NYC-WTC_000199112

NYC 9/11 Public Portal Document

Dec 20 01 ai:53p PSC Analytical Services 6109219667 p. 12

page 1 of 6 2OOECO1_1245_13_M1261_1FR

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING . EPA/NVLAP 101262-0 • NY DOH/NELAC 10903 • NJ DEP 7702D . AIHA ACCREDITATION NO. 100439 . PA DEP 06-353 . CT DPH PH-C238 . NO DENR 599 ANALYTICAL SERVICES

ANALYTICAL REPORT

Client: ATC Associates Project: 208989 Received: 14-DEC-01 Report to: James Cohn Reported: 20-DEC-01 ATC Associates 104 East 25th Street 1 0th Floor New York NY 10010-2917

Project Description: 1912-0279 / VOCs A-i-B

Sampled: 11-DEC-01 By: WK

RESULT UNITS CONCENTRATION UNITS METHOD

ATC-1211-234M-VOC1 Air Volume: 120.2 L Lab Sample: 1474466

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 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 I,2-Dichloro6fhane c 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 (Tetrachloroethene) < 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 1501 Cumene (Isopropylbenzene) < 0.020 mg/sample < 0.034 ppm 1501 Xylenes, Total < 0.020 mg/sample < 0.03S ppm 1501 total other B Hydrocarbons < 0.020 mg/sample < 0.044 ppm 1501

ATC-121 I-234M-VOC2 Air Volume: 120.0 L (A. 11^ Lab Sample: 1474467

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

4418 POTTSVILLE PIKE, READING, PENNSYLVANIA 19605 610-921-8833 FAX 610-921-9667

CITY_21MC100_003031526

NYC-WTC_000199112