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GCMS sample analysis results, AE11907, June 4, 2002

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Laboratory report presenting analytical results for target compounds and surrogate recovery data for water sample AE11907.

NYC-WTC_000012989–000013013

Folder label: “GCMS X 5-21-02 A 5-22-02

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NYC 9/11 Public Portal Document Tentatively Identified Compound (LSC) summary Operator ID: Mclean Date Acquired: 23 May 2002 12:25 am Data File: C:\MSDCHEM\l\DATA\052202\11907.D Name: 5/21 ad Mise: Method: C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title: 508 Modified GC/MS scan Library Searched: C:\DATABASE\NIST98.L

--Internal Standard-- TIC Top Hit name RT EstConc Units Response # RT. Resp Cone Methylene Chloride 3.72 2.2 ug/L 1287070 1 9.90 23225900 40.0 Acetic acid, chlo... 3.74 1.7 ug/L 959239 1 9.90 23225900 40.0 Butanenitrile, 4-... 3.78 2.1 ug/L 1224970 1 9.90 23225900 40.0 4-Chlorobuten-3-yne 3.86 1.4 ug/L 788437 1 9.90 23225900 40.0 Ethyl Chloride 3.91 0.4 ug/L 239822 1 9.90 23225900 40.0 Chlorine 3.93 0.9 ug/L 524056 1 9.90 23225900 40.0 2-Imidazolidinone 3.98 0.8 ug/L 477760 1 9.90 23225900 40.0 Toluene 4.27 0.5 ug/L 283402 1 9.90 23225900 40.0 4,7-Dimethyl-l,10. .. 5.38 0.2 ug/L 128472 1 9.90 23225900 40.0 2-Pentanone, 4-hy... 5.93 11.9 ug/L 6937990 1 9.90 23225900 40.0 Cyclopentasiloxan... 12.37 1.4 ug/L 1063780 2 13.39 31357900 40.0 2,4-Diamino-6-(hy... 22.54 0.2 ug/L 218557 4 22.91 35464200 40.0 Anthracene-dlO- 23.07 0.2 ug/L 200626 4 22.91 35464200 40.0 Trisiloxane, 1,1,... 35.37 0.3 ug/L 120766 6 34.66 16134300 40.0 l-Aza-2-sila-5-bo... 36.45 0.4 ug/L 171942 6 34.66 16134300 40.0 2,6-Dimethyl-3,4-... 37.72 0.4 ug/L 168766 6 34.66 16134300 40.0

11907.D 052202.M Tue May 28 12:14:39 2002 Page 20

NYC-WTC_000013013

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NYC-WTC_000013013Source: NYC Law Department, mirrored locally

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