NYC-WTC_000226865

NYC 9/11 Public Portal Document

PSC Rnalytical Services 6ia9213G67 p. !□ Jan 21 02 09:503

page 3 of 3 Z1JANO2_O931_I3_N7247_RFR

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING • EPA/NVLAP 101262-0 • NY DOH 10903 • NJ DEP 77678 . AIHA ACCREDITATION NO. 100439 . PA DER 06-353 • CT DPH PH-Q238 . NO DENR 599

Projecr: 209291 RESULT UNITS CONCENTRATION UNITS METHOD

ATC-Oni-89M-VOC3 Lab Sample: 1475966 - continued

1 -Heptene < 0.025 ug/sample < 0.27 PPb Methylene chloride'^ 0.073 ug/sample 0.92 PPb Tetrachloroethene (PCE) < 0.025 ug/sample <0.16 PPb Toluene 0.053 ug/sample 0.62 PPb 1,1,1 -Trichloroethane < 0.025 ug/sample < 0.20 PPb Trichloroethene (TCE) 0.039 ug/sample 0.32 PPb Vinylidene chloride < 0.025 ug/sample < 0.28 PPb Vinyl chloride < 0.025 ug/sample < 0.43 PPb Xylenes (total). 0.028 ug/sample 0.28 PPb

ATC-Om-89M-VOC4 Air Volume; 0 L Lab Sample; 1475967

TO-1/TO-2 (TO-17) TOXIC ORGANICS IN AIR TO-1/TO-2 Acrylonitrile < 0.025 ug/sample Allyl chloride < 0.025 ug/sample Benzene < 0.025 ug/sample Bromobenzene < 0.025 ug/sample Carbon tetrachloride < 0.025 ug/sample Chlorobenzene < 0.025 ug/sample Chloroform < 0.025 ug/sample Cumene < 0.025 ug/sample 1,2-Dichloroethane < 0.025 ug/sample 1,2-DichIoropropane < 0.025 ug/sample 1.3-DichIoropropane < 0.025 ug/sample Ethylbenzene < 0.025 ug/sample Ethylene dibromide < 0.025 ug/sample Heptane < 0.025 ug/sample 1-Heptene < 0.025 ug/sample Methylene chloride < 0.025 ug/sample Tetra chloroethene (PCE) < 0.025 ug/sample Toluene < 0.025 ug/sample 1,1,1 -Trichloroethane < 0.025 ug/sample Trichloroethene (TCE) < 0.025 ug/sample Vinylidene chloride < 0.025 ug/sample Vinyl chloride < 0.025 ug/sample Xylenes (total) < 0.025 ug/sample

Final sample concentrations calculated from air volumes supplied on chain of custody. < Indicates less than the limit of quantitation.

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