NYC-WTC_000196502

NYC 9/11 Public Portal Document

Feb 27 02 10:09a PSC Analytical Services Bia9219GG7 p. 14

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING ■ EP/VNVLAP 1D1262-0 • NY DOPWIEWC 10903 • NJ DEP PA02D • AIHA ACCREDITATION NO, 100439 ■ PA DEP 08-363 ■ CT DPH PH-0238 ■NC DENR 599

ANALYTICAL SERVICES Analytical Results for ATC Associates Workorder; R02020731 Client Reference: 19125-0279

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug) ("’g/ra") I (ppm) (ug)

Client 1D: VOC4 ATC-0219-234M Lab ID: -04A Date Sampled: 2/19/02 Matrix: Charcoal AirVol.{L); 120 1.1,1-T riohloroethane <20 <0.17 <0.031 20 Total Hydrocarbon Sc 02/24/2002 JMM 1,2-Dichloroethane <20 <0.17 <0.041 20 Total Hydrocarbon Sc 02/24/2002 JMM A Hydrocarbons, Total <20 <0.17 <0.047 20 Total Hydrocarbon Sc 02/24/2002 JMM Acetone <20 <0.17 <0.070 20 Total Hydrocarbon Sc 02/24/2002 JMM B Hydrocarbons, Total <20 <0.17 <0.044 20 Total Hydrocarbon Sc 02/24/2002 JMM Benzene <20 <0.17 <0.052 20 Total Hydrocarbon Sc 02/24/2002 JMM Chlorobenzene <20 <0.17 <0.036 20 Total Hydrocarbon Sc 02/24/2002 JMM Chloroform <20 <0.17 <0.034 20 Total Hydrocarbon Sc 02/24/2002 JMM Ethylbenzene <20 <0.17 <0.033 20 Total Hydrocarbon Sc 02/24/2002 JMM Hexane <20 <0.17 <0.047 20 Total Hydrocarbon Sc 02/24/2002 JMM Isopropylbenzene <20 <0.17 <0.034 20 Total Hydrocarbon Sc 02/24/2002 JMM Methylene Chloride <20 <0.17 <0.048 20 Total Hydrocarbon Sc 02/24/2002 JMM Pentane <20 <0.17 <0.056 20 Total Hydrocarbon Sc 02/24/2002 JMM Styrene <20 <0.17 <0.039 20 Total Hydrocarbon Sc 02/24/2002 JMM Tetrachloroethene <20 <0.17 <0.025 20 Total Hydrocarbon Sc 02/24/2002 JMM Toluene <20 <0.17 <0.044 20 Total Hydrocarbon Sc 02/24/2002 JMM T richloroethene <20 <0.17 <0.031 20 Total Hydrocarbon Sc 02/24/2002 JMM Xylenes, Total <20 <0.17 <0.038 20 Total Hydrocarbon Sc 02/24/2002 JMM

Page 4 of 5

CITY_21MC100_003057148

NYC-WTC_000196505