NYC-WTC_000196748

NYC 9/11 Public Portal Document

Sep 12 02 11:14a PSC eiO-921-9667 P-7

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING PSC •EPA/NVLAP101262-0 •NY DOWELAC 10903 •NJ DEP PA020 • AIHA ACCREDITATION NO 100439 • PADEP06-3S3 •CT DPHPH-023B ■NCDENR699 Analytical Results for ATC Associates WorkOrder: R02090199 Client Reference: 19125-0342

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (“8) (mg/m’) ; (ppm) (us) Client ID: ATC-0904.42M-VOC4 LablD:-04A Date Sampled; 9/4.'2002 Matrix: Charcoal Air Vol.(L); NA

1.1.1-Trichlorosthane <20 20 OSHA 7 09/09/2002 JLS 1,2-Dichloroethane <20 20 OSHA 7 09/09/2002 JLS A Hydrocarbons, Total <20 20 OSHA 7 09/09/2002 JLS Acetone <20 20 OSHA 7 03/09/2002 JLS B Hydrocarbons, Total <20 20 OSHA 7 09/09/2002 JLS Benzene <20 20 OSHA 7 09/09/2002 JLS Chlorobenzene <20 20 OSHA 7 09/09/2002 JLS Chlorofonn <20 20 OSHA 7 09/09/2002 JLS Ethylbenzene <20 20 OSHA 7 09/09/2002 JLS Hexane <20 20 OSHA 7 09/09/2002 JLS Isopropylbenzene <20 20 OSHA 7 09/09/2002 JLS Methylene Chloride <20 20 OSHA 7 09/09/2002 JLS Pentane <20 20 OSHA 7 09/09/2002 JLS Styrene <20 20 OSHA 7 09/09/2002 JLS Tetrachloroethene <20 20 OSHA 7 09/09/2002 JLS Toluene <20 20 OSHA 7 09/09/2002 JLS Tnchloroethene <20 20 OSHA 7 09/09/2002 JLS Xylenes, Total <20 20 OSHA 7 09/09/2002 JLS

(a) Analysis indicates possible breakthrough; back section result is greater than % of the front section result

General Notes. < Less than the indicated limit of detection (LOD). “ Information not available or not applicable. Back sections were checked and showed no significant breakthrough.

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CITY_21MC100_003042749

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