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TABLE 1-SUMMARY OF RESULTS OF GROUNDWATER SAMPLING <br /> BP OIL COMPANY SERVICE STATION NO.11193 <br /> 3202 WEST HAMMER LANE,STOCKTON,CALIFORNIA <br /> ALISTO PROJECT NO.10.136 <br /> i <br /> WELL DATE OF CASING DEPTH TO GROUNDWATER TPH-G TF%D TPH B T E X HVOC DO LAB <br /> ID SAMPLING/ ELEVATION (a) WATER ELEVATION (b) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppm) <br /> MONITORING (Feet) (Feet) (Feet) <br /> MW-5 04125!94 4.38 17.40 -13.02 170 - - 34 1.0 ND<0.5 8.1 - 3.9 PACE <br /> MW-5 0728/94 4.36 17.86 -13.48 1000 - 440 19 10 38 - 3.9 PACE <br /> OG1 (c) 0728194 - - - 1200 -- --- 470 23 11 46 - - PACE <br /> MW-5 IZ /94 4.38 16.34 -13.96 830 - - 260 5.3 31 21 - 4.6 PACE <br /> QGi (c) 12/09/94 - - - 1000 - - 280 6 34 24 - - PACE <br /> MW-6 0425/94 3.56 16.73 -13.17 53 - - ND<0.5 ND<0.5 0.6 2.4 - 2.0 PACE <br /> MW-6 0728194 3.56 17.20 -13.64 69 --- ND<0.5 ND<0.5 ND<0.5 ND<0.5 - 2.2 PACE. <br /> MW-6 12/09/94 3.56 17.70 -14.14 ND<W - - ND<0.5 ND<0.5 ND<0.5 ND<1 --- 3.5 PACE <br /> MW-7 0425/94 4.46 17.59 -13.13 76 - - 1.0 ND<0.5 ND<0.5 2.0 - 4.7 PACE <br /> MW-7 0728!94 4.46 18.06 -13.60 67 - - 6.8 ND<0.5 ND<0.5 ND<0.5 - 4.6 PACE <br /> MW-7 12/09/94 4.46 18.78 -14.32 57 - - 5.1 0.5 ND<0.5 ND<1 - 4.7 PACE <br /> OC-2 (I) 04/04/93 - - - ND<50 - --- ND<0.5 ND<0.5 ND<0.5 ND<0.5 - --- PACE <br /> OG2 (1) 10/05/93 - - - ND<50 - ND<0.5 ND<0.5 ND<0.5 ND<0.5 - - PACE <br /> QG-2 (1) 01/07/94 -- - - ND<50 - - ND<0.5 ND<0.5 ND<0.5 ND<0.5 --- - PACE <br /> OC-2 (1) 0420/94 - - - ND<50 -- -- ND<0.5 ND<0.5 ND<0.5 ND<0.5 --- --- PACE <br /> QC-2 (t) 0728!94 - --- - ND<50 - - ND<0.5 ND<0.5 ND<0.5 ND<0.5 - PACE <br /> O&2 (1) 12109!94 --- - - ND<50 - - ND<0.5 ND<0.5 ND<0.5 ND<1 --- -- PACE <br /> ABBREVIATIONS: NOTES: <br /> TPH-G Total petroleum hydrocarbons as gasoline (a) Casing elevations surveyed to the neamst 0.01 foot relative to mean sea level. <br /> TPH-I) Total petroleum hydrocarbons as diesel <br /> TPH Total petroleum hydrocarbons (b) Groundwater elevations In feet above mean sea level. <br /> B Benzene <br /> T Toluene (c) Blind duplicate. <br /> E Ethylbenzane <br /> X Total Wanes (d) Sample pattern does not match gasoline standard pattern. <br /> HVOC Halogenated volatile organic compounds <br /> DO Dissolved oxygen (a) Detection limits vary;see laboratory report. <br /> ppb Parts per billion <br /> ppm Parts per million (f) Travel blank. <br /> Not measured/analyzedlapplicable <br /> ND Not detected above reported detection times <br /> PACE Pace,Inc. 1 <br /> Eia10-13et3ss4.wa2 <br /> 24-Feb-95 PAGE 2 <br />