WTC sample cover sheet, Dec 27 2001

NYC 9/11 Public Portal Document

User: Huhn, William Westchester Dept. of Labs & Research Date: 12/28/2001 Time: 13:53:55 Sample: AD31380 Analysis: $F_524 Volatile Organic Compounds-Field Blank Units: ug Started: 12/28/01 00:05 Ended: 12/28/01 00:05 Analyst: BH Result source: manual entry Page: 1

v::.,v..:uvv :?4::}ti•;.: •.~:.:x.:v.::.::::.:w,v.:..:v : Li. •• :.•.. .........vv.v:.•.•:::.•.•n:::::v:v.. x::v:•:.•.•.~.x::v.•...n ..•. ..... .

`• ` Surr- 1 2 DICHLOROETHANE I 5.7 I .5 Surr4-BROMOFLUOROBENZE 4.0 .5 Dichlorodifluoromethane < MDL .5 ? Chloromethane < MDL .5 Vinyl chloride < MDL .5 Bromomethane < MDL .5 Chloroethane < MDL .5 Trichlorofluoromethane < MDL .5 ' 1,1-Dichloroethene < MDL .5 1,; Methylene Chloride < MDL .5 ` Methyl tert-butyl ether (MTBE) < MDL 1.0 trans-1,2-dichloroethene < MDL '•. 1 1,1-dichloroethane < MDL .5 94 2-butanone (MEK) < MDL 2.0 2,2-dichloropropane < MDL .5 `•E ))'^• cis-1,2-dichloroethene < MDL .5 > ;; )' Chloroform Bromochloromethane < MDL < MDL .5 .5 i l~ 1,2-dichloroethane < MDL .5 ~k' #r Surr_TOLUENE-D8 5.1 .5 1,1,1- trichloroethane < MDL .5 1,1-dichloropropene < MDL .5 Carbon tetrachloride < MDL .5 c`wwx< Benzene < MDL .5 Trichloroethene < MDL .5 h~,d~ ;•`:,` 1,2-dichloropropane < MDL .5 ~z''. Dibromomethane < MDL .5 3 . Bromodichloromethane < MDL .5 Methy iso-butyl ketone (MIRK) < MDL 1.0 ?m ;> cis 1,3-dichloropropene < MDL .5 n\\ti L. Toluene < MDL .5 z trans-1,3-dichloropropene < MDL .5 1,1,2-trichloroethane < MDL .5 Tetrachloroethene < MDL .5 ?s31`i? 1,3-dichloropropane < MDL .5 ; Dibromochloromethane < MDL 2.0 Chlorobenzene < MDL .5 1,1,1,2-tetrachloroethane < MDL .5 Ethylbenzene < MDL .5 ?' ?= P & M-xylene < MDL .5 c s O-xylene < MDL .5 Styrene < MDL .5 ` # 1,1,2,2-tetrachloroethane < MDL .5 za44< Bromoform < MDL 2.0 Isopropylbenzene < MDL .5 1,2,3-trichloropropane < MDL .5 N-propylbenzene < MDL .5 •:`:;•.) •:̀ Bromobenzene < MDL .5

NYC-WTC 000002726