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Water analysis report, Bronx samples, Oct 2001

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Laboratory report detailing chemical analysis results for silver, aluminum, and arsenic in drinking water samples collected from the Bronx.

NYC-WTC_000027446–000027493

Folder label: “24472

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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 31050 Dr. Ian Hurley ID of Source: Received JLM Collection 10/5/2001 AT 11:51:00 Bottle 31050 DEP #30334 Submitted 10/6/2001 AT 11:28:00 Collected By: VASSILEV Sample Type: POT_DW Comment: PWS No.: Source Code: Type Descriptor: Sample chilled on arrival?: yes Report

Sample No. AD24476 Method Test Description Results Units MDL Analyzed on Validator bis(2-Ethylhexyl)phthalate 0.84 ug/L 0.60 10/16/1999 DLV Butachlor <MDL ug/L 0.40 10/16/1999 DLV EPTC <MDL ug/L 1.0 10/16/1999 DLV Hexachlorobenzene <MDL ug/L 0.10 10/16/1999 DLV Hexachlorocyclopentadiene <MDL ug/L 0.10 10/16/1999 DLV Metolachlor <MDL ug/L 0.75 10/16/1999 DLV Metribuzin <MDL ug/L 0.15 10/16/1999 DLV Molinate < MDL ug/L 0.90 10/16/1999 DLV Simazine < MDL ug/L 0.40 10/16/1999 DLV Terbacil < MDL ug/L 2.0 10/16/1999 DLV The recovery for bis(2-Ethylhexyl)phthalate in the MDL Standard was above its acceptance range. Recoveries for 4 of the 18 compounds in one of the Spiked Samples were below their acceptance ranges. GCMS Scan For Unknowns Other unknown compounds ug/L 11/14/2001 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: 11/29/2001

Environmental Laboratories emailed Original 11/29/2001

NYS ELAP # 10108 Page 7 of 7

NYC-WTC_000027479

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NYC-WTC_000027479Source: NYC Law Department, mirrored locally

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