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i <br /> AI <br /> R i N C O N Scale <br /> STREET - , <br /> 0 15 30 60 Feet <br /> 1 Inch=30 Feet <br /> i <br /> S-2 <br /> 2860 <br /> <1 0/<0 0051<0 025150' <br /> <1 0/1 005/<0 025165' <br /> <501<0 51<2 5 ,\ <br /> i <br /> w I <br /> Canopy <br /> Station Building and <br /> 4 Lube Bays <br /> Waste Oil Tank S-3 <br /> 2860 <br /> <10/<0 0051<0 025/50' <br /> <10/<0 0051<0 025/65' <br /> 1 <br /> W <br /> A� Former UST's <50/<o S/<2 5 <br /> Dispenser Islands O ` <br /> EXPLANATION <br /> r-� Canopy 4°° O <br /> W - O Groundwater Monitoring Well <br /> UST's a 28S ° Sot!Boring <br /> 6!7a a O 1,6001<12/<b 2165'TPPH/Benzene/MTBE in <br /> u lk is ; Lj ', sot I/Depth in Feet <br /> II II li II <br /> u u i� n ` ° ° Concentrations in ppm <br /> ti n A <50/<0 5115 TPPH/Benzene/MTBE in <br /> ll� N` y ground water <br /> Dispenser Islands <br /> i Concentrations in ppb <br /> 1160 51 Ground water elevation in feet <br /> Planter S-1 2849 <br /> Ground water elevation contour in feet <br /> SB-3 ` 1,80010 891<2 5155' r referenced to mean sea level (MSL) <br /> 3,80012 24/<5 0/40 5,4001<2 5/<12/60 Arrows indicate approximate ground <br /> _2,4001<2 5/<25/45' 1,6001<12/<6 2/65' _ water flow direction <br /> 18,700/26 2/<250/50' seperate phase hydrocarbons Approximate hydraulic,gradient=0 001 <br /> T <br /> � JI — — _ Notes Soil samples were collected on 24, <br /> F R E M O N T STREET 29,and 30-Apr-98 Groundwater <br /> monitoring was performed on l 1-May-98 <br /> PLATE GROUND WATER CONTOURICHEMICAL CONCENTRATION MAP C AMBRIA <br /> 2 She]] Service Station <br /> 2494 Fremont Street 240-0797 <br /> Stockton California <br /> Drawn by MRM Date 8-Jun-98 Approved By Date <br />