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Water analysis results, Hillview Reservoir, Sept 2001

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Laboratory report detailing metal analysis of water samples collected from Hillview Reservoir on September 21, 2001.

NYC-WTC_000026359–000026400

Folder label: “23258”

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NYC 9/11 Public Portal Document

Westchester County 9/27/01 10:43 PAGE 27/622 RightFAX

REPORT OF ANALYSIS Westchester County Department of Labs and Research 2 Dana Road Valhalla, New York 10595

Agency: New York City DEP DWQC Sample Location: HILLVIEW RESERVOIR Distribution Laboratory 96-05 Horace Harding Ex. 6th Corona N.Y. 11368 Sample Point: BX58 Dr. Ian Hurley ID of Sou roe: Received By: EP Collection Date: 9/21/2001 AT 9:25:00 A Bottle No.: 156,8510,85,200,9143,3183,7794, Submitted On: 9/21/2001 AT 10:50:00 A Collected By: KAGZVTIGLAO Sample Type: POT_DW Comment PWSNo.: Source Code: Type Descriptor: Chilled on arrival?: yes Report To:

Sample No. AD23259 Method Test Descriptian Results Units MDL Analyzed on Validator 524.2 Chloroethane < MDL ug/L .5 9/24/2020 SV 524.2 Chloromethane < MDL ug/L .5 9/24/2020 SV 524.2 cis-1,2-dichlorethene < MDL ug/L .5 9/24/2020 SV 524.2 cis-1,3-dichloropropene < MDL ug/L .5 9/24/2020 SV 524.2 Dibromomethane < MDL ug/L .5 9/24/2020 SV 524.2 Dichlorodifluoromethane < MDL ug/L .5 9/24/2020 SV 524.2 Ethylbenzene < MDL ug/L .5 9/24/2020 SV 524.2 Hexachlorobutadiene <MDL ug/L .5 9/24/2020 SV 524.2 Isopropylbenzene < MDL ug/L .5 9/24/2020 SV 524.2 Methyl Iso-butyl ketone (MIBK) < MDL ug/L 1.0 9/24/2020 SV 524.2 Methyl tert-butyl ether (MTBE) < MDL ug/L 1.0 9/24/2020 SV 524.2 Methylene Chloride < MDL ug/L .5 9/24/2020 SV 524.2 N-butylbenzene <MDL ug/L .5 9/24/2020 SV 524.2 N-propylbenzene <MDL ug/L .5 9/24/2020 SV 524.2 Naphthalene <MDL ug/L .5 9/24/2020 SV 524.2 O-xylene <MDL ug/L .5 9/24/2020 SV 524.2 P & M-xylene <MDL ug/L .5 9/24/2020 SV 524.2 P-isopropyltoluene <MDL ug/L .5 9/24/2020 SV 524.2 SEC-butylbenzene < MDL ug/L .5 9/24/2020 SV 524.2 Styrene < MDL ug/L .5 9/24/2020 SV 524.2 TERT-butylbenzene < MDL ug/L .5 9/24/2020 SV

Approved By: Date Approved: 1/1/1981

Environmental Laboratories Original 9/27/2001 NYS ELAP 018108 (914) 231-1820 Page 5 of 6

NYC-WTC_000026369

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NYC-WTC_000026369Source: NYC Law Department, mirrored locally

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