Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

V ATC Associates 104 East 25 Street, New York, NY 10010 Phone: (212) 353-8280 Fax: (212) 353-8306 Recei ved: 9/18/02 8:00:00 AM • :'•Alto: Fred Burkhardt ATC Group #: 8853 ATC Associates Inc. Analysis Date: 9/20/02 104 East 25th Street New York NY 10010

Phone: (212) 353-8280 Fax: (212) 353-3599 22906-0002 Project: DEP Cleaan-up Project #: 125 Cedar Street, New York, NY

Analysis by Transmission Electron Microscopy (TEM) Performed Asbestos Fiber Rule (AHERA) by EPA 40 CFR Part 763 Final Analytical Asbestos Concentration Area Non Asbestos # Structures Sensitivity u-5 Sp O.5p' (S/cc) (S/mm') (S/cc) Notes Sample Volume Analyzed Asb Type(s) 0 0.0041 < 22.24 < 0.0041 0.0450 0 None Detected 0 03 2100.00 8833 -r • 0 0.0041 < 22.24 < 0.0041 0.0450 0 None Detected 0 04 2100.00 8853 -1 0.0041 <22.24 <0.0041 0 None Detected 0 0 05 2105.00 0.0450 8$53 -3 0.0041 22.24 0.0041 0 CHRYSOTILE 1 0 2100.00 0.0450 8853 -4 — -- - - --- — 0.0041 <22.24 <0.0041 o None Detected 0 0 07. 2105.00 0.0450 8.853 -5 -- - - - -- _

MICHAEL A. GORYCKI, Ph.D. ROMAN PEYSAKHOV proved by: Analyzed by:

by non-laboratoly personnel. This y responsible responsible for date eported In ~, which is dependent on volume not be used to dairn ATC Assoc Inc. ~ reproduced. except in t A without wfi ►apps by for daa re The laboratory is not ~ nt by eslmm'. This repot t be the samples reported above. Quay Conbol do(in ing 95% for data reported in Wier a9wq of the U.S. Government This reports relates only to product endorsement by NVLAP or any accuracy and precision) is available upon request confidence Nmits and laboratay and analysis'

EIAP #10879 Accredited for NVLAP PLMITEM #101187-0. NY State Pagel of 1;

NYC-WTC 000129859