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WELL CONCENTRATIONS <br /> IFormer Shell Service Station <br /> Ill 880 Victor Road <br /> Lodi, CA <br /> MTBE MTBE Depth to GW <br /> Well ID Date TPPH B I[T ` E X a 8020 - 8260 TOC Water Elevation <br /> u /L u /L Ug/L) { (ug/L (ug/L u IL u IL MSL ft MSL _ <br /> ' I i� <br /> P-2 09/16/2002 INA NA NA II NA NA NA NA 5451 5180 271 <br /> P-2 09/19/2002 <5,000 <50 <50 li <50 <50 NA 23,000 5451 5187 264 <br /> P-2 10/30/2002 <500 <5 0 <5 0 I` <5 0 <5 0 NA 2,600 5451 5186 265 <br /> i <br /> P-2 02/19/2003 <1,000 <10 <10 <10 <10 NA 540 5451 5035 416 <br /> P-2 OW03/2003 <5,000 <50 <50 kl <50 a100 NA 640 54 59 5066 385 <br /> Abbreviations f <br /> TPPH=Total petroleum hydrocarbons as gasoline by EPA Method 8260B, prior to November 20, 2000, analyzed by EPA Method 8015 <br /> BTEX= Benzene,toluene,ethylbenzene,xylenes by EPA Method 82608, prior to November 20, 2000,analyzed by EPA Method 8020 <br /> MTBE= Methyl-tertiary-butyl ether <br /> TOC=Top of Casing Elevation <br /> GW= Groundwater <br /> ug/L= Parts per billion <br /> MSL=Mean sea level <br /> ft=Feet I <br /> <n= Below detection limit 11 <br /> NA= Not applicable <br /> Notes <br /> a=This sample was analyzed outside of EPA recommendedjhold time <br /> Site surveyed on November 20, 1999, by Virgil Chavez Land Surveying of California <br /> Site surveyed on January 4, 2002, by Virgil Chavez Land Surveying of California <br /> Site surveyed on September 20,2002,by Virgil Chlavez',Land'Surveying of California ' <br /> i <br /> v t <br /> ii IV� <br /> I <br /> r i P4 <br /> i <br /> II <br />