Chain of custody for asbestos air samples, Sept 2002

NYC 9/11 Public Portal Document

Attn: Fred Burkhardt Received; 9'15,02 7:00:00 AM ATC Associates Inc, ATC Group “: 8838 I 04 East 25th Street Analysis Date: 9/16/02 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 \ lyon Asbestos # Structures Sensitivity Concentration Sample lt'olume Analyzed Asb Typefs) 0.5fl-5 5fl (S/cc) (S/m/nt) (S/cc) iVotes

I t 2400 00 0,0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 iiSJS -5

2400 00 0,0450 0 CHRYSOTILE 2 0 0,0036 44,48 0.0071 'S838 -9

13 2400.00 Not Analyzed Overloaded wilh particulates is38 -10

14 2410.00 Not Analyzed Overloaded with particulates 8838 -II

15 2400.00 0.0450 0 CHRYSOTILE 0 0.0036 22.24 0.0036 8838 -12

K'l 2400.00 Not Analyzed Overloaded with particulates S8J8 -13

it; 2410.00 0.0450 0 CHRYSOTILE 0 0.0036 22.24 0.0036 8838 -It

18. 2420.OG 0.0450 0 None Detected 0 0 0.0035 <22 24 <0.0035 S83S -li

19 2420.00 Not Analyzed Overloaded with particulate 8838 -16

ROMAN PEYSAKHOV MICHAEL A. GORYCKI. Ph.D.

Analyzed by: Approved by;

Cisciaimer: T'ne laboratory is nd resocnsibie for data reported n strucures/cc. wnich is teperaert on volume collected 'oy nor-aocratcy personnel, TiVab is only resccnsCie for aata reportec m =:ructures/rnm-' This repon may not oe reproduceo. except m dll. without wntten aporovai by ATC .Associates Inc. This repon may not Se used to ciaim prcouct enocrsement Dy NVLAP or .any other scene/ ot the L.3 Government. This reports relates cniy ’c the samoies reported above. Quality control data 'inciucino Q conncence limits and laboratory ano analysis' accuracy and precision! is avaiiacle coon request.

Accreoiteo ;cr NVLAP Pl.VITTziVl #tCt'8T-0. NV state SLAP 410879

PdfJe 8 of-t

CONFIDENTIAL, CITY_21MC100_003446459

SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000177486