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Groundwater Elevation and Analytical Data <br /> ARCO Service Station 4932 <br /> 16 E Harding Way <br /> Stockton,California <br /> Well Depth Groundwater TPN as Ethyl- <br /> Well Date Elevation to Water Elevation Gasoline Benzene Toluene benzene Xylenes MtBE TAME TBA EtBE 1,2-DCA <br /> Number Sampled feet,MSL) (feet,TOC) (feet,MSL) b (ppb) (ppb) (ppb) b b) b b b b <br /> MW-1 9/5/00` 1241 2713 -1472 1,470 128 732 512 254 268 370 <200 <2 0 238 <br /> MW-2 915100' 1311 2760 -1449 1,330 394 194 343 104 1,420 460 215 <2 0 714 <br /> MW-3 9/5100" 1170 2713 -1543 499 294 <0 50 <0 50 155 562 <2 0 <200 <2 0 <2 0 <br /> a <br /> MW 4 9/5100' 1198 2663 -1465 166,000 10,500 43,600 5,230 25,400 708,000 427 26,100 222 137 <br /> SVE-1 915/00` 1184 2645 -1461 66,600 1,770 8,000 2,550 12,900 1,140 902 <200 <2 0 404 <br /> TOC=Tap of Casing <br /> MSL=Mean Sea Level <br /> TPN=Total Petroleum Hydrocarbons <br /> ppb=parts per billion <br /> MtBE results are by EPA Method 8260 <br /> =sample was analyzed for DIPE and EDB,and reported as nondetectable <br /> i <br /> I <br />