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Water analysis results, Hillview Reservoir, Oct 2001

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Laboratory report detailing chemical analysis of drinking water samples collected on October 3, 2001.

NYC-WTC_000027197–000027244

Folder label: “24214

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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 MANHATTAN Distribution Laboratory 96-05 Horace Harding Ex. Corona N.Y. 11368 Sample 39650 Dr. Ian Hurley ID of Source: Received KM Collection 10/2/2001 AT 9:45:00 Bottle C9982.K7654,4472,6890,315,163 Submitted 10/3/2001 AT 11:09:00 Collected By: BROWN Sample Type: POT_DW Comment: PWS No.: Source Code: Type Descriptor: Sample chilled on arrival?: YES Report

Sample No. AD24218 Method Test Description Results Units MDL Analyzed on Validator EPA94 Zinc <MDL ug/L 20.0 10/12/2001 PAD Organics Chlorine Pesticides - 508 4,4-DDE < MDL ug/L 0.080 10/10/2001 DLV Aldrin <MDL ug/L 0.010 10/10/2001 DLV Chlordane < MDL ug/L 0.40 10/10/2001 DLV Dieldrin <MDL ug/L 0.016 10/10/2001 DLV Endrin <MDL ug/L 0.020 10/10/2001 DLV Heptachlor <MDL ug/L 0.020 10/10/2001 DLV Heptachlor Epoxide <MDL ug/L 0.030 10/10/2001 DLV Lindane <MDL ug/L 0.030 10/10/2001 DLV Methoxychlor <MDL ug/L 0.039 10/10/2001 DLV PCB's <MDL ug/L 0.20 10/10/2001 DLV Propachlor < MDL ug/L 0.040 10/10/2001 DLV Toxaphene <MDL ug/L 0.40 10/10/2001 DLV The breakdown for Endrin in the Breakdown Standard was 22%. Volatile Organic Compounds 524.2 *THM-Bromodichloromethane 3.5 ug/L 0.5 10/3/2001 SV 524.2 *THM-Bromoform <MDL ug/L 2.0 10/3/2001 SV 524.2 *THM-Chloroform 27 ug/L 0.5 10/3/2001 SV 524.2 *THM-Dibromochloromethane <MDL ug/L 2.0 10/3/2001 SV 524.2 1,1,1,2-tetrachloroethane <MDL ug/L 0.5 10/3/2001 SV

Approved Pam Dilsizian QA Officer Date Approved: 12/20/2001

Environmental Laboratories emailed Original 12/20/2001

NYS ELAP # 10108 Page 3 of 7

NYC-WTC_000027227

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NYC-WTC_000027227Source: NYC Law Department, mirrored locally

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