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1A . <br /> Groundwater Analytical Results <br /> Former Unocal Service Station#0187 <br /> 437 East Mmer Avenue <br /> Stockton, California <br /> Dissolved Inert Gases Dissolved Organic Total Bicarbonate Carbonate Hydroxide <br /> Well ID Date T 02^ N2 CO2 CHd Carbon Iron Alkalinity Alkalinity Alkalinity <br /> (%) (%) NO (%) (PPM) (PPM) (PPM) (PPM) (PPM) <br /> NP-1-111 02/05/99 <10 <40 042 0 10 10 091 270 <1 0 <1 0 <br /> NP-2-22 02/05/99 <10 <40 58 079 35 65 480 <br /> <10 <10 <br /> NP-2-60 02/05/99 <10 <40 <0 15 5 1 44 026 <1 0 1,600 300 <br /> < < 4 20 240 <1 0 <1 0 <br />� <br /> NP-2-116 02/05/99 10 40 0 23 0 58 3 <br /> EXPLANATIONS, ANALYTICAL METHOD. <br /> Oz = 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 xis/#280045 2 As of 11/24/99 <br />