Water analysis results, Staten Island site, Sept 2001

NYC 9/11 Public Portal Document

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

@gency: New York City DEP DWQC Sample HILLVIEW RESERVOIR ° Distribution Laboratory 96-05 Horace Harding Ex. Corona N.Y. 11368 Sample BX58 Dr. Ian Hurley ID of Source: Received KM Collection 09/19/01 AT 8:55:00 Bottle BX58A,B,C,D Submitted 09/19/01 AT 10:37:00 Collected By: YACOUB/TIGLAO Sample Type: POT_DW Comment: SAMPLES SUBMITTED IN PWSNo.: Source Code: NON-LABORATORY CONTAINERS. Type Descriptor: Chilled on arrival?: YES Report

Sample No. AD22918 Method Test Description Results Units MDL Analyzed on Validator 524.2 Isopropylbenzene <MDL ug/L .5 09/19/01 SV 524.2 Methyl iso-butyl ketone (MIBK) <MDL ug/L 1.0 09/19/01 SV 524.2 Methyl tert-butyl ether (MTBE) <MDL ug/L 1.0 09/19/01 SV 524.2 Methylene Chloride <MDL ug/L .5 09/19/01 SV 524.2 N-butylbenzene <MDL ug/L .5 09/19/01 SV 524.2 N-propylbenzene <MDL ug/L .5 09/19/01 SV 524.2 Naphthalene <MDL ug/L .5 09/19/01 SV 524.2 O-xylene <MDL ug/L .5 09/19/01 SV

62 524.2 P & M-xylene P-isopropyltoluene SEC-butylbenzene <MDL <MDL <MDL ug/L ug/L ug/L .5 .5 .5 09/19/01 09/19/01 09/19/01 SV SV SV 524.2 Styrene <MDL ug/L .5 09/19/01 SV 524.2 TERT-butylbenzene <MDL ug/L .5 09/19/01 SV 524.2 Tetrachloroethene < MDL ug/L .5 09/19/01 SV 524.2 Toluene <MDL ug/L .5 09/19/01 SV 524.2 trans-1,2-dichloroethene <MDL ug/L .5 09/19/01 SV 524.2 trans-1,3-dichloropropene <MDL ug/L .5 09/19/01 SV 524.2 Trichloroethene <MDL ug/L .5 09/19/01 SV 524.2 Trichlorofluoromethane <MDL ug/L .5 09/19/01 SV 524.2 Vinyl chloride <MDL ug/L .5 09/19/01 SV

Approved Donna Popp Chief of Env. Lab Services Date Approved: 10/09/01

Environmental Laboratories Copy 10/09/01

NYS ELAP # 10108 Page 6 of 8

NYC-WTC_000026161