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•• �•�■�r rr �r r� rr r rr rr r� r� rr r� ■r rr <br /> Ta 1A • <br /> Historical Groundwater Monitoring Results <br /> 7 Eleven Store#17334 <br /> 4501 North Pershing Avenue <br /> Stockton California <br /> i <br /> Well IDI Ethyl- MTBE I MTBE DissoNed <br /> Etevation Benzene TOlUene Benzene Xylene TPH-G TPH-D 8420 8260 TBA D3PE ET13E TAME Oxygen DTW SPT WTE <br /> gocG Date 1L /# 1L gAL l lI_ / IL g/L) (Pg/L) (Pg/L l (M91L) feet fest feet <br /> MW-5B cont <br /> 08/08/00 53 100 <25 140 630 - -- 19 <50 <2 <2 <2 16 1570 000 -8 24 <br /> 11114100 38 74 if 96 510 16 <50 <2 <2 <2 05 15W 000 -8 44 <br /> 02/06/01 21 32 15* 61 360 -- 5 <50 <2 <2 <2 05 1570 000 -824 <br /> 05/23/01 39 52 16 42 ..- 210 14 <50 <2 <2 <2 2 fl 15,86 0 QU -842 <br /> 08/21/01 77 170 42 190 460 -- 15 <50 <2 <2 <2 1 3 1724 000 -978 <br /> 11f06/01 13 8 12 29 16011 1 <201 <5 <5 <5 08 1771 000 -10 25 I <br /> 01/09/02 <5 <5 <5 <5 <50 - <10 <20 <5 <5 <5 09 15 80 0 00 -8 34 <br /> 04111/02 <0 50 5 <0 5 <0 5 <50 <5 <0 5 <5 <0 5 <0 5 �0 5 $ 16 46 0 0#3 -3 Oil <br /> Explanation <br /> --=Not available/not sampled TOC=Top of casing elevation(in feet above mean sea level) <br /> TPH-G=Total petroleum hydrocarbons-as gasoline DTW=Depth to water <br /> MTBE=Methyl-tert-butyl-ether SPT=Separate phase hydrocarbon thickness <br /> TBA=Tertiary Butanol WTE=Water table elevation <br /> DIPS=Di-isopropyl ether lag/L=Micrograms per liter <br /> ETRE=Ethyl-tertiary-butyl ether mg1L=Milligrams per Mer <br /> TAME=Tertiary-amyl-methyl ether ND=Not Detected <br /> `Method Blank Contamination The associated method blank contains the target analyte at a reportable level <br /> I <br /> 7-11/17334_tbl As 4 of 4 05-20-02 <br />