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 47150/DEP LAB #28401
Dr. Ian Hurley ID of Source:
Received EP Collection 09/19/01 AT 10:30:00
Bottle 508,204,6113,6261,7162 Submitted 09/20/01 AT 10:51:00
Collected By: VASSILEV Sample Type: POT_DW
Comment: PWS No.: Source Code:
Type Descriptor:
Chilled on arrival?: yes
Report
Sample No. AD23084
Method Test Description Results Units MDL Analyzed on Validator
Recoveries for three of the eighteen compounds in the MDL Standard were above their acceptance ranges. The
recovery for Terbacil in the LCS Standard was above its acceptance range. The recoveries for six of the eighteen
compounds in the Spiked Sample were outside their acceptance ranges. The recovery for one of the three Surrogate
Standards in this sample was below its acceptance range.
GCMS Scan For Unknowns
Other unknown compounds ug/L 10/10/01 DLV
A scan of the extract prepared for the 508 analysis, from 35 - 550 amu using a mass spectrometer, does reveal the
gresence of non-target compounds. These hydrocarbons do not appear to be present in the Laboratory Blank.
Cbwever, these hydrocarbons were present in previous Laboratory Blanks, and also some samples, analyzed for
this NYCDEP project. An investigation is being made to determine the source of these hydrocarbons, if other than
the samples themselves, i.e. laboratory equipment and reagents.
Stat charge for VOLATILE organic Completed 09/24/01 3:04 PM SV
Approved Donna Popp Chief of Env. Lab Services Date Approved: 10/15/01
Environmental Laboratories Copy 10/16/01
NYS ELAP # 10108 Page 8 of8
NYC-WTC_000026313
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