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or 3of3 a <br /> Table 1 <br /> Groundwater Elevatlon and Analytical Data _ <br /> ARCO Service Station#595 - <br /> 6100 N Highway 99,Stockton,CA <br /> Well Depth Groundwater Groundwater Ethyl- Xylenes MtBE MtBE <br /> Well Date Elevation to Water Elevation Elevation TPHg Benzene Toluene benzene (total) (EPA 8020) (EPA 8260) DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> MW-9 7116102 P 3372 6355 -2983 -- <50 <0 50 <0 50 <0 50 <0 50 <2 5 0 93 34 <br /> 10002 P 6617 -3245 -262 <50 <0 50 <050 <0 50 <0 50 -- 0 55 010 <br /> MW 10 7116102 P 3127 61 16 -2989 -- <50 <0 50 <0 50 <0 50 <0 50 <2 5 <0 50 2 8 <br /> 1012102 P 6360 -3233 -244 <50 <0 50 <040 <0 50 <0 50 <2 5 <0 50 010 <br /> DMW-1 7116,17102 P 3430 6443 -3013 -- <50 <0 50 26 051 28 38 2 3 2 7 <br /> 1012/02 P 6681 -3251 -238 <50 <0 50 <050 <0 50 <0 50 <25 2 7 028 <br /> DMW-2 7/16,17/02 P 3362 73 1 S -3953 -- <50 <0 50 22 <0 50 2 8 17 12 25 <br /> 1012102 P 6607 -3245 708 <50 <0 50 <0 50 <0 50 <0 50 -• 9 4 026 <br /> DMW-3 7116102 P 3271 6279 -3008 -- <50 <0 50 1 4 <0 50 1 3 73 53 - <br /> 1012102 P 65 34 -3263 -255 <50 <0 50 <0 50 <050 <0 50 <2 5 74 004 <br /> WSW 11/2100 -- -- -- -- <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <2 0 - <br /> 3/5/01 NP -- <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <2 00 <br /> 518/01 NP - -- -- <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <2 00 213 <br /> 8/1/01 NP -- -- <50 <0 50 <0 50 <0 50 <0 50 <2 5 <2 0 <br /> 10/23/01 NP -- -- <50 <0 50 <0 50 <0 50 <0 50 <2 5 <1 0 225 <br /> 2/1/02 NP -- -- - <50 <0 50 <0 50 <0 50 <0 50 <2 5 <0 50 - <br /> 4/11/02 NP -- -- -- -- <50 <0 50 <0 50 <0 50 <0 50 <2 5 <0 50 <br /> 7116102 NP — — — -- <50 <0 50 <0 50 <0 50 <0 50 <2 5 <0 50 <br /> 10/2102 NP — -- — -- <50 <0 50 <0 50 <050 <0 50 -- <0 50 - <br /> QCTB 10/2102 — -- — — -- <50 <0 50 <0 50 <0 50 <0 50 -- -- <br /> Notes <br /> TPHg=Total petroleum hydrocarbons as gasoline <br /> MTBE=Methyl tert-butyl ether =not measured or analyzed <br /> DO=Dissolved oxygen <=below given laboratory detection limit <br /> EPA 8020=analyzed using EPA Method 8020 PMP=purged/not purged <br /> EPA 8260=analyzed using EPA Method 8260 mg/L=milligrams per liter <br /> ft=feet ppb=parts per billion <br /> MSL=mean sea ievel TB-1 =Trip Blank <br /> TOC=top of casing WSW=Water supply well <br /> "=Hydrocarbon pattern is present in the requested fuel quantitation range but does not resemble the pattern of requested fuel <br /> PmjectsWRC015951Reports%Tableslgwtables595 xls <br />