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• i i <br /> TABLE 1 <br /> GROUNDWATER MONITORING DATA <br /> Former Exxon Service Station No 7-3330 <br /> 3128 Nest Benjamin Holt Drive <br /> Stockton, California <br /> (page 2 of 2) <br /> Elevation of Static Ground-Water <br /> Top of Casing Water Elevation Ethyl- Total <br /> Well Date (datum is MSL) Level (datum is MSL) TPHg Benzene Toluene benzene Xylenes Observations <br /> MW-5 6/19/91 0 32 14 31 -13 99 ND NO ND ND ND NA <br /> MW-5 9/25/91 0 32 15 67 -15 35 ND NO ND ND ND NA <br /> MW-5 12/26/91 0 32 14 52 -14 20 5600 1000 7 6 210 1000 NA " <br /> MW-5 1/21/91 0 32 14 15 -13 83 4800 1000 ND 320 83 NA <br /> MW 5 3/26/92 0 32 12 39 -12 07 5700 1200 19 500 780 NA <br /> MW-5 6/27/92 0 32 15 12 -14 80 1700 190 0 9 14 ND NA <br /> MW-5 9/25/92 0 32 16 25 -15 93 <50 <0 5 <0 5 <0 5 <0 5 FP=No, S=No <br /> MW-6 6/19/91 0 02 14 05 14 03 ND ND NO ND ND NA , <br /> MW-6 9/25/91 0 02 15 48 15 46 ND ND ND ND ND NA <br /> MW-6 12/26/91 0 02 14 29 14 27 ND ND ND ND ND NA <br /> MW 6 1/21/91 0 02 13 90 -13 88 NR NR NR NR NR NA <br /> MW 6 3/26/92 0 02 12 48 -12 46 NO 1 0 ND N8 NO NA <br /> MW-6 6/27/92 0 02 14 91 -14 89 ND ND NO ND ND NA <br /> MW-6 9/25/92 0 02 16 04 -16 02 68 0 8 0 5 <0 5 <0 5 FP=No, S=No <br /> Results in parts per billion (ppb) <br /> Measurements given in feet below top of well casing <br /> MSL = Mean Sea Level <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> < = Below detection limit for the method of analysis used <br /> ND = Not detected (detection limits not specified in previous reports) <br /> NR = Analysis not requested <br /> FP = Floating Product <br /> S = Sheen <br /> * = Elevation data from Artesian Environmental Consultants Report <br /> d <br /> 1 <br /> J <br /> 1 <br />