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Lab blank analysis results, sample AD25601, Nov 2001

Machine-extracted title · confidence 90%

Laboratory report of a lab blank analysis for sample AD25601 conducted November 13, 2001 to verify analytical cleanliness.

NYC-WTC_000029539–000029542

Folder label: “525 X 10/29/01 AN 11/13 - 11/14/01

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2 Z K K o o co 3 _s

O O 1 C O O O Quantitation Report Quanfile: LBB1113 Quan Entr ies: 14 O o' O N Comment: BOHLK: METHOD 525; IMST 204; 11/13/01; LB O U (O — co Sorted via: Entry Number 1 (S) = Standard 0 r O o Cal Name of Compound S Scani R Time Me Calc Amt(A) Units o C 3 CD 1 acenaphthene d-10(IS) 1 737 12:17 BV 5.000 UG/L 3

2 phenanthrene d-10 (IS) I 1014 16:54 BV 5.000 UG/L 3 chrysene d-12(IS) I 1360 22:48 BB 5.000 UG/L 4 p-terphenyl d-14(IS) I 1250 20:50 BB 5.000 UG/L 5 acenaphthene d-10(SURR A 737 12:17 BV 4.199 UG/L 6 phenanthrene d-10(SURR A 1014 16:54 BV 5.285 UG/L 7 chrysene d-12 (SURR) A 1360 22:40 BB 7.016 UG/L 8 1,3-d imethy1-2-n itrobe A 478 7:58 BV 4.781 UG/L 9 triphenyl phosphate (S A 1325 22:05 BB 4.963 UG/L 10 perylene d-12 (SURR) A 1617 26:57 BB 3.937 UG/L 17 b is (2-ethy Ihexy l phtha A 1378 22:58 V 0.200 UG/L 20 2,6-d in itrotoluene A 71? 11:57 BB 0.709 UG/L 21 2,4-d in itrotoluene A 784 13:04 BB 0.019 UG/L 28 4,4‘-dde A 1248 20:48 MM 0.009 UG/L

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NYC-WTC_000029542Source: NYC Law Department, mirrored locally

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NYC-WTC_000029459 · Box DEP Box 20

Gas chromatography-mass spectrometry analysis results for sample AD25458 including Hexachlorobenzene and other compounds from November 2001.

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