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Table 4 <br /> Groundwater Analytical Results <br /> Former Unocal Service Station No.0187 <br /> 437 East Miner Avenue <br /> Stockton, California <br /> Dissolved Inert Gases Dissolved Organic Total Bicarbonate Carbonate Hydroxide <br /> WELL ID DATE 02 N2 CO2 CH4 Carbon Iron Alkalinity Alkalinity Alkalinity <br /> (%) (PPM) (PPM) (PPM) (P M) (PPM) <br /> I <br /> NP-1-65 02/05/99 <10 <40 <0.15 1.7 56 0.72 <1.0 1,800 2,500 <br /> NP-1-111 02/05199 <10 <40 0.42 0.10 10 0.91 270 <1.0 <1.0 <br /> i <br /> NP-2-22 02/05199 <10 <40 5.8 0.79 3.5 6.5 480 <1.0 <1.0 <br /> NP-2-60 02/05/99 <10 <40 <0.15 5.1 4.4 0.26 <1.0 1,600 300 <br /> NP-2-116 02/05/99 <10 <40 0.23 0.58 4.3 2.0 240 <1.0 <1,0 <br /> EXPLANATIONS: ANALYTICAL METHODS: <br /> 02=Oxygen EPA Method 3416M for Dissolved Inert Gases <br /> N2= Nitrogen EPA Method 415.1 for Dissolved Organic Carbon <br /> CO2= Carbon Dioxide EPA Method 6010 and General Minerals analyses for Total iron/Iron <br /> CH4 = Dissolved Methane SM2320B for Bicarbonate, Carbonate and Hydroxide Alkalinity <br /> %= Percentage <br /> (ppm)=Parts per million <br /> i 06 <br />