Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

Abut: Fred Burkhardt Received: 9-18/02 4:00:0(1 P.M ATC Associates Inc. ATC Group #: 8859 104 Lust 25th Street .analysis Date: 9 20+02 \e Turk NY 10010

Fax: 12121 .5_ :599 Phone: (212)353-828() Project: {)l P Cleaan-up Protect 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 Analrzed Asb Type(s) 0.5p-5 5p (S/cc) (S/mm'.) (S/cc) Notes

20 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 8150 -l'

2 l 2500.00 0.1450 0 None Detected 0 0 0.0034 <22.24 <0.0034

24o1 o0 0.045u 0 None Detected (► 0 0.0036 22.24 <0 0036

13 - 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 859 .20

24 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 b'8j9 .2/

• 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 $$$9 _.2

2G 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 -23

-'' 2400.00 0.0450 0 CHRYSOTILE I 0 0.0036 22.24 0.0036 5j9 -'4

ROMAN PEYSAKHOV MICHAEL A. GORYCKI. Ph.D.

Analyzed by: Approved by:

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This Ia 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.

• Accreoited for NVLAP PLIvI/TEM 9101187-0. NY State ELAP x10879

NYC-WTC 000129867