Water analysis report, Bronx samples, 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 BROOKLYN Distribution Laboratory 96-05 Horace Harding Ex. Corona N.Y. 11368 Sample 24750 Dr. Ian Hurley ID of Source: Received JLM Collection 10/5/2001 AT 10:57:00 Bottle 24750 DEP#30329 Submitted 10/6/2001 AT 11:28:00 Collected By: GERTSIK Sample Type: POT_DW Comment: PWS No.: Source Code: Type Descriptor: Sample chilled on arrival? : yes Report

Sample No. AD24475 Method Test Description Results Units MDL Analyzed on Validator 524.2 O-xylene < MDL ug/L .5 10/9/2001 SV 524.2 P & M-xylene <MDL ug/L .5 10/9/2001 SV 524.2 P-isopropyltoluene <MDL ug/L .5 10/9/2001 SV 524.2 SEC-butylbenzene <MDL ug/L .5 10/9/2001 SV 524.2 Styrene <MDL ug/L .5 10/9/2001 SV 524.2 TERT-butylbenzene <MDL ug/L .5 10/9/2001 SV 524.2 Tetrachloroethene <MDL ug/L .5 10/9/2001 SV 524.2 Toluene <MDL ug/L .5 10/9/2001 SV 524.2 trans-1,2-dichloroethene <MDL ug/L .5 10/9/2001 SV 524.2 trans-1,3-dichloropropene <MDL ug/L .5 10/9/2001 SV 524.2 Trichloroethene <MDL ug/L .5 10/9/2001 SV 524.2 Trichlorofluoromethane <MDL ug/L .5 10/9/2001 SV 524.2 Vinyl chloride <MDL ug/L .5 10/9/2001 SV DICHLOROACETONITRILE FOUND AS A TENTATIVELY IDENTIFIED COMPOUND BY METHOD 524.2. THE APPROXIMATE CONCENTRATION IS 0.05 ug/L. 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 6 of 6

NYC-WTC_000027472