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Geofogica[TecfmW--S Inc. <br /> 2741 Pjver<Road <br /> Wodesto,(Alfonna 95351 <br /> (209)538 642411ax#538--5852 <br /> REPORT <br /> Groundwater Monitoring <br /> V Quarter 2001 <br /> I Morita Brothers <br /> 81E4 E. Charter Way <br /> Stockton, CA <br /> Project No 724 2 <br /> April 11, 2001 <br /> EXECUTIVE SUMMARY <br /> This report summarizes the 151 Quarter 2001 round of groundwater monitoring and testing <br /> that took place on March 15, 2001 This is the second monitoring event since the five new <br /> monitoring wells were installed on November 20-22, 2000 The laboratory analyses <br /> indicate that five of the ten monitoring wells on this site continue to be impacted by <br /> Igasoline range petroleum hydrocarbons The groundwater contamination plume appears to <br /> have migrated off site to well MW-106 The contamination is present in well MW-106 at a <br /> depth of approximately 23 feet below the water table <br /> The oxygenated fuel compound MTBE was detected in wells MW-2, MW-106 and MW- <br /> 107 The concentration in MW-107 was an order of magnitude higher then MW-2 at 77 and <br /> 8 4 fig/], respectively <br /> The groundwater level increased approximately 0 69 feet since the January 2001 monitoring <br /> event Groundwater gradient calculations show that groundwater flow is S8 VE at 0 0035 <br /> ft/ft <br />