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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: 10:32:51

Sample: AD23877 Analysis: SO_524 Volatile Organic Compounds-Reference Rec Units: ug Started: 10/04/01 11:50 Ended: 10/04/01 11:50 Analyst: WB Result source: calculation Page: 1

Component Name t Viol Result MDL 1 Surr - 1,2-DICHLOROETHANE-D 5.2' .5 2_ Surr - 4-BROMOFLUOROBENZE 5. .5 3 Dichlorodifluoromethane 0 .5 4 Chloromethane 100 5 1 5 'Vinyl chloride 95 .5 6 Bromomethane 90 .5 7 Chloroethane 92.5 .5 8 Trichlorofluoromethane 95 .5 9 ^ 1,1-Dichloroethene .90 .5 10 Methylene Chloride 4--- 87.5 .5 11 iMethyl tert butyl ether 132.5 1.0 12 trans-1,2-dichloroethene _ 100 .5 13 11,1-dichloroethane 97.5 .5 14 .2-butanone (MEK) 72.5 2.0 15 .2,2-dichioropropane 125 .5 16 c15-1,2-dichloroethene 105 .5 17 Chloroform .95 5 18 Bromochloromethane 92.5 .5 19 1,2-dichloroethane 95 .5 20 'Surr -TOLUENE-D8 - .5 21 1,1,1-trichloroethane 105 .5 22_1,1-dichloropropene 102.5 .5 23 Carbon tetrachloride 97.5 .5 24 Benzene 95 .5 25 Trichloroethene _ 97.5 .5 26 1,2-dichloropropane 95 .5 27 Dibromomethane _ 92.5 .5 28 Bromodichloromethane 97.5 .5 29 Methyl iso-butyl ketone 105 - 1.0 30 cis-1,3-dichloropropene '125 .5 31 Toluene .92.5 .5 32 itrans-1,3-dichloropropene 135 -' .5 33_ 1,1,2-trichloroethane 97.5 .5 34 Tetrachloroethene 95 .5 35 1,3-dichloropropane 97.5 .5 36 Dibromochloromethane 97.5 2.0 37 Chlorobenzene 90 .5 38 1,1,1,2-tetrachloroethane 100 .5 39 Ethylbenzene 97.5 .5 40 P & M-xylene 95 .5 41^ 0-xylene _ 102.5 .5 42_Styrene 105 .5 43_1,1,2,2-tetrachloroethane 95 .5 44 Bromoform 102.5 2.0 45- Isopropylbenzene 100 .5 -- 46 1,2,3-trichloropropane 95 .5 47 N-propylbenzene 92.5 5

NYC-WTC 000000366

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NYC-WTC_000000366Source: NYC Law Department, mirrored locally

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