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 STATEN ISLAND
Distribution Laboratory
96-05 Horace Harding Ex.
Corona N.Y. 11368 Sample 52550
Dr. Ian Hurley ID of Source:
Received KM Collection 10/2/2001 AT 11:40:00
Bottle 9988,4311,7134,6737,290,0151,0 Submitted 10/3/2001 AT 11:09:00
Collected By: DESSOURCES/JOK Sample Type: POT_DW
Comment: PWS No.: Source Code:
Type Descriptor:
Sample chilled on arrival? : YES
Report
Sample No. AD24220
Method Test Description Results Units MDL Analyzed on Validator
524.2 P-isopropyltoluene < MDL ug/L .5 10/3/2001 SV
524.2 SEC-butylbenzene < MDL ug/L .5 10/3/2001 SV
524.2 Styrene < MDL ug/L .5 10/3/2001 SV
524.2 TERT-butylbenzene <MDL ug/L .5 10/3/2001 SV
524.2 Tetrachloroethene <MDL ug/L .5 10/3/2001 SV
524.2 Toluene < MDL ug/L .5 10/3/2001 SV
524.2 trans-1,2-dichloroethene <MDL ug/L .5 10/3/2001 SV
524.2 trans-1,3-dichloropropene < MDL ug/L .5 10/3/2001 SV
524.2 Trichloroethene <MDL ug/L .5 10/3/2001 SV
524.2 Trichlorofluoromethane <MDL ug/L .5 10/3/2001 SV
524.2 Vinyl chloride < MDL ug/L .5 10/3/2001 SV
DICHLOROACETONITRILE FOUND AS A TENTATIVELY IDENTIFIED COMPOUND BY METHOD 524.2. THE
APPROXIMATE CONCENTRATION IS 0.09 ug/L.
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-DichIorobenzene-d4 is present at 0.29 ug/L, probably due to
laboratory contamination since it is a Surrogate Standard used in GCMS methods. The 525.2 analysis was cancelled
due to poor Internal Standard recovery for this sample. However a review of the 525.2 analysis data clearly
indicates that target analyte concentrations are below the method's MDLs.
Stat charge for VOLATILE organic Completed 10/3/2001 12:04 AM SV
Approved Pam Dilsizian QA Officer Date Approved: 11/26/2001
Environmental Laboratories emailed Original 11/26/2001
NYS ELAP #10108 Page 6 of 6
NYC-WTC_000027244
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