Fax cover sheet, 105 Duane Street site file

NYC 9/11 Public Portal Document

(Page 3 or 16)

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Decesrtber 19.2001

Mr. eery. At . -1, Ateeandrr Wall Corpstratioe 60 Raynor Avepuc Rotlkenkoma, New York 11779

Ili s AsbestoaSanplfag. 105-107 Waghingt n, Street, Buddha Dian and Temple

Ocur-Mr. Ai;xarder:

ATC Associates Inc. ATC) has been retained by Alexaltdfr Wall Corperados to- perform sttFsasnplisrtand analysiuet, the above referenced project trite. Air sampling was conducted on Ucmber 11, 2001 foilowiag the September 11. 1001 co1bpso of thewerld Ftad..G baildltgs:

-ire samples were analyzed via Phase Contrast Mioroacopy (NIOS14 7400 Method) by ATC's accralited laboratory (FLAP Cl 0$7) and?6%U tt were 7 )OetCdte w pSUee when- arelysi -wasoem$swdr Thee.TMsvigindica~d-tha~ the area sampled had achieved a clearance standard of 0.01 fibers per cubic centimeter (f/cc), whirls is the NYC Uoparvaent of En rn ortmautni Hratectioe - (t4Yt EP} ro'us:c'4pa4 ry • crieerla folkuwhlg • an- abatonurif ar:sfuiOJ However, it should he noted that the sir monitoring performed was not conducted in cgnjuaetioa with tat ebatesneat process. Therefore,-the re3e anistendsrd w wieic>rt!esMsa eas3 bereompared it ebe-Pennisslble Exposer -Mmit (Psi h of 0.1 Occ over and eight-bout Time Weighted Average (TWA) as depend by OS14A. As you can .act, the NYCDEP clearance• uteri is moreatringeer fh •ttttE~SHA !'EL atni itaer}uan$ y wsst+cwL.

Following is a summary table for the samples collected.

S amrr'EabiavtA Snoplarcailresesfaasat asylret'tl rls~ Prase Cowtrat<t Mieroecopy (PCl►r} nc. sm W..1iw.en.. @tr.a!_ scMs.. lM.meed'C►raale_ Sample Its No. S.mp3eLocsttous Total Air Volume 1l Fibers ! M Field 1et r Cows. fck11sek. WA. 0/.100 A. 07 k WA 01100 NA 01 OuLsittc N. Sbellnw's 0fl ce . 1,Sl S.Lipas• . l ti/10R 0.005 02 Hallway. ettin o the elevator 1,115 Liters 13/100 0.004 03 Nexi t4 do jn r,, tP' of room . L,$1'S t .brre W 04 Khdten area 1,115 l hers 6/100 o.03 US _ omaetoilea mair►. s f,1 e,s. d/WO- X000

04600

LWNYC0004600

NYC-WTC 000125829