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Project No 58475-06-24J <br /> Apnl22,2004 _ <br /> Page 4 of 4 <br /> TABLE 1 <br /> SUMMARY OF GROUNDWATER ELEVATION AND ANALYTICAL DATA <br /> SHOP 10 MAINTENANCE STATION <br /> SAN JOAQUIN COUNTY,CALIFORNIA <br /> Notes TOC=Top of Casing <br /> MSL=Mean Sea Level <br /> TPHg=Total petroleum hydrocarbons as gasoline <br /> TPHd=Total petroleum hydrocarbons as diesel <br /> BTEX=Benzene,toluene,ethylbenzene and total xylenes <br /> MTBL=Methyl tert butyl ether by EPA Test Method 8260 <br /> FOCs=Tert-amyl methyl ether(TAME),ethyl tert butyl ether(ETBE),di-isopropyl ether(DIPE)and tert-butanol(TBA)following EPA Test Method 8260 <br /> AgIl=Micrograms per liter <br /> <,ND=Less than laboratory method detection limit <br /> ---=Not available <br /> '_ 'Sample contains hydrocarbons that do not match the diesel pattern However,quantification is based on a diesel standard" <br />