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TABLE 3 <br /> Historical Groundwater Monitoring and Analytical Data - <br /> Ranch Market <br /> 23569 South Santa Fe Road <br /> Riverbank,California <br /> wWell NoJ Et l CEPA 8020 , EPA method 8260 B `r <br /> EI' EMTBE' -TBA' DIPE- _ETBA TAME 1,2-DCA EDB DTW** 8P'Cy WTE <br /> (Tom}* q u ) <br /> OWL) (u -) to ) (u ) (use) (>r -) (,U ) (f) (ft)T (ft) <br /> Domestic Wells <br /> w-1 <br /> 01/23/98 <3 0 <3 0 <3 0 <3 0 <50 a ND ND ND ND ND <br /> 12/25/99 <0 3 <0 3 <0 3 <0 3 <50 a <5 <20 <5 <5 <5 <5 <5 <br /> 04/06/00 <0 50 <0 50 <0 50 <0 50 <50 b -- <0 50 <5 0 <0 50 <0 50 <0 50 <0 50 <0 5 <br /> 05/03/00 <0 50 <0 50 <0 50 <0 50 <50 b <0 50 <5 0 <0 50 <0 50 <0 50 <0 50 <0 5 <br /> 06101/00 <0 50 <0 50 <0 50 <0 50 <50 b <F�_Q <5 0 <0 50 <0 50 <0 50 <0 50 <0 5 <br /> 07/25/00 <0 50 <0 50 <0 50 <0 50 <50 b <5 0 <0 50 <0 50 <0 50 <0 50 <0 5 <br /> W-2 0 <br /> 10/07/49 -- •- -- •• a -- 38 10 <10 <l0 <br /> 11/03/99 -- -. -- .. ., a -- 58 <br /> 12/25/99 <0 3 <0 3 <0 3 <0 3 <50 a 11 <20 <5 <5 <5 <5 <5 <br /> 04/06/00 <0 50 <0 50 <0 50 077 <50 b,c 70 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 27 15 <br /> W-3 <br /> 10/07/99 a -- <10 <10 <10 <10 <10 <br /> 12/25/99 <0 3 <0 3 <0 3 <0 3 <50 a <5 <20 <5 <5 <5 <5 <5 <br /> 04/06/00 <0 50 <0 50 <0 50 <0 50 <50 b <0 50 <5 0 <0 50 <0 50 <0 50 <0 50 <0 5 <br /> W-4 <br /> 10/07/99 -- -- -- -- -- a -- <10 <10 <10 <10 <10 - <br /> 12/25/99 <0 3 <0 3 <0 3 <0 3 <50 a <5 <20 <5 <5 <5 <5 <5 <br /> 04/06/00 <0 50 <0 50 <0 50 <0 50 <50 b <0 50 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 j <br /> EXPLANATION <br /> TOC*=Top of Casing elevation in feet above mean sea level TPH-G=Total petroleum hydrocarbons-as-gasoline <br /> **=Feet below top of casing measured from the northerly side MTBE=Methyl-cert-butyl-ether <br /> AgIL=Micrograms per liter TBA=tert-Butanol <br /> --=Not sampled/not analyzed/not measured DIPE=Di-isopropyl Ether <br /> DTW=Depth to water ETBE=Ethyl-tent-butyl Ether <br /> SPT=Separate-phase thickness TAME=tert-Amylmethyl Ether <br /> WTE=Water table elevation 1,2-DCA=1,2-Dichloroethane <br /> a=analyzed for TPHg,BTEX EPA methods 8020/815 EDB=1,2-Dtbromoethane <br /> b=analyzed for TPHg,BTEX,&Oxygenates using EPA method 8260B <br /> c=No purge water sample bailed from well <br /> d=depth below grade,discrete water sample collected from <br /> File Ranch Market\RB-HistoncalOW-1 Page 2 or 2 <br />