Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

.\ttn: Fred Burkhardt Received: 9116:02 8:00:00 AM .ATC Associates Inc. ATC Group #: 8840 103 East 25th Street Analysis Date: 9/17102 New York NY 10010

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

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Type(s) O.Sp-S Sp (S/cc) (S/mm') (S/cc) Notes 48 2400.00 0.0450 0 CHRYSOTILE 0 I 0.0036 22.24 0.0036 8840 -44

49 2400.00 0.0450 0 CHRYSOTILE 4 0 0.0036 88.97 0.0143 8.51() -45

50 2400.00 0.0450 0 CHRYSOTILE 2 0 0.0036 44.48 0.0071 .y:ji, _JA

I 2400.00 0.0450 0 CHRYSOTILE 3 2 00036 1 1 1.21 0.0178 .5,511/ .4'

0.0451) 44.48 S.o:40 2 •J,V 2400.00 U CHRYSOTILE I 1 0.0036 0.0071

54 2400.00 0.0450 0 CHRYSOTILE 0 I 00036 22.24 0.0036 8340 -J9

2400.00 0.0450 0 CHRYSOTILE 2 0 0.0036 44.48 0.0071 8810 •j0

56 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 6340 -it

' 7 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 • ,ySJU -5?

ROMAN PEYSAKHOV MICHAEL A. GORYCKI. Ph D

analyzed by. pproved by:

Disclaimer The laboratory is not responsible for data reported in structures/cc. which is dependent on volume collected by non-laboratory personnel. Thi b is only responsible for data reported in structures/mm' This report may not be reproduced, except in full, without written approval by ATC Associates Inc. This report may not be used to claim product endorsement by NVLAP or any other agency of the U.S. Government This reports relates only to the samples reported above. Quality control data (including 95% confidence limits and laboratory and analysis accuracy and precision) is available upon request.

,Iccreoitea for NVLAP PLMITEM x101187.0. NY Slate ELAP #10879

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NYC-WTC 000129766