Asbestos air monitoring lab results, 100 Church Street, Mar 2002

NYC 9/11 Public Portal Document

SciLabJob#: 202033428 Page f 1 Client Name: TRC Environmental Corporation Phase Contrast Microscopy (PCM) Fiber Results 35052-0000-00007; 100 Church St./ OSHA Flow Air Fiber Fibers SciLab Client Rate Duration Filtered Fields Fibers Density Cone- TWA Sample # Sample # / Location Collected (liters/min.) (min.) (liters) (Fibers/mm^ ) (Fibers/cc)

01 GS-3/23/02-OSHA-0251 3/23/02 2 321 642 too 4 S.IO <0.004 Alberto Ganay 02 GS-3/23/02-OSHA-0252 3/23/02 2 321 642 too 3 3.82 <0.004 Ramon Rodriguez 03 GS-3Z23/02-OSHA-0253 3/23/02 2 320 640 JOO 4 5.10 <0.004 Manolo Alles 04 GS.3/23/02-OSHA-O254 3/23/02 2 300 600 too 5 6.37 <0.004 Alberto Ganay 05 OS-3/23/02-OSHA-0255 3/23/02 2 300 600 too 4 5.10 <0.004 Ramon Rodriguez I I I 06 GS-3/23/02-OSHA-0256 3/23/02 2 300 600 too 4 5.10 <0.004 Manolo Alias 07 GS-3/23/Q2-OSHA-O257 3/23/02 0 0 0 too 0.5 0.64 Field Blank Footnotes: / I 08 GS-3/23/02-()SHA-0258 3/23/02 0 0 0 too 0.5 0.64 I Field Blank Footnotes: I I I Reporting Notes: (1) Kbefs/cc cannot be cal or iksr^hjUwnYvolumc. Analyzed by: Kenny Harrell j^pkrtlnSiJad; 3r2M)2 1 t Samples antalywd by NIOSH 1400(A) Method. Issue 42, 8/LJ/94: it of Detcoliona 5.5 fibers per 100 fields or 7 fibers/mml This report relates ONLY to (he sample Boalysii expressed as fibersAr] mm of filter area: ND=No fiben observed: NA= Not Analyzed; WalWn.Beckett fiadek field area=0.00785 nua2; TWA » 8 Hr TWA cakulalion asaumei eeio exposure for Kmajoder o( 8 hr period nnl taitipled: Upper 9S% Ceandence limit (Employert Compllanee Ten}- Calculated a« a one sided UCL to ) determine 95% certainly of compliance with the 0.01 fibecZee standard: Eslimated reljlixe standard deviation; Intialab Sr=O.4O5, lnicrlabStsO.45. New York samples (NYSIKSH ELAP Lab* 11480): National Institute of Standards andTedaology Atcredilntloo rctjuliemenis mandate that thia report nmtl not be reproduced except in lull without die approval of die laboraloty. AtHA # 102843.

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