Water analysis results, Hillview Reservoir, Sept 2001

NYC 9/11 Public Portal Document

Westchester County 10/2/01 7:46 PAGE 31/170 RightFAX

REPORT OF ANALYSIS Westchester County Department of Labs and Research 2 Dana Road Valhalla, New York 10595

Agency: New York City DEP DWQC Sample Location: HILLVIEW RESERVOIR Distribution Laboratory 96-05 Horace Harding Ex. 8th Corona N.Y. 11368 Sample Point: SITEBX58 Dr. Ian Hurley ID of Source: Received By: KM Collection Date: 09/17/01 AT 9:15:00 AM Bottle No.: 0917BX58 Submitted On: 09/17/01 AT 10:41:00 A Collected By: AT/VT Sample Type: POT_DW Comment: SAMPLES SUBMITTED IN NON­ PWS No.: Source Code: LABORATORY CONTAINER. Type Descriptor: Chilled on arrival?: yes Report To:

Sample No. AD22578 Method Test Description Results Units MDL Analyzed on Validator 524.2 O-xylene <MDL ug/L .5 09/17/01 SV 524.2 P & M-xylene <MDL ug/L .5 09/17/01 SV 524.2 P-isopropyltoluene <MDL ug/L .5 09/17/01 SV 524.2 SEC-butylbenzene <MDL ug/L .5 09/17/01 SV 524.2 Styrene <MDL ug/L .5 09/17/01 SV 524.2 TERT-butylbenzene <MDL ug/L .5 09/17/01 SV 524.2 Tetrachloroethene <MDL ug/L .5 09/17/01 SV 524.2 Toluene <MDL ug/L .5 09/17/01 SV 524.2 trans-1,2-dichloroethene < MDL ug/L .5 09/17/01 SV 524.2 trans-1,3-dichloropropene <MDL ug/L .5 09/17/01 SV 524.2 Trichloroethene <MDL ug/L .5 09/17/01 SV 524.2 Trichlorofluoromethane <MDL ug/L .5 09/17/01 SV 524.2 Vinyl chloride <MDL ug/L .5 09/17/01 SV DICHLOROACETONITRILE FOUND AS A TENTATIVELY IDENTIFIED COMPOUND BY METHOD 524.2. THE APPROXIMATE CONCENTRATION IS 0.05 ug/L. Organic Chemicals - 525.2 2,4-Dinitrotoluene <MDL ug/L 2.0 09/21/01 DLV 2,6-Dinitrotoluene <MDL ug/L 2.0 09/21/01 DLV 4,4-DDE <MDL ug/L 0.80 09/21/01 DLV Acetochlor <MDL ug/L 2.0 09/21/01 DLV Alachlor <MDL ug/L 0.20 09/21/01 DLV Atrazine <MDL ug/L 0.10 09/21/01 DLV

Approved By: Pam Dilsizian QA Officer Date Approved: 10/02/01

Environmental Laboratories Copy 10/02/01 NYS ELAP # 40408 (914) 234-4820 Page 6 of 7

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