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Table 1 (Continued) <br /> Groundwater Monitoring Data <br /> ARCO Service Station 0548, 1612 Hammer Lane,Stockton,Caiifomia <br /> Well Elevation Static Elevation <br /> Sample of Top Water of Total <br /> Number Date of Casing Level Groundwater TPHG Benzene Toluene Ethylbenzene Xylenes TOG Observations <br /> MW-5 <br /> W-44-MW5 03/29/93 937 4425 -3488 930 16 <05 19 97 NA No FP,No S,Yes 0 <br /> MW 5(61) 06/07/93 937 4338 -3401 1,100 40 14 42 58 NA No FP,No S,Yes O <br /> MW-5(60) 09/02/93 937 4532 -3595 1,200 76 17 52 57 NA No FP,No S,Yes 0 <br /> MW-5(60) 12/16/93 937 4303 -3366 820 34 14 39 41 NA No FP,No S,Yes 0 <br /> MW-5(39) 04/08/94 937 3999 -3062 4,800 640 68 670 800 NA No FP,No S,O=NE <br /> MW-5 06/22/94 937 4054 -31 17 9,200 1,100 140 1,300 2,000 NS No FP,No S,O=NE <br /> MW-5(43) 09/23/94 937 4278 -3341 2,700 400 31 150 310 NS No FP,No S,O=NE <br /> MW-5(46) 12/02/94 937 4189 3252 2,200 380 28 210 330 NS No FP,No S,O=NE <br /> MW-6 <br /> MW-6(58) 12/16/93 895 42 77 -3382 <50 <0 5 <06 <0 5 <0 5 NA No FP,No S,No 0 <br /> MW-6(39) 04/08/94 895 3973 -3078 28 48 39 39 22 NS No FP,No S,O=NE <br /> MW-6 06/22/94 8 95 4031 -3136 <10 <0 3 <0 3 <03 <05 NS No FP,No S,O=NE <br /> MW-6(43) 09/23/94 895 42 59 -3364 <50 <0 5 <0 5 <05 <0 5 NS No FP,No S,O=NE <br /> MW-8(46) 12/02/94 895 4166 -3271 <50 <05 <0 5 <0 5 <0 5 NO No FP,No S,O=NE <br /> Analytical rsulls in parts per billion <br /> TPHG-Total petroleum hydrocarbons as gasoline <br /> TOG-Total oil and grease <br /> Elevation datum is mean sea level <br /> Measurements in feet <br /> NS-Not sampled NM-Not measured NE-Not evaluated <br /> ' -Well paved over on 03/04/93 **-Raise MRL due to matrix interference <br /> The sample contains a lower boiling point hydrocarbon mixture quantified as gasoline,the chromatogram does not match the typical gasoline <br /> Fingerprints <br /> #-Bader blank FP-Free product S- Sheen O-Obvious product odor <br /> xls10805114001\110494al As <br />