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_ RINCON STgEET Scale <br /> 0 15 30 60 Feet <br /> I <br /> I Inch=30 Feet <br /> S-2 $ <br /> .28.60 <br /> <1.0/<0.005/<0.025/50' / <br /> <1.0/<0.005/<0.025/65' ` <br /> <501<0.51<2.5 <br /> F I 288) `P�vi <br /> WI Canopy tp 4iia A <br /> E i / `. `\ ° > Waste Oil Tank S-3 <br /> ❑ ❑ �•� \\ -28.60 <br /> ` \ <1.0/<0.005/<0.025/50' <br /> F i <1.0/<0.005/<0.025/65' <br /> a I n 1 <br /> Former USTs <50/<0.5/<2.5 <br /> pa Dispenser Islands O <br /> ►a I O\ EXPLANATION <br /> ►� Canopy <br /> **,, °° O Groundwater Monitoring Well <br /> UST' 9 °° Soil Boring <br /> ii \ ° O 1,600/<1.2/<6.2/65'TPPH/Benzene/MTBEin <br /> ❑ °° soil/Depth in feet. <br /> °° Concentrations in ppm. <br /> o n u o \\ <501<0.5/<2.5 TPPHBenzene/MTBE in <br /> Dispenser Islands ground water. <br /> I Concentrations in ppb. <br /> Planter -28.60 Ground water elevation in feet <br /> ❑ S-I 28.49 Ground water elevation contour in feet <br /> SB-3 1,800/0.89/<2.5/55' referenced to mean sea level(MSL). <br /> 3,800/2.24/<5.0/40' 5,400/<2.5/<12/60' Arrows indicate approximate ground <br /> _2,400/<2.5/<25/45' 1,600/<1.2/<6.2/65' water flow direction. <br /> 18,700/26.2/<250/50' seperate phase hydrocarbons Approximate hydraulic gradient=0.001. <br /> 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 11-May-98. <br /> PLATE GROUND WATER CONTOUR/CHEMICAL CONCENTRATION MAP C AMBRIA <br /> 2 Shell Service Station <br /> 2494 Fremont Street 240-0797 <br /> Stockton California <br /> Drawn by: MRM Date: 8-.tun-98 Approved By: c aC Date:/D S 5� <br />