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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 24, 2001.

NYC-WTC_000026569–000026582

Folder label: “23359

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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

gency: New 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 KM Collection 9/24/2001 AT 9:35:00 Bottle C44,8657,8656,8569,8649,8664, Submitted 9/24/2001 AT 10:34:00 Collected By: TIGLAO Sample Type: POT DW Comment: PWSNo.: Source Code: Type Descriptor: Sample chilled on arrival?: YES Report

Sample No. AD23359 Method Test Description Results Units MDL Analyzed on Validator EPA94 Thallium <MDL ug/L 2 9/28/2001 PAD EPA94 Vanadium <MDL ug/L 20.0 9/26/2001 PAD EPA94 Zinc <MDL ug/L 20.0 9/26/2001 PAD Organics Chlorine Pesticides - 508 4,4-DDE <MDL ug/L 0.080 9/26/2001 DLV Aldrin <MDL ug/L 0.010 9/26/2001 DLV Chlordane <MDL ug/L 0.40 9/26/2001 DLV Dieldrin <MDL ug/L 0.016 9/26/2001 DLV Endrin <MDL ug/L 0.020 9/26/2001 DLV Heptachlor <MDL ug/L 0.020 9/26/2001 DLV Heptachlor Epoxide <MDL ug/L 0.030 9/26/2001 DLV Lindane <MDL ug/L 0.030 9/26/2001 DLV Methoxychlor <MDL ug/L 0.039 9/26/2001 DLV PCB's <MDL ug/L 0.20 9/26/2001 DLV Propachlor <MDL ug/L 0.040 9/26/2001 DLV Toxaphene <MDL ug/L 0.40 9/26/2001 DLV The recovery for the Surrogate Standard was above its acceptance range, based on data from one chromatographic column. Volatile Organic Compounds 524.2 *THM-Bromodichloromethane 3.0 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 3 of 7

NYC-WTC_000026571

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NYC-WTC_000026571Source: NYC Law Department, mirrored locally

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NYC-WTC_000026566 · Box DEP Box 19

Westchester County Department of Labs and Research chain of custody form for environmental samples submitted by the City DEP.

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