Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

Attn: Fred Burkhardt Received: 9/ 1 6/02 8:00:00 AEI ATC Associates Inc. ATC Group #: 8841 • 104 East 25th Street Analysis Date: 9/18102 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 Su (Bice) (S/mm') (Bice) Notes

20 2390.00 0.0450 0 CHRYSOTILE I 0 ).0036 22.24 0.0036 884/ -/7

21 - 2390.00 0.0450 0 CHRYSOTILE l 1 0.0036 44.48 0.0072 8841 -18

22 None Detected 2400.00 0.0450 0 0 0 0.0036 <22.24 <0.0036 8'84/ -/9

23 2410.00 0.0450 0 CHRYSOTILE 2 0 0.0036 44.48 0.0071 884/ -20

24 2000.00 0.0450 0 None Detected 0 0 0.0043 <22.24 <0.0043 84/ -~/

25. 2000.00 0.0450 0 None Detected 0 0 0.0043 22.24 <0.0043 884/ -22 -

26 2000.00 - Not Analyzed Y Overloaded with particulates 884/ -23

27 2000.00 0.0456 0 CHRYSOTILE 1 0 0.0043 22.24 0.0043 8341 •24

28 1990.00 0.0450 0 CHRYSOTILE 0 1 0.0043 22.24 0.0043 8841 -25

ROMAN PEYSA MICHAEL A. GORYCKI. Ph.D

Analyzed by rvy tt pproved by

/ Cisctaimer The iaooratory is not responsible for data reported in struc:ures;cc, wnlcn is dependent on volume colle .ed by non-iaboratory personnel. Thu e6 is only resccnsibie for data reponeo in strucures;mm'. This report may not be reproduced, except in full, without wntten approval by ATC associates Inc. This report may not oe used :o caum product endorsement by NVLAP or any other agency of the U.S. Government This reports relates only to the samples reported above. Quality cantrcl data (including 35% confidence imrts and laboratory and analysis' accuracy and precision) is available upon request

Accredited for NVLLP PLWTENI X101 .87.0, NY State EL AP 410879

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NYC-WTC 000129729