Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

Attn: Fred Burkhardt Received: 9/ 16102 8:00:00 AM ATC Associates Inc. ATC Group #: 8840 104 East 25th Street Analysis Date: 9/17,02 New York NY 10010

' Fax: (212) 353-3599 Phone: (212)353-3230 Project: DEP Cleaan-up Project 4: 22906-0002 12= 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.SN-S 5,1, (S/cc) (S/mtn') (S/cc) Notes

37 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 5840 -35

3S 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 8840 -36

41 2400.00 0.0450 None Detected 0 0 0 0.0036 <22.24 <0.0036 8840 -3,

42 2401/.00 0.04511 0 None Detected 0 0 00036 < 22.24 <00036 AX40 -JA

4'

. 3840 -39

44 24110.00

2400.10 0.0450 0 None Detected 0 0 0.0030 <22.24 <0.0036

0.0450 0 CHRYSOTILE I 0 0.0036 22.24 0.0036 8840 -40

45 2400.00 0.0450 0 CHRYSOTILE I 2 0.0036 66.73 0.0197 8840 -4/

46 2400.00 0.0450 0 CHRYSOTILE 0 1 0.0036 22.24 0.0036 S840 -42

2400.00 0.0450 0 CHRYSOTILE 2 I 0.0036 66.73 0.0107 88JOr -43

ROMAN PEYSAKHOV MICHAEL A. GORYCKI. Ph.D

Analyzed by I ,]4 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 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.

Accredited for NVLAP PLM/TEM #101187-0, NY Slate ELAP 910879

Pt eSu/6

NYC-WTC 000129765