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 29450 DEP LAB #29352 Dr. Ian Hurley ID of Source: Received KM Collection 9/27/2001 AT 9:07:00 Bottle c36,k7327,4455,6865,8815,8781, Submitted 9/28/2001 AT 11:17:00 Collected By: AHMAD Sample Type: POT_DW Comment: PWS No.: Source Code: Type Descriptor: Sample chilled on arrival?: YES Report

Sample No. AD23836 Method Test Description Results Units MDL Analyzed on Validator 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. GCMS Scan For Unknowns Other unknown compounds ug/L 11/1/2001 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 any non-target compounds generally different than those present in the Laboratory Blank. Stat charge for VOLATILE organic Completed 10/1/2001 11:49 AM DLV

Approved Pam Dilsizian QA Officer Date Approved: 11/7/2001

Environmental Laboratories emailed Original 11/7/2001

NYS ELAP # 10108 Page 7 of 7

NYC-WTC_000026899