NYC-WTC_000226999

NYC 9/11 Public Portal Document

3-DEC-2OO1 17:33 Philip Aiialytlcal Services Page 1/3

TO: James Cohn FROM: Philip Analytical COMPANY: ATC Associates FAX#: (610)921-9667 TOTAL PAGES: 3 PHONE#: (610)921-8833

Project: 208610 19125-0246/ A & B HC Scan

-^0 0/ 1473044 VOC-01 sampled: 28-NOV-Ol by: TN received: 29-NOV-Ol Pentane < 0.020 mg/sample 1500 Concentration < 0.070 ppm Acetone < 0.020 mg/sample 1300 Concentrat ion < 0.087 ppm Methylene chloride < 0.020 mg/sample 1005 Concentration < 0.060 ppm Hexane < 0.020 mg/sample 1500 Concentrat ion < 0.059 ppm Chloroform < 0.020 mg/sample 1003 Concentrat ion < 0.043 ppm Methyl chloroform < 0.020 mg/sample 1003 Concentrat ion < 0.038 ppm total other A Hydrocarbons < 0.020 mg/sample 1500 Concentrat ion < 0.059 ppm Benzene < 0.020 mg/sample 1501 Concentrat ion < 0.065 ppm 1,2-Dichloroethane < 0.020 mg/sample 1003 Concentrat ion < 0.051 ppm Tr i c hloroethy1ene < 0.020 mg/sample 1022 Concentrat ion < 0.039 ppm Toluene < 0.020 mg/sample 1501 Concentrat ion < 0.055 ppm PCE (Tetrachloroethene) < 0.020 mg/sample 1003 Concentration < 0.031 ppm Chlorobenzene < 0.020 mg/sample 1003 Concentrat ion < 0.045 ppm EthyIbenzene < 0.020 mg/sample 1501 Concentration < 0.048 ppm Styrene < 0.020 mg/sample 1501 Concentrat ion < 0.049 ppm Cumene (IsopropyIbenzene ) < 0.020 mg/sample 1501 Concentration < 0.042 ppm Xylenes, Total < 0.020 mg/sample 1501 Concentrat ion < 0.048 ppm total other B Hydrocarbons < 0.020 mg/sample 1501 Concentration < 0.055 ppm

1473045 VOC-02 sampled: 28-NOV-Ol by: TN received: 29-NOV-Ol Pentane < 0.020 mg/sample 1500 Concentrat ion < 0.070 ppm Acetone < 0.020 mg/sample 1300 Concentration < 0.087 ppm Methylene chloride < 0.020 mg/sample 1005 Concentrat ion < 0.060 ppm Hexane < 0.020 mg/sample 1500 . Concentrat ion < 0.059 ppm

CITY_21MC100_002897075

NYC-WTC_000226999