Consultant payment request for extended asbestos monitoring, 114 Liberty Street,

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, Newyork, NY 10010 Phone: (212) 353-8280 Fax: (212) 353-8306

Attn: Mr. Fabio Pedonc Received: 6+'22/02 200:O0 AM Warren & Panzer Engineers , P.C. ATC Group #1: 8221 228 E. 45th Street Analysis De: 6122/02 New' York NY 10017 Fax (212) 922-0630 Phone: (222) 922.0077 Project; NYC-DEP W & P Pile #: 1079.01,02 114 Liberty, Roof

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 163 Final Rule (AHERA) Aaalytimt Asbestos Area Nox Asbestos P Structures Sen city Concentration San ple Volume ANalAed Asb Typo;) - O.syx-s % ' (S/ce) (S/mm') (&c) Ntes 073 1350.00 0,0674 0 None0etedad 0 '' 0 0,0 2 <14.83 <0.00 8??1 .!

074 13 00 0.0674 0 NeneOeiedad 0 0 0.0041 <14.83 <0.0042 8221 -2

075 3350.00 00674 0 None Detected 0 0 0.6042 <14.83 40.0042 877! .3

076 13S4.G0 0.0674 0 taone Catscted C 0 0.0042 <14.83 <0.0042 .e221 -4

117' 1350.00 0.0674 0 Ct-1R'YS011u_E 0'- 1 0,0042 14.83 0.0042 6221 -S S -

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MARK PEYSAKHOV M1CHASL A GORYCKI, Ph.D.

Analyzed by: Approved by:

D a1 merr The laboratory 15 not respcnsible lot data reotxted In Strtr urea! , Which is dependent on volume collected by non4aborap~rl perycnnel, This lab I:, only respan:lble for data roported in strldureslmm'. This report,rnas no; be reproduced, except in full, wIthout written appIOvat try ATC Associates Inc, This repot nte6 not be used to claim product endorsement by NVLAP or any other a;enry of the J.S. Government Tr+.is repotLS relattes onty to the sampree repartDd above. Quality control data ctcliii 95% ccnRdence Urnits and laboratory ana analysis' acauacy and precision) is available upon tequest

Accredited for NVLAP PLMftEM #101187-0, NY Stall EELAP #108 9

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NYC-WTC 000100749