NYC-WTC_000199112

NYC 9/11 Public Portal Document

Dec 20 01 01;55p PSC Analytical Services G103213GG7 p. 16

page 5 of 6 2ODECO1_1245_13_N1261_1 FR (■Hl INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING • EPA/NVIAP 101262-0 . NY DOH/NELAC 10903 . NJ DEP 77020 . AIHA ACCREDITATION NO. 100439 - PA DEP 06-353 . CT DPH PH-0238 . NC DENR 599 ANALYTIC AL SERVICES Client: ATC Associates Project: 208989 RESULT UNITS CONCENTRATION UNITS METHOD

ATC-1211-234M-VOC8 Air Volume; 121.2 L Lab Sample: 1474473

Pentane < 0.020 mg/sample < 0.056 ppm 1500 Acetone < 0.020 mg/sample < 0.069 ppm 1300 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 < 0.030 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 Trichloroeihylene < 0.020 mgZsample < 0.031 ppm 1022 Toluene < 0.020 mg/sample < 0,044 ppm 1501 PCE (Tetrochloroethene) < 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 1501 Cumene (Isopropylbenzene) < 0.020 mg/sample < 0.034 ppm 1501 Xylenes, Total < 0.020 mg/sample < 0.038 ppm 1501 total other B Hydrocarbons < 0.020 mg/sample < 0.044 ppm 1501

ATC-1211-234IVI-VOC9 Air Volume: 0 L Lab Sample; 1474474

Pentane < 0.020 mgZsample 1500 Acetone < 0.020 rngZsample 1300 Methylene chloride < 0.020 mg/sample 1005 Hexane < 0.020 mgZsample 1500 Chloroform < 0.020 mgZsample 1003 Methyl chloroform < 0.020 mgZsample 1003 total other A Hydrocarbons < 0.020 mgZsample 1500 Benzene < 0.020 mgZsample 1501 1,2-Dichloroethane < 0.020 mgZsample 1003 Trichloroethylene < 0.020 mg/sample 1022 Toluene < 0.020 mg/sample 1501 PCE (Tetrachloroethene) < 0.020 mg/sample 1003 Chlorobenzene < 0.020 mg/sample 1003 Ethylbenzene < 0.020 mg/sample 1501 Styrene < 0.020 mg/sample 1501 Cumene (Isopropylbenzene) < 0.020 mg/sample 1 501 Xylenes, Total < 0.020 mgZsample 1 501

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NYC-WTC_000199116