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VOC surrogate recovery data, Site 524, Sept-Oct 2001

Machine-extracted title · confidence 100%

Table of VOC surrogate recovery percentages for sample AD23606 from Site 524 processed in late September and early October 2001.

NYC-WTC_000000362–000000369

Folder label: “524 10/1 - 10/10/01

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NYC 9/11 Public Portal Document

User: vannelli, Sandy Westchester Dept. of Labs & Research Date: 10/12/2001 Time: 10:38:10

Sample: AD24398 Analysis: SQ_524 Volatile Organic Compounds-Reference Rec Units: ug Started: 10/05/01 15:08 Ended: 10/09/01 15:08 Analyst: WB Result source: manual entry Page: 1

_Componetlt Name I viol Result MpL Surr - 1,2-DICHLOROETHANE-D 2 Surr - 4-BROMOFLUOROBENZEI 5.1 .5 3 ,-Dichlorodifluoromethane .130 .5 4 Chloromethane '95 .5 5 JVinyl chloride 90 .5 6 Bromomethane 92.5 .5 7 Chloroethane 97.5 .5 8 Trichlorofluoromethane 100 .5 g_ 1,1-Dichloroethene 97.5 .5 30 Methylene Chloride 95 .5 11 Methyl tert butyl ether 140 11.0 12 trans-1,2-dichloroethene 102.5 I.5 13 1,1-dichloroethane 100 5 14_,2-butanone (MEIU 67.5 2.0 15 .2,2-dichloropropane 130 .5 -- .5 --

16 _cis-1,2-dichloroethene 102.5 17 ; Chloroform ;.5 - -- -- - 18 Bromochioromethane 1 95 5 19 .1,2-dichloroethane 97.5 5 20 Surr - TOLUENE-D8 4.9 21 1,1,1-trichloroethane 112.5 5 22 1,1-dichloropropane 110 t.5 23 Carbon tetrachloride 105 .5 24 Benzene _ 102.5 .5 25 Trichloroethene 105 .5 26 1,2-dichloropropane X102.5 .5 27`Dibromomethane 92.5 .5 28~_Bromodichloromethane 105 29 Methyl iso-butyl ketone jib0 1.0 30 cis-1,3-dichloropropene 132.5_ .5 31 Toluene 97.5 5 32 trans-1,3-dichloropropene -142.5 f .5 33 1,1,2-trichloroethane 100 .5 34 'TetrachIoroethene 95 .5 351,3-dichloropropane 102.5 5 36 Dibromochloromethane 102.5 2.0 37_.Chlorobenzene 192.5 5 38 1,1,1,2-tetrachioroethane 105 5 39 Ethyl benzene 100 5 40 P & M-xylene 98.75 .5 41 O-xylene 110 .5 42 Styrene 110 .5 43 1,1,2,2-tetrachioroethane 100 '.5 44 Bromoform X100 2.0 45 ,isopropylbenzene 100 5 46 11,2,3-trichloropropane 92.5 i.5 47 N-propylbenzene I95 1.5

NYC-WTC 000000368

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NYC-WTC_000000368Source: NYC Law Department, mirrored locally

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