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 QUEENS Distribution Laboratory 96-05 Horace Harding Ex. Corona N.Y. 11368 Sample 42350 Dr. Ian Hurley ID of Source: Received KM Collection 10/2/2001 AT 10:50:00 Bottle C9979.K6673,5749,5364,132,130 Submitted 10/3/2001 AT 11:09:00 Collected By: AHMAD Sample Type: POT_DW Comment: PWS No.: Source Code: Type Descriptor: Sample chilled on arrival? : YES Report

Sample No. AD24219 Method Test Description Results Units MDL Analyzed on Validator bis(2-Ethylhexyl)phthalate <MDL ug/L 0.60 10/15/2001 DLV Butachlor < MDL ug/L 0.40 10/15/2001 DLV EPTC <MDL ug/L 1.0 10/15/2001 DLV Hexachlorobenzene <MDL ug/L 0.10 10/15/2001 DLV Hexachlorocyclopentadiene < MDL ug/L 0.10 10/15/2001 DLV Metolachlor <MDL ug/L 0.75 10/15/2001 DLV Metribuzin <MDL ug/L 0.15 10/15/2001 DLV Molinate <MDL ug/L 0.90 10/15/2001 DLV Simazine <MDL ug/L 0.40 10/15/2001 DLV Terbacil < MDL ug/L 2.0 10/15/2001 DLV The recovery for bis(2-Ethylhexyl)phthalate in the MDL Standard was above its acceptance range. This is probably due to laboratory contamination. GCMS Scan For Unknowns Other unknown compounds ug/L 11/6/2001 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. However, 1,2-Dichlorobenzene-d4 is present at 0.27 ug/L, probably due to laboratory contamination since it is a Surrogate Standard used in GCMS methods. Also present are some siloxanes associated with column bleed. Stat charge for VOLATILE organic Completed 10/3/2001 12:04 AM SV

Approved Pam Dilsizian QA Officer Date Approved: 11/19/2001

Environmental Laboratories emailed Original 11/19/2001

NYS ELAP # 10108 Page 7 of 7

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