Water analysis results, Hillview Reservoir, Sept 2001

NYC 9/11 Public Portal Document

REPORT OF ANALYSIS Westchester County Department of Labs and Research 2 Dana Road Valhalla, New York @goncy: New York City DEP DWQC Sample BROOKLYN Distribution Laboratory 96-05 Horace Harding Ex. Corona N.Y. 11368 Sample 21550 DEP LAB #29197 Dr. Ian Hurley ID of Source: Received KM Collection 9/26/2001 AT 8:47:00 Bottle c64,k6517,6414,6770,8782,8782, Submitted 9/27/2001 AT 11:16:00 Collected By: TSUI Sample Type: POT_DW Comment: PWS No.: Source Code: Type Descriptor: Sample chilled on arrival? : YES Report

Sample No. AD23720 Method Test Description Results Units MDL Analyzed on Validator bis(2-Ethylhexyl)phthalate 54 ug/L 0.60 10/9/2001 DLV Butachlor < MDL ug/L 0.40 10/9/2001 DLV EPTC < MDL ug/L 1.0 10/9/2001 DLV Hexachlorobenzene < MDL ug/L 0.10 10/9/2001 DLV Hexachlorocyclopentadiene < MDL ug/L 0.10 10/9/2001 DLV Metolachlor <MDL ug/L 0.75 10/9/2001 DLV Metribuzin < MDL ug/L 0.15 10/9/2001 DLV Molinate < MDL ug/L 0.90 10/9/2001 DLV Simazine <MDL ug/L 0.40 10/9/2001 DLV Terbacil < MDL ug/L 2.0 10/9/2001 DLV Recoveries for three of the eighteen compounds in the MDL Standard and the LCS Standard were outside of their acceptance ranges. Recoveries for two of the eighteen compounds in the Spiked Sample and the Spiked Duplicate Sample were outside of their acceptance ranges. The level for bis(2-EthylhexyI)phthalate in the Laboratory Blank was 0.76 ug/L. The result of 54 ug/L for this sample may be due to a laboratory accident. GCMS Scan For Unknowns Other unknown compounds ug/L 10/17/2001 DLV A scan of the extract prepared for the 508 analysis, from 35-550 arrtu using a mass spectrometer, reveals the tentative presence of d-Limonene at an estimated level of 0.9 ug/L. Stat charge for VOLATILE organic Completed 9/27/2001 12:06 AM SV

Approved Pam Dilsizian QA Officer Date Approved: 11/5/2001

Environmental Laboratories emailed Original 11/5/2001

NYS ELAP # 10108 Page 7 of 7

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