NYC-WTC_000210718

NYC 9/11 Public Portal Document

o Enviroscience TEM AIR SAMPLE RESULTS r5 G) Tech Clean Consultants, Inc. CUENT; S AMHJE DAW. September 20,2001 rS C3

2150 SMtiMTOwN .Avenue PROJECT NAMI;: AMEX RECHVPDDAIT: Septeroher 21,2001 Ronkonkoma, New York 11 779 C9 HtONE <6305603191 22 Thames, 7ih Floor SAMPl>ER ARIiA: B.Gdhgiier FACStMili; (631) 580-3195 WWW CNVIROHEAiJTO.ORG CUENT#; 00-10231 CUSTODY #: B-04-03 EUKP# 11661 17' GJ NVI AP#200S31-O *-* CJ, 00

OJ Sanagle# Sample Ijuurtion Run Tune Flow Rate Volume FikaConc. S^sitivity Air Cone. a> iDinutes Ayg, Liters S/moi2 S/cc S/cc

TEM Al Mandd office 17:12 20:35 203 7 1421 0.0 0.0034 <Senijtivitv

TEM Al Kate Ouffy office____ 17:15 20:50 .213 7.15 1559 25.25 0.0031 0(»62 TEM A3 Room 710 17:25 J0;54 209 8J irn 0.0 -- <Seiiativity

TEM A4 Rwm7O3___ 17:25 21:00 215 2043 12,63 0.0024 0.0024 TEMA5 Oulsideroom 70,3 17:31 21:05 214 7.5 1605 63.13 0,003 0.015 5 § I2 S .. . . . S=Asb««t« stnicUitec.oc»cvbicocBtiineten, ma^soiiiameter Analyzed by; Date Analyzed: <= jeu (fun, now Rate in Kiers per oaimito o Samples were aoalyiett using Philips 4067 Transralajioo Elccbon Mioroscopr. Asbestos ideniiOcation is determined by the uoiphotogy, visual Selected Area Electron H Diffiraction (SAED), and Elenwatel Analysis using tn Energy IMspersive X-i»y Analyzer (EDAX). K I Conoeflitaiion cw the filler is calculated by taking the nmnber of asbestos atnictnres nod dividing by the area analyzed. Air ooacentiatioo is calculated by onttiplyiag the effective filter tna (EFA) hy flie niter conoentration and then dividing by Ute votame of air collected in cubic ceodtneten (cc). S The data pcstaiaing to these calculations can be found on the Asbestoa Count Sheet -D O

1 o o The air filter couceatration relates only to ah fiber otnleu. When lanples are strbmitied by an outside agency for analysis, Eovirosducc. can only gaaianlee (tie accuracy of the filter concentration This report may not be reparxlaced without (tie express permission of ^vbasdence. This report can not be used to claim endorsement of producU by NVIAP or any agency of the U.S. Govenameat. I o o The samples collected in die response action area demonstrated a fitter cooceateation of asbeshw less than seventy structures per square tniOiiaettr. This response •XI rc acdon is considered complrte according to EPA •Ml CFR 763. co on A result of zero stnetures per square mtOiaKter is only applicable Io (he area analyzed. Teal lesults only reflect conditiQas at (be fime samples were taken. o co

NYC-WTC_000210718