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Water analysis report, Silver, Aluminum, Arsenic, Nov 2001

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Lab report for NYC DEP water samples collected November 9, 2001, testing for silver, aluminum, and arsenic.

NYC-WTC_000070660–000070685

Folder label: “27544

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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 STATEN ISLAND Distribution Laboratory 96-05 Horace Harding Ex. Corona N.Y. 11368 Sample 50650 Dr. Ian Hurley ID of Source: Received EP Collection 11/8/2001 AT 11:55:00 Bottle c491 ,p692,694,718,q612,617,625 Submitted 11/9/2001 AT 10:49:00 Collected By: MOHAN Sample Typo: POT_DW Comment: PWS No.: Source Code: Type Descriptor: Sample chilled on arrival? : yes Report

Sample No. AD27550 Method Test Description Results Units MDL Analyzed on Validator Organics Chlorine Pesticides - 508 4,4-DDE <MDL ug/L 0.080 11/15/2001 DLV Aldrin <MDL ug/L 0.010 11/15/2001 DLV Chlordane <MDL ug/L 0.40 11/15/2001 DLV Dieldrin <MDL ug/L 0.016 11/15/2001 DLV Endrin <MDL ug/L 0.020 11/15/2001 DLV Heptachlor <MDL ug/L 0.020 11/15/2001 DLV Heptachlor Epoxide <MDL ug/L 0.030 11/15/2001 DLV Lindane <MDL ug/L 0.030 11/15/2001 DLV Methoxychlor <MDL ug/L 0.039 11/15/2001 DLV PCB's <MDL ug/L 0.20 11/15/2001 DLV Propachlor <MDL ug/L 0.040 11/15/2001 DLV Toxaphene <MDL ug/L 0.40 11/15/2001 DLV The recoveries for 4 of the 11 compounds in the LCS Standard were below their acceptance ranges. The recovery for the Surrogate Standard in this sample was below its acceptance range. The EPA 525.2 analysis was cancelled GCMS Scan For Unknowns Other unknown compounds ug/L 12/18/2001 DLV A scan of the extract prepared for the 508 analysis, from 35-550 amu using a mass spectrometer, does not reveal the presence of non-target compounds.

Approved Pam Dilsizian QA Officer Date Approved: 1/22/2002

Environmental Laiioratories emailed Original 1/22/2002

NYS ELAP # 10108 Page 3 of 3

NYC-WTC_000070685

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NYC-WTC_000070685Source: NYC Law Department, mirrored locally

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NYC-WTC_000070652 · Box DEP Box 61

Record documenting the chain of custody for samples submitted to the Westchester County Department of Labs and Research.

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