NYC-WTC_000199118

NYC 9/11 Public Portal Document

- Dec 14 01 06:OOp PSC Rnalytical 9ervices 6109219667 P-2

page 1 of 6 14DEC01_1730_13_N1261_R FR

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING • EPA/NVLAP 101262-0 • NY DOH/NELAC 10903 ■ NJ DEP 77020 - AIHA ACCREDITATION NO. 100439 • PA DEP 06-353 • CT DPH PH-0238 • NC DENR 599 ANALYTICAL SERVICES

ANALYTICALREPORT

Client: ATC Associates Project: 208877 Received: 11-DEC-01 Report to: James Cohn Reported: 14-DEC-01 ATC Associates 104 East 25th Street 10th Floor New York NY 10010-2917

f J, T-SYM Project Description: 191 25-^24:6^ HCs ASiB Analysis

Sampled: 09-DEC-01 By: T/W

RESULT UNITS CONCENTRATION UNITS METHOD

ATC-1209-234M-C1 Air Volume: 120 L Lab Sample: 1474047

Pentane < 0.020 mg/sample < 0.056 ppm 1500 Acetone < 0.020 mg/sample < 0.070 ppm 1300 Methylene chloride < 0.020 mg/sample < 0.048 ppm 1005 Hexane < 0.020 mg/sample < 0.047 ppm 1600 Chloroform c 0.020 mg/sample < 0.034 ppm 1003 Methyl chlorolorm < 0.020 mg/sample < 0.031 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 c 0.031 ppm 1022 Toluene < 0.020 mg/sample c 0.044 ppm 1 501 PCE (Tetrachloroethene) < 0.020 mg/sample < 0.025 ppm 1003 Chlorobenzene < 0.020 mg/sample c 0.036 ppm 1003 Ethylbenzene < 0.020 mg/sample < 0.038 ppm 1 501 Styrene < 0.020 mg/sample < 0.039 ppm 1501 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

ATC-1209-234M-C2 Air Volume: 1 20 L Lab Sample: 1474048

Pentane < 0.020 mg/sample < 0.056 ppm 1500 Acetone < 0.020 mg/sample < 0.070 ppm 1300 Methylene chloride < 0.020 mg/sample < 0.048 ppm 1005 Hexane < 0.020 mg/sample < 0.047 ppm 1500

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NYC-WTC_000199118