VOC analytical results, M833 project, April 2002

NYC 9/11 Public Portal Document

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING •EPA^JVLAP 101262-0 • NY DOHINEIAC10903 •NJDEPPA020 •AIHA ACCREDITATION NO. 100439 • PA DEP 06-353 •CT DPHPB-Q233 •NCDENR 599

ANALYTICAL SERVICES Analytical Results for ATC Associates WorkOrder: R02040879 Client Reference: 19125-0291, VOC

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ng) : (mg/m’) ; (ppm) Ois) Client ID; VOC4 ATC-042O-MS33 Lab ID: -04A Date Sampled: 4/20/02 Matrix: Charcoal AirVoL(L): 120 1.1,1-TricMoroe thane <20 <0.17 <0.031 20 Total Hydrocarbon Sc 04/26/2002 JMM 1.2-Dichloroethane <20 <0.17 <0.041 20 Total Hydrocarbon Sc 04/26/2002 JMM A Hydrocarbons, Total <20 <0.17 <0.047 20 Total Hydrocarbon Sc 04/26/2002 JMM Acetone <20 <0.17 <0.070 20 Total Hydrocarbon Sc 04/26/2002 JMM B Hydrocarbons, Total <20 <0.17 <0.044 20 Total Hydrocarbon Sc 04/26/2002 JMM Benzene <20 <0.17 <0.052 20 Total Hydrocarbon Sc 04/26/20C2 JMM Chlorobenzene <20 <0.17 <0.036 20 Total Hydrocarbon Sc 04/26/2002 JMM Chloroform <20 <0.17 <0.034 20 Total Hydrocarbon Sc 04/26/2002 JMM Ethylbenzene <20 <0.17 <0.038 20 Total Hydrocarbon Sc 04/26/2002 JMM Hexane <20 <0.17 <0.047 20 Total Hydrocarbon Sc 04/26/2002 JMM Isopropylbenzene <20 <0.17 <0.034 20 Total Hydrocarbon Sc 04/26/2002 JMM Methylene Chloride <20 <0.17 <0.048 20 Total Hydrocarbon Sc 04/26/2002 JMM Pentane <20 <0.17 <0.056 20 Total Hydrocarbon Sc 04/26/2002 JMM Styrene <20 <0.17 <0.039 20 Total Hydrocarbon Sc 04/26/2002 JMM Tetrachloroethene <20 <0.17 <0.025 20 Total Hydrocarbon Sc 04/26/2002 JMM T oluene <20 <0.17 <0.044 20 Total Hydrocarbon Sc 04/26/2002 JMM Trichloroettiene <20 <0.17 <0.031 20 Total Hydrocarbon Sc 04/26/2002 JMM Xylenes, Total <20 <0.17 <0.038 20 Total Hydrocarbon Sc 04/26/2002 JMM

Page 4 of 5

CONFIDENTIAL, CITY_21MC100_003463138

SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000180096