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Water analysis report, NYC DEP, Metals testing, Nov-Dec 2001

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Laboratory analysis report for NYC DEP water samples collected November 20, 2001, testing for antimony, arsenic, and barium.

NYC-WTC_000070990–000070997

Folder label: “28593

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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 35940 Distribution Laboratory 96-05 Horace Harding Ex. Corona N.Y. 11368 Sample 51050 Dr. Ian Hurley ID of Source: Received LK Collection 11/20/2001 AT Bottle C0562.Q922,923,P1 096,1089 Submitted 11/21/2001 AT Collected By: GERTSIK Sample Type: POT DW Comment: PWS No.: Source Code: Type Descriptor: Sample chilled on arrival? : YES Report

Sample No. AD28599 Method Test Description Results Units MDL Analyzed on Validator EPA94 Molybdenum < MDL ug/L 50.0 12/20/2001 PAD

EPA79 Potable Metals Digestion Completed 11/26/2001 PAD

SM18 Tin < MDL ug/L 100 1/2/2002 PAD Organics GCMS Scan For Unknowns Other unknown compounds ug/L 12/7/2001 DLV The GCMS scan, from 35 to 550 amu, does not reveal the presence of unusual compounds. The recovery for the Surrogate Standard in this sample was 73%. Recoveries for 16 of the 44 compounds in the LCS Standard were outside of their acceptance ranges.

Approved Pam Dilsizian QA Officer Date Approved: 1/2/2002 Environmental Laboratories emailed Original 1/2/2002

NYS ELAP #10108 Page 2 of 2

NYC-WTC_000070997

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NYC-WTC_000070997Source: NYC Law Department, mirrored locally

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