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 BRONX Distribution Laboratory 96-05 Horace Harding Ex. Corona N.Y. 11368 Sample 14350 Dr. Ian Hurley ID of Source: Received JLM Collection 10/5/2001 AT 10:51:00 Bottle 14350 DEP #30318 Submitted 10/6/2001 AT 11:28:00 Collected By: TSUI Sample Type: POT_DW Comment: PWS No.: Source Code: Type Descriptor: Sample chilled on arrival?: yes Report

Sample No. AD24474 Method Test Description Results Units MDL Analyzed on Validator Acetochlor < MDL ug/L 2.0 10/16/1999 DLV Alachlor < MDL ug/L 0.20 10/16/1999 DLV Atrazine <MDL ug/L 0.10 10/16/1999 DLV Benzo(a)pyrene <MDL ug/L 0.20 10/16/1999 DLV bis(2-Ethylhexyl)adipate <MDL ug/L 0.60 10/16/1999 DLV bis(2-Ethylhexyi)phthalate 1.3 ug/L 0.60 10/16/1999 DLV Butachlor <MDL ug/L 0.40 10/16/1999 DLV EPTC <MDL ug/L 1.0 10/16/1999 DLV Hexachlorobenzene <MDL ug/L 0.10 10/16/1999 DLV Hexachlorocyclopentadiene <MDL ug/L 0.10 10/16/1999 DLV Metolachlor <MDL ug/L 0.75 10/16/1999 DLV Metribuzin <MDL ug/L 0.15 10/16/1999 DLV Molinate <MDL ug/L 0.90 10/16/1999 DLV Simazine <MDL ug/L 0.40 10/16/1999 DLV Terbacil < MDL ug/L 2.0 10/16/1999 DLV The recovery for bis(2-Ethylhexyl)phthalate in the MDL Standard was above its acceptance range. Recoveries for 4 of the 18 compounds in one of the Spiked Samples were below their acceptance ranges. GCMS Scan For Unknowns Other unknown compounds ug/L 11/9/2001 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, except for 1,2-Dichlorobenzene-d4 at 0.25 ug/L, probably due to laboratory contamination, since it is used as a Surrogate Standard in GCMS analyses.

Approved Pam Dilsizian QA Officer Date Approved: 11/29/2001

Environmental Laboratories emailed Original 11/29/2001

NYS ELAP # 10108 Page 7 of 7

NYC-WTC_000027466