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I <br /> Geofogica(Technics Inca <br /> 2741 River Road <br /> Modesm Cahfarraa 95351 <br /> (209)538-6424/Fax#538-5852 <br /> PORT <br /> Giroundwater Monitonag <br />' Fall Quarter Il997 <br /> George's Sez-vice <br /> 1600 Durham berry Rozd <br /> Tracy, California <br /> Project No 425 2 <br /> November 17,1997 <br /> EXECUTEVIE SUMMARY <br /> This report summarizes the Fall Quarter 1997 round of groundwater monitoring and testing <br /> that took place on September 19, 1997 The test results show that relatively elevated <br /> concentrations of the aromatic hydrocarbon compounds (BTEX) and gasoline range <br /> petroleum hydrocarbons (TPH-G) are present in monitoring well MW-1, MW-2, MW-4, <br /> MW-5 and MW-102 Free floating gasoline product was not observed in MW-2 <br /> Three domestic water wells in the immediate area of the tanks were tested and found not to <br /> contain gasoline at this time <br /> The average groundwater elevation has decreased 121 feet since the May 1997 monitoring <br /> event A site specific gradient and bearing were calculated and found to be 0 0020 ft/ft at <br /> N04°W A vertical groundwater gradient was measured between MW-2 & 102 and found to <br /> be 0 0035 ft/ft <br />