156 WILLIAM STREET; 1001281, 93/20

NYC 9/11 Public Portal Document

ATC Associates 104 Eaat 25 Street, New York, NY 10010 Phone; (212) 333-8280 Fax: (212) 353-8306

Attn: !qtr. Pablo Pedone Received: 7/12/02 8:30:00 AM Warren & Panzer Engineers , P,C. ATC Group #: 8457 228 E. 45th Street Aoslysis Date: 7/12/02 Now York NY 10017 Fax: (212) 922-0630 Pbone: (212) 922-0077 Project: NYC DEP, W&Y# 1079.01.02 156 Williams Street, Roof

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AEERA) 4 afydeal Asbeaeos Arva Non Asbestos 1 Siruukn.c Sensit ivy Coneewe'aeton Sample Volume Anilyred 4sb Types) O43 5N (S/c') (S/mm 2 (S/cc) Noyes

03 1600.00 0.0450 0 None 0etectad 0 0 0.0048 <22.24 <0.0048 R.IS7 .1

04 1800.00 0.0450 0 None Ceteaed 0 0 0.0048 <22.24 <0.0048 8437 .p

05 1800.00 0.0450 0 Noet0eracted 0 0 0.0048 <22.24 <0.0048 6457 -3 ..-- 06 1800.000.0450 0 None 0e1e etl 0 0 0.0048 -22.24 <0.0048 r ~ 8477 .4

07 1800.00 0.0450 0 None Detected 0 0 0.0048 <2224 <0.0048 6457 -3

ROMAN PEYS,AK.HOv MICHAEL A. OORYCKJ, Ph.D.

Analyzed by: Approved by'

Abclilflllr The k9oratary Is not wlponsble foe data reported in stnrc1trad=wh1ich Is dapenaentco volume oolecled by non-laboratory pe eonael. This lab Ir &* responsible for dale raporded to s6ruelurcalmm'. This report may not be reprode,oed, ai ept in til, wtlhout Whiten approval by ATC A33W OUS Inc. TM mart may not be anti to Beim product endorsement by NVLAP or any other Agenq of the U.S. Govemment This reports nacres only to the samples reported ibow, CualIly control date 0nd4rg 98% cgnidonce Grab and laboratory end analysts' accuracy and pnccelion) is available upon rarCuettt

Acaedhd for NVLAP PLMrrEM 0101137-0, NY Suite ELAP X103178

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