NYC-WTC_000199112

NYC 9/11 Public Portal Document

Dec 20 01 Dl:54p PSd Rnalytical Services G109219GG7 p. 14

page 3 of 6 20DEC01_l245_I3_M26i_1FR I HMM INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING « EPA/NVLAP 1012S2-0 • NY DOH/NELAC 10903 . NJ DEP 77020 • AIHA ACCREDITATION NO 100439 . PA DEP 06-353 . CT DPH PH-0238 . NC DENR 599 ANALYTICAL SERVICES Client; ATC Associates Project: 208989 RESULT UNITS CONCENTRATION UNITS METHOD

ATC-12n-234M-VOC4 Lab Sample: 1474469 - continued

Methylene chloride < 0.020 mg/sample < 0-048 ppm 1005 Hexane < 0.020 mgfsample < 0.047 ppm 1500 Chloroform < 0.020 mg/sample < 0.034 ppm 1003 Methyl chloroform s 0.020 mg/sample < 0.030 ppm 1003 total other A Hydrocarbons < 0.020 mg/sample < 0.047 ppm 1500 Benzene 0.020 mg/sample < 0.052 ppm 1501 1,2-Dichloroethane < 0.020 mg/sample < 0.041 ppm 1003 Trichloroethylene < 0.020 mg/sample < 0.031 ppm 1022 Toluene < 0.020 mg/sample < 0.044 ppm 1 501 PCE (Tetrachloroethene) < 0.020 mg/sample < 0.024 ppm 1003 Chlorobenzene < 0.020 mg/sample < 0.036 ppm 1003 Ethylbenzene < 0.020 mg/sample < 0.038 ppm 1501 Styrene < 0.020 mg/sample < 0.039 ppm 1 501 Cumene (Isopropylbenzene) < 0.020 mg/sample < 0.034 ppm 1501 Xylenes, Total < 0.020 mg/sample < 0.038 ppm 1501 total other B Hydrocarbons 0.069 mg/sample 0.152 ppm 1501

ATC-12n-234M-VOC5 Air Volume: 1 20.0 L * A Gx'ArcMf Lab Sample: 1474470

Pentane < 0.020 mg/sample < 0.056 ppm 1500 Acetone < 0.020 mg/sample < 0.070 ppm 1 300 Methylene chloride < 0.020 mg/sample < 0.048 ppm 1005 Hexane < 0.020 mg/sample < 0,047 ppm 1500 Chloroform < 0.020 mg/sample < 0.034 ppm 1003 Methyl chloroform < 0.020 mg/sample < 0.031 ppm 1003 total other A Hydrocarbons < 0.020 mg/sample < 0.047 ppm 1 500 Benzene < 0.020 mg/sample < 0.052 ppm 1501 1,2-Dichloroethane < 0.020 mg/sample < 0.041 ppm 1003 Trichloroethylene < 0.020 mg/sample < 0.031 ppm 1022 Toluene < 0.020 mg/sample < 0.044 ppm 1501 PCE (Tetrachloroelhene) < 0.020 mg/sample < 0.025 ppm 1003 Chlorobenzene < 0.020 mg/sample < 0.036 ppm 1003 Ethylbenzene < 0.020 mg/sample < 0.038 ppm 1501 Styrene < 0.020 mg/sample < 0.039 ppm 1 501 Cumene (Isopropylbenzene) < 0.020 mg/sample < 0.034 ppm 1 501 Xylenes, Total < 0.020 mg/sample < 0.038 ppm 1501 total other B Hydrocarbons < 0.020 mg/sample < 0.044 ppm 1501

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NYC-WTC_000199114