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Table 1 <br /> Groundwater Monitoring Results <br /> July 10,2002 <br /> 7-Eleven Store#17334 <br /> 4501 North Pershing Avenue <br /> Stockton,California <br /> Well IDI Ethyl- MTBE MTBE dissolved <br /> Elevation Benzene Toluene Benzene Xylene TPH-G TPH-D 802€3 8260 TBA D1PE ETRE TAME Oxygen DTW SPT WTE <br /> (Tat:) Date (1jq/L) (Ng/L) (Ng/L) (lig/L) (llgjl-) (Ng/L) (pgIL) (1J911-) (pglL) (p9IL) (pg/L): (tig/L) (rng/L) (feet) (feet) (feet) <br /> MW-1 <br /> 7 34 Well destroyed 08114198 and replaced by MW-5A on OM5198 <br /> MW-1A <br /> 7 26 Well destroyed 0&14198 and{eplaced by MW-55 on 08 5198 <br /> MW-2 <br /> 8 64 07110/02 s0,5 1.5 <uj <0.5 87 0.8 <5 <0,5 <0 5 <0 5 09 117,67 000 -9,03 <br /> Iltl'W.3 <br /> 7 44 07110102. <0 5 <0.5 <0 5 <0.5 <50 <5 <05 <5 <0 5 <0-5 <0 5 1.0 17 44 0.00 -11100 <br /> MW-4 <br /> 6 69 07/10102 <0 5 6 t1 1A 610 -- 2,040 2,800 630 <50 <50 <50 12 1725 ;: 000 ..-1056 <br /> MW-5A <br /> 7 22 07110/022,200 4,400 1,600 5,60040,000 410 500 <1 701 X17 <17 <17 1 (3 17.30 0 00 .10 05 <br /> F <br /> W-6B <br /> 7 46 117110182 <Q 5 <0 5 <0 5 <0 51. <50 <5 0.52 <5 <fl 51 <01 51 <0,51 08 117 52 0.00.1-10 0B <br /> Explanation ETBE=ethyl tett butyl ether WT Water table elevation <br /> --=Not available/not sampled TAME=tert-amylmethyl ether pg1L=Micrograms per liter <br /> TPH-G=total petroleum hydrocarbons-as-gasoline TOC=Top of casing elevation(in feet above mean sea level) mg/L=Milligrams per liter <br /> MTBE=methyl-tent-butyl-ether DTW=Depth to water ND=Not Detected <br /> TBA=tert-butanol SPT=Separate-phase hydrocarbon thickness <br /> DIPE=dosopropyl ether <br /> 7-11/17334 tbl As 1 of 1 08-15-02 <br />