NYC-WTC_000210715

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NYC 9/11 Public Portal Document

(S Enviroscience TEM AIR SAMPLE RESULTS to CLIENT: SAMPIJE DATE; September 24, 2001 Consultants, Inc. Tech Clean fS> no 2150 SMTrurowN Avenue PROJECT NAME; AMEX 22 Tharnci RECEIVED DATE: September 23, 2001 Ronkonkoma, NewYohk I 1779 Ambient Phone: (631)5603191 !? AREA: 5lh Floor SAMPLER; B. Gallagher Facsimile- (631) 5803195 WWW.ENVIROHEALTH.tJRG CLIENT#: 00-10235 CUSTODY#: B-05-05 ELAP# I 1681 m 10 NVLAP #200531<3 »-* cn flO I i (S _Start j ftvl Run Time Flow Rate co i Sample# Sample Location Voturae Filter Cone. Sensitivity Air Cooc. ID _____ i_____ I minutes Avg,^ LJlen S/nim2 tn

TEM A2!i,Elevatof lobby_____ . .11.23 ! 00:47 I 195 8.5 1658 0.0 0.0029 <Seaai(ivity j TEM A29 iUail by room 507 i 2L:24j 00:40 J 196 8.5 1666 00029 gSeaaitivitY I i ... . ! TEM^4HaU^jrpom_52p^ I 21:25 ! 110:41 196 8.5 1666 0.0 OQOW cSengirivity i A3I_ JRpgm 51.4_____ 21:26 i 00:42 196 8.5 1^- 0.0 0.0029 <ScPsi6vitY I iTEMA32!Fan rooni __ 121:28 ia);42 IW 0.0037 cSensltjyity. _ ..L. ._.13I2 03L m r ! TEM A33j Outside room 511 i2L3L>iM;#kt IQI 1357 0.0 (1.0036 eSTOsitiyity^ i ! i ! ■ I i "■ I 5 I ! r-t-- 4.--------

; I I ! i i------------ i--------------------- T _ S=A«besw8 scructures,ec=cuWc ccntinicters. miwsmillimelei Analyzed by: Dale Analyzed: 7 less than, Flow Rate in liters per minute Q Sample* were analyzed using ITolips dOOT Trinsmissicm Electron MlcroKope. Asbestos Identification is deiertnlnsd by the morphology, visual Selected Aiea Electioa H Diffiriction (SAED), and Elemental Analysis using an Energy Dispenive X-ray Analyzer (EDAX). Concentration on the filter is calculated by taking tbe number of asbestos structures and dividing by the area analyzed. Air concentration is calculated by multiplying

I the effective filter area (EFA) by the filler conoentration and then dividing by the volorae of air ooUected io cubic oentimeters (cc). The data pertaining Io tliese calculations can he fmind on tbe Asbestos Count Sheet.

I o o o Tbe air filler exneentratioa relates only to air fiber conleat. When sampler arc submitled by an outside agency for analyiis, Enviroscience. can only guarantee the accuracy of the filler conceniiaiion. This report may not be reproduced without the express permission of Enviroscience. This repost can not be used to claim endorsement of products by NVLAP or any agency of the IfJS. Oovcimnent I, o The samples collected in (he response action area demonstrated a filter concentration of asbestos teas than seventy structures per square millimeter. This response -.1 ro co action is coosidered complete according to EPA 40 CFR 763. CD A result of zero slnidures per .settan* millimeter is only applicable to the area analyzed. Test tesulis only reflect conditions at the lime samples were taken. o o o

NYC-WTC_000210715

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NYC-WTC_000210715Source: NYC Law Department, mirrored locally

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