0 0.0043 <)4 83 <0 0043 ”53 -J

IT-6 1341.25 0.0674 0 None Deteasd 0 0 QQ043 <14.83 <0.0043 a’yj -£

rr-T 1232 50 0.0674 0 NoneDeteirted 0 0 0.0046 <14.83 <0 0046 3733 -7

MARK PEYSAKHOV MICHAEL A. GORYCKJ, Ph D

li Analysed by Approved by

Oisdaimer Tha laboratory is roi resoonsible tor data reocned In strucibrESTz wtiirn is cece.-.aen! on voiume coiieciac ty non-laboramry parsonnei Th^ isb a only resconsioie !Of data reportad in stnjaures/mir' This report may not be reproduced, except in lull, without written approval Oy atc Associates Inc Thu report may not oe used to craim .b.'Otluci endorsemeni by NVLAP or any other agency of the U.S. Government This reports relates only to ine samples reported above Quality control dato (mclucmc 55’/, 4 confidence limits and laboratory and analysis' accuracy and precision) is available upon request tf Aarediteo forNVLAP PLWTEM«lon87.o, NY Sate ELAP <=10879

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NYC-WTC_000209873