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i • • r <br /> TABLE 1 <br /> GROUNDWATER MONITORING DATA <br /> Beacon Station No 3641 <br /> 1210 E Hammer Lane,Stockton,California <br /> Depth to TOC OW <br /> Well TPHg benzene toluene elhylbenzene xylenes MTBE D1PE ETBE TAME TBA methanol ethanol DCA EDB GW Elevation Elevation <br /> Number Date (u A) (ug") (ug l) (u I) NO) (ugA) (ug/1) WWI) (ug") <br /> (ug/1) (u 11} (u !I) u f) {ugA) (feet) (feet msl) (feet msl) Comments <br /> V1NA 03125/99 its ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm nm dry <br /> nm dry <br /> screened 06102199 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm <br /> Interval 08!31199 ns ns ns ns ns ns ns ns ns ns ns Its ns ns nm nm dry <br /> 22'32 12109!99 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm dry <br /> 03101/00 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm dry <br /> 06!06!00 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm dry <br /> 09/14100 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm dry <br /> 12/12100 ns ns ns ns its ns ns ns ns ns ns ns ns ns nm nm dry <br /> 03/19101 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm dry <br /> 06!19!01 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm dry <br /> 09127101 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm dry <br /> 12113/01 ns ns ns ns ns ns ns ns ns ns Its ns ns ns nm nm dry <br /> 03128102 ns ns ns ns ns ns ns ns n$ ns ns ns ns ns nm nm dry <br /> 06/19102 ns ns ns ns ns ns ns ns ns ns na ns ns ns nm nm dry <br /> 09/16/02 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm dry <br /> 12/26102 ns ns ns ns ns ns ns ns ns ns ns Its ns ns nm nm dry <br /> 03126!03 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm dry <br /> 06/27/03 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm dry <br /> 09119103 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm dry <br /> 12/30103 ns ns ns ns ns ns ns ns ns ns its ns ns ns nm nm dry <br /> 03/26104 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm nm dry <br /> Notes TPHg=total petroleum hydrocarbons as gasoline ppfl=micrograms per liter(pans per billion or ppb) <br /> MTBE=methyl t-butyl ether GW=groundwater <br /> DIPE=dusopropyl ether TOC=top of casing <br /> ETBE=ethyl t butyl ether na=not analyzed <br /> TAME=ten butanol tiro=not measured <br /> TBA—ten-butyl alcohol FP=free product <br /> DCA=12-dechloroethane !=biased slightly high see analytical report <br /> EDB=1 2-drbromoeilsane <br /> 641ymrxla Page 11 of 11 HORIZON ENVIRONMENTAL INC <br /> Propel Na 164147 <br />