Water analysis results, Hillview Reservoir, Oct 2001

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 HILLVIEW RESERVOIR Distribution Laboratory 96-05 Horace Harding Ex. Corona N.Y. 11368 Sample BX3 Dr. Ian Hurley ID of Source: Received KM Collection 10/3/2001 AT 10:05:00 Bottle C9225.K5871,6461,3930,P9618, Submitted 10/3/2001 AT 11:09:00 Collected By: TIGLAO/ASSILE Sample Type: POT_DW Comment: PWS No.: Source Code: Type Descriptor: Sample chilled on arrival? : YES Report

Sample No. AD24214 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 10/9/2001 DLV Aldrin < MDL ug/L 0.010 10/9/2001 DLV Chlordane < MDL ug/L 0.40 10/9/2001 DLV Dieldrin <MDL ug/L 0.016 10/9/2001 DLV Endrin <MDL ug/L 0.020 10/9/2001 DLV Heptachlor < MDL ug/L 0.020 10/9/2001 DLV Heptachlor Epoxide <MDL ug/L 0.030 10/9/2001 DLV Lindane < MDL ug/L 0.030 10/9/2001 DLV Methoxychlor <MDL ug/L 0.039 10/9/2001 DLV PCB's <MDL ug/L 0.20 10/9/2001 DLV Propachlor <MDL ug/L 0.040 10/9/2001 DLV Toxaphene <MDL ug/L 0.40 10/9/2001 DLV Endrin breakdown In the Breakdown Standard was 26%. Recoveries for two of the nine compounds in the Spiked Sample were outside of their acceptance ranges. Volatile Organic Compounds 524.2 *THM-Bromodichloromethane 3.7 ug/L .5 10/3/2001 SV 524.2 *THM-Bromoform < MDL ug/L 2.0 10/3/2001 SV 524.2 *THM-Chloroform 26 ug/L .5 10/3/2001 SV 524.2 *THM-Dibromochloromethane < MDL ug/L 2.0 10/3/2001 SV

Approved Pam Dilsizian QA Officer Date Approved: 11/15/2001

Environmental Laboratories emailed Original 11/15/2001

NYS ELAP # 10108 Page 3 of 7

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