NYC-WTC_000220889

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 4/20/02 8:00:00 PM N Y.C, Board of Education ATC Group#: 7483 28 ■ 11 Queen;; Plaza North Analysis Date: 4/20/02 Long Island City, NY 11101 Fax: (212) 475-41122 Phone: (212) 477-8941 Project: PS SOM 201 Warren Street, New York, NY Playground, Roof All Floors Hallway

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHEFLA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample I'oliime Analyied Ash Type(s) O.Sti-5 Sp (S/cc) (S/mm^) IS/cc) Notes

1)8 1840 DO 0-0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 743.1 -S

ny 1840.00 0.0450 0 None Delected 0 0 0.0047 <22.24 <0.0047 74321 -4

10 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 '■'4.S2 -10

11 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 NS2 -/I

12 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 '432

I.7 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7432

I4 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 "V.'i.t -14

15 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 -4S.1 -ii

16 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 "4S2 -It)

ROMAN PEYSAKHOV .MICH.AEL .A. CORYCKl, Ph D

.Anulvztfd by . / Approved by: MF D sciaiine^ "he .'aocratory is not responsible tor data reported in struciures/cc, which is dependent on volume collected by non-laboratory personnel This iao is only responsible for data reported in structLiresi/nm'. This report may not be reproduced, except in lull, without written approval by ATC Associates Inc. This report may not be used to claim product enoorsernent oy NVL.A° or any other agency of the U.S Government. This reports relates only to the samples reported above. Quality control data (including ?5% confidence lim ts and aboratory and analysis' accuracy and procision) is available upon request.

Accredited torNVL.AP PLMJtV #101187.0 NY State ELAP 310879

/’a^e 2 of 2

CITY_21MC100_000621958 NYC-WTC_000220890