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Water analysis report, Hillview samples, Oct 2001

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Laboratory report detailing chemical analysis results for silver, aluminum, and arsenic in drinking water samples collected from Hillview.

NYC-WTC_000027649–000027697

Folder label: “24694

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NYC 9/11 Public Portal Document

REPORT OF ANALYSIS Westchester County Department of Labs and Research 2 Dana Road Valhalla, New York

Agency: New York City DEP DWQC Sample QUEENS Distribution Laboratory 96-05 Horace Harding Ex. Corona N.Y. 11368 Sample 41550 Dr. Ian Hurley ID of Source: Received KM Collection 10/9/2001 AT 8:10:00 Bottle c9735,k6774,6986,0261,9831,98 Submitted 10/10/2001 AT Collected By: TSUI Sample Type: POT_DW Comment: PWS No.: Source Code: Type Descriptor: Sample chilled on arrival? : YES Report

Sample No. AD24699 Method Test Description Results Units MDL Analyzed on Validator 524.2 SEC-butylbenzene <MDL ug/L .5 10/10/2001 SV 524.2 Styrene <MDL ug/L .5 10/10/2001 SV 524.2 TERT-butylbenzene <MDL ug/L .5 10/10/2001 SV 524.2 Tetrachloroethene <MDL ug/L .5 10/10/2001 SV 524.2 Toluene <MDL ug/L .5 10/10/2001 SV 524.2 trans-1,2-dichloroethene <MDL ug/L .5 10/10/2001 SV 524.2 trans-1,3-dichloropropene <MDL ug/L .5 10/10/2001 SV 524.2 Trichloroethene <MDL ug/L .5 10/10/2001 SV 524.2 Trichlorofluoromethane <MDL ug/L .5 10/10/2001 SV 524.2 Vinyl chloride <MDL ug/L .5 10/10/2001 SV DICHLOROACETONITRILE FOUND AS A TENTATIVELY IDENTIFIED COMPOUND BY METHOD 524.2. THE APPROXIMATE CONCENTRATION IS 0.04 ug/L. Organic Chemicals - 525.2 2,4-Dinitrotoluene <MDL ug/L 2.0 11/19/2001 DLV 2,6-Dinitrotoluene < MDL ug/L 2.0 11/19/2001 DLV 4,4-DDE <MDL ug/L 0.80 11/19/2001 DLV Acetochlor <MDL ug/L 2.0 11/19/2001 DLV Alachlor <MDL ug/L 0.20 11/19/2001 DLV Atrazine <MDL ug/L 0.10 11/19/2001 DLV Benzo(a)pyrene <MDL ug/L 0.20 11/19/2001 DLV bis(2-Ethylhexyl)adipate <MDL ug/L 0.60 11/19/2001 DLV bis(2-Ethylhexyl)phthalate 0.85 ug/L 0.60 11/19/2001 DLV

Approved Pam Dilsizian QA Officer Date Approved: 11/27/2001

Environmental Laboratories emailed Original 11/27/2001

NYS ELAP # 10108 Page 6 of 7

NYC-WTC_000027689

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NYC-WTC_000027689Source: NYC Law Department, mirrored locally

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