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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 22, 2001.

NYC-WTC_000026452–000026511

Folder label: “23318

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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

@goncy:Now York City DEP DWQC Sample HILLVIEW RESERVOIR Distribution Laboratory 96-05 Horace Harding Ex. Corona N.Y. 11368 Sample BX3 Dr. Ian Hurley ID of Source: Received BH Collection 9/23/2001 AT 9:41:00 Bottle 0419,8672,8671,8660,8663,0047, Submitted 9/23/2001 AT 5:55:00 Collected By: YACOUB Sample Type: POT_DW Comment: PWSNo.: Source Code: Type Descriptor Sample chilled on arrival?: yes Report

Sample No. AD23325 Method Test Description Results Units MDL Analyzed on Validator 524.2 4-chlorotoluene <MDL ug/L .5 9/25/2001 SV 524.2 Benzene <MDL ug/L .5 9/25/2001 SV 524.2 Bromobenzene <MDL ug/L .5 9/25/2001 SV 524.2 Bromochloromethane <MDL ug/L .5 9/25/2001 SV 524.2 Bromomethane <MDL ug/L .5 9/25/2001 SV 524.2 Carbon tetrachloride <MDL ug/L .5 9/25/2001 SV 524.2 Chlorobenzene <MDL ug/L .5 9/25/2001 SV

213 “824.2 Chloroethane Chloromethane cis-1,2-dichloroethene <MDL <MDL <MDL ug/L ug/L ug/L .5 .5 .5 9/25/2001 9/25/2001 9/25/2001 SV SV SV 524.2 cis-1,3-dichloropropene <MDL ug/L .5 9/25/2001 SV 524.2 Dibromomethane <MDL ug/L .5 9/25/2001 SV 524.2 Dichlorodifluoromethane <MDL ug/L .5 9/26/2001 SV 524.2 Ethylbenzene < MDL ug/L .5 9/25/2001 SV 524.2 Hexachlorobutadiene <MDL ug/L .5 9/25/2001 SV 524.2 Isopropylbenzene <MDL ug/L .5 9/25/2001 SV 524.2 Methyl iso-butyl ketone (MIBK) <MDL ug/L 1.0 9/25/2001 SV 524.2 Methyl tert-butyl ether (MTBE) <MDL ug/L 1.0 9/25/2001 SV 524.2 Methylene Chloride <MDL ug/L .5 9/25/2001 SV 524.2 N-butylbenzene <MDL ug/L .5 9/25/2001 SV 524.2 N-propylbenzene <MDL ug/L .5 9/25/2001 SV 524.2 Naphthalene <MDL ug/L .5 9/25/2001 SV

Approved Donna Popp Chief of Env. Lab Services Date Approved: 10/22/2001 Environmental Laboratories Copy 10/22/2001

NYS ELAP # 10108 Page 5 of7

NYC-WTC_000026502

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NYC-WTC_000026502Source: NYC Law Department, mirrored locally

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