NYC-WTC_000202503

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlaii Received: 9/5/02 4:00:00 PM N.Y.C. Board of Education ATC Group#: 8810 28-11 Queens Plaza North Analysis Date; 9/6/02 Long Island City, NY 11101

Fa.v: (212) 475-4122 Phone: (212) 477-8941

Project; Nev. Stuyvesant H. S. 345 Chambers St., NY , 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 Ash Type{s) 0.5ft-5 5fl (S/cc) (S/mm^j (S9cc) Notes

08 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 S810 '

09 ; 1928.00 0.0450 0 None Detected 0 0 00044 <22.24 <0.0044 SSIO -9

10 1920.00 0.0450 0 None Detected 0 0 0.0045 22.24 <0.0045 SSIO -10

11 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 SSIO -II

12 ■ ■ 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 SSIO -/2

13 ■ 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8310 -13

14 •. 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 S8l'b- -14

15 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 SSiO -!i

16 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 SSIO -16

MICHAEL A. GORYCKI, Ph.D. MARK PEYSAKHOV .pproved by:

Disclaimer: Trie laboratory is not responsible for data reported in slmctures/cc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reported in strtctureslmml 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 tj .5. 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 PLfMEM #101 '87-0, N7 State EL.AP #10879

Pa fie 2 of.)

CITY_21MC10 0_01127680 8

NYC-WTC_000202504