NYC-WTC_000223194

NYC 9/11 Public Portal Document o i u-oc1 -aoo / P- ■'

F=’sc: INDUSTRIAL HYGIENE • EPAINVLAP101262-0 •AIHAACCREDITATIONNO. 100439 ‘NCOENR599 ENVIRONMENTAL TESTING • NY DOWNEIAC 10903 -PA DEP06-353 •WDEPPA020 •CT OPHPH-0238

ANALYTICAL SERVICES Analytical Results for ATC Associates WorkOrder; R02050426 Client Reference: 19125-0246

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (“g) (mg/m’) ; (ppm) (“8) Client ID; VOC4 ATC-0508-STY Lab ID: -04A Date Sampled: 5/8/02 Matrix; Charcoal Air Voi.(L); NA

I.l.l-Trictiloroethane <20 20 Total Hydrocarbon Sc 05/12/2002 jWM

1.2-Di chloroethane <20 20 Total Hyckocartxm Sc 05/12/2002 JMM A Hydrocarbons, Total <20 20 Total HydrocartJon Sc 05/12/2002 JMM Acetone <20 20 Total Hydrocarbon Sc 05/12/2002 JMM S Hydrocarbons, Total <20 20 Total Hydrocarbon Sc 05/12/2002 JIMM Benzene <20 20 Total Hydrocartion Sc 05/12'2002 JWM Chlorobenzene <20 20 Total Hydrocarbon Sc 05/12'2002 JMM Chloroform <20 20 Total Hydrocarbon Sc 05/12(2002 JWW Ethylbenzene <20 20 Total Hydrocarbon Sc 05/12/2002 JMM Hexane <20 20 Total Hydrocarbon Sc 05/12/2002 JMM Isopropylbenzene <20 20 Total Hydrocarbon Sc 05/12/2002 JMM Methylene Chloride <20 20 Total Hydrocarbon Sc 05/12/2002 JMM

Pentane <20 20 Total Hydrocarbon Sc 05/12/2002 JMM

Styrene <20 20 Total Hydrocarbon Sc 05/12/2002 JMM Tetrachloroethene <20 20 Total Hydrocarbon Sc 05/12/2002 JMM

Toluene <20 20 Total Hydrocarbon Sc 05/122002 JMM

Trlchloroethene <20 20 Total Hydrocarbon Sc 05/12/2002 JMM

Xylenes, Total <20 20 Total Hyarocatoon Sc 05/12/2002 JMM

(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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