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TASI • - <br /> ADDITIONAL GROUNDWATER ANALYTICAL DATA <br /> Shell-branded Service Station ` <br /> 2575 Country Club Boulevard <br /> Stockton,California <br /> SAP Code 136144 <br /> Incident No 98996184 <br /> DI-Isopropyl 1 Tert-amyl methyl <br /> Sample Ethanol t-Butanol ether Ethyl tert-butyl ether; ether Methanol Volatile Organics by EPA 8260 <br /> Date (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) I (ug/L) (ug/L) <br /> RW-1A <br /> Not detected except Benzene 13000,Toluene 15000,allot <br /> 02-Sep-97 <1000000 <200000 <4000 <4000 <4000 280000 detected Total Xylenes 9400 ppb <br /> 02-Dec-97 <500000 <100000 <2000 <2000 <2000 82000 NA <br /> 29-Jan-98 <1200000 <250000 1 <5000 <5000 <5000 100000 NA <br /> 23-Apr-98 <5000 <1000 1 <20 <20 i 5300 110000 NA <br /> 29-Jul-98 <1250000 <250000 <5000 <5000 <5000 110000 NA <br /> 06-Oct-98 <1000000 <200000 <4000 <4000 4300 98000 NA <br /> 27-Jan-99 <2500000 <500000 <10000 <10000 <10000 180000 NA <br /> 15-Apr-99 <3000000 <200000 <2000 <2000 2200 49000 NA <br /> 27-Jul-99 <1250000 <250000 <2500 <2500 4040 15200 NA <br /> 28-Oct-99 <1250000 <250000 <2500 <2500 2830 <10000 I NA <br /> I <br /> RW-1A(DUP) <br /> Not detected except Benzene 14000,Toluene 18000, <br /> 02-Sep-97 <1250000 <250000 <5000 <5000 ' <5000 240000 allot detected Total Xylenes 13000 ppb <br /> 02-Dec-97 <620000 <120000 <2500 <2500 <2500 77000 NA <br /> Cal Trans Well Down,Country Club @ Plymouth <br /> 05-Sep-97 <500 <100 <2 0 <20 <2 0 <1000 Not detected except for Toluene 190 ppb <br /> 02-Dec-97 <500 <100 <2 0 <20 <2 0 ' <1000 NA <br /> 29-Jan-98 <500 <100 <2 0 <20 <2 0 <1000 NA <br /> 23-Apr-98 <500 <100 <2 0 <20 <2 0 <1000 NA <br /> 29-Jul-98 <500 <100 <2 0 <20 <20 <1000 NA <br /> 06-Oct-98 <500 <100 <20 <20 <20 <1000 NA <br /> 27-Jan-99 <500 <100 <20 <20 <20 <2DD0 NA <br /> 15-Apr-99 <3000 <200 <2 00 <2 00 <200 <1000 NA <br /> 27-Jul-99 <1000 1 <200 <2 00 <2 00 1 <2 00 <1000 NA <br /> 0783 7 <br />