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Ta O . <br /> Groundwater Elevation and Analytical Data <br /> TPH-g,BTEX,Fuel Oygenates,and VOC's <br /> ARCO Service Station#4493 <br /> 205 North Center Street <br /> Stockton,California <br /> cis-1,2- Trichloro. Tetrachloro- 1,2,4- 1,35- <br /> Well Depth Groundwater TPH as Ethyl- MtBE Chloro- dichloro. ethene othene n-But* Isopropyl- Naphth- n-Propyl- trimethyl•trimethyl. <br /> Well Date Elevation to Water Elevation Gasoline Benzene Toluene benzene Xylenes (EPA SM) form ethene (TCE) (PCE) benzene 13e112ene atone benzene benzene benzene <br /> Number Sampled (feet,MSL) (feet,TOC) (nt,MSL) (ppb) (ppb) (ppb) (Ppb) (ppb) (Ppb) (Ppb) (ppb) (ppb) <br /> (ppb) (ppb) (ppb) (ppb) (Ppb) (PPB) (PPB) <br /> MW-1 02116/99 11.94 13.35 -1.41 231 1.35 NO 2.37 NO ND' 11.1 39.4° 433 NO NO NO ND NO ND NO <br /> 03/10/99 13,01 -1.07 — _ <br /> MW-2 02!16199 12.43 14.56 -2.13 NO NO NO NO ND ND' <br /> 03110M 13.70 -1.27 ND 10.86 106 2.50 NQ NO NO ND ND NO <br /> _ _ _ _ _ .. .. <br /> MW-3 02/16/99 12.51 14.64 -2.13 NO NO NO NO NO 7.08' ND N& 2.09 NO NO NO NO NO ND NO <br /> 03/10/99 13.99 -1.48 -- <br /> MW-4 02/16199 12.19 14.41 -2.22 15,000 $03 NO 707 1,550 9,990' <br /> 03/10/99 21.3 ND" ND ND 83 59.2 342 216 1,550 348 <br /> 13.61 -1.42 — — _ 8 <br /> _ <br /> TOC =Top of casing <br /> MSL =Mean Sea Level <br /> TPH =Total petroleum hydrocarbons <br /> ppb =Parts per billion <br /> NO=not detected at or above the method detection limit <br /> a=sample was analyzed by EPA 8260 for fuel oxygenates TBA,DiPE,EtSE,and TAME.All oxygenates were reported as nondetect. <br /> b=samples were analyzed for VOCs by EPA Method 8260. All other VOCs not listed above were not detected at or above the detection limits. <br /> I <br /> i <br /> i <br /> I <br /> I <br /> 7G600.022-021GW Tables <br /> I <br />