OSHA aromatic hydrocarbon monitoring chain of custody, Oct 2001

NYC 9/11 Public Portal Document

Analytical Results for ATC ASSOCIATES WorkOrder: RG1110135 Client Reference: WTC, 15-17494-0139, RusE IH / Analyte Conccntratinn Limit of Test Date Analyzed Detection Method /Analyst (ug): (mg/m’) : <p’pm) (ig)

(1 Client ID: FA-TU 10, ATC 1107 Lab IO: -06A Date Sampled: 11/7/01 Matrix: Charcoal AirVoI.(L); 45.15

Benzene <20 <0.44 <0.14 20 VOLATILE AROM 11/08/2001 JMM Ethylbenzene <20 <0.44 <0.10 20 VOLATILE ARO M 11 /08/2001 JMM Toluene <20 <0.44 <0.12 20 VOLATILE AROM 11/08/2001 JMM / Xylenes. Total <20 <0.44 <0.10 20 VOLATILE AROM 11/08/2001 JMM

Client ID; KAI 1, ATC 1107 C- Lab ID: -OTA Date Sampled: 11/7/01 Matrix: Charcoal Air Vol.(L): 49.04

Benzene <20 <0.41 <0.13 20 VOLATILE AROW •’1/08/2001 JMM Ethylbenzene <20 <0.41 <0.094 20 VOLATILE AROM 11/08/2001 JMM Toluene <20 <0.41 <0.11 20 VOLATILE AROM 11/08/2001 JMM Xylenes, Total ' <20 <0.41 <0.094 20 VOLATILE AROM 11/08/2001 JMM

Client ID: ATC 1107 FIELD/BLANK Lx^'%ab ID: -08A Date Sampled: Matrix; Charcoal AirVol.(L): NA

Benzene <20 20 VOLATILE AROM 11/08/2001 JMM Ethylbenzene <20 20 VOLATILE AROM 11/08/2001 JMM Toluene <20 20 VOLATILE AROM 11/08/2001 JMM Xylenes. Total <20 20 VOLATILE AROM 11/08/2001 JMM (a) Analysis indicates possible breakthrough; back section result is greater than % of the front section result.

General Noles: <: Less than the indicated limit of detection CLOD). Information not available or not applicable. Back sections were checked and showed no significant breakthrough.

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CONFIDENTIAL, CITY_21MC100_007916513 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

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