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�sble 1 P2 of 2 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#434 <br /> 501 W Kettleman Ln,Lodi,CA <br /> Well Depth Groundwater Groundwater Ethyl- Xylenes <br /> Well Date Elevation to Water Elevation Elevation TPHg Benzene Toluene benzene (total) MtBE DO O&G <br /> Number Sampled (ft,MSL) (ft,TOC) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) (mg/L) <br /> W-9 1/21/00 P 4440 5616 -1176 -- <50 <0 50 <0 50 <0 50 <0 50 558 2 5 -- <br /> 4/28/00 P 5527 -1087 089 <50 <0 50 <0 50 <0 50 <0 50 <2 5* 593 -- <br /> 9/5/00 NP 6003 -1563 .476 113 <0 50 <0 50 <0 50 707 <2 0 -- 430 <br /> 11/1/00 P 5938 -1498 065 <50 <0 50 <0 50 <0 50 <0 50 <2 50 -- <5 0(a) <br /> 12/15/00 P 5821 -1381 1 17 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 109 800 <br /> 3/15/01 P 5644 -1204 177 <50 0 <0 500 <0 500 <0 500 <0 500 <2 00* 176 <5 00 <br /> 5111/01 P 5643 -1203 0 01 <50 0 <0 50 <0 50 <0 50 <0 50 <2 00* 334 <50 <br /> 9/12/01 P 6185 -1745 -542 <50 <0 50 <0 50 <0 50 <0 50 <2 0* 428 <5 0 <br /> Trip 5/11/01 - -- -- -- <50 0 <0 50 <0 50 <0 50 <0 50 <2 00 -- -- <br /> Blank 9/12101 — — — -- <50 <0 50 <0 50 <0 60 <0 50 — — — <br /> Notes <br /> TPHg=Total petroleum hydrocarbons as gasoline <br /> MtBE=Methyl tort-butyl ether <br /> DO=Dissolved oxygen <br /> 0&G=Oil&grease <br /> ft=feet <br /> MSL=mean sea level <br /> TOC=top of casing <br /> ppb=parts per billion <br /> mg/L=milligrams per liter <br /> P/NP=purged/not purged <br /> =analyzed using EPA Method 8260 <br /> <=below given laboratory detection limit <br /> --=not measured or analyzed <br /> (a)=sample analyzed for Total lead using EPA Method 6010 and Chlorinated hydrocarbons using EPA Method 624,analytes reported as nondetectable <br /> Projects/ARCO/434/ReportsJTables/gwtables434 xls <br />