WTC sample cover sheet, Dec 28 2001

NYC 9/11 Public Portal Document

User: Huhn, William Westchester Dept. of Labs & Research Date: 12/31/2001 Time: 11:46:05 Sample: AD31466 Analysis: $RE524 Reference recovery for 524 Units: ug Started: 12/28/01 00:01 Ended: 12/28/01 00:01 Analyst: BH Result source: m:\instruments\206\rrfiles\1228r40.rr Page: 1

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v 1,2-DICHLOROETHANE-D4 5.3 4-BROMOFLUOROBENZENE 6.7 DICHLORODIFLUOROMETHAN 39 .5 :••` ':' CHLOROMETHANE 64 .5 VINYL CHLORIDE 52 .5 BROMOMETHANE 62 .5 >>:' CHLOROETHANE 61 .5 TRICHLOROFLUOROMETHAN 46 .5 # ACETONE 39 .5 1,1-DICHLOROETHENE 48 .5 I METHYLENE CHLORIDE 47 .5 METHYL TERT BUTYL ETHER 36 1 3 ? TRANS-1,2-DICHLOROETHEN 47 .5 ` :'•. 1,1-DICHLOROETHANE 46 .5 :'•z;fi` 2-BUTANONE (MEK) 33 .5 2,2-DICHLOROPROPANE 49 .5 CIS-1,2-DICHLOROETHENE 46 .5 1. CHLOROFORM 49 .5 BROMOCHLOROMETHANE 44 .5 1,2-DICHLOROETHANE 45 .5 TOLUENE-D8 4.4 '<:` 1,1,1-TRICHLOROETHANE 43 .5 1:.1,1 DICHLOROPROPENE 41 .5 % CARBON TETRACHLORIDE 46 .5 ..•. BENZENE 39 .5 TRICHLOROETHENE 40 .5 1,2 DICHLOROPROPANE 37 .5 DIBROMOMETHANE 42 .5 BROMODICHLOROMETHANE 42 .5 2-CHLOROETHYL VINYL ETHE 30 .5 METHYL ISO-BUTYL KETONE 28 1 CIS-1,3 DICHLOROPROPENE 40 .5 .°~ TOLUENE 40 .5 TRANS-1,3-DICHLOROPROPE 41 .5 1,1,2-TRICHLOROETHANE 40 .5 TETRACHLOROETHENE 47 .5 '? ;•, 1,3-DICHLOROPROPANE 42 .5 « DIBROMOCHLOROMETHANE 46 2 1,2-DIBROMOETHANE 42 .5 CHLOROBENZENE 44 .5 1,1,1,2-TETRACHLOROETHA 47 .5 2-HEXANONE 36 .5 ETHYLBENZENE 46 .5 44• P & M-XYLENE 88 .5 :,• O XYLENE 46 .5 ? STYRENE 45 .5 4 1,1,2,2-TETRACHLOROETHA 51 .5 BROMOFORM 41 2

NYC-WTC 000002752