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Table4 <br /> First Quarter 2003 Groundwater Monitoring and Analytical Data <br /> I <br /> 7-Eleven Store#17647 <br /> 1048 West Yosemite Avenue <br /> Manteca,CA <br /> I <br /> Well ID/ a13F MtBE 1,2- Dissolved <br /> Elevation Date BenzeneFj <br /> Benzene Xylene TPH-G 8020 MtBE TBA DIPE EtBE TAME DCA EDB Notes Oxygen DTW SPT WTE <br /> (TOC)_ ( gIL} (PWL) (pg1L (PPL) (FrgIL t lF} (pgll-) (p9VL) 4u9 k (us 1 �+9►L) (mg/L) {lest) {feet} (feet) <br /> MW-3 ._ 10 1317 000 1719 <br /> 3036 01/25/00 094 <0 3 <03 c0 6 81 00 85 2 108 111 <5 <5 <5 - _ 05 1228 000 1808 <br /> 04/07/00 <0 5 <0 5 <05 <1 <100 - 26 <50 <2 <2 <2 _ 1368 000 1668 <br /> 07/20/00 <05 <0 5 <0 5 <1 <100 - 54 <50 <2 <2 <2 04 1443 000 1593 <br /> 10/13/00 <05 <0 5 <0 5 <1 <100 - 31 <50 <2 <2 <2 -- a 1 g 1324 000 1712 <br /> 01/15/01 <05 <05 064 <1 5 <i 00 -- 68 <50 <2 <2 <2 i 1 1286 000 1750 <br /> 04/04/01 <0 5 <0 5 <0 5 <1 <100 - 23 <50 <2 <2 <2 09 1560 000 1476 <br /> 06/27/01 074 <0 5 <05 <1 <100 - 36 <50 <2 <2 <2 -- -' <br /> 10/05/01 <0 5 <0 5 <0 5 0 64 <50 - <5 <20 c5 <5 <5 <5 <5 12 1663 000 1373 <br /> 01/07/02 083 162 <0 5 1 2 <50 -- <5 <20 <5 <5 <51 4 1400 000 i636 <br /> 0410g102 <0 5 <0 5 <0 5 <50 -- 95 <5 <05 <05 <0 5 056 <05 1 3 1368 000 1668 <br /> 07/01/02 <05 <0 5 <0 5 c50 <5 19 <5 <05 <05 <05 <05 <05 1 1 16 11 000 i425 <br /> 03/10/03 <0 50 < <0 50 <0 50 <50 -- 1 2 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 69 1476 000 1560 <br /> 1 1,2 <br /> Explanation L=micrograms per liter <br /> TPHg=Total petroleum hydrocarbons-as gasoline ED DCA 2 1,2 omoe haveDichloroethne m L=milligrams per liter <br /> MISE=Methyl tert butyl ether EDB=1,2 Dibromoethane = g <br /> TBA=Tert butanol DTW=Depth to water ft=feel <br /> DIPE=Disoprophyl ether SPT=Separate phase hydrocarbon thickness =Not sampled/not measured <br /> EtSE=Ethyl-tert butyl ether WTE=Water table elevation <br /> TAME=Tert amyl-methyl ether TQC=Top of casing elevation in feet above mean sea level <br /> I <br /> Notes <br /> Historical data prior to 03/10/03 sample date provided by Shaw E&I BTEX,TPHg and MtBE analyzed using EPA Method 8020/8015 Modified <br /> All samples analyzed using EPA Method 8260B starting with 03/10/03 sample date <br /> a=Method Blank Contamination The associated method blank contains the target analyte at a reportable level <br /> 1 <br /> I <br /> Page 2 of 2 <br /> 17647 03-101-listoncal Water <br />