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! i <br /> TABLE I - GROUNDWATER MONITORING AND CHEMICAL ANALYTICAL DATA <br /> TOSCO (Former BP) Service Station No 11192 <br /> 1403 Country Club Boulevard <br /> Stockton, California <br /> Total Weill Depth Ground <br /> Well Elev to Floating Water Ethyl- Total <br /> Sample Sample Depth (ft Water Product Elevation TPHg Benzene Toluene benzene Xylenes MTBE MTBE' <br /> No Date (ft) MSL) (ft) (ft) (ft MSL) (ppb) (ppb) (ppb)_ (ppb) (ppb) (ppb) (ppb) <br /> MW-1 8116101 300 500 13 80 000 -880 --- --- --- --- --- <br /> MW-3 8116101 300 568 1460 000 -892 --- --- --- --- __- ___ --- <br /> MW-4 8/16101 300 621 1507 000 -886 --- --- --- --- ___ __- --- <br /> MW-5 8116101 447 5 63 1449 000 -886 - - --- --- --- _-- --- <br /> MW-6 8116101 400 5 28 1400 000 -872 --- --- --- --- ___ <br /> MW-7 8116101 400 569 1462 000 -893 --- --- --- --_ -__ <br /> MW-8 8116101 2872 479 1353 000 -874 <50 <0 50 <050 <0 50 <0 50 <25 <2 0 <br /> MW-9 8116101 2940 426 1336 000 -910 <50 <0 50 <050 <0 50 <050 <25 <2 0 <br /> MW-10 8116101 2950 4 06 1307 000 -901 <50 <0 50 <0 50 <0 50 <0 50 <25 <2 0 <br /> MW-11 8122101 7970 518 1650 000 -1132 <50 <0 50 <050 <0 50 <050 170 110 <br /> EXPLANATION ANALYTICAL LABORATORY <br /> ft =feet Sequoia Analytical Walnut Creek,ELAP#1271 <br /> ft MSL=feet relative to Mean Sea Level <br /> ppb=parts per billion <br /> ND=not detected <br /> ---=not sampled <br /> NA=not analyzed <br /> 1 =Well elevations reported as top of casing(TQC)surveyed by Virgil Chavez Licensed California Land Surveyor No 6323 <br /> 2=MtBE by EPA Method 8020 <br /> 3=MtBE by EPA Method 8260 <br /> ANALYTICAL METHODS <br /> TP11g=Total Petroleum Hydrocarbons as gasoline according to EPA Method 8015 Modified <br /> Benzene,Toluene,Ethylbenzene,and Total Xylenes according to EPA Method 8020 <br /> 14024505-2 <br />