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= M N% = M w I_ <br /> TABLE 1, CONT. <br /> SUMMARY OF GROUNDWATER ELEVATION AND ANALYTICAL DATA <br /> SHOP 10 MAINTENANCE STATION <br /> STOCKTON, CALIFORNIA <br /> PAGE 7 of 7 <br /> TOC =Top of casing elevations <br /> MSL= Mean Sea Level <br /> TPHG =Totai Petroleum Hydrocarbons as Gasoline by EPA Method 8015M <br /> TPHD=Total Petroleum Hydrocarbons as Diesel by EPA Method 8015M <br /> BTEX= Benzene,Toluene, Ethylbenzene, and Tota[Xylenes by EPA Method 8020 <br /> MTBE= Methyl Tertiary Butyl Ether by EPA Method 8020 <br /> < = Less than method detection limits <br /> ------- = Not measured, sampled tested, or present <br /> RWQCB=Central Valley Regional Water Quality Control Board <br /> All measurements are presented in feet <br /> mg/1 = milligrams per Iter <br /> ugll = micrograms per liter <br /> (<5) = MTBE concentration calculated by EPA Method 8260 <br /> 1 <br />