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• • 1 • <br /> Table 4 <br /> i <br /> Groundwater Analytical Results <br /> Former Unocal Service Station#0187 <br /> 437 East Miner Avenue <br /> Stockton, California <br /> Dissolved Inert Gases Dissolved Organic Total Bicarbonate Carbonate Hydroxide <br /> Well ID Date 02 N$ CO2 CH, Carbon Iron Alkalinity Alkalinity Alkalinity <br /> (%) (%) (%) (%) (PPM) (ppm) m) (ppm) m) <br /> NP-1-111 02/05/99 <10 <40 042 0 10 10 091 270 <10 <10 <br /> NP-2-22 02/05/99 <10 <40 5 8 079 3 5 65 480 <10 <10 <br /> NP-2-60 02/05/99 <10 <40 <0 15 5 1 44 026 <10 1,600 300 <br /> NP-2-116 02/05/99 <10 <40 023 058 4 3 20 240 <10 <10 <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 /> 0187 xls/#280045 2 As of 08/20199 <br />