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GeofoglcafT"echnics Inc. <br />' 27411?jver Road <br /> Modesto,Ca&farnia 95351 <br /> (209)538-6424/faX#538-5852 <br /> REPORT <br /> Groundwater Monitoring <br /> Xd Quarter 2000 <br /> Morita Brothers <br /> 814 E Charter Way <br /> Stockton, CA <br /> Project No 724 2 <br /> October 18, 2000 <br /> EXECUTIVE SUMMARY <br /> This report summarizes the Yd Quarter 2000 round of groundwater monitoring and testing <br /> that took place on September 26, 2000 The laboratory analyses indicate that detectable <br /> concentrations of the aromatic hydrocarbon compounds (BTEX) are present in three of the <br /> site's five monitoring wells Gasoline range petroleum hydrocarbons (TPH-G) are present in <br />' four of the wells <br /> The oxygenated fuel compound MTBE was detected in well MW-2 and this is consistent <br />' with the historical data from the site investigation <br /> The groundwater level decreased approximately 1 67 feet since the June 2000 monitoring <br /> event Groundwater gradient calculations show that groundwater flow is S84°E at 0 0017 <br /> ft/ft <br /> ' 1.0 GROUNDWATER MONITORING <br /> ' 1.1 Hydrogeology of Site <br /> A site-specific groundwater gradient and bearing was calculated from the depth to water <br /> measurements taken during the groundwater monitoring The gradient was 0 0017 ft/ft <br /> flowing S84°E, which is consistent with previous monitoring events The average elevation <br /> r <br />