NYC-WTC_000207975

NYC 9/11 Public Portal Document f-, J.

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING J=»SC •EPWNVLAP 1D1262-0 > NY DOtWELAC 10903 ■ NJ DEP PA020 • AIHA ACCREDITATION NO. 100439 • PA DEP 06-353 •CT0PHPH-023e •NCDENRS99 Analytical Results for ATC Associates

WorkOrder; R020S0824 Client Reference; 19125-034]

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst («g) ; (niE'iti’) : (ppm) (ug)

Client (D: ATC-0823-2M-VOC2 Lab ID: -02A Date Sampled: 8/23/02 Matrix: Charcoal Air Vol.(L): 120

1,1,1-Trichloraethane e20 <0.17 <0.031 20 OSHA7 OS/28/2002 JL3 1.2-Dichloroe thane <20 <0,17 <0.041 20 OSHA7 08/28/2002 JLS A Hydrocarbons. Total <20 <0.17 <0.047 20 OSHA7 OS/28/2002 JLS Acetone <20 <0.17 <0.070 20 OSHA7 03/28/2002 JLS B Hydrocarbons, Total 110 0,92 0.25 20 OSHA7 08/23/2002 JLS Benzene <20 <0.17 <0,052 20 OSHA7 06/28/2002 JLS Chlorobenzene <20 <0.17 <0.036 20 OSMA7 08/28/2002 JLS Chloroform <20 <0.17 <0.034 20 OSHA7 08/28/2002 JLS Ethylbenzene <20 <0.17 <0.038 20 OSHA7 08/28/2002 JLS Hexane <20 <0.17 <0.047 20 OSHA7 00/28/2002 JLS Isopropylbenzene <20 <0,17 <0.034 20 OSHA7 08/28/2002 JLS

Methylene Chloride <20 <0.17 <0,048 20 OSHA7 08/28/2002 ,iLS Pentane <20 <0.17 <0.056 20 OS HA 7 08/28/2002 JLS

Styrene <20 <0.17 <0.039 20 OSHA7 08/28/2002 JLS

Tetra chloroethene <20 <0.17 <0.025 20 OSHA7 08/28/2002 JLS

Toluene <20 <0.17 <0,044 20 OSHA7 08/28/2002 JLS

Tri chloroethene <20 <0,17 <0,031 20 OSHA7 08/28/2002 JLS

Xylenes, Total <20 <0,17 <0,036 20 OSHA7 08/28/2002 JLS

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NYC-WTC_000207976