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1 Ise 4o14 a <br /> Groundwater Monitoring Data <br /> 1995 to Present <br /> ARCO Service Station No 548, 1612 Hammer Lane, Stockton, California <br /> Wcll Elcvatton Static. Top Elevation Groundwater <br /> Sampic of Top Watcr of of Flow Ethyl- Total <br /> Number Date ofCastng Uva SLr«n Ground►►ater MmLtllln TPHG Benzene Toluene knzent. X ]cne► MTBE I1] Ob►Ervattonr <br /> MW-6(57) 03/19/97 8 95 30 83 -21 88 E-SE <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S,No 0 <br /> MW-6 05/27/97 895 31 16 -22 21 E-SE <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S,No 0 <br /> MW-6(59) 08/12/97 995 32 55 -2360 E <50 <0 5 <0 5 <0 5 <0 5 <5 No 17P,No S,No 0 <br /> MW-6(57) 11/18/97 895 32 19 -23 24 E 54 59 5 8 16 92 <5 No FP,No S,No 0 <br /> MW-6(57) 02/16/98 895 2883 -1988 SE <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S,No 0 <br /> MW-6(57) 6123/98 [P] 995 2636 -1741 SE <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S,No O <br /> alytiL.al results in parts per hellion P—purge <br /> PHG Total petroleum hydrocarbons as gasoline NP=No purge <br /> BE Methyl-tert-butylether <br /> ]evatton datum is me in sea level <br /> easurements to feet <br /> A-Not analyzed <br /> t-Not measured <br /> NE Not evaluated <br /> * Raised MRI,due to matrix mterteren" <br /> '* The sample c,ontatns a lower boiling point hydrocarbon mixture quantified as gasoline,the Chromatogram does not math the typical gasoline fingerprmt <br /> '** Ruined MRL,due to high analyte c,0114entration requiring sample dilution <br /> Bailer blank <br /> P-Free produt,l <br /> S- Sheen <br /> O Obvious produ6t odor <br /> < 13elow deleL4on lunits used by lahorttory <br /> I I NI[131 was in ilyzi d using USC PA Ntc,thod 8020 <br /> %ample design ittons <br /> MW 4(34) Well ID tnd sample depth(feel) <br /> N\\LSIQMR\08051141111810811698112 US ?) e <br /> she,el[ T' <br /> 8/13198 <br />