NYC-WTC_000229734

NYC 9/11 Public Portal Document

Enviroscience TEM AIR SAMPLE RESULTS •_D hS 00 CUErfT: Tech Clenn SAMPLE DATE: September 24, 2001 Consultants, Inc. ro t3>

21 £50 SwrnfrowN avenue PROJECT NAME; AMEX 22 lliamei KECEIVEI-) DATE; Sepiember 25, 2001 Ronkonkoma, new York i) 779 Ambient PNONE- <631) S>eO3191 AREA. First Hour Cafeteria SAMPLER B. Gallagher FACSMILK (631) 560-3195 WWW.6NVIHOHEAUni.ORG CLIENT#: 00 10233 CTJSTODY tf: 6-05-02 w or EIAP#H681 co G CO NVLAP #2OO.‘331 O tn G co •3? M I O H Sam^ # Satnple Lge^on___ I sun i lind Run Time Flow Rate Volume Fll^Conc, Sensiuviry AirCogc. '-0 minutes “’Ai ’ S/mm2 S/cc tn H 4 -j- Liten O i 14:50 j 17:40 1 G i tbm AL LowcrscaUnaarra 170 9 1530 12.6 0.0032 0.0032 O ' TEkLAT cash regstei { 14:45 [ 17:55 190 63 1615 o.p 0X»3 j <Sens)ttviiy i H M O o TEM A3 S^iatcguBtCT_____ 14:55 17:45 1.70 4 8.5 1445 0.0 0.0034 I <SeBsitivity j H o 3 ! i 3 a j_TKM A4 I !5;(X1 I 1725A 175 ,8, i 1400 37.9 o-«B5 .L.jyioio.j 1 ! §a M 3 i TKMA.5 Uj^i^ .seating area { is.ria i 17:58^ 180 9 : 1620 0.0 0.003 : <Sensitivi<y j 1 M H ! '■ I i i

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Analyzed by. ± _ Date Analyzed: ■7^ J ,S=Asbeslt» rtii»claie$,cc -cubic ceiitinelen, <- lew than. Flow Rate in liters per minute 5

o Snnples wen soalyzad using Ptiilips 400T Truumission Electren Micrutenpe. Asbestos identification IS (Ictennined by the morphology, visual Selected Area Electron CHOrachoa <SAED), and Elemental Analysis using an Energy Dispersive X-ray Analyzer (EDAX). H Conceotriiion cd the filler is calculated by taking Oe number of aabettM smicwrci aod dividing by ifee area analyzed Air concentratinn ix calcukicd by nnulilplying 3 I die effective filter area (EFA> by the filter concentratiem and then dividing by the volume of air ooUecied in cubic cealimcicra (cc). to (—1 The data pQUiaing Ui these cdculatioiu can be found oo the Asbestos Count Sheet 3 The air filler coocennation relates only to air fiber content When samples arc sobmuied by an outside agency for analysts. Eovirosciciice. can only guarantee die O (—1 accuracy of (be fiber conceotraiioti. This report may not be reproduced wiltuKit the express permission of Envirtwcience. Tbit report can not he used to claim o endoncment of products by NVLAP or any agency of the U.S. OovenunenL o I The samplca coBected in the response action area demofistrated a filter concentration of asbestos Uss than seventy structmnes per square millimeter. This response o o action is onusiOcred compkte according to EPA 40 CPR 763. co A remit of zero stnirtures per touare milHmeter is only appOcabU to the area analyzed Test resulu only reflect cocditioiis at tlfu (itue saoipJea wuc Uken. co co Cn CO

NYC-WTC_000229734