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T y Groundwater Monitoring _"ta and Analytical Results <br /> Chevron Service Station 49-1452 <br /> 334 East Main Street <br /> Ripon,California <br /> EXPLANATIONS: <br /> Groundwater monitoring data and laboratory analytical results prior to November 29,2001,were compiled from reports prepared by Blaine'tech Services, Inc. <br /> TOC=Top of Casing TPH-G—Total Petroleum Hydrocarbons as Gasoline (ppb)=Parts per billion <br /> (fl.)=Feet B=Benzene --=Not Measured/Not Analyzed <br /> DTW=Depth to Water T=Toluene ND=Not Detected <br /> (msl)=Mean Sea Level E=Ethylbenzene QA=Quality Assurance/Trip Blank <br /> GWE=Groundwater Elevation X=Xylenes <br /> TPH-D=Total Petroleum Hydrocarbons as Diesel MTBE=Methyl tertiary butyl ether <br /> * TOC elevations are reference to ms1. TOC elevations were resurveyed by Morrow Surveying on April 14,2003. Elevations are based on USGS benchmark H-1413, <br /> (Benchmark Elevation=71.71 feet,NAVD 88). <br /> BrfEX and MTBE by EPA Method 9260. <br /> '- Well development performed. <br /> II 9-1452s1s/#3RGSR2 7. As of 08/16/04 <br />