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December 12, 1990 S4I <br /> Subsurface Investigation AGS 38012-5 <br /> Former Unocal Station No. 2859, Stacldon, California <br /> TABLE 5 <br /> LABORATORY ANALYSES OF GROUND-WA`T'ER SAMPLES <br /> Former Unocal Service Station No. 2859 <br /> 1665 Pacific Avenue <br /> Stockton, California <br /> (page 2 of 2) <br /> Eth%'1- Total <br /> Sample Sample L2nzPne Toluene benzene Xylenes <br /> 1p Date TPHg <br /> 150 <0.50 <0.50 <0.50 1.4 <br /> �W-43'-MW4 08/28/89 36 <0.50 <0.50 <0.50 <0.50 <br /> W-42-MW4 11/30/89 <0.50 <0.50 <0.50 <0.50 <br /> W-43-MW4 03/01/90 100 130 <0.50 <0.50 <0.50 <0.50 <br /> W-45-MW4 05/30/90 130 0.9 1.2 <br /> W-51-MW4 08/24/90 <br /> <0.5 0.7 <br /> 240 <0.50 <0.50 8.1 <0.50 <br /> W-43-MW5 08/28/89 95 <0.50 <0.50 2.2 <br /> W-43-MW5 11/30/£9 <0.50 <0.50 2.2 1.3 <br /> 5 03/01/90 80 <0.50 <0.50 <0 <br /> W_45-45 05/30/90 .50 <br /> 47-43--MW <br /> 30 <0.50 4.1 <0.5 <br /> <0.5 <d.5 <br /> W--51-MW5 08/24/90 180 <br /> Results in parts per billion (ppb) gasoline <br /> TPHg = <br /> Total petroleum hydrocarbons as d of analysis <br /> 5 <br /> < = Below detection limit or not detected by metho <br /> used <br /> w-51-MW5 <br /> t Water sample number collected <br /> Sample depth in feet below surface <br /> - Water <br /> 17 <br /> A, llld GeoSystems <br /> , <br />